Patent Application
20230221076
The present invention relates to a method for manufacturing a counter flow total heat exchanger, and more particularly, to a method of manufacturing a counter flow total heat exchanger, in which a flow path for supplying outdoor air and discharging indoor air is formed by using a hollow sheet to facilitate mass production.
In general, ventilation is one of the most important parts in building structures, such as houses, buildings, department stores, theaters, stores, schools, hospitals, and the likes. However, when the ventilation is performed, since indoor air which has been warmed or cooled by using a heating device or an air conditioner is discarded to the outside, it makes the interior colder or hotter, thereby reducing indoor cooling or heating effects. To solve this problem, ventilators each having a total heat exchanger have been developed.
The conventional total heat exchangers are divided into a cross flow type, a propeller flow type, and a counter flow type, and the counter flow type heat exchange has been widely used since providing the highest heat exchanging efficiency.
Here, the indoor air guide pipe 33b is formed in parallel with the outdoor air guide pipe 31b, and the indoor air inflow pipe 33a and the outdoor air discharge pipe 33c are respectively inclined to be opposed to the outdoor air inflow pipe 31a and the outdoor air discharge pipe 31c.
Accordingly, the air supply direction of the outdoor air A and the exhaust direction of the indoor air B are opposed to each other, and the total heat exchange is performed in this process.
However, in the conventional counter flow total heat exchanger 30, the outdoor air supply unit and the indoor air discharge unit are made of resin, and the heat transfer film is made of paper.
Since the outdoor air supply unit and the indoor air discharge unit, and the heat transfer film are made of different materials, there is a problem in that exchange of moisture is not properly performed.
In Korea, humidity load is high since there is a great difference between humidity in winter and humidity in summer. In such an environment, it is important to smoothly exchange moisture in the total heat exchanger. However, since the components of the counter flow total heat exchanger are made of different materials, the solid surface must absorb moisture in the flow path through which the indoor air and the outdoor air are moved, and then, the moisture must be transferred to the opposite side. In this instance, in a case in which the components are made of different materials, moisture may not be smoothly transferred.
In order to solve such a problem, Korean Patent No. 10-0911776 discloses a “total heat exchanger and a method for manufacturing a total heat exchanger”. Korean Patent No. 10-0911776 proposed a manufacturing method for forming a heat transfer film, an outdoor air supply unit and an intake guide unit with paper in a roll-to-roll method.
However, in the conventional art, as illustrated in
However, it is theoretically possible to form the flow path 51 in the paper 50, but in practice, since the paper has almost no deformation amount, it is difficult to maintain the shape of the flow path having the peaks and valleys, and thus it is impossible to perform actual processing.
That is, in order to form a desired flow path 51 using the paper 50, the paper 50 must be sufficiently thick, but if so, heat exchange performance is reduced. However, if the paper 50 is thin, the paper may be torn or it is difficult to maintain the processed shape.
Accordingly, the present invention has been made in view of the above-mentioned problems occurring in the related art, and it is an object of the present invention to provide a method for manufacturing a counter flow total heat exchanger capable of manufacturing a counter flow total heat exchanger using conventional roll-to-roll equipment as it is.
It is another object of the present invention to provide a method for manufacturing a counter flow total heat exchanger, in which an air flow path contacting a liner is made of the same paper as the liner, thereby increasing heat transfer efficiency and smoothly transferring moisture.
It is a further object of the present invention to provide a method for manufacturing a counter flow total heat exchanger, which can simply manufacture a counter flow total heat exchanger without complicated manufacturing equipment.
To accomplish the above-mentioned objects, according to the present invention, there is provided a method for manufacturing a counter current total heat exchanger comprising the steps of: inserting a first paper having a first width between a pair of rollers (210, 210a) ha g protrusions formed on the surfaces thereof to form a corrugated cardboard sheet (T) having flow paths (111c, 121c) of a single facer; adhering the corrugated cardboard sheet (T) to a middle region of a second paper having a second width that is wider than the first width; cutting the second paper, to which the corrugated cardboard sheet (T) is adhered, into a length corresponding to guide corrugated cardboards (111, 121); and cutting the second paper by means of a liner (130) having triangular resin tube coupling surfaces (133) formed on both sides of the cut guide corrugated cardboards (111, 121).
In addition, preferably, the method for manufacturing a counter current total heat exchanger includes the steps of: cutting a hollow sheet (300) in which a plurality of air movement paths are formed side by side into resin pipes (115, 117, 125, 127) corresponding to the shape of the resin pipe coupling surfaces (133); adhering a pair of the cut resin pipes (115, 117, 125, 127) to the resin pipe coupling surfaces (133) of both sides of the liner (130) in such a way that the air movement paths (340) communicate with the flow paths (111c, 121c and adhering the guide corrugated cardboards (111, 121) and the plurality of liners (130) to which the resin pipes (115, 117, 125, 127) are coupled to the upper surface in a height direction.
The method for manufacturing the counter flow heat exchanger according to the present invention can manufacture an outdoor air guide corrugated cardboard, an indoor air guide corrugated cardboard, and a liner with general paper by using conventional roll-to-roll equipment.
In addition, the method according to the present invention can simply manufacture the outdoor air supply unit and the indoor air discharge unit by cutting a hollow sheet sold in the market, processing a resin pipe, and adhering the resin pipe to a liner. Additionally, the outdoor air supply unit and the indoor air discharge unit are stacked on top of one another by turns.
Therefore, the method according to the present invention can reduce manufacturing costs since the counter flow heat exchanger is completely manufactured just by the existing roll-to-roll equipment, cutting device, and adhering device without any special equipment.
In addition, since the counter flow total heat exchanger manufactured as described above has the liner, the outdoor air guide corrugated cardboard, and the indoor air guide corrugated cardboard which are made of the same material, thereby enhancing heat transfer efficiency and moisture transfer efficiency.
100: Counter flow total heat exchanger 110: Outdoor air supply unit
111: Outdoor air guide corrugated cardboard 111a: Peak
111
b: Valley 111c: Outdoor air guide path
113: Outdoor air side wall 115: Outdoor air inflow resin pipe
115
a: Bottom plate 115b: upper plate
115
c: partition wall 115d: outdoor air inflow path
115
e: Outdoor air inlet 117: Outdoor air outflow resin pipe
120: Indoor air discharge part 121: Indoor air guide corrugated cardboard
123: Indoor air side wall 125: Indoor air inflow resin pipe
125
e: Indoor air inlet 127: Indoor air outflow resin pipe
127
e: Indoor air outlet 130: Liner
131: Corrugated coupling surface 133: Resin tube coupling surface
210: First roller 210a: Second roller
220: Second paper supply roller 300: hollow sheet
310: Upper surface 320: Lower surface
330: Vertical wall 340: Air movement path
A: outdoor air
B: indoor air
E: Adhesive
H: Heat
P1: First paper
P2: Second paper
T: Corrugated sheet
Hereinafter, preferred embodiments of the present invention will now be described in detail with reference to the attached drawings, in which like reference numbers denote corresponding parts throughout the drawings.
The terms “comprising” and “including” in the discussion directed to the present invention and the claims are used in an open-ended fashion and thus should be interrupted to mean “including”, but not limited thereto.
The counter flow total heat exchanger 100 according to the present invention is generally formed in a hexagonal column shape in cross section. The counter flow total heat exchanger 100 moves indoor air B and outdoor air A in a countercurrent manner and exchanges heat to have a high heat exchange efficiency.
In addition, areas of the outdoor air supply unit 110, the indoor air discharge unit 120 and the liner 130 which come into contact with each other are formed of paper to increase heat exchange and moisture transfer efficiency, and resin pipes made of resin are coupled to both sides thereof so that the counter flow total heat exchanger can be manufactured easily at a low price.
As illustrated in the enlarged section view of
The outdoor air side walls 113 are vertically coupled to both sides of the outdoor air guide corrugated board 111. As illustrated in
The outdoor air side wall 113 is vertically attached to the liner 130 outside the outdoor air guide corrugated cardboard 111.
As illustrated in
Accordingly, the outdoor air side walls 113 are coupled by attaching the paper vertically formed on both sides of the outdoor air guide corrugated cardboard 111. The outdoor air side wall 113 is formed in such a way that paper of the same thickness is adhered on the upper surface of the liner 130 by using an adhesive at a height corresponding to the height of the peaks b and the valleys a.
An outdoor air inflow resin pipe 115 and an outdoor air outflow resin pipe 117 are respectively coupled to both sides of the outdoor air guide corrugated cardboard 111. The outdoor air inflow resin pipe 115 and the outdoor air outflow resin pipe 117 are formed in a right-angled triangle, and one side of each of the outdoor air inflow resin pipe 115 and the outdoor air inflow resin pipe 117 is arranged to be in contact with the outdoor air guide corrugated cardboard 111.
The outdoor air inflow resin pipe 115 is formed of a resin material. The outdoor air inflow resin pipe 115 is formed in such a way that the hollow sheet 300 (see
The outdoor air inflow resin pipe 115 has a plurality of outdoor air inflow paths 115d formed between the bottom plate 115a and the upper plate 115b by the plurality of partition walls 115c.
Here, one side of the triangular outdoor air inflow resin pipe 115 is disposed to be in contact with the outdoor air guide corrugated cardboard 111, and an outdoor air inlet 115e through which the outdoor air A is introduced to the outdoor air inflow path 115d is formed in another side. The other side of the outdoor air inflow resin pipe 115 is blocked by the partition wall 115c.
In this instance, the plurality of outdoor air inflow paths 115d are formed in one side of the outdoor air guide corrugated cardboard 111 formed horizontally to be bent at a predetermined angle.
The outdoor air outflow resin pipe 117 has the same configuration as the outdoor air inflow resin pipe 115 except for the inclination angle of the outdoor air outflow path. The outdoor air outflow path has an outdoor air outlet 117e formed at an end portion thereof.
The outdoor air A is introduced into the outdoor air inlet 115e of the outdoor air inflow resin pipe 115, is moved to the outdoor air inflow path 115d, and then, is horizontally moved along the outdoor air guide path 111c of the outdoor air guide corrugated cardboard 111. Thereafter, the outdoor air A is supplied to the interior through the outdoor air outlet 117e of the outdoor air outflow resin pipe 117.
The indoor air discharge units 120 together with the outdoor air supply units 110 are disposed on top of one another by turns to discharge the indoor air B to the outside. The indoor air discharge unit 120 includes an indoor air guide corrugated cardboard 121, indoor air side walls 123 vertically provided at both sides of the indoor air guide corrugated cardboard 121, an indoor air inflow resin pipe 125 for introducing the indoor air B to the indoor air guide corrugated cardboard 121, and an indoor air outflow resin pipe 127 for discharging the indoor air B of the indoor air guide corrugated cardboard 121 to the outside.
The indoor air discharge unit 120 have the same configuration as the outdoor air supply unit 110, but is arranged in such a way that inclination angles of the indoor air inflow resin pipe 125 and the indoor air outflow resin pipe 127 are opposed to those of the outdoor air outflow resin pipe 117 and the outdoor air inflow resin pipe 115 arranged above.
The indoor air B is introduced into the indoor air inlet 125e of the indoor air inflow resin pipe 125, is moved along the indoor air guide corrugated cardboard 121, and then is discharged to the indoor air outflow resin pipe 127.
Here, as illustrated in
The liner 130 may be disposed between the plurality of outdoor air supply units 110 and the indoor air discharge units 120 which are alternately arranged in the vertical direction to transfer heat and moisture therebetween. The liner 130 according to the present disclosure is made of paper in the same way as the outdoor air guide corrugated cardboard 111 and the indoor air guide corrugated cardboard 121. Accordingly, the present invention can improve heat transfer efficiency and moisture transfer efficiency.
That is, as illustrated in
As illustrated in
The counter flow total heat exchanger 100 according to the present invention manufactures the outdoor air guide corrugated cardboard 111, the indoor air guide corrugated cardboard 121, and the liner 130 by using paper, and manufactures the outdoor air inflow resin pipe 115, the outdoor air outflow resin pipe 117, the indoor air inflow resin pipe 125, and the indoor air outflow resin pipe 127 by using the hollow sheet 300. Moreover, when the outdoor air guide corrugated cardboard 111, the outdoor air inflow resin pipe 115, and the outdoor air outflow resin pipe 117 are adhered on the manufactured liner 117, the outdoor air supply unit 110 is manufactured. When the indoor air inflow resin pipe 125 and the indoor air outflow resin pipe 127 are adhered onto the indoor air guide corrugated cardboard 121, the indoor air discharge unit 120 is manufactured.
Then, the manufactured outdoor air supply units 110 and the indoor air discharge units 120 are alternately stacked to complete the counter flow total heat exchanger 100.
As illustrated, a first paper P1 having a first width W1 is supplied between a pair of rollers 210 and 210a. Here, the first width W1 is the width of the outdoor air guide corrugated cardboard 111 as illustrated in
The first paper P1 is processed into a corrugated cardboard sheet T on which peaks a and valleys b are formed in the form of a single facer, while passing between the pair of rollers 210 and 210a.
The corrugated cardboard sheet T is supplied to the upper portion of the second paper P2. The second paper P2 is formed to have a second width W2 corresponding to the entire width of the liner 130. The second paper P2 is unwound from the second paper supply roller 220 and is supplied to the lower portion of the second roller 210a.
As illustrated in
As illustrated in
In addition, as illustrated in
As illustrated in
Meanwhile,
In the present invention, the known hollow sheet 300 is cut as illustrated in
The resin pipes 115, 117, 125, and 127 may be cut to have a shape corresponding to the resin pipe coupling surface 133 of the liner 130, or may be cut to have a shape of ‘<’ as illustrated in
In this instance, the resin pipe 115, 117, 125, or 127 is formed in such a way that the hollow sheet 300 is cut perpendicularly so that one side is communicated but the other side is blocked. When the resin pipe is cut as described above, an air flow path is formed, and a resin pipe of a right-angled triangle shape of which one side is blocked can be processed conveniently.
As illustrated in
In this instance, according to directions of the resin pipes 115, 117, 125 and 127 adhered to the resin pipe coupling surfaces 133 of the liner 130, the resin pipes are divided into the outdoor air supply unit 110 and the indoor air discharge unit 120. In a case in which the resin pipes 115, 117, 125 and 127 are cut to have a shape of ‘<’, the resin pipes 115, 117, 125 and 127 are spaced apart from the resin pipe coupling surfaces 133, but may be divided into the outdoor air supply unit 110 and the indoor air discharge unit 120 according to directions of the resin pipes 115, 117, 125 and 127.
When the plurality outdoor air supply units 110 and the plurality of indoor air discharge units 120 are adhered on the liner 130 and prepared, as illustrated in
In addition, as illustrated in
As described above, the method for manufacturing the counter flow heat exchanger according to the present invention can manufacture an outdoor air guide corrugated cardboard, an indoor air guide corrugated cardboard, and a liner with general paper by using conventional roll-to-roll equipment.
In addition, the method according to the present invention can simply manufacture the outdoor air supply unit and the indoor air discharge unit by cutting a hollow sheet sold in the market, processing a resin pipe, and adhering the resin pipe to a liner. Additionally, the outdoor air supply unit and the indoor air discharge unit are stacked on top of one another by turns.
Therefore, the method according to the present invention can reduce manufacturing costs since the counter flow heat exchanger is completely manufactured just by the existing roll-to-roll equipment, cutting device, and adhering device without any special equipment.
In addition, since the counter flow total heat exchanger manufactured as described above has the liner, the outdoor air guide corrugated cardboard, and the indoor air guide corrugated cardboard which are made of the same material, thereby enhancing heat transfer efficiency and moisture transfer efficiency.
The technical thoughts of the present invention have been described hereinafter.
It is to be appreciated that those skilled in the art can change or modify the embodiments from the above description in various ways. Although it is not clearly illustrated or described herein, it is to be appreciated that those skilled in the art can change or modify the embodiments from the above description in various ways without departing from the scope and spirit of the present invention and such changes and modifications belong to the scope of the present invention. While the present invention has been described with reference to the particular illustrative embodiments, it is not to be restricted by the embodiments but only by the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2020-0086248 | Jul 2020 | KR | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/KR2020/013346 | 9/29/2020 | WO |
