KR101918506B1 - Heat Exchanger - Google Patents

Abstract

The present invention relates to a plate type heat exchanger, and more particularly, to a plate type heat exchanger in which a condensation region, a first supercooled region, and a second supercooled region are formed in a stacking direction of a plate to enable miniaturization, Thereby improving the cooling performance of the plate heat exchanger.

Description

[0001] Heat Exchanger [0002]

The present invention relates to a plate type heat exchanger, and more particularly, to a plate type heat exchanger in which a condensation region, a first supercooled region, and a second supercooled region are formed in a stacking direction of a plate to enable miniaturization, Thereby improving the cooling performance of the plate heat exchanger.

In recent years, interest in the environment and energy has been increasing worldwide in the automobile industry, and studies for improving fuel efficiency have been made. Research and development for lightening, miniaturization and high performance are continuously carried out in order to satisfy the needs of various consumers.

Particularly, in a vehicle air conditioning system, it is difficult to secure a sufficient space in the engine room. Therefore, the structure of the heat exchanger constituting the automotive air conditioning system is required to be compact and capable of improving efficiency.

1 is a view showing a conventional plate heat exchanger. The plate heat exchanger shown in FIG. 1 includes a first inlet pipe 10 through which a first heat exchange medium flows and a first outlet pipe (not shown) through which the first heat exchange medium is introduced; A second inlet pipe 30 through which the second heat exchange medium is introduced and a second outlet pipe through which the second heat exchange medium is introduced (not shown); And a plate (50) which forms a first fluid flow portion (51) and a second fluid flow portion (52) in which a plurality of first fluid exchange media and a second heat exchange medium flow alternately, respectively; .

1 shows an example in which the inner fin 60 is provided to increase the durability of the overall plate heat exchanger, and the two kinds of heat exchange media of the first heat exchange medium and the second heat exchange medium heat exchange with each other.

On the other hand, in recent years, it is necessary to cool the heat exchange medium additionally in accordance with the use of a hybrid type or a new device, and a method for installing a separate heat exchanger or exchanging heat among three kinds of heat exchange media has been researched.

As an example, US Pat. No. 5,642,113 (entitled "Three-circuit stacked plate heat exchanger") is shown in FIG.

In the heat exchanger shown in FIG. 2, six holes are formed in one plate, and the first heat exchanging medium to the third heat exchanging medium selectively flows into a space formed by each plate.

FIG. 2 is a cross-sectional view showing a space in which the first heat exchange medium flows in FIG. 2 (a), a space in which the second heat exchange medium flows in FIG. 2 (b) The space to be flowed is indicated.

The flat plate heat exchanger shown in FIG. 2 has an advantage that heat exchange can be performed between three kinds of heat exchange media without adding a separate heat exchanger. However, since six holes are formed in a single plate, heat exchange medium There is a drawback that the area is reduced. Further, it has a complicated plate shape and has a disadvantage that three types of heat exchange media are mixed when internal leakage occurs.

Therefore, it is required to develop a plate heat exchanger capable of ensuring a sufficient heat exchange medium flow space and heat-exchanging three types of heat exchange media even with a simple structure.

US-A-05462113 (entitled " Three-circuit stacked plate heat exchanger "

SUMMARY OF THE INVENTION It is an object of the present invention to provide a condenser in which a condensation region, a first supercooled region, and a second supercooled region are formed in a direction in which plates are stacked, Thereby preventing the outlet side temperature from rising excessively, thereby improving the cooling performance.

Particularly, it is an object of the present invention to provide a method and a device for heat exchange in which a first heat exchange medium and a second heat exchange medium are heat-exchanged in a condensation region, a first heat exchange medium passing through the condensation region and a gas- In the second subcooling region, the first subcooling region and the third subcooling region are heat-exchanged with each other to increase the subcooling performance, thereby improving the cooling performance, thereby reducing the power consumption of the compressor. And to provide a heat exchanger.

Further, the object of the present invention is to provide a method of manufacturing a heat exchanger, which is capable of reducing heat loss by controlling the first through fifth holes, the protruding direction of the partition, To provide a plate-type heat exchanger capable of manufacturing a heat exchanger and capable of downsizing and securing the production of the plate.

The plate heat exchanger 1000 of the present invention includes a first inlet pipe 110 through which the first heat exchange medium is introduced and a first outlet pipe 120 through which the first heat exchange medium is discharged; A second inlet pipe 210 through which the second heat exchange medium is introduced and a second outlet pipe 220 through which the second heat exchange medium is introduced; And a third inlet pipe (310) and a third outlet pipe (320) through which the third heat exchange medium is introduced; A plurality of stacked layers are stacked to form a first fluid flow portion 400a through which the first heat exchange medium flows, a second fluid flow portion 400b through which the second heat exchange medium flows, and a third fluid flow portion 400c through which the third heat exchange medium flows The plate type heat exchanger 1000 includes a first connection pipe 510 and a second connection pipe 500 connected to the first fluid passage 400a, Liquid separator 500 connected to the first heat exchanging medium and the second heat exchanging medium and includes a condensing region A1 in which the first heat exchanging medium and the second heat exchanging medium are heat-exchanged with each other in the stacking direction of the plate 400, A first subcooled region A2 through which the first heat exchange medium and the second heat exchange medium passed through the gas-liquid separator 500 undergo heat exchange, a first heat exchange medium and a third heat exchange medium which have passed through the first subcooled region A2, The second subcooled region A3 is formed.

The plate type heat exchanger 1000 includes a first communication hole 401 (see FIG. 1) in which first joint portions 408-1 and 408-2 protruding upward or downward in a circumferential direction are formed on one side of a lengthwise direction of the plate 400, A second communication hole 402 in which the first bonding portions 408-1 and 408-2 are formed on the other side of the plate 400 in the lengthwise direction of the plate 400, And a second communication portion 409-1 and 409-2, which are positioned in parallel with the hole 401 and protrude in a direction opposite to the protruding direction of the first junction 408-1 and the second junction 408-2, A fourth communication hole 404 is formed on the other side of the plate 400 in the longitudinal direction of the plate 400 in parallel with the second communication hole 402 and in which the second bonding portions 409-1 and 409-2 are formed, The first plate 410 and the first plate 408-1 are formed in a hollow shape and the first joint 408-1 is formed in a downward direction and the second joint 409-1 is formed in an upward direction, 2) And a second plate 420 in which the second junction 409-2 is formed in a downward direction and wherein the condensing region A1 is formed by the first plate 410 and the second plate 420, And are stacked alternately.

The plate heat exchanger 1000 has the same shape as the first plate 410 and the second plate 420 and the second communication hole is closed 402a and the second communication hole 402 is closed A fifth communication hole 405 is formed on the other side of the adjacent plate 400 so that the first bonding portions 408-1 and 408-2 are formed at the periphery of the plate 400. The first bonding portion 408-1 A third plate 430 formed in a downward direction and having the second joining portion 409-1 formed in an upward direction and the first joining portion 408-2 formed in an upward direction and the second joining portion 409-2 And the fourth plate 440 is formed in a downward direction. The first subcooled region A2 is formed by alternately stacking the third plate 430 and the fourth plate 440.

The plate 400 has the same shape as the first plate 410 and the second plate 420 and is formed on the other side of the plate 400 adjacent to the second communication hole 402, 408-1 and 408-2 are formed in the circumferential portion and a region where the second communication hole 402 is formed in the longitudinal direction of the plate 400 and the fifth communication hole 406b formed in the width direction of the plate 400 so as to divide the region where the first bonding portions 409-1 and 405 are formed and which are convex or concave in the same direction as the second bonding portions 409-1 and 409-2, And the fifth plate 450 is formed with the first bonding portion 408-1 in a downward direction and the second bonding portion 409-1 in an upward direction and the partitioning portion 406a is convexly formed. And the first bonding portion 408-2 are formed in the upper direction and the second bonding portion 409-2 is formed in the lower direction and the partition portion 406b The second subcooled region A3 is characterized in that the fifth plate 450 and the fifth plate 450 are alternately stacked.

The plate type heat exchanger 1000 may be configured such that the first communication hole and the second communication hole of the first plate 410 are closed so as to partition the condensation region A1 and the first subcooled region A2, And a first partition plate (470) formed on the first partition plate (470).

Also, the plate-type heat exchanger 1000 is configured such that the third communication hole and the fourth communication hole of the third plate 430 are closed (403) so as to partition the first subcooled region (A2) and the second subcooled region (A3) , 404).

The plate type heat exchanger 1000 is configured to close the first communication holes of the fifth plate 450 and the sixth plate 460 to block the flow of the first heat exchange medium in the stacking direction of the plates 400 Or the second communication hole is closed (402a).

The plate heat exchanger 1000 is a cooling medium in which the first heat exchange medium passes through the compressor 4000 and the second heat exchange medium is cooled by passing through the radiator 610. The third heat exchange medium And is a refrigerant before passing through the compressor (4000) after passing through the evaporator (3000).

Accordingly, the plate-type heat exchanger of the present invention is a condenser in which a condensation region, a first supercooled region, and a second supercooled region are formed in a lamination direction of a plate, thereby enabling downsizing and preventing an evaporator from excessively increasing the temperature on the outlet side There is an advantage that the cooling performance can be improved.

Particularly, in the plate-type heat exchanger of the present invention, the first heat exchange medium and the second heat exchange medium are heat-exchanged in the condensation region, the first heat exchange medium passing through the condensation region and the gas-liquid separator in the first subcooled region is heat- , The first and third heat exchange mediums passing through the first subcooled region in the second subcooled region are heat-exchanged to increase the subcooling performance, thereby improving the cooling performance, thereby reducing the power consumption of the compressor There are advantages.

Further, the plate-type heat exchanger of the present invention regulates the first through fifth holes, the protruding direction of the partition, and the presence or absence of the partition, thereby heat-exchanging the first heat exchange medium, the second heat exchange medium, and the third heat exchange medium It is possible to manufacture a plate-type heat exchanger, which makes it possible to reduce the size of the plate-type heat exchanger, and it is advantageous in that the production can be ensured.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a conventional plate heat exchanger. FIG.
2 is a view showing another conventional plate heat exchanger.
FIGS. 3 to 5 are a perspective view, an exploded perspective view, and an overall flow schematic view of a first heat exchanging medium to a third heat exchanging medium according to the present invention; FIG.
6 to 8 are schematic views showing flows of a first heat exchange medium, a second heat exchange medium, and a third heat exchange medium of a plate heat exchanger according to the present invention, respectively.
FIGS. 9 to 11 are perspective views showing plates of the plate heat exchanger shown in FIGS. 3 and 4. FIG.

Hereinafter, the plate heat exchanger 1000 of the present invention having the above-described characteristics will be described in detail with reference to the accompanying drawings.

The plate heat exchanger 1000 of the present invention includes a first inlet pipe 110, a first outlet pipe 120, a second inlet pipe 210, a second outlet pipe 220, a third outlet pipe 320, A fourth outlet pipe, a plate 400, a first connecting pipe 510, a second connecting pipe 520, and a gas-liquid separator 500.

The first inlet pipe 110 is a portion through which the first heat exchange medium is introduced, and the first outlet pipe 120 is a portion through which the first heat exchange medium is discharged. In addition, the second inlet pipe 210 is a portion through which the second heat exchange medium is introduced, and the second outlet pipe 220 is a portion through which the second heat exchange medium is discharged. The third inlet pipe 310 is a portion through which the third heat exchange medium is introduced, and the third outlet pipe 320 is a portion through which the third heat exchange medium is discharged.

A plurality of the plates 400 are stacked to form a first fluid flow portion 400a through which the first heat exchange medium flows, a second fluid flow portion 400b through which the second heat exchange medium flows, and a third fluid flow portion 400b through which the third heat exchange medium flows Thereby forming the moving part 400c.

The gas-liquid separator 500 is connected to the other end of the first connection pipe 510 and the second connection pipe 520, one end of which is connected to the first fluid passage 400a, The first heat exchange medium is introduced through the second connection pipe 520 and the first heat exchange medium is separated from the gas phase and the liquid phase.

At this time, the plate 400 has a condensing region A1, a first supercooled region A2, and a second supercooled region A3 in the stacking direction, and the plate heat exchanger 1000 of the present invention Condenser.

The condensing region A1 is a region where the first heat exchange medium and the second heat exchange medium are heat-exchanged with each other. The first heat exchange medium and the second inlet pipe 210 flow through the first inlet pipe 110, The second heat exchange medium flowing through the second heat exchange medium is heat-exchanged with each other.

That is, the condensing region A1 is formed by alternating the plate 400 forming the first fluid flow portion 400a and the plate 400 forming the second fluid flow portion 400b, and the condensing region A1 ) Will be described again below.

The first subcooled region A2 is formed below the condensation region A1 and the first heat exchange medium and the second heat exchange medium having passed through the condensation region A1 and the gas-liquid separator 500 are heat-exchanged with each other.

At this time, the plate 400 forming the first fluid unit 400a and the plate 400 forming the second fluid unit 400b are formed in the first subcooled area A2 as in the condensing area A1 And a first heat exchange medium having passed through the gas-liquid separator 500 is introduced.

The first subcooling zone A2 and the first subcooling zone A2 are formed in the condensing zone A1 and the second subcooling zone A2, respectively.

The second subcooled region A3 is formed on the first heat exchange medium formed on the lower side of the first subcooled region A2 and passing through the first subcooled region A2 and the second subcooled region A2 flowing through the third inlet pipe 310, The third heat exchange medium is heat-exchanged.

The second subcooled region A3 is formed by alternating the plate 400 forming the first fluid portion 400a and the plate 400 forming the third fluid portion 400c, Liquid separator 500 with the second heat exchange medium A2.

5, the plate heat exchanger 1000 of the present invention is a refrigerant in which the first heat exchange medium passes through the compressor 4000 and the second heat exchange medium is cooling water cooled through the radiator 610, 3 is the cooled refrigerant after passing through the evaporator 3000 and before passing through the compressor 4000. [

6 to 8 are schematic views showing flows of the first heat exchanging medium, the second heat exchanging medium, and the third heat exchanging medium of the plate heat exchanger 1000 according to the present invention. In the plate heat exchanger 1000, The flow of the first heat exchange medium, the second heat exchange medium, and the third heat exchange medium is shown in detail.

5 and 6, the first heat exchange medium flowing through the first inlet pipe 110 of the plate heat exchanger 1000 of the present invention includes the compressor 4000 Pressure liquid refrigerant which passes through the condensing region A1, the gas-liquid separator 500, the first supercooled region A2 and the second supercooled region A3 in this order, After passing through the expansion valve 200, the refrigerant is decompressed and expanded to a low temperature and low pressure.

The first heat exchange medium having passed through the expansion valve 200 is evaporated by heat exchange with air blown to the interior of the vehicle through the evaporator 3000, and at the same time, the air blown into the interior of the vehicle is absorbed .

That is, the first heat exchange medium is used as a refrigerant for vehicle cooling.

The second heat exchange medium flowing through the second inlet pipe 210 of the plate type heat exchanger 1000 of the present invention absorbs the heat of the engine by the water pump 620 and then flows through the radiator 610 to the outside air And is cooling water passing through the radiator 610 and cooled.

5 and 7, the second heat exchange medium flows through the second inlet pipe 210 in the condensing region A1 and the first subcooled region A2, Then discharged through the second outlet pipe 220, and supplied to the compressor 4000.

The third heat exchange medium flowing through the third inlet pipe 310 is a refrigerant that has passed through the evaporator 3000 of the cooling system and is supercooled by the refrigerant cooled through the evaporator 3000 .

Thus, the plate heat exchanger 1000 of the present invention is firstly supercooled by the second heat exchange medium, which is the cooling water cooled through the radiator 610 after the first heat exchange medium is condensed and gas-liquid separated, Which is cooled by passing through the second heat exchanger 3000, can be supercooled by the second heat exchanger.

Particularly, the plate-type heat exchanger 1000 of the present invention can reduce the load of the compressor 4000 as the supercooling performance becomes higher, increase the efficiency of the entire cooling system, and thereby improve the overall energy efficiency .

In the plate heat exchanger 1000 of the present invention, the condensing region A1, the first subcooling region A2, and the second subcooling region A3 may be formed by a combination of a plurality of plates 400, The configuration of the plates 400 will be described.

9 (a) is a perspective view of the first plate 410, FIG. 9 (b) is a perspective view of the second plate 420, and FIG. 9 (c) is a perspective view of the first partition plate 470.

10 (a) is a perspective view of the third plate 430, FIG. 10 (b) is a perspective view of the fourth plate 440, and FIG. 10 (c) is a perspective view of the second partition plate 480 .

11 (a) is a perspective view of the fifth plate 450, FIG. 11 (b) is a perspective view of the sixth plate 460, and FIG. 11 (c) 11 (d) is a perspective view of the sixth plate 460 in which the second communication hole is closed (402a).

In the plate-type heat exchanger 1000 of the present invention, the condensing region A1 is formed by alternately stacking the first plate 410 and the second plate 420.

The first plate 410 and the second plate 420 may have first joints 408-1 and 408-2 protruding upward or downward in the circumferential direction on one side of the plate 400 in the longitudinal direction A second communication hole 402 in which the first bonding portions 408-1 and 408-2 are formed on the other side of the plate 400 in the longitudinal direction thereof and a second communication hole 402 in which the length of the plate 400 (409-1, 409-2), which are positioned on one side of the first communication hole (401) and protrude in a direction opposite to the protruding direction of the first junctions (408-1, 408-2) A third communication hole 403 in which the second communication hole 402 is formed and a second communication hole 402 formed in the other longitudinal side of the plate 400 to form the second junctions 409-1 and 409-2 And the fourth communication holes 404 are formed in a hollow shape.

At this time, the first plate 410 is formed such that the first joint 408-1 is formed in a downward direction and the second joint 409-12 is formed in an upward direction, and the first inlet pipe 110 The first flow unit 400a flows through the first heat exchange medium.

The second plate 420 is formed such that the first joining portion 408-2 is formed in an upward direction and the second joining portion 409-2 is formed in a downward direction in the opposite direction to the first plate 410, And a second flow portion (400b) through which the heat exchange medium flows.

In the plate type heat exchanger 1000 of the present invention, the first subcooled region A2 is formed by alternately stacking the third plate 430 and the fourth plate 440.

The third plate 430 and the fourth plate 440 may protrude upward or downward in the longitudinal direction on one side of the plate 400 in the same manner as the first plate 410 and the second plate 420 A first communication hole 401 in which the first bonding portions 408-1 and 408-2 are formed in the longitudinal direction of the plate 400 and a second communication hole 401 in which the first bonding portions 408-1 and 408-2 are formed in the longitudinal direction of the plate 400 A second communication hole 402 is formed at one side of the plate 400 in the longitudinal direction and is disposed in parallel with the first communication hole 401 and in a direction opposite to the projecting direction of the first junction 408-1 and 408-2 A third communication hole 403 in which the second bonding portions 409-1 and 409-2 protruding from the first communication hole 402 are formed; And the fourth communication holes 404 in which the second bonding portions 409-1 and 409-2 are formed are hollowed.

At this time, the third plate 430 and the fourth plate 440 have the same shape as the first plate 410 and the second plate 420, the second communication hole is closed (402a) And a fifth communication hole 405 formed at the periphery of the first junction 408-1 and 408-2 is formed on the other side adjacent to the second communication hole 402. [

The fifth communication hole 405 is a portion to which the second connection pipe 520 is connected in a downward direction of the plate-type heat exchanger 1000.

That is, the third plate 430 has the same shape as the first plate 410 in which the first joint 408-1 is formed in the downward direction and the second joint 409-1 is formed in the upward direction And the second communication hole is closed (402a).

After the third plate 430 passes through the gas-liquid separator 500 on the upper side, the first heat exchange medium flowing through the second connection pipe 520 and the fifth communication hole 405 flows Thereby forming a first fluid passage 400a.

The fourth plate 440 is formed in the same shape as the second plate 420 in which the first bonding portion 408-2 is formed in an upward direction and the second bonding portion 409-2 is formed in a downward direction , And the second communication hole is closed (402a).

Like the second plate 420, the fourth plate 440 forms a second flow portion 400b through which the second heat exchange medium flowing through the second inlet pipe 210 flows.

On the other hand, the condensing region A1 and the first subcooled region A2 are partitioned by the first partition plate 470.

The first partition plate 470 has the same shape as the first plate 410 and the first and second communication holes 401a and 402a are closed so that the first heat exchange medium in the condensation region A1 1 subcooled region A2. (See Fig. 9 (c)).

In the plate type heat exchanger 1000 of the present invention, the second subcooled region A3 is formed by alternately stacking the fifth plate 450 and the sixth plate 460.

The fifth plate 450 and the sixth plate 460 may protrude upward or downward in a circumferential direction on one side of the plate 400 in the longitudinal direction of the plate 400 as in the case of the first plate 410 and the second plate 420 A first communication hole 401 in which the first bonding portions 408-1 and 408-2 are formed in the longitudinal direction of the plate 400 and a second communication hole 401 in which the first bonding portions 408-1 and 408-2 are formed in the longitudinal direction of the plate 400 A second communication hole 402 is formed at one side of the plate 400 in the longitudinal direction and is disposed in parallel with the first communication hole 401 and in a direction opposite to the projecting direction of the first junction 408-1 and 408-2 A third communication hole 403 in which the second bonding portions 409-1 and 409-2 protruding from the first communication hole 402 are formed; And the fourth communication holes 404 in which the second bonding portions 409-1 and 409-2 are formed are hollowed.

A fifth communication hole 405 formed at the periphery of the first bonding portions 408-1 and 408-2 is formed on the other side of the plate 400 adjacent to the second communication hole 402, 400 formed in the width direction of the plate 400 so as to partition the area where the second communication hole 402 is formed and the area where the fifth communication hole 405 is formed in the longitudinal direction of the plate 400, 409-1, and 409-2 are further formed with the partitioning portions 406a, 406b projecting convexly or concavely in the same direction.

The dividing sections 406a and 406b are denoted by reference numeral 406a in the upward convex shape and denoted by reference numeral 406b in the downward direction.

The partitioning portions 406a and 406b are formed in a region where the second communication hole 402 is formed in the longitudinal direction of the plate 400 after passing through the first subcooling region A2, And a region where the fifth communication hole 405 is formed (a region where the first heat exchange medium is moved to the first subcooling region A2).

That is, the fifth plate 450 is formed such that the first bonding portion 408-1 is formed in a downward direction, the second bonding portion 409-1 is formed in an upward direction, and the partitioning portion 406a is formed on the upper side As shown in Fig.

The sixth plate 460 is formed such that the first bonding portion 408-2 is formed in an upward direction and the second bonding portion 409-2 is formed in a downward direction, As shown in Fig.

The partition 406a is formed with a first fluid passage 400a through which the first heat exchange medium flows in the upper side of the fifth plate 450 and is joined to the partition 406b of the neighboring plate 400 The third heat exchange medium is partitioned from the sixth plate 460 in the case where the sixth communication hole 402 is formed and the region where the fifth communication hole 405 is formed, The third flow portion 400c through which the third heat exchange medium flows is formed.

At this time, in the plate-type heat exchanger 1000 of the present invention, in the second subcooled region A3, a first communication hole or a second communication hole (not shown) of the fifth plate 450 is provided to control the flow of the first heat exchange medium Or the first communication hole or the second communication hole of the sixth plate 460 may be closed (401a, 402a).

11 (c) shows a state in which the first communication hole 401 of the fifth plate 450 is closed (401a), and is denoted by reference numeral 450 'in order to distinguish it from the fifth plate 450.

11 (d) shows a state in which the second communication hole 402 of the sixth plate 460 is closed (402a), and is denoted by reference numeral 460 'in order to distinguish it from the sixth plate 460.

On the other hand, the first subcooled region (A2) and the second subcooled region (A3) are partitioned by the second partition plate (480).

The second partition plate 480 has the same shape as that of the third plate 430 and the third and fourth communication holes are closed 403a and 404a to form the first subcooled region A2, (The first heat exchange medium after passing through the gas-liquid separator 500) is not transferred to the second subcooled region A3. (See Fig. 10 (c)).

3 to 11, the first communication hole 401 communicates with the first inlet pipe 110 in the upper direction of the plate-type heat exchanger 1000, and the second communication hole 402, The third communication hole 403 is a portion communicating with the second inlet pipe 210 and the third communication hole 403 is a portion communicating with the second connection pipe 510. [ And an outlet pipe 220 communicating with the outlet pipe 220.

The first outlet pipe 120 is connected to the first communication hole 401 and the third communication hole 403 is connected to the third outlet pipe 320 The fourth communication hole 404 is connected to a fourth outlet pipe, and the fifth communication hole 405 is connected to the second connection pipe 520.

In an example shown in the drawing, the first inlet pipe 110, the first outlet pipe 120, the second inlet pipe 120, the second outlet pipe 120, the second outlet pipe 120, and the second outlet pipe 120 are formed to diversify the flows of the first heat exchange medium, the second heat exchange medium, The inlet pipe 210, the second outlet pipe 220, the third inlet pipe 310, the fourth outlet pipe, the first connecting pipe 510, and the second connecting pipe 520 may be connected in various ways .

The plate-type heat exchanger 1000 of the present invention may have a structure in which the first plate 410 to the sixth plate 460, the first partition plate 470, and the second partition plate 480 are used, A1), the first subcooled region A2, and the second subcooled region A3 can be used.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1000: Plate Heat Exchanger
110: first inlet pipe 120: first outlet pipe
210: second inlet pipe 220: second outlet pipe
310: third inlet pipe 320: third outlet pipe
400: plate
400a: first flow section 400b: second flow section
400c: third flow section
401: first communication hole 401a: part where the first communication hole is closed
402: second communication hole 402a: part where the second communication hole is closed
403: third communication hole 403a: part where the third communication hole is closed
404: fourth communication hole 404a: part where the fourth communication hole is closed
405: fifth communication hole
406a, 406b: partition part (406a: convex shape, 406b: concave shape)
408-1: first junction (lower side) 409-1: second junction (upper side)
408-2: first bonding portion (lower side) 409-1: second bonding portion (upper side)
410: first plate 420: second plate
430: third plate 440: fourth plate
450: fifth plate 460: sixth plate
470: first compartment plate
480: second compartment plate
500: gas-liquid separator
510: first connection pipe 520: second connection pipe
A1: Condensation zone
A2: the first supercooled region
A3: second subcooled region
610: Radiator 620: Water pump
2000: Expansion valve
3000: Evaporator
4000: Compressor

Claims (8)

A first inlet pipe 110 through which the first heat exchange medium is introduced and a first outlet pipe 120 through which the first heat exchange medium is introduced; A second inlet pipe 210 through which the second heat exchange medium is introduced and a second outlet pipe 220 through which the second heat exchange medium is introduced; A third inlet pipe 310 through which the third heat exchange medium is introduced and a third outlet pipe 320 through which the third heat exchange medium is introduced; A plurality of stacked layers are stacked to form a first fluid flow portion 400a through which the first heat exchange medium flows, a second fluid flow portion 400b through which the second heat exchange medium flows, and a third fluid flow portion 400c through which the third heat exchange medium flows In a plate-type heat exchanger (1000) including a plate (400)
The plate-type heat exchanger (1000)
And a gas-liquid separator 500 connected to the first connection pipe 510 and the second connection pipe 520 connected to the first fluid passage 400a,
A condensing region A1 in which the first heat exchange medium flowing through the first inlet pipe 110 and the second heat exchange medium flowing through the second inlet pipe 210 exchange heat with each other, A first subcooled region A2 formed below the condensing region A1 and through which the first heat exchange medium and the second heat exchange medium passed through the gas-liquid separator 500 undergo heat exchange; a second subcooled region A2 formed under the first subcooled region A2; And a second subcooled region (A3) in which heat is exchanged between the first heat exchange medium and the third heat exchange medium which have passed through the first subcooled region (A2) are formed in order in the lamination direction of the plates (400) Plate Heat Exchanger.
The method according to claim 1,
The plate-type heat exchanger (1000)
A first communication hole 401 in which a first bonding portion 408-1 and a second bonding portion 408-2 protruding upward or downward are formed on one side of a longitudinal direction of the plate 400, A second communication hole 402 in which the first junctions 408-1 and 408-2 are formed on the other side of the first communication hole 401, A third communication hole 403 in which second bonding portions 409-1 and 409-2 protruding in a direction opposite to the protruding direction of the first bonding portions 408-1 and 408-2 are formed, A fourth communication hole 404 is formed on the other side of the longitudinal direction in parallel with the second communication hole 402 and in which the second junctions 409-1 and 409-2 are formed,
The first plate 410 and the second plate 408-1 are formed in a downward direction and the second joint 409-1 is formed in an upward direction, And a second plate (420) formed with the second joint (409-2) in a downward direction,
Wherein the condensing region (A1) is formed by alternately stacking the first plate (410) and the second plate (420).
3. The method of claim 2,
The plate-type heat exchanger (1000)
The first plate 410 and the second plate 420 have the same shape,
The second communication hole is closed 402a and the first bonding portions 408-1 and 408-2 are formed on the other side of the plate 400 adjacent to the second communication hole 402 5 communication holes 405 are further formed,
The third plate 430, in which the first joint 408-1 is formed in the downward direction and the second joint 409-1 is formed in the upward direction, and the first joint 408-2, And a fourth plate (440) formed with the second bonding portion (409-2) in a downward direction,
Wherein the first subcooled region (A2) is formed by alternately stacking the third plate (430) and the fourth plate (440).
The method of claim 3,
The plate 400
The first plate 410 and the second plate 420 have the same shape,
A fifth communication hole 405 in which the first bonding portions 408-1 and 408-2 are formed on the other side of the plate 400 adjacent to the second communication hole 402, Is formed in the width direction of the plate 400 so as to partition a region where the second communication hole 402 is formed in the longitudinal direction of the plate 400 and a region where the fifth communication hole 405 is formed, 406b protruding in the same direction as the convex or concave portions 406a, 409b are formed,
A fifth plate 450 in which the first bonding portion 408-1 is formed in a downward direction and the second bonding portion 409-1 is formed in an upward direction and the partition portion 406a is convexly formed, And a sixth plate 460 in which the first bonding portion 408-2 is formed in an upward direction and the second bonding portion 409-2 is formed in a downward direction and the partition portion 406b is formed concavely,
Wherein the second subcooled region (A3) is formed by alternately stacking the fifth plate (450) and the fifth plate (450).
The method of claim 3,
The plate heat exchanger 1000 closes the first and second communication holes 401a and 402a of the first plate 410 to partition the condensing region A1 and the first subcooled region A2 And a first compartment plate (470).
5. The method of claim 4,
The plate-type heat exchanger 1000 is configured such that the third communication hole and the fourth communication hole of the third plate 430 are closed (403, 404) so as to partition the first subcooled region (A2) and the second sub- And a second partition plate (480) formed on the second partition plate (480).
5. The method of claim 4,
The plate heat exchanger 1000 closes the first communication holes of the fifth plate 450 and the sixth plate 460 to block the flow of the first heat exchange medium in the stacking direction of the plate 400 And the second communication hole is closed (402a).
8. The method according to any one of claims 1 to 7,
The plate-type heat exchanger (1000)
The first heat exchange medium is a refrigerant that has passed through the compressor 4000,
The second heat exchange medium is cooling water cooled through the radiator 610,
And the third heat exchange medium is a refrigerant before passing through the compressor (4000) after passing through the evaporator (3000).

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