An energy-saving heat recovery heat exchanger

Abstract

This invention discloses an energy-saving heat recovery heat exchanger, relating to the field of heat exchanger technology. It includes a positioning frame, a limiting plate with a hot solution inlet and outlet located on the same side as the cold solution inlet and outlet, a heat exchange plate slidably connected to a guide frame between a pressure plate and the limiting plate, a traction separation component connected to the guide frame on the outer side of the heat exchange plate, through holes on the heat exchange plate, and an adaptive vibration component at one end of the heat exchange plate. This invention uses a displacement and spacing unit to rotate the adjusting screw, keeping the traction wires between the threading blocks taut, thus equidistantizing the distance between adjacent heat exchange plates. However, the adjacent heat exchange plates remain sealed together by a sealing strip, allowing cleaning fluid to flow between the heat exchange plates for cleaning without disassembling them. This simple operation improves the cleaning efficiency of the heat exchange plates.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger technology, specifically an energy-saving heat recovery heat exchanger. Background Technology

[0002] Plate heat exchangers are a type of high-efficiency heat exchanger consisting of a series of metal plates with a certain corrugated shape stacked together. Thin rectangular channels are formed between the plates, through which heat exchange occurs. Plate heat exchangers are ideal devices for liquid-liquid and liquid-vapor heat exchange. They are characterized by high heat exchange efficiency, low heat loss, compact and lightweight structure, small footprint, wide application, and long service life.

[0003] During heat exchange, some impurities in the liquid adhere to the surface of the metal plates. As the plate heat exchanger is used for longer periods, the gaps between the metal plates become blocked, which affects the heat exchange efficiency. Generally, when cleaning the heat exchanger, multiple stacked metal plates need to be removed one by one, cleaned, and then reinstalled. Also, if one metal plate is damaged, its adjacent metal plates need to be removed and replaced. This not only increases the workload of the workers but also wastes a lot of time, thus affecting the normal use of the heat exchanger. Summary of the Invention

[0004] The purpose of this invention is to provide an energy-saving heat recovery heat exchanger in order to solve the problem of the inconvenience of self-cleaning heat exchangers.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving heat recovery heat exchanger, comprising a positioning frame, two guide frames mounted on one side of the positioning frame, the two guide frames being symmetrically arranged along the transverse central axis of the positioning frame, an adjusting screw located between the two guide frames on one side of the positioning frame, a threaded extrusion frame movably sleeved at one end of the adjusting screw, a pressure plate slidably connected to the guide frame on one side of the threaded extrusion frame, a limiting plate fixedly connected to the end of the guide frame away from the positioning frame, a cold solution inlet and a cold solution outlet at one end of the limiting plate, a hot solution inlet and a hot solution outlet located on the side of the cold solution inlet and cold solution outlet at another end of the limiting plate, a heat exchange plate slidably connected to the guide frame between the pressure plate and the limiting plate, a traction separation component connected to the guide frame on the outer side of the heat exchange plate, a through hole on the heat exchange plate, and an adaptive vibration component at one end of the heat exchange plate;

[0006] The traction separation component includes a second bidirectional threaded rod rotatably connected to the positioning frame on the side away from the guide frame. A push-positioning frame plate is movably sleeved on the second bidirectional threaded rod. A guide rod is fixedly connected to the top of the positioning frame. The push-positioning frame plate is slidably connected to the guide rod. Multiple second rectangular frames are sleeved on the outer side of the push-positioning frame plate. A U-shaped slider is slidably connected to the top of the guide frame. A locking plate extending to the top of the U-shaped slider and connected to the bottom of the second rectangular frame is inserted into the bottom of the U-shaped slider. An insertion hole is opened on the top of the heat exchange plate. The insertion hole fits with the bottom of the locking plate. Telescopic springs connected to the U-shaped slider are provided on both sides of the locking plate. Displacement and positioning units located on both sides of the locking plate are provided on the top of the U-shaped slider.

[0007] As a further embodiment of the present invention: the displacement and positioning unit includes threaded blocks fixedly connected to the top of the U-shaped slider and located on both sides of the locking plate. A positioning chamber is fixedly connected to the top of the threaded block. A movable insert rod extending to the inner side of the positioning chamber is inserted into the top of the positioning chamber. Two traction wires are provided at the bottom of the movable insert rod. Adjacent U-shaped sliders are connected by traction wires. A first rectangular frame is fixedly connected to the top of the movable insert rod. A first bidirectional threaded rod is rotatably connected to one side of the limiting plate. A U-shaped frame plate is sleeved on the outer side of the first bidirectional threaded rod. The first rectangular frame is slidably connected to the outer side of the U-shaped frame plate. The length of the traction wire between adjacent threaded blocks is greater than the distance between adjacent threaded blocks.

[0008] As a further aspect of the present invention: the height of the push-position frame plate is less than the height of the inner wall of the second rectangular frame, and the width of the push-position frame plate is equal to the width of the inner wall of the second rectangular frame. This structure is provided to prevent the push-position frame plate from affecting the up-and-down movement of the second rectangular frame alone.

[0009] As a further embodiment of the present invention: the outer side of the U-shaped frame plate is attached to the inner wall of the first rectangular frame.

[0010] As a further embodiment of the present invention: the top of the second bidirectional threaded rod is also provided with a guide rod for limiting the U-shaped frame plate in the left and right directions.

[0011] As a further embodiment of the present invention: the bottom end of the positioning chamber is provided with a through hole extending to the inside of the threading block, the positioning chamber is connected to the threading block through the through hole, and the traction wire at the bottom of the movable insertion rod extends through the through hole to the inside of the threading block.

[0012] As a further embodiment of the present invention: the adaptive vibration component includes a first positioning ring installed on one side of the heat exchange plate, a rotating collar rotatably connected to the outer side of the first positioning ring, a movable spring plate installed on the outer wall of the rotating collar, the end of the movable spring plate away from the rotating collar plate being in contact with the heat exchange plate, a baffle plate fixedly connected to the end of the rotating collar plate away from the heat exchange plate, a second positioning ring installed on the other side of the heat exchange plate, and a reset spring plate connected to the outer wall of the first positioning ring on the inner wall of the rotating collar plate.

[0013] As a further aspect of the present invention: sealing strips are provided on both sides of the heat exchange plate, and the thickness of the sealing strips is greater than the sum of the lengths of the rotating collar and the second positioning ring.

[0014] As a further embodiment of the present invention: the center of the second positioning ring and the rotating collar are coaxial, the outer diameter of the second positioning ring is smaller than the outer diameter of the rotating collar, and the inner diameter of the second positioning ring is larger than the outer diameter of the first positioning ring.

[0015] As a further aspect of the present invention: the number of movable springs and flow deflectors is provided in multiples, and the multiple movable springs and flow deflectors are distributed at equal distances along the center of the rotating collar.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. By setting up a traction separation component, pulling the second rectangular frame secures the heat exchange plate to the inside of the guide frame. Releasing the second rectangular frame allows the locking plate to engage with the insertion hole under the elastic restoring force of the telescopic spring. This restricts the lateral movement of the heat exchange plate, improving its stability. After connecting multiple heat exchange plates to multiple U-shaped sliders, the U-shaped slider closest to the limiting plate is fixed to the limiting plate with bolts. Simultaneously, the U-shaped slider closest to the pressure plate is connected to the U-shaped slider with bolts. Then, rotate the adjusting screw. The rotation of the adjusting screw causes the threaded extrusion frame to push the pressure plate towards the limiting plate, thereby stacking the heat exchange plates between the limiting plate and the pressure plate, improving the stacking efficiency of the heat exchange plates. The rotation of the second bidirectional threaded rod causes the pusher plate to move away from the positioning frame. At this time, the pusher plate will lift the locking plate through the second rectangular frame, thereby separating the locking plate from the insertion hole. Then the heat exchange plate can be quickly removed, thus improving the disassembly efficiency of the heat exchange plate.

[0018] 2. By setting up a displacement and positioning unit and rotating the adjusting screw, the traction wires between the wire-threading blocks are taut, thereby making the distance between adjacent heat exchange plates equal. However, the adjacent heat exchange plates are still in a sealed state through the sealing strip. In this way, the surface of the heat exchange plates can be cleaned without disassembling them by allowing cleaning fluid to flow between them. The operation is simple and improves the cleaning efficiency of the heat exchange plates. When disassembling the heat exchange plates, first rotate the first bidirectional threaded rod to move part of the traction wire inside the positioning chamber to the inside of the wire-threading block. When the traction wire is taut, the multiple heat exchange plates will lose contact, thus allowing the multiple heat exchange plates to be quickly separated.

[0019] 3. By incorporating an adaptive vibration element, during the cleaning of the heat exchange plates, the increased distance between adjacent heat exchange plates causes the second positioning ring to separate from the rotating collar, creating a gap between them. When the cleaning fluid flows into this gap, it impacts the baffle plate. The rotating collar then swings in response to the impact, causing the movable spring to swing as well. Simultaneously, the multiple grooves on the surface of the heat exchange plates allow the movable spring to tap the plates with its elasticity during swing, thus improving the separation efficiency of impurities from the heat exchange plates and further enhancing the cleaning effect of the cleaning fluid. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the connection between the U-shaped sliders of the present invention;

[0022] Figure 3 This is a schematic diagram showing the connection between the threading block and the first rectangular frame of the present invention;

[0023] Figure 4 This is a front view of the heat exchange plate of the present invention;

[0024] Figure 5 This is a schematic diagram showing the connection between the heat exchange plate and the first positioning ring of the present invention;

[0025] Figure 6 This is a schematic diagram showing the connection between the second positioning ring and the heat exchange plate of the present invention;

[0026] Figure 7 This is a schematic diagram showing the connection between the second positioning ring and the rotating collar of the present invention;

[0027] Figure 8 This is a schematic diagram showing the connection between the first positioning ring and the rotating collar of the present invention.

[0028] In the diagram: 1. Positioning frame; 2. Adjusting screw; 3. Threaded extrusion frame; 4. Pressure plate; 5. Limiting plate; 6. Hot solution inlet; 7. Hot solution outlet; 8. Cold solution inlet; 9. Cold solution outlet; 10. Heat exchange plate; 11. Guide frame; 12. First bidirectional threaded rod; 13. U-shaped frame plate; 14. Push frame plate; 15. Second bidirectional threaded rod; 16. U-shaped slider; 17. Threading block; 18. Positioning chamber; 19. Movable insertion rod; 20. First rectangular frame; 21. Locking insertion plate; 22. Second rectangular frame; 23. Telescopic spring; 24. Traction wire; 25. Insertion hole; 26. First positioning ring; 27. Second positioning ring; 28. Rotating collar; 29. ​​Movable spring; 30. Baffle plate; 31. Reset spring; 32. Through hole. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0031] Please see Figures 1 to 8In this embodiment of the invention, an energy-saving heat recovery heat exchanger includes a positioning frame 1. Two guide frames 11 are installed on one side of the positioning frame 1, and the two guide frames 11 are symmetrically arranged along the transverse central axis of the positioning frame 1. An adjusting screw 2 is provided on one side of the positioning frame 1 between the two guide frames 11. A threaded pressing frame 3 is movably sleeved at one end of the adjusting screw 2. A pressure plate 4 is provided on one side of the threaded pressing frame 3 and is slidably connected to the guide frame 11. The end of the guide frame 11 away from the positioning frame 1 is fixedly connected to a... Positioning plate 5, one end of which is provided with a cold solution inlet 8 and a cold solution outlet 9, and the other end of which is provided with a hot solution inlet 6 and a hot solution outlet 7 located on the side of the cold solution inlet 8 and the cold solution outlet 9, a heat exchange plate 10 slidably connected to the guide frame 11 is provided between the pressure plate 4 and the positioning plate 5, a traction separation member connected to the guide frame 11 is provided on the outer side of the heat exchange plate 10, a through hole 32 is provided on the heat exchange plate 10, and an adaptive vibration member is provided at one end of the heat exchange plate 10;

[0032] The traction separation component includes a second bidirectional threaded rod 15 rotatably connected to the side of the positioning frame 1 away from the guide frame 11. A push-positioning frame plate 14 is movably sleeved on the second bidirectional threaded rod 15. A guide rod is fixedly connected to the top of the positioning frame 1. The push-positioning frame plate 14 is slidably connected to the guide rod. Multiple second rectangular frames 22 are sleeved on the outer side of the push-positioning frame plate 14. A U-shaped slider 16 is slidably connected to the top of the guide frame 11. A locking plate 21 extending to the top of the U-shaped slider 16 and connected to the bottom of the second rectangular frame 22 is inserted into the bottom of the U-shaped slider 16. An insertion hole 25 is opened on the top of the heat exchange plate 10. The insertion hole 25 fits into the bottom of the locking plate 21. Telescopic springs 23 connected to the U-shaped slider 16 are provided on both sides of the locking plate 21. A displacement and positioning unit located on both sides of the locking plate 21 is provided on the top of the U-shaped slider 16.

[0033] In this embodiment, when assembling the heat exchanger, the second rectangular frame 22 is pulled first. The second rectangular frame 22 drives the locking plate 21 to move, causing the locking plate 21 to retract into the inside of the guide frame 11. Then, the heat exchange plate 10 is fastened to the inside of the guide frame 11. The second rectangular frame 22 is released, and the locking plate 21 is fastened into the insertion hole 25 under the elastic restoring force of the telescopic spring 23. This restricts the left and right movement of the heat exchange plate 10 by the insertion hole 25. After connecting multiple heat exchange plates 10 to multiple U-shaped sliders 16, the U-shaped sliders 16 near the limiting plate 5 are bolted together. The limiting plate 5 is fixedly connected to the U-shaped slider 16 near the pressure plate 4. Then, the adjusting screw 2 is rotated to push the threaded extrusion frame 3 towards the limiting plate 5, so that the heat exchange plates 10 between the limiting plate 5 and the pressure plate 4 are stacked. Then, the high temperature solution and the low temperature solution are injected into the gap between the heat exchange plates 10 through the hot solution inlet 6 and the cold solution inlet 8, respectively, to achieve heat exchange. After heat exchange, the solution is discharged through the cold solution outlet 9 and the hot solution outlet 7.

[0034] Please refer to this carefully. Figure 2 , Figure 3 , Figure 4 The displacement and positioning unit includes a threading block 17 fixedly connected to the top of the U-shaped slider 16 and located on both sides of the locking plate 21. A positioning chamber 18 is fixedly connected to the top of the threading block 17. A movable insert rod 19 extending to the inside of the positioning chamber 18 is inserted into the top of the positioning chamber 18. Two traction wires 24 are provided at the bottom of the movable insert rod 19. Adjacent U-shaped sliders 16 are connected by the traction wires 24. A first rectangular frame 20 is fixedly connected to the top of the movable insert rod 19. A first bidirectional threaded rod 12 is rotatably connected to one side of the limiting plate 5. A U-shaped frame plate 13 is sleeved on the outside of the first bidirectional threaded rod 12. The first rectangular frame 20 is slidably connected to the outside of the U-shaped frame plate 13. The length of the traction wire 24 between adjacent threading blocks 17 is greater than the distance between adjacent threading blocks 17.

[0035] The height of the push-positioning plate 14 is less than the height of the inner wall of the second rectangular frame 22, and the width of the push-positioning plate 14 is equal to the width of the inner wall of the second rectangular frame 22 to prevent the push-positioning plate 14 from affecting the up-and-down movement of the second rectangular frame 22. The outer side of the U-shaped plate 13 is in contact with the inner wall of the first rectangular frame 20. The top of the second bidirectional threaded rod 15 is also provided with a guide rod for limiting the left and right directions of the U-shaped plate 13. The bottom end of the positioning chamber 18 is provided with a through hole extending to the inner side of the wire threading block 17. The positioning chamber 18 is connected to the wire threading block 17 through the through hole, and the traction wire 24 at the bottom of the movable insertion rod 19 extends through the through hole to the inner side of the wire threading block 17.

[0036] In this embodiment, when cleaning the heat exchange plate 10, the adjusting screw 2 is rotated first. The rotation of the adjusting screw 2 moves the pressure plate 4 a certain distance towards the positioning frame 1. At this time, the U-shaped slider 16 connected to the pressure plate 4 will drive the other U-shaped sliders 16 to move, thereby keeping the traction wire 24 between the wire threading blocks 17 taut. This causes a slight movement of the heat exchange plate 10, making the distance between adjacent heat exchange plates 10 equal. However, at this time, the adjacent heat exchange plates 10 are still in a sealed state through the sealing strip. The cleaning solution is then injected into the gaps between adjacent heat exchange plates 10 through the cold solution inlet 8 and the hot solution inlet 6. The increased gaps between the adjacent heat exchange plates 10 allow for greater flow space for the impurities when the cleaning solution impacts them, thus allowing the impurities to be discharged from the gaps with the flow of the cleaning solution. This process eliminates the need to disassemble multiple heat exchange plates 10, simplifying the operation. After cleaning, the adjusting screw 2 is rotated in the reverse direction to cause the pressure plate 4 to press the heat exchange plates 10 again, causing the heat exchange plates 10 to... The gap between 0 is reduced, and the traction wires 24 between adjacent threaded blocks 17 are in a relaxed state. When disassembling the heat exchange plate 10, first rotate the first bidirectional threaded rod 12, so that the U-shaped frame plate 13 moves along the first bidirectional threaded rod 12 toward the limiting plate 5, thereby moving the first rectangular frame 20 toward the positioning chamber 18. At this time, the part of the traction wires 24 located inside the positioning chamber 18 will move to the inside of the threaded block 17. Then, by rotating the adjusting screw 2, the pressure plate 4 loses its pressure on the heat exchange plate 10. When the wire 24 is taut, the multiple heat exchange plates 10 will lose contact, thus allowing for rapid separation of the multiple heat exchange plates 10. Then, the second bidirectional threaded rod 15 is rotated, causing the pusher plate 14 to move away from the positioning frame 1. At this time, the pusher plate 14 will lift the locking plate 21 through the second rectangular frame 22, thereby separating the locking plate 21 from the insertion hole 25. After that, the heat exchange plates 10 can be quickly removed, thus improving the disassembly efficiency of the heat exchange plates 10.

[0037] Please refer to this carefully. Figure 5 , Figure 6 , Figure 7 , Figure 8 The adaptive vibration component includes a first positioning ring 26 mounted on one side of the heat exchange plate 10. A rotating collar 28 is rotatably connected to the outer side of the first positioning ring 26. A movable spring 29 is mounted on the outer wall of the rotating collar 28. The end of the movable spring 29 away from the rotating collar 28 is in contact with the heat exchange plate 10. A flow baffle 30 is fixedly connected to the end of the rotating collar 28 away from the heat exchange plate 10. A second positioning ring 27 is mounted on the other side of the heat exchange plate 10. A reset spring 31 connected to the outer wall of the first positioning ring 26 is provided on the inner wall of the rotating collar 28.

[0038] The heat exchange plate 10 has sealing strips on both sides, and the thickness of the sealing strips is greater than the sum of the lengths of the rotating collar 28 and the second positioning ring 27. The second positioning ring 27 and the rotating collar 28 are coaxial. The outer diameter of the second positioning ring 27 is smaller than the outer diameter of the rotating collar 28. The inner diameter of the second positioning ring 27 is larger than the outer diameter of the first positioning ring 26. Multiple movable springs 29 and baffles 30 are provided, and the multiple movable springs 29 and baffles 30 are distributed at equal distances along the center of the rotating collar 28.

[0039] In this embodiment, when the heat exchange plates 10 approach each other, they are sealed together by the sealing strip, thereby forming a sealed space between adjacent heat exchange plates 10. At this time, the second positioning ring 27 on one side of the heat exchange plate 10 is in contact with the rotating collar 28 on the other side of the heat exchange plate 10, thereby shielding the area around the flow baffle 30. When the solution flows into the gap between adjacent heat exchange plates 10, the flow baffle 30 cannot swing with the impact of the water flow due to the shielding effect of the second positioning ring 27. When cleaning the heat exchange plates 10, the distance between adjacent heat exchange plates 10 increases, and the second positioning ring... The second positioning ring 27 will separate from the rotating collar 28, creating a gap between the second positioning ring 27 and the rotating collar 28. When the cleaning fluid flows into the gap between adjacent heat exchange plates 10, the cleaning fluid will impact the baffle plate 30. At this time, the rotating collar 28 will swing with the impact of the cleaning fluid, thereby causing the movable spring 29 to swing with the rotating collar 28. Meanwhile, since the surface of the heat exchange plate 10 is provided with multiple grooves, the movable spring 29 will knock on the heat exchange plate 10 through its own elasticity when it swings, thereby improving the separation efficiency of impurities from the heat exchange plate 10 and further enhancing the cleaning effect of the cleaning fluid on the heat exchange plate 10.

[0040] The working principle of this invention is as follows: When assembling the heat exchanger, first pull the second rectangular frame 22. The second rectangular frame 22 drives the locking plate 21 to move, causing the locking plate 21 to retract into the inside of the guide frame 11. Then, the heat exchange plate 10 is fastened to the inside of the guide frame 11. The second rectangular frame 22 is released, and the locking plate 21 will be fastened into the insertion hole 25 under the elastic restoring force of the telescopic spring 23. This restricts the left and right movement of the heat exchange plate 10 by the insertion hole 25. After connecting multiple heat exchange plates 10 with multiple U-shaped sliders 16, the U-shaped slider 16 near the limiting plate 5 is fixedly connected to the limiting plate 5 with bolts. At the same time, the U-shaped slider 16 near the pressure plate 4 is connected to the U-shaped slider 16 with bolts. Then, the adjusting screw 2 is rotated. The rotation of the adjusting screw 2 causes the threaded extrusion frame 3 to push the pressure plate 4 towards the limiting plate 5. The heat exchange plates 10 between the limiting plate 5 and the pressure plate 4 are moved to stack each other. When the heat exchange plates 10 approach each other, they are sealed together by the sealing strip to form a sealed space between the adjacent heat exchange plates 10. At this time, the second positioning ring 27 on one side of the heat exchange plate 10 is in contact with the rotating collar 28 on the other side of the heat exchange plate 10, so that the second positioning ring 27 blocks the area around the flow baffle plate 30. When the solution flows into the gap between the adjacent heat exchange plates 10, the flow baffle plate 30 cannot swing with the impact of the water flow because of the blocking of the flow baffle plate 30 by the second positioning ring 27. Then, the high temperature solution and the low temperature solution are injected into the gap between the heat exchange plates 10 through the hot solution inlet 6 and the cold solution inlet 8, respectively, to achieve heat exchange. After the heat exchange, the solution is discharged through the cold solution outlet 9 and the hot solution outlet 7.

[0041] When cleaning the heat exchange plate 10, first rotate the adjusting screw 2. This rotation moves the pressure plate 4 towards the positioning frame 1 a certain distance. At this time, the U-shaped slider 16 connected to the pressure plate 4 will drive the other U-shaped sliders 16 to move, thus keeping the traction wire 24 between the wire-threading blocks 17 taut. This causes a slight movement of the heat exchange plate 10, making the distance between adjacent heat exchange plates 10 equal. However, the adjacent heat exchange plates 10 are still sealed together by the sealing strip. Then, the cleaning fluid is injected into the gaps between the adjacent heat exchange plates 10 through the cold solution inlet 8 and the hot solution inlet 6. The increased gap between the adjacent heat exchange plates 10 increases the flow space for impurities when the cleaning fluid impacts them, allowing the impurities to be discharged from the gaps with the flow of the cleaning fluid. The increased distance between the adjacent heat exchange plates 10 further enhances the cleaning fluid's ability to clean impurities. At this time, the second positioning ring 27 will separate from the rotating collar 28, creating a gap between the second positioning ring 27 and the rotating collar 28. When the cleaning liquid flows into the gap between the adjacent heat exchange plates 10, the cleaning liquid will impact the baffle plate 30. At this time, the rotating collar 28 will swing with the impact of the cleaning liquid, so that the movable spring 29 swings with the rotating collar 28. At the same time, since the surface of the heat exchange plate 10 is provided with multiple grooves, the movable spring 29 will knock on the heat exchange plate 10 through its own elasticity when it swings, thereby improving the separation efficiency of impurities from the heat exchange plate 10 and further enhancing the cleaning effect of the cleaning liquid on the heat exchange plate 10. After cleaning, the adjusting screw 2 is rotated in the opposite direction, so that the pressure plate 4 squeezes the heat exchange plate 10 again, reducing the gap between the heat exchange plates 10. At the same time, the traction wire 24 between the adjacent wire blocks 17 is in a relaxed state.

[0042] When disassembling the heat exchange plate 10, first rotate the first bidirectional threaded rod 12, causing the U-shaped frame plate 13 to move along the first bidirectional threaded rod 12 toward the limiting plate 5, thereby moving the first rectangular frame 20 toward the positioning chamber 18. At this time, the traction wire 24 located inside the positioning chamber 18 will move to the inside of the wire threading block 17. Then, by rotating the adjusting screw 2, the pressure plate 4 will lose its pressure on the heat exchange plate 10. When the traction wire 24 is taut, the multiple heat exchange plates 10 will lose contact, thus allowing the multiple heat exchange plates 10 to be quickly separated. Then, rotate the second bidirectional threaded rod 15, and by rotating the second bidirectional threaded rod 15, the pushing frame plate 14 will move away from the positioning frame 1. At this time, the pushing frame plate 14 will push up the locking insert plate 21 through the second rectangular frame 22, thereby separating the locking insert plate 21 from the insertion hole 25. Then, the heat exchange plate 10 can be quickly removed, thus improving the disassembly efficiency of the heat exchange plate 10.

[0043] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An energy-saving heat recovery heat exchanger comprising a positioning frame (1), characterized in that, The positioning frame (1) is provided with two guide frames (11) on one side, the two guide frames (11) are symmetrically arranged along the transverse center axis of the positioning frame (1), the positioning frame (1) is provided with a distance adjusting screw (2) between the two guide frames (11) on one side, one end of the distance adjusting screw (2) is movably sleeved with a threaded extrusion frame (3), one side of the threaded extrusion frame (3) is provided with a pressing plate (4) which is slidably connected with the guide frame (11), one end of the guide frame (11) away from the positioning frame (1) is fixedly connected with a limiting plate (5), one end of the limiting plate (5) is provided with a cold solution inlet (8), a cold solution outlet (9), one end of the limiting plate (5) is provided with a hot solution inlet (6) and a hot solution outlet (7) which are located on one side of the cold solution inlet (8) and the cold solution outlet (9), the pressing plate (4) and the limiting plate (5) are provided with a heat exchange plate (10) which is slidably connected with the guide frame (11), the outer side of the heat exchange plate (10) is provided with a traction separating piece connected with the guide frame (11), a through hole (32) is formed in the heat exchange plate (10), one end of the heat exchange plate (10) is provided with a self-adaptive vibration piece; The traction separating piece comprises a second double-direction threaded rod (15) which is rotatably connected to one side of the positioning frame (1) away from the guide frame (11), a push position frame plate (14) is movably sleeved on the second double-direction threaded rod (15), a guide rod is fixedly connected to the top of the positioning frame (1), the push position frame plate (14) is slidably connected with the guide rod, a plurality of second rectangular frames (22) are sleeved on the outer side of the push position frame plate (14), a U-shaped sliding block (16) is slidably connected to the top of the guide frame (11), a locking insertion plate (21) is inserted into the top of the U-shaped sliding block (16) and connected with the bottom of the second rectangular frame (22), an insertion hole (25) is formed in the top of the heat exchange plate (10), the insertion hole (25) is matched with the bottom of the locking insertion plate (21), extension springs (23) are arranged on both sides of the locking insertion plate (21) and connected with the U-shaped sliding block (16), displacement distance units are arranged on both sides of the locking insertion plate (21) and located on the top of the U-shaped sliding block (16); The displacement distance unit comprises a threading block (17) fixedly connected with the top of the U-shaped slider (16) and located on both sides of the locking insertion plate (21), the top of the threading block (17) is fixedly connected with a positioning bin (18), the positioning bin (18) is inserted with a movable insertion rod (19) extending to the inner side of the positioning bin (18), the bottom of the movable insertion rod (19) is provided with two traction wires (24), adjacent U-shaped sliders (16) are connected through the traction wires (24), the top end of the movable insertion rod (19) is fixedly connected with a first rectangular frame (20), one side of the limiting plate (5) is rotatably connected with a first bidirectional screw rod (12), the outer side of the first bidirectional screw rod (12) is sleeved with a U-shaped frame plate (13), the first rectangular frame (20) is slidably connected to the outer side of the U-shaped frame plate (13), the length of the traction wire (24) between adjacent threading blocks (17) is greater than the distance between adjacent threading blocks (17). The self-adaptive vibration part comprises a first positioning ring (26) mounted on one side of the heat exchange plate (10), the outer side of the first positioning ring (26) is rotatably connected with a rotating sleeve ring (28), the outer wall of the rotating sleeve ring (28) is mounted with a movable elastic sheet (29), the end of the movable elastic sheet (29) away from the rotating sleeve ring (28) is attached to the heat exchange plate (10), the end of the rotating sleeve ring (28) away from the heat exchange plate (10) is fixedly connected with a flow resistance plate (30), the other side of the heat exchange plate (10) is mounted with a second positioning ring (27), the inner wall of the rotating sleeve ring (28) is provided with a reset elastic sheet (31) connected with the outer wall of the first positioning ring (26). The center of the second positioning ring (27) and the rotating sleeve ring (28) is coaxial, the outer wall diameter of the second positioning ring (27) is smaller than the outer wall diameter of the rotating sleeve ring (28), and the inner wall diameter of the second positioning ring (27) is greater than the outer wall diameter of the first positioning ring (26).

2. The energy-saving heat-recovery heat exchanger according to claim 1, characterized in that, The height of the push position frame plate (14) is smaller than the inner wall height of the second rectangular frame (22), and the width of the push position frame plate (14) is equal to the inner wall width of the second rectangular frame (22).

3. The energy-saving heat-recovery heat exchanger according to claim 1, characterized in that, The outer side of the U-shaped frame plate (13) is attached to the inner wall of the first rectangular frame (20).

4. The energy-saving heat-recovery heat exchanger according to claim 1, characterized in that, The top of the second bidirectional screw rod (15) is also provided with a guide rod for limiting the left-right direction of the U-shaped frame plate (13).

5. The energy-saving heat-recovery heat exchanger according to claim 1, characterized in that, The bottom end of the positioning bin (18) is provided with a through hole extending to the inner side of the threading block (17), the positioning bin (18) is communicated with the threading block (17) through the through hole, and the traction wire (24) at the bottom of the movable insertion rod (19) extends to the inner side of the threading block (17) through the through hole.

6. The energy-saving heat-recovery heat exchanger according to claim 1, characterized in that The heat exchange plate (10) is provided with a sealing strip on both sides, and the thickness of the sealing strip is greater than the sum of the lengths of the rotating sleeve ring (28) and the second positioning ring (27).

7. The energy-saving heat-recovery heat exchanger according to claim 1, characterized in that The number of the movable elastic sheets (29) and the flow resistance plates (30) is multiple, and the multiple movable elastic sheets (29) and the flow resistance plates (30) are distributed equidistantly along the center of the rotating sleeve ring (28).

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