A plate heat exchanger

Abstract

The present application relates to the technical field of plate heat exchange equipment, and in particular to a plate heat exchanger comprising a frame, a plurality of heat exchange plates disposed on the frame, and a water inlet pipe and a water outlet pipe disposed on the frame, wherein the frame is provided with a support assembly for supporting the plurality of heat exchange plates, the support assembly comprising a first support shaft disposed on the frame, a first support rod fixed to the first support shaft, and a second support rod disposed on the first support rod, wherein the axis of the first support shaft is disposed horizontally, the first support rod rotates about the first support shaft in a direction toward or away from the ground, and a connecting assembly for connecting to the second support rod is slidably connected to the frame. The present application facilitates the cleaning of scale deposits on the heat exchange plates.

Description

Technical Field

[0001] The present application relates to the technical field of plate heat exchange equipment, and in particular to a plate heat exchanger. Background Art

[0002] Plate heat exchangers, as an important equipment in the field of modern industrial heat exchange, are composed of a frame, support rods fixed to the frame, and multiple metal plates inserted into the support rods. At the same time, a compression plate for compressing the multiple metal plates is slidably connected to the frame, and the compression plate and the frame are connected by multiple bolts. The stacking of multiple metal plates forms a heat exchange channel. The corrugated design on these plates enhances the turbulent effect of the fluid and achieves efficient heat exchange. Inside the plate heat exchanger, when hot and cold water pass through the plates, the dissolved solids in the water will deposit and crystallize on the surface of the plates, forming scale. The presence of scale will increase the thermal resistance of the plates, reduce heat exchange efficiency, and also increase energy consumption. In addition, microorganisms will form a biofilm on the surface of the plate heat exchanger, resulting in a rough surface of the plates, increasing thermal resistance and reducing heat transfer efficiency. Therefore, the plates need to be cleaned regularly.

[0003] For example, the Chinese patent document with the announcement number CN118391944B discloses a plate heat exchanger, comprising: a first end plate and a second end plate, which are arranged relative to the first end plate in a first direction; a heat exchange structure, which is arranged between the first end plate and the second end plate, and the heat exchange structure comprises: a plurality of heat exchange plate groups, the plurality of heat exchange plate groups are arranged in a spaced relationship along the first direction, and a first heat exchange cavity is formed between any two adjacent heat exchange plate groups, and a first sealing structure is provided between any two adjacent heat exchange plate groups to seal the first heat exchange cavity using the first sealing structure; each heat exchange plate group comprises: a first heat exchange plate and a second heat exchange plate, The first heat exchange plate and the second heat exchange plate are spaced apart in the first direction, and a second heat exchange cavity is formed between the first heat exchange plate and the second heat exchange plate. A second sealing structure is provided between the first heat exchange plate and the second heat exchange plate to seal the second heat exchange cavity by utilizing the second sealing structure. In the first direction, there is a first interval between two adjacent heat exchange plate groups, and a second interval between the first heat exchange plate and the second heat exchange plate. The first interval is larger than the second interval. Such an arrangement can make the width of the first heat exchange cavity in the first direction larger, thereby preventing impurities in the liquid medium from accumulating between the first heat exchange plate and the second heat exchange plate, and further preventing blockage in the first heat exchange cavity.

[0004] In the above-mentioned related technologies, due to the increase in the heat exchange chamber, the blockage of the heat exchange chamber can be reduced. However, during long-term use, scale will form on the heat exchange plate, and the heat exchange plate needs to be removed regularly for scale cleaning; during the cleaning process, the staff first needs to pull the clamping plate to move in the opposite direction. After the clamping plate moves a certain distance, the heat exchange plate close to the clamping plate is pulled to move. During the movement of the heat exchange plate, the scale on the heat exchange plate can be removed by knocking and vibrating. After moving a certain distance, a distance is formed between adjacent heat exchange plates. Since there are multiple heat exchange plates, the staff needs to move the heat exchange plate in the opposite direction multiple times. During the process of moving the heat exchange plate in the opposite direction, the staff is also required to knock each heat exchange plate, which leads to a decrease in the scale cleaning speed and an increase in the strength of the staff. Summary of the Invention

[0005] The present application provides a plate heat exchanger, which aims to solve the problem of decreased scale cleaning speed on the heat exchange plate in the related art.

[0006] The plate heat exchanger provided in this application adopts the following technical solution:

[0007] The cam is fixed to the chassis and the chassis is provided with a plurality of support rods, the support rods being fixed to the chassis and the support rods being provided with a plurality of support rods.

[0008] By adopting the above technical solution, when it is necessary to clean the scale on the heat exchange plate, the pressing plate on the frame is removed, and then the driving member drives the connecting assembly to move up and down. During the up and down movement of the connecting assembly, the first support rod and the second support rod will be driven to swing around the axial direction of the first support shaft. When the swinging frequency of the first support rod is increased, the multiple heat exchange plates mounted on the first support rod will be shaken. During the shaking process, the multiple heat exchange plates abutting each other will be shaken apart. At the same time, part of the scale on the heat exchange plates can be shaken off during the shaking process, thereby realizing automatic cleaning of the scale on the heat exchange plates. In addition, after the heat exchange plates are shaken apart, the driving member drives the connecting assembly to move downward. At this time, the first support rod is tilted downward. Since the multiple heat exchange plates are shaken apart, the distance between adjacent heat exchange plates will become larger, which is convenient for subsequent staff to clean the scale that has not fallen off the heat exchange plates.

[0009] Optionally, the frame is provided with a pushing component for pushing the shaken heat exchange plate to rotate to an inclined state, the pushing component includes a mounting frame slidably connected to the frame, a pushing steel rope fixed on the mounting frame, and a pushing cylinder fixed on the frame, the pushing cylinder pushes the mounting frame to slide along the axial direction of the first support shaft, and the mounting frame is provided with a control component for disengaging the pushing steel rope and the heat exchange plate in the inclined state.

[0010] By adopting the above technical solution, after the heat exchange plate is shaken open, the first support rod is rotated to a vertical state, and then the cylinder is pushed to push the mounting frame and the pushing steel rope set on the mounting frame to move, and the pushing steel rope pushes the scattered heat exchange plate to rotate to an inclined state, and then the control component adjusts the position of the pushing steel rope so that the pushing steel rope is separated from the side of the inclined heat exchange plate, and then the inclined heat exchange plate automatically rotates to a vertical state under the action of gravity. In the process of rotating to the vertical state, the rotating heat exchange plate will vibrate, which is convenient for further cleaning of scale on the heat exchange plate.

[0011] Optionally, the control assembly includes a control plate slidably connected to the mounting frame and a first control shaft and a second control shaft rotatably connected to the control plate, the first control shaft is arranged above the second control shaft and is arranged on the side of the second control shaft close to the inlet and outlet water pipes of the pressure plate, the pushing steel rope abuts against the first control shaft and the second control shaft, the first control shaft and the second control shaft make the pushing steel rope form a first horizontal part, a vertical part and a second horizontal part, and the first horizontal part is arranged above the second horizontal part for abutting against the inclined side of the heat exchange plate, and the mounting frame is provided with a driving assembly for driving the control plate to move toward or away from the water inlet pipe.

[0012] By adopting the above technical solution, when the pushing cylinder pushes the mounting frame and the pushing steel rope arranged on the mounting frame to move along the axial direction of the first support shaft, the control steel rope pushes the shaken heat exchange plate to rotate in an inclined state, and the first horizontal part abuts against the sides of all heat exchange plates, and then drives the first control shaft and the second control shaft to move close to the water inlet pipe through the driving component. At this time, the first horizontal part becomes shorter, the second horizontal part becomes longer, and the heat exchange plate corresponding to the second horizontal part is not limited. At this time, the inclined heat exchange plate corresponding to the second horizontal part rotates to a vertical state under the action of gravity. In the process of rotating to the vertical state, the heat exchange plate will vibrate to a certain extent, which better separates the scale. In addition, the heat exchange plate rotated to the vertical state is not blocked by other heat exchange plates, which can facilitate the staff to clean the heat exchange plate rotated to the vertical state.

[0013] Optionally, the first control shaft and the second control shaft are provided with limiting grooves for limiting the position of the pushing steel rope.

[0014] By adopting the above technical solution, under the action of the limiting groove, the first control shaft and the second control shaft can prevent the steel rope from being disengaged during the movement, and thus can be more stable during the movement.

[0015] Optionally, the connecting assembly includes a connecting plate slidably connected to the frame, a second support shaft rotatably connected to the connecting plate, a connecting frame rotatably connected to the second support shaft, and a connecting shaft fixedly mounted on the connecting frame, the second support rod is rotatably connected to the connecting shaft at one end away from the first support rod, and the axis of the connecting shaft and the axis of the second support shaft are arranged perpendicularly, the first support rod is provided with a support groove for accommodating the second support rod, and a fixing assembly for fixing the position of the first support shaft is provided on the frame.

[0016] By adopting the above technical solution, when the driving member drives the connecting plate to move up and down, the second support rod rotates around the second support axis. When the heat exchange plate needs to be installed and removed, the second support rod is rotated out of the support groove, and the fixing assembly fixes the position of the first support rod, thereby making the position of the first support rod more stable and facilitating the installation and removal of the heat exchange plate.

[0017] Optionally, the fixing assembly includes a sliding rod slidably connected to the frame and a first fixed block and a second fixed block fixed on the sliding rod, the first support shaft is provided with a first fixed groove for the first fixed block to be inserted into, and the frame is provided with a second fixed groove for the second fixed block to be inserted into, and the cross-section of the first fixed groove is smaller than the cross-section of the second fixed groove.

[0018] By adopting the above technical solution, when the first fixed block is in the first fixed groove and the second fixed block is in the second fixed groove, the first support shaft is fixed to the frame, and then the second support rod is rotated along the axis of the connecting shaft, and the end of the first support rod is opened. At this time, it is convenient to remove the heat exchange plate from the first support rod or install the heat exchange plate on the first support rod. When the first support rod needs to be rotated, the sliding rod is pushed to move the first fixed block into the second fixed groove, and the second fixed block is disengaged from the second fixed groove. Then the first support shaft is unlocked, and the driving member can drive the first support rod to swing up and down.

[0019] Optionally, the drive assembly includes a drive screw rotatably connected to the mounting frame and a drive motor fixed to the mounting frame, the output shaft of the drive motor is fixedly connected to the drive screw, and the drive screw is passed through the control panel and threadedly connected to the control panel.

[0020] By adopting the above technical solution, when the inclined heat exchange plate needs to be rotated to a vertical state, the driving motor drives the driving screw to rotate, and then the driving screw drives the control plate to slide on the mounting frame, and then the length of the second horizontal part is adjusted, so that the inclined heat exchange plate can be rotated to a vertical state under the action of gravity.

[0021] Optionally, a third support rod for supporting multiple heat exchange plates is slidably connected to the frame, and a support cylinder is fixedly installed on the third support rod. The support cylinder body is fixed on the frame and is used to drive the third support rod to slide in the vertical direction.

[0022] By adopting the above technical solution, the third support rod is used to support multiple heat exchange plates, and when the heat exchange plate needs to be rotated to a tilted state, the support cylinder drives the third support rod to move downward to make space for the heat exchange plate to rotate.

[0023] Optionally, the frame is provided with a toggle assembly for toggling the heat exchange plates that are not spread out on the first support rod, and the toggle assembly includes a toggle plate and a toggle cylinder mounted on the first support rod, one end of the toggle cylinder is fixed to the toggle plate, and the other end is fixed to the frame.

[0024] By adopting the above technical solution, when the heat exchange plate needs to be shaken, the toggle cylinder is first used to push the toggle plate to move, and the toggle plate pushes multiple heat exchange plates to move simultaneously, thereby preventing the heat exchange plate from hitting the rack during the shaking process.

[0025] Optionally, a limiting rod for limiting the position of the shaken-out heat exchange plate is provided on the second support rod, and the limiting rod and the first support rod are arranged at an angle.

[0026] By adopting the above technical solution, under the action of the limiting rod, it can be prevented that the heat exchange plate moves onto the second support rod when the heat exchange plate is shaken.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The driving member drives the connecting assembly to move up and down. During the up and down movement of the connecting assembly, the first support rod and the second support rod will be driven to swing up and down around the axis direction of the first support shaft. When the swing frequency of the first support rod is increased, the multiple heat exchange plates mounted on the first support rod will vibrate. During the shaking process, the multiple heat exchange plates that are abutted together will be shaken apart. At the same time, part of the scale on the heat exchange plates can be shaken off during the shaking process, thereby automatically cleaning the scale on the heat exchange plates.

[0029] 2. Push the steel rope to push the scattered heat exchange plates to rotate to an inclined state, and then the control panel adjusts the position of the pushing steel rope so that the pushing steel rope and the side of the inclined heat exchange plate no longer abut each other. Then, the inclined heat exchange plate automatically rotates to a vertical state under the action of gravity. In the process of rotating to the vertical state, the rotating heat exchange plate will vibrate, which is convenient for further cleaning of scale on the heat exchange plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the heat exchanger of an embodiment of the present application.

[0031] Figure 2 This is the main view of the heat exchanger of the embodiment of the present application.

[0032] Figure 3 It is a structural schematic diagram of the heat exchange plate in an embodiment of the present application rotated to an inclined state.

[0033] Figure 4 It is a schematic diagram of the connection component structure of an embodiment of the present application.

[0034] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0035] Figure 6 It is a schematic diagram of the structure of the driving component and the control component of an embodiment of the present application.

[0036] Figure numerals: 01, frame; 04, driving member; 05, pressing plate; 1, supporting assembly; 11, first supporting shaft; 12, first supporting rod; 13, second supporting rod; 2, pushing assembly; 21, mounting frame; 22, pushing steel rope; 221, first horizontal portion; 222, vertical portion; 223, second horizontal portion; 23, pushing cylinder; 3, connecting assembly; 31, connecting plate; 32, second supporting shaft; 33, connecting frame; 34, connecting shaft; 4, control group Parts; 41. Control board; 42. First control shaft; 43. Second control shaft; 5. Fixing assembly; 51. Sliding rod; 52. First fixing block; 53. Second fixing block; 54. First fixing slot; 55. Second fixing slot; 6. Supporting slot; 61. Limiting rod; 62. Third supporting rod; 63. Supporting cylinder; 64. Limiting slot; 7. Driving assembly; 71. Driving screw; 72. Driving motor; 8. Toggle assembly; 81. Toggle plate; 82. Toggle cylinder. DETAILED DESCRIPTION

[0037] The following combination Figures 1-6 This application is described in further detail.

[0038] The present application embodiment discloses a plate heat exchanger. Figure 1A plate heat exchanger includes a frame 01 and a water inlet pipe and a water outlet pipe arranged on the frame 01. The frame 01 is provided with a support assembly 1 for supporting multiple heat exchange plates. At the same time, the frame 01 is provided with a driving member 04 for shaking the heat exchange plates on the support assembly 1, and then spreading the heat exchange plates. The frame 01 is provided with a pushing assembly 2 for pushing the spread heat exchange plates to rotate to an inclined state. The pushing assembly 2 is provided with a control assembly 4 for no longer limiting the heat exchange plates in the inclined state. When the pushing assembly 2 no longer limits the inclined heat exchange plates, the inclined heat exchange plates rotate to a vertical state under the action of gravity.

[0039] Reference Figure 1 and Figure 2 The support assembly 1 includes a first support shaft 11 rotatably connected to the frame 01, a first support rod 12 fixed to the first support shaft 11, and a second support rod 13 provided on the first support rod 12. A connecting assembly 3 for connecting to the second support rod 13 is provided on the frame 01, and the second support rod 13 is rotatably connected to the connecting assembly 3. The connecting assembly 3 is slidably connected to the frame 01 along the vertical direction. During the up and down movement of the connecting assembly 3, the first support rod 12 and the second support rod 13 will be driven to swing up and down around the axis of the first support shaft 11. During the up and down swinging of the first support rod 12, the second support rod 13 will also rotate on the connecting assembly 3, while the second support rod 13 slides on the first support rod 12. A clamping plate 05 is slidably connected to the first support rod 12, and a clamping bolt is provided on the clamping plate 05. The clamping bolts are used to clamp the multiple heat sinks to the frame 01.

[0040] Reference Figures 1 to 3 The connecting assembly 3 includes a connecting plate 31 slidably connected to the frame 01, a second support shaft 32 rotatably connected to the connecting plate 31, a connecting frame 33 rotatably connected to the second support shaft 32, and a connecting shaft 34 fixedly mounted on the connecting frame 33. The second support rod 13 is rotatably connected to the connecting shaft 34 at one end away from the first support rod 12. The axes of the second support shaft 32 and the first support shaft 11 are both horizontally arranged, and the axis of the connecting shaft 34 is vertically arranged. The second support rod 13 can rotate around the connecting shaft 34 in a horizontal plane, and can also rotate around the second support shaft 32 in a vertical direction.

[0041] Reference Figures 3 to 5, a fixing component 5 for fixing the position of the first support shaft 11 is provided on the frame 01. When the fixing component 5 fixes the position of the first support shaft 11, the first support rod 12 cannot rotate; then a support groove 6 is opened on the first support rod 12, and the support groove 6 is used to accommodate the second support rod 13. The first support rod 12 can be supported by the second support rod 13, thereby improving the strength of the first support rod 12. In addition, when the second support rod 13 rotates in the horizontal direction and the second support rod 13 is out of the support groove 6, the end of the first support rod 12 is opened, and then the heat exchange plate can be removed from the first support rod 12 or the heat exchange plate can be inserted into the first support shaft 11. When installing or removing the heat exchange plate on the first support rod 12, the first support rod 12 needs to be set horizontally, and the fixing component 5 fixes the position of the first support shaft 11, and the second support rod 13 is out of the support groove 6.

[0042] In this embodiment, the driving member 04 is configured as a driving cylinder, the cylinder body of the driving cylinder is fixed to the frame 01, and the piston rod is fixed to the connecting plate 31. When the driving cylinder works, it drives the connecting plate 31 to move up and down, and then the first support rod 12 and the second support rod 13 can be made to swing up and down around the axis of the first support shaft 11. When the frequency of the driving cylinder driving the connecting plate 31 to move up and down becomes faster, the first support rod 12 and the second support rod 13 can be made to vibrate. During the shaking process, the heat exchange plate can be driven to vibrate, thereby increasing the distance between adjacent heat exchange plates, and then the scale attached to the heat exchange plate can be shaken off, thereby achieving the purpose of facilitating the cleaning of the scale on the heat exchange plate. In addition, in this embodiment, in order to facilitate the sliding of the heat exchange plate on the first support rod 12, the first support rod 12 is configured as a round rod, and the diameter of the mounting hole on the heat exchange plate passing through the first support rod 12 is larger than the cross-section of the first support rod 12.

[0043] Reference Figures 1 to 5 A limit rod 61 is provided on the second support rod 13. The limit rod 61 and the first support rod 12 are set at an angle. The limit rod 61 is used to limit the position of the shaking heat exchange plate. When the heat exchange plate is shaken, the heat exchange plate can slide along the length direction of the first support rod 12 and finally abut against the limit rod 61.

[0044] Reference Figures 1 to 5The fixing assembly 5 includes a sliding rod 51 slidably connected to the first support shaft 11 and a first fixing block 52 and a second fixing block 53 fixed on the sliding rod 51. The sliding rod 51 is away from the first fixing block 52 and the second fixing block 53 are both configured as hexagonal prisms, and the cross-section of the first fixing block 52 is smaller than the diameter of the second fixing block 53. A first fixing groove 54 for plugging the first fixing block 52 is provided on the first support shaft 11, and a second fixing groove 55 for plugging the second fixing block 53 is provided on the frame 01. The cross-sections of the first fixing groove 54 and the first fixing block 52 are the same, and the second fixing groove 55 and the second fixing The cross-section of the blocks 53 is the same. When the first fixed block 52 is in the first fixed groove 54 and the second fixed block 53 is in the second fixed groove 55, the first support shaft 11 can be fixed on the frame 01. Then, when the first support rod 12 needs to be rotated, the sliding rod 51 is pushed to make the sliding rod 51 drive the first fixed block 52 and the second fixed block 53 to move, and then the first fixed block 52 is moved to the second fixed groove 55, and the second fixed block 53 extends out of the second fixed groove 55. At this time, the position of the first support shaft 11 is no longer fixed, and then the first support rod 12 and the second support rod 13 can be driven to swing up and down by driving the cylinder.

[0045] Reference Figures 2 to 6 The pushing component 2 includes a mounting frame 21 slidably connected to the frame 01, a pushing steel rope 22 fixed on the mounting frame 21, and a pushing cylinder 23 fixed on the frame 01. The piston rod of the pushing cylinder 23 is fixed on the mounting frame 21. The pushing cylinder 23 pushes the mounting frame 21 to slide on the frame 01 along the length direction perpendicular to the first support rod 12. The control component 4 on the mounting frame 21 adjusts the position of the pushing steel rope 22, so that the number of heat exchange plates abutting the pushing steel rope 22 can be gradually reduced.

[0046] During the movement of the mounting frame 21, the pushing steel rope 22 will be driven to move, and then the pushing steel rope 22 will abut against the side of the heat exchange plate. When the mounting frame 21 continues to move horizontally, the pushing steel rope 22 will push the multiple scattered heat exchange plates to rotate around the first support rod 12, and finally the scattered heat exchange plates will be rotated to an inclined state. At this time, the position of the pushing steel rope 22 is adjusted by the control component 4, so that the pushing steel rope 22 gradually no longer abuts against the heat exchange plate. At this time, the heat exchange plate that is not abutted against the pushing steel rope 22 will rotate to a vertical state under the action of gravity. Vibration will occur during the rotation, and then the scale on the heat exchange plate will be further cleaned.

[0047] Reference Figures 2 to 6The control assembly 4 includes a control plate 41 slidably connected to the mounting frame 21 and a first control shaft 42 and a second control shaft 43 rotatably connected to the control plate 41. The pushing steel rope 22 is simultaneously wound around the first control shaft 42 and the second control shaft 43. In this embodiment, the first control shaft 42 is arranged above the second control shaft 43, and the first control shaft 42 is arranged on the side of the second control shaft 43 close to the water outlet pipe. Then, under the action of the first control shaft 42 and the second control shaft 43, the pushing steel rope 22 sequentially forms a first horizontal portion 221, a vertical portion 222 and a second horizontal portion 223. The height of the first horizontal portion 221 is higher than the second horizontal portion 223, and the first horizontal portion 221 abuts against the side of the heat exchange plate, and the second horizontal portion 223 is arranged below the heat exchange plate. In addition, a limiting groove 64 for limiting the position of the pushing steel rope 22 is provided on the first control shaft 42 and the second control shaft 43. Through the setting of the limiting groove 64, the occurrence of the pushing steel rope 22 detaching from the first control shaft 42 and the second control shaft 43 can be reduced during the movement of the control plate 41.

[0048] In the initial state, the length of the first horizontal portion 221 is greater than the length of the second horizontal portion 223, and all the inclined heat exchange plates are in contact with the first horizontal portion 221. During the movement of the control plate 41 toward the water outlet pipe, the length of the first horizontal portion 221 will become shorter. At this time, the number of heat exchange plates in contact with the first horizontal portion 221 will decrease, and the length of the second horizontal portion 223 will become longer. Then, during the movement, the inclined heat exchange plates will rotate to a vertical state in sequence, thereby facilitating the cleaning of scale on the heat exchange plates.

[0049] Reference Figures 2 to 6 A driving assembly 7 is provided on the mounting frame 21 for driving the control board 41 to reciprocate along the length direction of the first support rod 12. The driving assembly 7 includes a driving screw 71 rotatably connected to the mounting frame 21 and a driving motor 72 fixed to the mounting frame 21. The output shaft of the driving motor 72 is fixed on the driving screw 71. The driving screw 71 is passed through the control board 41 and is threadedly connected to the control board 41. The driving motor 72 rotates and then drives the driving screw 71 to rotate, thereby adjusting the position of the control board 41, and then facilitating the adjustment of the length of the first horizontal portion 221 and the length of the second horizontal portion 223.

[0050] Reference Figures 2 to 6, a toggle assembly 8 is provided on the rack 01 for toggling the heat exchange plates that have not been dispersed away from the water inlet pipe. Then, during the swinging process, the heat exchange plates at the edge can be prevented from hitting the rack 01. The toggle assembly 8 includes a toggle plate 81 and a toggle cylinder 82, which are sleeved on the first support rod 12. One end of the toggle cylinder 82 is fixed to the toggle plate 81, and the other end is fixed to the rack 01. The toggle plate 81 is provided with a clearance hole for the first support rod 12 to pass through. The diameter of the clearance hole is larger than the cross-section of the first support rod 12. Then, during the swinging process of the first support rod 12, the first support rod 12 will not hit the inner wall of the clearance hole. Before shaking the heat exchange plate, the toggle cylinder 82 is used to push the toggle plate 81 to move. The toggle plate 81 pushes the heat exchange plate to move. After the moving distance is sufficient for the heat exchange plate to swing, the toggle cylinder 82 drives the toggle plate 81 to move in the opposite direction to its initial position. Finally, the heat exchange plate is shaken by the up and down swinging of the first support rod 12.

[0051] Reference Figures 2 to 6 A third support rod 62 is slidably connected to the frame 01. The third support rod 62 is arranged under the heat exchange plate to support the heat exchange plate. A support cylinder 63 is provided on the frame 01. The cylinder body of the support cylinder 63 is fixed on the frame 01, and the piston rod is fixed on the third support rod 62. When it is necessary to clean the scale on the heat exchange plate, the third support rod 62 is driven to move by the support cylinder 63, and then it can play a role of making way during the rotation of the heat exchange plate. In addition, when the third support rod 62 contacts the bottom side of the heat exchange plate, multiple heat exchange plates can be supported, thereby improving the stability of the entire device during use.

[0052] The implementation principle of a plate heat exchanger in the embodiment of the present application is as follows: when the heat exchange plate needs to be removed to clean the scale, the toggle plate 81 is first driven to move by the toggle cylinder 82, and the toggle plate 81 pushes the heat exchange plate to move a certain distance, and then the toggle plate 81 is reset in the reverse direction, and the connecting component 3 is driven to move up and down by the driving cylinder. During the downward movement of the connecting component 3, the first support rod 12 will rotate around the first support shaft 11, and the second support rod 13 will rotate around the second support shaft 32, and the second support rod 13 will slide on the first support rod 12. During the up and down swinging of the first support rod 12, the heat exchange plate will be shaken, thereby shaking off the heat exchange plates abutting each other, and the scale attached to the heat exchange plate will fall off during the shaking process, and then the mounting frame 21 is moved to push the steel rope 22 to push the vertical heat exchange plate to rotate to the inclined state, and when the control plate 41 moves closer During the movement of the water inlet pipe, the number of heat exchange plates in contact with the first horizontal part 221 decreases, and then the heat exchange plates that are not in contact with the first horizontal part 221 will rotate to a vertical state under the action of gravity. During the rotation process, the heat exchange plates can have a certain vibration effect, further cleaning the remaining scale on the heat exchange plates. In addition, by adjusting the moving speed of the control plate 41, the speed at which the heat exchange plates rotate to the vertical state can be slowed down. Then, during the falling process, only one staff member is required to use a high-pressure water gun to achieve the purpose of cleaning the remaining scale on the heat exchange plates, thereby improving the efficiency of heat exchange plate disassembly on the one hand and reducing the manual labor intensity on the other hand. In addition, in order to facilitate the shaking of the heat exchange plates, the second support rod 13 can be rotated around the axis of the connecting shaft 34, so that the second support rod 13 rotates out of the support groove 6, and the clamping plate 05 is removed from the second support rod 13.

[0053] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A plate heat exchanger comprising a frame, a plurality of heat exchange plates arranged on the frame, and a water inlet pipe and a water outlet pipe arranged on the frame, characterized in that:

18. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod having a first end in contact with said linking rod and a second end in contact with said linking rod.

2. A plate heat exchanger according to claim 1, characterized in that: The frame is provided with a pushing component for pushing the shaken heat exchange plate to rotate to an inclined state, the pushing component includes a mounting frame slidably connected to the frame, a pushing steel rope fixed on the mounting frame, and a pushing cylinder fixed on the frame, the pushing cylinder pushes the mounting frame to slide along the axial direction of the first support shaft, and the mounting frame is provided with a control component for disengaging the pushing steel rope and the heat exchange plate in the inclined state.

3. The plate heat exchanger according to claim 2, characterized in that: The control assembly includes a control plate slidably connected to the mounting frame and a first control shaft and a second control shaft rotatably connected to the control plate. The first control shaft is arranged above the second control shaft and is arranged on the side of the second control shaft close to the water inlet pipe of the pressure plate. The pushing steel rope is wound around the first control shaft and the second control shaft. The first control shaft and the second control shaft make the pushing steel rope form a first horizontal part, a vertical part and a second horizontal part, and the first horizontal part is arranged above the second horizontal part for abutting the side of the inclined heat exchange plate. The mounting frame is provided with a driving assembly for driving the control plate to move toward or away from the water inlet pipe.

4. The plate heat exchanger according to claim 3, characterized in that: The first control shaft and the second control shaft are provided with limiting grooves for limiting the position of the pushing steel rope.

5. The plate heat exchanger according to claim 2, characterized in that: The connecting assembly includes a connecting plate slidably connected to the frame, a second support shaft rotatably connected to the connecting plate, a connecting frame rotatably connected to the second support shaft, and a connecting shaft fixedly mounted on the connecting frame, the second support rod is rotatably connected to the connecting shaft at one end away from the first support rod, and the axis of the connecting shaft is arranged perpendicular to the axis of the second support shaft, and a support groove for accommodating the second support rod is opened on the first support rod.

6. The plate heat exchanger according to claim 3, characterized in that: The driving assembly includes a driving screw rotatably connected to the mounting frame and a driving motor fixed to the mounting frame. The output shaft of the driving motor is fixedly connected to the driving screw. The driving screw is passed through the control panel and is threadedly connected to the control panel.

7. The plate heat exchanger according to claim 1, characterized in that: The frame is slidably connected to a third support rod for supporting the bottoms of multiple heat exchange plates. A support cylinder is fixedly installed on the third support rod. The support cylinder body is fixed on the frame and is used to drive the third support rod to slide in the vertical direction.

8. The plate heat exchanger according to claim 1, characterized in that: The frame is provided with a toggle assembly for toggling the heat exchange plates that are not spread out on the first support rod. The toggle assembly includes a toggle plate and a toggle cylinder sleeved on the first support rod. One end of the toggle cylinder is fixed to the toggle plate, and the other end is fixed to the frame.

9. The plate heat exchanger according to claim 1, characterized in that: The second support rod is provided with a limiting rod for limiting the position of the shaken heat exchange plate, and the limiting rod is arranged at an angle to the first support rod.

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