Patent Application
20240361014
The present invention relates to a heat pump air conditioner. More specifically, the present invention relates to a heat pump air conditioner with dehumidifying function.
On the basis of an ordinary air conditioner, when a four-way reversing valve is introduced and the operation of the valve is changed, the evaporator and condenser of the original air conditioner will be changed to the function of each other, so that the function of cooling indoor air will be changed to the function of heating indoor air. Usually, this kind of air conditioner will be called heat pump type air conditioner, in which heat can be extracted from the outdoor air with lower temperature to heat indoor air in winter and heat can removed from the indoor air and transmitted to the outdoor air in summer.
Because of energy saving, the heat pump air conditioner has received more and more attention.
Chinese Patent 200910301711.1 disclosed an air conditioner for continuous heating and dehumidifying in constant temperature which comprised circulating loops formed by compressors, electromagnetic four-way valves, evaporators, throttle devices and condensers, in which the compressors, the electromagnetic four-way valves, the evaporators, the throttle devices and the condensers were respectively provided with at least two sets and were used to form at least two independent circulating loops. By providing the at least two independent circulation loops, a part of the circulating loops could be used as heating operation in the process of defrosting and dehumidifying while the other part of the circulation loops could be used as refrigerating operation during the process of defrosting and dehumidifying to provide indoor heat continuously, to meet the comfort requirements when defrosting and dehumidifying, and thus to prevent indoor temperature fluctuations effectively.
Chinese Patent 201010149776.1 disclosed a heat pump air-conditioning water heater which comprised a compressor, a four-way reversing valve, an outdoor heat exchanger, an indoor heat exchanger, a first hot water heat exchanger and a hot water tank. The D end of the four-way reversing valve was connected with the compressor, in which the C end of the four-way reversing valve, the first hot water heat exchanger, a first one-way valve, a first solenoid valve, a first expansion valve, the indoor heat exchanger and the intake end of the compressor were used to form a hot water-cooling loop, and the first hot water heat exchanger was connected with the hot water tank through a first water pump to form a water circulation loop. The C end of the four-way reversing valve, the first hot water heat exchanger, the first one-way valve, a second solenoid valve, a second expansion valve, the outdoor heat exchanger, the E-S end of the four-way reversing valve and the intake end of the compressor were used to form a hot water circulation loop in which the first hot water heat exchanger was connected with the hot water tank through the first water pump to form a water circulation loop. The E end of the four-way reversing valve, the outdoor heat exchanger, a second one-way valve, the second solenoid valve, the first solenoid valve, the first expansion valve, the indoor heat exchanger and the compressor were used to constitute the refrigerating circulation loop. It could also comprise a high temperature water heat exchanger and a second water pump, in which the high temperature water heat exchanger was connected between the compressor and the D end of the four-way reversing valve and there was a second water pump on the pipeline between the high temperature water heat exchanger and the hot water tank.
Chinese Patent 201410058935.5 disclosed a ground source heat pump air conditioner system based on the independent control of temperature and humidity, which comprised a heat pump host (1). A temperature subsystem (4) was connected to the heat pump host (1) and a humidity subsystem (5) was connected to the heat subsystem (4). A cooling water circulation heat transfer subsystem (2) and a freezing water circulation heat transfer subsystem (3) were connected to the heat pump host (1). The temperature subsystem (4) was connected to the freezing water circulation heat transfer subsystem (3). The cooling water circulation heat transfer subsystem (2) was connected to the freezing water circulation heat transfer subsystem (3) each other and a heat transfer mechanism (6) was provided between the cooling water circulation heat transfer subsystem (2) and the freezing water circulation heat transfer subsystem (3).
Chinese utility model 201520085369.7 disclosed a water source heat pump air conditioner system which comprised a source water intake subsystem, a water source heat pump unit, a heat exchanger, a fresh air unit and an air conditioning unit. The source water outlet pipe of the source water intake subsystem could be selected to be connected to the heat pump source water conveying pipe or the water inlet of the first heat exchanging end of the heat exchanger via the selection structure of a first valve, in which the water outlet of the first heat exchanging end of the heat exchanger was connected to the heat pump source water conveying pipe. The outlet pipe of the heat exchanging end of the air conditioning unit was connected to the air conditioning return water pipe through a first circulating water pump, which was further connected to the water inlet of the second heat exchanging end of the heat exchanger via the first valve through the air conditioning return water pipe. The water outlet of the second heat exchanging end of the heat exchanger was connected to the air conditioning supply water pipe via the second valve, which was connected to the heat exchanging end of the air conditioning unit through the air conditioning supply water pipe. The water outlet pipe of the fresh air unit was connected to the return water pipe of the heat pump unit through the second circulating water pump, in which the return water pipe of the heat pump unit was also connected to the air conditioning return water pipe through an air conditioning return water switch valve. The inlet pipe of the fresh air unit was connected to the supply water pipe of the heat pump unit, while the supply water pipe of the heat pump unit was also in communication with the air conditioning supply water pipe through an air conditioning supply water switch valve. The water inlet of the evaporator in the water source heat pump unit was connected to the heat pump source water conveying pipe or the supply water pipe of the heat pump unit through the selection structure of a second valve, while the water outlet of the evaporator in the water source heat pump unit was connected to the source water drainage pipe or the supply water pipe of the heat pump unit via the selection structure of a third valve. The water inlet of the condenser in the water source heat pump unit was connected to the heat pump source water conveying pipe or the return water pipe of the heat pump unit through the selection structure of a fourth valve, while the outlet of the condenser in the water source heat pump unit was connected to the source water drainage pipe or the supply water pipe of the heat pump unit through the selection structure of a fifth valve.
Chinese Patent 201610042160.1 disclosed a multi-functional heat pump air conditioner device, comprised a compressor, a four-way reversing valve, an outdoor unit and a water fluorine heat exchanger, in which an indoor heat exchanger could be divided into a return heat end for indoor heating and dehumidifying and an indoor refrigerating and dehumidifying end. The water fluorine heat exchanger was divided into a first water fluorine heat exchanger and a second water fluorine heat exchanger. The first mode of the device was a refrigerating mode, comprised the first heat exchanging side of the compressor and the first water fluorine heat exchanger, the D-E end of the four-way valve, the outdoor unit, an expansion valve, the third heat exchanging side of the second water fluorine heat exchanger, the C-S end of the four-way valve and the compressor in which a refrigerating pump, the fourth heat exchanging side of the second water fluorine heat exchanger, and the indoor refrigerating and dehumidifying end were in communication. The second mode of the device was a heating mode, comprised the first heat exchanging side of the compressor and the first water fluorine heat exchanger, the D-C end of the four-way valve, the third heat exchanging side of the second water fluorine heat exchanger, the expansion valve, the outdoor unit, the E-S end of the four-way valve and the compressor in which the second heat exchanging side of the first water fluorine heat exchanger, the return heat end for indoor heating and dehumidifying and the heat water pump were in communication. The third mode of the device was a dehumidifying and heat recovery mode, comprised the first heat exchanging side of the compressor and the first water fluorine heat exchanger, the D-E end of the four-way valve, the outdoor unit, the expansion valve, the third heat exchanging side of the second water fluorine heat exchanger, the C-S end of the four-way valve and the compressor in which the second heat exchanging side of the first water fluorine heat exchanger, the return heat end for indoor heating and dehumidifying and the heat water pump constituted a heating circulation pipeline while the fourth heat exchanging side of the second water and fluorine heat exchanger, the indoor refrigerating and dehumidifying end, and the refrigerating water pump constituted a refrigeration pipeline.
Chinese utility model 201320343174.9 disclosed a heat pump air conditioner system with independent control for temperature and humidity, comprised a heat pump external machine, a heat pump internal machine and a heat exchanger successively connected in serial. Namely, the heat pump external machine and the heat pump internal machine were connected with each other, and the heat pump internal machine and the heat exchanger were connected with each other. The system further comprised a water distributor, a water distribution and collection device, a radiation end and a fresh air unit in which the heat exchanger was connected with the water distributor and the water distribution and collection device respectively, the water distributor was connected to the water distribution and collection device through the radiation end, and the fresh air unit was connected parallel between the water distributor, the water distribution and collection device and the heat exchanger. The fresh air unit was connected with the air distributor, the air distributor was connected to each air-replacing outlet through a number of built-in air valves.
However, the problem in the prior art is that the related structure is rather complex and the energy consumption should be further reduced.
The object of the present invention is to provide a heat pump air conditioner with dehumidifying function in which a temperature adjustable dehumidifier and a heat pump host are coordinated to adjust temperature and to dehumidify, with the characteristics of energy saving and simple structure.
In order to realize the object of the present invention, it is provided a heat pump air conditioner with a dehumidifying function, which comprises a heat pump host, a supply cooling/heating circulation system, an indoor heat exchanger and a dehumidifier with adjustable temperature located in a room.
The above heat pump host comprises a compressor, a first heat exchanger, a fan, a second heat exchanger, a four-way valve and an expansion valve and the supply cooling/heating circulation system comprises a supply cooling/heating pipeline, a return cooling/heating pipeline, a third heat exchanger, a water distribution and collection device and a circulating water pump in which the second and third heat exchangers are coupled into a dual-flow-channel heat exchanger, and the indoor heat exchanger is in communication with the water distribution and collection device after being connected with the dehumidifier with adjustable temperature in series, or the indoor heat exchanger and the dehumidifier with adjustable temperature are respectively connected with the water distribution and collection device, in which the dehumidifier with adjustable temperature works after the supply cooling/heating circulation system.
In the heat pump air conditioner of the present invention, the dehumidifier with adjustable temperature can comprise a cabinet, which can be provided with an indoor dual-flow-channel heat exchanger constituted by a fourth heat exchanger and an indoor condenser, an indoor compressor, an indoor evaporator, an indoor fan, an indoor expansion valve and a defrosting tray, wherein the defrosting tray is located below the indoor evaporator, the fourth heat exchanger is connected with the water distribution and collection device or the fourth heat exchanger and the indoor heat exchanger are connected in series, and the indoor compressor is connected with the indoor evaporator and the indoor condenser through the refrigerant pipe provided in the cabinet.
In the heat pump air conditioner of the present invention, an air inlet and an air outlet can be formed on the cabinet of the dehumidifier with adjustable temperature in which the air inlet and the air outlet are in fluid communication to form a circulation loop, the air outlet is corresponded to the outlet of the indoor fan, the indoor evaporator is provided in the inlet of the indoor fan, and the air outlet is provided at the outlet of the indoor fan.
In the heat pump air conditioner of the present invention, the dehumidifier with adjustable temperature can further comprise an indoor four-way valve located on the refrigerant pipe.
In the heat pump air conditioner of the present invention, the dehumidifier with adjustable temperature can be in fluid communication with the pipe between the indoor heat exchanger and the water distribution and collection device.
In the heat pump air conditioner of the present invention, there are a plurality of the dehumidifiers with adjustable temperature which are arranged in the same or different rooms. A plurality of the dehumidifiers with adjustable temperature can be connected with the water distribution and collection device respectively.
In the heat pump air conditioner of the present invention, the heat pump host can further comprise a main controller, the supply cooling/heating pipeline is provided with a supply cooling/heating temperature sensor, and an indoor temperature and humidity controller can be provided in a room in which the main controller is connected respectively to the compressor, the supply cooling/heating temperature sensor and the indoor temperature and humidity controller, wherein the indoor temperature and humidity controller is used to obtain the indoor temperature and humidity signal or dew point temperature, and send the temperature and humidity signal to the main controller, and the main controller is used to obtain the indoor dew point temperature based on the temperature and humidity signal, wherein the water supply temperature sensor is used to obtain the cooling/heating temperature on the supply cooling/heating pipeline and to send the cooling/heating temperature to the main controller, and wherein the main controller is used to control the operating parameters of the compressor so that the cooling/heating temperature is above the dew point temperature.
In the heat pump air conditioner of the present invention, the indoor heat exchanger can be located in the cabinet of the dehumidifier with adjustable temperature.
In the heat pump air conditioner of the present invention, stop valves can be provided with the supply cooling/heating pipeline and the return cooling/heating pipeline respectively.
In the heat pump air conditioner of the present invention, the supply cooling/heating circulation system is provided with refrigerant or water to transfer energy.
In the heat pump air conditioner with dehumidifying function of the present invention, the refrigeration function of the dehumidifier with adjustable temperature and that of the heat pump host can be coordinated for the temperature and humidity control to obtain a synergistic effect with energy saving, simple structure and convenient installation. At the same time, it can be so controlled in the summer that only the sensible heat load will be handled by the indoor heat exchanger for cooling and the dehumidifying load will be handled by the dehumidifier with adjustable temperature with the advantage of no dew formation on the indoor heat exchanger. Alternatively, when the dehumidifier with adjustable temperature dehumidifies a room, the heat absorbed from the indoor dehumidification plus the electrical power of the compressor of the dehumidifier with adjustable temperature will be released into the supply cooling/heating circulation system through the condenser of the dehumidifier with adjustable temperature, which will be cooperated with the heating operation of the heat pump host to provide hot water to the indoor heat exchanger so that an indoor radiator can be used to provide sufficient heat supplement to the interior of the room to ensure that the indoor temperature will not drop due to continuous dehumidification. In the case of low temperature and high humidity climate, such as days of returning to Southern Heaven and rainy days, it can ensure an indoor comfort with a simple structure and an easy use and thus the user can avoid to use an independent dehumidifier which is needed to move repeatedly or avoid to use an independent air conditioner for dehumidifying which will result in being more and more cold indoor.
The present invention will be further demonstrated in combination with the drawings.
As shown in
The heat pump host 1 comprises a compressor 11, a first heat exchanger 12, a fan 13, a second heat exchanger, a four-way valve 14 and an expansion valve 15. The supply cooling/heating circulation system 2 comprises a supply cooling/heating pipeline 21, a return cooling/heating pipeline 22, a third heat exchanger, a water distribution and collection device 23 and a circulating water pump 24. A pair of interlinked supply cooling/heating branch pipe and return cooling/heating branch pipe after the water distribution and collection device 23 form a branch line pair 27. The second and third heat exchanger are coupled into a dual-flow-channel heat exchanger 5. The indoor heat exchanger 3 is connected with the supply and return branch pipe of the water distribution and collection device 23. The dehumidifier with adjustable temperature 4 is connected with the return water branch pipe between the indoor heat exchanger 3 and the water distribution and collection device 23, or the dehumidifier with adjustable temperature 4 is directly connected with the water distribution and collection device 23. The dehumidifier with adjustable temperature 4 works after the supply cooling/heating circulation system 2, or in other words the dehumidifier with adjustable temperature 4 works after the heat pump host 1.
The indoor heat exchanger 3 can be radiant heat exchanger, such as cold panel/radiator, floor heating pipe, or convection heat exchanger.
In other embodiments, the dehumidifier with adjustable temperature 4 can be consistent with the indoor heat exchanger 3, in which both are directly connected with the water supply and return branch pipe of the water distribution and collection device 23. Alternately, the indoor heat exchanger 3 is connected with the supply water branch pipe or the return water branch pipe between the dehumidifier with adjustable temperature 4 and the water distribution and collection device 23.
As shown in
The indoor heat exchanger 3 and the indoor condenser of the dehumidifier with adjustable temperature 4 is connected in series on a branch pipe pair 27, and the indoor heat exchanger 3 and the indoor condenser of the dehumidifier with adjustable temperature 4 is connected sequentially, or the indoor condenser and the indoor heat exchanger 3 are connected sequentially. When there are two indoor heat exchangers 3 and one indoor condenser on a branch pipe pair 27 after the water distribution and collection device, they are connected by the sequence of an indoor heat exchanger 3, an indoor condenser and an indoor heat exchanger 3. There may be several indoor heat exchanger 3 and several dehumidifier with adjustable temperature 4 respectively, the connecting series can be selected according to the real need.
The indoor heat exchanger 3 and the dehumidifier with adjustable temperature 4 can also be connected in parallel to different branch pipe pairs 27 after the water distribution and collection device.
As shown in
In some embodiments, the indoor heat exchanger 3 can also be provided within the cabinet 49 to save installation space.
In the embodiment of
In the embodiment of
The main controller 16 can be a control unit of the heat pump host 1 itself, that is, a control unit for realizing start, stop and frequency control. The main controller 16 can also be a separate control module, which can be a control chip with a CPU, or an FPGA chip, an embedded chip or the like. The supply cooling/heating temperature sensor 26 is used to detect the cooling/heating temperature of the cooling medium in the cooling/heating pipe, which can transmit the cooling/heating temperature to the main controller 16 by means of wired transmission. The indoor temperature and humidity controller 7 can be an integrated module with temperature sensor and humidity sensor for detecting the temperature and humidity in the room. A dew point temperature can be directly calculated from the detected temperature and humidity of the room and sent to the main controller 16, or the detected temperature and humidity is sent to the main controller 16 to calculate the dew point temperature of the room.
The indoor temperature and humidity controller 7 can communicate with the main controller 16 in a wired manner. In the embodiment of
The main controller 16 is used to control the operating parameters (such as frequency) of the compressor such that the supply cooling/heating temperature is above the dew point temperature. When the heat pump air conditioner of the present invention is in a state of work,
The medium in the supply cooling/heating circulation system 2 is a refrigerant or water for transferring energy.
The above described is only some preferred embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and variations may be made without departing from the principles of the present invention, which are also regarded as the protection scope of the present invention.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2021109434561 | Aug 2021 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2022/095413 | 5/27/2022 | WO |
