Three-medium heat exchanger and processing method thereof

Abstract

The present application relates to heat exchange technical field, especially to a kind of three medium heat exchanger and its processing method, including first manifold, second manifold, a plurality of parallel and keep spacing arrangement first heat exchange tube and second heat exchange tube, the first manifold is by manifold part and the combined structure of first flow distribution plate, the first heat exchange tube with the medium passage of the first manifold corresponding communication, still include fluid chamber, second flow distribution plate, the first manifold, second flow distribution plate sequentially parallel, fluid chamber is welded or crimped with second flow distribution plate, combined to form second manifold, the second heat exchange tube with the medium passage of the second manifold corresponding communication, constitute three medium heat exchanger.The structure of the present application can reduce the volume of heat exchanger, to cope with the scene of small space using three medium heat exchanger.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchange, in particular to a three-medium heat exchanger and a processing method thereof. BACKGROUND

[0002] The three-medium heat exchanger is a heat exchange device capable of realizing independent or combined heat exchange between three kinds of media, i.e., refrigerant, carrier refrigerant and air; according to the temperature difference of the three kinds of media, various heat exchange modes can be realized, such as refrigerant-air, refrigerant-carrier refrigerant, carrier refrigerant-carrier refrigerant, carrier refrigerant-air, refrigerant-(carrier refrigerant and air), (refrigerant and carrier refrigerant)-air, etc.; with the gradual maturity of the technology, it will play a key role in many technical fields such as automobiles, electronics, air conditioners, chemical industry, medical treatment, etc.

[0003] At present, when the three-medium heat exchanger faces the scene of being used as an air conditioner indoor unit which needs to be used in a small space, especially when the parallel flow flat tube is vertically placed, the volume of the existing technology's distribution flow device is too large, and it may even occupy two-thirds of the entire windward area, which directly leads to insufficient heat exchange of the air conditioner indoor unit and inability to use.

[0004] In summary, it is necessary to further explore the structure of the three-medium heat exchanger which can reduce the volume of the distribution flow device while ensuring high pressure-bearing and high flow uniformity. SUMMARY

[0005] The present application aims to disclose a three-medium heat exchanger, which aims to solve the problem of the large volume of the distribution flow device with two medium channels in the prior art, and to reduce the volume of the heat exchanger while ensuring high pressure-bearing and high flow uniformity, so as to cope with the scene of using the three-medium heat exchanger in a small space.

[0006] The present application also provides a processing method of the three-medium heat exchanger, which is convenient for processing and manufacturing the aforementioned three-medium heat exchanger, has low cost and high reliability.

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0008] A three-medium heat exchanger comprises a first manifold and a second manifold, and further comprises a plurality of first heat exchange tubes and a plurality of second heat exchange tubes arranged in parallel and at intervals, the first manifold is a combined structure of a manifold part and a first flow distribution plate, the manifold part is provided with an open surface and at least one fluid passage, the open surface is provided with a plurality of flow distribution small holes communicating with the fluid passage, the first flow distribution plate is provided with a brazing surface with a solder layer, the brazing surface is provided with a plurality of concave flow distribution cavities, the bottom of each flow distribution cavity is provided with a first heat exchange tube insertion hole, the first heat exchange tube is inserted and brazed in the first heat exchange tube insertion hole, the heat exchange tube and the flow distribution cavity are in communication, the open surface and the brazing surface are bonded and brazed, the flow distribution cavities are in communication with the fluid passage through the flow distribution small holes, the second manifold comprises a fluid chamber and a second flow distribution plate, the second flow distribution plate is provided with a plurality of second heat exchange tube insertion holes, the first manifold and the second flow distribution plate are arranged in parallel in sequence, and the fluid chamber and the second flow distribution plate are connected by welding or pressing to form a closed cavity structure for the second fluid manifold.

[0009] The second heat exchange tube is inserted and brazed in the second heat exchange tube insertion hole, and the second heat exchange tube is in communication with the fluid chamber; the first heat exchange tube is in corresponding communication with the medium passage of the first manifold, and the second heat exchange tube is in corresponding communication with the medium passage of the second manifold, so as to form the three-medium heat exchanger.

[0010] Further, the second flow distribution plate is further provided with a plurality of first heat exchange tube through holes arranged in parallel, and the first heat exchange tube through holes and the second heat exchange tube insertion holes are alternately arranged on the second flow distribution plate.

[0011] Preferably, the first heat exchange tube through holes are coaxial with the first heat exchange tube insertion holes and equal in number, and the hole diameter of the first heat exchange tube through holes is not less than the hole diameter of the first heat exchange tube insertion holes.

[0012] Preferably, the manifold part and the first flow distribution plate are both in the fluid chamber, and the first manifold and the second manifold form an inner-outer double passage structure.

[0013] Optionally, the first flow distribution plate is arranged in the fluid chamber, and the manifold part is arranged outside the fluid chamber, so that the first manifold and the second manifold form a side-by-side double passage structure.

[0014] Preferably, the manifold part is a parallel flow flat tube with a plurality of channels, and each channel is provided with one or more flow distribution small holes on the same wall surface of the manifold part.

[0015] Preferably, the second flow equalizing plate is provided with a mounting groove facing the fluid chamber direction, and the second heat exchange tube insertion hole and the first heat exchange tube through hole are formed in parallel on the bottom of the mounting groove; the one side heat exchange surface of the first heat exchange tube and the one side heat exchange surface of the second heat exchange tube are attached to each other along the fluid flow direction, thereby forming a structure in which the adjacent heat exchange surfaces of the two flat tubes in a tube group are attached integrally and the fluids are isolated from each other.

[0016] Optionally, the second flow equalizing plate is provided with a mounting groove facing the fluid chamber direction, and the second heat exchange tube insertion hole is formed in the bottom of the mounting groove; the first heat exchange tube through hole and the second heat exchange tube insertion hole are arranged at intervals on the second flow equalizing plate.

[0017] The one side heat exchange surface of the first heat exchange tube and the one side heat exchange surface of the second heat exchange tube are arranged at intervals or partially attached along the flow direction of the heat exchange medium.

[0018] Preferably, the first flow equalizing plate comprises a plug-in plate and a mounting plate attached to each other, the plug-in plate forms a fitting surface and a first heat exchange tube insertion hole, the first heat exchange tube is plugged into and brazed in the first heat exchange tube insertion hole through the fitting surface, and the mounting plate forms a brazing surface and a connecting hole penetrating through the mounting plate.

[0019] The side port of the first heat exchange tube insertion hole away from the fitting surface extends towards the direction away from the first flow equalizing plate to form an annular mounting protrusion.

[0020] The two ports of the connecting hole are arranged flush with the two surfaces of the mounting plate respectively, the mounting protrusion is plugged into the connecting hole, and the mounting protrusion does not protrude beyond the brazing surface; or, the side port of the connecting hole away from the brazing surface extends towards the direction away from the mounting plate to form an annular connecting protrusion, the mounting protrusion and the connecting protrusion are sleeved with each other, and the mounting protrusion does not protrude beyond the brazing surface.

[0021] A processing method of a three-medium heat exchanger, for batch production of the three-medium heat exchanger, at least comprising the following steps:

[0022] Step 1: using electric spark discharge punching or mechanical drilling and milling processes to punch flow equalizing small holes on the opening surface of the manifold part produced by the extrusion profile process; using a drawing stamping process to complete the forming of the flow equalizing cavity and the first heat exchange tube insertion hole on the first flow equalizing plate, and using a drawing stamping process to complete the forming of the first heat exchange tube through hole and the second heat exchange tube insertion hole on the second flow equalizing plate;

[0023] Step 2, each of the first heat exchange pipe is inserted into a first heat exchange pipe socket through a first heat exchange pipe via, and each of the second heat exchange pipe is inserted into a second heat exchange pipe socket, and the two heat exchange pipes are arranged in mutual adhesion, partial adhesion or interval according to process requirements;

[0024] Step 3, the opening surface of the manifold pipe of the first manifold is adhered to the brazing surface of the first flow distribution plate, and the first manifold and the second flow distribution plate are arranged in parallel in sequence to complete the assembly of the heat exchanger;

[0025] Step 4, the assembled heat exchanger is placed into a brazing furnace to complete brazing sealing;

[0026] Step 5, the fluid chamber is welded or crimped to the second flow distribution plate to complete the assembly of the heat exchanger.

[0027] A heat pump air conditioning system comprises one or more heat exchangers, wherein at least one heat exchanger is the three-medium heat exchanger described in the first aspect of the application.

[0028] Based on the above technical solution, the application has the following advantages:

[0029] (1) The three-medium heat exchanger provided by the application can significantly reduce the volume of the manifold, reduce the charging amount of the circulating working medium, save processing materials, and cope with the scene of using the three-medium heat exchanger in a small space;

[0030] (2) The three-medium heat exchanger provided by the application is characterized in that the flow channel group flow channel openings in the manifold are arranged above the plurality of concave liquid distribution cavities of the flow distribution plate, the flow of the heat exchange medium entering the liquid distribution cavity is accurately adjusted through the different sizes and numbers of the opening holes of the flow channel openings, and efficient heat exchange between the various heat exchange media inside and outside the tube is facilitated;

[0031] (3) The three-medium heat exchanger provided by the application can realize the distribution of two media in the flat tube, ensure the uniform distribution of the media into the corresponding flat tube, and complete the direct heat exchange between the three media in one heat exchanger;

[0032] (4) The processing method of the three-medium heat exchanger provided by the application can adopt a brazing process, and the manifold pipe, the flow distribution plate, the heat exchange pipe and the fin are directly brazed in the furnace for batch processing, which is high in precision, low in cost and good in sealing reliability. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor.

[0034] Figure 1 Figure 1 is a schematic diagram of the overall structure of a three-medium heat exchanger according to the present application;

[0035] Figure 2 Figure 2 is a schematic diagram of the structure of the first flow equalization plate in one embodiment of the present application. Figure 1 Figure 3 is a schematic diagram of the structure of the first flow equalization plate in one embodiment of the present application.

[0036] Figure 3 Figure 4 is a schematic diagram of the structure of the first flow equalization plate in one embodiment of the present application.

[0037] Reference signs:

[0038] 1 - first manifold; 10 - manifold portion; 100 - open surface;

[0039] 101 - fluid passage; 102 - flow equalization aperture; 11 - first flow equalization plate;

[0040] 110 - brazing surface; 111 - flow equalization cavity; 112 - first heat exchange tube insertion hole;

[0041] 2 - second manifold; 20 - fluid chamber; 21 - second flow equalization plate;

[0042] 210 - second heat exchange tube insertion hole; 211 - first heat exchange tube through hole; 31 - first heat exchange tube;

[0043] 32 - second heat exchange tube; 24 - insertion plate; 241 - mating surface;

[0044] 25 - mounting plate; 251 - connecting hole; 252 - connecting protrusion. DETAILED DESCRIPTION

[0045] For the purpose of clearly expressing the technical solutions and technical advantages of the present application, the technical solutions in the present application will be further clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0046] The present application provides a three-medium heat exchanger embodiment, as shown in Figure 1, which comprises a first manifold 1 and a second manifold 2, and further comprises a plurality of first heat exchange tubes 31 and second heat exchange tubes 32 arranged in parallel and at a distance. Figure 1 Figure 2 ​As shown, the first manifold 1 is a combined structure composed of a manifold part 10 and a first flow distribution plate 11. The manifold part 10 is provided with an open surface 100 and at least one fluid passage 101. The open surface 100 is provided with a plurality of flow distribution holes 102 communicating with the fluid passage 101. The first flow distribution plate 11 has a soldering surface 110 provided with a solder layer. The soldering surface 110 is provided with a plurality of concave flow distribution cavities 111. Each flow distribution cavity 111 is provided with a first heat exchange tube insertion hole 112. The first heat exchange tube 31 is inserted and soldered in the first heat exchange tube insertion hole 112. The medium tube and the flow distribution cavity 111 are in communication. The open surface 100 and the soldering surface 110 are soldered together. The flow distribution cavity 111 communicates with the fluid passage 101 through one or a group of flow distribution holes 102.

[0047] It should be explained that the above-mentioned "each flow distribution cavity 111 communicates with the fluid passage 101 through one or a group of flow distribution holes 102" means that when the first flow distribution plate 11 is installed on the manifold part 10, each flow distribution cavity 111 can communicate with one, two or a plurality of flow distribution holes 102, i.e. the number of flow distribution holes 102 corresponding to a single flow distribution cavity 111 on the open surface 100 can be one, two or a plurality.

[0048] In the structure of the embodiment, the second manifold 2 includes a fluid chamber 20 and a second flow distribution plate 21. The second flow distribution plate 21 is provided with a plurality of second heat exchange tube insertion holes 210. The first manifold 1 and the second flow distribution plate 21 are in sequence and parallel. The fluid chamber 20 and the second flow distribution plate 21 are welded or crimped to realize connection. After combination, they form a closed cavity structure for the second fluid manifold. The second flow distribution plate 21 is also provided with a plurality of first heat exchange tube through holes 211 arranged in parallel. The first heat exchange tube through holes 211 are coaxially corresponding to the first heat exchange tube insertion holes 112 and equal in number. The first heat exchange tube through holes 211 and the second heat exchange tube insertion holes 112 are arranged alternately. The first heat exchange tube 31 communicates with the medium passage of the first manifold 1 in correspondence. The second heat exchange tube 32 communicates with the medium passage of the second manifold 2 in correspondence, forming a three-medium heat exchanger.

[0049] In the structure of the embodiment, the first heat exchange tube through hole 211 is coaxial with the first heat exchange tube insertion hole 112. The aperture of the first heat exchange tube through hole 211 is not less than the aperture of the first heat exchange tube insertion hole 112.

[0050] The second flow equalization plate 21 is provided with an installation groove facing the fluid chamber 20. The second heat exchange tube insertion hole 112 and the first heat exchange tube through hole 211 are formed parallel to each other at the bottom of the installation groove. The heat exchange surface of the first heat exchange tube 31 and the heat exchange surface of the second heat exchange tube 32 are attached to each other along the fluid flow direction, forming a structure in which the adjacent heat exchange surfaces of two flat tubes in a tube group are attached together and the fluids are isolated from each other.

[0051] In this embodiment, both the manifold section 10 and the first flow equalization plate 11 are located within the fluid chamber 20, and the first flow divider 1 and the second flow divider 2 constitute an inner and outer dual-channel structure.

[0052] In the structure of this embodiment, the manifold section 10 is a parallel flow flat tube with a multi-channel structure, and each channel has one or more flow equalization holes on the same wall surface of the manifold section 10.

[0053] In another embodiment of the present invention, the second flow equalization plate 21 is provided with a mounting groove facing the fluid chamber 20, and the second heat exchange tube insertion hole 112 is formed at the bottom of the mounting groove. The first heat exchange tube through hole 211 and the second heat exchange tube insertion hole 112 are spaced apart on the second flow equalization plate 21.

[0054] Unlike the previous embodiment, in this embodiment, the first heat exchange tube through hole 211 and the second heat exchange tube insertion hole 112 are not adjacent to each other on the mounting groove, but are spaced apart on the second flow equalization plate 21 along the length direction of the second flow equalization plate 21.

[0055] like Figure 3 As shown, in some embodiments, the first flow equalization plate 11 includes a plug-in plate 24 and a mounting plate 25 that are attached and connected to each other. The plug-in plate 24 forms a mating surface 241 and a first heat exchange tube insertion hole 112. The first heat exchange tube 31 is inserted into and brazed in the first heat exchange tube insertion hole 112 through the mating surface 241. The mounting plate 25 forms the brazing surface 110 and a connecting hole 251 that passes through the mounting plate 25.

[0056] The side port of the first heat exchange tube insertion hole 112 away from the mating surface 21 extends in a direction away from the first flow equalization plate 11 to form an annular mounting protrusion.

[0057] The two ports of the connecting hole 251 are flush with the two surfaces of the mounting plate 25, the mounting protrusion is inserted into the connecting hole 251, and the mounting protrusion does not protrude from the brazing surface 110; or the side port of the connecting hole 251 away from the brazing surface 110 extends away from the mounting plate 25 to form a ring-shaped connecting protrusion 252, the mounting protrusion and the connecting protrusion 252 are sleeved with each other, and the mounting protrusion does not protrude from the brazing surface 110.

[0058] Compared with the heat exchanger in the related art, the three-medium heat exchanger has the following advantages: the volume of the fluid passage 101 can be reduced and the pressure-bearing capacity thereof can be increased, and the filling amount of the circulating working medium can be reduced, thereby reducing the risk of environmental pollution; in addition, since the volume of the fluid passage 101 can be reduced, the occupied volume of the three-medium heat exchanger can be reduced, so that the three-medium heat exchanger can meet the use requirement of a small space, thereby expanding the application range thereof.

[0059] For the convenience of understanding, the difference between the three-medium heat exchanger and the existing heat exchanger will be described below.

[0060] As disclosed in Chinese Patent CN210051186U, a three-medium heat exchanger has a structure that directly leads to the height of the distributor being almost three times the maximum width of the matched flat tube; Chinese Patent CN110530177A discloses a three-medium heat exchanger, CN113606961A discloses a three-medium heat exchanger with an auxiliary heat exchange structure, and CN216115589U discloses a distributor structure of a multi-medium heat exchanger. The distributors of the three patents are different from the early welding scheme, which avoids excessive heat capacity at the intermediate partition plate and effectively improves the welding quality. However, the distributor structures of the three patents are essentially similar, all of which select a hollow cylinder with a circular or "D" shaped cross-section as the high-pressure side distributor, and use the plug-in method for brazing, which causes the height to be still greater than the maximum width of the matched flat tube. Optimization based on such structures cannot avoid the limitation that the first cavity after plugging is greater than the maximum width of the flat tube, and the structure of the three-medium heat exchanger still cannot meet the use requirement of a small space, and the heat exchanger structure still needs to be improved.

[0061] It should be noted that the structure of the heat exchanger in the related art has limitations in structure and processing (i.e., only holes can be punched on the pipe of the distributor to realize the welding of the heat exchange tube), which leads to the fact that the hole diameter of the existing distributor must be greater than the maximum width of the flat tube, otherwise the punching and welding requirements of the heat exchange tube cannot be met.

[0062] The distribution structure of the three-medium heat exchanger divides the first distribution flow device 1 into two independent distribution pipe parts 10 and first flow equalizing plates 11, realizes the flow direction of the heat exchange medium through the distribution pipe parts 10, and realizes the installation of the heat exchange pipes through the first flow equalizing plates 11, so that the distribution structure of the present application does not need to punch holes directly on the fluid channel 101, and the inner diameter of the fluid channel 101 can be designed to be smaller, so as to reduce its volume, increase its pressure bearing capacity, and reduce the filling amount of the circulating working medium, thereby reducing the risk of environmental pollution. In addition, since the first distribution flow device 1 can be designed to be smaller, the overall size of the three-medium heat exchanger can be designed to be smaller, thereby meeting the use requirements of the three-medium heat exchanger in a small space.

[0063] The present application also provides a processing method of a three-medium heat exchanger, which is used for batch production of the three-medium heat exchanger and at least includes the following steps:

[0064] Step 1: The flow equalizing small holes 102 are punched on the opening surface 100 of the distribution pipe part 1 produced by the extrusion profile process by using the electric spark discharge punching or mechanical drilling and milling process; the concave flow equalizing cavity 111 and the first heat exchange pipe insertion hole 112 are formed on the first flow equalizing plate 11 by using the stretching stamping process on the plate material with a solder layer, and the first heat exchange pipe through hole 211 and the second heat exchange pipe insertion hole 210 are formed on the second flow equalizing plate 21 by using the stretching stamping process;

[0065] Step 2: Each of the first heat exchange pipes 31 is inserted into one of the first heat exchange pipe insertion holes 112 through the first heat exchange pipe through hole 211, each of the second heat exchange pipes 32 is inserted into the second heat exchange pipe insertion hole 210, and the two heat exchange pipes are arranged in mutual adhesion, partial adhesion or interval according to the process requirements;

[0066] Step 3: The opening surface 100 of the distribution pipe part 10 of the first distribution flow device 1 is adhered to the brazing surface 110 of the first flow equalizing plate 11, and the first distribution flow device 1 and the second flow equalizing plate 21 are arranged in parallel in sequence to complete the assembly of the heat exchanger;

[0067] Step 4: The assembled heat exchanger is placed in a brazing furnace to complete the brazing sealing;

[0068] Step 5: The fluid chamber 20 is welded or pressed to the second flow equalizing plate 21 to complete the assembly of the heat exchanger.

[0069] The present application also provides a heat pump air conditioning system, which includes one or more heat exchangers, and at least one of the heat exchangers is the three-medium heat exchanger structure described in any of the embodiments.

[0070] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; and although the present application has been described in detail with reference to the foregoing embodiments, it should be appreciated by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A triple medium heat exchanger comprising a first manifold (1) and a second manifold (2), and further comprising a plurality of first heat exchange tubes (31) and a plurality of second heat exchange tubes (32) arranged in parallel and at intervals, characterized in that: the first manifold (1) comprises a manifold section (10) and a first flow distribution plate (11), the manifold section (10) is a parallel flow flat tube with a plurality of holes, the manifold section (10) is provided with an open surface (100) and at least one fluid passage (101), the open surface (100) is provided with a plurality of flow distribution orifices (102) communicating with the fluid passage (101), and the first flow distribution plate (11) has a brazing surface (110) provided with a solder layer, the brazing surface (110) is provided with a plurality of concave flow distribution cavities (111), and the bottom of each flow distribution cavity (111) is provided with a first heat exchange tube insertion hole (112); the first heat exchange tube (31) is inserted and brazed in the first heat exchange tube insertion hole (112), the first heat exchange tube (31) communicates with the flow distribution cavity (111), the open surface (100) is attached to and brazed with the brazing surface (110), and each flow distribution cavity (111) communicates with the fluid passage (101) through a plurality of flow distribution orifices (102); the second manifold (2) comprises a fluid chamber (20) and a second flow distribution plate (21), the second flow distribution plate (21) is provided with a plurality of second heat exchange tube insertion holes (210), the first manifold (1) and the second flow distribution plate (21) are arranged in parallel in sequence, and the fluid chamber (20) and the second flow distribution plate (21) are connected by welding or pressing to form a closed cavity structure; the second heat exchange tube (32) is inserted and brazed in the second heat exchange tube insertion hole (210), and the second heat exchange tube (32) communicates with the fluid chamber (20) to form the triple medium heat exchanger; the first flow distribution plate (11) comprises an insertion plate (24) and a mounting plate (25) attached to and connected with each other, the insertion plate (24) forms a mating surface (241) and a first heat exchange tube insertion hole (112), the first heat exchange tube (31) is inserted and brazed in the first heat exchange tube insertion hole (112) through the mating surface (241), and the mounting plate (25) forms the brazing surface (110) and a connecting hole (251) penetrating through the mounting plate (25); the second flow distribution plate (21) is further provided with a plurality of first heat exchange tube through holes (211) arranged in parallel, and the first heat exchange tube through holes (211) and the second heat exchange tube insertion holes (210) are arranged alternately on the second flow distribution plate (21); the first heat exchange tube through holes (211) are coaxial with the first heat exchange tube insertion holes (112) and equal in number, and the hole diameter of the first heat exchange tube through holes (211) is not less than the hole diameter of the first heat exchange tube insertion holes (112). ​ ​ ​ ​ ​ 2. The triple-matrix heat exchanger according to claim 1, characterized in that: ​ 3. The triple-matrix heat exchanger according to claim 2, characterized in that: ​ 4. The triple-matrix heat exchanger according to any one of claims 1 to 3, characterized in that: The first flow distributor (1) and the second flow distributor (2) are arranged in an inner-outer double channel structure.

5. The triple-matrix heat exchanger according to any one of claims 1 to 3, characterized in that: The first flow distributor (1) and the second flow distributor (2) are arranged in a side-by-side double channel structure.

6. The triple-matrix heat exchanger according to any one of claims 1 to 3, characterized in that The orifices of the flow distributor (10) are arranged on the same wall surface of the flow distributor (10).

7. The three-medium heat exchanger according to any one of claims 2 or 3, characterized in that: The second flow distributor (21) is provided with a mounting groove facing the fluid chamber, and the second heat exchange tube insertion hole and the first heat exchange tube through hole are formed in parallel on the bottom of the mounting groove. The one side heat exchange surface of the first heat exchange tube (31) and the one side heat exchange surface of the second heat exchange tube (32) are arranged in parallel along the flow direction of the heat exchange medium.

8. The three-medium heat exchanger according to any one of claims 2 or 3, characterized in that: The second flow distributor (21) is provided with a mounting groove facing the fluid chamber, and the second heat exchange tube insertion hole is formed in the bottom of the mounting groove; and the first heat exchange tube through hole and the second heat exchange tube insertion hole are arranged in parallel on the second flow distributor. The one side heat exchange surface of the first heat exchange tube (31) and the one side heat exchange surface of the second heat exchange tube (32) are arranged in parallel along the flow direction of the heat exchange medium.

9. The triple-matrix heat exchanger according to any one of claims 1 to 3, characterized in that The side port of the first heat exchange tube insertion hole (112) away from the mating surface (241) extends away from the first flow distributor (11) to form an annular mounting protrusion; The two ports of the connecting hole (251) are arranged flush with the two surfaces of the mounting plate (25), the mounting protrusion is inserted into the connecting hole (251), and the mounting protrusion does not protrude beyond the brazing surface (110); or, the side port of the connecting hole (251) away from the brazing surface (110) extends away from the mounting plate (25) to form an annular connecting protrusion (252), the mounting protrusion and the connecting protrusion (252) are arranged in a sleeved manner, and the mounting protrusion does not protrude beyond the brazing surface (110).

10. A processing method of a triple-mediump heat exchanger, for mass production of the triple-mediump heat exchanger according to any one of claims 1 to 9, characterized in that: At least the following steps are included: Step 1: using electric spark discharge drilling or mechanical drilling and milling processes to drill flow distribution small holes (102) on the orifice surface (100) of the flow distributor (10) produced by the extrusion profile process; using a stretching stamping process to form flow distribution cavities (111) and first heat exchange tube insertion holes (112) on the first flow distributor (11) on the solder layer plate, and using a stretching stamping process to form first heat exchange tube through holes (211) and second heat exchange tube insertion holes (210) on the second flow distributor (21); Step 2, each of the first heat exchange pipe (31) through the first heat exchange pipe via (211) respectively inserted in a first heat exchange pipe jack (112), each of the second heat exchange pipe (32) respectively inserted in the second heat exchange pipe jack (210), and according to the process requirements, the two heat exchange pipes are adhered, partially adhered or spaced apart; Step 3, the opening surface (100) of the first distributor (1) is adhered to the brazing surface (110) of the first flow distribution plate (11), and the first distributor (1) and the second flow distribution plate (21) are sequentially arranged in parallel to complete the assembly of the heat exchanger; Step 4, the assembled heat exchanger is put into a brazing furnace to complete the brazing sealing; Step 5, the fluid chamber (20) and the second flow distribution plate (21) are welded or crimped to complete the assembly of the heat exchanger.

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