A cleaning device and a cleaning method for cleaning a heat exchanger

Abstract

The present invention discloses a cleaning device and a cleaning method for cleaning a heat exchanger, belonging to the technical field of cleaning devices, wherein the cleaning device for cleaning a heat exchanger comprises a conveyor belt and a cleaning pool arranged at one end of the conveyor belt, a plurality of bases are fixedly installed on the conveyor belt, a connecting block is assembled with an end of the base away from the conveyor belt through a clamping assembly, and an isolation block is arranged at an end of the connecting block away from the base; the conveyor belt drives the plate to move, and the isolation block and the connecting block deflected to a horizontal state can be distributed to the two end positions of the plate, so that in the vertical direction, the isolation block and the connecting block can be located between two adjacent plates, thereby avoiding contact between the two plates, which is beneficial to cleaning the plate.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning devices, and in particular to a cleaning device and a cleaning method for cleaning a heat exchanger. Background Art

[0002] The plate transducer is a high-efficiency transducer made of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between the various plates, and heat is exchanged through the plates. It has the characteristics of high energy conversion efficiency, small heat loss, and wide application.

[0003] Chinese patent CN220901253U discloses an ultrasonic cleaning device for a plate heat exchanger that does not require removal of plates. The operation of the second electric telescopic rod inside the second connecting rod will cause the ultrasonic guide plate connected to one end of the second adjusting rod to move toward the position of the plate transducer to achieve subsequent ultrasonic cleaning work. At the same time, the operation of the first electric telescopic rod will cause the first adjusting rod to move outside the first connecting rod, thereby enabling the plate transducer body placed on the placement plate to be taken out of the cleaning tank, thereby achieving the purpose of quickly replacing the plate transducer body.

[0004] The above-mentioned device places the entire heat exchanger in a cleaning tank for cleaning. On the one hand, it is inconvenient to enter and exit the cleaning tank, which makes the transportation process more difficult. On the other hand, the cleaning effect is affected due to the close interval between two adjacent metal sheets. If the metal sheets are removed for cleaning separately, it is not convenient to stack multiple metal sheets in the cleaning tank for cleaning through this device. In summary, the above-mentioned device still has room for improvement.

[0005] Therefore, it is necessary to provide a cleaning device and a cleaning method for cleaning a heat exchanger to solve the above technical problems. Summary of the invention

[0006] The object of the present invention is to provide a cleaning device and a cleaning method for cleaning a heat exchanger, so as to solve the problem that the existing device proposed in the above background technology places the entire heat exchanger in a cleaning tank for cleaning, which is not convenient for entering and exiting the cleaning tank, resulting in greater difficulty in the transportation process. On the other hand, the cleaning effect is also affected due to the close spacing between adjacent metal sheets.

[0007] Based on the above ideas, the present invention provides the following technical solutions: a cleaning device for cleaning a heat exchanger, comprising a conveyor belt for placing plates and a cleaning pool arranged at one end of the conveyor belt, a plurality of bases are fixedly installed on the conveyor belt, a connecting block is assembled at one end of the base away from the conveyor belt through a clamping assembly, and an isolation block is arranged at one end of the connecting block away from the base, side plates are arranged on both sides of the top of the conveyor belt, the connecting block and the isolation block are slidably matched with the side plates, and an L-shaped support plate is slidably arranged in the cleaning pool;

[0008] When the base drives the connecting block to move to one end of the conveyor belt close to the cleaning tank, the clamping assembly on the connecting block disengages from the base, and when one of the plates is pushed to the top of the support plate, the other plate can push the isolation block and the connecting block at one end of the previous plate to deflect to a horizontal state during the movement, and drive the isolation block and the connecting block in the horizontal state to be distributed to the two ends of the plate;

[0009] The clamping assembly includes a positioning block fixed to the bottom surface of the connecting block, a strip groove slidably matched with the positioning block is provided on the base, clamping blocks are elastically installed on both sides of the positioning block, and a clamping groove matched with the clamping block is provided on the inner wall of the strip groove. A magnetic block is slidably assembled on the side of the connecting block close to the side plate, a pull rope is fixedly arranged between the magnetic block and the clamping block, and a magnetic strip is fixedly embedded on the inner side surface of the side plate, and the side of the magnetic strip opposite to the magnetic block has different magnetic poles.

[0010] As a further solution of the present invention: a plug-in block is fixedly provided on the end face of one end of the isolation block close to the base, a slot matching the plug-in block is provided on the top end face of the connecting block, and a limiting slot is provided on the inner wall of the slot, and limit blocks matching the limit slots are elastically provided on both sides of the plug-in block, and the end of the limit block away from the plug-in block is an arc surface structure.

[0011] As a further solution of the present invention: a baffle is fixedly installed on a side of the isolation block away from the cleaning tank, and a clamping strip is provided on a side of the connection block close to the cleaning tank.

[0012] As a further solution of the present invention: two horizontal guide grooves are provided on the inner side surface of the side plate, a guide block slidingly matched with the guide groove is elastically provided on a side of the isolation block close to the side plate, both sides of the guide block close to the side plate are arranged with inclined surfaces, a slider is provided on a side of the connecting block close to the side plate, the slider slidingly matches with the guide groove, a lead-out groove is provided on the end of the side plate located at the guide groove away from the conveyor belt, and the lead-out groove is connected with the two guide grooves.

[0013] As a further solution of the present invention: a guide strip is fixedly mounted on one end of the side plate away from the cleaning tank.

[0014] As a further solution of the present invention: a cross bar is fixedly installed between the connecting blocks on both sides of the conveyor belt.

[0015] As a further solution of the present invention: the inner side surface of the vertical section of the support plate is recessed inward to form a recessed portion.

[0016] As a further solution of the present invention: a lifting unit is arranged below the cleaning tank, and a telescopic end of the lifting unit passes through the cleaning tank and is fixedly connected to the support plate.

[0017] A method for cleaning a heat exchanger using the cleaning device described above comprises the following steps: placing a plate removed from the heat exchanger on a conveyor belt and located on a side of a connecting block close to a cleaning tank, and driving the plate to the top of the cleaning tank via the conveyor belt; utilizing the cooperation of a magnetic block and a magnetic strip to disconnect the connecting block from a base, so that the connecting block and an isolating block at one end of the plate can be pushed to a horizontal state by the next plate that enters onto a support plate; and continuing to drive the plate to move via the conveyor belt and causing the connecting block and the isolating block to be distributed to both ends of the plate.

[0018] Compared with the prior art, the beneficial effect of the present invention is that this device can completely push the plate to the top of the cleaning pool through the connecting blocks and isolation blocks, and when one of the plates is pushed to the top of the support plate, the other plate can drive the isolation block and connecting block at one end of the previous plate to deflect during the movement, so that the isolation block and the connecting block are deflected to a horizontal state. Afterwards, when the conveyor belt continues to drive the plate to move, the isolation blocks and connecting blocks deflected to a horizontal state will be distributed at the two end positions of the plate, so that in the vertical direction, the isolation blocks and connecting blocks can be located between two adjacent plates, thereby avoiding contact between the two plates, which is beneficial to the cleaning of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

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

[0021] Figure 2 It is a schematic diagram of the crossbar structure of the present invention;

[0022] Figure 3 It is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 4 It is the distribution diagram of the connection block and the isolation block of the present invention;

[0024] Figure 5 The present invention Figure 3 A schematic diagram of the enlarged structure at point A;

[0025] Figure 6 is a schematic diagram of a plurality of plates of the present invention stacked on a support plate;

[0026] Figure 7 It is a schematic diagram of the structure of the baffle bar and the clamping bar of the present invention;

[0027] Figure 8 It is a schematic diagram of the side plate structure of the present invention;

[0028] Fig. 9It is a schematic diagram of the connection structure of the connection block and the isolation block of the present invention;

[0029] Fig.10 The present invention Fig. 9 A schematic diagram of the enlarged structure at B;

[0030] Fig.11 It is a schematic diagram of the guide block structure of the present invention;

[0031] Fig.12 It is a schematic diagram of the plate of the present invention pushing the isolation block.

[0032] In the figure: 1. conveyor belt; 2. plate; 3. isolation block; 301. guide block; 3011. inclined plane; 302. baffle; 4. connecting block; 401. clamping strip; 402. slider; 5. side plate; 501. guide groove; 502. convex strip; 503. guide groove; 6. support plate; 601. recessed part; 7. cleaning tank; 8. guide strip; 9. cross bar; 10. base; 1001. clamping slot; 11. lifting unit; 12. magnetic strip; 13. plug-in block; 14. limit block; 15. magnetic block; 16. pull rope; 17. positioning block; 18. clamping block. DETAILED DESCRIPTION

[0033] like Figure 1-Figure 6 As shown, a cleaning device and a cleaning method for cleaning a heat exchanger include a conveyor belt 1, wherein the conveyor belt 1 is used to convey the plate 2 on the heat exchanger. A cleaning pool 7 is arranged at one end of the conveyor belt 1. The conveyor belt 1 can transport the plate 2 to the cleaning pool 7 for cleaning. In this solution, the dirt on the surface of the plate 2 is removed by ultrasonic cleaning. Since ultrasonic cleaning is a mature technical means, its structure and installation are not described in detail here.

[0034] In order to convey the plate 2 into the cleaning tank 7, a plurality of bases 10 are fixedly mounted on the conveyor belt 1. The bases 10 are evenly distributed along the length direction of the conveyor belt 1. The end of the base 10 away from the conveyor belt 1 is equipped with a connecting block 4 through a clamping assembly, and the end of the connecting block 4 away from the base 10 is equipped with an isolation block 3.

[0035] Furthermore, side panels 5 are provided on both sides of the top of the conveyor belt 1. The side panels 5 extend from one end of the conveyor belt 1 to the cleaning tank 7. When the side panels 5 are actually used, they can be fixedly connected to the cleaning tank 7. The connecting block 4 and the isolation block 3 are both slidably matched with the side panels 5.

[0036] Furthermore, an L-shaped support plate 6 is provided in the cleaning tank 7 , and the support plate 6 can move in the vertical direction relative to the cleaning tank 7 , and in an initial state, the top surface of the support plate 6 is flush with the top surface of the conveyor belt 1 .

[0037] When the conveyor belt 1 is in use, the plate 2 to be cleaned is placed on the conveyor belt 1, and the plate 2 is placed on the side of the connecting block 4 close to the cleaning pool 7. When the conveyor belt 1 rotates, the connecting block 4 and the isolation block 3 can be synchronously driven to move through the base 10, so that the plate 2 can be pushed toward the cleaning pool 7. When the base 10 drives the connecting block 4 to move to one end of the conveyor belt 1 close to the cleaning pool 7, the clamping assembly on the connecting block 4 disengages from the base 10, so that the plate 2 will be retained between the support plate 6 and the conveyor belt 1. As the conveyor belt 1 continues to rotate, the other plate 2 will be pushed to the end of the conveyor belt 1 close to the cleaning pool 7 and the retained plate 2 will be completely pushed onto the support plate 6 through the connecting block 4. At this time, the support plate 6 can be moved downward for a distance. During this process, the plate 2 and the connecting block 4 and isolation block 3 at one end of the plate 2 all move downward, so that the other plate 2 can be aligned with the isolation block 3. For details, refer to Fig.12 As shown, at this time, the connecting block 4 and the isolating block 3 are placed between the two plates 2. As the conveyor belt 1 continues to drive the plate 2 on its top to move, the plate 2 exerts a thrust on the isolating block 3, so that the isolating block 3 and the connecting block 4 can flip around the side edges of the plate 2 on the support plate 6 and finally be in a horizontal state, so that the connecting block 4 and the isolating block 3 are located between the upper and lower plates 2, which is beneficial to avoid contact between the two plates 2.

[0038] like Figure 2-Figure 10 As shown, the above-mentioned clamping assembly includes a positioning block 17, which is located on a side of the connecting block 4 close to the base 10 and is fixedly connected to the connecting block 4. The base 10 is provided with a strip groove that slidably cooperates with the positioning block 17, and both ends of the strip groove extend to the end surfaces of both ends of the base 10. Blocks 18 are elastically installed on both sides of the positioning block 17, and a clamping groove 1001 that cooperates with the clamping block 18 is provided on the inner wall of the strip groove. In the initial state, the clamping block 18 is located in the clamping groove 1001, so that the connecting block 4 and the base 10 are locked with each other, so that the conveyor belt 1 can drive the connecting block 4 to move and push the plate 2;

[0039] In order to release the cooperation between the base 10 and the connecting block 4, the present solution is provided with a magnetic block 15 slidably mounted on one side of the connecting block 4 close to the side plate 5, and a pull rope 16 is fixedly arranged between the magnetic block 15 and the clamping block 18, the pull rope 16 passes through the positioning block 17 and the connecting block 4 and slidably cooperates with them, and a magnetic strip 12 is fixedly embedded on the inner side surface of the side plate 5, and the side of the magnetic strip 12 opposite to the magnetic block 15 has different magnetic poles, and the magnetic strip 12 is located at one end of the conveyor belt 1 close to the cleaning tank 7;

[0040] Reference Fig. 9As shown, a plug-in block 13 is fixedly arranged on the end face of one end of the isolation block 3 close to the base 10, and a slot matching with the plug-in block 13 is provided on the top end face of the connection block 4, and a limiting slot is provided at the inner wall of the slot, and limiting blocks 14 matching with the limiting slot are elastically arranged on both sides of the plug-in block 13, and the end of the limiting block 14 away from the plug-in block 13 is an arc surface structure. In the initial state, the limiting block 14 is located in the limiting slot, and a part of the arc surface structure on the limiting block 14 is located outside the limiting slot. Through this structure, the connection block 4 can be separated from the isolation block 3;

[0041] Reference Figure 5-Figure 7 As shown, a baffle 302 is fixedly installed on the side of the isolation block 3 away from the cleaning tank 7, and the baffle 302 is located at the top position of the isolation block 3, and a clamping strip 401 is provided on the side of the connecting block 4 close to the cleaning tank 7. Specifically, the clamping strip 401 can be fixedly connected or elastically connected to the connecting block 4. When the conveyor belt 1 drives the plate 2 to move and pushes the connecting block 4 and the isolation block 3 to a horizontal state, as the conveyor belt 1 continues to drive the plate 2 to move, one end of the plate 2 will contact the baffle 302, thereby pushing the isolation block 3 to move on the plate 2 at the top of the support plate 6, and the connecting block 4 is retained on the support plate 6 by the clamping strip 401. One end of the plate 2 close to the conveyor belt 1, at this point, the connecting block 4 and the isolation block 3 are distributed to the positions on both sides of the plate 2, which is beneficial to support the plate 2 in the vertical direction. For details, please refer to Figure 6 shown.

[0042] Reference Figure 1-Figure 2 , Figure 8 As shown, two horizontal guide grooves 501 are provided on the inner side surface of the side plate 5, and the guide groove 501 extends to the end surface of the side plate 5 away from the cleaning tank 7. The side of the isolation block 3 close to the side plate 5 is elastically provided with a guide block 301 that slidably cooperates with the guide groove 501. Both sides of the end of the guide block 301 close to the side plate 5 are set with inclined surfaces 3011, and a slider 402 is provided on the side of the connecting block 4 close to the side plate 5. Similarly, the slider 402 also slidably cooperates with the guide groove 501. Specifically, the slider 402 can be fixedly connected to the connecting block 4 or elastically cooperate. In actual application, when the conveyor belt 1 drives the plate 2 to move between the two side plates 5, the slider 402 and the guide block 301 can enter the guide groove 501. Through this structure, after the base 10 is separated from the connecting plate, the connecting block 4 and the isolation block 3 can still slide stably relative to the side plate 5. Figure 8 A lead-out groove 503 is provided on the side plate 5 at one end of the guide groove 501 away from the conveyor belt 1. The lead-out groove 503 is connected to the two guide grooves 501, and the bottom end of the lead-out groove 503 extends to the bottom surface of the side plate 5. Through this structure, the connecting block 4 can be moved out of the side plate 5.

[0043] In actual use, the plate 2 removed from the heat exchanger is placed on the conveyor belt 1, and the plate 2 is located on the side of the connecting block 4 close to the cleaning tank 7. As the conveyor belt 1 rotates, the plate 2 can be sent to the side of the cleaning tank 7. Since the top surface of the support plate 6 is flush with the top surface of the conveyor belt 1 in the initial state, the plate 2 can slide onto the support plate 6. When the base 10 moves to the vicinity of one end of the conveyor belt 1 close to the cleaning tank 7, the magnetic block 15 on the connecting block 4 will be aligned with the magnetic strip 12 on the side plate 5, so that the pull rope 16 can be pulled by the suction between the two, and the pull rope 16 can It is possible to pull one end of the card block 18 out of the card slot 1001, so that the connection block 4 and the base 10 are out of the card connection relationship. At this time, the conveyor belt 1 will drive the base 10 to move alone. When one end of the plate 2 leaves the conveyor belt 1, the plate 2 will be retained on the support plate 6. As the conveyor belt 1 continues to rotate, the other plate 2 will move to the end of the conveyor belt 1 close to the cleaning tank 7. When this plate 2 contacts the connection block 4 at one end of the plate 2 retained on the support plate 6, it can push the plate 2 on the top of the support plate 6, so that the plate 2 on the support plate 6 can contact the vertical surface of the support plate 6. For details, please refer to Fig.12 As shown, at this time, the rotation of the conveyor belt 1 can be stopped and the support plate 6 can be driven to move downward for a distance, so that the isolation block 3 above the support plate 6 is aligned with the plate 2 on the conveyor belt 1 in the horizontal direction. During this process, the slider 402 will move out of the guide slot 503 and staggered with the side plate 5. After that, the conveyor belt 1 can be started again. When the conveyor belt 1 continues to drive the plate 2 on its top to move, the plate 2 will squeeze the isolation block 3 above the support plate 6, thereby prompting the connecting block 4 and the isolation block 3 to flip around the side edge of the plate 2 on the top of the support plate 6 and finally become a horizontal state. Since the guide block 301 is provided with an inclined surface 3011, the inclined surface 3011 on the guide block 301 can contact and squeeze the side edge of the guide slot 503 during the rotation of the isolation block 3, which is beneficial to The guide block 301 moves out of the guide slot 503. When the isolation block 3 is in a horizontal state, the stop bar 302 thereon will be aligned with the plate 2 on the conveyor belt 1. Since the limit block 14 is provided with an arc surface structure, when the thrust of the plate 2 on the stop bar 302 increases, the limit block 14 will be compressed into the plug-in block 13, so that the isolation block 3 and the connecting block 4 can be separated, so that when the conveyor belt 1 drives the plate 2 on its top to move, it can drive the isolation block 3 to move in the horizontal direction, thereby driving the isolation block 3 to the end of the plate 2 on the support plate 6 away from the conveyor belt 1, and when the connecting block 4 is in a horizontal state, the card strip 401 thereon will be attached to one side of the plate 2 on the support plate 6. At this point, the isolation block 3 and the connecting block 4 originally connected are located at the two end positions of the plate 2. For details, please refer to Figure 6As shown, at this time, the plate 2 can be separated in the vertical direction by the isolation block 3 and the connecting block 4 in the horizontal state, so as to avoid contact between two adjacent plates 2. Similarly, when the connecting block 4 at one end of the second plate 2 moves to the end of the conveyor belt 1 close to the cleaning tank 7, the connecting block 4 will also be separated from the base 10 on the conveyor belt 1, and the plate 2 will be pushed to the top of the support plate 6 by the third plate 2 on the conveyor belt 1 for storage, refer to Figure 6 As shown, at this time, the connecting block 4 at one end of the second plate 2 is located above the connecting block 4 in the horizontal state. When the support plate 6 drops a certain distance again, the connecting block 4 and the isolation block 3 at one end of the second plate 2 will move downward synchronously, so that the plate 2 on the conveyor belt 1 can be aligned with the isolation block 3. Similarly, when the plate 2 pushes the isolation block 3, it can drive it to deflect to a horizontal state, so that the isolation block 3 and the connecting block 4 at one end of the second plate 2 are distributed to the two end positions of the plate 2. Repeat the above operation to stack multiple plates 2 on the support plate 6, and the isolation block 3 and the connecting block 4 will be placed between two adjacent plates 2 to avoid contact between the two adjacent plates 2, which is beneficial to the cleaning of the plate 2.

[0044] To sum up, this device can completely push the plate 2 to the top of the cleaning pool 7 through the connecting block 4 and the isolating block 3, and when one of the plates 2 is pushed to the top of the support plate 6, the other plate 2 can drive the isolating block 3 and the connecting block 4 at one end of the previous plate 2 to deflect during the movement, so that the isolating block 3 and the connecting block 4 are deflected to a horizontal state. Afterwards, when the conveyor belt 1 continues to drive the plate 2 to move, the isolating block 3 and the connecting block 4 deflected to a horizontal state will be distributed to the two end positions of the plate 2, so that in the vertical direction, the isolating block 3 and the connecting block 4 can be located between two adjacent plates 2, thereby avoiding contact between the two plates 2, which is beneficial to the cleaning of the plate 2.

[0045] like Figure 1 As shown, rollers are provided at both ends of the conveyor belt 1, and vertical plates are provided on both sides of the conveyor belt 1. A connecting shaft is fixedly provided on the end surface of the roller, and the connecting shaft passes through the vertical plate and rotates with it. A motor is fixedly installed on one of the vertical plates, and the conveying shaft of the motor is transmission-connected with the connecting shaft passing through one end of the vertical plate, thereby driving the conveyor belt 1 to rotate.

[0046] A baffle is fixedly installed between the two vertical plates on the same side, and a transverse plate can be fixedly installed between the baffles on both sides of the conveyor belt 1. The transverse plate contacts the upper part of the conveyor belt 1 to support the conveyor belt 1.

[0047] Reference Figure 2As shown, a guide bar 8 can be fixedly installed at one end of the side panel 5 away from the cleaning tank 7. In this solution, the top surface of the guide bar 8 can be aligned with the bottom surface of the guide groove 501 located below the side panel 5. The set guide bar 8 facilitates the plate 2 to enter between the two side panels 5.

[0048] A cross bar 9 can be fixedly installed between the connecting blocks 4 on both sides of the conveyor belt 1 , and the connecting blocks 4 can be prevented from deflecting in a direction away from the side plates 5 by the arranged cross bar 9 .

[0049] Reference Figure 3 As shown, a protrusion 502 can be fixedly installed on the bottom surface of the side panel 5, and the protrusion 502 is located in the cleaning tank 7. When the connecting block 4 and the isolating block 3 are deflected to a horizontal state along the side edges of the plate 2, the connecting block 4 and the isolating block 3 can be located on the inner side of the protrusion 502, thereby preventing the connecting block 4 and the isolating block 3 from detaching from the plate 2.

[0050] Reference Figure 4 As shown, the inner side surface of the vertical section of the support plate 6 is recessed inward to form a recessed portion 601. In actual use, the first plate 2 that enters the support plate 6 is in contact with the vertical surface of the support plate 6. Since the second plate 2 that enters the support plate 6 is provided with an isolation block 3 at one end, through the provided recessed portion 601, when the isolation block 3 at one end of the second plate 2 contacts the recessed portion 601, the second plate 2 can be aligned with the first plate 2 that enters the support plate 6 in the vertical direction.

[0051] A lifting unit 11 is arranged below the cleaning pool 7. The lifting unit 11 may be a component such as a hydraulic rod. The telescopic end of the lifting unit 11 passes through the cleaning pool 7 and is fixedly connected to the support plate 6, so as to drive the support plate 6 to move in the vertical direction. Of course, the telescopic end of the lifting unit 11 is slidably matched with the cleaning pool 7.

[0052] Reference Fig. 9 As shown, grooves that slide with the limit block 14 are provided on both sides of the plug-in block 13, a first spring is fixedly arranged between the inner end surface of the groove and the limit block 14, a notch that slides with the magnetic block 15 is provided on the connecting block 4, a second spring is fixedly arranged between the inner end surface of the notch and the magnetic block 15, and a baffle is fixedly arranged at the end of the notch, which helps to prevent the magnetic block 15 from moving out of the notch.

[0053] Reference Fig.10 As shown, a rectangular groove for slidingly cooperating with the clamping block 18 is provided on the side surface of the positioning block 17 , and a third spring is fixedly arranged between the inner end surface of the rectangular groove and the clamping block 18 .

[0054] like Fig.11As shown, the isolation block 3 is provided with a mounting groove which is slidably matched with the guide block 301 , and a spring is fixedly arranged between the inner end surface of the mounting groove and the guide block 301 .

[0055] In actual use, the operation of the lifting unit 11 and the conveyor belt 1 can be controlled by structures such as PLC or single-chip microcomputer to enable them to run automatically. Of course, they can also be controlled manually. Here, another feasible control method is given. Specifically, a pressure sensor can be installed on the side of the connecting block 4 away from the cleaning tank 7. The pressure sensor can be connected to the above-mentioned motor that drives the conveyor belt 1 to run and the lifting unit 11 signal. During actual use, when the previous plate 2 is pushed to the specified position, it is restricted. At this time, the pressure of the next plate 2 on the connecting block 4 in front of it increases accordingly, so that the motor can be controlled by the pressure sensor to stop driving the conveyor belt 1 to rotate, and the lifting unit 11 can also move downward for a distance.

Claims

1. A cleaning device for cleaning a heat exchanger, comprising a conveyor belt for placing plates and a cleaning pool arranged at one end of the conveyor belt, wherein a plurality of bases are fixedly mounted on the conveyor belt, and characterized in that: The end of the base away from the conveyor belt is equipped with a connecting block through a clamping assembly, and the end of the connecting block away from the base is provided with an isolation block, both sides of the top of the conveyor belt are provided with side plates, the connecting block and the isolation block are slidably matched with the side plates, and an L-shaped support plate is slidably provided in the cleaning tank; When the base drives the connecting block to move to one end of the conveyor belt close to the cleaning tank, the clamping assembly on the connecting block disengages from the base, and when one of the plates is pushed to the top of the support plate, the other plate can push the isolation block and the connecting block at one end of the previous plate to deflect to a horizontal state during the movement, and drive the isolation block and the connecting block in the horizontal state to be distributed to the two ends of the plate; The clamping assembly includes a positioning block fixed to the bottom surface of the connecting block, a strip groove slidably matched with the positioning block is provided on the base, clamping blocks are elastically installed on both sides of the positioning block, a clamping groove matched with the clamping block is provided on the inner wall of the strip groove, a magnetic block is slidably mounted on a surface of the connecting block close to the side plate, a pull rope is fixedly provided between the magnetic block and the clamping block, a magnetic strip is fixedly embedded on the inner side surface of the side plate, and the magnetic strip has different magnetic poles on the side opposite to the magnetic block; A plug-in block is fixedly arranged on the end face of one end of the isolation block close to the base, a slot matching the plug-in block is provided on the top end face of the connection block, and a limiting slot is provided on the inner wall of the slot, and limiting blocks matching the limiting slot are elastically arranged on both sides of the plug-in block, and the end of the limiting block away from the plug-in block is a curved surface structure; A stop bar is fixedly mounted on a side of the isolation block away from the cleaning tank, and a clamping bar is arranged on a side of the connection block close to the cleaning tank; Two horizontal guide grooves are provided on the inner side surface of the side plate, a guide block slidingly matched with the guide groove is elastically provided on one side of the isolation block close to the side plate, both sides of the guide block close to the side plate are arranged with inclined surfaces, a slider is provided on one side of the connecting block close to the side plate, the slider slidingly matches with the guide groove, a lead-out groove is provided on the end of the side plate located at the guide groove away from the conveyor belt, and the lead-out groove is connected with the two guide grooves.

2. A cleaning device for cleaning a heat exchanger according to claim 1, characterized in that: A guide bar is fixedly mounted on one end of the side plate away from the cleaning tank.

3. The cleaning device for cleaning a heat exchanger according to claim 1, characterized in that: A cross bar is fixedly installed between the connecting blocks on both sides of the conveyor belt.

4. The cleaning device for cleaning a heat exchanger according to claim 1, characterized in that: The inner side surface of the vertical section on the support plate is recessed inward to form a recessed portion.

5. The cleaning device for cleaning a heat exchanger according to claim 1, characterized in that: A lifting unit is arranged below the cleaning pool, and a telescopic end of the lifting unit passes through the cleaning pool and is fixedly connected to the support plate.

6. A method for cleaning a heat exchanger using the cleaning device for cleaning a heat exchanger as claimed in any one of claims 1 to 5, characterized in that: The method comprises the following steps: placing the plate removed from the heat exchanger on a conveyor belt and located on a side of a connecting block close to a cleaning tank, and driving the plate to the top of the cleaning tank by means of the conveyor belt; disconnecting the connecting block from the base by means of the cooperation between the magnetic block and the magnetic strip, so that the connecting block and the isolation block at one end of the plate can be pushed to a horizontal state by the next plate that enters the support plate; and continuing to drive the plate to move by means of the conveyor belt and causing the connecting block and the isolation block to be distributed to the two ends of the plate.

Images