A high heat transfer coefficient plate heat exchanger

Abstract

The present invention provides a high heat transfer coefficient plate heat exchanger, which relates to the technical field of plate heat exchangers, including a fixed plate, a plurality of plates, a movable plate, a column and a decontamination cleaning mechanism, wherein the decontamination cleaning mechanism includes a cleaning device and a position adjustment device, and the decontamination cleaning mechanism includes a storage box and a bellows, wherein a water pump is installed inside the storage box, one side of the storage box is fixedly connected to one side of the fixed plate, and a conduit is fixedly connected to the side of the storage box away from the fixed plate, and a sealing plug is interference-connected on the inner wall of the conduit, and two bellows are fixedly connected to the upper and lower surfaces of the storage box. The present invention can regularly remove dirt and sediment inside the heat exchanger without manual operation, and is particularly suitable for large heat exchangers in factories. It can also be suitable for large heat exchangers with multi-media through holes. The internal pipelines of the heat exchanger can always be kept clean, so that the fluid can more effectively contact the heat exchange surface, thereby greatly improving the heat exchange performance.

Description

Technical Field

[0001] The invention relates to the technical field of plate heat exchangers, and in particular to a high heat transfer coefficient plate heat exchanger. Background Art

[0002] Plate heat exchanger is a highly efficient heat exchange equipment, widely used in chemical, food, pharmaceutical, HVAC and other fields. The heat transfer coefficient of plate heat exchanger is an important parameter to measure its heat exchange efficiency.

[0003] The invention with the publication number CN101922869B discloses a high-efficiency detachable wide-channel plate heat exchanger, and the key points of its technical solution are as follows: the heat exchanger is composed of a fixed plate, a movable plate, an upper crossbeam, a lower crossbeam, a bracket, a plate, a sealing gasket, a clamping bolt pair and other main components. The corrugated heat transfer area of ​​the plate is provided with a linear support belt formed by a plurality of raised support points arranged in a straight line. The corrugations in the linear support belt have no metal contact, the inlet and outlet corner holes of the same medium are located on the same side of the Y axis, and the entire plate is completely symmetrical about the X axis and the Y axis. The single plate of the present invention covers three different groove depth specifications of shallow groove, deep groove and ultra-deep groove. After assembly, a wide-wide channel combination and a wide-narrow channel combination are formed respectively, saving investment and reducing production costs.

[0004] In view of the above-mentioned related contents and combined with the actual use, the following technical defects are found: After a period of operation, the heat transfer coefficient of the plate heat exchanger will drop significantly due to the influence of the scale inside the pipe, and it needs to be cleaned in time. However, the heat exchangers in chemical and pharmaceutical factories are huge in size and weight, and manual cleaning is very troublesome. There are also risks of burns, corrosion trauma, etc., so it is inconvenient to regularly clean the scale inside the pipe, which will lead to a decrease in the heat transfer coefficient of the heat exchanger and a deterioration in the heat exchange effect. It will also reduce the service life of the equipment and increase maintenance costs. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a high heat transfer coefficient plate heat exchanger.

[0006] In order to achieve the above object, the present invention adopts the following technical scheme: a high heat transfer coefficient plate heat exchanger, comprising a fixed plate, a plurality of plates, a movable plate, a column and a decontamination cleaning mechanism,

[0007] The decontamination cleaning mechanism comprises a cleaning device and a position adjustment device, the cleaning device and the position adjustment device are respectively located on both sides of the plate, the decontamination cleaning mechanism comprises a storage box and a bellows, a water pump is installed inside the storage box, one side of the storage box is fixedly connected to one side of the fixed plate, a side of the storage box away from the fixed plate is fixedly connected with a conduit, the inner wall of the conduit is interference-connected with a sealing plug, the upper surface and the lower surface of the storage box are fixedly connected with two bellows, one end of the bellows away from the storage box is fixedly connected with a connecting tube, the outer wall of the connecting tube is fixedly connected with a plurality of nozzles, and one end of the connecting tube away from the bellows is fixedly connected with a hanging ring,

[0008] The position adjustment device includes a rectangular tube, an electric push rod, a connecting frame, and a connecting rod connected to the connecting frame. The vertical end of the connecting frame is sleeved in the rectangular tube and can slide up and down in the rectangular tube. One end of the connecting rod is fixedly connected to a hook. The side of the plate is provided with a plurality of medium through holes. When the heat exchanger needs to be cleaned, the hook abuts against the hanging ring to drive the nozzle to move in the medium through hole. One end of the electric push rod is fixed to the side of the movable plate away from the plate. The output end of the electric push rod is fixedly connected to a welding plate after passing through the column. Both ends of the welding plate are fixedly connected to the rectangular tube. The cross-section of the connecting frame is "U"-shaped. The side of the connecting frame close to the movable plate is fixedly connected to the end of the two connecting rods away from the hooks.

[0009] The cam face of the movable plate is provided with a plurality of screws which are slidably penetrated by the side surfaces of the fixed plate and the movable plate, and the arc surface of the screws is threadedly connected with two clamping bolts, and the plurality of plates are located between the fixed plate and the movable plate, and two guide rods are slidably penetrated by the side surfaces of the movable plate, and the two ends of the guide rods are respectively fixedly connected to one side of the fixed plate and one side of the column, and two guide holes are provided on the side surfaces of the plate, and the inner walls of the guide holes are slidably connected with the arc surface of the guide rods, and the side surfaces of the plate are provided with a plurality of medium through holes, and the side surfaces of the fixed plate are provided with a plurality of first flange holes which correspond to the positions of the medium through holes, and the side surfaces of the movable plate are provided with a plurality of second flange holes which correspond to the positions of the medium through holes, and the decontamination and cleaning mechanism is located on the side of the fixed plate away from the plate.

[0010] Preferably, two positioning rods are slidably penetrated through the side surface of the column, and one end of the positioning rod is fixedly connected to one side of the welding plate.

[0011] Preferably, a plurality of bristles are fixedly connected to the outer wall of the connecting tube.

[0012] Preferably, four positioning hooks are fixedly connected to a side of the storage box away from the fixed plate.

[0013] Preferably, two compression rods are threadedly penetrated on one side of the outer wall of the rectangular tube, and one end of the compression rods abuts against one side of the connecting frame.

[0014] Preferably, a lifting mechanism is provided on the side of the column away from the movable plate, and the lifting mechanism includes a support plate, one side of the support plate is fixedly connected to one side of the column, a push rod is slidably penetrated through the surface of the support plate, the arc surface of the push rod is threadedly connected with a gear ring, the gear ring is rotatably connected to the upper surface of the support plate, an auxiliary plate is fixedly connected to the side of the column close to the support plate, a servo motor is fixedly connected to the lower surface of the auxiliary plate, a gear is fixedly connected to the output end of the servo motor, and the gear is meshed with the gear ring.

[0015] Preferably, a guide rod is slidably provided on the surface of the support plate, and one end of the guide rod is fixedly connected to the arc surface of the push rod.

[0016] Preferably, the arc surface of the push rod is rotatably connected to two pulleys.

[0017] Preferably, one side of several clamping bolts is fixedly connected with a rubber pad, and the several rubber pads are divided into two groups, one side of the rubber pads in one group abuts against the fixed plate, and one side of the rubber pads in the other group abuts against the movable plate.

[0018] Compared with the prior art, the advantages and positive effects of the present invention are:

[0019] In the present invention, the dirt and sediment inside the heat exchanger can be removed regularly through the decontamination and cleaning mechanism of the equipment, and no manual operation is required, which reduces the operation risk of workers. It is particularly suitable for large heat exchangers in factories and can be applied to large heat exchangers with multi-media through holes.

[0020] The internal pipes of the heat exchanger can always be kept clean, so that the fluid can contact the heat exchange surface more effectively, thereby greatly improving the heat exchange performance, increasing the heat transfer coefficient, and improving the use effect. In addition, regular cleaning can also extend the service life of the equipment and reduce maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A three-dimensional structural schematic diagram of a high heat transfer coefficient plate heat exchanger proposed by the present invention;

[0022] Figure 2 The present invention proposes a high heat transfer coefficient plate heat exchanger Figure 1 The structural diagram on the right;

[0023] Figure 3 A partial structural schematic diagram of a high heat transfer coefficient plate heat exchanger proposed by the present invention;

[0024] Figure 4 A schematic diagram of the structure of a plate of a high heat transfer coefficient plate heat exchanger proposed by the present invention;

[0025] Figure 5 A schematic diagram of the structure of a decontamination and cleaning mechanism for a high heat transfer coefficient plate heat exchanger proposed by the present invention;

[0026] Figure 6 The present invention proposes a high heat transfer coefficient plate heat exchanger Figure 5 The structural diagram on the right;

[0027] Figure 7 A partial structural schematic diagram of a decontamination and cleaning mechanism of a high heat transfer coefficient plate heat exchanger proposed by the present invention;

[0028] Figure 8 The present invention provides a structural schematic diagram of a lifting mechanism for a high heat transfer coefficient plate heat exchanger.

[0029] Legend: 1. Fixed plate; 2. Movable plate; 3. Decontamination and cleaning mechanism; 301. Storage box; 302. Conduit; 303. Sealing plug; 304. Bellows; 305. Connecting tube; 306. Nozzle; 307. Brush; 308. Hanging ring; 309. Electric push rod; 310. Welding plate; 311. Rectangular tube; 312. Press rod; 313. Connecting frame; 314. Connecting rod; 315. Hook; 316. Positioning rod; 317. Positioning Hook; 4, lifting mechanism; 401, support plate; 402, push rod; 403, gear ring; 404, auxiliary plate; 405, servo motor; 406, gear; 407, guide rod; 408, pulley; 5, column; 6, guide rod; 7, plate; 8, guide hole; 9, medium through hole; 10, first flange hole; 11, second flange hole; 12, screw; 13, clamping bolt; 14, rubber pad; 30, cleaning device; 31, position adjustment device. DETAILED DESCRIPTION

[0030] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0032] Embodiment 1, as Figure 1-4As shown, the present invention provides a high heat transfer coefficient plate heat exchanger, including a fixed plate 1, a plurality of plates 7, a movable plate 2, a column 5 and a decontamination cleaning mechanism 3. A lifting mechanism 4 is provided on the side of the column 5 away from the movable plate 2.

[0033] A plurality of screw rods 12 are slidably passed through the fixed plate 1 and the movable plate 2, and two clamping bolts 13 are threadedly connected to the arc surface of the screw rod 12, and the fixed plate 1 and the movable plate 2 are fixed together by the screw rods 12 and the clamping bolts 13. A plurality of plates 7 are located between the fixed plate 1 and the movable plate 2, and two guide rods 6 are slidably passed through the side of the movable plate 2, and the two ends of the guide rod 6 are fixedly connected to one side of the fixed plate 1 and one side of the column 5 respectively.

[0034] A guide hole 8 is provided on both sides of the plate 7, two on the top and two on the bottom, and the inner wall of the guide hole 8 abuts against the arc surface of the guide rod 6. When the plate heat exchanger needs to be assembled, the pressed corrugated plate 7 is first hung on the guide rod 6 between the fixed plate 1 and the movable plate 2, and then the movable plate 2 is moved to press the plate 7 group, and then the fixed plate 1 and the movable plate 2 are clamped to a certain size by two sets of clamping bolts 13. Four medium through holes 9 are provided on the plate 7, and the medium through holes 9 are used for the entry and exit of the fluid medium in the heat exchange process. Four first flange holes 10 are provided on the fixed plate 1, and the first flange holes 10 correspond to the positions of the medium through holes 9. Four second flange holes 11 are provided on the movable plate 2, and the second flange holes 11 correspond to the positions of the medium through holes 9. When in use, the medium flows into the respective channels composed of the plate 7 through the flange holes on the fixed plate 1 (or the movable plate 2), and the medium flows out from the flange holes on the fixed plate 1 (or the movable plate 2) after heat exchange. The fixed plate 1, the movable plate 2, the column 5 and the guide rod 6 are all made of low carbon steel. One side of the clamping bolt 13 is fixedly connected with a rubber pad 14. The rubber pad 14 is divided into two groups, one side of one group of rubber pads 14 abuts against the fixed plate 1, and one side of the other group of rubber pads 14 abuts against the movable plate 2. The rubber pad 14 can increase the friction force on one side of the clamping bolt 13, thereby improving the limiting effect of the clamping bolt 13 on the fixed plate 1 or the movable plate 2.

[0035] like Figure 5-Figure 7 As shown, the decontamination cleaning mechanism 3 includes a cleaning device 30 and a position adjustment device 31 respectively located on both sides of the plate 7. The cleaning device 30 is used to clean dirt and impurities, and the position adjustment device 31 is used to adjust the position of the cleaning device 30 to achieve cleaning of a large multi-media through-hole heat exchanger.

[0036] The cleaning device 30 comprises a storage box 301 and a bellows 304 connected thereto. The storage box 301 is used to store cleaning liquid. A water pump is installed inside the storage box 301. The water pump is used to automatically transport the cleaning liquid to the bellows 304. One side of the storage box 301 is fixedly connected to one side of the fixed plate 1. A conduit 302 is fixedly connected to the side of the storage box 301 away from the fixed plate 1. The conduit 302 is used to replenish the cleaning liquid into the storage box 301. A sealing plug 303 is interference-connected to the inner wall of the conduit 302. The sealing plug 303 is used to seal the conduit 302.

[0037] In this embodiment, the upper surface and the lower surface of the storage box 301 are fixedly connected with two bellows 304, and the end of the bellows 304 away from the storage box 301 is fixedly connected with a connecting tube 305, the bellows 304 is used to connect the connecting tube 305 and the storage box 301, the connecting tube 305 is used to transport cleaning liquid to the nozzle 306, and the outer wall of the connecting tube 305 is fixedly connected with a plurality of nozzles 306, and the nozzles 306 are used to spray cleaning liquid into the channel formed by the medium through holes 9 on the plurality of plates 7. One end of the connecting tube 305 away from the bellows 304 is fixedly connected to a hanging ring 308, and one end of the connecting rod 314 is fixedly connected to a hook 315, and the hook 315 is in contact with the hanging ring 308. When it is necessary to adjust the connecting tube 305 to drive the nozzle 306 to move along the channel formed by the plurality of medium through holes 9, the connecting rod 314 is first adjusted to drive the hook 315 so that the hook 315 hooks the hanging ring 308, and then the connecting rod 314 is adjusted to drive the hook 315. The hook 315 pulls the hanging ring 308 and the connecting tube 305, so that the connecting tube 305 can drive the nozzle 306 to move along the inner wall of the channel.

[0038] The position adjustment device 31 includes a rectangular tube 311, an electric push rod 309, two connecting frames 313, and a connecting rod 314 connected to the connecting frame 313. The electric push rod 309 is fixedly connected to the side of the movable plate 2 away from the plate 7. The electric push rod 309 can control the movement of the connecting rod 314. The arc surface of the output end of the electric push rod 309 is slidably connected to the side of the column 5. The output end of the electric push rod 309 is fixedly connected to a welding plate 310. Both sides of the welding plate 310 are fixedly connected to the rectangular tube 311. The welding plate 310 is used to support the rectangular tube 311. The rectangular tube 311 is used to accommodate the connecting frame 313. The inner walls of the two rectangular tubes 311 are slidably connected to the two connecting frames 313. The ends of the upper and lower connecting frames 313 are placed in the rectangular tube 311 and can slide in the rectangular tube 311. The cross section of the connecting frame 313 is “U”-shaped, and the connecting frame 313 is used to fix and support the connecting rods 314 . The side of the connecting frame 313 close to the movable plate 2 is fixedly connected to the ends of the two connecting rods 314 away from the hooks 315 .

[0039] Two positioning rods 316 are slidably provided on the side of the column 5, one end of which is fixedly connected to one side of the welding plate 310. When the electric push rod 309 drives the welding plate 310 to move, the positioning rod 316 can guide and position the welding plate 310, thereby improving the stability of the moving process of the welding plate 310. A plurality of bristles 307 are fixedly connected to the outer wall of the connecting tube 305. When the connecting tube 305 drives the nozzle 306 to move along the inner wall of the channel, the bristles 307 can clean the stubborn dirt on the inner wall of the channel. Four positioning hooks 317 are fixedly connected to one side of the storage box 301 away from the fixed plate 1. After the cleaning operation is completed, the connecting tube 305 can be moved to drive the hanging ring 308, and the hanging ring 308 can be hung on the positioning hook 317, so as to facilitate the storage and placement of the connecting tube 305. Two pressure rods 312 are threadedly penetrated on one side of the outer wall of the rectangular tube 311, and one end of the pressure rod 312 abuts against one side of the connecting frame 313. The pressure rod 312 is rotated to abut against the connecting frame 313, so as to limit and fix the connecting frame 313.

[0040] The bellows 304 is made of a relatively soft material and is retractable and movable. When the heat exchanger is working normally, the bellows 304 is hung on the positioning hook 317 of the storage box 301 through the front hanging ring 308. When the heat exchange efficiency of the heat exchanger is significantly reduced, the decontamination cleaning mechanism 3 is used to clean the inside of the flange hole and the medium through hole 9 to remove dirt and impurities.

[0041] The electric push rod 309 is started, thereby driving the welding plate 310, the rectangular tube 311, the connecting frame 313 and the connecting rod 314 to move toward the second flange hole 11 until the connecting rod 314 passes through the second flange hole 11, the medium through hole 9 and the first flange hole 10 in sequence. When the hook 315 at the front end of the connecting rod 314 passes through the first flange hole 10 and is exposed, the electric push rod 309 is stopped, and the hanging ring 308 on the positioning hook 317 is removed and hung on the hook 315; after the hanging ring 308 is hung firmly, the water pump inside the storage box 301 is started again, so that the cleaning liquid enters the nozzle 306 along the bellows 304 and the connecting tube 305, and then the cleaning liquid is sprayed out from the nozzle 306, and at the same time, the electric push rod 309 is started to drive the connecting rod 314 to move toward the medium through hole 9, and the connecting rod 314 drives the hook 315, the hanging ring 308, the connecting tube 305 and the nozzle 306 to move, so that the nozzle 306 moves along the channel formed by the plurality of medium through holes 9 during the process of spraying the cleaning liquid, so that the cleaning liquid can be sprayed into the inside of the channel, and the dirt inside the channel is washed with the help of the cleaning liquid. The electric push rod 309 is started to make the nozzle 306 reciprocate inside the medium through hole 9 until the dirt is completely cleaned off. In the process of the connecting tube 305 driving the nozzle 306 to move along the inner wall of the channel, the bristles 307 can clean the more stubborn dirt on the inner wall of the channel.

[0042] After cleaning is completed, remove the hanging ring 308 from the hook 315, and hang the hanging ring 308 on the positioning hook 317 to facilitate the storage and placement of the bellows 304. Restart the electric push rod 309 to drive the connecting rod 314 back to the original position, and then rotate the pressure rod 312 to separate the connecting frame 313, so that the connecting frame 313 and the rectangular tube 311 are no longer fixed. After the connecting frame 313 is stored in the rectangular tube 311, the pressure rod 312 is rotated to abut and fix the connecting frame 313. By setting up the decontamination and cleaning mechanism 3, it is convenient to regularly remove dirt and sediment inside the heat exchanger, always keep the internal pipeline of the heat exchanger clean, and ensure that the fluid can more effectively contact the heat exchange surface, thereby improving the heat exchange performance and the heat transfer coefficient. In addition, regular cleaning can also extend the service life of the equipment and reduce maintenance costs.

[0043] In this embodiment, two connecting rods 314 are provided on each connecting frame 313, and the number of connecting rods 314 is determined according to the number of vertical rows of medium through holes 9. For example, when there are three vertical rows of medium through holes 9 on the plate 7, there are also three connecting rods 314, so that each vertical row of medium through holes 9 can be cleaned. At the same time, the width of the connecting frame 313 is also determined according to the number of vertical rows of medium through holes 9.

[0044] In other embodiments, the number of bellows 304 can be increased or decreased, and two bellows 304 are the best choice for this embodiment. In some large heat exchangers, the number of medium through holes 9 is increased, and the number of corresponding first flange holes 10 and second flange holes 11 will also increase. In this embodiment, there are one row of medium through holes 9 in the upper and lower rows, while in other embodiments, there are 2 rows of medium through holes 9 in the upper and lower rows or 4 rows of medium through holes 9 in the upper and lower rows. If the number of bellows 304 is increased simultaneously, it will cause complex and redundant structures, greatly increasing costs. The position adjustment device 31 can solve this problem. For example, after the first row of medium through holes 9 are cleaned, the pressure rod 312 is first rotated to separate from the connecting frame 313. The connecting frame 313 and the rectangular tube 311 are no longer fixed. The position of the connecting frame 313 can be adjusted up and down so that the connecting rod 314 can be aligned with the center position of the next row of second flange holes 11. After the holes are aligned, the pressure rod 312 is rotated to abut against the connecting frame 313 to fix the connecting frame 313 and the connecting rod 314. Then, the electric push rod 309 is started until the connecting rod 314 passes through the second row of second flange holes 11, the medium through holes 9 and the first flange holes 10 in turn. The above cleaning process is repeated, and then the next row of medium through holes 9 is cleaned. The position adjustment device 31 can meet the requirements of cleaning a heat exchanger with multiple rows of medium through holes 9 without increasing the number of bellows 304.

[0045] like Figure 8As shown, the lifting mechanism 4 includes a support plate 401, one side of the support plate 401 is fixedly connected to one side of the column 5, and a push rod 402 is slidably penetrated on the surface of the support plate 401, and the push rod 402 is used to lift one side of the heat exchanger, so as to facilitate the sewage to flow out of the heat exchanger channel. The arc surface of the push rod 402 is threadedly connected with a gear ring 403, and the gear ring 403 is used to control the lifting of the push rod 402, and the gear ring 403 is rotatably connected to the upper surface of the support plate 401; the side of the column 5 close to the support plate 401 is fixedly connected with an auxiliary plate 404, and the auxiliary plate 404 is used to fix the servo motor 405. The lower surface of the auxiliary plate 404 is fixedly connected with the servo motor 405, and the output end of the servo motor 405 is fixedly connected with a gear 406, and the gear 406 is used to drive the gear ring 403 to rotate, and the gear 406 is meshed with the gear ring 403. A guide rod 407 is slidably provided on the surface of the support plate 401, and the guide rod 407 can guide and position the top rod 402. The upper end of the guide rod 407 is fixedly connected to the arc surface of the top rod 402, and the arc surface of the lower end of the top rod 402 is rotatably connected to two pulleys 408. The pulley 408 can convert the sliding friction between the top rod 402 and the ground into rolling friction, so that the movement process of the top rod 402 on the ground can be smoother.

[0046] After the decontamination cleaning mechanism 3 has finished cleaning the inside of the passage, it is necessary to pour out the sewage inside the passage. The specific steps are: first start the servo motor 405 to drive the gear 406 to rotate, the gear 406 drives the gear ring 403 to rotate, the gear ring 403 drives the push rod 402 to move downward, and the push rod 402 drives the pulley 408 to contact the ground, so that one side of the heat exchanger can be lifted up. As one side of the heat exchanger gradually rises, the heat exchanger will gradually tilt, and then the sewage inside the passage formed by the medium through hole 9 will flow out due to its own gravity. By setting up the lifting mechanism 4, after the decontamination cleaning mechanism 3 has finished cleaning the inside of the passage, the push rod 402 can be automatically driven to lift one side of the heat exchanger, thereby facilitating the sewage to flow out of the heat exchanger channel.

[0047] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A high heat transfer coefficient plate heat exchanger, comprising a fixed plate (1), a plurality of plates (7), a movable plate (2), and a column (5), characterized in that: The device also comprises a decontamination cleaning mechanism (3), the decontamination cleaning mechanism (3) comprising a cleaning device (30) and a position adjustment device (31), the cleaning device (30) and the position adjustment device (31) being respectively located on two sides of the plate (7), the decontamination cleaning mechanism (3) comprising a storage box (301) and a bellows (304), a water pump being installed inside the storage box (301), one side of the storage box (301) being fixedly connected to one side of the fixed plate (1), and the storage box (301) being away from the fixed plate (1). ) is fixedly connected to one side of the storage box (301) with a conduit (302), the inner wall of the conduit (302) is interference-connected with a sealing plug (303), the upper surface and the lower surface of the storage box (301) are fixedly connected to two bellows (304), one end of the bellows (304) away from the storage box (301) is fixedly connected to a connecting tube (305), the outer wall of the connecting tube (305) is fixedly connected to a plurality of nozzles (306), and one end of the connecting tube (305) away from the bellows (304) is fixedly connected to a hanging ring (308), The position adjustment device (31) comprises a rectangular tube (311), an electric push rod (309), a connecting frame (313), and a connecting rod (314) connected to the connecting frame (313); the vertical end of the connecting frame (313) is sleeved in the rectangular tube (311) and can slide up and down in the rectangular tube (311); one end of the connecting rod (314) is fixedly connected to a hook (315); a plurality of medium through holes (9) are provided on the side of the plate (7); when the heat exchanger needs to be cleaned, the hook (315) abuts against the hanging ring (308) , driving the nozzle (306) to move in the medium through hole (9), one end of the electric push rod (309) is fixed to a side of the movable plate (2) away from the plate (7), the output end of the electric push rod (309) passes through the column (5) and is fixedly connected to a welding plate (310), both ends of the welding plate (310) are fixedly connected to the rectangular tube (311), the cross-section of the connecting frame (313) is "U"-shaped, and the side of the connecting frame (313) close to the movable plate (2) is fixedly connected to one end of the two connecting rods (314) away from the hook (315).

2. A high heat transfer coefficient plate heat exchanger according to claim 1, characterized in that: A plurality of screw rods (12) are slidably penetrated through the side surfaces of the fixed plate (1) and the movable plate (2), and two clamping bolts (13) are threadedly connected to the arc surface of the screw rods (12). A plurality of the plate sheets (7) are located between the fixed plate (1) and the movable plate (2). Two guide rods (6) are slidably penetrated through the side surfaces of the movable plate (2), and two ends of the guide rods (6) are respectively fixedly connected to one side of the fixed plate (1) and one side of the column (5). Two guide holes (8) are provided on the side surfaces of the plate sheets (7), and the inner walls of the guide holes (8) are slidably abutted against the arc surface of the guide rods (6). A plurality of first flange holes (10) are provided on the side surfaces of the fixed plate (1), and the first flange holes (10) correspond to the positions of the medium through holes (9). A plurality of second flange holes (11) are provided on the side surfaces of the movable plate (2), and the second flange holes (11) correspond to the positions of the medium through holes (9).

3. The high heat transfer coefficient plate heat exchanger according to claim 1, characterized in that: Two positioning rods (316) are slidably provided on the side surface of the upright column (5), and one end of the positioning rod (316) is fixedly connected to one side of the welding plate (310).

4. The high heat transfer coefficient plate heat exchanger according to claim 1, characterized in that: A plurality of bristles (307) are fixedly connected to the outer wall of the connecting tube (305), and a plurality of positioning hooks (317) are fixedly connected to a side of the storage box (301) away from the fixing plate (1).

5. The high heat transfer coefficient plate heat exchanger according to claim 2, characterized in that: Two pressure rods (312) are threadedly penetrated on one side of the outer wall of the rectangular tube (311), and one end of the pressure rod (312) abuts against one side of the connecting frame (313).

6. The high heat transfer coefficient plate heat exchanger according to claim 1, characterized in that: A lifting mechanism (4) is provided on the side of the column (5) away from the movable plate (2), and the lifting mechanism (4) comprises a support plate (401), one side of the support plate (401) is fixedly connected to one side of the column (5), a push rod (402) is slidably penetrated through the surface of the support plate (401), a toothed ring (403) is threadedly connected to the arc surface of the push rod (402), and the toothed ring (403) is rotatably connected to the upper surface of the support plate (401), an auxiliary plate (404) is fixedly connected to the side of the column (5) close to the support plate (401), a servo motor (405) is fixedly connected to the lower surface of the auxiliary plate (404), and a gear (406) is fixedly connected to the output end of the servo motor (405), and the gear (406) is meshed with the toothed ring (403).

7. The high heat transfer coefficient plate heat exchanger according to claim 6, characterized in that: A guide rod (407) is slidably provided on the surface of the support plate (401), and one end of the guide rod (407) is fixedly connected to the arc surface of the push rod (402).

8. The high heat transfer coefficient plate heat exchanger according to claim 6, characterized in that: The arc surface of the top rod (402) is rotatably connected to two pulleys (408).

9. The high heat transfer coefficient plate heat exchanger according to claim 2, characterized in that: One side of a plurality of the clamping bolts (13) is fixedly connected to a rubber pad (14), and the plurality of the rubber pads (14) are divided into two groups, one side of the rubber pads (14) of one group abuts against the fixed plate (1), and one side of the rubber pads (14) of the other group abuts against the movable plate (2).

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