KR100340420B1 - A Subcooler Condenser With Receiver Dryer - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling apparatus for lowering the internal temperature of a vehicle to maintain a comfortable indoor environment, wherein the dryer is integrally mounted inside the condenser, and its technical configuration is provided on both sides of the condenser. One side of each of the condenser headers connected to each side connects the refrigerant inlet pipe and the refrigerant outlet pipe, respectively, and connects the dryer in which the filter cartridge is filled to one side of the other condenser header, so that the refrigerant passing through the filter cartridge is installed in the lower part of the dryer. It is to be subcooled while passing through the porous tube of the condenser which is a subcooling region again.

Description

Dryer Integrated Supercooled Condenser {A Subcooler Condenser With Receiver Dryer}

The present invention relates to a cooling apparatus for lowering the internal temperature of an automobile to maintain a comfortable indoor environment, and more particularly, to a dryer-integrated supercooled condenser in which a dryer is integrally mounted inside the condenser. One side of each of the condenser headers connected to each of the refrigerant inlet pipe and the refrigerant outlet pipe is connected to each other, the filter cartridge is filled in one side of the other condenser header connected to the dryer fixed by the refrigerant passing through the filter cartridge is installed in the lower part of the dryer It is characterized in that it is overcooled while passing through the porous tube of the condenser, which is again the supercooled region through the outlet hole.

In general, a low heat source is required to perform cooling in the interior of a vehicle, so that a suitable refrigerant is used, and a refrigerant cycle as shown in FIG. 1, that is, a compression process (1 → 2) → condensation, is used. Cooling the outside air by repeating liquefaction and vaporization while passing through the circulation path consisting of the process (2 → 3) → expansion process (3 → 4) → evaporation process (4 → 1) → compression process (1 → 2). Qc is the amount of heat of the refrigerant cooled in the condenser, Qe is the amount of cooling of the evaporator, and W is the power required for the compressor.

In addition, the supercooling degree (3 → 3 'conversion) of the refrigerant that becomes a liquid phase while passing through the condenser has a significant effect on the air conditioner performance. As the supercooling degree increases, the cooling performance is improved.

Therefore, the condenser and the dryer should be designed to ensure supercooling before the refrigerant flows into the expansion valve. If the wet refrigerant that is not completely condensed enters the expansion valve, the cooling performance is significantly reduced.

As shown in FIG. 2, a conventional refrigerator associated with such a technology has a high temperature and high pressure refrigerant gas discharged from the compressor through a refrigerant inlet pipe 10 connected to the compressor. Heat exchange occurs through the diporous tube 40 divided by the flow path plate 30a so as to have a multipath of zigzag and condensed into a high-pressure liquid refrigerant, and then connected to the bottom of the header 30. It is supplied to the dryer 60 through the discharge pipe 50 to remove moisture and dust contained in the refrigerant and then supplied to the expansion valve through the connection pipe 70.

In addition, a louver pin 40a is integrally connected to the outside of the porous tube 40, and the dryer 60 is a desiccant 60c through a porous partition plate 60a and a filter 60b inside. ) Is installed to support, and when the refrigerant passes through the dryer (60), moisture is removed while passing through the desiccant (60c) in a state where dust is removed through the filter (60b), and only the pure refrigerant itself is the dryer (60). ) Will be collected at the bottom, and will be supplied to the expansion valve through the connection pipe (70).

However, since the condenser 20 and the dryer 60 are separated and installed (the dryer 60 is connected to the outside of the condenser 20), the cooling apparatus as described above requires a process of manufacturing each of them. In addition to the increase in manufacturing costs, the installation process is complicated, and there is a problem that the cooling performance is reduced due to insufficient cooling of the refrigerant, thereby increasing the compressor power for operating the air conditioner and increasing the amount of refrigerant filling. .

The present invention is to improve the conventional problems as described above, the purpose is to improve the cooling performance by supercooling the refrigerant, to reduce the power of the compressor for operating the air conditioner, and to minimize the amount of refrigerant filling, thereby preventing environmental pollution In addition, the condenser and the dryer are integrated to reduce the number of parts accordingly, as well as to provide a dryer integrated supercooled condenser to improve the workability by simplifying the process.

1 is a graph showing a P-h diagram of a general vapor compression refrigeration cycle

Figure 2 is a schematic diagram showing a condenser in which a conventional dryer is externally mounted

3 is a schematic view showing a condenser integrally mounted with a dryer according to the present invention;

4A, B, and C are cross-sectional views of main parts of a condenser according to the present invention.

Figure 5 is a main cross-sectional view showing a connection state of the dryer side of the present inventors condenser

Figure 6 is a main cross-sectional view showing a condenser header coupling state connected to the other side of the present inventors condenser

Figure 7 is a schematic diagram showing a filter cartridge inside the dryer of the present invention

8A, B, and C are graphs showing the performance diagram of the condenser according to the present invention.

Explanation of symbols on the main parts of the drawings

100.Condenser body 130 ... Tube

Condenser headers 210 Europlate

200C ... Header 300 ... Dryer

330 filter cartridges

400 ... Desiccant

As a technical configuration for achieving the above object, the present invention, the condenser header is connected to both sides of the condenser in which a plurality of porous tubes are installed to form a flow path through which the refrigerant flows, the refrigerant inlet and the refrigerant at the upper and lower ends of the one condenser header The outlet is connected, the dryer is formed in the inlet hole and the outlet hole is connected to one side of the other condenser header is filled with a filter cartridge in the inside is configured to provide a dryer integrated subcooling condenser.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figures 3 to 8, the present invention includes a condenser as a refrigerant drying unit 600 and a subcooling unit 700 fixed to one side of the refrigerant condenser 500.

Refrigerant condensation unit 500, the support frame 110, the tube 130 on both sides of the condensation base body 100 is formed by installing a plurality of porous tubes 130 are integrally attached to the corgate louver pin 120 ) And the condenser header 200 are connected to each other, and a plurality of passage plates 210 are fixed to the inside of the condenser header 200 to form a predetermined passage.

At this time, the condenser header 200 is composed of a header body 200A installed to be connected to one end of the tube 130 and a cover 200B fixed to the surface contact, and passing through the tube 130. A plurality of flow path plates 210 are fixed to the inside of the header body 200A and the cover 200B so that the refrigerant forms a predetermined flow path having a zigzag shape, and are fixed integrally with one side of the cover 200B. The coolant inlet pipe 220 and the coolant outlet pipe 230 are connected to each other, and the other end of the tube 130 is connected to the header body 200C so as to be connected therethrough.

The refrigerant drying unit 600 installed at one side of the condenser header 200 has an inlet hole 310 and an outlet hole 320 connected to the condenser header in the dryer 300 fixed to the header body 200C. Is formed, the filter cartridge 330 is filled and fixed to the inside, the filter cartridge 330, a plurality of through holes on the outer diameter side, the lower side of the fixing pipe 360 protruding above the fixing plate 350 ( When the partition plate 380 having the 370 is fixed, the desiccant 400 is filled inside the metal mesh-shaped filter 390 to which the upper and lower ends are fixed by the partition plate 380.

The supercooling unit 700 in which the refrigerant passing through the refrigerant drying unit 600 is installed to overcool the tube 130 connects the refrigerant passing through the dryer 300 to the refrigerant outlet pipe 230 to overcool the refrigerant. It is made of a configuration to penetrate through the outlet hole 320.

Referring to the operation of the present invention made of such a configuration as follows.

3 to 8, the refrigerant introduced into the condenser main body 100 is further cooled to below the saturated liquid state and sent to the evaporator through the expansion valve at a temperature below the saturation temperature to the evaporator at the evaporator inlet. The degree of dryness decreases, and the cooling effect (the temperature of the coolant in the condenser main body 100 is overcooled, such as 3 → 3 '(4 → 4')) can be further increased.

This allows the refrigerant in the condensation base body 100 to be supercooled under any operating conditions so that the refrigerant in the condensation body 100 can be constantly cooled to a supercooled state in order to increase the cooling effect. As a result, the cooling capacity as much as ΔQ (3 → 3 '(4 → 4') is improved), thereby increasing the efficiency of the entire air conditioning system.

In addition, the manufacturing process is simplified by integrally installing a dryer 300 to the condenser header 200 to remove the dust and water included in the refrigerant as well as to constantly cool the refrigerant in the condenser body 100. To reduce cost and improve workability during installation.

In addition, the dryer (300) removes the condensation zone for condensing the high-temperature, high-pressure gas refrigerant introduced into the liquid inlet through the refrigerant inlet pipe 220 from the compressor (not shown) and the dust and moisture of the condensed liquid refrigerant. When the filter cartridge 330 is installed to store a certain amount of refrigerant at the time, the condenser has a condenser having a supercooling zone for supercooling the condenser liquid and the condensed liquid refrigerant so that the supercooled liquid refrigerant can be always sent to the evaporator.

In addition, when a gas refrigerant in a high temperature and high pressure state is introduced through a refrigerant inlet pipe 220 connected to a compressor (not shown), the refrigerant in the gas state passes through a tube 130 installed in the condensation main body 100. It is connected in a zigzag by the flow path plate 210 of the condenser header 200 to be connected to the tube 130 and flows inside the condenser body 100 while forming a flow path of a predetermined length or more.

At this time, when the refrigerant flows to the bottom of the condenser body 100 by the corgate louver fins 120 connected to the tube 130, the cooling fan is cooled as outside air contacting the louver fins 120 or installed on the radiator. It is forced to cool by rotation.

Subsequently, the liquid refrigerant liquefied by installing the filter cartridge 330 inside the dryer 300 so as to be positioned at the refrigerant inlet side of the tube 130 connected to the lower part of the condenser main body 100 in the tube 130. After flowing through the inflow hole 310, the drying agent 400 is introduced into the filter 390 in which the desiccant 400 is filled through the through hole 370.

At this time, the refrigerant passes through the filter 390 and the desiccant 400 to remove moisture and dust, and a certain amount is collected at the bottom of the filter cartridge 330, and only the pure refrigerant to remove the moisture and dust is present again. The tube 130 installed in the lowermost part of the condenser body 100 flows to be supercooled.

In addition, the pure refrigerant supercooled by the tube 130 flows to the expansion valve through the refrigerant outlet pipe 230 connected to one side of the condenser header 200.

The condenser header 200 connected to both ends of the condensation main body 100 is composed of a header body 200A installed to be connected to one end of the tube 130 and a cover 200B fixed to surface contact therewith. The header body 200A and the cover 200B have a rounded rectangular shape and are processed by pressing, and then fixed by surface contact to perform welding by brazing to form a condenser header 200.

At this time, the header body 200A and the cover 200B constituting the condenser header 200 are formed to have a radius of curvature in a range of 5-48% based on the width of the header 200.

In addition, the dryer 300, which is fixed by surface contact with the condenser header 200 and welded by brazing, is formed in a cylindrical shape by extrusion processing.

Subsequently, one side of each of the plurality of flow path plates 210 is formed in the fixing groove 210A formed inside the header body 200A and the cover 200B so that the refrigerant passing through the tube 130 forms a predetermined flow path. It is fixed integrally in the support state, and the refrigerant inlet pipe 220 and the refrigerant outlet pipe 230 are connected to one side of the cover 200B so that the refrigerant flows in and out through the condensation main body 100.

The dryer 300 fixed to the header body 200C of the condenser header 200 has an inlet hole 310 and an outlet hole 320 formed in the other condenser header so as to penetrate therethrough, and a filter cartridge 330 therein. Filled and fixed, the filter cartridge 330 has a plurality of through holes 370 on the outer diameter side of the fixing pipe 360 is supported through a fixing plate 350 is fixed to the inside of the dryer 300 When the partition plate 380 is fixed, the desiccant 400 is filled inside the filter 390 supported by the partition plate 380.

At this time, the refrigerant flowing through the inlet hole 310 is introduced through the through hole 370 of the partition plate 380 to remove dust as the filter 390, and the drying agent filled in the filter 390 ( 400) to remove the moisture.

As described above, according to the dryer integrated supercooled condenser according to the present invention, the cooling performance is improved by supercooling the refrigerant, reducing the compressor power for operating the air conditioner, minimizing the refrigerant filling amount, thereby preventing environmental pollution, and Integrating the dryer reduces the number of parts, thereby improving workability by simplifying the process.

While the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit or scope of the invention as provided by the following claims. I would like to clarify that those who have knowledge of this can easily know.

Claims (5)

Condenser header 200 through which the tube 130 and the condenser header 200 are connected to both sides of the condensation base body 100 in which a plurality of tubes 130 are stacked is installed, and the refrigerant flowing inside the tube 130 is constant. A refrigerant condenser 500 having a flow path plate 210 installed inside the condenser header 200 to form a flow path, and The filter cartridge 330 is formed to store a predetermined amount of refrigerant while removing the dust and moisture of the refrigerant condensed in the refrigerant condenser 500, the inlet hole 310 on one side of the condenser header 200 so as to be located in the flow path of the refrigerant. And a refrigerant drying unit 600 fixed to the inside of the dryer 300 through which the refrigerant is flowed through the outlet hole 320). It characterized in that the condenser comprises a supercooling unit 700 for installing the tube 130 to connect the refrigerant passing through the outlet hole 320 of the dryer 300 through the condenser header 200 through cooling so as to overcool. Dryer integrated supercooled condenser The method of claim 1, wherein the condenser header 200 is formed as a header body 200A and a cover 200B fixed thereto so that the refrigerant inlet pipe 220 and the refrigerant outlet pipe 230 are connected to one side thereof. Dryer integrated supercooled condenser The filter cartridge 330 of claim 1, wherein the filter cartridge 330 has a plurality of through holes 370 on the outer diameter side of the fixing pipe 360 supported by the fixing plate 350 fixed inside the dryer 300. Dryer integrated supercooled condenser characterized in that the drying agent 400 is filled inside the filter 390 supported by the partition plate 380 when the partition plate 380 is fixed. The method of claim 1, wherein the dryer 300, the inlet hole 310 and the outlet hole 320 are respectively formed through the flow path plate 210 so that the direction of the flow path of the refrigerant is different. Dryer Integrated Supercooled Condenser The method of claim 1, wherein the supercooling unit 700 is a dryer integrated supercooled condenser, characterized in that the tube 130 is connected to the refrigerant outlet pipe 230 on one side of the condenser header 200 is installed.