Detachable plate heat exchanger with automatic pressure regulating structure

Abstract

A detachable plate heat exchanger with an automatic pressure regulating structure comprises a first vertical plate and a sleeve, the sleeve is fixedly connected to the outer wall of the first vertical plate, a sliding rod is slidably connected to the interior of the sleeve, a second vertical plate is fixedly connected to the end of the sliding rod, and the first vertical plate and the second vertical plate are fixedly connected with the left end and the right end of a heat exchange plate respectively. The second vertical plate drives the fixing rod to move, the fixing rod drives the shell to move, the shell sleeves the outer wall of the support, a first handle is rotated, the first handle drives a first screw to rotate, the first screw drives a wedge-shaped block to move, the wedge-shaped block drives a moving plate to slide, the moving plate drives two pressing rods to move, the two pressing rods make contact with the shell, and rotation of the first handle is stopped. The shell is positioned through the two pressing rods, then installation of the first vertical plate, the second vertical plate and the heat exchange plate is achieved, disassembly of the first vertical plate, the second vertical plate and the heat exchange plate can be achieved by rotating the first handle reversely, time and labor are saved during disassembly and assembly, and the disassembly and assembly efficiency of the heat exchange plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a detachable plate heat exchanger with an automatic pressure regulating structure. Background Art

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid, also known as a heat exchanger.

[0003] For example, the detachable plate heat exchanger with automatic pressure regulating structure with patent number CN216694599U includes a fixed plate, a movable plate, a heat exchange plate, and a pressure regulating structure. The pressure regulating structure includes an expansion tank, a support frame, a fixed frame, and a connecting pipe. A through hole is drilled on the movable plate at a position corresponding to the hot medium inlet or the cold medium inlet of the fixed plate. The connecting pipe passes through the through hole and is inserted into the corner hole of the heat exchange plate to communicate with the hot medium or the cold medium. The connecting pipe is welded to the movable plate, and the other end of the connecting pipe is connected to the expansion tank. The above document still has deficiencies. When in use, a hole is opened at the position of the cold and hot medium inlet corner hole of the fixed plate of the movable plate of the detachable plate heat exchanger, and a small bladder-type expansion tank structure is added to connect, so as to realize the function of the detachable plate heat exchanger to automatically adjust the pressure after pressure fluctuations occur in the system, thereby ensuring the detachable When pressure fluctuations occur in the actual operating system of the plate heat exchanger, the equipment does not stop, is not damaged, and operates safely, ensuring continuous operation of the production and use process and avoiding economic losses caused by equipment damage and shutdown. However, the end plates on both sides of the heat exchanger are provided with a number of clamping screws to limit the two sides of the heat exchanger plate. Before removing the heat exchanger plate due to failure, the clamping screws need to be removed one by one. Disassembly and assembly are time-consuming and labor-intensive, reducing the efficiency of disassembly and assembly of the heat exchange plate. At the same time, the above-mentioned document uses a water bag to drive the expansion tank to expand and contract to relieve the pressure of the liquid medium in the heat exchanger. The pressure relief method is relatively unstable, thereby reducing the pressure regulation effect. Summary of the invention

[0004] The utility model aims to solve the problem in the prior art that the efficiency of disassembling and assembling heat exchange plates is reduced, and provides a detachable plate heat exchanger with an automatic pressure regulating structure.

[0005] The utility model adopts a technical solution to solve its technical problems: this detachable plate heat exchanger with an automatic pressure regulating structure includes a first vertical plate and a sleeve, the outer wall of the first vertical plate is fixedly connected to the sleeve, the interior of the sleeve is slidably connected to a sliding rod, the end of the sliding rod is fixedly connected to the second vertical plate, the first vertical plate and the second vertical plate are respectively fixedly connected to the left and right ends of the heat exchange plate, the outer wall of the second vertical plate is fixedly connected to a fixing rod, the outer wall of the first vertical plate is fixedly connected to a bracket, the interior of the bracket is provided with a connecting mechanism, the second vertical plate is fixedly connected to the outer wall of the exhaust pipe, and a pressure relief mechanism is provided on the right side of the exhaust pipe.

[0006] To further improve the connection mechanism, the first screw rod comprises a first screw rod, the outer walls at both ends of the first screw rod are rotatably connected to the bracket through bearings, a first handle is fixedly connected to the end of the first screw rod, a wedge block is threadedly connected to the outer wall of the first screw rod, the outer wall of the wedge block is fitted with a driving plate, the outer wall of the driving plate is slidably connected to the bracket, the driving plate and the bracket are respectively fixedly connected to the two ends of the first spring, the groove set in the driving plate is fitted with the outer wall of the pressure rod, the pressure rod is rotatably connected to the bracket through a pin shaft, the outer wall of the pressure rod is clamped with the shell, and the outer wall of the shell is fixedly connected to the fixing rod.

[0007] To be further improved, the pressure relief mechanism includes a pressure relief pipe, which is fixedly connected to the exhaust pipe through a flange, a cylinder is fixedly connected to the interior of the pressure relief pipe, a connecting rod is slidably connected to the interior of the cylinder, a second spring is arranged inside the cylinder, two ends of the second spring are respectively fixedly connected to the cylinder and the connecting rod, a moving block is fixedly connected to the lower end of the connecting rod, a plug is fixedly connected to the lower part of the moving block, an outer wall of the plug is fitted with two fixed plates, and the two fixed plates are fixedly connected to the inner wall of the pressure relief pipe.

[0008] For further improvement, the second vertical plate is fixedly connected to the outer wall of the fixed cylinder, and the fixed cylinder is rotatably connected to the outer wall of the end of the second screw rod through a bearing.

[0009] For further improvement, a second handle is fixedly connected to the end of the second screw rod, and a threaded barrel is threadedly connected to the outer wall of the second screw rod.

[0010] For further improvement, a piston is fixedly connected to the end of the threaded cylinder, and the outer wall of the piston is slidably connected to the fixed cylinder.

[0011] The beneficial effect of the utility model is as follows: according to the utility model, through the cooperation between the first screw rod, the first handle, the wedge block, the driving plate, the first spring, the pressure rod and the shell, the second vertical plate drives the fixed rod to move, the fixed rod drives the shell to move, the shell is sleeved on the outer wall of the bracket, the first handle is rotated, the first handle drives the first screw to rotate, the first screw drives the wedge block to move, the wedge block drives the moving plate to slide, the moving plate drives the two pressure rods to move, the two pressure rods contact the shell, the first handle is stopped from rotating, the two pressure rods position the shell, and then the installation between the first vertical plate, the second vertical plate and the heat exchange plate is realized, and the disassembly between the first vertical plate, the second vertical plate and the heat exchange plate can be realized by rotating the first handle in the opposite direction, and the disassembly and assembly are both time-saving and labor-saving, thereby improving the disassembly and assembly efficiency of the heat exchange plate.

[0012] Through the cooperation among the pressure relief pipe, cylinder, connecting rod, second spring, moving block, plug block and fixed plate, the air pressure in the heat exchange plate enters into the exhaust pipe and then into the pressure relief pipe, the air pressure drives the plug block to move, the plug block drives the moving block to move, the moving block drives the connecting rod to slide, the connecting rod compresses the second spring, the air pressure passes through between the two fixed plates and is discharged from the pressure relief pipe to achieve pressure relief. After the pressure relief is completed, the second spring drives the connecting rod downward under the action of elasticity, thereby driving the plug block to move, the plug block contacts the two fixed plates to block the pressure relief pipe, the pressure relief method is relatively stable, thereby improving the pressure regulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a cross-sectional view of the mechanism of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the connection between the pressure relief pipe, the cylinder and the connecting rod in the utility model;

[0016] Figure 4 It is a structural schematic diagram of the connection between the fixing cylinder, the second screw rod and the second handle in the utility model;

[0017] Figure 5 It is a structural schematic diagram of the connection between the first screw rod, the first handle and the wedge block in the utility model;

[0018] Figure 6 It is a schematic structural diagram of the connection between the first vertical plate, the second vertical plate and the heat exchange plate in the present invention.

[0019] Explanation of the reference numerals: 1. first vertical plate, 2. sleeve, 3. connecting mechanism, 301. first screw, 302. first handle, 303. wedge block, 304. driving plate, 305. first spring, 306. pressure rod, 307. shell, 3a1. slider, 3a2. slide rod, 4. pressure relief mechanism, 401. pressure relief pipe, 402. cylinder, 403. connecting rod, 404. second spring, 405. moving block, 406. plug block, 407. fixed plate, 5. slide rod, 6. second vertical plate, 7. heat exchange plate, 8. fixing rod, 9. bracket, 10. exhaust pipe, 11. fixing cylinder, 12. second screw, 13. second handle, 14. threaded cylinder, 15. piston. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] Embodiment 1: refer to the attached Figure 1-6: In the present embodiment, a detachable plate heat exchanger with an automatic pressure regulating structure includes a first vertical plate 1 and a sleeve 2. The outer wall of the first vertical plate 1 is fixedly connected to the sleeve 2. The inside of the sleeve 2 is slidably connected to a slide rod 5. The slide rod 5 slides inside the sleeve 2. The end of the slide rod 5 is fixedly connected to the second vertical plate 6. The slide rod 5 and the sleeve 2 guide the movement of the second vertical plate 6. The first vertical plate 1 and the second vertical plate 6 are respectively fixedly connected to the left and right ends of the heat exchange plate 7. The outer wall of the second vertical plate 6 is fixedly connected to a fixing rod 8. The outer wall of the first vertical plate 1 is fixedly connected to a bracket 9. A connecting mechanism 3 is arranged inside the bracket 9. The connecting mechanism 3 realizes the connection between the first vertical plate 1 and the second vertical plate 6. The second vertical plate 6 is fixedly connected to the outer wall of the exhaust pipe 10. The exhaust pipe 10 is connected with the heat exchange plate 5, and a pressure relief mechanism 4 is arranged on the right side of the exhaust pipe 10. The pressure relief mechanism 3 facilitates the pressure relief of the heat exchanger. The second vertical plate 6 is fixedly connected with the outer wall of the fixed cylinder 11. The fixed cylinder 11 is connected with the heat exchange plate 7. The fixed cylinder 11 is rotatably connected with the outer wall of the end of the second screw 12 through a bearing. A second handle 13 is fixedly connected to the end of the second screw 12. The second handle 13 drives the second screw 12 to rotate. The outer wall of the second screw 12 is threadedly connected with a threaded cylinder 14. The second screw 12 drives the threaded cylinder 14 to move. A piston 15 is fixedly connected to the end of the threaded cylinder 14. The threaded cylinder 14 drives the piston 15 to slide. The outer wall of the piston 15 is supported by rubber material. The outer wall of the piston 15 is slidably connected with the fixed cylinder 11.

[0022] The connecting mechanism 3 includes a first screw rod 301, a first handle 302, a wedge block 303, a driving plate 304, a first spring 305, a pressure rod 306 and a housing 307. The outer walls of both ends of the first screw rod 301 are rotatably connected to the bracket 9 through bearings. The first handle 302 is fixedly connected to the end of the first screw rod 301, and the first handle 302 drives the first screw rod 301 to rotate. The outer wall of the first screw rod 301 is threadedly connected with the wedge block 303. The first screw 301 drives the wedge block 303 to move. The outer wall of the wedge block 303 fits with the driving plate 304. The wedge block 303 drives the driving plate 304 to move. The outer wall of the plate 304 is slidably connected to the bracket 9, the driving plate 304 slides inside the bracket 9, the driving plate 304 and the bracket 9 are respectively fixedly connected to the two ends of the first spring 305, the first spring 305 makes the driving plate 304 always fit with the wedge block 303 under the elastic action, the groove set in the driving plate 304 fits with the outer wall of the pressure rod 306, the driving plate 304 drives the pressure rod 306 to rotate, the pressure rod 306 is rotatably connected to the bracket 9 through the pin shaft, the outer wall of the pressure rod 306 is clamped with the shell 307, the pressure rod 306 fixes the position of the shell 307, and the outer wall of the shell 307 is fixedly connected to the fixing rod 8;

[0023] The second vertical plate 6 drives the fixing rod 8 to move, and the fixing rod 8 drives the shell 307 to move. The shell 307 is sleeved on the outer wall of the bracket 9. The first handle 302 is rotated, and the first handle 302 drives the first screw 301 to rotate. The first screw 301 drives the wedge block 303 to move, and the wedge block 303 drives the moving plate 304 to slide. The moving plate 304 drives the two pressure rods 306 to move. The two pressure rods 306 contact the shell 307, and the rotation of the first handle 302 is stopped. The two pressure rods 306 position the shell 307, thereby realizing the installation between the first vertical plate 1, the second vertical plate 6 and the heat exchange plate 7. The first handle 302 is rotated in the opposite direction to realize the disassembly between the first vertical plate 1, the second vertical plate and the heat exchange plate 7. The disassembly and assembly are both time-saving and labor-saving, and the disassembly and assembly efficiency of the heat exchange plate 7 is improved.

[0024] The pressure relief mechanism 4 includes a pressure relief pipe 401, a cylinder 402, a connecting rod 403, a second spring 404, a moving block 405, a plug 406 and a fixing plate 407. The pressure relief pipe 401 is fixedly connected to the exhaust pipe 10 through a flange. The cylinder 402 is fixedly connected to the inside of the pressure relief pipe 401. The connecting rod 403 is slidably connected to the inside of the cylinder 402. The connecting rod 403 slides inside the cylinder 402. The second spring 404 is arranged inside the cylinder 402. The two ends of the second spring 404 are respectively connected to the cylinder 402 and the connecting rod 403. The connecting rod 403 is fixedly connected to the second spring 404 under the elastic action to make the connecting rod 403 have the force to move downward, the lower end of the connecting rod 403 is fixedly connected to the moving block 405, the connecting rod 403 moves together with the moving block 405, the lower part of the moving block 405 is fixedly connected to the plugging block 406, the moving block 405 moves together with the plugging block 406, the outer wall of the plugging block 406 is in contact with the two fixing plates 407, the plugging block 406 cooperates with the two fixing plates 407 to block the inside of the pressure relief pipe 401, and the two fixing plates 407 are both fixedly connected to the inner wall of the pressure relief pipe 401;

[0025] The air pressure in the heat exchange plate 7 enters the exhaust pipe 10 and then enters the pressure relief pipe 401. The air pressure drives the plug block 406 to move, and the plug block 406 drives the moving block 405 to move. The moving block 405 drives the connecting rod 403 to slide, and the connecting rod 403 compresses the second spring 404. The air pressure passes through the two fixed plates 407 and is discharged from the pressure relief pipe 401 to achieve pressure relief. After the pressure relief is completed, the second spring 7404 drives the connecting rod 403 to move downward under the elastic action, thereby driving the plug block 406 to move. The plug block 406 contacts the two fixed plates 407 to block the pressure relief pipe 401. The pressure relief method is relatively stable, thereby improving the pressure regulation effect.

[0026] Working principle:

[0027] When the detachable plate heat exchanger with automatic pressure regulating structure is in use:

[0028] Disassembly stage:

[0029] Pull the second vertical plate 6, the sleeve 2 and the sliding rod 5 guide the movement of the second vertical plate 6, the second vertical plate 6 drives the fixing rod 8 to move, the fixing rod 8 drives the shell 307 to move, the shell 307 is sleeved on the outer wall of the bracket 9, turn the first handle 302, the first handle 302 drives the first screw 301 to rotate, the first screw 301 drives the wedge block 303 to move, the wedge block 303 drives the moving plate 304 to slide, the moving plate 304 drives the two pressure rods 306 to move, the two pressure rods 306 contact the shell 307, stop rotating the first handle 302, the two pressure rods 306 position the shell 307, and then realize the installation between the first vertical plate 1, the second vertical plate 6 and the heat exchange plate 7, and the first handle 302 is rotated in the opposite direction to realize the disassembly between the first vertical plate 1, the second vertical plate and the heat exchange plate 7, which saves time and effort, and improves the disassembly efficiency of the heat exchange plate 7;

[0030] Voltage regulation stage:

[0031] When it is necessary to pressurize the heat exchange plate 7, the second handle 13 is turned, the second handle 13 drives the second screw 12 to rotate, the second screw 12 drives the threaded cylinder 14 to move, the threaded cylinder 14 drives the piston 15 to slide, the piston 15 pushes the gas in the fixed cylinder 11 into the heat exchange plate 7 to increase the pressure, and when it is necessary to relieve the pressure in the heat exchange plate 7, the air pressure in the heat exchange plate 7 enters the exhaust pipe 10 and then enters the pressure relief pipe 401, the air pressure drives the plug block 406 to move, the plug block 406 drives the moving block 405 to move, and the moving block 405 drives the connecting rod 403 to slide. The connecting rod 403 compresses the second spring 404, and the air pressure passes through the two fixed plates 407 and is discharged from the pressure relief pipe 401 to achieve pressure relief. After the pressure relief is completed, the second spring 7404 drives the connecting rod 403 to move downward under the elastic action, thereby driving the plug block 406 to move. The plug block 406 contacts the two fixed plates 407 to block the pressure relief pipe 401. The pressure relief method is relatively stable, thereby improving the pressure regulation effect. When the pressure is too large, the pressure can be automatically relieved. After the pressure relief is completed, the plug block 406 and the two fixed plates 407 can automatically block the pressure relief pipe 401 to achieve automatic pressure regulation.

[0032] Embodiment 2: refer to the attached Figure 1-6 : In this embodiment, a detachable plate heat exchanger with an automatic pressure regulating structure, the connecting mechanism 3 also includes a slider 3a1 and a slide rod 3a2, the slider 3a1 is fixedly connected to the outer wall of the wedge block 303, the wedge block 303 drives the slider 3a1 to move, the slider 3a1 is slidably connected to the outer wall of the slide rod 3a2, the slider 3a1 slides on the outer wall of the slide rod 3a2, and both ends of the slide rod 3a2 are fixedly connected to the bracket 9;

[0033] Through the cooperation between the slider 3a1 and the slide rod 3a2, the wedge block 303 drives the slider 3a1 to move when it moves. The slider 3a1 slides on the outer wall of the slide rod 3a2. The slider 3a1 and the slide rod 3a2 guide the movement of the wedge block 303.

[0034] Working principle:

[0035] When the wedge block 303 moves, it drives the slider 3a1 to move. The slider 3a1 slides on the outer wall of the slide rod 3a2. The slider 3a1 and the slide rod 3a2 guide the movement of the wedge block 303.

[0036] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A detachable plate heat exchanger with an automatic pressure regulating structure, comprising a first vertical plate (1) and a sleeve (2), wherein the outer wall of the first vertical plate (1) is fixedly connected to the sleeve (2), and wherein: The sleeve (2) is slidably connected to a slide rod (5) inside, and a second vertical plate (6) is fixedly connected to the end of the slide rod (5). The first vertical plate (1) and the second vertical plate (6) are respectively fixedly connected to the left and right ends of the heat exchange plate (7). The outer wall of the second vertical plate (6) is fixedly connected to a fixing rod (8). The outer wall of the first vertical plate (1) is fixedly connected to a bracket (9). A connecting mechanism (3) is provided inside the bracket (9). The second vertical plate (6) is fixedly connected to the outer wall of the exhaust pipe (10), and a pressure relief mechanism (4) is provided on the right side of the exhaust pipe (10).

2. The detachable plate heat exchanger with automatic pressure regulating structure according to claim 1 is characterized in that: The connecting mechanism (3) comprises a first screw rod (301), the outer walls of both ends of the first screw rod (301) are rotatably connected to the bracket (9) via bearings, a first handle (302) is fixedly connected to the end of the first screw rod (301), a wedge block (303) is threadedly connected to the outer wall of the first screw rod (301), the outer wall of the wedge block (303) is fitted with a driving plate (304), the outer wall of the driving plate (304) is slidably connected to the bracket (9), the driving plate (304) and the bracket (9) are respectively fixedly connected to the two ends of the first spring (305), a groove arranged in the driving plate (304) is fitted with the outer wall of a pressure rod (306), the pressure rod (306) is rotatably connected to the bracket (9) via a pin shaft, the outer wall of the pressure rod (306) is clamped with a shell (307), and the outer wall of the shell (307) is fixedly connected to a fixing rod (8).

3. The detachable plate heat exchanger with automatic pressure regulating structure according to claim 1 is characterized in that: The pressure relief mechanism (4) comprises a pressure relief pipe (401), wherein the pressure relief pipe (401) is fixedly connected to the exhaust pipe (10) via a flange, a cylinder (402) is fixedly connected to the interior of the pressure relief pipe (401), a connecting rod (403) is slidably connected to the interior of the cylinder (402), a second spring (404) is arranged inside the cylinder (402), two ends of the second spring (404) are respectively fixedly connected to the cylinder (402) and the connecting rod (403), a moving block (405) is fixedly connected to the lower end of the connecting rod (403), a plugging block (406) is fixedly connected below the moving block (405), an outer wall of the plugging block (406) is fitted with two fixing plates (407), and the two fixing plates (407) are both fixedly connected to the inner wall of the pressure relief pipe (401).

4. The detachable plate heat exchanger with automatic pressure regulating structure according to claim 1 is characterized in that: The second vertical plate (6) is fixedly connected to the outer wall of the fixed cylinder (11), and the fixed cylinder (11) is rotatably connected to the outer wall of the end of the second screw rod (12) via a bearing.

5. The detachable plate heat exchanger with automatic pressure regulating structure according to claim 4 is characterized in that: A second handle (13) is fixedly connected to the end of the second screw rod (12), and a threaded barrel (14) is threadedly connected to the outer wall of the second screw rod (12).

6. The detachable plate heat exchanger with automatic pressure regulating structure according to claim 5 is characterized in that: A piston (15) is fixedly connected to the end of the threaded cylinder (14), and the outer wall of the piston (15) is slidably connected to the fixed cylinder (11).

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