Mesh type heat exchanger

Abstract

According to the technical scheme, the net-shaped heat exchanger is characterized in that the net-shaped heat exchanger comprises a fixed frame, a movable frame is arranged on one side of the fixed frame, a supporting rod is arranged on one side of the movable frame, a bottom plate is fixedly installed on the bottom face of the fixed frame and the bottom face of the supporting rod, and a plurality of heat conduction plates are arranged between the fixed frame and the movable frame; a plurality of joints are arranged on one side of the fixed frame and one side of the movable frame; the pre-tightening assembly is arranged on one side of the supporting rod and used for pre-tightening before the fastening nut is screwed in, by arranging the pre-tightening rod, when the heat conduction plates are assembled and the screw rod is screwed in the fastening nut, pressure needs to be applied, the movable frame needs to be pressed, it is guaranteed that the heat conduction plates are stacked together, the connecting column is sleeved with the spring, and therefore the heat conduction plates can be assembled conveniently. When the movable plate moves towards the moving frame under the action of spring force, the pre-tightening rod is driven to tightly abut against the moving frame, it is guaranteed that components such as a heat conduction plate cannot loosen in the assembling process, and a worker can assemble and maintain the heat exchanger conveniently.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically to a mesh heat exchanger. Background Technology

[0002] After the plates are assembled, they form a mesh-like fluid channel, which can be called a mesh heat exchanger. Hot and cold fluids flow through the two sides of the heat exchanger respectively. The hot fluid releases heat on the hot side plate, and the cold fluid absorbs heat on the cold side plate, thus realizing heat transfer. Heat is mainly transferred through two modes: convection and conduction. Convection heat transfer is the process of fluid flow carrying away heat, while conduction heat transfer is the process of heat transfer through the contact between the plate and the fluid.

[0003] For example, Chinese patent publication number CN221484275U discloses a plate heat exchanger, including: a locking structure, a fastening plate, a fastening screw, a frame, and a heat exchanger assembly; the heat exchanger assembly is disposed between the fastening plate and the frame; one end of the fastening screw passes through the fastening plate and the frame, and the locking structure is sleeved on the outer wall of the fastening screw; the locking structure includes: a bearing housing, a pressure bearing, and a locking nut; the bearing housing is disposed close to the fastening plate, and the locking nut and the bearing housing are respectively disposed on opposite sides of the pressure bearing. When the locking nut is rotated to tighten, the rolling of the pressure bearing balls reduces the frictional resistance between the locking nut and the bearing housing, so that the torque of the wrench acts directly on the locking nut and the fastening screw, greatly improving the effective power and effectively improving the efficiency of plate heat exchanger disassembly, cleaning, and installation, and shortening the plate heat exchanger cleaning operation cycle.

[0004] Currently, plate heat exchangers still have some shortcomings. For example, when assembling the heat exchanger assembly, workers need to apply pressure to stack the heat-conducting plates together to prevent loosening during fastening, which would result in inadequate fastening. This requires multiple workers to cooperate, making assembly and maintenance inconvenient. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a mesh heat exchanger that solves the problems mentioned in the background section.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A mesh heat exchanger includes: a fixed frame, a movable frame on one side of the fixed frame, a support rod on one side of the movable frame, a base plate fixedly mounted on the bottom surface of the fixed frame and the support rod, a plurality of heat-conducting plates disposed between the fixed frame and the movable frame, a plurality of joints on one side of the fixed frame and the movable frame, a plurality of fastening holes on one side of the fixed frame and the movable frame, a screw movably fitted inside the fastening holes, and fastening nuts threaded to both ends of the screw; and a pre-tightening assembly disposed on one side of the support rod for pre-tightening before the fastening nuts are screwed in.

[0008] Preferably, the pretensioning assembly includes: two connecting holes, the two connecting holes being opened on one side of the support rod, a connecting post being movably sleeved inside the connecting holes, a fixing plate being fixedly installed at one end of the connecting post, a movable plate being sleeved outside the connecting post, a pretensioning rod being fixedly installed on one side of the movable plate, a movable hole being opened on one side of the support rod, the pretensioning rod passing through the movable hole and abutting against the movable frame, and a spring being provided outside the connecting post.

[0009] Preferably, a threaded hole is provided on one side of the connecting column, and a fastening bolt is threaded into the inside of the threaded hole.

[0010] Preferably, the top and bottom surfaces of the fixed frame and the movable frame are provided with grooves, wherein upper pressure rods are fixedly installed on the inner bottom surfaces of two of the grooves, and lower pressure rods are fixedly installed on the inner bottom surfaces of the other two grooves.

[0011] Preferably, guide frames are fixedly installed on both the top and bottom surfaces of the movable frame, and a roller is rotatably installed on one side of the inside of the guide frame.

[0012] Preferably, one end of the pretensioning rod is movably engaged with a rubber sleeve.

[0013] In summary, the present invention has the following main advantages:

[0014] By setting a pre-tightening rod, pressure is applied when the screw is tightened into the fastening nut during the assembly of the heat transfer plate, pressing against the moving frame to ensure that the heat transfer plates are stacked together. A spring sleeve is installed outside the connecting column. When the movable plate moves towards the moving frame under the spring force, it causes the pre-tightening rod to tightly press against the moving frame. The rubber sleeve at one end of the pre-tightening rod effectively prevents direct contact between the metal end of the pre-tightening rod and the surface of the moving frame, preventing scratches or wear on the surface of the moving frame during installation, commissioning, or equipment operation. This ensures that components such as the heat transfer plate will not loosen during assembly, facilitating the assembly and maintenance of the heat exchanger by staff. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the upper pressure rod structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the support rod structure of this utility model;

[0018] Figure 4 yes Figure 2 A magnified schematic diagram of the local structure at point A in the middle.

[0019] Reference numerals: 1. Fixed frame; 2. Movable frame; 3. Base plate; 4. Heat-conducting plate; 5. Joint; 6. Fastening hole; 7. Screw; 8. Support rod; 9. Fastening nut; 10. Preload rod; 11. Movable hole; 12. Fixed plate; 13. Movable plate; 14. Connecting column; 15. Connecting hole; 16. Spring; 17. Threaded hole; 18. Fastening bolt; 19. Guide frame; 20. Roller; 21. Rubber sleeve; 22. Upper pressure rod; 23. Lower pressure rod; 24. Groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] refer to Figures 1-4 A mesh heat exchanger includes: a fixed frame 1, a movable frame 2 on one side of the fixed frame 1, a support rod 8 on one side of the movable frame 2, a base plate 3 fixedly installed on the bottom surface of the fixed frame 1 and the support rod 8, a plurality of heat-conducting plates 4 between the fixed frame 1 and the movable frame 2, a plurality of joints 5 on one side of the fixed frame 1 and the movable frame 2, a plurality of fastening holes 6 on one side of the fixed frame 1 and the movable frame 2, a screw 7 movably fitted inside the fastening hole 6, and fastening nuts 9 threaded to both ends of the screw 7; and a pre-tightening assembly, which is located on one side of the support rod 8 and is used for pre-tightening before screwing in the fastening nuts 9.

[0022] By setting up heat-conducting plates 4, which are composed of many stacked heat-conducting plates 4, a large heat exchange area can be provided in a small volume. The narrow channels formed increase the contact area between the fluid and the plates, enabling heat to be transferred over a larger area and improving the efficiency of heat transfer.

[0023] As a further embodiment of this utility model, the pre-tightening assembly includes: two connecting holes 15, which are opened on one side of the support rod 8; a connecting post 14 is movably sleeved inside the connecting holes 15; a fixing plate 12 is fixedly installed at one end of the connecting post 14; a movable plate 13 is sleeved on the outside of the connecting post 14; a pre-tightening rod 10 is fixedly installed on one side of the movable plate 13; a movable hole 11 is opened on one side of the support rod 8; the pre-tightening rod 10 passes through the movable hole 11 and abuts against the movable frame 2; and a spring 16 is provided on the outside of the connecting post 14.

[0024] By setting the pre-tightening rod 10, when the screw 7 is tightened into the fastening nut 9 during the assembly of the heat-conducting plate 4, pressure needs to be applied to press against the moving frame 2, ensuring that the heat-conducting plate 4 is stacked together. The spring 16 is sleeved on the outside of the connecting column 14. When the movable plate 13 moves towards the moving frame 2 under the force of the spring 16, it drives the pre-tightening rod 10 to press tightly against the moving frame 2, ensuring that the heat-conducting plate 4 and other components will not loosen during the assembly process, making it convenient for staff to assemble and maintain the heat exchanger.

[0025] As a further embodiment of this utility model, a threaded hole 17 is provided on one side of the connecting column 14, and a fastening bolt 18 is threadedly connected inside the threaded hole 17.

[0026] By setting the fastening bolt 18, when the spring 16 needs to be replaced, the operator can unscrew the fastening bolt 18 to disengage the connecting post 14 from the connecting hole 15, thereby facilitating the maintenance of the preload assembly.

[0027] As a further embodiment of this utility model, grooves 24 are provided on the top and bottom surfaces of the fixed frame 1 and the movable frame 2, wherein upper pressure rods 22 are fixedly installed on the inner bottom surfaces of two grooves 24, and lower pressure rods 23 are fixedly installed on the inner bottom surfaces of the other two grooves 24.

[0028] By setting the upper pressure rod 22, and the lower pressure rod 23 respectively installed in the groove 24 of the fixed frame 1 and the movable frame 2, the upper and lower components can be limited in the vertical direction, effectively limiting the relative displacement that may occur between the fixed frame 1 and the movable frame 2 during use, making the overall structure of the heat exchanger more stable.

[0029] As a further embodiment of this utility model, guide frames 19 are fixedly installed on both the top and bottom surfaces of the movable frame 2, and a roller 20 is rotatably installed on one side of the inside of the guide frame 19.

[0030] By setting the roller 20, when the moving frame 2 moves, the roller 20 forms rolling friction with the upper pressure rod 22 and the lower pressure rod 23, which can greatly reduce the friction force experienced by the moving frame 2 when it moves, making the movement smoother.

[0031] As a further embodiment of this utility model, a rubber sleeve 21 is movably engaged at one end of the pretensioning rod 10;

[0032] By setting a rubber sleeve 21, which is relatively soft, the metal end of the pretension rod 10 can be effectively prevented from directly contacting the surface of the movable frame 2, thus preventing the pretension rod 10 from scratching or abrading the surface of the movable frame 2 during installation, commissioning or equipment operation.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gauze-type heat exchanger, characterized by comprising: The utility model relates to a heat dissipation device for electronic equipment, including: The one side of fixed frame (1) is provided with mobile frame (2), one side of mobile frame (2) is provided with support rod (8), the bottom surface fixed mounting of fixed frame (1) and support rod (8) is equipped with bottom plate (3), and a plurality of heat conduction plates (4) are arranged between fixed frame (1) and mobile frame (2), a plurality of joints (5) are opened in one side of fixed frame (1) and mobile frame (2), a plurality of fastening holes (6) are opened in one side of fixed frame (1) and mobile frame (2), the inside movable sleeve of fastening hole (6) is equipped with screw rod (7), and the both ends of screw rod (7) are threadedly connected with fastening nut (9); Pre-tightening assembly is arranged at one side of support rod (8), is used for pre-tightening before screwing into fastening nut (9).

2. A gauze-type heat exchanger according to claim 1, wherein The pre-tightening assembly includes: Two connecting holes (15) are opened in one side of support rod (8), the inside movable sleeve of connecting hole (15) is equipped with connecting column (14), one end of connecting column (14) is fixedly installed with fixed plate (12), the outside sleeve of connecting column (14) is equipped with movable plate (13), one side of movable plate (13) is fixedly installed with pre-tightening rod (10), one side of support rod (8) is equipped with movable hole (11), pre-tightening rod (10) passes through movable hole (11) and is in abutment with mobile frame (2), and the outside of connecting column (14) is equipped with spring (16).

3. A gauze-type heat exchanger according to claim 2, wherein One side of connecting column (14) is equipped with threaded hole (17), and the inside threaded hole (17) is threadedly connected with fastening bolt (18).

4. A gauze-type heat exchanger according to claim 1, wherein The top surface and the bottom surface of fixed frame (1) and mobile frame (2) are all equipped with recess (24), the inside bottom surface of two recesses (24) is fixedly installed with upper pressing rod (22), and the inside bottom surface of other two recesses (24) is fixedly installed with lower pressing rod (23).

5. A gauze-type heat exchanger according to claim 4, wherein The top surface and the bottom surface of mobile frame (2) are all fixedly installed with guide frame (19), and one side rotating installation of guide frame (19) is equipped with roller (20).

6. A gauze-type heat exchanger according to claim 2, wherein One end of pre-tightening rod (10) is movably connected with rubber sleeve (21).

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