Leakage detection device for plate-fin heat exchanger

Abstract

The utility model discloses a plate-fin heat exchanger leak detection device which comprises a cross beam frame and a sliding block, the sliding block is arranged on the outer wall of the cross beam frame, a connecting box is installed at the bottom end of the sliding block, a supporting sleeve is arranged at the bottom end of the connecting box, a supporting shaft is installed at the bottom end of the supporting sleeve in a sliding mode, and the supporting shaft extends into the supporting sleeve. A clamping frame is installed at the bottom end of the supporting shaft, a water tank is arranged outside the portion, on one side of the clamping frame, of the cross beam frame, a containing table is arranged outside the portion, on one side of the water tank, of the cross beam frame, a plate-fin heat exchanger body is arranged at the top end of the containing table, and an air outlet is formed in the outer wall of the plate-fin heat exchanger body. According to the utility model, convenient transverse movement and height adjustment of the leak detection device are realized, centering clamping and fixing of the leak detection device are facilitated, inflatable detection of the plate-fin heat exchanger is facilitated, and the detection efficiency of the leak detection device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of leakage detection devices, in particular to a leakage detection device for a plate-fin heat exchanger. Background Art

[0002] Plate heat exchanger is a kind of high-efficiency heat exchanger composed of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between various plates, and heat is exchanged through the plates. Plate heat exchanger is an ideal equipment for liquid-liquid and liquid-gas heat exchange. It has the characteristics of high heat exchange efficiency, small heat loss, compact and light structure, small footprint, wide application and long service life. Under the same pressure loss, its heat transfer coefficient is 3-5 times higher than that of tubular heat exchanger, and the footprint is one-third of that of tubular heat exchanger. The heat recovery rate can be as high as 90% or more.

[0003] For example, a plate-fin heat exchanger leak detection device disclosed in the authorization announcement number CN216207380U includes a baffle, two sliding rods, a pressure plate, an air inlet pipe, an air outlet pipe, a fin plate and a rubber strip, wherein the two sliding rods are respectively fixedly connected to the side walls of the baffle, the pressure plate and the fin plate are respectively slidably arranged on the rod wall of the sliding rod, the rubber strip is fixedly connected to the side wall of the fin plate, the air inlet pipe and the air outlet pipe are respectively fixedly connected to the left side wall of the baffle, and a leak detection mechanism is arranged at the connection between the fin plate and the rubber strip;

[0004] Although it can quickly detect whether there is a leak on the outside of the device, thereby ensuring the sealing of the device and improving the heat exchange efficiency of the device, it does not solve the problem that the existing leak detection device is not conducive to convenient lateral movement and height adjustment during use, is not convenient for the leak detection device to be clamped and fixed in a center, and is not convenient for inflation-type detection of the plate-fin heat exchanger, which affects the detection efficiency of the leak detection device. Utility Model Content

[0005] The purpose of the utility model is to provide a plate-fin heat exchanger leak detection device to solve the problems proposed in the above background technology that the leak detection device is not convenient for convenient lateral movement and height adjustment, is not convenient for centering clamping and fixing of the leak detection device, is not convenient for inflation detection of the plate-fin heat exchanger, and affects the detection efficiency of the leak detection device.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plate-fin heat exchanger leak detection device, comprising a crossbeam frame and a sliding block, the outer wall of the crossbeam frame is provided with a sliding block, the bottom end of the sliding block is provided with a connection box, the bottom end of the connection box is provided with a support sleeve, the bottom end of the support sleeve is slidably provided with a support shaft, and the support shaft extends to the inside of the support sleeve, the bottom end of the support shaft is provided with a clamping frame, the crossbeam frame on one side of the clamping frame is provided with a water tank outside, the crossbeam frame on one side of the water tank is provided with a placement table outside, the placement table A plate-fin heat exchanger body is arranged on the top of the platform, an air outlet is arranged on the outer wall of the plate-fin heat exchanger body, an air inlet is arranged on the outer wall of the plate-fin heat exchanger body away from the air outlet, a two-way cylinder is installed at the center position of the bottom end of the clamping frame, an adjusting rod is symmetrically installed on the output end of the two-way cylinder, a supporting rod is symmetrically installed on the bottom end of the clamping frame on one side of the two-way cylinder, a clamping block is arranged on the bottom end of the clamping frame on one side of the adjusting rod, and the clamping blocks are slidably connected to the supporting rod, and the clamping blocks are connected to the adjusting rod.

[0007] Preferably, an air pump is installed on the top of the clamping frame on one side of the support shaft, a delivery pipe is provided on the outer wall of the air pump, a rubber connecting sleeve is installed on the end of the delivery pipe away from the air pump, a solid tube is installed on the outer wall of the clamping frame on the side away from the air pump, and a sealing plug is installed on the end of the solid tube away from the clamping frame.

[0008] Preferably, a first motor is installed on the outer wall of the beam frame, and the first motor extends to the outside of the beam frame, a driving wheel is installed at the output end of the first motor, a belt is provided on the surface of the driving wheel, a support shaft is movably installed inside the beam frame on one side of the belt, a driven wheel is mounted on the surface of the support shaft, and the belt extends to the surface of the driven wheel.

[0009] Preferably, a slide rail is installed on the outer wall of the beam frame on one side of the belt, and the slide block is slidably connected to the slide rail, and the slide block is fixedly connected to the belt.

[0010] Preferably, a first cylinder is installed inside the support sleeve, a telescopic rod is installed at the output end of the first cylinder, and the bottom end of the telescopic rod is connected to the support shaft.

[0011] Preferably, a second motor is installed inside and outside the connecting box, and the second motor extends into the inside of the connecting box, a worm is installed at the output end of the second motor, a rotating shaft is movably installed inside the connecting box on one side of the second motor, and the rotating shaft extends to the outside of the connecting box and is connected to the support sleeve.

[0012] Preferably, a worm wheel is mounted on the surface of the rotating shaft on one side of the worm, and the worm and the worm wheel are meshed with each other.

[0013] Preferably, a control panel is installed on the outer wall of the placement table, and the output end of the control panel is electrically connected to the input ends of the air pump, the two-way air cylinder, the first motor, the first air cylinder, and the second motor.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the leak detection device not only realizes convenient lateral movement and height adjustment of the leak detection device, but also facilitates the central clamping and fixing of the leak detection device, facilitates the inflation detection of the plate-fin heat exchanger, and improves the detection efficiency of the leak detection device;

[0015] (1) The first motor drives the driving wheel to rotate, the driving wheel drives the belt to move, the belt drives the sliding block to move horizontally, the sliding block drives the connecting box to move horizontally, the connecting box drives the support sleeve, the support shaft, and the clamping frame to move horizontally, so as to facilitate the overall movement of the clamping frame to the top of the placement table, the second motor drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the rotating shaft to rotate, the rotating shaft drives the support sleeve to rotate, the support sleeve drives the support shaft to rotate, the support shaft drives the clamping frame to rotate, and the clamping frame drives the clamping block to rotate, so as to facilitate the clamping block to perform rotating multi-position clamping of the plate-fin heat exchanger, the first cylinder drives the telescopic rod to move, the telescopic rod drives the support shaft to adjust the height, and the support shaft drives the clamping frame as a whole to adjust the height, so as to facilitate the clamping frame to drive the clamping block to adjust to one side of the plate-fin heat exchanger body, thereby realizing convenient lateral movement and height adjustment of the leak detection device, facilitating circular multi-position rotation, and improving the convenience of control and adjustment of the leak detection device;

[0016] (2) The adjusting rod is driven by a bidirectional cylinder to move, and the adjusting rod drives the two groups of clamping blocks to move toward each other, so that the clamping blocks can clamp and fix the plate-fin heat exchanger in a centered manner. The rubber connecting sleeve is manually connected to the air inlet, and the sealing plug is connected to the air outlet. The first motor drives the driving wheel to rotate in the opposite direction, and the driving wheel drives the sliding block to move in the opposite direction through a belt, so that the sliding block drives the clamping frame to move in the opposite direction. The clamping frame drives the plate-fin heat exchanger body to move as a whole through the two groups of clamping blocks, so that the plate-fin heat exchanger body can be easily fixed. The body moves from the top of the placement table to the inside of the water tank, and the air pump conveys the external gas to the inside of the plate-fin heat exchanger body through the delivery pipe, rubber connecting sleeve, and air inlet. The gas is sealed by the sealing plug to observe the state of the plate-fin heat exchanger body inside the water tank. If bubbles suddenly appear in the liquid inside the water tank, it means that the plate-fin heat exchanger body is leaking. The leak detection device realizes convenient centering clamping and fixation, facilitates the inflation detection of the plate-fin heat exchanger, and improves the detection efficiency of the leak detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the slide rail of the utility model;

[0019] Figure 3 This is a front view structural schematic diagram of the utility model;

[0020] Figure 4 This is a schematic diagram of the front cross-sectional structure of the worm of the utility model;

[0021] Figure 5 It is a three-dimensional enlarged structural schematic diagram of the adjusting rod of the utility model.

[0022] In the figure: 1. crossbeam frame; 2. sliding block; 3. connecting box; 4. supporting sleeve; 5. supporting shaft; 6. clamping frame; 7. water tank; 8. placing table; 9. plate-fin heat exchanger body; 10. air pump; 11. conveying pipe; 12. rubber connecting sleeve; 13. solid pipe; 14. sealing plug; 15. support rod; 16. two-way cylinder; 17. adjusting rod; 18. clamping block; 19. first motor; 20. driving wheel; 21. belt; 22. driven wheel; 23. supporting shaft; 24. slide rail; 25. first cylinder; 26. telescopic rod; 27. air outlet; 28. air inlet; 29. ​​second motor; 30. worm; 31. worm wheel; 32. rotating shaft; 33. control panel. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5The utility model provides an embodiment: a plate-fin heat exchanger leak detection device, comprising a crossbeam frame 1 and a sliding block 2, a sliding block 2 is arranged on the outer wall of the crossbeam frame 1, a connecting box 3 is installed at the bottom end of the sliding block 2, a support sleeve 4 is arranged at the bottom end of the connecting box 3, a support shaft 5 is slidably installed at the bottom end of the support sleeve 4, and the support shaft 5 extends to the inside of the support sleeve 4, a clamping frame 6 is installed at the bottom end of the support shaft 5, a water tank 7 is arranged outside the crossbeam frame 1 on one side of the clamping frame 6, a placing table 8 is arranged outside the crossbeam frame 1 on one side of the water tank 7, a plate-fin heat exchanger body 9 is arranged on the top of the placing table 8, an air outlet 27 is arranged on the outer wall of the plate-fin heat exchanger body 9, an air inlet 28 is arranged on the outer wall of the plate-fin heat exchanger body 9 away from the air outlet 27, and a bottom center position of the clamping frame 6 is installed A two-way cylinder 16, which plays a role in power output. An adjusting rod 17 is symmetrically installed at the output end of the two-way cylinder 16. A support rod 15 is symmetrically installed at the bottom end of the clamping frame 6 on one side of the two-way cylinder 16. A clamping block 18 is provided at the bottom end of the clamping frame 6 on one side of the adjusting rod 17. The clamping blocks 18 are all slidably connected to the support rod 15, and the clamping blocks 18 are all connected to the adjusting rod 17. An air pump 10 is installed at the top of the clamping frame 6 on one side of the support shaft 5. The air pump 10 plays a role in power output. A delivery pipe 11 is provided on the outer wall of the air pump 10. A rubber connecting sleeve 12 is installed at one end of the delivery pipe 11 away from the air pump 10. A solid tube 13 is installed on the outer wall of the clamping frame 6 away from the air pump 10. A sealing plug 14 is installed at one end of the solid tube 13 away from the clamping frame 6.

[0025] When in use, the two-way cylinder 16 is opened by operating the control panel 33, and the two-way cylinder 16 drives the adjusting rod 17 to move. Under the sliding support of the clamping block 18 and the support rod 15, the adjusting rod 17 drives the two groups of clamping blocks 18 to move toward each other, so as to facilitate the clamping block 18 to clamp and fix the plate-fin heat exchanger in a centered manner. The rubber connecting sleeve 12 is manually connected to the air inlet 28, and the sealing plug 14 is connected to the air outlet 27. The sealing plug 14 and the rubber connecting sleeve 12 are both provided with sealing rings inside. By operating the first motor 19 to rotate in the opposite direction, the first motor 19 drives the driving wheel 20 to rotate in the opposite direction, and the driving wheel 20 drives the sliding block 2 to move in the opposite direction through the belt 21, so as to facilitate the sliding block 2 to drive the clamping frame 6 to move in the opposite direction, and the clamping frame 6 drives the plate-fin heat exchanger body 9 as a whole through the two groups of clamping blocks 18. The plate-fin heat exchanger body 9 is moved to facilitate the movement of the plate-fin heat exchanger body 9 from the top of the placement table 8 to the inside of the water tank 7. The air pump 10 is turned on by operating the control panel 33. The air pump 10 delivers the external gas to the inside of the plate-fin heat exchanger body 9 through the delivery pipe 11, the rubber connecting sleeve 12, and the air inlet 28. The gas is sealed by the sealing plug 14 to observe the state of the plate-fin heat exchanger body 9 inside the water tank 7. If bubbles suddenly appear in the liquid inside the water tank 7, it means that the plate-fin heat exchanger body 9 has leaked and cannot be put into the market for use. If no bubbles appear in the liquid inside the water tank 7, it means that the plate-fin heat exchanger body 9 has no leak and can be used normally. The convenient centering clamping and fixing of the leak detection device is realized, which facilitates the inflation detection of the plate-fin heat exchanger and improves the detection efficiency of the leak detection device.

[0026] A first motor 19 is installed on the outer wall of the crossbeam frame 1. The first motor 19 plays a role in power output, and the first motor 19 extends to the outside of the crossbeam frame 1. A driving wheel 20 is installed at the output end of the first motor 19. A belt 21 is provided on the surface of the driving wheel 20. A support shaft 23 is movably installed inside the crossbeam frame 1 on one side of the belt 21. A driven wheel 22 is sleeved on the surface of the support shaft 23, and the belt 21 extends to the surface of the driven wheel 22. A slide rail 24 is installed on the outer wall of the crossbeam frame 1 on one side of the belt 21, and the sliding block 2 is slidably connected to the slide rail 24, and the sliding block 2 is fixedly connected to the belt 21. A first cylinder 25 is installed inside the support sleeve 4. The first cylinder 25 plays a role in power output, and a telescopic rod is installed at the output end of the first cylinder 25 26, the bottom end of the telescopic rod 26 is connected to the support shaft 5, a second motor 29 is installed on the outside of the connection box 3, and the second motor 29 extends to the inside of the connection box 3, the second motor 29 plays the role of power output, a worm 30 is installed on the output end of the second motor 29, a rotating shaft 32 is movably installed inside the connection box 3 on one side of the second motor 29, and the rotating shaft 32 extends to the outside of the connection box 3 and is connected to the support sleeve 4, a worm gear 31 is installed on the surface of the rotating shaft 32 on one side of the worm 30, and the worm 30 and the worm gear 31 are meshed with each other, a control panel 33 is installed on the outer wall of the placement table 8, and the output end of the control panel 33 is electrically connected to the air pump 10, the two-way cylinder 16, the first motor 19, the first cylinder 25, and the input end of the second motor 29;

[0027] When in use, an external power supply is firstly used to turn on the first motor 19 through the operation control panel 33, and the first motor 19 drives the driving wheel 20 to rotate, and the driving wheel 20 drives the belt 21 to move. Under the support of the support shaft 23, the belt 21 drives the driven wheel 22 to rotate, and under the sliding support of the sliding block 2 and the slide rail 24, the belt 21 drives the sliding block 2 to move horizontally, and the sliding block 2 drives the connecting box 3 to move horizontally, and the connecting box 3 drives the support sleeve 4, the support shaft 5, and the clamping frame 6 to move horizontally, so as to facilitate the overall movement of the clamping frame 6 to the top of the placement table 8, and the second motor 29 is turned on by the operation control panel 33. Under the support of the connecting box 3, the second motor 29 drives the worm 30 to rotate, and under the meshing action of the worm 30 and the worm wheel 31, the worm 30 drives the worm wheel 31 to rotate, and the worm wheel 31 drives the rotation The movable shaft 32 rotates, and the rotating shaft 32 drives the support sleeve 4 to rotate, and the support sleeve 4 drives the support shaft 5 to rotate, and the support shaft 5 drives the clamping frame 6 to rotate, and the clamping frame 6 drives the clamping block 18 to rotate, so as to facilitate the clamping block 18 to perform rotational multi-position clamping of the plate-fin heat exchanger. The first cylinder 25 is opened by operating the control panel 33. Under the support of the support sleeve 4, the telescopic rod 26 is driven by the first cylinder 25 to move. Under the sliding support of the support sleeve 4 and the support shaft 5, the telescopic rod 26 drives the support shaft 5 to adjust the height, and the support shaft 5 drives the clamping frame 6 to adjust the height as a whole, so as to facilitate the clamping frame 6 to drive the clamping block 18 to adjust to one side of the plate-fin heat exchanger body 9, thereby realizing convenient lateral movement and height adjustment of the leak detection device, facilitating circular multi-position rotation, and improving the convenience of control and adjustment of the leak detection device.

[0028] Working principle: When in use, an external power source is connected, the first motor 19 drives the driving wheel 20 to rotate, the driving wheel 20 drives the belt 21 to move, the belt 21 drives the driven wheel 22 to rotate, the belt 21 drives the sliding block 2 to move horizontally, the sliding block 2 drives the connecting box 3 to move horizontally, the connecting box 3 drives the support sleeve 4, the support shaft 5, and the clamping frame 6 to move horizontally, so as to facilitate the overall movement of the clamping frame 6 to the top of the placement table 8, the second motor 29 drives the worm 30 to rotate, the worm 30 drives the worm wheel 31 to rotate, and the worm wheel 31 drives the rotation The shaft 32 rotates, the rotating shaft 32 drives the support sleeve 4 to rotate, the support sleeve 4 drives the support shaft 5 to rotate, the support shaft 5 drives the clamping frame 6 to rotate, and the clamping frame 6 drives the clamping block 18 to rotate, so as to facilitate the clamping block 18 to perform a rotatable multi-position clamping of the plate-fin heat exchanger, the telescopic rod 26 is driven by the first cylinder 25 to move, the telescopic rod 26 drives the support shaft 5 to adjust the height, and the support shaft 5 drives the clamping frame 6 to adjust the height as a whole, so as to facilitate the clamping frame 6 to drive the clamping block 18 to adjust to one side of the plate-fin heat exchanger body 9, and the two-way air The cylinder 16 drives the adjusting rod 17 to move, and the adjusting rod 17 drives the two sets of clamping blocks 18 to move toward each other, so as to facilitate the clamping blocks 18 to clamp and fix the plate-fin heat exchanger in a central manner. The rubber connecting sleeve 12 is manually connected to the air inlet 28, and the sealing plug 14 is connected to the air outlet 27. The sealing plug 14 and the rubber connecting sleeve 12 are both provided with sealing rings. By operating the first motor 19 to rotate in the opposite direction, the first motor 19 drives the driving wheel 20 to rotate in the opposite direction, and the driving wheel 20 drives the sliding block 2 to move in the opposite direction through the belt 21. The sliding block 2 drives the clamping frame 6 to move in the opposite direction, and the clamping frame 6 drives the plate-fin heat exchanger body 9 to move as a whole through the two groups of clamping blocks 18, so as to facilitate the plate-fin heat exchanger body 9 to move from the top of the placement table 8 to the inside of the water tank 7. The air pump 10 delivers the external gas to the inside of the plate-fin heat exchanger body 9 through the delivery pipe 11, the rubber connecting sleeve 12, and the air inlet 28. The sealing plug 14 seals the gas to observe the state of the plate-fin heat exchanger body 9 inside the water tank 7 to complete the use of the leak detection device.

Claims

1. A plate-fin heat exchanger leak detection device, comprising a crossbeam frame (1) and a sliding block (2), characterized in that: A sliding block (2) is arranged on the outer wall of the crossbeam frame (1), a connecting box (3) is installed at the bottom end of the sliding block (2), a supporting sleeve (4) is arranged at the bottom end of the connecting box (3), a supporting shaft (5) is slidably installed at the bottom end of the supporting sleeve (4), and the supporting shaft (5) extends to the inside of the supporting sleeve (4), a clamping frame (6) is installed at the bottom end of the supporting shaft (5), a water tank (7) is arranged outside the crossbeam frame (1) on one side of the clamping frame (6), a placing table (8) is arranged outside the crossbeam frame (1) on one side of the water tank (7), a plate-fin heat exchanger body (9) is arranged at the top end of the placing table (8), and the plate-fin heat exchanger body (9) is provided. ) is provided with an air outlet (27) on its outer wall, an air inlet (28) is provided on the outer wall of the plate-fin heat exchanger body (9) away from the air outlet (27), a two-way cylinder (16) is installed at the center position of the bottom end of the clamping frame (6), an adjusting rod (17) is symmetrically installed at the output end of the two-way cylinder (16), a supporting rod (15) is symmetrically installed at the bottom end of the clamping frame (6) on one side of the two-way cylinder (16), a clamping block (18) is provided at the bottom end of the clamping frame (6) on one side of the adjusting rod (17), and the clamping block (18) is slidably connected to the supporting rod (15), and the clamping block (18) is connected to the adjusting rod (17).

2. A plate-fin heat exchanger leak detection device according to claim 1, characterized in that: An air pump (10) is installed at the top of the clamping frame (6) on one side of the support shaft (5), a delivery pipe (11) is arranged on the outer wall of the air pump (10), a rubber connecting sleeve (12) is installed at the end of the delivery pipe (11) away from the air pump (10), a solid pipe (13) is installed on the outer wall of the clamping frame (6) away from the air pump (10), and a sealing plug (14) is installed at the end of the solid pipe (13) away from the clamping frame (6).

3. A plate-fin heat exchanger leak detection device according to claim 1, characterized in that: A first motor (19) is mounted on the outer wall of the crossbeam frame (1), and the first motor (19) extends to the outside of the crossbeam frame (1); a driving wheel (20) is mounted on the output end of the first motor (19); a belt (21) is provided on the surface of the driving wheel (20); a support shaft (23) is movably mounted inside the crossbeam frame (1) on one side of the belt (21); a driven wheel (22) is mounted on the surface of the support shaft (23), and the belt (21) extends to the surface of the driven wheel (22).

4. A plate-fin heat exchanger leak detection device according to claim 3, characterized in that: A slide rail (24) is installed on the outer wall of the crossbeam frame (1) on one side of the belt (21), and the slide block (2) is slidably connected to the slide rail (24), and the slide block (2) is fixedly connected to the belt (21).

5. The plate-fin heat exchanger leak detection device according to claim 1, characterized in that: A first cylinder (25) is installed inside the support sleeve (4), a telescopic rod (26) is installed at the output end of the first cylinder (25), and the bottom end of the telescopic rod (26) is connected to the support shaft (5).

6. A plate-fin heat exchanger leak detection device according to claim 1, characterized in that: A second motor (29) is installed outside the connection box (3), and the second motor (29) extends into the interior of the connection box (3); a worm (30) is installed at the output end of the second motor (29); a rotating shaft (32) is movably installed inside the connection box (3) on one side of the second motor (29), and the rotating shaft (32) extends to the outside of the connection box (3) and is connected to the support sleeve (4).

7. A plate-fin heat exchanger leak detection device according to claim 6, characterized in that: A worm wheel (31) is mounted on the surface of a rotating shaft (32) on one side of the worm (30), and the worm (30) and the worm wheel (31) are meshed with each other.

8. The plate-fin heat exchanger leak detection device according to claim 1, characterized in that: A control panel (33) is installed on the outer wall of the placement table (8), and the output end of the control panel (33) is electrically connected to the input ends of the air pump (10), the bidirectional cylinder (16), the first motor (19), the first cylinder (25), and the second motor (29).

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