Heat pipe exchanger for heat transfer of hot and cold fluids

Abstract

The utility model relates to heat pipe heat exchanger technical field, and disclose a kind of heat pipe heat exchanger for cold and hot fluid partition heat transfer, including shell and baffle, the shell includes upper shell and lower shell, the baffle is arranged in the middle part of upper shell and lower shell;The surface of the baffle is staggered and arranged with jack, one the both sides of the jack are low-temperature welded with a copper ring, the copper ring is inserted with heat pipe, one side of the heat pipe is located in upper shell, the other side is located in lower shell;The upper shell with the lower shell inner cavity is evenly provided with a group of flow channel components, wherein a group of the flow channel components cooperate with multiple heat pipe one end and are vertically arranged as baffling passage, another group of the flow channel components cooperate with multiple heat pipe other end and are horizontally arranged as baffling passage;The flow channel component includes positioning ring, bending flow channel plate, sealing unit and flow channel mouth, the positioning ring is sleeved on the side of the heat pipe away from the copper ring.

Description

Technical Field

[0001] This utility model relates to the field of heat pipe heat exchanger technology, and specifically to a heat pipe heat exchanger for heat transfer between hot and cold fluids. Background Technology

[0002] In modern industrial and civil applications, heat exchange equipment for hot and cold fluids is widely used in air conditioning systems, refrigeration systems, hot water supply, and industrial processes, playing a crucial role in energy recovery and transfer. Traditional heat exchangers often employ plate, shell-and-tube, or finned structures. While these types of heat exchangers offer advantages in terms of simple structure and low manufacturing cost, they have significant limitations in heat exchange efficiency, fluid uniformity, and heat loss control. Particularly in confined spaces, hot and cold fluids are prone to short-circuiting or localized stagnation, resulting in underutilization of the heat exchange area and low heat transfer efficiency. Furthermore, the contact between hot and cold fluids in traditional heat exchangers is often direct or indirect, which can easily lead to corrosion, cross-contamination, and operational safety issues.

[0003] To address the aforementioned issues, heat exchangers employing heat pipe technology have gradually become a research hotspot. Heat pipe heat exchangers absorb heat from the hot fluid through the evaporation section of the heat pipe and release it to the cold fluid through the condensation section, achieving highly efficient indirect heat exchange. This method not only effectively avoids direct contact between hot and cold fluids but also significantly improves heat transfer efficiency by utilizing the high thermal conductivity of the heat pipe. However, existing heat pipe heat exchangers still face several technical bottlenecks in practical applications: First, the installation and positioning of the heat pipes are complex, easily leading to uneven heat flow distribution within the heat exchanger; second, the fluid channel design is simplistic, lacking effective baffle structures, resulting in short fluid residence time and limited heat exchange efficiency; third, insufficient sealing between the flow channels, heat pipes, and shell easily leads to fluid leakage, reducing heat exchange effect and system stability; and fourth, the monotonous flow direction layout of the hot and cold fluids makes it difficult to achieve sufficient heat exchange contact and a balanced temperature distribution within a limited space.

[0004] In view of the above, this application proposes a heat pipe heat exchanger for separating hot and cold fluids to solve the above problems. By using a baffled flow channel design to extend the fluid residence time and enhance the turbulence effect, it can ensure uniform fluid distribution and system sealing, thereby improving the stability and reliability of equipment operation while ensuring heat exchange efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a heat pipe heat exchanger for separating hot and cold fluids, thus solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A heat pipe heat exchanger for separating hot and cold fluids includes a shell and a partition, the shell including an upper shell and a lower shell, and the partition being disposed in the middle of the upper shell and the lower shell;

[0008] The surface of the partition is staggered with insertion holes. A copper ring is low-temperature welded to both sides of each insertion hole. A heat pipe is inserted into the copper ring. One side of the heat pipe is located inside the upper shell, and the other side is located inside the lower shell.

[0009] Both the upper shell and the lower shell are provided with a set of flow channel assemblies. One set of flow channel assemblies is arranged with multiple heat pipes at one end as a vertical flow channel, and the other set of flow channel assemblies is arranged with multiple heat pipes at the other end as a horizontal flow channel.

[0010] The flow channel assembly includes a positioning ring, a bent flow channel plate, a sealing unit, and a flow channel opening. The positioning ring is fitted onto the side of the heat pipe away from the copper ring. There are multiple bent flow channel plates, which are arranged in a serpentine pattern along the bottom of the copper ring. The sealing unit is located on the surface of the bent flow channel plate for flow channel sealing. The flow channel opening is located on one side surface of the bent flow channel plate, near the edge of that surface.

[0011] Optionally, the upper housing includes an upper perimeter plate and an upper end cover. The upper perimeter plate is a square hollow frame. The upper end cover is located on the side of the upper perimeter plate away from the lower housing. The upper end cover is provided with two A connection ports, which are symmetrically arranged on different sides of the upper end cover, one of which is located on the left end and the other on the right end.

[0012] Optionally, the lower housing includes a lower perimeter plate and a lower end cover. The lower perimeter plate is a square hollow frame. The lower end cover is located on the side of the lower perimeter plate away from the upper housing. The lower end cover is provided with two B connection ports, which are arranged at both ends on one side of the lower end cover.

[0013] Optionally, the copper ring includes a round shaft and a bottom shaft, the round shaft is fixed on the bottom shaft, and the bottom shaft is octagonal, wherein one edge of the bottom shaft is fitted together.

[0014] Optionally, the inner cavity of the positioning ring facing the heat pipe is chamfered.

[0015] Optionally, the sealing unit includes a side sealing strip, an upper sealing strip, and a lower sealing strip;

[0016] A set of the sealing unit is provided with two side sealing strips. The side sealing strips are convex in shape, and one of their protruding ends is snapped onto one side of the bent flow channel plate.

[0017] The upper and lower sealing strips are located on both sides of the protruding end of the side sealing strip and are sleeved on the surface of the bent flow channel plate.

[0018] This invention provides a heat pipe heat exchanger for separating hot and cold fluids, which has the following advantages:

[0019] 1. This utility model provides a heat pipe heat exchanger for heat transfer between hot and cold fluids. By forming staggered flow paths between hot and cold fluids within the shell, and through the combination of vertical and horizontal flow channels, the fluid flow path is extended and the residence time is increased, thereby making full use of the heat pipe for heat absorption and release, and significantly improving heat exchange efficiency.

[0020] 2. This utility model provides a heat pipe heat exchanger for heat transfer between hot and cold fluids. By setting up a bent flow channel plate, the fluid is guided to repeatedly change the flow direction, which enhances the turbulence effect and improves the convective heat transfer capacity between the fluid and the surface of the heat pipe. At the same time, the staggered flow channel openings ensure uniform fluid distribution and avoid local stagnation or short-circuit flow, making the heat transfer process more uniform and efficient. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal layout structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the two A connection ports of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the two B connection ports of this utility model;

[0025] Figure 5 This is a schematic diagram of the socket structure of this utility model;

[0026] Figure 6 This is a schematic diagram of the flow channel assembly structure of this utility model;

[0027] Figure 7 This is a schematic diagram of the sealing unit structure of this utility model;

[0028] Figure 8 This is a front view of the two sets of flow channel components of this utility model;

[0029] Figure 9 This is a rear view of the two sets of flow channel assembly structures of this utility model;

[0030] Figure 10 This is a left view of the two sets of flow channel components of this utility model;

[0031] Figure 11 This is a right view of the two sets of flow channel assembly structure of this utility model;

[0032] Figure 12 This is a cross-sectional view of the two sets of flow channel components of this utility model;

[0033] Figure 13 This is a schematic diagram of the vertical deflection structure of one of the flow channel components of this utility model;

[0034] Figure 14 This is a schematic diagram of the transverse baffle structure of another flow channel component of this utility model;

[0035] Figure 15 This is a schematic diagram of the bottom shaft structure of this utility model.

[0036] In the diagram: 1. Outer shell; 11. Upper shell; 111. Upper enclosure; 112. Upper end cover; 113. A connection port; 12. Lower shell; 121. Lower enclosure; 122. Lower end cover; 123. B connection port; 2. Partition; 21. Insertion hole; 3. Copper ring; 31. Round shaft; 32. Bottom shaft; 4. Heat pipe; 5. Flow channel assembly; 51. Positioning ring; 52. Bending flow channel plate; 53. Sealing unit; 54. Flow channel opening; 531. Side sealing strip; 532. Upper sealing strip; 533. Lower sealing strip; 6. Long sealing strip; 7. Short sealing strip. Detailed Implementation

[0037] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0038] In the description of this utility model, it should be understood that the terms "lateral", "longitudinal", "end", "edge", "sidewall", "upper", "lower", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "end", "head", "tail", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] This application proposes a heat pipe heat exchanger for heat transfer between hot and cold fluids, as detailed below:

[0040] For reference Figure 1-15 This application mainly consists of a shell 1, a partition 2, a copper ring 3, a heat pipe 4, and a flow channel assembly 5. Through the coordinated arrangement of each group of structures, hot and cold fluids do not come into direct contact, but flow through the two side channels respectively, and achieve efficient heat conduction by means of the heat pipe arranged in the middle.

[0041] For reference Figure 1 The outer shell 1 includes an upper shell 11 and a lower shell 12. A partition 2 is disposed in the middle of the upper shell 11 and the lower shell 12. The three structures form its outer shape frame.

[0042] For reference Figure 1-4 The upper housing 11 includes an upper surrounding plate 111 and an upper end cover 112. The upper surrounding plate 111 has a square hollow frame structure, and the upper end cover 112 is located on the side of the upper surrounding plate 111 away from the lower housing 12. The upper end cover 112 is provided with two A connection ports 113, which are symmetrically distributed on different sides of the upper end cover 112, one on the left end and the other on the right end. Cold fluid (cold air or cold water) enters the upper housing 11 through one of the A connection ports 113, exchanges heat with the heat pipe 4 and the matching flow channel assembly 5 inside the upper housing 11, and then exits through the other A connection port 113.

[0043] Similarly, the lower housing 12 includes a lower surrounding plate 121 and a lower end cover 122. The lower surrounding plate 121 is also a square hollow frame, and the lower end cover 122 is located on the side of the lower surrounding plate 121 away from the upper housing 11. The lower end cover 122 is provided with two B connection ports 123, which are located at opposite ends of one side of the lower end cover 122. Hot fluid (hot air or hot water) enters the lower housing 12 through one of the B connection ports 123, exchanges heat with the heat pipe 4 and the matching flow channel assembly 5 inside the lower housing 12, and then exits from the other B connection port 123.

[0044] It should be noted that the heat pipe 4 inside the upper shell 11 conducts the heat absorbed by the hot fluid evaporation section inside the lower shell 12 to the cold end (condensation end) under the action of the fluid, and realizes condensation and heat release in the cold fluid environment, thereby efficiently transferring heat to the cold fluid.

[0045] For reference Figure 5-7 In order to further realize the installation of heat pipe 4, insertion holes 21 are staggered on the surface of partition 2. A copper ring 3 is welded at low temperature on both sides of each insertion hole 21. Heat pipe 4 is inserted into the copper ring 3. After installation, one side of heat pipe 4 is located in the upper shell 11 and the other side is located in the lower shell 12; its arrangement corresponds to the above description.

[0046] Furthermore, staggered insertion holes 21 cooperate with the copper ring 3 to better achieve the subsequent positioning requirements. The copper ring 3 includes a round shaft 31 and a bottom shaft 32. The round shaft 31 is fixed on the bottom shaft 32, which is octagonal in shape. One edge of the bottom shaft 32 is fitted together. (See reference for details.) Figure 15 .

[0047] Furthermore, the inner cavity of the positioning ring 51 facing the heat pipe 4 is chamfered to prevent the heat pipe from hitting the positioning tube during assembly and to position the bent flow channel plate 52. Specifically, it is located at both ends near the end caps (upper end cap 112 and lower end cap 122).

[0048] For reference Figure 6-14 Both the upper housing 11 and the lower housing 12 have a set of flow channel assemblies 5 inside their cavities. The flow channel assembly 5 includes a positioning ring 51, a bent flow channel plate 52, a sealing unit 53, and a flow channel opening 54. The positioning ring 51 is fitted onto the side of the heat pipe 4 away from the copper ring 3 to position the heat pipe. Multiple bent flow channel plates 52 are arranged in a serpentine pattern along the bottom of the copper ring 3 to guide the hot and cold fluids to form a bent flow path. The sealing unit 53 is located on the surface of the bent flow channel plate 52 to provide a seal during the bent flow of hot and cold fluids. The flow channel opening 54 is located on one side surface of the bent flow channel plate 52, near the edge of that surface, and serves as the inlet and outlet for the bent fluid. It cooperates with multiple bent flow channel plates 52 to realize a bent flow path.

[0049] Taking one specific embodiment as an example, the outer shell 1 (and the upper shell 11 and lower shell 12 arranged correspondingly on the top and bottom) is arranged in a cuboid shape, wherein the long side of the cuboid is defined as horizontal and the wide side is defined as vertical.

[0050] For reference Figure 6-15 In this embodiment, a set of flow channel assemblies 5 disposed inside the upper housing 11 cooperates with one end of multiple heat pipes 4 to form a vertically arranged baffle channel structure. The bent flow channel plates 52 located inside the upper housing 11 are all arranged in the vertical direction.

[0051] During use, the cold fluid enters the housing through a connection port 113 (A) on the upper housing 11, and then flows laterally from one end of the housing to the other along the bent flow channel plate 52. When the cold fluid reaches the lateral end, a flow channel opening 54 is formed on the surface of the bent flow channel plate 52 at the corresponding position, and the cold fluid enters the next adjacent flow area through this flow channel opening 54. At this time, the flow direction of the cold fluid changes from one direction to the opposite direction, and it flows along the bent flow channel plate 52 again.

[0052] When the cold fluid flows to the end of the bent flow channel plate 52 again, a flow port 54 is also provided at that position, allowing the cold fluid to continue into the next flow area. The remaining flow paths continue in the same manner, that is, a flow port 54 is provided at the end of each bent flow channel plate 52, so that the cold fluid passes through all the arranged bent flow channel plates 52 in a reciprocating and deflecting manner inside the upper housing 11. Finally, when the cold fluid completes the entire flow path, it is discharged from the second A connection port 113 located on the other side of the upper housing 11, realizing the entire cold fluid channel circulation process.

[0053] For reference Figure 6-15 In this embodiment, a set of flow channel assemblies 5 disposed inside the lower housing 12 cooperates with one end of multiple heat pipes 4 to form a transversely arranged baffle channel structure. The bent flow channel plates 52 located inside the lower housing 12 are all arranged in the transverse direction.

[0054] During operation, the hot fluid enters the housing through a B-connection port 123 located on the lower housing 12, and then flows along the bent flow channel plate 52 from one vertical end of the housing to the other. When the hot fluid reaches the vertical end, a flow channel opening 54 is formed on the surface of the bent flow channel plate 52 at the corresponding position, and the hot fluid enters the next adjacent flow region through this flow channel opening 54. At this time, the flow direction of the hot fluid changes from one direction to the opposite direction, and it flows along the bent flow channel plate 52 again.

[0055] When the hot fluid flows back to the end of the bent flow channel plate 52, a flow port 54 is also provided at that position, allowing the hot fluid to continue into the next flow area. The remaining flow paths continue in the same manner, that is, a flow port 54 is provided at the end of each bent flow channel plate 52, so that the hot fluid passes through all the arranged bent flow channel plates 52 in a reciprocating and deflecting manner inside the lower housing 12. Finally, when the hot fluid completes the entire flow path, it is discharged from the second B connection port 123 located on the other side of the lower housing 12, realizing the entire hot fluid channel circulation process.

[0056] In the above embodiments, both the cold and hot fluids exhibit reciprocating, baffled flow patterns inside the outer casing 1, with their flow directions perpendicular to each other. This ensures sufficient heat exchange contact between the two fluids within a limited space. On one hand, the baffled flow path extends the residence time of the fluids inside the casing, avoiding the problem of insufficient heat exchange area caused by straight flow, thereby significantly improving heat exchange efficiency. On the other hand, the alternating counter-current flow of the cold and hot fluids allows the two ends of the heat pipe 4 to continuously absorb and release heat in different regions, ensuring the stability and balance of the working fluid circulation inside the heat pipe, thus improving overall heat transfer performance.

[0057] Furthermore, the bent flow channel plate causes the fluid to constantly change direction during flow, disturbing the fluid and creating a certain turbulence effect. This disturbance enhances the convective heat transfer between the fluid and the surface of the heat pipe 4, further reducing the thermal resistance. At the same time, the staggered flow channel openings 54 guide the fluid to be evenly distributed to each flow area, avoiding stagnation or short-circuiting in local areas, thus making the entire heat exchange process more uniform and efficient.

[0058] In summary, this structure, through the combined arrangement of "vertical baffle channels" and "lateral baffle channels," creates staggered flow paths for cold and hot fluids within the shell. This not only effectively increases the heat exchange area and improves the fluid flow state but also ensures sufficient heat exchange between the cold and hot fluids, thereby enhancing the overall heat transfer efficiency and operational stability of the heat exchanger.

[0059] Furthermore, the sealing unit 53 includes a side sealing strip 531, an upper sealing strip 532, and a lower sealing strip 533; two side sealing strips 531 are provided in a set of sealing units 53, the side sealing strips 531 are convex in shape, and one of their protruding ends is snapped onto one side of the bent flow channel plate 52; the upper sealing strip 532 and the lower sealing strip 533 are located on both sides of the protruding end of the side sealing strip 531 and are sleeved on the surface of the bent flow channel plate 52.

[0060] The sealing unit 53 ensures a reliable seal between the bent flow channel plate 52 and the inner wall of the outer casing 1. The protruding end of the side sealing strip 531 engages with the bent flow channel plate 52, guaranteeing its stability and positioning accuracy after assembly and preventing displacement under fluid impact or thermal expansion and contraction conditions. The upper sealing strip 532 and lower sealing strip 533 are tightly fitted to the surface of the bent flow channel plate 52, effectively blocking leakage channels at the edges of the bent flow channel plate 52 and ensuring that the fluid flows only along the preset baffle path.

[0061] Through the synergistic effect of the sealing unit 53, not only is the flow control and guidance of the fluid inside the shell improved, but also the decrease in heat exchange efficiency and energy loss caused by fluid crossflow are avoided. At the same time, this structure also enhances the sealing reliability of the overall flow channel, extending the stability and service life of the equipment.

[0062] Furthermore, a vertical water flow channel is formed inside the upper housing 11. The sealing unit 53 is positioned above the bottom shaft 32. Due to the structural arrangement of this sealing unit, gaps are generated on both sides of the upper housing 11, allowing some cold fluid to leak out through these gaps. To avoid this problem, matching long sealing strips 6 are provided on both sides of the upper housing 11 to effectively seal the gaps on both sides.

[0063] Meanwhile, a transverse water flow channel path is formed inside the lower housing 12, with corresponding gaps on both sides in the vertical direction. To prevent leakage of cold fluid through these gaps, matching short sealing strips 7 are provided on both sides of the lower housing 12 in the vertical direction, thereby ensuring the sealing integrity of the water flow channel inside the lower housing 12.

[0064] In this invention, the working steps of the device are as follows:

[0065] First, a partition plate 2 needs to be installed in the middle of the upper housing 11 and the lower housing 12, and socket holes 21 are arranged in a staggered manner on the surface of the partition plate 2. Copper rings 3 are fixed on both sides of each socket hole 21 by low-temperature welding, and heat pipes 4 are then inserted into the copper rings 3, so that one end of the heat pipe 4 extends into the upper housing 11 and the other end extends into the lower housing 12, thus completing the basic installation.

[0066] Subsequently, a positioning ring 51 is fitted onto the end of the heat pipe 4 furthest from the copper ring 3. The inner cavity of the positioning ring 51 has a chamfered structure on the side facing the heat pipe 4, which can effectively prevent the heat pipe from being damaged by impact during assembly. At the same time, a set of flow channel assemblies is installed in the internal spaces of the upper shell 11 and the lower shell 12 respectively. The flow channel assembly 5 is composed of the positioning ring 51, the bent flow channel plate 52, the sealing unit 53, and the flow channel opening 54. The bent flow channel plate 52 is arranged in a predetermined direction, which is a vertical deflection in the upper shell 11 and a horizontal deflection in the lower shell 12.

[0067] When assembling the bent flow channel plate 52, the sealing unit 53 needs to be installed simultaneously. The sealing unit 53 is composed of a side sealing strip 531, an upper sealing strip 532, and a lower sealing strip 533. The protruding end of the side sealing strip 531 is engaged with one side of the bent flow channel plate 52, which can play a role in stable positioning. The upper sealing strip 532 and the lower sealing strip 533 are in contact with the surface of the bent flow channel plate 52 to block the fluid leakage path that may occur at the edge. Through this structural arrangement, the bent flow channel plate 52 can maintain a stable and reliable state within the housing 1.

[0068] On both sides of the upper housing 11, long sealing strips need to be installed to fill the lateral gaps caused by the arrangement of the sealing units and prevent cold fluid from leaking out of the gaps. On both sides of the lower housing 12, short sealing strips need to be installed to seal the vertically spaced areas. Through the cooperation of the long sealing strip 6 and the short sealing strip 7, the flow passage inside the entire housing 1 can be completely sealed.

[0069] During fluid operation, the cold fluid enters through one A connection port 113 (liquid inlet) of the upper shell 11, forming a reciprocating flow path along the vertically arranged bent flow channel plate 52. While changing its flow direction multiple times, it undergoes sufficient heat exchange with the heat pipe, and finally exits from the other A connection port 113 (liquid outlet) of the upper shell 11. The hot fluid enters through one B connection port 123 (liquid inlet) of the lower shell 12, similarly forming a reciprocating flow path along the horizontally arranged bent flow channel plate 52. During its flow, it continuously exchanges heat with the heat pipe 4, and finally exits from the other B connection port 123 (liquid outlet) of the lower shell 12.

[0070] Under the alternating flow of hot and cold fluids, heat pipe 4 can continuously complete the cycle of evaporation, heat transfer and condensation, realizing efficient heat exchange between the two fluids without direct contact, thereby ensuring the performance and stability of the entire heat exchange device.

[0071] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments, and various changes and modifications can be made without departing from the spirit and scope of this utility model. All such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat pipe heat exchanger for separating hot and cold fluids, characterized in that: It includes an outer shell (1) and a partition (2), the outer shell (1) including an upper shell (11) and a lower shell (12), and the partition (2) is disposed in the middle of the upper shell (11) and the lower shell (12); The surface of the partition (2) is staggered with insertion holes (21). A copper ring (3) is welded at low temperature on both sides of each insertion hole (21). A heat pipe (4) is inserted into the copper ring (3). One side of the heat pipe (4) is located in the upper shell (11), and the other side is located in the lower shell (12). Both the upper shell (11) and the lower shell (12) are provided with a set of flow channel assemblies (5). One set of flow channel assemblies (5) is arranged with multiple heat pipes (4) at one end as a vertical flow channel, and the other set of flow channel assemblies (5) is arranged with multiple heat pipes (4) at the other end as a horizontal flow channel. The flow channel assembly (5) includes a positioning ring (51), a bent flow channel plate (52), a sealing unit (53), and a flow channel opening (54). The positioning ring (51) is fitted onto the side of the heat pipe (4) away from the copper ring (3). There are multiple bent flow channel plates (52), which are arranged in a serpentine pattern along the bottom of the copper ring (3). The sealing unit (53) is located on the surface of the bent flow channel plate (52) for flow channel sealing. The flow channel opening (54) is located on one side of the bent flow channel plate (52) and close to the edge of the surface.

2. The heat pipe heat exchanger for separating hot and cold fluids according to claim 1, characterized in that: The upper housing (11) includes an upper circumference plate (111) and an upper end cover (112). The upper circumference plate (111) is a square hollow frame. The upper end cover (112) is located on the side of the upper circumference plate (111) away from the lower housing (12). The upper end cover (112) is provided with two A connection ports (113). The two A connection ports (113) are symmetrically arranged on different sides of the upper end cover (112), one of which is located on the left end and the other is located on the right end.

3. The heat pipe heat exchanger for separating hot and cold fluids according to claim 1, characterized in that: The lower housing (12) includes a lower enclosure (121) and a lower end cover (122). The lower enclosure (121) is a square hollow frame. The lower end cover (122) is located on the side of the lower enclosure (121) away from the upper housing (11). The lower end cover (122) is provided with two B connection ports (123). The two B connection ports (123) are arranged at both ends on one side of the lower end cover (122).

4. The heat pipe heat exchanger for separating hot and cold fluids according to claim 1, characterized in that: The copper ring (3) includes a round shaft (31) and a bottom shaft (32). The round shaft (31) is fixed on the bottom shaft (32). The bottom shaft (32) is octagonal, and one side edge of the bottom shaft (32) is fitted together.

5. The heat pipe heat exchanger for separating hot and cold fluids according to claim 1, characterized in that: The inner cavity of the positioning ring (51) facing the heat pipe (4) has a chamfer.

6. The heat pipe heat exchanger for separating hot and cold fluids according to claim 1, characterized in that: The sealing unit (53) includes a side sealing strip (531), an upper sealing strip (532) and a lower sealing strip (533). Two side sealing strips (531) are provided in a set of sealing units (53). The side sealing strips are convex in shape, and one of their protruding ends is snapped onto one side of the bent flow channel plate (52). The upper sealing strip (532) and the lower sealing strip (533) are located on both sides of the protruding end of the side sealing strip (531) and are sleeved on the surface of the bent flow channel plate (52).

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