KR101055668B1 - Core module of regenerative evaporative air conditioner and its manufacturing method - Google Patents

Abstract

The present invention relates to a core module of a regenerative evaporative air conditioner and a method of manufacturing the same. The disclosed core module includes a plurality of unit modules each having at least one dry channel portion and at least one wet channel portion and repeatedly arranged and bonded to each other; And a wet channel guide duct formed at an outlet side of the wet channel part to separate the air bleeding through the wet channel part and the indoor air introduced into the dry channel part. The wet channel guide duct is formed to be fitted to be assembled to the wet channel portion, thereby facilitating the manufacture of the core module as a whole and reduce the possibility of leakage.

Regenerative evaporation, air conditioning, cooling cores, brazing

Description

Core module of regenerative evaporative air conditioner and its manufacturing method {CORE MODULE FOR REGENERATIVE EVAPORATIVE COOLER AND METHOD FOR FABRICATING THE SAME}

The present invention relates to a core module of a regenerative evaporative air conditioner and a manufacturing method thereof.

As air conditioners using conventional refrigerants increase in demand, energy consumption also rapidly increases, causing problems such as ozone layer destruction and global warming caused by refrigerants.

Regenerative Evaporative Coolers (RECs) have been suggested as an alternative solution to such problems.

The regenerative evaporative air conditioner is operated by cooling part of the air in the dry channel by inducing water evaporation by adding some of the air passing through the dry channel into the wet channel in which the water is moistened. At the wet channel surface, water evaporates to cool the wet channel surface and absorbs heat from the air in the relatively hot dry channel. Thus, the air passing through the dry channel can be cooled to the maximum dew point temperature without increasing humidity.

The core module is used as a device for heat exchange by concentrating the wet channel and the dry channel of the regenerative evaporative air conditioner. The core module has a complicated structure for efficient heat exchange.

 By the way, when leakage occurs between the dry channel and the wet channel, the cooling performance is lowered, so it is necessary to suppress the leakage. In particular, there is a greater chance of leakage in places where the pressure differential is large, such as between the dry channel inlet and the wet channel outlet.

The present invention has been made in view of the above, and an object thereof is to minimize the occurrence of leakage between the dry channel portion and the wet channel portion in the core module of the regenerative evaporative air conditioner.

Another object of the present invention is to allow such a leakproof structure to be easily manufactured without causing excessive deformation of existing equipment.

In order to solve the above problems, the core module of the regenerative evaporative air conditioner according to the present invention includes a plurality of unit modules repeatedly arranged and bonded, and a wet channel guide duct additionally formed in the unit module. Each unit module has at least one dry channel section and at least one wet channel section, respectively, and the wet channel guide duct is formed at the outlet side of the wet channel section, and the intake air passing through the wet channel section and the indoor air flowing into the dry channel section are provided. It is formed to be separated. The wet channel guide duct is formed to be fitted to be assembled to the wet channel portion.

As an example related to the present invention, the wet channel part and the dry channel part may each include a fin having a cross section of a waveform. A heat transfer plate may be disposed between the wet channel portion and the dry channel portion.

As an example related to the present invention, the outlet side of the wet channel part may have a wet channel extension protruding from the fin of the wet channel part so that the wet channel guide duct can be fitted. A limiting jaw may be formed in the wet channel extension part or the fitting portion of the wet channel guide duct so as to limit the insertion length of the wet channel guide duct.

The wet channel guide ducts may be formed for each wet channel unit. In this case, a spacer may be further formed between one of the wet channel guide ducts and the adjacent wet channel guide duct. Such spacers may be formed to extend from at least one of both sides of the wet channel guide duct to abut the adjacent spacers extending from the side of the adjacent wet channel guide duct or the side of the adjacent wet channel guide duct. Further, the spacer may be formed in a guide vane shape to guide the flow of indoor air toward the gun channel portion.

As an example related to the present invention, a header plate may be further provided to fix the unit modules to one side of the arranged unit modules and to form the outlet of the wet channel guide ducts. The header plate may have a hole corresponding to a cross section of the wet channel guide duct, and a duct extension extending from the wet channel guide duct to be inserted into the hole may be formed.

As an example related to the present invention, the unit module may be formed of a metal material, and the wet channel guide duct may be formed of a resin material. Bonding members may be further provided between the wet channel portion and the wet channel guide duct to maintain the airtight and wet channel guide ducts in a fixed state.

In addition, the present invention includes a plurality of unit modules each having at least one dry channel portion and at least one wet channel portion, and are repeatedly arranged and bonded to each other, and are formed at the outlet side of the dry channel portion and supplied to the inlet side of the wet channel portion. Also disclosed is a core module of a regenerative evaporative air conditioner including a gun channel guide duct separating the evaporated water and indoor air passing through the gun channel part, wherein the gun channel guide duct is fitted to be fitted to the gun channel part.

The core module manufacturing method of the regenerative evaporative air conditioner according to the present invention comprises the steps of repeatedly forming a dry channel pin, a heat transfer plate and a wet channel pin sequentially to form a unit module assembly of a predetermined standard, and a wet channel of the unit module assembly. Fixing the wet channel guide duct formed with the fitting portion to be fitted to the outlet side of the part, and forming a header plate to open the front end of the wet channel guide duct on both sides of the unit module assembly.

As described above, according to the core module of the regenerative evaporative air conditioner according to the present invention, since the guide duct is manufactured and assembled separately from the unit module assembly, it is easy to manufacture the core module and manages the site of high leakage potential. Can be improved. In addition, even when the wet channel guide duct is integrally formed with the unit module assembly, it is possible to significantly reduce the possibility of occurrence of leakage sites.

According to an example related to the present invention, the guide duct can be manufactured by injection molding of metal or resin, which is advantageous in increasing structural rigidity and maintaining shape.

Hereinafter, the core module of the regenerative evaporative air conditioner according to the present invention will be described in more detail with reference to the accompanying drawings. The suffixes "module" and "unit" for components used in the following description are given or mixed in consideration of ease of specification, and do not have distinct meanings or roles.

1 is a side view schematically showing an example of a regenerative evaporative air conditioner in which a core module related to the present invention may be used. Referring to FIG. 1, the regenerative evaporative air conditioner 1 includes a core module 20 for cooling air in a space to be cooled (hereinafter, referred to as 'indoor air'), and a supply blower 40 for supplying cooled indoor air. ), An evaporated water supply unit 70 for supplying evaporated water to the core module 20 to use the latent heat of evaporation, and an additional air blower 50 for extracting air heat-exchanged with indoor air to the outside. However, the position of the supply blower 40 may be disposed between the core module 20 and the suction part 11 of the indoor air, and the additional blower 50 may be omitted.

The regenerative evaporative air conditioner (1) is provided with a case (10) so that an external appearance can be configured. On one side of the case 10, the outlet 12 of the indoor air of the indoor air, the outlet 13 of the additional air is formed. An operation panel for controlling the air conditioner 1 may be provided at a specific position of the case 10.

A tank 61 for storing evaporated water may be installed at one side of the case 10 in order to continuously supply evaporated water, and a pump 62 may be included to send evaporated water to the evaporated water supply unit 70. .

The core module 20 is configured to cool the indoor air by latent heat of evaporation of the evaporated water supplied by the evaporated water supply unit 70. Detailed configuration of the core module 20 will be described in detail with reference to FIGS. 2 to 9.

2 is a perspective view of a core module related to the present invention, and FIG. 3 is a perspective view of a unit module constituting the core module of FIG. 2.

According to FIGS. 2 and 3, the core module 20 is formed by repeatedly stacking unit modules 20 ′ made up of a pair of dry channel portions D and wet channel portions W to form a combination therebetween. It is comprised by the form fixed by (21, 22).

The unit module 20 ′ refers to a unit repeated to form the core module 20. The unit module 20 ′ includes a wet channel pin 24 attached to the inside of the wet channel unit W, a wet channel unit W, and a dry channel unit. A heat transfer plate 26 disposed between (D), a gun channel pin 25 attached to an outer surface of the heat transfer plate 26, a wet channel guide duct 31, a gun channel guide duct 32, and the like. . However, the dry channel guide duct 32 may be omitted depending on the shape of the evaporated water supply unit 70.

The wet channel fins 24, the dry channel fins 25, and the heat transfer plate 26 are easily formed by evaporation of the evaporated water in which the indoor air passing through the dry channel portion D is wetted by the wet channel portion W. It is formed by processing a plate having excellent heat transfer efficiency to be cooled. As an example, these wet channel fins 24, the dry channel fins 25 and the heat transfer plate 26 may be aluminum or copper. The wet channel pins 24 and the dry channel pins 25 are bonded to the heat transfer plate 26 by brazing or the like.

The wet channel fins 24 and the dry channel fins 25 have a corrugated shape of corrugated shapes to allow the indoor air or flow to proceed in a constant direction while increasing the surface area. For this purpose, the thin plate-shaped pin may be bent in a zigzag form. In other words, the wet channel pin 24 and the dry channel pin 25 can be said to form a louver (louver) structure.

The surface of the wet channel fins 24 is processed or treated to be wetted by evaporated water. As such an embodiment, a method of coating or attaching using a porous material that can increase wettability on the surface of the wet channel pin 24 may be used. In addition, a method of forming fine holes, slots or grooves or embossing in the wet channel pins 24 may be used so that the evaporated water may be evenly spread over the entire wet channel pins 24. .

The wet channel pins 24 and the dry channel pins 25 manufactured as described above are attached to both sides of the heat transfer plate 26. The wet channel portion W is formed by the wet channel fins 24 and the heat transfer plate 26, and the dry channel portion D is formed by the dry channel portion D and the heat transfer plate 26. The wet channel portion W and the dry channel portion D are repeatedly arranged.

Evaporated water and additional air flow through the wet channel part (W), and indoor air flows through the dry channel part (D). According to FIG. 3, indoor air flows upward along the dry channel portion D, and additional air flows downward along the wet channel portion W. Referring to FIG. In this way, the bleed air and the evaporated water of the wet channel portion (W) and the indoor air of the dry channel portion (D) flow in a counterflow manner and are capable of heat exchange.

2 and 3, a wet channel guide duct 31 for guiding only the bleed air is disposed at the lower end of the wet channel part W so that the bleed air is not mixed with the indoor air. The wet channel guide duct 31 may be formed in a streamlined or wedge shape so as to reduce the flow resistance as much as possible when indoor air enters the dry channel part D. In addition, since the evaporated water wetted by the wet channel pins 24 may flow downward in the wet channel guide duct 31, the bottom surface of the wet channel guide duct 31 may gradient the evaporated water to flow toward the tank 61. It may be formed in the form having (or inclined).

The additional air passing through the outlet of the wet channel portion W is collected and discharged to one side by the wet channel guide duct 31.

The gun channel guide duct 32 separating the dry channel portion D from the wet channel portion W so as to block the inflow of the evaporated water sprayed toward the wet channel portion W at the upper end of the dry channel portion D. Can be formed. The dry channel guide duct 32 has an effect of dramatically reducing the structure and the required number of the evaporated water supply unit 70. However, depending on the configuration of the evaporated water supply unit 70, the dry channel guide duct 32 may be omitted.

The dry channel guide duct 32 may have a wedge or streamlined structure so that the evaporated water sprayed from the evaporated water supply unit 70 spreads through the wet channel unit W, and the outer surface has a valley or groove structure to help the water flow. It may include. Further, the outer surface of the dry channel guide duct 32 may be treated or attached to improve the wettability of the evaporated water.

The indoor air flowing along the gun channel guide duct 32 is supplied back to the room by the supply blower 40 or a part of the air is additionally directed to the wet channel part W.

As the wet channel fins 24 installed in the wet channel portion W are cooled by the evaporation of the evaporated water, the heat channel plate 26 and the dry channel pins 25 installed in the dry channel portion D are also cooled. As a result, the indoor air passing through the gun channel part D is cooled. In order to further increase the cooling efficiency, the direction of the indoor air passing through the wet channel part and the bleed air passing through the dry channel part may be configured as counterflow.

The evaporated water is supplied by the evaporated water supply unit 70 to wet the entire surface along the wet channel pin 24 having high wettability. The evaporated water flows downward by gravity and then flows from the lower portion of the wet channel portion W to the tank 61.

A wet channel guide duct 31 for guiding the bleed air and the evaporated water passing through the wet channel part W is provided below the wet channel part W. The additional air is discharged to the outside along the wet channel guide duct 31.

Figure 4a is an exploded perspective view showing a state before the unit module and the wet channel guide duct associated with the present invention, Figure 4b is a combined perspective view showing a state in which the unit module and the wet channel guide duct is coupled, Figure 11 is the present invention This is a block diagram showing the manufacturing process of the core module related to.

As shown in Figures 4a and 4b, the wet channel guide duct 31 includes a fitting portion 31a to be fitted to be assembled to the wet channel portion (W). The wet channel guide duct 31 is coupled to the bonded assembly in which the unit module 20 'is repeatedly arranged. In this regard, there is a difference from the method of forming the wet channel guide duct integrally with the wet channel part in the process of manufacturing the unit module 20 '. As a result, the height of the unit module assembly can be reduced by the length of the guide duct as compared with the case where the guide duct is integrally formed with the wet channel part, and the existing equipment can be utilized as a brazing facility for joining the heat transfer plate and the fin. There is an advantage. In addition, the coupling method of the wet channel guide duct 31 can reduce the possibility of leakage in the connection between the wet channel guide duct 31 and the header plates (21, 22). Unlike the unit module 20 ′ formed of a thin metal film, the wet channel guide duct 31 may be formed of a resin material, so that it is easy to secure necessary rigidity, and may be easily automated and mass-produced.

The outlet side of the wet channel portion W includes a wet channel extension 27 protruding from the wet channel pin 24 so that the wet channel guide duct 31 can be inserted. The wet channel extension 27 is formed in a shape corresponding to the fitting portion 31a of the wet channel guide duct 31 so that it can be fitted at least into the wet channel guide duct 31. According to FIG. 4A, the wet channel part W is formed in a rectangular case shape to prevent leakage when the wet channel guide duct 31 is coupled.

The header plate 22 is provided with a hole 22a corresponding to the cross section of the wet channel guide duct 31. Correspondingly, a tip end portion of the wet channel guide duct 31 is formed with a duct extension 31b extending to be inserted into the hole 22a. The duct extension 31b can reduce the defective rate of the product by guiding the assembly position during the assembly of the header plate 22, and prevents leakage between the header plate 22 and the wet channel guide duct 31. You can do it.

As shown in Figure 11, the core module related to the present invention can be obtained by the following process.

First, the dry channel pin 25, the heat transfer plate 26, and the wet channel pin 24 are sequentially and repeatedly formed to form a unit module assembly having a predetermined standard (S10). In addition, a wet channel guide duct 31 to be coupled to the unit module assembly is manufactured (S11). If the channel channel duct 32 is required, the channel channel duct 32 is also produced in this process. The wet channel guide duct 31 and the dry channel guide duct 32 are provided at the outlet of the wet channel portion W and the dry channel portion D so that the wet channel guide duct 31 and the dry channel guide duct 32 can be fitted to the outlet side of the wet channel portion W and the dry channel portion D. The fitting portion 31a is formed according to the shape. In addition, the front end portions of the wet channel guide duct 31 and the dry channel guide duct 32 are provided with a duct extension 31b to allow the holes 22a of the header plate 22 to pass through when they are coupled to the header plate 22. Form.

When the unit module assembly and the wet channel guide duct 31 is provided, the wet channel guide duct 31 is positioned at the site to be assembled and fixed by fitting (S20).

The header plate 22 may be manufactured separately from the unit module assembly (S21). The hole 22a is formed so that the duct extension 31b of the wet channel guide duct 31 can be inserted.

When the unit module assembly and the wet channel guide duct 31 are fixed, the header plate 22 is fixed to open the front end portions of the wet channel guide duct 31 on both sides of the unit module assembly (S30). However, the fixing of the header plate 22 may be made at the same time during the fixing process of the wet channel guide duct 31.

5 is a cross-sectional view illustrating a coupling structure of the wet channel unit and the wet channel guide duct, and FIGS. 6 to 7 are cross-sectional views illustrating another coupling structure of the wet channel unit and the wet channel guide duct, respectively. As shown in these figures, the wet channel extension portion 27 and the fitting portion 31a of the wet channel guide duct 31 form a structure in which the male and female shapes are combined.

According to FIG. 5, the fitting portion 31a of the wet channel guide duct 31 is inserted into the wet channel extension 27. On the contrary, the wet channel extension part 27 may be configured to be inserted into the fitting portion of the wet channel guide duct 31. Between the wet channel portion W and the wet channel guide duct 31 is included a joining member 28 for maintaining airtightness.

6 and 7 show that insertion restriction portions 27a and 31c are formed so that the wet channel guide duct 31 is not inserted beyond a predetermined value when the wet channel guide duct 31 is inserted. That is, in FIG. 6, the restricting portion 27a is formed in the wet channel extension 27, and in FIG. 7, the restricting portion 31c is formed in the fitting portion 31a of the wet channel guide duct 31. Each of the restricting portions 27a and 31c may have a structure similar to a protruding jaw or a protrusion.

8 is a perspective view showing a spacer formed in the wet channel guide duct as an example related to the present invention, FIG. 9 is a side view of the core module in which the spacer is disposed, and FIG. 10 is a wet channel guide duct showing another example of the spacer. Perspective view.

The wet channel guide duct 31 may be attached to each wet channel portion W, in which case each wet channel guide duct 31 may be equipped with a spacer 29 to maintain the correct mounting position. By arranging the spacer 29 between any one of the wet channel guide duct 31 and the adjacent wet channel guide duct 31, the correct position of each wet channel guide duct 31 is maintained.

As shown in FIG. 9, the spacer 29 extends from at least one side of both sides of the wet channel guide duct 31 from the side of the adjacent wet channel guide duct 31 or the side of the adjacent wet channel guide duct 31. It may be formed to abut the extended adjacent spacer (29).

10 shows that the shape of the spacer 29 is formed in a guide vane shape to guide the flow of indoor air toward the gun channel part D. FIG. That is, when the inflow direction of the indoor air and the direction of the dry channel portion (D) does not coincide with each other, the indoor air is smoothly introduced through the shape of the spacer 29. It is also possible to form a plurality of spacers 29.

The core module and the method of manufacturing the regenerative evaporative air conditioner described above are not limited to the configuration and method of the above-described embodiments, but the embodiments may be modified in various ways so that various modifications may be made. Or some may be selectively combined.

1 is a side view schematically showing an example of a regenerative evaporative air conditioner in which a core module related to the present invention may be used.

2 is a perspective view of a core module related to the present invention, and FIG. 3 is a perspective view of a unit module constituting the core module of FIG. 2.

Figure 4a is an exploded perspective view showing a state before the unit module and the wet channel guide duct associated with the present invention

Figure 4b is a perspective view showing a combined state of the module module and the wet channel guide duct

Figure 5 is a cross-sectional view showing a coupling structure of the wet channel portion and the wet channel guide duct

6 to 7 are cross-sectional views showing different coupling structures of the wet channel unit and the wet channel guide duct, respectively.

8 is a perspective view illustrating a spacer formed in a wet channel guide duct as an example related to the present invention.

9 is a side view of a core module with spacers disposed thereon

10 is a perspective view of a wet channel guide duct for showing another example of a spacer;

11 is a block diagram showing a manufacturing process of the core module related to the present invention.

Claims (16)

A plurality of unit modules each having at least one dry channel portion and at least one wet channel portion, and repeatedly arranged and bonded to each other; And And a wet channel guide duct mounted at an outlet side of the wet channel part to separate the additional air passing through the wet channel part and the indoor air introduced into the dry channel part. The wet channel guide duct is provided with a fitting portion extending to be fitted to the inside or the outside of the wet channel portion, The core module of the regenerative evaporative air conditioner of the wet channel guide duct is formed extending to protrude outward from the surface of the header plate on which the plurality of unit modules are mounted. The method of claim 1, The wet channel unit and the dry channel unit core module of the regenerative evaporative air conditioner, characterized in that it comprises a fin having a cross section of each wave. The method of claim 1, Core module of the regeneration evaporative air conditioner, characterized in that the heat transfer plate is disposed between the wet channel portion and the dry channel portion. The method of claim 2, The outlet side of the wet channel portion core module of the regenerative evaporative air conditioner, characterized in that the wet channel extending portion protruding from the fin of the wet channel portion so that the wet channel guide duct is fitted. 5. The method of claim 4, The wet channel extension portion core module of the regenerative evaporative air conditioner, characterized in that the limiting jaw is formed to limit the insertion length of the wet channel guide duct inserted. 5. The method of claim 4, A core module of the regenerative evaporative air conditioner of the wet channel guide duct is provided with a limiting jaw limiting the insertion length of the wet channel guide duct inserted. The method according to any one of claims 1 to 6, The wet channel guide duct is a core module of a regeneration evaporative air conditioner, characterized in that each formed for each of the wet channel. The method of claim 7, wherein The core module of the regenerative evaporative air conditioner of claim 1, wherein a spacer is further formed between any one of the wet channel guide ducts and the adjacent wet channel guide duct. The method of claim 8, And the spacer is formed to extend from at least one side of both sides of the wet channel guide duct to abut the adjacent spacer extending from the side of the adjacent wet channel guide duct or the side of the adjacent wet channel guide duct. Core module of evaporative air conditioner. 10. The method of claim 9, The spacer is a core module of a regenerative evaporative air conditioner, characterized in that it is formed in the shape of a guide vane (guide vane) to guide the flow of indoor air toward the gun channel portion. The method according to any one of claims 1 to 6, The header plate is a core module of a regeneration evaporative air conditioner, characterized in that installed on one side of the unit modules arranged. The method of claim 11, The header plate has a hole corresponding to the cross section of the wet channel guide duct, the duct extension is inserted into the hole and protrudes out of the header plate, the core module of the regenerative evaporative air conditioner. The method according to any one of claims 1 to 6, The unit module is formed of a metal material, the wet channel guide duct is a core module of a regenerative evaporative air conditioner, characterized in that formed of a metal or resin material. The method according to any one of claims 1 to 6, Core module of the regenerative evaporative air conditioner further comprises a bonding member for maintaining airtightness between the wet channel portion and the wet channel guide duct. delete delete

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