Three-medium heat exchanger

Abstract

The utility model relates to the technical field of heat exchange equipment, in particular to a three-medium heat exchanger which comprises a multi-channel pipe structure and a flow dividing and collecting structure. A first channel and a second channel which are isolated from each other are formed in the multi-channel pipe structure, the first channel and the second channel are thermally coupled, and a first through hole and a second through hole which are used for fluid to enter and exit are formed in the wall face of the first channel and the wall face of the second channel. The flow dividing and collecting structure is provided with a first flow dividing and collecting pipe and a second flow dividing and collecting pipe which are isolated from each other, the first flow dividing and collecting pipe is communicated with each first through hole, the second flow dividing and collecting pipe is communicated with each second through hole, and the first flow dividing and collecting pipe and the second flow dividing and collecting pipe are provided with a first connector and a second connector which are used for fluid inflow and outflow. According to the three-medium heat exchanger, the function that every two of three media exchange heat and the function that the three media exchange heat at the same time are achieved, filth blockage is not prone to occurring when the three media exchange heat with the third medium, and the heat exchange reliability and the heat exchange effect can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment, in particular to a three-medium heat exchanger. Background Art

[0002] Heat exchangers are widely used in industrial production. With the progress of global industrialization, their market demand is also growing. Most existing heat exchangers can only achieve heat exchange between two fluids. When heat exchange involves more than three fluids, multiple sets of heat exchangers are required to meet the heat exchange requirements. At present, heat exchangers involving three media can only achieve heat exchange between the first medium and the second medium, and between the second medium and the third medium, but cannot achieve heat exchange between the first medium and the third medium, resulting in the development of its application scenarios being limited.

[0003] Therefore, how to achieve heat exchange between any two of the three fluids and heat exchange between the three fluids at the same time and improve the heat exchange reliability and heat exchange effect is a problem that needs to be solved urgently. Utility Model Content

[0004] The utility model provides a three-medium heat exchanger, which is used to solve the problem in the prior art of how to realize heat exchange between any two of three fluids and heat exchange between the three fluids simultaneously, thereby improving heat exchange reliability and heat exchange effect.

[0005] The utility model provides a three-medium heat exchanger, including a plurality of multi-channel tube structures and a flow distribution structure;

[0006] The multi-channel tube structure is formed with a first channel and a second channel isolated from each other, and the first channel and the second channel are thermally coupled, a first through hole for fluid to enter and exit is provided on the wall surface of the first channel, and a second through hole for fluid to enter and exit is provided on the wall surface of the second channel, the first channel is used to pass a first medium, and the second channel is used to pass a second medium, and the first channel and the second channel are at least partially exposed to a third medium to be thermally coupled with the third medium;

[0007] The flow distribution structure is formed with a first flow distribution pipe and a second flow distribution pipe isolated from each other, the first flow distribution pipe is connected to each of the first through holes, the second flow distribution pipe is connected to each of the second through holes, the first flow distribution pipe is provided with a first interface for fluid inlet and outlet, and the second flow distribution pipe is provided with a second interface for fluid inlet and outlet.

[0008] The three-medium heat exchanger provided by the utility model further includes: heat dissipation fins, and the heat dissipation fins are arranged on the outer wall of the multi-channel tube structure.

[0009] According to the three-medium heat exchanger provided by the utility model, the second through hole is located on the side wall surface of the second channel, and the first through hole is located on the side wall surface of the first channel.

[0010] According to the three-medium heat exchanger provided by the utility model, the second through hole is located on the end surface of the second channel, and the first through hole is located on the side wall surface of the first channel.

[0011] According to the three-medium heat exchanger provided by the utility model, the first sub-manifold comprises: an integrated structure consisting of a first cavity and a first buckle plate, a through hole is formed on the first buckle plate, the multi-channel tube structure passes through the corresponding through hole, and the first through hole is connected to the first cavity;

[0012] The second sub-manifold is disposed in a space formed by the first cavity and the first pinch plate, and is isolated from the first cavity.

[0013] According to the three-medium heat exchanger provided by the utility model, the first sub-manifold and the second sub-manifold are independent of each other, and a gap is formed between the first sub-manifold and the second sub-manifold.

[0014] According to the three-medium heat exchanger provided by the utility model, the flow distribution structure is a cylindrical structure, and the first flow distribution pipe and the second flow distribution pipe are an integrated structure, and a partition along the height direction is provided between the first flow distribution pipe and the second flow distribution pipe.

[0015] According to the three-medium heat exchanger provided by the utility model, a plurality of multi-channel tube structures are arranged in parallel;

[0016] The first sub-manifold is located at two ends of the multi-channel tube structure, and each of the first through holes is located inside the first sub-manifold;

[0017] The second sub-manifold comprises a bent tube, and the bent tube is connected between the second through holes of two adjacent second channels, so that a plurality of second channels are connected end to end in sequence through the bent tube.

[0018] According to the three-medium heat exchanger provided by the utility model, the multi-channel tube structure is arranged in multiple rows, and multiple multi-channel tube structures are arranged in parallel in each row. The first sub-collector of the flow distribution structure is connected to the first through hole of each multi-channel tube structure, and the second sub-collector is connected to the second through hole of each multi-channel tube structure.

[0019] According to the three-medium heat exchanger provided by the utility model, the multi-channel tube structure is arranged in multiple rows, and multiple multi-channel tube structures are arranged in parallel in each row;

[0020] The first sub-manifold is located at both ends of the plurality of multi-channel tube structures, and each of the first through holes is located inside the first sub-manifold;

[0021] The second sub-manifold comprises a plurality of bent tubes, wherein the bent tubes are connected between the second through holes of two adjacent second channels in each row of the multi-channel tube structure, so that the plurality of second channels are connected end to end in sequence through the bent tubes;

[0022] The multiple rows of the multi-channel tube structures are connected in series or in parallel via the second through holes of the multi-channel tube structures at the head and the tail of each row.

[0023] The utility model provides a three-medium heat exchanger, which includes: a multi-channel tube structure and a flow distribution structure; the multi-channel tube structure is formed with a first channel and a second channel isolated from each other, and the first channel and the second channel are thermally coupled, a first through hole for fluid in and out is provided on the wall of the first channel, a second through hole for fluid in and out is provided on the wall of the second channel, the first channel is used to pass the first medium, the second channel is used to pass the second medium, the first channel and the second channel are at least partially exposed to the third medium to be thermally coupled with the third medium; the flow distribution structure is formed with a first sub-collector and a second sub-collector isolated from each other, the first sub-collector is connected to each first through hole, the second sub-collector is connected to each second through hole, the first sub-collector is provided with a first interface for fluid in and out, and the second sub-collector is provided with a second interface for fluid in and out. The utility model provides a three-medium heat exchanger, which realizes the functions of heat exchange between two and three media and heat exchange between the three media at the same time, and is not easy to get dirty and blocked when exchanging heat with the third medium, thereby improving the heat exchange reliability and heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 It is a structural schematic diagram of a multi-channel tube structure provided in one embodiment of the utility model;

[0026] Figure 2 It is a structural schematic diagram of a multi-channel tube structure (side openings) with heat dissipation fins provided in one embodiment of the utility model;

[0027] Figure 3 It is a structural schematic diagram of a multi-channel tube structure (side openings and end openings) with heat dissipation fins provided in one embodiment of the utility model;

[0028] Figure 4 It is a structural schematic diagram of a multi-channel tube structure provided in one embodiment of the utility model;

[0029] Figure 5 It is a schematic diagram of the overall structure of a three-medium heat exchanger provided in one embodiment of the utility model;

[0030] Figure 6 It is a structural exploded view of a three-medium heat exchanger provided in one embodiment of the utility model;

[0031] Figure 7 yes Figure 5 A schematic diagram of a top view structure;

[0032] Figure 8 It is a schematic diagram of the overall structure of a three-medium heat exchanger provided in one embodiment of the utility model;

[0033] Fig. 9 yes Figure 8 The structural breakdown diagram of

[0034] Fig.10 yes Figure 8 A schematic diagram of a top view structure;

[0035] Fig.11 It is a structural exploded view of a three-medium heat exchanger provided in one embodiment of the utility model;

[0036] Fig.12 It is a schematic diagram of the overall structure of a three-medium heat exchanger provided in one embodiment of the utility model;

[0037] Fig.13 yes Fig.12 The structural breakdown diagram of

[0038] Fig.14 yes Fig.12 A schematic diagram of a top view structure;

[0039] Fig.15 It is a schematic diagram of the overall structure of a three-medium heat exchanger provided in one embodiment of the utility model;

[0040] Fig.16 It is a schematic diagram of the overall structure of a three-medium heat exchanger provided in one embodiment of the utility model;

[0041] Fig.17 It is a schematic diagram of the overall structure of a three-medium heat exchanger provided in one embodiment of the utility model.

[0042] Reference numerals:

[0043] 1: multi-channel tube structure; 131: first channel; 132: second channel; 121: first through hole; 122: second through hole; 2: flow distribution structure; 21: first flow distribution pipe; 22: second flow distribution pipe; 210: first interface; 211: first cavity; 212: first buckle plate; 220: second interface; 13: heat sink fin. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0046] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0047] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] Combine the following Figure 1-Figure 17 The utility model is described as a three-medium heat exchanger, which comprises: a plurality of multi-channel tube structures 1 and a flow distribution structure 2.

[0050] The multi-channel tube structure 1 is formed with a first channel 131 and a second channel 132 which are isolated from each other, and the first channel 131 and the second channel 132 are thermally coupled. A first through hole 121 for fluid entry and exit is provided on the wall of the first channel 131, and a second through hole 122 for fluid entry and exit is provided on the wall of the second channel 132. The first channel 131 is used to pass a first medium, and the second channel 132 is used to pass a second medium. The first channel 131 and the second channel 132 are at least partially exposed to a third medium to be thermally coupled with the third medium.

[0051] Specifically, if Figure 1 and Figure 4 As shown, the multi-channel tube structure 1 is an integrated structure, but at least a first channel 131 and a second channel 132 are formed inside through a partition, which are used to pass the first medium and the second medium respectively. The tube wall of the multi-channel tube structure 1 is made of a material with a heat exchange function. When the third medium is passed from the outside of the multi-channel tube structure 1, it can exchange heat with the first medium and the second medium respectively through the multi-channel tube structure 1, and the first medium and the second medium exchange heat through the internal partition. Generally, the third medium is air or liquid. If liquid is used, the multi-channel tube structure 1 can be immersed in a container containing the third medium to perform heat exchange.

[0052] The flow distribution structure 2 is formed with a first flow distribution pipe 21 and a second flow distribution pipe 22 isolated from each other. The first flow distribution pipe 21 is connected to each first through hole 121, and the second flow distribution pipe 22 is connected to each second through hole 122. The first flow distribution pipe 21 is provided with a first interface 210 for fluid inlet and outlet, and the second flow distribution pipe 22 is provided with a second interface 220 for fluid inlet and outlet. It should be understood that the flow distribution structure 2 has a flow distribution function and a flow collection function. The flow distribution function is realized by setting the flow distribution pipe, and the flow collection function is realized by setting the flow collection pipe.

[0053] Specifically, if Figure 5 and Figure 7 As shown, the flow distribution structure 2 serves as the fluid inlet and fluid outlet of the multi-channel pipe structure 1. The first sub-collector 21 and the second sub-collector 22 can be an integral structure separated by a partition; or they can be a split structure. The first medium enters the first sub-collector 21 through the first interface 210, and passes from the first through hole 121 to the corresponding first channel 131; the second medium enters the second sub-collector 22 through the second interface 220, and passes from the second through hole 122 to the corresponding second channel 132. The first interface 210 and the second interface 220 are used as the main interfaces, and at least two are respectively provided for the entry and exit of the first medium and the second medium, that is, the first interface 210 and the second interface 220 each include at least one medium inlet and one medium outlet; according to the number of multi-channel pipe structures 1, the first sub-collector 21 and the second sub-collector 22 are provided with the same number of branch interfaces, and are correspondingly connected to the first through hole 121 and the second through hole 122, which has the function of dividing the first medium and the second medium.

[0054] For the three-medium heat exchanger with the above structure, its specific working process is as follows:

[0055] The first medium is introduced into the first sub-manifold 21 through the first interface 210 , and the first medium is branched from the first sub-manifold 21 to the corresponding first through hole 121 , and enters the corresponding first channel 131 ;

[0056] The second medium is introduced into the second manifold 22 through the second interface 220 , and the second medium is divided by the second manifold 22 to the corresponding second through hole 122 , and enters the corresponding second channel 132 ;

[0057] A third medium is introduced into the outside of the first channel 131 and the second channel 132, and heat is exchanged between the third medium and the first medium in the first channel 131 and the second medium in the second channel 132. The first medium in the first channel 131 exchanges heat with the second medium in the second channel 132, thereby realizing the functions of heat exchange between two of the three media and heat exchange between the three media at the same time. If multiple multi-channel tube structures are provided, there are large gaps between the multiple multi-channel tube structures. When the first medium, the second medium and the third medium exchange heat, dust is not easily accumulated and dirty and blocked, thereby improving the heat exchange reliability and heat exchange effect.

[0058] The utility model provides a three-medium heat exchanger, which comprises: a multi-channel tube structure 1 and a flow distribution structure 2; the multi-channel tube structure 1 is formed with a first channel 131 and a second channel 132 isolated from each other, and the first channel 131 and the second channel 132 are thermally coupled, a first through hole 121 for fluid in and out is provided on the wall of the first channel 131, and a second through hole 122 for fluid in and out is provided on the wall of the second channel 132, the first channel 131 is used to pass the first medium, and the second channel 132 is used to pass the second medium, and the first channel 131 and the second channel 132 are at least partially exposed to the third medium to be thermally coupled with the third medium; the flow distribution structure 2 is formed with a first sub-collector 21 and a second sub-collector 22 isolated from each other, the first sub-collector 21 is communicated with each first through hole 121, the second sub-collector 22 is communicated with each second through hole 122, the first sub-collector 21 is provided with a first interface 210 for fluid in and out, and the second sub-collector 22 is provided with a second interface 220 for fluid in and out. The utility model provides a three-medium heat exchanger, which realizes the functions of heat exchange between two of the three media and heat exchange between the three media simultaneously, and is not prone to dirt and blockage when exchanging heat with the third medium, thereby improving the heat exchange reliability and heat exchange effect.

[0059] In one embodiment of the present utility model, the three-medium heat exchanger further includes: heat dissipation fins 13, which are arranged on the outer wall of the multi-channel tube structure 1. Figure 2 As shown, in this embodiment, the three-medium heat exchanger is a fin-type heat exchanger, and heat dissipation fins 13 are respectively arranged on the outer walls of the first channel 131 and the second channel 132 to enhance the heat exchange effect between the third medium and the first medium and the second medium; and due to the pipeline design of the first channel 131 and the second channel 132, there is a large gap between the heat dissipation fins 13 thereon, which is not easy to accumulate dust and is easy to clean.

[0060] In one embodiment of the present invention, a multi-channel tube structure 1 has a plurality of first channels 131 and second channels 132, which can be respectively provided with a first channel 131 and a second channel 132 (ie, Figure 4 The structure shown in FIG. 1 may also be Figure 1In the structure shown, two first channels 131 and two second channels 132 are respectively provided. According to actual conditions, a corresponding number of first channels 131 and second channels 132 may also be provided in the same multi-channel tube structure 1 .

[0061] In one embodiment of the present invention, the first through hole 121 is located on the side wall surface of the first channel 131. Figure 2 As shown, in this embodiment, the first through hole 121 and the second through hole 122 are respectively located on the side wall surfaces of the first channel 131 and the second channel 132, that is, the side opening method. The first sub-collector 21 can be vertically inserted into the first through hole 121 and communicated with the first channel 131; the second sub-collector 22 can be vertically inserted into the second through hole 122 and communicated with the second channel 132. In this embodiment, the first sub-collector 21 and the second sub-collector 22 can be arranged at both ends of the multi-channel tube structure 1 and perpendicular to the multi-channel tube structure 1, so as to facilitate the connection between the multi-channel tube structure 1 and the sub-collector structure 2.

[0062] In one embodiment of the present invention, the second through hole 122 is located on the end surface of the second channel 132, and the first through hole 121 is located on the side wall surface of the first channel 131. Figure 3 As shown, in this embodiment, the second through hole 122 is located on the end faces of both ends of the second channel 132, and the first through hole 121 is located on the side wall surface of the first channel 131, that is, a side opening and end face opening method; the second sub-collector 22 can be connected in parallel with the second channel 132, and the first sub-collector 21 can be vertically inserted into the first channel 131, so as to meet the needs of different usage scenarios.

[0063] In one embodiment of the present invention, the first sub-manifold 21 comprises: an integrated structure consisting of a first cavity 211 and a first buckle plate 212, a through hole is formed on the first buckle plate 212, and the multi-channel tube structure 1 passes through the corresponding through hole, and the first through hole 121 is connected to the first cavity 211; the second sub-manifold 22 is arranged in the space formed by the first cavity 211 and the first buckle plate 212, and is isolated from the first cavity 211. In this embodiment, Figure 6 and Figure 7 As shown, the first sub-manifold 21 is an integrated structure formed by relatively assembling the first cavity 211 and the first pinch plate 212, the multi-channel tube structure 1 is inserted into the through hole of the first pinch plate 212, and the first through hole 121 is connected to the first cavity 211; the second sub-manifold 22 is integrated inside the first sub-manifold 21, but the two are isolated from each other and do not communicate with each other, and the second through hole 122 is connected to the second sub-manifold 22. In this embodiment, the first sub-manifold 21 and the second sub-manifold 22 adopt an integrated design, which simplifies the structure and facilitates assembly.

[0064] In one embodiment of the present invention, the first sub-manifold 21 and the second sub-manifold 22 are independent of each other, and a gap is formed between the first sub-manifold 21 and the second sub-manifold 22. Different from the first sub-manifold 21 and the second sub-manifold 22 in the above embodiment, which adopt an integrated structure, Figure 8 , Fig. 9 and Fig.10 As shown, the first sub-manifold 21 and the second sub-manifold 22 in this embodiment adopt a split structure, and the two are installed independently of each other, and a gap is formed between them, so that the first sub-manifold 21 and the second sub-manifold 22 can be installed and removed separately without affecting each other.

[0065] In one embodiment of the present invention, the flow distribution structure 2 is a cylindrical structure, and the first flow distribution pipe 21 and the second flow distribution pipe 22 are an integral structure, and a partition along the height direction is provided between the first flow distribution pipe 21 and the second flow distribution pipe 22. Fig.11 As shown, in this embodiment, the first sub-manifold 21 and the second sub-manifold 22 are an integrated structure, and a partition is used to separate the two to ensure that the first medium and the second medium are not connected to each other. The integrated structure used in this embodiment has the advantages of simple structure and easy processing.

[0066] In one embodiment of the present utility model, a plurality of multi-channel tube structures 1 are arranged in multiple rows, and multiple multi-channel tube structures 1 are arranged in parallel in each row. The first sub-collector 21 of the sub-collector structure 2 is connected to the first through hole 121 of each multi-channel tube structure 1, and the second sub-collector 22 is connected to the second through hole 122 of each multi-channel tube structure 1. In the present embodiment, a plurality of multi-channel tube structures 1 are arranged, and multiple rows can be arranged. A row is provided with multiple multi-channel tube structures 1, and multiple rows are arranged in a staggered manner. The first channels 131 of each row share a first sub-collector tube to realize medium inflow (outflow), and share a first collecting (dividing) tube to realize medium outflow (inflow), and the two second channels 132 of each row share a second sub-collector tube to realize medium inflow (outflow), and share a second collecting (dividing) tube to realize medium outflow (inflow).

[0067] In one embodiment of the present invention, a plurality of multi-channel pipe structures 1 are arranged in parallel. The first sub-manifolds 21 are located at both ends of the multi-channel pipe structure 1, and each first through hole 121 is located inside the first sub-manifold 21; the second sub-manifold 22 includes a bent pipe, which is connected between the second through holes 122 of two adjacent second channels 132, so that the plurality of second channels 132 are connected in sequence end to end through the bent pipe. Fig.12 , Fig.13 and Fig.14As shown, in this embodiment, the second sub-manifold 22 is composed of a plurality of bent tubes, through which the second through holes 122 of two upper and lower adjacent second channels 132 located on the same side are connected to each other, so that the second medium is introduced into the second channels 132 .

[0068] In one embodiment of the present invention, a plurality of multi-channel tube structures 1 are arranged in multiple rows, and a plurality of multi-channel tube structures 1 are arranged in parallel in each row; the first sub-collector 21 is located at both ends of the plurality of multi-channel tube structures 1, and each first through hole 121 is located inside the first sub-collector 21; the second sub-collector 22 includes a plurality of bent tubes, and the bent tubes are connected between the second through holes 122 of two adjacent second channels 132 in each row of multi-channel tube structures 1, so that the plurality of second channels 132 are sequentially connected end to end through the bent tubes; the plurality of rows of multi-channel tube structures 1 are connected in series or in parallel through the second through holes 122 of the multi-channel tube structures 1 at the head and tail of each row, thereby realizing the connection of the plurality of rows of multi-channel tube structures 1 in series or in parallel end to end through the bent tubes. Preferably, as Figures 15 to 17 As shown, in the present embodiment, a plurality of multi-channel tube structures 1 are provided, and multiple rows can be provided. A row is provided with multiple multi-channel tube structures 1. The multi-channel tube structures 1 are staggered and arranged in two rows. The first channels 131 of each row share a first branch (collector) flow tube to realize medium inflow (outflow), and share a first collector (divider) flow tube to realize medium outflow (inflow). The two second channels 132 of each row are respectively connected by two bending tubes. The second channels 132 of each row are connected in series through the bending tubes, and the second channels 132 of multiple rows are connected in parallel through corresponding bending tubes.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A three-medium heat exchanger, characterized in that: It comprises a plurality of multi-channel pipe structures (1) and a flow distribution structure (2); The multi-channel tube structure (1) is formed with a first channel (131) and a second channel (132) which are isolated from each other, and the first channel (131) and the second channel (132) are thermally coupled, a first through hole (121) for fluid to enter and exit is provided on the wall surface of the first channel (131), and a second through hole (122) for fluid to enter and exit is provided on the wall surface of the second channel (132), the first channel (131) is used to pass a first medium, and the second channel (132) is used to pass a second medium, and the first channel (131) and the second channel (132) are at least partially exposed to a third medium to be thermally coupled to the third medium; The flow distribution structure (2) is formed with a first flow distribution pipe (21) and a second flow distribution pipe (22) which are isolated from each other; the first flow distribution pipe (21) is connected to each of the first through holes (121); the second flow distribution pipe (22) is connected to each of the second through holes (122); the first flow distribution pipe (21) is provided with a first interface (210) for fluid inlet and outlet; the second flow distribution pipe (22) is provided with a second interface (220) for fluid inlet and outlet.

2. The three-medium heat exchanger according to claim 1, characterized in that: Also includes: Heat dissipation fins (13), the heat dissipation fins (13) being arranged on the outer wall of the multi-channel tube structure (1).

3. The three-medium heat exchanger according to claim 2, characterized in that: The second through hole (122) is located on the side wall surface of the second channel (132), and the first through hole (121) is located on the side wall surface of the first channel (131).

4. The three-medium heat exchanger according to claim 2, characterized in that: The second through hole (122) is located on the end surface of the second channel (132), and the first through hole (121) is located on the side wall surface of the first channel (131).

5. The three-medium heat exchanger according to claim 3, characterized in that: The first sub-manifold (21) comprises: an integrated structure consisting of a first cavity (211) and a first pinch plate (212); a through hole is formed on the first pinch plate (212); the multi-channel tube structure (1) passes through the corresponding through hole; and the first through hole (121) is in communication with the first cavity (211); The second sub-manifold (22) is arranged in a space formed by the first cavity (211) and the first pinch plate (212), and is isolated from the first cavity (211).

6. The three-medium heat exchanger according to claim 3, characterized in that: The first sub-manifold (21) and the second sub-manifold (22) are independent of each other, and a gap is formed between the first sub-manifold (21) and the second sub-manifold (22).

7. The three-medium heat exchanger according to claim 3, characterized in that: The flow distribution structure (2) is a cylindrical structure, and the first flow distribution pipe (21) and the second flow distribution pipe (22) are an integrated structure, and a partition plate is provided along the height direction between the first flow distribution pipe (21) and the second flow distribution pipe (22).

8. The three-medium heat exchanger according to claim 4, characterized in that: The multi-channel tube structure (1) is arranged in parallel with a plurality of them; The first sub-manifold (21) is located at two ends of the multi-channel tube structure (1), and each of the first through holes (121) is located inside the first sub-manifold (21); The second sub-manifold (22) comprises a bent tube, which is connected between the second through holes (122) of two adjacent second channels (132), so that a plurality of second channels (132) are connected end to end in sequence through the bent tube.

9. The three-medium heat exchanger according to any one of claims 5 to 7, characterized in that: The multi-channel tube structure (1) is arranged in multiple rows, and each row of the multi-channel tube structures (1) is arranged in parallel with multiple tube structures; the first sub-collector tube (21) of the sub-collector tube structure (2) is connected to the first through hole (121) of each multi-channel tube structure (1), and the second sub-collector tube (22) is connected to the second through hole (122) of each multi-channel tube structure (1).

10. The three-medium heat exchanger according to claim 8, characterized in that: The multi-channel tube structures (1) are arranged in multiple rows, and multiple multi-channel tube structures (1) are arranged in parallel in each row; The first sub-manifold (21) is located at both ends of the plurality of multi-channel tube structures (1), and each of the first through holes (121) is located inside the first sub-manifold (21); The second sub-manifold (22) comprises a plurality of bent tubes, wherein the bent tubes are connected between the second through holes (122) of two adjacent second channels (132) in each row of the multi-channel tube structure (1), so that the plurality of second channels (132) are connected end to end in sequence through the bent tubes; The multiple rows of the multi-channel tube structures (1) are connected in series or in parallel via the second through holes (122) of the multi-channel tube structures (1) at the head and the tail of each row.

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