Bypass flow sealing structure for all-welded lamella heat exchanger

Abstract

The utility model discloses a bypass flow sealing structure for an all-welded lamella heat exchanger, and relates to the technical field of lamella heat exchangers. The heat exchanger comprises a heat exchanger body, the heat exchanger body comprises four stand columns and four side plates, the corresponding sides of the four stand columns are fixedly connected with a plurality of first installation frames, a containing cavity is formed in the inner sides of the four stand columns, a heat exchange core is connected into the containing cavity in a sleeved mode, and the top and the bottom of the containing cavity are both connected with top plates in a sleeved mode. A sealing assembly is arranged on the inner side of the side plate. The sealing assembly is arranged, specifically, after the connecting plate is installed on the extrusion plate, the side plates are installed on the first installation frame and the second installation frame, then the rotating handle is rotated clockwise to drive the threaded rod to rotate, the extrusion plate can push the connecting plate, the sealing gasket is tightly attached to the surface of the stand column and the surface of the partition plate, and therefore the sealing effect is improved; and the connecting plate can uniformly disperse the extrusion force, and the sealing gasket can be prevented from loosening by uniformly extruding the sealing gasket.

Description

Technical Field

[0001] This utility model belongs to the technical field of plate and shell heat exchangers, and in particular relates to a bypass sealing structure for a fully welded plate and shell heat exchanger. Background Technology

[0002] In fully welded plate-and-shell heat exchangers, the main function of the bypass sealing structure is to prevent fluid leakage during heat exchange through the gaps between the plates and the shell, and between the plates themselves. Effective sealing ensures that the fluid flows along predetermined channels for heat exchange.

[0003] In existing bypass sealing structures, a gasket is usually installed on the side plate to serve as a bypass seal. However, after the side plate is installed, the gasket is difficult to be subjected to uniform pressure, which can cause the gasket to loosen and create gaps, leading to liquid leakage. Therefore, we propose a bypass sealing structure for fully welded plate-shell heat exchangers. Utility Model Content

[0004] The purpose of this utility model is to provide a bypass sealing structure for a fully welded plate-shell heat exchanger. By setting a sealing assembly, specifically by installing a connecting plate on a pressing plate and then installing a side plate on mounting frame one and mounting frame two, and then rotating the handle clockwise to drive the threaded rod to rotate, the pressing plate will push the connecting plate, making the sealing gasket tightly adhere to the surface of the column and the partition plate, thereby improving the sealing effect. In addition, the connecting plate can evenly distribute the extrusion pressure. By evenly compressing the sealing gasket, it can prevent the sealing gasket from becoming loose. This solves the problem in existing bypass sealing structures where the installed sealing gasket is difficult to be subjected to uniform pressure, which leads to the sealing gasket being prone to loosening, resulting in gaps and liquid leakage.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a bypass sealing structure for a fully welded plate-shell heat exchanger, comprising a heat exchanger body, which includes four columns and four side plates. Several mounting frames are fixedly connected to corresponding sides of each of the four columns. A placement cavity is formed inside each of the four columns, and a heat exchange core is fitted into the placement cavity. Top plates are fitted to the top and bottom of each placement cavity. A sealing assembly is provided inside each side plate, and a compression assembly is provided between the sealing assembly and the side plate. The sealing assembly includes a connecting plate, and the side of the connecting plate away from the side plate is fixedly connected to... The extrusion assembly includes an extrusion plate with a sealing gasket. Limiting plates are fixedly connected to the top and bottom of the extrusion plate on the side away from the connecting plate. A limiting ring is fixedly connected to the center of the limiting plate on the side facing the side plate. A threaded rod is threadedly connected to the center of the side plate. A handle is fixedly connected to the outer end of the threaded rod, and a convex shaft is fixedly connected to the inner end of the threaded rod. The mounting frame is fixed to the column by welding. The heat exchange core is a fully welded heat exchange core. The sealing gasket is used to contact the surface of the column and the surface of the partition plate, thereby achieving a sealing function.

[0007] Furthermore, each of the four corners of the connecting plate facing the side plate is fixedly connected to a positioning block, and each of the four corners of the side plate facing the connecting plate is fixedly connected to a positioning ring that engages with the positioning block. Two sockets are fixedly connected to the side of the connecting plate facing the side plate. After installation, the outer surface of the sealing gasket will contact the surface of the column and the surface of the partition, respectively. The four side plates are distributed on the four sides of the heat exchanger. When the connecting plate is pushed, it will cause the positioning block to slide within the positioning ring, thereby improving the stability during movement.

[0008] Furthermore, the socket has inner grooves at both the top and bottom. A triangular locking head is slidably connected inside the inner groove, and a stabilizing rod is slidably connected inside the triangular locking head. A spring is sleeved on the outside of the stabilizing rod. One end of the spring is connected to the stabilizing rod, and the other end of the spring is connected to the inner wall of the inner groove. The side of the stabilizing rod away from the triangular locking head is fixedly connected to the inner wall of the inner groove. Since the outer side of the triangular locking head is set with a triangular bevel, it can be easily pushed into the inner groove by pressing or pulling it forcefully during installation and disassembly.

[0009] Furthermore, the extrusion plate has two slots inside that mate with the socket for positioning. The outer side of the triangular clip is set with a triangular bevel. The connecting plate is inserted into the extrusion plate through the socket. The outer surface of the limiting plate is slidably limited to the inner wall of the side plate. The convex shaft is rotatably connected inside the limiting ring. The threaded rod is rotatably connected to the limiting ring through the convex shaft. Through the cooperation between the convex shaft and the limiting ring, the threaded rod can smoothly push or pull the extrusion plate when rotating.

[0010] Furthermore, a first mounting frame is fixedly connected to the outer side of the column, and a second mounting frame is fixedly connected to the outer side of the top plate. The top plate is fixedly connected to the column by bolts, and the side plate is fixedly connected to the first mounting frame and the second mounting frame by bolts respectively. The cooperation of the first mounting frame and the second mounting frame facilitates the installation and fixing of the side plate.

[0011] This utility model has the following beneficial effects:

[0012] 1. This utility model sets up a sealing component, specifically by installing the connecting plate on the extrusion plate, installing the side plate on the first and second mounting frames, and then rotating the handle clockwise to drive the threaded rod to rotate. The extrusion plate will push the connecting plate, so that the sealing gasket is tightly attached to the surface of the column and the partition, thereby improving the sealing effect. In addition, the connecting plate can evenly distribute the extrusion force. By evenly extruding the sealing gasket, the loosening of the sealing gasket can be avoided.

[0013] 2. This utility model features a socket, specifically, the connecting plate is inserted into the slot on the extrusion plate through the socket. When the triangular clip passes through the slot, it pops out under elastic force, thereby locking and fixing the connecting plate, which facilitates the installation of the connecting plate. When the sealing gasket needs to be replaced, the connecting plate is pulled forcefully, so that the triangular clip is pushed into the inner groove. Continuing to pull can disassemble the connecting plate, which facilitates subsequent replacement and maintenance work.

[0014] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the heat exchanger body of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the side plate of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the side plate of this utility model;

[0020] Figure 5 This is a schematic diagram of the overall structure of the connecting plate of this utility model;

[0021] Figure 6 This utility model Figure 5 A magnified structural diagram of A in the middle;

[0022] Figure 7 This is a schematic diagram of the internal cross-sectional structure of the side plate of this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Heat exchanger body; 11. Column; 111. Mounting frame one; 112. Partition plate; 12. Top plate; 121. Mounting frame two; 13. Side plate; 131. Positioning ring; 14. Heat exchanger core; 2. Sealing assembly; 21. Connecting plate; 22. Sealing gasket; 23. Positioning insert; 24. Socket; 241. Inner groove; 242. Triangular clamp; 243. Stabilizing rod; 244. Spring; 3. Extrusion assembly; 31. Extrusion plate; 32. Slot; 33. Limiting plate; 34. Limiting ring; 35. Threaded rod; 351. Rotary handle; 352. Protruding shaft. Detailed Implementation

[0025] 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 scope of protection of the present utility model.

[0026] Please see Figures 1-7As shown, this utility model is a bypass sealing structure for a fully welded plate-shell heat exchanger, including a heat exchanger body 1. The heat exchanger body 1 includes four columns 11 and four side plates 13. Several mounting frames 111 are fixedly connected to one side of each of the four columns 11. A placement cavity is formed inside the four columns 11, and a heat exchange core 14 is sleeved in the placement cavity. A top plate 12 is sleeved on the top and bottom of the placement cavity. A sealing assembly 2 is provided inside the side plate 13. A compression assembly 3 is provided between the sealing assembly 2 and the side plate 13. The sealing assembly 2 includes a connecting plate 21, and a sealing gasket 22 is fixedly connected to the side of the connecting plate 21 away from the side plate 13. The compression assembly 3 includes a compression plate 31, and limit plates are fixedly connected to the top and bottom of the side of the compression plate 31 away from the connecting plate 21. 33. A limiting ring 34 is fixedly connected to the center of the side plate 13 facing the limiting plate 33. A threaded rod 35 is threadedly connected to the center of the side plate 13. A handle 351 is fixedly connected to the outer end of the threaded rod 35, and a convex shaft 352 is fixedly connected to the inner end of the threaded rod 35. After the connecting plate 21 is installed on the extrusion plate 31, the side plate 13 is installed on the first mounting frame 111 and the second mounting frame 121. Then, the handle 351 is rotated clockwise to drive the threaded rod 35 to rotate. The extrusion plate 31 will push the connecting plate 21, so that the sealing gasket 22 is tightly attached to the surface of the column 11 and the surface of the partition 112, thereby improving the sealing effect. The connecting plate 21 can evenly distribute the extrusion pressure. By evenly extruding the sealing gasket 22, the loosening of the sealing gasket 22 can be avoided.

[0027] Positioning blocks 23 are fixedly connected to the four corners of the side plate 21 facing the side plate 13. Positioning rings 131 that cooperate with the positioning blocks 23 are fixedly connected to the four corners of the side plate 13 facing the connecting plate 21. Two sockets 24 are fixedly connected to the side plate 21 facing the side plate 13. After installation, the outer surface of the sealing gasket 22 will contact the surface of the column 11 and the surface of the partition 112 respectively. The four side plates 13 are distributed on the four sides of the heat exchanger.

[0028] The socket 24 has inner grooves 241 at both the top and bottom. A triangular clip 242 is slidably connected inside the inner groove 241, and a stabilizing rod 243 is slidably connected inside the triangular clip 242. A spring 244 is sleeved on the outside of the stabilizing rod 243. One end of the spring 244 is connected to the stabilizing rod 243, and the other end of the spring 244 is connected to the inner wall of the inner groove 241. The side of the stabilizing rod 243 away from the triangular clip 242 is fixedly connected to the inner wall of the inner groove 241. The connecting plate 21 is inserted into the slot 32 on the extrusion plate 31 through the socket 24. When the triangular clip 242 passes through the slot 32, it pops out under the action of elasticity, thereby locking and fixing the connecting plate 21, which is convenient for the installation of the connecting plate 21. When the sealing gasket 22 needs to be replaced, the connecting plate 21 is pulled forcefully to push the triangular clip 242 into the inner groove 241. The connecting plate 21 can be disassembled by continuously pulling, which is convenient for subsequent replacement and maintenance.

[0029] The extrusion plate 31 has two slots 32 inside that are positioned and matched with the socket 24. The outer side of the triangular clip 242 is set with a triangular bevel. The connecting plate 21 is inserted into the extrusion plate 31 through the socket 24. The outer surface of the limiting plate 33 is slidably limited and matched with the inner wall of the side plate 13. The convex shaft 352 is rotatably connected inside the limiting ring 34. The threaded rod 35 is rotatably connected to the limiting ring 34 through the convex shaft 352.

[0030] The outer side of the column 11 is fixedly connected to the mounting frame 111, and the outer side of the top plate 12 is fixedly connected to the mounting frame 121. The top plate 12 is fixedly connected to the column 11 by bolts, and the side plate 13 is fixedly connected to the mounting frame 111 and the mounting frame 121 by bolts respectively.

[0031] One specific application of this embodiment is:

[0032] In use, the bottom top plate 12 is installed at the bottom of the four columns 11. Then, the heat exchange core 14 is placed between the four heat exchange cores 14, and the top plate 12 is installed on top of the heat exchange core 14. After the top plate 12 is installed, the second mounting frame 121 will be aligned with the first mounting frame 111. Then, the connecting plate 21 is inserted into the slot 32 on the extrusion plate 31 through the socket 24. After the triangular clip 242 contacts the extrusion plate 31, it will be pushed into the inner groove 241. The triangular clip 242 then slides on the stabilizer 243 and compresses the spring 244. When the triangular clip 242 passes through the slot 32, it will pop out under the action of elasticity, thereby locking and fixing the connecting plate 21, completing the docking of the connecting plate 21. Then, the side plate 13 is installed and fixed with bolts through the first mounting frame 111 and the second mounting frame 121. After the side plate 13 is installed, the connecting plate The sealing gasket 22 on 21 will contact the surface of the column 11 and the surface of the partition 112, thereby playing a sealing role. Then, turn the handle 351 clockwise to drive the threaded rod 35 to move into the heat exchanger body 1. The threaded rod 35 will drive the extrusion plate 31 to move together under the action of the convex shaft 352 and the limiting ring 34. Since the limiting plate 33 slides inside the side plate 13, it plays a limiting role, causing the extrusion plate 31 to move in a straight line. At the same time, the extrusion plate 31 will push the connecting plate 21 when it moves, so that the sealing gasket 22 is in close contact with the surface of the column 11 and the surface of the partition 112. When the connecting plate 21 moves, it will drive the positioning block 23 to slide on the positioning ring 131. The connecting plate 21 can evenly distribute the extrusion pressure, thereby improving the sealing effect and preventing the sealing gasket 22 from becoming loose. Then, the other side plates 13 can be installed in the same way.

[0033] When the sealing gasket 22 needs to be replaced after long-term use, first remove the side plate 13. After removal, pull the connecting plate 21 forcefully so that the triangular clip 242 is pushed into the inner groove 241. Continue to pull to remove the connecting plate 21, which will facilitate the subsequent replacement of the sealing gasket 22.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A kind of full-welded plate shell heat exchanger with by-pass sealing structure, comprising heat exchanger main body (1), the heat exchanger main body (1) includes four columns (11) and four side plates (13), and the corresponding side of four columns (11) is fixedly connected with a plurality of installation frame one (111), characterized by: Four inside the column (11) form a cavity, the cavity is sleeved with heat exchange core (14), the cavity top and bottom are sleeved with top plate (12), the inside of side plate (13) is provided with sealing assembly (2), the sealing assembly (2) and side plate (13) are provided with extrusion assembly (3), the sealing assembly (2) includes connecting plate (21), the side away from the side plate (13) of connecting plate (21) is fixedly connected with sealing pad (22), the extrusion assembly (3) includes extrusion plate (31), the top and bottom of the side away from the connecting plate (21) of extrusion plate (31) are fixedly connected with limit plate (33), the limit plate (33) is fixedly connected with limit ring (34) at the center of the side towards the side plate (13), the center of the side plate (13) is threadedly connected with threaded rod (35), one end of the outer side of threaded rod (35) is fixedly connected with handle (351), one end of the inner side of threaded rod (35) is fixedly connected with convex shaft (352).

2. The shunt flow seal structure of claim 1, wherein, The side towards the side plate (13) of connecting plate (21) is fixedly connected with positioning plug (23) at four corners, the side towards the connecting plate (21) of side plate (13) is fixedly connected with positioning ring (131) matched with positioning plug (23) at four corners, the side towards the side plate (13) of connecting plate (21) is fixedly connected with two sockets (24).

3. The shunt flow seal structure of claim 2, wherein, The outer surface of sealing pad (22) is in contact with the surface of column (11) and the surface of partition (112) after installation, four side plates (13) are respectively distributed on the four sides of heat exchanger.

4. The shunt flow seal structure of claim 3, wherein, The top and bottom of socket (24) are provided with inner groove (241), the inner groove (241) is slidably connected with triangular chuck (242), the triangular chuck (242) is slidably connected with stabilizing rod (243), the outer side of stabilizing rod (243) is sleeved with spring (244), one end of spring (244) is connected with stabilizing rod (243), the other end of spring (244) is connected with inner wall of inner groove (241), the side away from triangular chuck (242) of stabilizing rod (243) is fixedly connected with inner wall of inner groove (241).

5. The shunt flow seal structure of claim 4, wherein, The inner side of extrusion plate (31) is provided with two insertion grooves (32) matched with socket (24), the outer side of triangular chuck (242) is provided with triangular inclined surface, the connecting plate (21) is inserted with extrusion plate (31) through socket (24).

6. The shunt flow seal structure of claim 4, wherein, The outer surface of limit plate (33) is in sliding limit cooperation with the inner wall of side plate (13), the convex shaft (352) is rotatably connected in the limit ring (34), the threaded rod (35) is rotatably connected with limit ring (34) through convex shaft (352).

7. The shunt flow seal structure of claim 4, wherein, The outer side of column (11) is fixedly connected with mounting frame one (111), the outer side of top plate (12) is fixedly connected with mounting frame two (121), the top plate (12) is fixedly connected with column (11) through bolt, the side plate (13) is fixedly connected with mounting frame one (111) and mounting frame two (121) through bolt.

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