KR102665554B1 - Air drying device with improved moisture condensation efficiency - Google Patents

Abstract

The present invention relates to an air drying device with improved moisture condensation efficiency. More specifically, by adopting a heat exchange module with a structure with excellent heat exchange efficiency, rapid cooling of air and moisture condensation performance can be improved, and the phase change material is used. This relates to an air drying device that can be used to increase energy efficiency.
The present invention includes a main body; a plate-fin type heat exchange module mounted in the main body and cooling the incoming air using a refrigerant and a phase change material to remove moisture contained in the air; A chamber coupled to one side of the heat exchange module; wherein the heat exchange module is disposed on one side of the main body, and on the other side of the main body, air is communicated with the heat exchange module and exits the air inlet provided in the first plate portion. A chamber that guides the air outlet to the air outlet provided in the second plate portion and the third plate portion is characterized in that it is installed.

Description

Air drying device with improved moisture condensation efficiency}

The present invention relates to an air drying device with improved moisture condensation efficiency. More specifically, by adopting a heat exchange module with a structure with excellent heat exchange efficiency, rapid cooling of air and moisture condensation performance can be improved, and the phase change material is used. This relates to an air drying device that can be used to increase energy efficiency.

In general, a heat exchanger exchanges heat through thermal contact with a fluid while the heat medium circulates in a circulation cycle to absorb or heat the heat energy of the fluid depending on the desired purpose.

Such heat exchangers are applied in various fields, and one of them is used in refrigerated air dryers that cool, condense, and then remove moisture contained in compressed air (or exhaust gas).

Such an air dryer cools the fluid through a low-temperature heat medium (refrigerant) in the movement path of the fluid (compressed air, exhaust gas), cools and condenses the moisture contained therein, and then removes it to dry the fluid. do.

In other words, compressed air is cooled in a heat exchanger using a refrigerant, and the condensed water vapor inside is discharged and removed to the outside through a separator to create dry air.

At this time, the low-temperature dry air from which the condensate has been removed can be warmed by performing another heat exchange with wet air in a separate heat exchange space before being discharged, lowering the relative humidity and further increasing the degree of dryness. In addition, the high-temperature inlet Since air has a precooling effect, a configuration that can reduce the refrigeration load on the evaporator that constitutes the refrigerant cooling circulation system can be applied.

As described above, the air dryer is designed to continuously exchange heat with the fluid in a cooled state through a refrigerating circuit system, and the load characteristics of the air dryer frequently fluctuate from 0% to 100%. There is a problem in that it is difficult to control the temperature through on/off control of the cooling circulation system of the refrigerant.

Accordingly, in the past, the cooling circulation system for the refrigerant is constantly operated and the temperature is controlled by bypassing the refrigerant when necessary.

However, in this case, there was a problem in that energy use efficiency was significantly reduced because the refrigerant cooling circulation system was always operated regardless of the load value according to the load characteristics of the air dryer.

In order to solve the above-described conventional problems, an air dryer is designed to control the temperature through on/off control of the cooling circulation system of the refrigerant using an indirect cooling method using a refrigerant storage tank and a pump. It has been proposed and used, and in this case, because heat exchange with the fluid is performed using the sensible heat of glycol, the cool storage tank (tank) is large and a separate pump must be provided to circulate it to the heat exchanger where heat exchange is performed, which increases costs. There was a problem.

As a prior patent to solve this problem, referring to FIG. 10, a heat exchanger consisting of a main body formed to circulate a fluid and a heat exchange block formed to circulate a refrigerant and a heat chain phase change material; A fluid composed of a right-direction straight path, a downward straight path, a first left-direction straight path, an upward straight path, a second left-direction straight path, a left-downward ramp, and a third left-direction straight path so that the fluid circulates within the main body and heat exchange block of the heat exchanger. Circular road; a refrigerant circulation path composed of an upward straight line, a left straight line, and a downward straight line so that the refrigerant circulates within the heat medium heat exchange block of the heat exchanger; A heat exchanger using a phase change material, characterized in that it includes a heat medium circulation path consisting of a right straight path, a downward straight path, a leftward straight line, and an upward straight line so that the heat chain phase change material circulates within the heat medium heat exchange block of the heat exchanger. It has been disclosed.

Republic of Korea Patent No. 10-2089419

The present invention was created to solve the problems of the prior art. The purpose of the present invention is to improve the rapid cooling of air and moisture condensation performance by adopting a heat exchange module with a structure with excellent heat exchange efficiency, and to utilize a phase change material. The aim is to provide an air drying device that can increase energy efficiency.

The problems to be solved by the present invention are not limited to those mentioned above, and other problems not mentioned can be clearly understood by those skilled in the art from the description below.

In order to achieve the above object, an air drying device with improved moisture condensation efficiency according to the present invention includes a main body; a plate-fin type heat exchange module mounted in the main body and cooling the incoming air using a refrigerant and a phase change material to remove moisture contained in the air; A chamber coupled to one side of the heat exchange module; wherein the heat exchange module is disposed on one side of the main body, and on the other side of the main body, air is communicated with the heat exchange module and exits the air inlet provided in the first plate portion. A chamber that guides the air outlet to the air outlet provided in the second plate portion and the third plate portion is characterized in that it is installed.

In addition, in the air drying device with improved moisture condensation efficiency according to the present invention, the chamber is disposed on the other side of the main body and communicates with the first chamber portion and the first chamber portion through which the cooled air moves vertically. It consists of a second chamber part that is disposed at the top of the main body and moves the vertically moved air horizontally to the top of the main body, and the bottom of the first chamber part can discharge condensate generated as moisture contained in the cooled air condenses. It is characterized in that a condensate outlet is installed.

In addition, in the air drying device with improved moisture condensation efficiency according to the present invention, a first condensation guide member is installed in the first chamber part, a second condensation guide member is installed in the second chamber part, and the first condensation guide member is installed in the second chamber part. The second chamber part is divided into a 2-1 chamber part and a 2-2 chamber part based on the second condensation guide member, and the air from which the moisture is condensed is removed through the 2-2 chamber part into the air outlet path. It is characterized by movement.

In addition, in the air drying device with improved moisture condensation efficiency according to the present invention, the first condensation guide member includes a pair of ring bodies disposed at the top and bottom, and a plurality of condensate drop guides connecting the pair of ring bodies. It is characterized by being composed of a frame made of pins, a cylindrical first coil sheet inserted into the outer peripheral surface of the frame, and a plate-shaped second coil sheet inserted between the first coil sheets.

In addition, in the air drying device with improved moisture condensation efficiency according to the present invention, the second condensation guide member is composed of a pair of left and right third coil sheets, and the phase change material filling portion of the second plate portion and the refrigerant circulation path A pedestal for holding the third coil sheet is installed at the upper end of the , and the pedestal is characterized in that it has a structure inclined downward toward the first chamber part.

According to the air drying device according to the present invention, rapid cooling of air and moisture condensation performance can be improved by adopting a heat exchange module with a structure with excellent heat exchange efficiency, and energy efficiency can be improved by utilizing a phase change material. .

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below.

Figure 1 is a conceptual diagram showing an air drying system that improves moisture condensation efficiency by utilizing a phase change material according to the present invention.
Figures 2 (a) and (b) are perspective views showing an air drying device with improved moisture condensation efficiency according to the present invention.
Figure 3 is a longitudinal cross-sectional view of Figure 2.
Figure 4 is an exploded perspective view showing the main configuration of the heat exchange module of the present invention.
Figure 5 is a diagram schematically showing the circulation of heated air in the first plate portion of the present invention.
Figure 6 is a diagram schematically showing cooled air circulating in the second plate portion of the present invention.
Figure 7 is a diagram schematically showing the circular flow of air cooled in the third plate portion of the present invention and the circular flow of refrigerant.
Figure 8 is a cross-sectional view showing a structure showing a plurality of condensation guide members installed in the chamber of the present invention.
Figures 9 (a) and (b) are a perspective view of the first condensation guide member and a perspective view of the frame of Figure 7, respectively.
Figure 10 is a diagram showing a heat exchanger using a conventional phase change material.

Hereinafter, preferred embodiments of the present invention will be described in detail.

In describing the present invention, if a detailed description of a related known function or configuration is judged to unnecessarily obscure the gist of the present invention, the detailed description will be omitted. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention of the user or operator or precedents. Therefore, the definition should be made based on the contents throughout this specification.

Figure 1 is a conceptual diagram showing an air drying system that improves moisture condensation efficiency by utilizing a phase change material according to the present invention.

Referring to FIG. 1, the air drying system of the present invention includes an air drying device 100 consisting of a main body 110, a heat exchange module 130, and a chamber 160 coupled to one side of the heat exchange module 130, It includes a refrigerant gas circulation pipe 11 that circulates the refrigerant in the main body 110. And the refrigerant gas circulation pipe 11 includes a refrigerant compressor 13, an air cooled condenser 14, a cooling fan 15, a filter drier 17, and a capillary tube. Tube (18), etc. are installed. And a low pressure sensor (LPS) 13a and a high pressure sensor (HPS) 13b are installed before and after the refrigerant compressor 13 to measure the pressure before and after compression. Inside the chamber 160, a first temperature sensor is installed to measure the temperature of the cooled air passing through the main body 110, and on one side of the refrigerant inlet 112a, it measures the temperature of the refrigerant flowing into the main body 110. A second temperature sensor may be installed.

It is possible to determine whether to cool the phase change material filled in the phase change material filling part 134 using the temperatures of the air and refrigerant measured through the first and second temperature sensors. For example, if the temperature of the air measured through the first temperature sensor is higher than the preset temperature range, the cooling performance of the air through the latent heat of the phase change material is judged to be low and the compressor is driven, and conversely, the first temperature sensor When the temperature of the air measured through is below the preset temperature, the operation of the refrigeration cycle (compressor, etc.) can be controlled to stop. By using the inlet temperature of the cooled refrigerant from the second temperature sensor in addition to the first temperature sensor described above, the refrigerant circulation period can be set more accurately. More specifically, the air temperature is in a preset range, but even if the refrigerant temperature is outside the preset range, the compressor (refrigeration cycle) can be controlled to run or stop, and both the air temperature range and the refrigerant temperature range can be satisfied. You can also control the compressor to run or stop only when it does so.

Figures 2 (a) and (b) are perspective views showing an air drying device with improved moisture condensation efficiency according to the present invention, Figure 3 is a longitudinal cross-sectional view of Figure 2, and Figure 4 is a heat exchange module of the present invention. This is an exploded perspective view showing the main components.

Referring to Figures 2 to 4, the air drying device 100 with improved moisture condensation efficiency according to the present invention is largely composed of a main body 110 and a heat exchange module 130.

An air inlet 111a is installed at the upper end of one side of the main body 110, and an air outlet 111b is installed at the lower end to circulate air. At the lower end of the other side of the main body 110, a refrigerant inlet 112a and a refrigerant An outlet (112b) is installed so that the refrigerant circulates.

In addition, a phase change material inlet 113a and a phase change material outlet 113b are installed on one side of the refrigerant inlet 112a and the refrigerant outlet 112b, respectively. Plays the role of discharging or injecting phase change materials when necessary, such as exchanging phase change materials.

The heat exchange module 130 may be configured in a plate-fin manner, and is mounted within the main body 110 and cools the incoming air using a refrigerant and a phase change material to remove moisture contained in the air. It plays a role.

This heat exchange module 130 includes first plate portions 131 and 132 on one side of which an air inlet path 131 through which air flows is formed, and on the other side an air cooling path through which the introduced air is cooled. 1 is stacked on one side of the plate parts (131, 132), and on one side, an air outlet path (135) through which air from which moisture is removed is formed, and on the other side, a phase change material filling part (134) is formed, where the phase change material is filled. The formed second plate parts 134 and 135 are stacked on one side of the second plate parts 134 and 135, and an air outlet path 135 through which moisture-free air flows out is formed on one side, and a refrigerant is formed on the other side. The third plate portions 135 and 136 on which the refrigerant circulation path 136 is formed may be sequentially stacked.

The phase change material filling portion 134 of the second plate portion is disposed in front and rear of the air cooling path provided in the first plate portion 131 and 132, respectively.

That is, the heated air passing through the first plate part is cooled by heat exchange with the phase change material filled in the phase change material filling part provided in the second plate part, and the phase change material is recycled by the refrigerant circulating in the third plate part. It cools down.

Figure 5 is a diagram schematically showing the circulation of heated air in the first plate part of the present invention, and Figure 6 is a diagram schematically showing the circulation of cooled air in the second plate part of the present invention. Figure 7 is a diagram schematically showing the circular flow of air cooled in the third plate portion of the present invention and the circular flow of refrigerant.

Referring to FIG. 5, the air inlet 131 provided in the first plate portion has a first direct downward fin 131a connected to the air inlet 111a, and is in contact with the first direct downward fin 131a and is connected to the other side. It consists of a first left downward inclined pin (131b) that guides in the direction.

And the first direct downward fin 131a and the first left downward inclined fin 131b form a diagonal boundary surface.

The air cooling path 132 provided in the first plate portions 131 and 132 is in contact with the first left downward inclined fin 131b and is composed of a first horizontal fin 132 that guides the air to move horizontally.

And a vertical line-shaped boundary surface is formed with the first left downward inclined pin 131b.

Referring to FIG. 6, the air outlet path 135 provided in the second plate portion is disposed on the right side with respect to the interface with the phase change material filling portion 134, and the second direct downward fin 135a is disposed on the upper side. and a second right downward slanted fin 135b disposed below the second direct downward slanted fin 135a and forming a diagonal boundary surface with the second direct downward slanted fin 135a, and the second right downward slanted fin ( It is connected to a second horizontal fin (135c) disposed on the right side of 135b), a 2-1 right downward inclined fin (135d) disposed on the right side of the second horizontal fin (135c), and the air outlet (111b), and is connected to the air outlet (111b). It consists of a 2-1 direct downward inclined fin 135e disposed below the 2-1 right downward inclined fin 135d and forming a diagonal boundary surface.

Referring to FIG. 7, the air outlet path 135 provided in the third plate portions 135 and 136 is disposed on the right side with respect to the interface with the refrigerant circulation path 136, and the third direct downward fin is disposed on the upper side. (135a), and a third right downward inclined fin 135b disposed below the third direct downward fin 135a and forming a diagonal boundary surface with the third direct downward fin 135a, and the third right downward inclined fin 135b. A third horizontal fin (135c) disposed on the right side of the inclined fin (135b), a 3-1 right downward inclined pin (135d) disposed on the right side of the third horizontal pin (135c), and the 3-1 right downward inclined pin (135d) It consists of a 3-1 direct downward inclined fin (135e) disposed below the inclined fin (135d) and forming a diagonal boundary surface.

In addition, the refrigerant circulation path 136 provided in the third plate portion is disposed at the left end and includes a fourth directly upward fin 136a connected to the refrigerant inlet 112a, and an upper side of the fourth direct upward fin 136a. A fourth connection pin (136b) connected to the fourth connection pin (136b), a fourth direct downward pin (136c) connected to one side of the fourth connection pin (136b), and a fourth connection pin (136c) connected to the lower side of the fourth connection pin (136c). -1 connection pin (136d), a 4-1 direct upward pin (136e) connected to one side of the 4-1 connection pin (136d), and an upper side of the 4-1 direct upward pin (136d) It consists of a 4-2 connection pin (136f) connected to the 4-2 connection pin (136e), and a 4-1 direct downward pin (136g) connected to one side of the 4-2 connection pin (136e). is in contact with the third direct downward pin and the third right downward inclined fin.

Figure 8 is a cross-sectional view showing a structure showing a plurality of condensation guide members installed in the chamber of the present invention, and Figures 9 (a) and (b) are a perspective view of the first condensation guide member and a perspective view of the frame of Figure 7, respectively. am.

Referring to Figures 8 and 9, the heat exchange module 130 of the present invention has a chamber 160 installed on one side of the main body 110.

The chamber 160 is in communication with the heat exchange module 130 on the other side of the main body 110 and directs the air exiting the air inflow passage 131 provided in the first plate portions 131 and 132 to the second plate. It serves to guide the air outlet path 135 provided in the parts 134 and 135 and the third plate parts 135 and 136, respectively.

And the chamber 160 is disposed on the other side of the main body 110 and communicates with the first chamber part 162, where cooled air moves vertically, and is connected to the main body 110. It consists of a second chamber portion 162 that is disposed at the top and moves the air vertically to the top of the main body 110 horizontally.

A condensate water outlet 163 is installed at the bottom of the first chamber portion 162 to discharge condensate generated as moisture contained in the cooled air condenses.

A first condensation guide member 171 is installed in the first chamber part 162, and a second condensation guide member 172 is installed in the second chamber part 162.

Here, the second chamber part 162 is divided into a 2-1 chamber part and a 2-2 chamber part based on the second condensation guide member 172, and the air removed by condensing moisture is It moves to the air outlet path 135 through the 2-2 chamber part.

The first condensation guide member 171 of the present invention consists of a pair of ring bodies 175a disposed at the top and bottom, and a plurality of condensate drop guide pins 175b connecting the pair of ring bodies 175a. Frame 175, a cylindrical first coil sheet 171a inserted into the outer peripheral surface of the frame 175, and a plate-shaped second coil sheet 171b inserted between the first coil sheet 171a. It is desirable to consist of:

The condensate drop guide pin serves to guide the moisture coagulated or condensed through the first coil sheet and the second coil sheet to the condensate discharge port disposed at the bottom. In particular, one side of the first coil sheet (171a) in contact with the heat exchange module ) If there is a large amount of condensed moisture in the air, the moisture removal performance of the moisture-containing air is significantly reduced, so it is desirable to improve the moisture removal performance by moving the condensate drop guide pin downward.

It is preferable that the condensate drop guide pin as well as the coil sheet are made of a metal material with excellent heat transfer performance.

The second condensation guide member 172 of the present invention is composed of a pair of left and right third coil sheets (172a, 172b).

A pedestal 173 for holding the third coil sheets 172a and 172b is installed at the top of the phase change material filling portion 134 of the second plate portions 134 and 135 and the refrigerant circulation path 136.

The pedestal 173 has a structure that slopes downward toward the first chamber 162, thereby guiding condensed water condensed in the second chamber 162 to the first chamber 162.

The present invention described above is merely illustrative, and those skilled in the art will appreciate that various modifications and other equivalent embodiments are possible therefrom. Therefore, it will be understood that the present invention is not limited to the forms mentioned in the detailed description above. Therefore, the true scope of technical protection of the present invention should be determined by the technical spirit of the attached patent claims. In addition, the present invention should be understood to include all modifications, equivalents and substitutes within the spirit and scope of the present invention as defined by the appended claims.

100: moisture removal device 110: main body
111a: air inlet 111b: air outlet
112a: Refrigerant inlet 112b: Refrigerant outlet
113a: Phase change material inlet 113b: Phase change material outlet
130: heat exchange module 131, 132: first plate portion
131: air inlet 131a: first direct downward fin
131b: first left downward inclined fin 132: air cooling furnace/first horizontal fin
134, 135: second plate portion 134: phase change material filling portion
135: air outlet 135a: second and third direct downward fins
135b: 2nd and 3rd right downward inclined pins 135c: 2nd and 3rd horizontal pins
135d: 2-1, 3-1 right downward inclined pin 135e: 2-1, 3-1 directly downward inclined pin
135, 136: Third plate portion 136: Refrigerant circulation path
136a: Fourth direct upward pin 136b: Fourth connection pin
136c: 4th direct downward pin 136d: 4-1 connection pin
136e: 4-1 direct upward pin
136f: 4-2 connection pin 136g: 4-1 direct downward pin
141: plate 143: bulkhead
144a, 144b: Phase change material opening 145: Guide bar
160: Chamber 161: First chamber part
162: second chamber part 163: condensate outlet
171: first condensation guide member 171a, 171b: first and second coil sheets
172: second condensation guide member 172a, 172b: third coil sheet
173: stand 175: frame
175a: Ring body 175b: Drop guide pin
10: Air drying system
11: Refrigerant gas circulation pipe
13: Refrigerant compressor
13a: Low pressure sensor (LPS) 13b: High pressure sensor (HPS)
14: air-cooled condenser 15: cooling fan
17: Filter dryer
18: Capillary Tube 19: Bypass valve

Claims (5)

With the main body;
a plate-fin type heat exchange module mounted in the main body and cooling the incoming air using a refrigerant and a phase change material to remove moisture contained in the air; It includes a chamber coupled to one side of the heat exchange module,
The heat exchange module disposed on one side of the main body,
A first plate portion having an air inlet path through which air flows in is formed on one side, and an air cooling path through which the inflow air is cooled is formed on the other side, and air from which moisture has been removed is laminated on one side of the first plate portion and is provided on one side. A second plate portion is formed with an outflow air outlet, and the other side is formed with a phase change material filling portion, and an air outflow layer is laminated on one side of the second plate portion and on one side is an air outlet through which air from which moisture has been removed flows out. A furnace is formed, and on the other side, a third plate portion with a refrigerant circulation path through which the refrigerant circulates is formed, and the third plate portion is sequentially stacked,
The chamber disposed on the other side of the main body is in communication with the heat exchange module and guides the air exiting the air inflow path provided in the first plate portion to the air outlet path provided in the second plate portion and the third plate portion, A first chamber part disposed on the other side of the main body through which the cooled air moves vertically, and a second chamber part in communication with the first chamber part and disposed at the top of the main body through which the vertically moved air moves horizontally to the top of the main body It consists of a chamber part,
A condensate discharge port is installed at the bottom of the first chamber to discharge condensate generated as moisture contained in the cooled air condenses.
A first condensation guide member is installed in the first chamber portion,
A second condensation guide member is installed in the second chamber portion,
The second chamber part is divided into a 2-1 chamber part and a 2-2 chamber part based on the second condensation guide member, and the air in which moisture is condensed and removed is discharged through the 2-2 chamber part. An air drying device that improves the condensation efficiency of moisture, characterized by moving to a furnace.
delete delete According to paragraph 1,
The first condensation guide member includes a frame consisting of a pair of ring bodies disposed at the top and bottom, a plurality of condensate drop guide pins connecting the pair of ring bodies, and a cylindrical first member fitted on the outer peripheral surface of the frame. An air drying device with improved moisture condensation efficiency, comprising a coil sheet and a plate-shaped second coil sheet inserted between the first coil sheets.
According to paragraph 1,
The second condensation guide member is composed of a pair of left and right third coil sheets,
A stand for holding the third coil sheet is installed at the top of the phase change material filling portion of the second plate portion and the refrigerant circulation path,
An air drying device with improved moisture condensation efficiency, wherein the pedestal has a structure inclined downward toward the first chamber portion.

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