Heat exchanger and assembling tool and method thereof

Abstract

The heat exchanger comprises a shell with two open ends, a plurality of heat conduction spacers are arranged in the shell at equal intervals, gaps are reserved between the spacers and the adjacent spacers or the inner wall of the shell and are divided into first heat exchange gaps and second heat exchange gaps, the first heat exchange gaps and the second heat exchange gaps are distributed in a staggered mode, and a plurality of separation strips are arranged on one sides of the heat conduction spacers. A plurality of U-shaped flow guide grooves are formed in the sealing cover, and the two ends of the U-shaped flow guide grooves communicate with one end of the first heat exchange gap; and the two ends of the sealing cover are provided with flow guide holes which are communicated with the side edge of one end of the second heat exchange gap. A first water inlet connector communicated with the inlet end of the uppermost first heat exchange gap, a first water outlet connector communicated with the outlet end of the lowermost first heat exchange gap, a second water outlet connector communicated with the outlet end of the uppermost second heat exchange gap and a second water inlet connector communicated with the inlet end of the lowermost second heat exchange gap are arranged outside a sealing cover. The volume is reduced while efficient heat exchange is guaranteed, and the assembly efficiency is improved by adopting an automatic assembly tool.

Description

Technical Field

[0001] This invention belongs to the field of heat exchanger technology, and relates to a heat exchanger, assembly tooling and method thereof. Background Technology

[0002] With the continuous development of industrial technology, the efficient utilization of energy has become one of the core issues of concern in various fields. Among numerous energy-saving and thermal management technologies, heat exchangers, as key equipment for heat transfer, are widely used in industries such as energy, chemical, refrigeration, power, metallurgy, and HVAC. Their basic function is to transfer heat from one high-temperature medium to another low-temperature medium, thereby achieving energy recovery, temperature regulation, or process control.

[0003] Heat exchangers, depending on their structural form, mainly include various types such as shell-and-tube, plate, finned, and spiral plate. Regardless of the structure, their core working principle relies on the heat exchange between two fluid media at different temperatures through a solid wall. In this process, heat is conducted from the high-temperature fluid to the low-temperature fluid through the wall, achieving the transfer of thermal energy. To improve heat exchange efficiency, engineering design generally considers that, given a fixed heat transfer temperature difference and material thermal conductivity, the heat exchange area is the key factor determining heat exchange efficiency. The larger the heat exchange area, the more heat is transferred per unit time, and the higher the heat exchange efficiency.

[0004] To achieve a larger heat exchange area, existing technologies typically employ methods such as increasing the number of heat exchange tubes, extending the flow channel length, or adding fins. However, this directly leads to a significant increase in the overall size and weight of the heat exchanger, occupying more installation space, increasing material costs, and complicating transportation and installation. Furthermore, the assembly process of existing heat exchangers largely relies on manual operation, such as tube sheet expansion, seal installation, and shell welding. This results in low automation, difficulty in ensuring assembly accuracy, low production efficiency, and susceptibility to quality problems like leaks due to human error, severely impacting product reliability and the stability of mass production. Summary of the Invention

[0005] The purpose of this invention is to provide a heat exchanger, assembly tooling and method thereof, which reduces the size of the heat exchanger while ensuring efficient heat exchange, and adopts automated assembly tooling to effectively improve its assembly efficiency.

[0006] To solve the above-mentioned technical problems, the present invention provides a heat exchanger, including a shell with openings at both ends. Multiple heat-conducting fins are evenly spaced inside the shell. Each fin has a gap between itself and an adjacent fin or the inner wall of an adjacent shell. The gaps are divided into a first heat exchange gap and a second heat exchange gap. The first heat exchange gap and the second heat exchange gap are staggered in pairs. Multiple dividing strips are provided on one side of each heat-conducting fin along its length. The two ends of each dividing strip do not extend to the end of the corresponding heat-conducting fin.

[0007] Both ends of the housing are connected to sealing caps. Each sealing cap has multiple U-shaped guide grooves. Both ends of each U-shaped guide groove are connected to one end of the corresponding first heat exchange gap. The U-shaped guide grooves at both ends of the housing are staggered vertically, so that all the first heat exchange gaps are connected in a serpentine manner. Each sealing cap has side guide grooves on both sides. Both ends of each side guide groove are provided with guide holes that are connected to the side of the corresponding second heat exchange gap. The side guide grooves at both ends of the housing are staggered vertically, so that all the second heat exchange gaps are connected in a serpentine manner.

[0008] One of the sealing covers has a first water inlet port connected to the inlet end of the uppermost first heat exchange gap, another sealing cover has a first water outlet port connected to the outlet end of the lowermost first heat exchange gap, another sealing cover has a second water outlet port connected to the outlet end of the uppermost second heat exchange gap, and another sealing cover has a second water inlet port connected to the inlet end of the lowermost second heat exchange gap.

[0009] By adopting the above technical solution, medium one flows in from the first inlet, passes through the serpentine first heat exchange gap, and flows out from the first outlet. Medium two flows in from the second inlet, passes through the serpentine second heat exchange gap, and flows out from the second outlet. The first medium flows from top to bottom, and the second medium flows from bottom to top, exchanging heat through thermally conductive baffles. Because the thermally conductive baffles have a large area, and the first and second heat exchange gaps are sufficiently thin, the heat exchange area between medium one and medium two can be maximized, thereby improving heat exchange efficiency. Simultaneously, both the first and second heat exchange gaps allow for serpentine flow, minimizing the volume of the heat exchanger.

[0010] The present invention is further configured such that both inner walls of the housing that contact the thermally conductive insulating sheet are provided with an elastic sealing layer, and the inner wall of each sealing cover is provided with an elastic sealing layer that contacts the edge of the thermally conductive insulating sheet.

[0011] The present invention is further configured such that the elastic sealing layer is made of perfluororubber material.

[0012] The present invention is further configured such that the edges of both opening ends of the housing are provided with a first connecting edge outwards, and the edge of each sealing cover is provided with a second connecting edge outwards and connected to the corresponding first connecting edge.

[0013] The present invention is further configured such that the first connecting edge and the second connecting edge are connected by adhesive.

[0014] The present invention also discloses an assembly fixture for a heat exchanger, including a fixture frame. A partition plate is provided at the upper end of the fixture frame. Multiple partition positioning grooves are formed downwards at the upper end of the partition positioning plate, with the distance between each pair of partition positioning grooves equal to the thickness of the thermally conductive partition plus the separator strip. A U-shaped storage groove perpendicular to one side of the partition positioning plate is provided above the fixture frame. The width of the U-shaped storage groove is equal to the length of the thermally conductive partition. A horizontally arranged and perpendicularly arranged slab-retrieving telescopic motor is installed above the side of the partition positioning plate away from the U-shaped storage groove. The telescopic shaft of the slab-retrieving telescopic motor facing the partition positioning plate is connected to a vertically arranged slab-releasing telescopic motor. The telescopic shaft of the slab-releasing telescopic motor is downwards and connected to a slab-retrieving plate facing the U-shaped storage groove. A first electromagnet is provided on the side of the slab-retrieving plate away from the U-shaped storage groove.

[0015] The tooling frame is equipped with a horizontally arranged pusher telescopic motor at one end of the partition positioning plate, which is also arranged along its length. The telescopic shaft of the pusher telescopic motor faces the partition positioning plate and is connected to a push plate. The lower edge of the push plate is not lower than the upper edge of the partition positioning plate. The push plate has multiple partition slots on the side facing the partition positioning plate that correspond one-to-one with the partition positioning slots. The tooling frame is equipped with a rotary motor at the end of the partition positioning plate away from the pusher telescopic motor. The power output shaft of the rotary motor is connected to a horizontally arranged housing positioning plate. The upper end of the housing positioning plate has a housing positioning slot with openings at both ends. The tooling frame is equipped with a horizontally arranged blocking telescopic motor at the end of the housing positioning plate away from the partition positioning plate, which is also arranged along its length. The telescopic shaft of the blocking telescopic motor faces the partition positioning plate and is connected to a baffle.

[0016] The tooling frame is provided with U-shaped cover positioning grooves on both sides of the housing positioning plate perpendicular to the blocking telescopic motor. A cover mounting telescopic motor is installed on the side of each U-shaped cover positioning groove away from the housing positioning groove. The telescopic shaft of the cover mounting telescopic motor faces the housing positioning plate and is connected to a cover connecting plate. A second electromagnet is provided on the side of the cover connecting plate away from the housing positioning plate.

[0017] The invention is further configured such that each side wall of the U-shaped storage groove is provided with a pushing groove arranged along its length, and a conveyor frame is provided on the outside of each pushing groove of the U-shaped storage groove. Each conveyor frame has a vertically arranged drive shaft rotatably connected to both ends, and each conveyor frame is equipped with a drive motor for driving the corresponding drive shaft to rotate. Each conveyor frame has a conveyor belt with two drive shafts attached to it, and multiple push strips are arranged at equal intervals on the outside of each conveyor belt. The distance between each pair of push strips is equal to the thickness of the heat-conducting insulating sheet plus the separator strip.

[0018] The present invention is further configured such that the side of the plate being picked up faces the U-shaped storage groove has multiple partition slots that cooperate with the partition strip, and the two sides of the opening end of each partition slot expand outward.

[0019] The invention is further configured such that the upper middle part of each spacer slot expands upward and outward.

[0020] This invention also discloses a method for assembling a heat exchanger, comprising the following steps:

[0021] S1. Arrange multiple thermally conductive insulating sheets neatly into the U-shaped storage slot, and place the housing at the upper end of the housing positioning slot;

[0022] S2. The retractable motor extends to drive the retractable plate into the U-shaped storage slot. When the retractable plate contacts a heat-conducting partition, the first electromagnet is energized to generate magnetism and attract the heat-conducting partition. Then the retractable motor retracts to move the retractable plate carrying the heat-conducting partition to the upper part of the partition positioning plate. After that, the placement retractable motor extends to drive the retractable plate carrying the heat-conducting partition downward to insert the heat-conducting partition downward into the corresponding partition positioning slot and the corresponding partition slot. This step is repeated so that each partition positioning slot of the partition positioning plate is filled with a heat-conducting partition.

[0023] S3. The blocking telescopic motor extends, driving the baffle to extend into the housing positioning groove and contact one end of the housing. The pusher telescopic motor extends, driving the pusher to push all the heat-conducting partitions on the partition positioning plate into the housing until all the heat-conducting partitions are inserted into the housing. After completion, both the blocking telescopic motor and the pusher telescopic motor are reset.

[0024] S4. Place a sealing cover in each of the two U-shaped cover positioning grooves. The second electromagnet is energized to generate magnetism, causing the cover connecting plate to attract the corresponding sealing cover. Sealant is applied to the edge of the opening end of each sealing cover.

[0025] S5. The rotating motor drives the housing positioning plate to rotate the housing by 90 degrees, so that its two ends face the corresponding sealing cover respectively;

[0026] S6. The telescopic motors installed at both ends of the cover extend simultaneously, driving the connecting plates of the cover at both ends to carry the sealing cover closer to the two ends of the housing, so that the cover at both ends is in close contact with the two open ends of the housing. Finally, the second electromagnet is de-energized, and the heat exchanger is removed, completing the assembly of the heat exchanger.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] Firstly, by arranging multiple heat-conducting fins at equal intervals within the shell and rationally designing the distribution of the first and second heat exchange gaps, the medium can fully contact the heat-conducting fins during flow, thereby maximizing the heat exchange area and improving heat exchange efficiency. Simultaneously, this structural design minimizes the size of the heat exchanger, saving installation space and material costs.

[0029] Secondly, the use of automated assembly fixtures for heat exchanger assembly effectively improves assembly efficiency. Through the coordinated operation of components such as the plate-picking telescopic motor, plate-releasing telescopic motor, plate-pushing telescopic motor, blocking telescopic motor, and cover-installing telescopic motor, the automatic picking and placing of heat-conducting fins, shell positioning, and sealing cover installation are achieved, reducing manual operation and improving assembly accuracy and production efficiency. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention;

[0031] Figure 2 This is a diagram showing the sealed cap in its open state;

[0032] Figure 3 Used to demonstrate the elastic sealing layer inside the housing;

[0033] Figure 4 Used to display the separator strips on the thermally conductive insulating sheet;

[0034] Figure 5 It is used to display the U-shaped flow channel inside the sealing cap;

[0035] Figure 6 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

[0036] Figure 7 Used to demonstrate the positional relationship between the partition positioning plate and the push plate;

[0037] Figure 8 A partial sectional view used to show the internal structure of the U-shaped storage trough;

[0038] Figure 9 Used to demonstrate the positional relationship between the housing positioning plate and the two U-shaped cover positioning slots.

[0039] The components include: 1. Shell; 2. Thermally conductive partition; 3. Separator strip; 4. Elastic sealing layer; 5. Sealing cap; 6. First connecting edge; 7. Second connecting edge; 8. U-shaped guide channel; 9. Side guide channel; 10. Guide hole; 11. First water inlet; 12. First water outlet; 13. Second water outlet; 14. Second water inlet; 15. Tooling frame; 16. Partition positioning plate; 17. Partition positioning groove; 18. U-shaped storage groove; 19. Pushing groove; 20. Conveyor frame; 21. Drive shaft; 2. Drive motor; 23. Conveyor belt; 24. Push bar; 25. Sheet picking telescopic motor; 26. Sheet placement telescopic motor; 27. Sheet picking plate; 28. First electromagnet; 29. ​​Spacer slot; 30. Sheet pushing telescopic motor; 31. Push plate; 32. Spacer slot; 33. Rotating motor; 34. Housing positioning plate; 35. Housing positioning groove; 36. Blocking telescopic motor; 37. Baffle; 38. U-shaped cover positioning groove; 39. Cover mounting telescopic motor; 40. Cover connecting plate; 41. Second electromagnet. Detailed Implementation

[0040] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the heat exchanger, assembly fixture, and method proposed in this invention. The advantages and features of this invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise scales, used only to facilitate and clarify the illustration of the embodiments of this invention. The same or similar reference numerals in the drawings represent the same or similar parts.

[0041] Example 1, referring to Figure 1-5 A heat exchanger includes a shell 1 open at both ends. Multiple thermally conductive baffles 2 are arranged at equal intervals inside the shell 1. These baffles 2 are made of low-carbon steel, a material known for its low cost, good thermal conductivity, and magnetic attraction. Each baffle has a gap between itself and an adjacent baffle or the inner wall of the adjacent shell 1. These gaps can be divided into a first heat exchange gap and a second heat exchange gap, which are staggered in pairs.

[0042] Each thermally conductive partition 2 has multiple dividing strips 3 extending along its length on one side. Each dividing strip 3 contacts the inner wall of the adjacent thermally conductive partition 2 or the adjacent shell 1, thereby dividing the first heat exchange gap and the second heat exchange gap into multiple flow channels. Furthermore, neither end of each dividing strip 3 extends to the end of the corresponding thermally conductive partition 2.

[0043] Both inner walls of the housing 1 that are in contact with the thermally conductive partition 2 are provided with an elastic sealing layer 4. The elastic sealing layer 4 is made of perfluororubber material, which is intended to enhance its high temperature resistance.

[0044] Both ends of the housing 1 are connected to a sealing cap 5. The edges of the two open ends of the housing 1 are provided with a first connecting edge 6. The edge of each sealing cap 5 is provided with a second connecting edge 7 for connecting with the corresponding first connecting edge 6. The first connecting edge 6 and the second connecting edge 7 are connected by adhesive. Different sealants can be selected according to the temperature of the application environment.

[0045] Each sealing cover 5 is provided with multiple U-shaped guide grooves 8. Both ends of each U-shaped guide groove 8 are connected to one end of the corresponding first heat exchange gap. The U-shaped guide grooves 8 at both ends of the housing 1 are staggered, so that all the first heat exchange gaps are connected in a serpentine manner.

[0046] Each sealing cover 5 has multiple side guide grooves 9 on its left and right sides. Each side guide groove 9 has a guide hole 10 at both ends that is connected to one side of the corresponding second heat exchange gap. The side guide grooves 9 at both ends of the housing 1 are staggered, so that all the second heat exchange gaps are connected in a serpentine manner.

[0047] Each sealing cap 5 has an elastic sealing layer 4 on its inner wall that contacts the edge of the heat-conducting insulating sheet 2. This elastic sealing layer 4 is also made of perfluororubber.

[0048] One of the sealing covers 5 is provided with a first water inlet 11 connected to the inlet end of the uppermost first heat exchange gap, and the other sealing cover 5 is provided with a first water outlet 12 connected to the outlet end of the lowermost first heat exchange gap. In this way, the medium flows in from the first water inlet 11, passes through the first heat exchange gap which is guided in a serpentine shape, and flows out from the first water outlet 12.

[0049] One of the sealing caps 5 is provided with a second water outlet 13 that is connected to the outlet end of the uppermost second heat exchange gap, and the other sealing cap 5 is provided with a second water inlet 14 that is connected to the inlet end of the lowermost second heat exchange gap, so that the medium 2 flows in from the second water inlet, passes through the second heat exchange gap which is guided in a serpentine shape, and flows out from the second water outlet 13.

[0050] The first medium flows from top to bottom, and the second medium flows from bottom to top, exchanging heat through the thermally conductive partition 2. Because the thermally conductive partition 2 has a large area, and the first and second heat exchange gaps are sufficiently thin, the heat exchange area between medium one and medium two can be maximized, thereby improving heat exchange efficiency. Simultaneously, both the first and second heat exchange gaps allow the medium to flow in a serpentine pattern, minimizing the volume of the heat exchanger.

[0051] Example 2, refer to Figure 6-9 An assembly fixture for a heat exchanger, based on the heat exchanger described in Embodiment 1, includes a fixture frame 15. A partition positioning plate 16 is provided at the upper end of the fixture frame 15. Multiple partition positioning grooves 17 are formed downwards along the length of the upper end of the partition positioning plate 16. The distance between each pair of partition positioning grooves 17 is equal to the sum of the thicknesses of the heat-conducting partition 2 and the separating strip 3.

[0052] The tooling frame 15 has a U-shaped storage groove 18 perpendicular to one side of the partition positioning plate 16. The width of the U-shaped storage groove 18 is equal to the length of the heat-conducting partition 2. A pushing groove 19 is formed along the length of each side wall of the U-shaped storage groove 18. A conveyor frame 20 is arranged outside each pushing groove 19. A vertically arranged drive shaft 21 is rotatably connected to both ends of each conveyor frame 20. Each conveyor frame 20 is equipped with a drive motor 22 for driving the corresponding drive shaft 21. A conveyor belt 23 is movably installed inside each conveyor frame 20, sleeved on the outside of the two drive shafts 21. Multiple push strips 24 are evenly spaced on the outside of each conveyor belt 23. The distance between any two push strips 24 is equal to the sum of the thicknesses of the heat-conducting partition 2 and the separator strip 3. By placing the thermally conductive partition 2 vertically between the two push bars 24, the U-shaped storage groove 18 can accommodate a sufficient number of thermally conductive partitions 2. Each time a thermally conductive partition 2 is removed, the drive motor 22 can drive the conveyor belt 23 to move, thereby pushing the thermally conductive partition 2 forward.

[0053] A horizontally positioned and perpendicularly perpendicular telescopic motor 25 is installed above the side of the partition positioning plate 16 away from the U-shaped storage groove 18. A vertically positioned telescopic motor 26 is connected to the telescopic shaft of the telescopic motor 25 facing the partition positioning plate 16. The telescopic shaft of the telescopic motor 26 faces downwards and is connected to a telescopic plate 27 facing the U-shaped storage groove 18. Two first electromagnets 28 are positioned on the side of the telescopic plate 27 away from the U-shaped storage groove 18, arranged left and right. Multiple partition slots 29, adapted to the partition bars 3, are opened on the side of the telescopic plate 27 facing the U-shaped storage groove 18. The openings of each partition slot 29 expand outwards on both sides to allow the partition bars 3 to gradually enter the partition slot 29.

[0054] A horizontally arranged pusher telescopic motor 30 is mounted on one end of the partition positioning plate 16 on the tooling frame 15. The telescopic shaft of the pusher telescopic motor 30 faces the partition positioning plate 16 and is connected to a push plate 31. The lower edge of the push plate 31 is not lower than the upper end of the partition positioning plate 16. Multiple partition slots 32 are opened on the side of the push plate 31 facing the partition positioning plate 16, which correspond one-to-one with the partition positioning grooves 17. The upper middle part of each partition slot 32 expands upward and outward, so that the edge of the heat-conducting partition 2 can be inserted into the partition slot 32, which is more conducive to the push plate 31 stably pushing the heat-conducting partition 2 into the housing 1.

[0055] A rotary motor 33 is mounted on the end of the partition plate 16 away from the pusher telescopic motor 30. The power output shaft of the rotary motor 33 faces upward and is connected to a horizontally positioned housing 1 positioning plate. The upper end of the housing 1 positioning plate has a housing 1 positioning groove with openings at both ends. A blocking telescopic motor 36 is mounted on the end of the housing 1 positioning plate away from the partition plate 16. The telescopic shaft of the blocking telescopic motor 36 faces the partition plate 16 and is connected to a baffle 37. The baffle 37 is used to block the housing 1 when the heat-conducting partition 2 is pushed into the housing 1.

[0056] The tooling frame 15 has a U-shaped cover positioning groove 38 with an open top on both sides of the positioning plate of the housing 1, perpendicular to the blocking telescopic motor 36. A cover mounting telescopic motor 39 is installed on the side of each U-shaped cover positioning groove 38 away from the positioning groove of the housing 1. The telescopic shaft of the cover mounting telescopic motor 39 faces the positioning plate of the housing 1 and is connected to a cover connecting plate 40. Two second electromagnets 41 are arranged left and right on the side of the cover connecting plate 40 away from the positioning plate of the housing 1. The second electromagnets 41 are used to attract the sealing cover 5 to prevent the sealing cover 5 from tipping over when it is pushed to move.

[0057] Example 3: A method for assembling a heat exchanger, using the assembly fixture for a heat exchanger described in Example 2, with the following specific steps:

[0058] S1: Arrange multiple thermally conductive insulating sheets 2 neatly and place them into the U-shaped storage groove 18, and place the housing 1 at the upper end of the positioning groove of the housing 1.

[0059] S2: The sheet-retrieving telescopic motor 25 extends, driving the sheet-retrieving plate 27 into the U-shaped storage slot 18. When the sheet-retrieving plate 27 comes into contact with a thermally conductive partition 2, the first electromagnet 28 is energized to generate magnetism, attracting the thermally conductive partition 2. Subsequently, the sheet-retrieving telescopic motor 25 retracts, causing the sheet-retrieving plate 27 to move with the thermally conductive partition 2 above the partition positioning plate 16. Then, the sheet-discharging telescopic motor 26 extends, driving the sheet-retrieving plate 27 to move downwards with the thermally conductive partition 2, causing the thermally conductive partition 2 to be inserted downwards into the corresponding partition positioning slot 17 and partition slot 32. Each time a thermally conductive partition 2 is removed, the drive motor 22 drives the conveyor belt 23 to rotate, thereby pushing the thermally conductive partition 2 forward. This step is repeated until each partition positioning slot 17 of the partition positioning plate 16 is filled with a thermally conductive partition 2.

[0060] S3: The blocking telescopic motor 36 extends, driving the baffle 37 to extend into the positioning groove of the housing 1 and contact one end of the housing 1. The pusher telescopic motor 30 extends, driving the pusher plate 31 to push all the heat-conducting partitions 2 on the partition positioning plate 16 into the housing 1 until all the heat-conducting partitions 2 are inserted into the housing 1. After completion, both the blocking telescopic motor 36 and the pusher telescopic motor 30 reset.

[0061] S4: Place a sealing cap 5 in each of the two U-shaped cap positioning grooves 38. The second electromagnet 41 is energized to generate magnetism, causing the cap connecting plate 40 to attract the corresponding sealing cap 5. Sealant is applied to the edge of the opening of each sealing cap 5. In conventional applications, silicone sealant is used; in high-temperature applications, polyimide sealant is used.

[0062] S5: Rotating motor 33 drives the positioning plate of housing 1 to rotate housing 1 by 90 degrees, so that its two ends face the corresponding sealing cover 5.

[0063] S6: The telescopic motors 39 mounted on the covers at both ends extend simultaneously, driving the connecting plates 40 of the covers at both ends to bring the sealing covers 5 closer to the two ends of the housing 1, so that the sealing covers 5 at both ends are tightly fitted to the two open ends of the housing 1. If silicone sealant is used, fix the covers to the housing 1 on the tooling frame 15 for ten minutes to complete the initial curing. Then, de-energize the second electromagnet 41 and remove the heat exchanger to complete the assembly. If polyimide sealant is used, place the heat exchanger on the tooling frame 15 and manually wrap and fix it to ensure that the sealing covers 5 are always in contact with the two ends of the housing 1. Finally, de-energize the second electromagnet 41, remove the heat exchanger and maintain it at high temperature to cure the sealant, thus completing the assembly of the heat exchanger.

[0064] It should also be noted that all terms such as "set up" and similar descriptive words in this application (especially the specification) indicate that two structures have or exist a connection relationship. However, the specific means by which the two are connected are not limited in detail, and are usually conventional connection methods. That is, the means should be understood as prior art and do not need to be elaborated. For example, "m is set up with n" only indicates that structure m has structure n, and whether the two are connected by welding, riveting, adhesive, or integral molding is within the scope of protection of this application. Similarly, "x is rotatably set up with y" only indicates that y and x can rotate relative to each other, and whether the two are connected by a bearing, or whether y directly passes through x and is rotatably connected to x, or other feasible methods, are all within the scope of protection of this application.

[0065] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A heat exchanger comprising a shell (1) open at both ends, characterized in that, Multiple heat-conducting diaphragms (2) are evenly spaced inside the housing (1). Each diaphragm has a gap between itself and the adjacent diaphragm or the inner wall of the adjacent housing (1). The gaps are divided into a first heat exchange gap and a second heat exchange gap. The first heat exchange gap and the second heat exchange gap are staggered. Each heat-conducting diaphragm (2) has multiple partition strips (3) arranged along its length on one side. The two ends of each partition strip (3) do not extend to the end of the corresponding heat-conducting diaphragm (2). Both ends of the housing (1) are connected to sealing caps (5). Each sealing cap (5) has multiple U-shaped guide grooves (8). Both ends of each U-shaped guide groove (8) are connected to one end of the corresponding first heat exchange gap. The U-shaped guide grooves (8) at both ends of the housing (1) are staggered vertically, so that all the first heat exchange gaps are connected in a serpentine manner. Each sealing cap (5) has side guide grooves (9) on both sides. Both ends of each side guide groove (9) are provided with guide holes (10) that are connected to the side of one end of the corresponding second heat exchange gap. The side guide grooves (9) at both ends of the housing (1) are staggered vertically, so that all the second heat exchange gaps are connected in a serpentine manner. One of the sealing caps (5) is provided with a first water inlet (11) connected to the inlet end of the uppermost first heat exchange gap, one of the sealing caps (5) is provided with a first water outlet (12) connected to the outlet end of the lowermost first heat exchange gap, one of the sealing caps (5) is provided with a second water outlet (13) connected to the outlet end of the uppermost second heat exchange gap, and one of the sealing caps (5) is provided with a second water inlet (14) connected to the inlet end of the lowermost second heat exchange gap.

2. A heat exchanger according to claim 1, characterized in that, The inner walls of the housing (1) that are in contact with the thermally conductive diaphragm (2) are provided with elastic sealing layers (4), and the inner wall of each sealing cover (5) is provided with elastic sealing layers (4) that are in contact with the edge of the thermally conductive diaphragm (2).

3. A heat exchanger according to claim 2, characterized in that, The elastic sealing layer (4) is made of perfluororubber.

4. A heat exchanger according to claim 1, characterized in that, The edges of the two opening ends of the housing (1) are provided with a first connecting edge (6) facing outwards, and the edges of each sealing cover (5) are provided with a second connecting edge (7) that connects to the corresponding first connecting edge (6).

5. A heat exchanger according to claim 4, characterized in that, The first connecting edge (6) and the second connecting edge (7) are connected by adhesive.

6. An assembly fixture for a heat exchanger, based on a heat exchanger according to any one of claims 1-5, comprising a fixture frame (15), characterized in that, The upper end of the tooling frame (15) is provided with a partition positioning plate (16). Multiple partition positioning grooves (17) are formed downwards at the upper end of the partition positioning plate (16) along its length. The distance between any two partition positioning grooves (17) is equal to the thickness of the heat-conducting partition (2) plus the thickness of the separator strip (3). A U-shaped storage groove (18) perpendicular to the partition positioning plate (16) is provided above one side of the tooling frame (15). The width of the U-shaped storage groove (18) is equal to the length of the heat-conducting partition (2). 15) A horizontally arranged and perpendicularly arranged telescopic motor (25) is installed above the side of the partition positioning plate (16) away from the U-shaped storage groove (18). The telescopic shaft of the telescopic motor (25) facing the partition positioning plate (16) is connected to a vertically arranged telescopic motor (26). The telescopic shaft of the telescopic motor (26) facing the partition positioning plate (16) is downward and connected to a telescopic plate (27) facing the U-shaped storage groove (18). A first electromagnet (28) is arranged on the side of the telescopic plate (27) away from the U-shaped storage groove (18). The tooling frame (15) is equipped with a horizontally arranged pusher telescopic motor (30) along the length of the partition positioning plate (16) at one end. The telescopic shaft of the pusher telescopic motor (30) faces the partition positioning plate (16) and is connected to a pusher plate (31). The lower edge of the pusher plate (31) is not lower than the upper end of the partition positioning plate (16). On the side of the pusher plate (31) facing the partition positioning plate (16), there are multiple partition slots (32) that correspond one-to-one with the partition positioning grooves (17). The tooling frame (15) is located away from the partition positioning plate (16). One end of the pusher telescopic motor (30) is equipped with a rotary motor (33). The power output shaft of the rotary motor (33) is connected to a horizontally arranged housing (1) positioning plate. The upper end of the housing (1) positioning plate is provided with a housing (1) positioning groove with openings at both ends. The tooling frame (15) is equipped with a horizontally arranged blocking telescopic motor (36) arranged along its length direction at the end of the housing (1) positioning plate away from the partition positioning plate (16). The telescopic shaft of the blocking telescopic motor (36) faces the partition positioning plate (16) and is connected to a baffle (37). The tooling frame (15) is provided with U-shaped cover positioning grooves (38) on both sides of the housing (1) positioning plate perpendicular to the blocking telescopic motor (36). The tooling frame (15) is provided with a cover mounting telescopic motor (39) on the side of each U-shaped cover positioning groove (38) away from the housing (1) positioning groove. The telescopic shaft of the cover mounting telescopic motor (39) faces the housing (1) positioning plate and is connected to a cover connecting plate (40). A second electromagnet (41) is provided on the side of the cover connecting plate (40) away from the housing (1) positioning plate.

7. The assembly fixture for a heat exchanger according to claim 6, characterized in that, The U-shaped storage trough (18) has push grooves (19) on both sides of its length. Each push groove (19) of the U-shaped storage trough (18) has a conveyor frame (20) on its outer side. Each conveyor frame (20) has a vertically arranged drive shaft (21) rotatably connected to both ends. Each conveyor frame (20) is equipped with a drive motor (22) for driving the corresponding drive shaft (21) to rotate. Each conveyor frame (20) has a conveyor belt (23) movably arranged inside, which is fitted with two drive shafts (21). Each conveyor belt (23) has multiple push strips (24) evenly spaced on its outer side. The distance between each pair of push strips (24) is equal to the thickness of the heat-conducting insulating sheet (2) plus the thickness of the separator (3).

8. The assembly fixture for a heat exchanger according to claim 6, characterized in that, The plate (27) facing the U-shaped storage groove (18) has multiple partition slots (29) that cooperate with the partition strip (3), and the two sides of the opening of each partition slot (29) expand outward.

9. The assembly fixture for a heat exchanger according to claim 6, characterized in that, Each spacer slot (32) expands upward and outward from the upper middle part.

10. A method for assembling a heat exchanger, using the assembly fixture for a heat exchanger as described in claim 7, characterized in that, Includes the following steps: S1. Arrange multiple heat-conducting insulating sheets (2) neatly and place them into the U-shaped storage slot (18). Place the housing (1) at the upper end of the positioning slot of the housing (1). S2. The retractable motor (25) extends to drive the retractable plate (27) into the U-shaped storage slot (18). When the retractable plate (27) contacts a heat-conducting diaphragm (2), the first electromagnet (28) is energized to generate magnetism and attract the heat-conducting diaphragm (2). Then the retractable motor (25) shortens, so that the retractable plate (27) carries the heat-conducting diaphragm (2) to the upper part of the diaphragm positioning plate (16). After that, the retractable motor (26) extends to drive the retractable plate (27) to carry the heat-conducting diaphragm (2) downward, so that the heat-conducting diaphragm (2) is inserted downward into the corresponding diaphragm positioning slot (17) and the corresponding diaphragm slot (32). This step is repeated so that each diaphragm positioning slot (17) of the diaphragm positioning plate (16) is filled with a heat-conducting diaphragm (2). S3. The blocking telescopic motor (36) extends, driving the baffle (37) to extend into the positioning groove of the housing (1) and contact one end of the housing (1). The pusher telescopic motor (30) extends, driving the pusher plate (31) to push all the heat-conducting partitions (2) on the partition positioning plate (16) into the housing (1) until all the heat-conducting partitions (2) are inserted into the housing (1). After completion, the blocking telescopic motor (36) and the pusher telescopic motor (30) are reset. S4. Place a sealing cover (5) in each of the two U-shaped cover positioning grooves (38). The second electromagnet (41) is energized to generate magnetism, causing the cover connecting plate (40) to attract the corresponding sealing cover (5). Sealant is applied to the edge of the opening end of each sealing cover (5). S5. The rotating motor (33) drives the positioning plate of the housing (1) to rotate the housing (1) by 90 degrees, so that its two ends face the corresponding sealing cover (5). S6. The telescopic motors (39) installed at both ends of the cover extend simultaneously, driving the connecting plates (40) of the cover at both ends to carry the sealing cover (5) to approach the two ends of the housing (1), so that the cover at both ends is in close contact with the two open ends of the housing (1). Finally, the second electromagnet (41) is de-energized, and the heat exchanger is removed to complete the assembly of the heat exchanger.

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