WATER TANK ASSEMBLY OF HEATING DEVICE, AND HEATING DEVICE

CROSS-REFERENCE TO RELATED APPLICATIONS

This present application is based on and claims priority to Chinese Patent Application No. 202110969662.X, filed on Aug. 23, 2021, titled “WATER TANK ASSEMBLY OF HEATING DEVICE, AND HEATING DEVICE,” field by WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. CO., LTD., and Chinese Patent Application No. 202120676274.8, filed on Apr. 1, 2021, titled “HEAT EXCHANGE ASSEMBLY AND WATER HEATER,” filed by WUHU MIDEA KITCHEN AND BATH APPLIANCES MFG. CO., LTD. and MIDEA GROUP CO., LTD.

FIELD

The present disclosure relates to the field of heating device technologies, and more particularly, to a water tank assembly of a heating device, and a heating device.

BACKGROUND

A heating device using fully premixed technology is increasingly valued by consumers since it has lower smoke emissions and is more environmentally friendly. As a core component of the heating device, a water tank assembly is a conversion device for converting cold water into hot water.

In the related art, a water passageway of first heat exchange pipes in an existing water tank assembly has unreasonable design, a water flow rate or a water flow speed is not uniform in the first heat exchange pipes, which leads to a phenomenon of empty pipes or water siltation in some first heat exchange pipes having a relatively small water flow rate and a relatively slow water flow speed. This easily causes wall surfaces of the first heat exchange pipes to have excessively high temperature, causing water in the first heat exchange pipes to be vaporized, as well as accelerating formation of scale in the first heat exchange pipes. As a result, thermal effect may occur in the first heat exchange pipes, which would damage the first heat exchange pipes, and will result in water leakage of the first heat exchange pipes in severe cases, thereby shortening service lives of the water tank assembly and the heating device.

In addition, when high temperature smoke exchanges heat with a heat exchange pipe in a water heater, a side of the heat exchange pipe near an input of the high temperature smoke has a higher temperature, while a side of the heat exchange pipe near an output of the high temperature smoke has a lower temperature. As a result, the heat exchange pipe is unevenly heated, and thus a connection between the heat exchange pipe and an inner wall of a tank body of the water heater is prone to rupture, resulting in water leakage.

SUMMARY

The present disclosure aims to solve at least one of technical problems in the related art.

To this end, one purpose of the present disclosure is to propose a water tank assembly. With the water tank of the heating device, flow resistance of water in a first heat exchange pipe can be reduced to enable a water flow rate or a water flow speed in the first heat exchange pipe to be uniform. As a result, water vaporization and scaling in the first heat exchange pipe can be alleviated. Therefore, service lives of the water tank assembly and the heating device can be prolonged.

Another purpose of the present disclosure is to propose a heating device having the water tank assembly of the heating device as described above.

A water tank assembly of the heating device according to embodiments of the present disclosure includes a housing body, a main heat exchange pipe assembly, and a condensation pipe assembly. The housing body has a smoke inlet and a smoke outlet. The housing body includes a first side plate assembly and a second side plate assembly that are opposite to each other. A plurality of first water boxes are formed at the first side plate assembly. A plurality of second water boxes are formed at the second side plate assembly. A water inlet and a water outlet are formed on the first side plate assembly. The water inlet is in communication with one of the plurality of first water boxes, and the water outlet is in communication with one of the plurality of first water boxes. The main heat exchange pipe assembly includes a plurality of first heat exchange pipes. The plurality of first heat exchange pipes are located at a side of the main heat exchange pipe assembly closest to the smoke inlet. Each of the plurality of first water boxes corresponding to the plurality of first heat exchange pipes is in communication with at least three of the plurality of first heat exchange pipes. A first heat exchange pipe with the highest water temperature among the plurality of first heat exchange pipes has a circular cross section, and no disturbance member is disposed in the first heat exchange pipe with the highest water temperature. The condensation pipe assembly is located at a side of the main heat exchange pipe assembly facing towards the smoke outlet. The plurality of first water boxes are in communication with the plurality of second water boxes via the main heat exchange pipe assembly and the condensation pipe assembly.

With the water tank assembly of the heating device, by designing the first heat exchange pipe with the highest water temperature among the plurality of first heat exchange pipes to have the circular cross section and providing no disturbance member in the first heat exchange pipe with the highest water temperature, the flow resistance of the water in the first heat exchange pipe can be reduced to enable the water flow rate or the water flow speed in the first heat exchange pipe to be uniform. As a result, the water vaporization and the scaling in the first heat exchange pipe can be alleviated. Therefore, service lives of the water tank assembly and the heating device can be prolonged.

In one embodiment of the present disclosure, each of the plurality of first heat exchange pipes has a circular cross section, and no disturbance member is disposed in each of the plurality of first heat exchange pipes.

In one embodiment of the present disclosure, the main heat exchange pipe assembly further includes a plurality of second heat exchange pipes, and each of the plurality of second heat exchange pipes has an elliptic cross section.

In one embodiment of the present disclosure, the water tank assembly further includes a plurality of first fins arranged at intervals in a length direction of the first heat exchange pipe. Each of the plurality of first heat exchange pipes and each of the plurality of second heat exchange pipes pass through the plurality of first fins.

Further, each of the plurality of first fins has a through hole. The through hole penetrates the first fin in a thickness direction of the first fin.

In one embodiment of the present disclosure, the condensation pipe assembly includes a plurality of third heat exchange pipes. At least three of the plurality of third heat exchange pipes are correspondingly provided for each of the plurality of first water boxes in communication with the condensation pipe assembly.

In one embodiment of the present disclosure, each of the plurality of third heat exchange pipes is formed into a circular pipe. The at least three of the plurality of heat exchange pipes corresponding to each of the plurality of first water boxes are arranged in rows and columns.

In one embodiment of the present disclosure, the housing body further includes a smoke baffle located at a side of the condensation pipe assembly away from the main heat exchange pipe assembly, and the smoke outlet is formed on the smoke baffle.

In one embodiment of the present disclosure, the smoke baffle includes a plurality of guide plates away from the smoke inlet. The smoke outlet has a first channel. Ends of the plurality of guide plates away from the smoke inlet are arranged at intervals to form the first channel.

In one embodiment of the present disclosure, the smoke outlet further has a second channel, and a plurality of second channels are formed on each of the plurality of guide plates.

A heating device according to embodiments of the present disclosure includes the water tank assembly as described above.

A water tank assembly according to embodiments of the present disclosure includes a plurality of side plate assemblies, a heat exchange pipe, and a leak-proof plate. A heat exchange chamber is formed by enclosing the plurality of side plate assemblies. The heat exchange pipe is disposed in the heat exchange chamber and has an inlet end and an outlet end. The leak-proof plate is disposed in the heat exchange chamber and connected to the plurality of side plate assemblies. A mounting hole is formed on the leak-proof plate. The inlet end of the heat exchange pipe passes through the mounting hole and penetrates the plurality of side plate assemblies sequentially; and/or the outlet end of the heat exchange pipe passes through the mounting hole and penetrates the plurality of side plate assemblies sequentially.

In one embodiment of the present disclosure, an outer wall of the heat exchange pipe is attached to an inner wall of the mounting hole tightly.

In one embodiment of the present disclosure, a protective gap is formed between the leak-proof plate and the side plate assembly.

In one embodiment of the present disclosure, the leak-proof plate includes a plate body and a barrier. A gap is formed between the plate body and the respective one of the plurality of side plate assemblies, and the mounting hole is formed on the plate body. The barrier is disposed on an outer peripheral edge and sealingly connected to the respective side plate assembly. The protective gap is formed by enclosing the plate body, the barrier, and the respective side panel assembly.

In one embodiment of the present disclosure, a first sealing ring edge is disposed on a side of the barrier away from the plate body and sealingly connected to the side plate assembly.

In one embodiment of the present disclosure, a plurality of heat exchange pipes are provided. A plurality of mounting holes are formed on the leak-proof plate and arranged in one-to-one correspondence to the plurality of heat exchange pipes.

In one embodiment of the present disclosure, the leak-proof plate further includes a second sealing ring edge. An end of the second sealing ring edge is connected to the inner wall of the mounting hole, and another end of the second sealing ring edge protrudes in an axial direction of the mounting hole. The second sealing ring edge is disposed around the outer wall of the heat exchange pipe.

In one embodiment of the present disclosure, the second sealing ring edge protrudes from a side of the leak-proof plate facing towards the side plate assembly.

In one embodiment of the present disclosure, a gap is formed between an end of the second sealing ring edge away from the leak-proof plate and the side plate assembly.

In one embodiment of the present disclosure, the water tank assembly further includes a reservoir disposed on an outer side of the side panel assembly and in communication with the heat exchange pipe of the water tank assembly. The reservoir may be a first water box or a second water box.

A heating device according to embodiments of the present disclosure includes the water tank assembly as described above and a burner in communication with the heat exchange chamber of the water tank assembly. The burner is configured to generate high temperature smoke through combustion. The water tank assembly of the heating device is a water tank assembly of a fully premixed gas heating device.

In one embodiment of the present disclosure, the water tank assembly has a first end and a second end opposite to the first end, and the burner is disposed at the first end of the water tank assembly. A radial section of the heat exchange pipe of the water tank assembly is of an elliptical shape, and a long axis of the elliptical shape extends in a direction from the first end to the second end of the water tank assembly.

Additional aspects and advantages of the present disclosure will be provided at least in part in the following description, or will become apparent at least in part from the following description, or can be learned from practicing of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or additional aspects and advantages of the present disclosure will become more apparent and more understandable from the following description of embodiments taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a cross-sectional view of a heating device according to an embodiment of the present disclosure.

FIG. 2 is a schematic view of a water tank assembly of a heating device according to an embodiment of the present disclosure.

FIG. 3 is another schematic view of a water tank assembly of a heating device according to an embodiment of the present disclosure in another direction.

FIG. 4 is a partial sectional view of a water tank assembly of a heating device according to an embodiment of the present disclosure.

FIG. 5 is a top view of a water tank assembly of a heating device according to an embodiment of the present disclosure.

FIG. 6 is a bottom view of a water tank assembly of a heating device according to an embodiment of the present disclosure.

FIG. 7 is a partial sectional view of a first side plate assembly of a water tank assembly of a heating device according to an embodiment of the present disclosure.

FIG. 8 is a partial enlarged view of FIG. 7.

FIG. 9 is a partial sectional view of another embodiment of a first side plate assembly of a water tank assembly of a heating device according to an embodiment of the present disclosure.

FIG. 10 is a schematic view of a first sub-fin of a water tank assembly of a heating device according to an embodiment of the present disclosure.

FIG. 11 is a schematic view of a second sub-fin of a water tank assembly of a heating device according to an embodiment of the present disclosure.

FIG. 12 is a schematic view of a smoke baffle of a water tank assembly of a heating device according to an embodiment of the present disclosure, in which a second through hole is formed on the smoke baffle.

FIG. 13 is a schematic structural view of an embodiment of a heat exchange assembly of the present disclosure.

FIG. 14 is an exploded view of FIG. 13.

FIG. 15 is a schematic structural view of an embodiment of a cooperation state between a heat exchange pipe and a water tank wall of the present disclosure.

FIG. 16 is a partial enlarged view of part A in FIG. 15.

FIG. 17 is a front view of a leak-proof plate and a water tank wall in FIG. 12.

FIG. 18 is a right view of the leak-proof plate and the water tank wall in FIG. 12.

FIG. 19 is a schematic structural view of an embodiment of a leak-proof plate of the present disclosure.

FIG. 20 is a schematic partial structural view of a mounting hole of a leak-proof plate in FIG. 19.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Embodiments of the present disclosure will be described in detail below with reference to examples thereof as illustrated in the accompanying drawings, throughout which same or similar elements, or elements having same or similar functions, are denoted by same or similar reference numerals. The embodiments described below with reference to the drawings are illustrative only, and are intended to explain, rather than limiting, the present disclosure.

A heating device 200 according to an embodiment of the present disclosure is described below with reference to FIG. 1 to FIG. 12. The heating device 200 includes a water tank assembly 100, and may be provided as a water heater or a wall-mounted oven.

As illustrated in FIG. 1 to FIG. 12, the water tank assembly 100 according to the embodiment of the present disclosure includes a tank body 10, a main heat exchange pipe assembly 20, a heat exchange fin assembly 40, and a condensation pipe assembly 30. The tank body 10 has a smoke outlet 12 and a smoke inlet 11. A burner may be provided for the heating device 200. High temperature smoke generated through combustion in the burner may flow into the tank body 10 from the smoke inlet 11. The high temperature smoke in the tank body 10 may flow out of the tank body 10 from the smoke outlet 12. The tank body 10 includes a first side plate assembly 17. The tank body 10 further includes a second side plate assembly 18. The second side plate assembly 18 and the first side plate assembly 17 are opposite to each other. Further, the second side plate assembly 18 and the first side plate assembly 17 are opposite to each other in a first direction of the water tank assembly 100. The first direction of the water tank assembly 100 may refer to a left-right direction in FIG. 2. Also, the second side plate assembly 18 and the first side plate assembly 17 are spaced apart from each other in the first direction of the water tank assembly 100. A plurality of first water boxes 131 are formed at the first side plate assembly 17. A plurality of second water boxes 141 are formed at the second side plate assembly 18.

A water outlet 133 and a water inlet 132 are formed on the first side plate assembly 17. The water inlet 132 is in communication with one of the plurality of first water boxes 131. The water outlet 133 is in communication with one of the plurality of first water boxes 131. Further, as illustrated in FIG. 2, in an up-down direction in FIG. 2, some of the plurality of first water boxes 131 are located at a same level, and some of the plurality of first water boxes 131 are located at different levels. The water outlet 133 is located at a higher level than the water inlet 132. That is, the water outlet 133 is disposed above the water inlet 132. As illustrated in FIG. 3, in an up-down direction in FIG. 3, some of the plurality of second water boxes 141 are located at a same level, and some of the plurality of second water boxes 141 are located at different levels.

Further, the second side plate assembly 18 may include a second side plate 14. The first side plate assembly 17 may include a first side plate 13. Both the second side plate 14 and the first side plate 13 may be formed as integrated pieces. The second side plate 14 is formed as an integrated piece. That is, both the first side plate 13 and the second side plate 14 are formed as the integrated pieces. With this arrangement, it is possible to facilitate manufacturing and production of the second side plate 14 and the first side plate 13, and improve manufacturing efficiency of the second side plate 14 and the first side plate 13. Thus, manufacturing efficiency of the water tank assembly 100 can be improved. In addition, the number of molds developed to manufacture the tank body 10 can be reduced, and manufacturing costs of the tank body 10 can be lowered. As a result, manufacturing cost of the water tank assembly 100 can be lowered.

Further, as shown in FIG. 2, the plurality of first water boxes 131 may be formed at the first side plate 13. As shown in FIG. 2, the plurality of second water box 141 may be formed at the second side plate 14. The water outlet 133 and the water inlet 132 are formed on the first side plate 13.

The condensation pipe assembly 30 is located at a side of the main heat exchange pipe assembly 20 facing towards the smoke outlet 12. It should also be understood that, in the up-down direction in FIG. 2, the main heat exchange pipe assembly 20 is disposed at an upper side of the condensation pipe assembly 30. The plurality of second water boxes 141 and the plurality of first water boxes 131 are in communication with each other via the condensation pipe assembly 30 and the main heat exchange pipe assembly 20. The main heat exchange pipe assembly 20 includes a plurality of first heat exchange pipes 21. The plurality of first heat exchange pipes 21 are located at a side of the main heat exchange pipe assembly 20 closest to the smoke inlet 11. That is, in the up-down direction in FIG. 2, the plurality of first heat exchange 21 are provided at an upper side of the main heat exchange pipe assembly 20. Each of the plurality of first water boxes 131 corresponding to the plurality of first heat exchange pipes 21 are in communication with at least three of the plurality of first heat exchange pipes 21. A first heat exchange pipe 21 with the highest water temperature among the plurality of first heat exchange pipes 21 has a circular cross section, and no disturbance member is disposed in the first heat exchange pipe 21 with the highest water temperature.

Through a server life testing and a fluid simulation, it is found that the plurality of first heat exchange pipes 21 have the highest water temperature and undergo the greatest impact of the high temperature smoke. If flowing in the first heat exchange pipe 21 with the highest water temperature among the plurality of first heat exchange pipes 21 at a relatively low flow speed with relatively high flow resistance, the water will be easily vaporized in the first heat exchange pipe 21 or scale will be formed in the first heat exchange pipe 21, which may affect use performance and a service life of the heating device 200. Therefore, by designing the first heat exchange pipe 21 with the highest water temperature among the plurality of first heat exchange pipes 21 to have the circular cross section and providing no disturbance member in the first heat exchange pipe 21 with the highest water temperature, the flow resistance of the water in the first heat exchange pipe 21 can be effectively reduced when the water flows in the first heat exchange pipe 21, which can avoid deposition of insoluble substances in the first heat exchange pipe 21 and allow the first heat exchange pipe 21 to be heated uniformly. As a result, it is possible to avoid vaporization of the water in the first heat exchange pipe 21, and alleviate the formation of the scale in the first heat exchange pipe 21, thereby avoiding blockage of the first heat exchange pipe 21. Therefore, it is possible to prevent a dry burn and a rupture from occurring to the heating device 200, thereby improving the use performance of the heating device 200 and prolonging the service life of the heating device 200. Moreover, the heat impact of the high temperature smoke on the first heat exchange pipe 21 can also be reduced.

In some embodiments of the present disclosure, as shown in FIG. 7, each of the plurality of first heat exchange pipes 21 has the circular cross section, no disturbance member is disposed in each of the plurality of first heat exchange pipe 21. By designing each of the plurality of first heat exchange pipes 21 to have the circular cross section and providing no disturbance member in each first heat exchange pipe 21, the flow resistance of the water in the first heat exchange pipes 21 can be effectively reduced when the water flows in the first heat exchange pipes 21, which can further avoid the deposition of the insoluble substances in the first heat exchange pipes 21 and allow the first heat exchange pipes 21 to be heated uniformly. As a result, it is possible to further avoid vaporization of the water in the first heat exchange pipes 21, and alleviate the formation of the scale in the first heat exchange pipes 21, thereby further avoiding the blockage of the first heat exchange pipes 21. Therefore, it is possible to further prevent the dry burn and the rupture from occurring to the heating device 200, thereby improving the use performance of the heating device 200 and prolonging the service life of the heating device 200. Moreover, the heat impact of the high temperature smoke on the main heat exchange assembly 20 can also be further reduced.

In some embodiments of the present disclosure, as shown in FIG. 7 and FIG. 9, the main heat exchange pipe assembly 20 may further include a plurality of second heat exchange pipes 31. The plurality of second heat exchange pipes 31 have elliptical cross section. If flowing in the second heat exchange pipes 31 at a relatively low flow speed with relatively high flow resistance, the water will be easily vaporized in the second heat exchange pipes 31 or scale will be formed in the second heat exchange pipes 31, which may affect the use performance and the service life of the heating device 200. Therefore, by designing the second heat exchange pipes 31 to have the elliptic cross section, the flow resistance of the water in the second heat exchange pipes 31 can be reduced when the water flows in the second heat exchange pipes 31, which can avoid deposition of the insoluble substances in the second heat exchange pipes 31. As a result, it is possible to avoid vaporization of the water in the second heat exchange pipes 31, and alleviate the formation of the scale in the second heat exchange pipes 31, thereby improving the use performance of the heating device 200 and prolonging the service life of the heating device 200. However, the present disclosure is not limited in this regard. The second heat exchange pipe 31 may have other irregularly-shaped cross sections, as long as the cross section of the second heat exchange pipes 31 can function as the elliptic cross section.

Further, at least some of the first heat exchange pipes 21 and/or at least some of the second heat exchange pipes 31 pass through the heat exchange fin assembly 40. That is, it is possible for at least some of the plurality of first heat exchange pipes 21 to pass through the heat exchange fin assembly 40, or it is possible for at least some of the plurality of second heat exchange pipes 31 to pass through the heat exchange fin assembly 40, or it is possible for both the first heat exchange pipes 21 and the second heat exchange pipes 31 to pass through the heat exchange fin assembly 40. The heat exchange fin assembly 40 may be disposed in the tank body 10. When the high temperature smoke generated through the combustion in the burner flows into the tank body 10 from the smoke inlet 11, heat from the high temperature smoke may be transferred to the first heat exchange pipes 21 and/or the second heat exchange pipes 31 via the heat exchange fin assembly 40. In this way, more heat can be transferred to cold water in the first heat exchange pipes 21 and/or the second heat exchange pipes 31. As a result, heat exchange efficiency can be improved. Thus, the cold water can be converted into hot water more quickly, which in turn improves heat exchange efficiency of the water tank assembly 100 and operation performance of the heating device 200.

In some embodiments of the present disclosure, as illustrated in FIG. 2 and FIG. 3, the heat exchange fin assembly 40 may include a plurality of first fins 41 arranged at intervals in a length direction of the first heat exchange pipe 21. The length direction of the first heat exchange pipe 21 refers to the left-right direction in FIG. 2. Each first heat exchange pipe 21 and each heat exchange 22 pass through the plurality of first fins 41. Further, each first fin 41 may have a first through hole 42, i.e., a through hole 42. The first through hole 42 penetrates the first fin 41 in a thickness direction of the first fin 41. The first heat exchange pipe 21 and the second heat pipe 31 pass through different first through holes 42 of the same first fin 41. In this way, the technical solution that the first heat exchange pipe 21 and the second heat pipe 31 pass through the first fin 41 can be realized to prevent separation of the first fin 41 from the first heat exchange pipe 21 and the second heat pipe 31. As a result, heat exchange between the first heat exchange pipe 21 and the first fin 41 and between the second heat pipe 31 and the first fin 41 can be ensured. In addition, by providing the plurality of first fins 41, heat exchange efficiency between the heat exchange fin assembly 40 and the first heat exchange pipe 21 and between the heat exchange fin assembly 40 and the second heat exchange pipe 31 can be improved.

In some embodiments of the present disclosure, as illustrated in FIG. 2, FIG. 3, FIG. 10, and FIG. 11, the first fin 41 include a first sub-fin 43 and a second sub-fin 44. The first sub-fin 43 may be sleeved over the first heat exchange pipe 21, and the second sub-fin 44 may also be sleeved over the first heat exchange pipe 21. Also, the second sub-fin 44 is disposed on a side wall of the tank body 10. For example, the second sub-fin 44 is disposed on an inner surface of a first heat insulation plate 50. In this way, it is possible to enlarge a heat exchange area of the heat exchange fin assembly 40.

In some embodiments of the present disclosure, as shown in FIG. 7 and FIG. 9, the condensation pipe assembly 30 may include a plurality of third heat exchange pipes 32. At least three third heat exchange pipes 32 are correspondingly provided for each first water box 131 in communication with the condensation pipe assembly 30. It also can be understood that, each first water box 131 in communication with the condensation pipe assembly 30 is communication with at least three of the plurality of third heat exchange pipes 32. In this way, the water in the first water boxes 131 can quickly flow into the plurality of third heat exchange pipes 32, and the water in the plurality of third heat exchange pipes 31 can also flow into the first water boxes 131 simultaneously. As a result, it is possible to shorten flow duration of the water in the condensation pipe assembly 30, thereby avoiding the water vaporization or the scale formation in the condensation pipe assembly 30. Also, water flow resistance in the third heat exchange pipes 32 can be reduced to avoid the blockage of the third heat exchange pipes 32. Therefore, it is possible to further prevent the dry burn and the rupture from occurring to the heating device 200, thereby prolonging the service life of each of the water tank assembly 100 and heating device 200.

In some embodiments of the present disclosure, as shown in FIG. 7 and FIG. 9, each third heat exchange pipe 32 is formed as a circular pipe. That is, a cross-sectional shape of each third heat exchange pipe 32 is circular. In addition, the plurality of third heat exchange pipes 32 corresponding to each first water box 131 is arranged in rows and columns. With this arrangement, the plurality of third heat exchange pipes 32 have a more compact structure, thereby reducing a volume of the water tank assembly 100, which in turn reduces a volume of the heating device 200.

It should be noted that the main heat exchange pipe assembly 20, the condensation pipe assembly 30, the first water boxes 131, and the second water boxes 141 of the present disclosure are formed as a parallel water passageway. Cold water can flow into the first water boxes 131 from the water inlet 132, flow upwards through the first water boxes 131 and the second water boxes 141 on both sides layer by layer after flowing through the third heat exchange pipe 32, and then flow through the first heat exchange pipes 21. Finally, hot water flows out of the water outlet 133.

After the high temperature smoke generated through the combustion in the burner flows into the tank body 10 from the smoke inlet 11, the high temperature smoke in the tank body 10 flows through the main heat exchange pipe assembly 20 and the first fins 41. Heat from the high temperature smoke is transferred to the cold water in the first heat exchange pipes 21. The cold water in the first heat exchange pipes 21 absorbs heat and is converted into hot water. Then, the smoke flowing through the main heat exchange pipe assembly 20 flows through the third heat exchange pipes 32 of the condensation pipe assembly 30. Cold water in the third heat exchange pipes 32 absorbs heat and is converted into hot water. The smoke can exchange heat with the condensation pipe assembly 30 to generate condensed water, and the condensed water can be discharged from the smoke outlet 12.

In some embodiments of the present disclosure, as shown in FIG. 7 and FIG. 9, the plurality of first heat exchange pipes 21 are arranged in one layer and pass through the first fin 41. The first fin 4 may be supported on the condensation pipe assembly 30. After the high temperature smoke generated through the combustion in the burner flows into the tank body 10 from the smoke inlet 11, the heat from the high temperature smoke may be transferred to the heat exchange fin assembly 40. Then, the heat exchange fin assembly 40 may transfer heat to the first heat exchange pipes 21 and the second heat exchange pipes 31. In this way, more heat can be transferred to the cold water in the first heat exchange pipes 21 and/or the second heat exchange pipes 31. As a result, heat exchange efficiency can be improved. Thus, the cold water can be converted into the hot water more quickly, which in turn improves heat exchange efficiency of the water tank assembly 100 and operation performance of the heating device 200.

In some embodiments of the present disclosure, the plurality of first heat exchange pipes 21 are arranged in layers. The plurality of first heat exchange pipes 21 in layers are arranged in a direction from the smoke inlet 11 to the smoke outlet 12. The direction from the smoke inlet 11 to the smoke outlet 12 refers to the up-down direction in FIG. 2. A first layer of heat exchange pipes is a layer of heat exchange pipes closest to the smoke inlet 11. Ends of each layer of heat exchange pipes 22 are communication with the corresponding first water boxes 131, and other ends of each layer of heat exchange pipes 22 are in communication with the corresponding second water boxes 141.

In some embodiments of the present disclosure, the water tank assembly 100 may be made of a stainless steel material. In this way, it is possible to effectively enhance corrosion resistance of the water tank assembly 100, thereby further prolonging the service life of the water tank assembly 100.

In some embodiments of the present disclosure, as illustrated in FIG. 2, the tank body 10 may further include a second heat insulation plate 60 and a first heat insulation plate 50. The second heat insulation plate 60 is opposite to the first heat insulation plate 50. The first heat insulation plate 50 is engaged with and connected to the first side plate assembly 17 and the second side plate assembly 18 respectively, and the second heat insulation plate 60 is engaged with and connected to the first side plate assembly 17 and the second side plate assembly 18 respectively. Further, the first heat insulation plate 50 is engaged with and connected to the second side plate 14 of the second side plate assembly 18 and the first side plate 13 of the first side plate assembly 17 respectively, and the second heat insulation plate 60 is engaged with and connected to the second side plate 14 and the first side plate 13 respectively. Further, as illustrated in FIG. 2, the first heat insulation plate 50 has a left end connected to the first side plate 13 and a right end connected to the second side plate 14. The second heat insulation plate 60 has a left end connected to the first side plate 13 and a right end connected to the second side plate 14. The second heat insulation plate 60 and the first heat insulation plate 50 can provide heat insulation. When the high temperature smoke generated through the combustion in the burner flows into the tank body 10 from the smoke inlet 11, it is possible to prevent the heat from being transferred to an outside of the tank body 10 through the second heat insulation plate 60 and the first heat insulation plate 50. Thus, dissipation of the heat from the second heat insulation plate 60 and the first heat insulation plate 50 can be avoid, which can ensure the heat exchange efficiency of the water tank assembly 100. Therefore, heating efficiency of the heating device 200 can be ensured.

Further, each of the second heat insulation plate 60 and the first heat insulation plate 50 may be formed as an integrated piece. The integrated piece has high structural strength, and thus structural strength of the second heat insulation plate 60 and the first heat insulation plate 50 can be enhanced. As a result, it is possible to avoid a deformation of the tank body 10. In addition, manufacturing and production of the second heat insulation plate 60 and the first heat insulation plate 50 can be facilitated to improve the manufacturing efficiency of the second heat insulation plate 60 and the first heat insulation plate 50, which can further improve the manufacturing efficiency of the water tank assembly 100. Moreover, the number of molds developed to manufacture the tank body 10 can be reduced, which further lowers manufacturing cost of the tank body 10. Therefore, the manufacturing cost of the water tank assembly 100 can be lowered.

In some embodiments of the present disclosure, as illustrated in FIG. 6, the tank body 10 may further include a smoke baffle 70. The smoke baffle 70 is located at a side of the condensation pipe assembly 30 away from the main heat exchange pipe assembly 20. In the up-down direction in FIG. 2, the condensation pipe assembly 30 is disposed between the smoke baffle 70 and the main heat exchange pipe assembly 20. The smoke baffle 70 is disposed below the condensation pipe assembly 30. The smoke baffle 70 may be formed as an integrated piece. That is, the smoke baffle 70 is formed as an integrated piece. The smoke baffle 70 is engaged with and connected to the second side plate 14, the first side plate 13, the second heat insulation plate 60, and the first heat insulation plate 50. The smoke outlet 12 may be formed on the smoke baffle 70. As illustrated in FIG. 6, the smoke baffle 70 is engaged with and connected to a lower end of each of the second side plate 14, the first side plate 13, the second heat insulation plate 60, and the first heat insulation plate 50. After the high temperature smoke generated through the combustion in the burner flows into the tank body 10 from the smoke inlet 11, the smoke baffle 70 can block the smoke when flowing to the smoke baffle 70, which can extend a duration for which the smoke flows out of the smoke outlet 12 to enable the smoke to stay longer in the tank body 10. In this way, a heat exchange duration of the high temperature smoke with the first heat exchange pipes 21, the second heat exchange pipes 31, the third heat exchange pipes 32, and the heat exchange fin assembly 40 can be prolonged to allow the cold water to be heated through more heat, which reduces heat loss and improves the heating efficiency of the heating device 200.

In some embodiments of the present disclosure, as illustrated in FIG. 6, the smoke baffle 70 may include a plurality of guide plates 71 facing away from the smoke inlet 11. The smoke outlet 12 includes a first channel 121. Ends of the plurality of guide plates 71 facing away from the smoke inlet 11 are arranged at intervals to form the first channel 121. The smoke in the tank body 10 can flow out of the tank body 10 through the first channel 121. In this way, the flow area of the smoke can be ensured to ensure the smoke flows out of the tank body 10 from the smoke outlet 12 smoothly, thereby avoiding expansion damage to the tank body 10 due to an excessive pressure in the tank body 10. As a result, explosion of the tank body 10 can be avoided, which can improve the use safety of the heating device 200.

In some embodiments of the present disclosure, as shown in FIG. 6, the smoke outlet 12 may further include a second channel 122. A plurality of second channels 122 may be formed on each guide plate 71. The second channel 122 penetrates the guide plate 71 in a thickness direction of the guide plate 71. The smoke in the tank body 10 can flow out of the tank body 10 through the second channel 122. In this way, the flow area of the smoke can be enlarged to ensure the smoke in the tank body 10 to flow out of the tank body 10 through both the first channel 121 and the second channel 122. Further, it is also possible to further ensure the smoke flows out of the tank body 10 from the smoke outlet 12 smoothly, thereby further avoiding the expansion damage to the tank body 10 due to the excessive pressure in the tank body 10. As a result, the explosion of the tank body 10 can be further avoided, which can further improve the use safety of the heating device 200.

In some embodiments of the present disclosure, as shown in FIG. 12, the smoke outlet 12 may include a plurality of second through holes. The plurality of second through holes may each be formed into an elongated structure and arranged at intervals evenly. In this way, the flow area of the smoke can be ensured to ensure the smoke to flow out of the tank body 10 from the smoke outlet 12 smoothly, thereby avoiding the expansion damage to the tank body 10 due to the excessive pressure in the tank body 10. The explosion of the tank body 10 can therefore be avoided, which can improve the use safety of the heating device 200. However, the present disclosure is not limited in this regard. The smoke outlet 12 may include a plurality of through holes of a round shape, an elliptic shape, a trapezoidal shape, or other shapes, as long as the shape of the through hole can function as the elongated shape.

In some embodiments of the present disclosure, the plurality of first water boxes 131 are opened at a same side, and the plurality of second water boxes 141 are opened at a same side. Further, each of the plurality of first water boxes 131 has an open side facing towards an inside of the tank body 10, and each of the plurality of second water boxes 141 has an open side facing towards the inside of the tank body 10. As illustrated in FIG. 2, the plurality of first water boxes 131 are opened at a right side, and the plurality of second water boxes 141 are opened at a left side. The second side plate assembly 18 may further include a second bottom plate 16. The first side plate assembly 17 may further include a first bottom plate 15. Each of the first bottom plate 15 and the second bottom plate 16 may be formed as an integrated piece. The first bottom plate 15 can be engaged with the first side plate 13 to cover the open side of each of the plurality of first water boxes 131. The second bottom plate 16 can be engaged with the second side plate 14 to cover the open side of each of the plurality of second water boxes 141.

Further, a plurality of first bottom plates 15 may be provided and arranged in one-to-one correspondence to the plurality of first water boxes 131. A plurality of second bottom plates 16 may be provided and arranged in one-to-one correspondence to the plurality of water boxes 141. A mounting hole is formed on each of the plurality of first bottom plates 15 and on each of the plurality of second bottom plates 16. The mounting hole of the first bottom plate 15 penetrates the first bottom plate 15, and the mounting hole of the second bottom plate 16 penetrates the second bottom plates 16. The first heat exchange pipes 21 and the second heat exchange pipes 31 each are mounted in the corresponding mounting holes. In this way, it can be ensured that water in the first water boxes 131 flows into the first heat exchange pipes 21 and the second heat exchange pipes 31. Also, it is possible to ensure that water in the second water boxes 141 flows into the first heat exchange pipes 21 and the second heat exchange pipes 31. Thus, it is possible to prevent the water from flowing out of the open sides of the first water boxes 131 and the open sides of the second water boxes 141, avoiding water leakage of the water tank assembly 100.

The plurality of first bottom plates 15 may be formed into an integral plate-like structure. One first bottom plate 15 can cover the open sides of the plurality of first water boxes 131 simultaneously. The plurality of second bottom plates 16 may be formed into an integral plate-like structure. One second bottom plate 16 can cover the open sides of the plurality of second water boxes 141 simultaneously.

In some embodiments of the present disclosure, as shown in FIG. 9, some of the plurality of first heat exchange pipes 21 each have an elliptic cross section, and the rest of the plurality of first heat exchange pipes 21 each has a circular cross section. If flowing in the first heat exchange pipes 21 at a relatively low flow speed with relatively high flow resistance, the water will be easily vaporized in the first heat exchange pipes 21 or scale will be formed in the first heat exchange pipes 21, which may affect the use performance and the service life of the heating device 200. Therefore, by designing some of the plurality of first heat exchange pipes 21 to have the circular cross section, the flow resistance of the water in the first heat exchange pipes 21 can be reduced when the water flows in the first heat exchange pipes 21, which can avoid deposition of the insoluble substances in the first heat exchange pipes 21. As a result, it is possible to avoid vaporization of the water in the first heat exchange pipes 21, and alleviate the formation of the scale in the first heat exchange pipes 21, thereby further improving the use performance of the heating device 200 and prolonging the service life of the heating device 200.

In some embodiments of the present disclosure, a disturbance member may be disposed on the heat exchange fin assembly 40. The disturbance member is configured to divert the smoke in the tank body 10. After the high temperature smoke generated through the combustion in the burner flows into the tank body 10 from the smoke inlet 11, the smoke in the tank body 10 can be diverted by the disturbance member to prolong movement duration of the smoke in the tank body 10. Thus, sufficient heat exchange can be performed between the smoke and the heat exchange fin assembly 40, the first heat exchange pipes 21, and the second heat exchange pipes 31, which in turn can enhance the heating efficiency of the heating device 200 and improve the operation performance of the heating device 200.

In some embodiments of the present disclosure, the disturbance member may include a flange disposed on the heat exchange fin assembly 40. In this way, a structure of the disturbance member can be simplified to facilitate manufacturing and production of the disturbance member, thereby improving manufacturing efficiency of the disturbance member. Further, the disturbance member and the heat exchange fin assembly 40 may be integrally formed. That is, the disturbance member and the heat exchange fin assembly 40 are formed as an integrated piece. In this way, the number of parts for forming the water tank assembly 100 can be reduced. Thus, assembly efficiency of the water tank assembly 100 can be improved, thereby improving the manufacturing efficiency of the water tank assembly 100.

A heating device 200 according to an embodiment of the present disclosure is shown in FIGS. 1 to 12. The heating device 200 may be a water heater or a wall-mounted oven. The heating device 200 includes the water tank assembly 100 as described in the above embodiments. The water tank assembly 100 is provided on the heating device 200. By designing the first heat exchange pipe 21 with the highest water temperature among the plurality of first heat exchange pipes 21 to have the circular cross section and providing no disturbance member in the first heat exchange pipe 21 with the highest water temperature, the flow resistance of the water in the first heat exchange pipe 21 can be reduced. As a result, the water flow rate or the water flow speed in the first heat exchange pipe 21 is uniform. Thus, vaporization of the water in the first heat exchange pipe 21 and the formation of the scale in the first heat exchange pipe 21 can be alleviated. Therefore, it is possible to prolong the service lives of the water tank assembly 100 and the heating device 200.

Other components such as a smoke valve 201 and a controller 202 and other operations of the heating device 200 according to the embodiments of the present disclosure are known to those of ordinary skill in the art, and thus the description thereof in detail will be omitted here.

Embodiments of the present disclosure provide a tank assembly 100 applicable in a device having a heat exchange function, such as an indoor water heater or an outdoor water heater. Taking the water heater as an example, the tank assembly 100 has a heat exchange chamber 101 formed in an interior of the tank assembly 100, and high temperature smoke can flow in the heat exchange chamber 101. The tank assembly 100 is configured to receive external water with a normal temperature, and the water with the normal temperature can exchange heat with the high temperature smoke in the heat exchange chamber 101 when flowing in a heat exchange pipe 160 to generate and output hot water. As a result, the heat exchange can be realized. FIG. 13 to FIG. 20 are the accompanying views corresponding to embodiments of the present disclosure.

Referring to FIG. 13 and FIG. 14, in one embodiment, the tank assembly 100 includes a plurality of side plate assemblies 150, the heat exchange pipe 160, and a leak-proof plate 170. The heat exchange chamber 101 is formed by enclosing the plurality of side plate assemblies 150. The heat exchange pipe 160 is disposed in the heat exchange chamber 101, and has an inlet end and an outlet end. The leak-proof plate 170 is disposed in the heat exchange chamber 101 and connected to the side plate assembly 150. A mounting hole 102 is formed on the leak-proof plate 170. The inlet end of the heat exchange pipe 160 passes through the mounting hole 102 and penetrates the respective side plate assemblies 150 sequentially; and/or the outlet end of the heat exchange pipe 160 passes through the mounting hole 102 and penetrates the respective side plate assemblies 150 sequentially.

For example, the plurality of side plate assemblies may be the first side plate assembly 17 and the second side plate assembly 18 of the tank assembly 100 described above, the first side plate assembly 17 and the second side plate assembly 18 form the heat exchange chamber 101. The heat exchange pipe 160 may be the first heat exchange pipe 21, the second heat exchange pipe 31, and the third heat exchange pipe 32 in the embodiments as described above.

The heat exchange chamber 101 is configured to deliver high temperature smoke. The leak-proof plate 170 is mounted and fixed on the side plate assembly 150. The heat exchange pipe 160 is mounted in the heat exchange chamber 101 to heat exchange with the high temperature smoke. The inlet end and outlet end of the heat exchange pipe 160 penetrate the respective side plate assemblies 150 respectively to receive cold water and output hot water.

The leak-proof plate 170 is provided on the side plate assembly 150 and is fixedly connected to the side plate assembly 150. Since a position and a shape of the heat exchange pipe 160 may be determined based on a specific shape of the water tank assembly 100, the leak-proof plate 170 may be provided to correspond to the inlet end of the heat exchange pipe 160 or to the outlet end of the heat exchange pipe 160. A description will be set forth taking an embodiment as an example in which the heat exchange pipe 160 is a straight pipe, and the leak-proof plate 170 is provided at each of the inlet end and the outlet end of the heat exchange pipe 160. In addition, the manner in which the inlet end of the heat exchange pipe 160 is engaged with the respective proof plate 170 and the respective side plate assembly 150 is same as the manner in which the out end of the heat exchange pipe 160 is engaged with the respective proof plate 170 and the respective side plate assembly 150, therefor only the inlet end of the heat exchange is described below as an example. The leak-proof plate 170 is formed with the mounting hole 102, and the inlet end of the heat exchange pipe 160 passes through the mounting holes 102 and penetrates the side plate assembly 150 to be connected to a tank external to the tank assembly 100 for continuous input of the normal temperature water. The outlet end of the heat exchange pipe 160 may be connected to a nozzle pipe of the water heater, for example, to realize hot water output.

When the heat exchange pipe 160 passes through the mounting hole 102, the mounting hole 102 can support the heat exchange pipe 160 to provide support and reinforcement to a part of the heat exchange pipe 160 close to the side plate assembly 150, thereby enhancing a strength of the heat exchange pipe 160 and avoiding a deformation of the heat exchange pipe 160 due to uneven heat exposure.

The heat exchange pipe 160 penetrates the respective side plate assemblies 150. The leak-proof plate 170 covers on a connection between the heat exchange pipe 160 and the side plate assembly 150. As a result, heat in the heat exchange chamber would not directly be transferred to a portion of the heat exchange pipe 160, at which the heat exchange pipe 160 penetrates the side plate assembly 150, which in turn reduces a high temperature impact of the high temperature smoke on the portion of the heat exchange pipe 160, at which the heat exchange pipe 160 penetrates the side plate assembly 150. Thus, it is possible to prevent defects such as cracks from being generated at the portion of the heat exchange pipe 160, at which the heat exchange pipe 160 penetrates the side plate assembly 150, due to the high temperature smoke impact.

In an embodiment, the tank assembly 100 further includes a reservoir 180 disposed on an outer side of the side plate assembly 150 of the tank assembly 100. The leak-proof plate is located on an inner side the side plate assembly 150. The heat exchange pipe 160 of the tank assembly 100 is in communication with the reservoir 180. The reservoir 180 may be attached to the side plate assembly 150 to be connected to the heat exchange pipe 160. The reservoir 180 is configured to be connected to an external water supply line for continuous water supply.

The reservoir 180 may be the first water box 131 or the second water box 132 as described in any one of the above embodiments, and the water in the first water box 131 or the second water box 132 may flow into the heat exchange pipe 160.

In an embodiment, the leak-proof plate 170 is attached to the side plate assembly 150. When the heat exchange pipe 160 passes through the mounting hole 102, the leak-proof plate 170 may be directly supported on an outer wall of the heat exchange pipe 160, to cover the connection between the heat exchange pipe 160 and the side plate assembly 150 by the leak-proof plate 170, which can block a high temperature gas flow in the heat exchange chamber 101 from directly impacting on the connection between the heat exchange pipe 160 and the side plate assembly 150. Thus, it is possible to avoid a deformation of the connection between the heat exchange pipe 160 and the side plate assembly 150.

In another embodiment, a gap is formed between the leak-proof plate 170 and the side plate assembly 150. When the heat exchange pipe 160 passes through the mounting hole 102, the inner wall of the mounting hole 102 can directly support a surface of the heat exchange pipe 160, to prevent the deformation of the connection portion of the heat exchange pipe 160 close to the side plate assembly 150. The leak-proof plate can also block a direct impact of the high temperature smoke on the connection between the heat exchange pipe and the side plate assembly, thereby improving the strength of the part of the heat exchange pipe 160 close to the side plate assembly 150.

Referring to FIG. 15 and FIG. 16, in an example, the outer wall of the heat exchange pipe 160 is attached to the inner wall of the mounting hole 102 tightly, and a shape of the inner wall of the mounting hole 102 is coincide with a shape of the outer wall of the heat exchange pipe 160. Therefore, the mounting hole 102 can support the heat exchange pipe 160 along an outer periphery of the heat exchange pipe 160, to prevent the heat exchange pipe 160 from being deformed.

Referring to FIG. 16, in another example, a protective gap 103 is formed between the leak-proof plate 170 and the side plate assembly 150. There is a gap between the leak-proof plate 170 and the side plate assembly 150 to form the protective gap 103. The inner wall of the mounting hole 102 is sealingly connected to the outer wall of the heat exchange pipe 160. When the connection between the heat exchange pipe 160 and the side plate assembly 150 is damaged due to uneven heating, the liquid leaking from the heat exchange pipe 160 can enter the protective gap 103, to prevent the water from flowing into the heat exchange chamber 101.

The connection between the leak-proof plate 170 and the side panel assembly 150 may be determined according to the shape of the leak-proof plate 170. For example, taking a leak-proof plate 170 of a rectangular structure as shown in FIG. 14 as an example, a rectangular edge of the leak-proof plate 170 may be sealingly connected to the side plate assembly 150 to form a generally rectangular protective gap 103 between the leak-proof plate 170 and the side plate assembly 150. The mounting hole 102 is attached to the heat exchange pipe 160 tightly to form a seal to prevent liquid from overflowing from the mounting holes 102.

When the tank assembly 100 is provided with a plurality of heat exchange pipes 160, the inlet end of each heat exchange pipe 160 may correspond to one leak-proof plate 170, each leak-proof plate 170 is formed with the mounting hole 102 to allow the heat exchange pipe 160 to pass therethrough. In addition, the edge of each the leak-proof plate 170 is sealingly connected to the side plate assembly 150 to form one protective gap 103 at the connection between each heat exchange pipe 160 and the plate assembly 150.

Referring to FIG. 17, in one embodiment, a plurality of heat exchange pipes 106 are provided, the leak-proof plate 170 is formed with a plurality of mounting holes 102, and the plurality of mounting holes 102 is arranged in one-to-one correspondence to the plurality of heat exchange pipes 160. The plurality of heat exchange pipes 160 pass through the corresponding mounting holes 102 respectively, and is connected to the side plate assembly 150.

Referring to FIG. 17 and FIG. 18, when the protective gap 103 is formed between the leak-proof plate 170 and the side plate assembly 150, the edge of the leak-proof plate 170 is sealingly connected to the side plate assembly 150. The plurality of heat exchange pipes 160 correspond to the respective mounting holes 102, and are attached to the inner wall of the mounting hole 102 tightly to form a sealing connection. When a leak occurs at the connection between one or more of the heat exchange pipes 160 and the side panel assembly 150, the leaked liquid can enter the protective gap 103. As a result, it is possible to prevent the liquid from entering the heat exchange chamber 101, which may cause the water heater to shut down. When the protection gap 103 is formed between the leak-proof plate 170 and the side panel assembly 150, the connection between the heat exchange pipe 160 and the side panel assembly 150 is blocked in the protection gap 103, which can provided a heat insulation effect on the connection between the heat exchange pipe 160 and the side panel assembly 150, to avoid further expansion of a crack gap at the connection between the heat exchange pipe 160 and the side panel assembly 150.

When the leak-proof plate 170 is attached to the surface of the plate assembly 150, the plurality of heat exchange pipes 160 pass through the mounting holes 102 of the leak-proof plate 170 respectively, to enable the leak-proof plate 170 to support the plurality of heat exchange pipes 160 simultaneously. The plurality of heat exchange pipes 160 can interact with each other via the leak-proof plate 170, to reduce the deformation of the plurality of heat exchange pipes 160.

Referring to FIG. 16, FIG. 19, and FIG. 20, in one embodiment, the leak-proof plate 170 includes a plate body 171 and a barrier 172. A gap is formed between the plate body 171 and the side plate assembly 150, and the mounting hole 102 is formed on the plate body 171. The barrier 172 is disposed on outer peripheral edge of the plate body 171 and sealingly connection to the side plate assembly 150. The protective gap 103 is formed by enclosing the plate body 171, the barrier 172, and the side panel assembly 150. The plate body 171 is opposite to the side panel assembly 150 to form the protective gap 103. The barrier 172 is provided on the edge of the plate body 171 and protrudes towards the side panel assembly 150 to be connected to the side panel assembly 150.

An edge of the plate body 171 may be bent towards the side plate assembly 150 to form the barrier 172. The barrier 172 can support the plate body 171 on the inner side of the side plate assembly 150, and seal the edge of the gap between the side plate assembly 150 and the plate body 171 to form the protective gap 103. When the connection between the heat exchange pipe 160 and the plate assembly 150 is ruptured, the liquid leaking from the heat exchange pipe 160 enters the protective gap 103. As a result, it is possible to prevent the liquid from entering the heat exchange chamber 101. The plate body 171 may have a flat plate structure, and the mounting hole 102 penetrates the plate body 171 and is sealingly connected to the heat exchange pipe 160. When the high temperature smoke enters the heat exchange chamber 101, the barrier 172 can block the high temperature smoke from impacting on the connection between the heat exchange pipe 160 and the side plate assembly 150. Thus, the high temperature smoke can flow towards a side of the plate body 171 away from a liquid storage chamber along the barrier 172 without directly impacting on the inlet end or the outlet end of the heat exchange pipe 160.

Referring to FIG. 20, in one embodiment, a first sealing ring edge 173 is disposed on a side of the barrier 172 away from the plate body 171, and is sealingly connected to the side plate assembly 150. The first sealing ring edge 173 is configured to attached to the side panel assembly 150 and is sealingly connected to the side panel assembly 150, to increase the contact area between the leak-proof plate 170 and the side panel assembly 150, thereby enhance the sealing effect. When manufacturing the leak-proof plate 170, an end of the barrier 172 away from the plate body 171 may be bent to form the first sealing ring edge 173. The first sealing ring edge 173 may be welded to the side plate assembly 150 or secured to the side plate assembly 150 by means of other connection manner.

Referring to FIG. 20, in one embodiment, the leak-proof plate 170 further includes a second sealing ring edge 174. One end of second sealing ring edge 174 is connected to the inner wall of the mounting hole 102, and the other end of second sealing ring edge 174 protrudes in the axial direction of the mounting hole 102. The second sealing ring edge 174 is disposed around the outer wall of the heat exchanger pipe 160. The second sealing ring edge 174 is configured to increase the contact area between the mounting hole 102 and the heat exchanger pipe 160 to seal between the mounting hole 102 and the heat exchange pipe 160.

The inner wall of the mounting hole 102 can be axially bent to form the second sealing ring edge 174, to enable the second sealing ring edge 174 to be attached to on the outer wall of the heat exchange pipe 160 to form a tight attachment with the outer wall of the heat exchanger pipe 160. The second sealing ring edge 174 is further configured to support the heat exchange pipe 160 to enhance deformation resistance of the heat exchanger pipe 160. The second sealing ring edge 174 may protrude away from the protective gap 103, or may protrude from a side of the leak-proof plate 170 facing toward the side plate assembly 150, to support and strengthen the connection between the heat exchange pipe 160 and the side plate assembly 150, thereby avoid the rupture of the heat exchanger pipe 160.

In some embodiment, a gap is formed between an end of the second sealing ring edge 174 away from the leak-proof plate 170 and the side plate assembly 150. The second sealing ring edge 174 does not shield the connection between the heat exchange pipe 160 and the side plate assembly 150. When the connection between the heat exchange pipe 160 and the side plate assembly 150, the liquid inside the heat exchange pipe 160 can enter the liquid storage chamber. As a result, it is possible to prevent the liquid from flowing out of the leak-proof plate 170 through the second sealing ring edge 174.

Embodiments of the present disclosure also provide a water heater.

The water heater includes the tank assembly 100 as described in any of the above embodiments, and a burner connected to the heat exchange chamber 101 of the tank assembly 100 and configured to generate high temperature smoke. The water heater is a fully premixed gas water heater.

The burner is configured to burn gas to form the high temperature smoke. The high temperature smoke enters the heat exchange chamber 101 to exchange heat with the heat exchange pipe 160, thereby heat the liquid in the heat exchange pipe 160. In the fully premixed gas water heater, the gas and air are completely mixed before combustion occurs in the water heater, and thus no secondary air is involved in the combustion.

Referring to FIG. 13, a plurality of heat exchange pipes 160 may be provided and connected to the side plate assembly 150 respectively. The heat exchange pipes 160 may be arranged in parallel within the heat exchange chamber 101, or may be arranged in a serpentine coiled configuration, or arranged in other configurations.

Referring to FIG. 13, the tank assembly 100 has a first end and a second end opposite to the first end. The burner is disposed at the first end of the water tank assembly. A radial cross section of the heat exchange pipe 160 of the water tank assembly 100 is of an elliptical shape, and a long axis of the elliptical shape extends in a direction from the first end to the second end of the water tank assembly 100. The high temperature smoke generated by the burner flows from the first end of the water tank assembly 100 towards the second end of the heat exchanger.

Taking the structure as shown in FIG. 13 as an example, the first end and the second end are an upper and a lower end of the water tank assembly 100, respectively. During the flow of the high temperature smoke from top to bottom, the high temperature smoke can exchange heat with the heat exchange pipe 160. By designing the heat exchanger pipe 160 into the elliptical pipe, the heat exchange pipe 160 has a fin-like structure. As a result, it is possible to extend the duration of the heat exchange between the high temperature smoke and the heat exchange pipe 160. When a plurality of the heat exchange pipes 160 are arranged, several sets of the heat exchange pipes 160 may be provided within the tank assembly 100 to save an interior space in the heat exchange chamber 101.

During the flowing of the gas, the heat exchange pipe 160 has a relatively high temperature at the side close to the first end of the tank assembly 100 and a relatively low temperature at the side close to the second end of the tank assembly 100. As a result, the temperature of the heat exchanger pipe 160 is uneven in the direction from the first end to the second end. By designing the heat exchanger pipe 160 into the elliptical shape, it is possible to alleviate the deformation of the connection between the heat exchange pipe 160 and the side plate assembly 150.

The principle of the present disclosure will be described in detail below in conjunction with the accompanying drawings. In the present disclosure, the heat exchange chamber 101 is formed by enclosing the plurality of side plate assemblies 150 enclosed, the burner is provided at the upper side of the heat exchange chamber 101, and the high temperature smoke generated through the combustion in the burner is delivered from top to bottom. The heat exchanger pipe 160 extends in the left-right direction of the heat exchange chamber 101. The inlet end and the outlet end of the heat exchange pipe 160 penetrate the side plate assembly 150 respectively, and fixedly connected to the side plate assembly 150. The leak-proof plate 170 is provided on the side plate assembly 150, and the protective gap 103 is formed between the leak-proof plate 170 and the side plate assembly 150. The heat exchange pipe 160 passes through the leak-proof plate 170, and the mounting holes 102 is formed on the leak-proof plate 170 to allow the heat exchange pipe 160 to pass therethrough. The mounting holes 102 is sealingly connected to the heat exchange pipe 160. The protective gap 103 forms a closed cavity. When cracks is generated on the connection between the heat exchange pipe 160 and the side plate assembly 150, the water can enter the protective gap 103. Therefore, it is possible to prevent the water from entering the heat exchange chamber 101 when water leakage occurs at the connection between the heat exchanger pipe 160 and the plate assembly 150.

In the description of the present disclosure, it should be understood that the orientation or position relationship indicated by the terms “center,” “longitudinal,” “transverse,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” “circumferential,” etc., is based on the orientation or position relationship shown in the drawings, and is merely for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the associated apparatus or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present disclosure.

In addition, the terms “first” and “second” are only used to describe the purpose and cannot be understood as indicating or implying relative importance or implying the quantity of technical features indicated. Therefore, features limited to “first” and “second” can explicitly or implicitly include one or more of these features. In the description of the present disclosure, “multiple” means two or more, unless otherwise specified.

In the present disclosure, unless otherwise specified and limited, the terms “installation,” “connection,” “connection,” “fixation” and other terms should be broadly understood, for example, they can be fixed connections, detachable connections, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, which can be the internal connection between two components or the interaction relationship between two components. For ordinary technical personnel in this field, the specific meanings of the above terms in the present disclosure can be understood based on specific circumstances.

In the present disclosure, unless otherwise specified and limited, the first feature may be in direct contact with the second feature “above” or “below,” or the first and second features may be in indirect contact through intermediate media. Moreover, the first feature being “above,” “above,” and “above” the second feature may indicate that the first feature is directly or diagonally above the second feature, or simply indicate that the first feature is located at a higher level than the second feature. The first feature “below,” “below,” and “below” of the second feature may indicate that the first feature is directly or diagonally below the second feature, or simply indicate that the first feature is located at a lower level than the second feature.

In the description of this specification, the reference terms “one embodiment,” “some embodiments,” “examples,” “specific examples,” or “some examples” refer to the specific features, structures, materials, or features described in conjunction with the embodiment or example being included in at least one embodiment or example of the present disclosure. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or features described can be combined in an appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of different embodiments or examples, without mutual contradiction.

Although embodiments of the present disclosure have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations to the present disclosure. Ordinary technical personnel in the art may make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure.

Number	Date	Country	Kind
202120676274.8	Apr 2021	CN	national
202110969662.X	Aug 2021	CN	national

WATER TANK ASSEMBLY OF HEATING DEVICE, AND HEATING DEVICE

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CPC

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