Plate heat exchanger

Abstract

The invention relates to the technical field of plate type heat exchange equipment, in particular to a plate type heat exchanger which comprises a rack, a plurality of heat exchange plates arranged on the rack, a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are arranged on the rack, and a supporting assembly used for supporting the heat exchange plates is arranged on the rack. The supporting assembly comprises a first supporting shaft arranged on the rack, a first supporting rod fixed to the first supporting shaft and a second supporting rod arranged on the first supporting rod, the axis of the first supporting shaft is horizontally arranged, and the first supporting rod rotates around the first supporting shaft in the direction close to or away from the ground; a connecting assembly used for being connected with the second supporting rod is connected to the rack in a sliding mode. The heat exchange plate has the effect of conveniently cleaning scale on the heat exchange plate.

Description

Technical Field

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

[0002] A plate heat exchanger, as an important device in the modern industrial heat exchange field, is composed of a frame body, support rods fixed on the frame body, and a plurality of metal plate sheets penetrated through the support rods. At the same time, a pressing plate for pressing the plurality of metal plate sheets is slidably connected to the frame body, and the pressing plate and the frame body are connected by a plurality of bolts; the superposition of the plurality of metal plate sheets forms a heat exchange channel, and the corrugation design on these plates enhances the turbulence effect of the fluid, realizing efficient heat exchange. Inside the plate heat exchanger, when hot water and cold water pass through the plate sheets, the dissolved solids in the water will deposit and crystallize on the surface of the plate sheets to form scale. The presence of scale will increase the thermal resistance of the plate sheets, reduce the 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 plate sheets, increasing the thermal resistance, and reducing the heat transfer efficiency. Therefore, the plate sheets need to be cleaned regularly.

[0003] For example, the Chinese patent document with the publication number CN118391944B discloses a plate heat exchanger, including: a first end plate and a second end plate, which are relatively spaced apart in a first direction; a heat exchange structure arranged between the first end plate and the second end plate, and the heat exchange structure includes: a plurality of heat exchange plate groups, the plurality of heat exchange plate groups are spaced apart 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 arranged between any two adjacent heat exchange plate groups to seal the first heat exchange cavity by using the first sealing structure; each heat exchange plate group includes: 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, and a second sealing structure is arranged between the first heat exchange plate and the second heat exchange plate to seal the second heat exchange cavity by using 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, and the first interval is greater than the second interval. Such a setting can make the width of the first heat exchange cavity in the first direction larger, so as to avoid the accumulation of impurities in the liquid medium between the first heat exchange plate and the second heat exchange plate, and further avoid blockage in the first heat exchange cavity.

[0004] In the above related art, due to the increase of 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 plates, and the heat exchange plates need to be regularly removed for scale cleaning. During the cleaning process, first, the staff needs to pull the pressing plate to move in the reverse direction. After the pressing plate moves a certain distance, then pull the heat exchange plate close to the pressing plate 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 gap is formed between adjacent heat exchange plates. Since there are multiple heat exchange plates, the staff needs to move the heat exchange plates in the reverse direction multiple times. During the process of moving the heat exchange plates in the reverse direction, the staff also needs to knock on each heat exchange plate, resulting in a decrease in the scale cleaning speed. In addition, it will also increase the intensity of the staff. Summary of the Invention

[0005] This application provides a plate heat exchanger, aiming to solve the problem of the decrease in the scale cleaning speed on the heat exchange plates in the related art.

[0006] The plate heat exchanger provided by this application adopts the following technical solution: A plate heat exchanger includes a frame, a plurality of heat exchange plates arranged on the frame, a water inlet pipe and a water outlet pipe arranged on the frame. A support assembly for supporting the plurality of heat exchange plates is arranged on the frame. The support assembly includes a first support shaft rotatably connected to the frame, a first support rod fixed on the first support shaft, and a second support rod arranged on the first support rod. The axis of the first support shaft is horizontally arranged. The first support rod rotates around the first support shaft in a direction close to or away from the ground. A connection assembly for connecting with the second support rod is slidably connected to the frame. A driving member for driving the connection assembly to move up and down is arranged on the frame. During the process of the driving member driving the connection assembly to move up and down, the plurality of heat exchange plates on the first support rod are shaken.

[0007] By adopting the above technical solution, when the scale on the heat exchange plates needs to be cleaned, remove the pressing plate on the frame, and then the driving member drives the connection assembly to move up and down. During the process of the connection assembly moving up and down, it will drive the first support rod and the second support rod to swing around the axis of the first support shaft. When the swing frequency of the first support rod is increased, the plurality of heat exchange plates sleeved on the first support rod will shake. During the shaking process, the plurality of heat exchange plates in contact with each other will be shaken apart, and at the same time, a part of the scale on the heat exchange plates can be shaken off during the shaking process, thereby realizing the 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 connection assembly to move downward. At this time, the first support rod is inclined downward. Since the plurality of heat exchange plates are shaken apart, the distance between adjacent heat exchange plates will become larger, which is convenient for the subsequent staff to clean the scale that has not fallen off on the heat exchange plates.

[0008] Optionally, a pushing component is arranged on the frame for pushing the heat exchange plate that has been shaken out to rotate to an inclined state. The pushing component includes a mounting frame slidably connected to the frame, a pushing steel cable fixed to the mounting frame, and a pushing cylinder fixed to the frame. The pushing cylinder pushes the mounting frame to slide along the axis direction of the first support shaft. A control component is arranged on the mounting frame for disengaging the pushing steel cable from the heat exchange plate in an inclined state.

[0009] By adopting the above technical solution, after the heat exchange plate is shaken out, the first support rod is rotated to a vertical state, and then the pushing cylinder pushes the mounting frame and the pushing steel cable arranged on the mounting frame to move. The pushing steel cable pushes the scattered heat exchange plate to rotate to an inclined state. Then, the control component adjusts the position of the pushing steel cable to disengage the pushing steel cable from the side of the inclined heat exchange plate. Then, the inclined heat exchange plate automatically rotates to a vertical state under the action of gravity. During the process of rotating to the vertical state, the rotating heat exchange plate will vibrate, and at this time, it is convenient to further clean the scale on the heat exchange plate.

[0010] Optionally, the control component includes a control plate slidably connected to the mounting frame, a first control shaft rotatably connected to the control plate, and a second control shaft. The first control shaft is arranged above the second control shaft and on the side of the second control shaft close to the water inlet and outlet pipe of the pressing plate. The pushing steel cable abuts against the first control shaft and the second control shaft. The first control shaft and the second control shaft form a first horizontal part, a vertical part, and a second horizontal part for the pushing steel cable, and the first horizontal part is arranged above the second horizontal part and is used to abut against the side of the inclined heat exchange plate. A driving component is arranged on the mounting frame for driving the control plate to move towards or away from the water inlet pipe.

[0011] By adopting the above technical solution, when the pushing cylinder pushes the mounting frame and the pushing steel cable arranged on the mounting frame to move along the axis direction of the first support shaft, the control steel cable pushes the shaken-out heat exchange plate to rotate to an inclined state. The first horizontal part abuts against the sides of all heat exchange plates. Then, the driving component drives the first control shaft and the second control shaft to move towards the water inlet pipe. At this time, the first horizontal part becomes shorter and the second horizontal part becomes longer. The heat exchange plate corresponding to the second horizontal part has no limit. At this time, the inclined heat exchange plate corresponding to the second horizontal part rotates to a vertical state under the action of gravity. During the process of rotating to the vertical state, the heat exchange plate will vibrate to a certain extent, better enabling the scale to fall off. In addition, the heat exchange plate rotated to the vertical state is not blocked by other heat exchange plates, which is convenient for the staff to clean the heat exchange plate rotated to the vertical state.

[0012] Optionally, limiting grooves for limiting the position of the pushing steel cable are formed on the first control shaft and the second control shaft.

[0013] By adopting the above technical solution, under the action of the limit groove, the first control shaft and the second control shaft can prevent the driving steel rope from detaching during the moving process, and thus can be more stable during the moving process.

[0014] Optionally, the connecting component 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 installed on the connecting frame. One end of the second support rod away from the first support rod is rotatably connected to the connecting shaft, and the axis of the connecting shaft is perpendicular to the axis of the second support shaft. A support groove for accommodating the second support rod is formed on the first support rod, and a fixing component for fixing the position of the first support shaft is arranged on the frame.

[0015] By adopting the above technical solution, during the process of driving the connecting plate to move up and down by the driving member, the second support rod rotates around the second support shaft. When it is necessary to install and disassemble the heat exchange plate, the second support rod is rotated out of the support groove, and the fixing component fixes the position of the first support rod, so that the position of the first support rod is more stable, and at the same time, it is also convenient to install and disassemble the heat exchange plate.

[0016] Optionally, the fixing component includes a sliding rod slidably connected to the frame, a first fixing block and a second fixing block fixed on the sliding rod. A first fixing groove for inserting the first fixing block is formed on the first support shaft, a second fixing groove for inserting the second fixing block is formed on the frame, and the cross section of the first fixing groove is smaller than that of the second fixing groove.

[0017] By adopting the above technical solution, when the first fixing block is in the first fixing groove and the second fixing block is in the second fixing groove, the first support shaft is fixed on the frame. 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 it is necessary to rotate the first support rod, the sliding rod is pushed to move the first fixing block into the second fixing groove, and the second fixing block disengages from the second fixing groove. Then, the first support shaft is unlocked, and the driving member can drive the first support rod to swing up and down.

[0018] Optionally, the driving component includes a driving screw rotatably connected to the mounting frame and a driving motor fixed on the mounting frame. The output shaft of the driving motor is fixedly connected to the driving screw, and the driving screw passes through the control board and is threadedly connected to the control board.

[0019] By adopting the above technical solution, when it is necessary to rotate the inclined heat exchange plate to the vertical state, the driving motor drives the driving screw to rotate, and then the driving screw drives the control board to slide on the mounting frame, and then it is convenient to adjust the length of the second horizontal part, so that the inclined heat exchange plate can rotate to the vertical state under the action of gravity.

[0020] Optionally, a third support rod for supporting a plurality of heat exchange plates is slidably connected to the frame, a support cylinder is fixedly mounted on the third support rod, a cylinder body of the support cylinder is fixed on the frame, and is used to drive the third support rod to slide in a vertical direction.

[0021] 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.

[0022] Optionally, the frame is provided with a toggling assembly for toggling the heat exchange plates that are not spread out on the first support rod, the toggling assembly includes a toggling plate and a toggling cylinder mounted on the first support rod, one end of the toggling cylinder is fixed to the toggling plate, and the other end is fixed to the frame.

[0023] By adopting the above technical solution, when the heat exchange plate needs to be shaken, the shifting cylinder first pushes the shifting plate to move, and the shifting plate pushes multiple heat exchange plates to move simultaneously, thereby preventing the heat exchange plate from hitting the frame during the shaking process.

[0024] Optionally, a limiting rod for limiting the position of the shaken-open heat exchange plate is provided on the second support rod, and the limiting rod and the first support rod are arranged at an angle.

[0025] By adopting the above technical solution, under the action of the limiting rod, it can be prevented that the heat exchange plate moves to the second supporting rod when the heat exchange plate is shaken.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The driving member drives the connecting assembly to move up and down. During the movement of the connecting assembly up and down, the first support rod and the second support rod will be driven to swing up and down 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 sleeved on the first support rod will vibrate. During the shaking process, the multiple heat exchange plates abutting against each other will be shaken apart. At the same time, part of the scale on the heat exchange plate can be shaken off during the shaking process, thereby realizing automatic cleaning of the scale on the heat exchange plate.

[0027] 2. The pushing steel rope pushes 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 against 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 the scale on the heat exchange plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the heat exchanger of an embodiment of the present application.

[0029] Figure 2 This is a front view of the heat exchanger according to an embodiment of the present application.

[0030] Figure 3 It is a schematic diagram of the structure of the heat exchange plate in an embodiment of the present application rotated to a tilted state.

[0031] Figure 4 It is a schematic diagram of the connection component structure of an embodiment of the present application.

[0032] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0033] 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.

[0034] 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 part; 222, vertical part; 223, second horizontal part; 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. Steering assembly; 81. Steering plate; 82. Steering cylinder. DETAILED DESCRIPTION

[0035] The following combination Figures 1 - 6 This application is described in further detail.

[0036] The present application embodiment discloses a plate heat exchanger. Figure 1, a plate heat exchanger includes a frame 01, a water inlet pipe and a water outlet pipe arranged on the frame 01. A support assembly 1 for supporting a plurality of heat exchange plates is arranged on the frame 01. At the same time, a driving member 04 for shaking the heat exchange plates on the support assembly 1 is arranged on the frame 01, and then the heat exchange plates are dispersed. A pushing assembly 2 for pushing the dispersed heat exchange plates to rotate to an inclined state is arranged on the frame 01. A control assembly 4 for no longer limiting the inclined heat exchange plates is arranged on the pushing assembly 2. 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.

[0037] Referring to 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 arranged on the first support rod 12. A connecting assembly 3 for connecting to the second support rod 13 is arranged 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 in the vertical direction. During the up and down movement of the connecting assembly 3, it will drive the first support rod 12 and the second support rod 13 to swing up and down around the axis of the first support shaft 11. During the up and down swing of the first support rod 12, the second support rod 13 will also rotate on the connecting assembly 3. At the same time, the second support rod 13 slides on the first support rod 12. A pressing plate 05 is slidably connected to the first support rod 12, and a pressing bolt is arranged on the pressing plate 05. A plurality of heat dissipation fins are pressed on the frame 01 through the pressing bolt.

[0038] Referring to 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 installed on the connecting frame 33. One end of the second support rod 13 far from the first support rod 12 is rotatably connected to the connecting shaft 34. 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 the horizontal plane and can also rotate around the second support shaft 32 in the vertical direction.

[0039] Referring to Figures 3 to 5, a fixing component 5 for fixing the position of the first support shaft 11 is arranged 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 formed in the first support rod 12, and the support groove 6 is used to accommodate the second support rod 13. The second support rod 13 can support the first support rod 12, 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 disengages from 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 through the first support shaft 11. When installing or disassembling the heat exchange plate on the first support rod 12, the first support rod 12 needs to be horizontally arranged, the fixing component 5 fixes the position of the first support shaft 11, and the second support rod 13 disengages from the support groove 6.

[0040] In this embodiment, the driving member 04 is set as a driving cylinder. The cylinder body of the driving cylinder is fixed on the frame 01, and the piston rod is fixed on 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 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 vibrate. During the vibration process, the heat exchange plate can be driven to vibrate, so that the distance between adjacent heat exchange plates becomes larger, 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 heat exchange plate to slide on the first support rod 12, the first support rod 12 is set as a round rod, and the diameter of the mounting hole through which the heat exchange plate is inserted on the first support rod 12 is larger than the cross section of the first support rod 12.

[0041] Refer to Figures 1 to 5 , a limiting rod 61 is arranged on the second support rod 13. The limiting rod 61 and the first support rod 12 are arranged at an angle. The limiting rod 61 is used to limit the position of the vibrating heat exchange plate. When vibrating the heat exchange plate, the heat exchange plate can slide along the length direction of the first support rod 12 and finally abut against the limiting rod 61.

[0042] Refer to Figures 1 to 5, the fixing component 5 includes a sliding rod 51 slidably connected to the first support shaft 11, a first fixing block 52 and a second fixing block 53 fixed on the sliding rod 51. Both ends of the sliding rod 51 away from the first fixing block 52 and the second fixing block 53 are provided 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 inserting the first fixing block 52 is formed on the first support shaft 11, and a second fixing groove 55 for inserting the second fixing block 53 is formed on the frame 01. The cross-sections of the first fixing groove 54 and the first fixing block 52 are the same, and the cross-sections of the second fixing groove 55 and the second fixing block 53 are the same. When the first fixing block 52 is in the first fixing groove 54 and the second fixing block 53 is in the second fixing groove 55, the first support shaft 11 can be fixed on the frame 01. Then, when the first support rod 12 needs to rotate, the sliding rod 51 is pushed, so that the sliding rod 51 drives the first fixing block 52 and the second fixing block 53 to move. Then, the first fixing block 52 is moved into the second fixing groove 55, and the second fixing block 53 extends out of the second fixing 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 by the driving cylinder to swing up and down.

[0043] Referring to Figures 2 to 6 , the pushing component 2 includes a mounting frame 21 slidably connected to the frame 01, a pushing steel cable 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 cable 22, so that the number of heat exchange plates abutted against the pushing steel cable 22 gradually decreases.

[0044] During the movement of the mounting frame 21, the pushing steel cable 22 will be driven to move. Then, the pushing steel cable 22 abuts against the side surface of the heat exchange plate. During the continuous horizontal movement of the mounting frame 21, the pushing steel cable 22 will push the scattered heat exchange plates to rotate around the first support rod 12. Finally, the scattered heat exchange plates are rotated to an inclined state. At this time, the control component 4 adjusts the position of the pushing steel cable 22, so that the pushing steel cable 22 gradually stops abutting and limiting the heat exchange plates. At this time, the heat exchange plates that are not abutted against the pushing steel cable 22 will rotate to the vertical state under the action of gravity. During the rotation process, vibrations will occur, and then the scale on the heat exchange plates will be further cleaned.

[0045] Referring to Figures 2 to 6, the control component 4 includes a control board 41 slidably connected to the mounting frame 21, a first control shaft 42 rotatably connected to the control board 41, and a second control shaft 43. The pushing steel cable 22 is wound around the first control shaft 42 and the second control shaft 43 at the same time. 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 cable 22 forms a first horizontal portion 221, a vertical portion 222, and a second horizontal portion 223 in sequence. The height of the first horizontal portion 221 is higher than that of 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, limiting grooves 64 for limiting the position of the pushing steel cable 22 are formed on the first control shaft 42 and the second control shaft 43. Through the arrangement of the limiting grooves 64, the situation that the pushing steel cable 22 disengages from the first control shaft 42 and the second control shaft 43 can be reduced during the movement of the control board 41.

[0046] In the initial state, the length of the first horizontal portion 221 is greater than that of the second horizontal portion 223, and all the inclined heat exchange plates are abutted against the first horizontal portion 221. During the process of the control board 41 moving towards the direction close to the water outlet pipe, the length of the first horizontal portion 221 will become shorter. At this time, the number of heat exchange plates abutting against the first horizontal portion 221 will become smaller, and at the same time, the length of the second horizontal portion 223 will become longer. Then, during the movement, the inclined heat exchange plates will be rotated to the vertical state in sequence, thereby achieving the purpose of facilitating the cleaning of the scale on the heat exchange plates.

[0047] Refer to Figures 2 to 6 , a driving component 7 for driving the control board 41 to reciprocate along the length direction of the first support rod 12 is arranged on the mounting frame 21. The driving component 7 includes a driving screw rod 71 rotatably connected to the mounting frame 21 and a driving motor 72 fixed on the mounting frame 21. The output shaft of the driving motor 72 is fixed on the driving screw rod 71. The driving screw rod 71 penetrates through the control board 41 and is threadedly connected to the control board 41. By rotating the driving motor 72, the driving screw rod 71 is driven 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.

[0048] Refer to 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 to move away from the water inlet pipe, and then the heat exchange plates at the edge can be prevented from hitting the rack 01 during the swinging process. The toggle assembly 8 includes a toggle plate 81 and a toggle cylinder 82 sleeved on the first support rod 12. One end of the toggle cylinder 82 is fixed on the toggle plate 81, and the other end is fixed on 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 the heat exchange plate needs to be shaken, the toggle plate 81 is first pushed to move by the toggle cylinder 82, and the heat exchange plate is pushed to move by the toggle plate 81. 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 the initial position, and finally the heat exchange plate is shaken by the up and down swinging of the first support rod 12.

[0049] Reference Figures 2 to 6 A third support rod 62 is slidably connected to the frame 01, and the third support rod 62 is arranged under the heat exchange plate to support the heat exchange plate. A support cylinder 63 is arranged on the frame 01, and 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 giving 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.

[0050] The implementation principle of a plate heat exchanger in an embodiment of this application is as follows: When it is necessary to remove the heat exchange plates to clean the scale, first, the toggle plate 81 is driven to move by the toggle cylinder 82. The toggle plate 81 pushes the heat exchange plate to move a certain distance, and then the toggle plate 81 returns in the reverse direction. 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. Moreover, the second support rod 13 slides on the first support rod 12. During the up-and-down swing of the first support rod 12, the heat exchange plates will vibrate, so as to shake open the heat exchange plates that are in contact with each other. During the shaking process, the scale attached to the heat exchange plates will fall off. Then, by moving the mounting bracket 21, the steel rope 22 is pushed to rotate the vertical heat exchange plate to an inclined state. During the process of the control board 41 moving towards the water inlet pipe, the number of heat exchange plates in contact with the first horizontal part 221 decreases. Then, the heat exchange plates that are not in contact with the first horizontal part 221 will rotate to the vertical state under the action of gravity. During the rotation process, a certain vibration effect can be achieved on the heat exchange plates to further clean the remaining scale on the heat exchange plates. In addition, by adjusting the moving speed of the control board 41, the speed of the heat exchange plate rotating to the vertical state can be slowed down. Then, during the falling process, only one worker can use a high-pressure water gun to achieve the purpose of cleaning the remaining scale on the heat exchange plates. Thus, on the one hand, the disassembly efficiency of the heat exchange plates is improved, and on the other hand, the labor intensity of the workers is reduced. In addition, in order to facilitate the vibration 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 pressing plate 05 is removed from the second support rod 13.

[0051] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A plate heat exchanger, comprising a frame (01), a plurality of heat exchange plates arranged on the frame (01), a water inlet pipe and a water outlet pipe arranged on the frame (01), characterized in that: A support assembly (1) for supporting a plurality of heat exchange plates is provided on the frame (01). 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). The axis of the first support shaft (11) is horizontally arranged. The first support rod (12) rotates around the first support shaft (11) in a direction close to or away from the ground. A connection assembly (3) for connecting with the second support rod (13) is slidably connected to the frame (01). A driving member (04) for driving the connection assembly (3) to move up and down is provided on the frame (01). During the process of the driving member (04) driving the connection assembly (3) to move up and down, the plurality of heat exchange plates on the first support rod (12) are shaken.

2. The plate heat exchanger according to claim 1, wherein: A pushing assembly (2) for pushing the shaken heat exchange plates to rotate to an inclined state is provided on the frame (01). The pushing assembly (2) includes a mounting frame (21) slidably connected to the frame (01), a pushing steel cable (22) fixed to the mounting frame (21), and a pushing cylinder (23) fixed to the frame (01). The pushing cylinder (23) pushes the mounting frame (21) to slide along the axis direction of the first support shaft (11). A control assembly (4) for separating the pushing steel cable (22) from the heat exchange plates in an inclined state is provided on the mounting frame (21).

3. The plate heat exchanger according to claim 2, wherein: The control assembly (4) includes a control plate (41) slidably connected to the mounting frame (21), a first control shaft (42) and a second control shaft (43) rotatably connected to the control plate (41). The first control shaft (42) is arranged above the second control shaft (43) and on the side of the second control shaft (43) close to the water inlet pipe of the pressing plate (05). The pushing steel cable (22) is wound around the first control shaft (42) and the second control shaft (43). The first control shaft (42) and the second control shaft (43) form a first horizontal portion (221), a vertical portion (222) and a second horizontal portion (223) of the pushing steel cable (22), and the first horizontal portion (221) is arranged above the second horizontal portion (223) for abutting against the side surface of the inclined heat exchange plate. A driving assembly (7) for driving the control plate (41) to move towards or away from the water inlet pipe direction is provided on the mounting frame (21).

4. A plate heat exchanger according to claim 3, characterized in that: Limiting grooves (64) for limiting the position of the pushing steel cable (22) are formed on the first control shaft (42) and the second control shaft (43).

5. A plate heat exchanger according to claim 2, characterized in that: The connecting assembly (3) comprises 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); one end of the second support rod (13) away from the first support rod (12) is rotatably connected to the connecting shaft (34), and the axis of the connecting shaft (34) is arranged perpendicular to the axis of the second support shaft (32); a supporting groove (6) for accommodating the second support rod (13) is provided on the first support rod (12), and a fixing assembly (5) for fixing the position of the first support shaft (11) is arranged on the frame (01).

6. A plate heat exchanger according to claim 5, characterized in that: The fixing assembly (5) comprises a sliding rod (51) slidably connected to the frame (01), and a first fixing block (52) and a second fixing block (53) fixed to the sliding rod (51); the first supporting shaft (11) is provided with a first fixing groove (54) for the first fixing block (52) to be inserted into; the frame (01) is provided with a second fixing groove (55) for the second fixing block (53) to be inserted into; and the cross section of the first fixing groove (54) is smaller than the cross section of the second fixing groove (55).

7. A plate heat exchanger according to claim 3, characterized in that: The driving assembly (7) comprises a driving screw (71) rotatably connected to the mounting frame (21) and a driving motor (72) fixed to the mounting frame (21); an output shaft of the driving motor (72) is fixedly connected to the driving screw (71); and the driving screw (71) is passed through the control board (41) and is threadedly connected to the control board (41).

8. A plate heat exchanger according to claim 1, wherein: A third support rod (62) for supporting the bottoms of a plurality of heat exchange plates is slidably connected to the frame (01); a support cylinder (63) is fixedly mounted on the third support rod (62); a cylinder body of the support cylinder (63) is fixed to the frame (01) and is used to drive the third support rod (62) to slide in a vertical direction.

9. A plate heat exchanger according to claim 1, wherein: The frame (01) is provided with a toggle assembly (8) for toggling the heat exchange plates that are not spread out on the first support rod (12); the toggle assembly (8) comprises a toggle plate (81) sleeved on the first support rod (12) and a toggle cylinder (82); one end of the toggle cylinder (82) is fixed to the toggle plate (81), and the other end is fixed to the frame (01).

10. A plate heat exchanger according to claim 1, characterized in that: The second support rod (13) is provided with a limiting rod (61) for limiting the position of the shaken-open heat exchange plate, and the limiting rod (61) and the first support rod (12) are arranged at an angle.

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