Dust-proof flushing device

Abstract

The application provides a dustproof flushing device, which comprises an outer frame, a plurality of heat exchange pipes for heat exchange are arranged in the outer frame, a cleaning mechanism is arranged on the outer side of each heat exchange pipe, a follow-up mechanism is connected to one side of the cleaning mechanism, a plurality of follow-up mechanisms located on the same straight line are connected to one side of the cleaning mechanism, a rectangular pipe which is perpendicular to the axis of the heat exchange pipe is connected to the cleaning mechanism, the rectangular pipe is hollow, and a movement feeding mechanism is connected to both ends of the rectangular pipe. The cleaning mechanism arranged in the air preheater realizes back-and-forth cleaning, so that the air preheater can be cleaned without stopping, the heat exchange steel pipe can be maintained clean in real time, the heat exchange efficiency of the whole device is ensured, and the cleaning needs can be realized without interruption under the condition of external water supply, meanwhile, the device has a certain self-cleaning function, the post-maintenance is reduced, the long-time cleaning work is adapted, the cleaning efficiency is improved, and the work process is simplified.

Description

Technical Field

[0001] This invention relates to the field of cleaning of thermal power plant equipment, and specifically to a dust-proof washing device. Background Technology

[0002] Thermal power generation utilizes the heat energy generated during the combustion of combustibles, converting it into electrical energy through a power generation device. During the power generation process, the flue gas after the combustion of combustibles still carries a large amount of heat energy. Some power plants use steel pipe air preheaters for heat recovery and exchange. However, during the exchange process, organic matter or chemical energy such as coal will carry a large amount of different inorganic matter after combustion, which moves with the flue gas. When heat exchange occurs in the air preheater, some of the internal chemical substances will adhere to the steel pipe when they encounter the relatively cold steel pipe. In addition, the adhesion of inorganic matter such as dust will cause different types of deposits to form on the surface of the steel pipe, reducing its heat exchange efficiency and thus reducing the heat transfer efficiency of the air preheater.

[0003] The existing method generally involves opening the air preheater's outer shell, cleaning the steel pipe surface using existing cleaning equipment, and then resealing the air preheater. However, this operation has low overall work efficiency, requires shutdown, and requires cleaning only after a certain amount of deposits have accumulated. During this period, the heat exchange efficiency continues to decline, affecting the overall heat exchange efficiency. Summary of the Invention

[0004] The main objective of this invention is to provide a dust-proof flushing device for power plants.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dustproof rinsing device, comprising an outer frame, within which are arranged a plurality of heat exchange tubes for heat exchange. A cleaning mechanism is fitted around the outer side of each heat exchange tube. A follower mechanism is connected to one side of each cleaning mechanism. A rectangular tube perpendicular to the axis of the heat exchange tube is connected to one side of a plurality of follower mechanisms located on the same straight line. The rectangular tube is hollow. Both ends of the rectangular tube are provided with a moving feeding mechanism connected to the outer frame. The moving feeding mechanism is connected to an external water pipe. The moving feeding mechanism drives the rectangular tube and the cleaning mechanism to reciprocate along the axial direction of the heat exchange tube and supplies water into the rectangular tube. The rectangular tube delivers the water from the moving feeding mechanism to the cleaning mechanism. While spraying water onto the surface of the heat exchange tube, the cleaning mechanism, using the reaction force of the sprayed water, rotates relative to the heat exchange tube to clean it.

[0006] Furthermore, the motion feeding mechanism includes a guide box fixedly connected to the outer frame, and a lead screw is rotatably connected inside the guide box; It also includes a transmission component, on which a nut adapted to the lead screw is fixedly installed. The power output end of the transmission component can drive the lead screw to rotate in both directions. The power input end of the transmission component is connected to a power unit, which inputs power to the transmission component, so that the transmission component drives the lead screw to rotate while the nut causes the transmission component to move relative to the lead screw. The rectangular tube is connected to the transmission component and moves with the transmission component. One side of the power unit is connected to a flexible metal hose located inside the guide box, and the other end of the flexible metal hose is connected to a water inlet pipe extending to the outside of the outer frame. The power unit is used to convert the kinetic energy of the water into rotational mechanical energy and transmit it as power to the transmission component.

[0007] Furthermore, the power unit includes a power box located inside the guide box, a drive propeller rotatably connected inside the power box, one end of the drive propeller extending to the outside of the power box and connected to the input end of the transmission component, one end of the metal hose communicating with the power box, and a guide pipe extending into a rectangular tube connected to one side of the power box. Water flows from the metal hose into the power box and drives the drive paddle to rotate, and then is transported to the rectangular tube through the guide pipe.

[0008] Furthermore, the transmission component includes a transmission box fixedly connected to the power box, the transmission box being rotatably connected to one end of the drive paddle, and a drive wheel located inside the transmission box being provided at one end of the drive paddle. Both sides of the drive wheel are meshed with bevel gears. The lead screw passes through the axis of the bevel gears without contacting them. Two nuts are provided and fixedly provided on both sides of the transmission box and coaxial with the bevel gears. The outer side of the lead screw is connected to a moving ring located between the two bevel gears via a spline drive. Both ends of the moving ring are fixedly connected with multiple embedded posts. The two bevel gears are provided with multiple transmission holes that cooperate with the embedded posts on the side near the moving ring. The drive wheel drives the two bevel gears to rotate in opposite directions. When the embedded post on one side cooperates with the transmission hole in the corresponding bevel gear, the corresponding bevel gear drives the moving ring and the lead screw to rotate. It also includes a movable sleeve rotatably connected to the outside of the movable ring, a movable frame fixedly connected to the bottom of the movable sleeve, and movable rods extending to the outside of the transmission box fixedly connected to both sides of the movable frame corresponding to the bevel gear. The movable frame is slidably adapted to the transmission box through the movable rods and can drive the movable ring to move through the movable sleeve. The two ends of the movable rods cooperate with the corresponding trigger rods. Trigger rods that cooperate with the transmission component are respectively provided at both ends of the guide box along the moving direction of the transmission component. When the transmission component moves, it drives the moving sleeve, the moving frame and the moving rod to move together to the end of the guide box. When the moving rod contacts the trigger rod, the moving frame is pushed to move to the other side during the movement of the guide box. Then, the moving sleeve drives the moving ring to separate from the corresponding bevel gear and adapt to another bevel gear.

[0009] Furthermore, a guide post is fixedly connected to the bottom of the transmission box, and a spring is fixedly connected inside the guide post. The other end of the spring is fixedly connected to a limiting post that slides with the guide post. The top of the limiting post contacts the bottom of the moving frame. When the moving frame moves, it can press down on the limiting post and pass over the limiting post to adapt to the corresponding bevel gear.

[0010] Furthermore, a partition plate is fixedly connected inside the guide box, and a rectangular groove for the transmission box to pass through is provided inside the partition plate. The rectangular groove is elongated and slides to fit the two sides of the transmission box and avoids the transmission box in the direction of movement of the transmission box. A moving groove for the movement of the rectangular tube is also provided at the bottom of the guide box. A flexible strip is fixedly connected to the rectangular tube inside the moving groove. The flexible strip can be expanded or compressed as the rectangular tube moves.

[0011] Furthermore, the follow-up mechanism includes a protective box connected to a rectangular tube. The protective box contains multiple absorption tubes. One end of each absorption tube is connected to the rectangular tube through a main pipe, and the other end of each absorption tube is connected to a supply pipe. A protective sleeve located outside the supply pipe is fixedly connected to the bottom of the protective box. A diversion box is fixedly connected to the bottom end of the protective sleeve, and one side of the diversion box is connected to the cleaning mechanism.

[0012] Furthermore, the diversion box is provided with a water passage chamber and a water outlet chamber arranged vertically. Both the water passage chamber and the water outlet chamber are connected to the cleaning mechanism. One end of the supply pipe is connected to the water passage chamber, and one end of the water outlet chamber is connected to a return pipe. The top end of the return pipe is connected to a backflushing pipe located in the protection box. Multiple water spray holes are provided on the side of the backflushing pipe near the absorption pipe. The water in the diversion box enters the corresponding connecting ring through the water passage chamber.

[0013] Furthermore, multiple vents for gas passage are provided on both sides of the protective box.

[0014] Furthermore, the cleaning mechanism includes a sleeve ring fixedly connected to the diversion box. A flexible arc-shaped plate is fixedly connected to one side of the sleeve ring. The arc-shaped plate is located between the water inlet chamber and the water outlet chamber and is used to guide the water flow within the sleeve ring. Two hollow cavities are provided inside the sleeve ring along the axial direction of the sleeve ring. Each hollow cavity is provided with a rotating ring rotatably connected to the sleeve ring. The rotating ring can rotate relative to the sleeve ring. Multiple driving plates are fixedly connected to the rotating ring. The water flow drives the rotating ring to rotate by pushing the driving plates. Multiple guide holes are also provided on the rotating ring. The guide holes are located between the two driving plates. A cleaning block fixedly connected to the rotating ring is connected to one side of the guide hole. The cleaning block is in contact with the outer surface of the heat exchange tube. The cleaning block is inclined relative to the contact surface of the heat exchange tube. Multiple spray pipes are also connected to the cleaning block for spraying water and backflushing. The cleaning blocks on the two rotating rings are arranged in opposite directions so that the rotation directions of the two rotating rings are opposite, so as to perform rotational friction cleaning of the heat exchange tube surface in different directions.

[0015] The beneficial effects of this invention are reflected in: This invention achieves back-and-forth cleaning through a cleaning mechanism built into the air preheater, thus enabling the air preheater to be cleaned without shutting down the unit. It can also maintain the cleanliness of the heat exchange steel pipes in real time, ensuring the heat exchange efficiency of the entire device. Furthermore, it only requires an external water supply to meet the cleaning needs without interruption. It also has a certain self-cleaning function, reducing subsequent maintenance, adapting to long-term cleaning work, increasing cleaning efficiency, and simplifying the workflow. Attached Figure Description

[0016] In the attached diagram: Figure 1 This is a partial front-view stereoscopic structural diagram of the present invention; Figure 2 This is a partial front sectional view of the present invention; Figure 3 A partial frontal 3D structural diagram of the motion feeding mechanism; Figure 4 A partial front sectional view of the motion feeding mechanism; Figure 5 This is a front-view three-dimensional structural diagram of the transmission components; Figure 6 This is a front-view three-dimensional structural diagram of the transmission component. Figure 7 This is a partial front sectional view of the transmission component; Figure 8 for Figure 7 Enlarged view of point A; Figure 9 This is a front-view three-dimensional structural diagram of the servo mechanism; Figure 10 This is a schematic diagram of the main view of the servo mechanism; Figure 11 This is a partial front-view three-dimensional structural diagram of the servo mechanism; Figure 12 A partial frontal 3D structural diagram of the cleaning mechanism; Figure 13 This is a front sectional view of the servo mechanism; Figure 14 Partial side view of the three-dimensional structure of the cleaning mechanism Explanation of reference numerals in the attached figures: 01. Outer frame; 02. Inlet pipe; 03. Heat exchange pipe; 04. Connecting ring; 05. Guide box; 06. Rectangular tube; 07. Protective box; 11. Power box; 12. Flexible strip; 13. Lead screw; 14. Metal flexible hose; 15. Divider plate; 16. Trigger rod; 17. Transmission box; 20. Nut; 21. Moving rod; 22. Drive propeller; 23. Drive wheel; 24. Bevel gear; 25. Moving sleeve ; 26. Moving frame; 27. Guide post; 28. Embedded post; 29. ​​Moving ring; 32. Limiting post; 33. Spring; 34. Flow guide tube; 40. Return tube; 41. Protective sleeve; 42. Diverter box; 44. Absorption tube; 45. Supply tube; 46. Arc-shaped plate; 47. Drive plate; 48. Rotating ring; 49. Cleaning block; 50. Flow guide hole; 51. Injection tube; 54. Main pipe; 55. Backflush tube. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only a part of the embodiments of the invention, and not all of them. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0018] See Figures 1 to 8 ; This invention discloses a dustproof rinsing device, including an outer frame 01. Multiple heat exchange tubes 03 for heat exchange are arranged inside the outer frame 01. A cleaning mechanism is sleeved on the outside of each heat exchange tube 03. A follower mechanism is connected to one side of the cleaning mechanism. Multiple follower mechanisms located on the same straight line are connected to a rectangular tube 06 perpendicular to the axis of the heat exchange tube 03. The rectangular tube 06 is hollow. Both ends of the rectangular tube 06 are equipped with a moving feeding mechanism connected to the outer frame 01. The moving feeding mechanism drives the rectangular tube 06 and the cleaning mechanism to reciprocate along the axial direction of the heat exchange tube 03, cleaning the surface of the heat exchange tube 03. The rectangular tube 06 delivers water from the moving feeding mechanism to the cleaning mechanism. While spraying water onto the surface of the heat exchange tube 03, the cleaning mechanism, using the reaction force of the sprayed water, rotates relative to the heat exchange tube 03 to clean it and remove impurities condensed on the surface of the heat exchange tube 03.

[0019] In one embodiment, the motion feeding mechanism includes a guide box 05 fixedly connected to the outer frame 01, a lead screw 13 rotatably connected inside the guide box 05, and a transmission component. A nut 20 that is helically adapted to the lead screw 13 is fixedly provided on the transmission component. The power output end of the transmission component can drive the lead screw 13 to rotate in both directions. The power input end of the transmission component is connected to a power unit, which inputs power to the transmission component, so that while the transmission component drives the lead screw 13 to rotate, the nut 20 causes the transmission component to move relative to the lead screw 13. A rectangular tube 06 is connected to the transmission component and moves together with the transmission component. A metal hose 14 located inside the guide box 05 is connected to one side of the power unit. The other end of the metal hose 14 is connected to a water inlet pipe 02 extending to the outside of the outer frame 01. The power unit drives the drive transmission component to move back and forth periodically inside the guide box 05. The water inlet pipe 02 is connected to an external water supply pipe. High-pressure water is input from the outside and then transmitted through the water inlet pipe 02 and the metal hose 14. The power unit converts the energy inside the high-pressure water into mechanical energy and transmits it to the transmission component. The transmission component converts the mechanical energy and, in conjunction with the thread of the lead screw 13, realizes the periodic back and forth movement inside the guide box 05, thereby driving the rectangular tube 06 and the cleaning mechanism to move back and forth, thus cleaning the surface of the heat exchange tube 03.

[0020] In one embodiment, the power unit includes a power box 11 located inside the guide box 05. A drive paddle 22 is rotatably connected inside the power box 11. One end of the drive paddle 22 extends to the outside of the power box 11 and is connected to the input end of the transmission component. One end of the metal hose 14 is connected to the power box 11. A guide pipe 34 extending into the rectangular tube 06 is connected to one side of the power box 11. The high-pressure water transmitted through the metal hose 14 drives the drive paddle 22 to rotate, thus transmitting power. At the same time, the water introduced enters the rectangular tube 06 through the guide pipe 34, thereby realizing the transmission of cleaning water.

[0021] In one embodiment, the transmission component includes a transmission box 17 fixedly connected to the power box 11. The transmission box 17 is rotatably connected to one end of the drive paddle 22. One end of the drive paddle 22 is provided with a drive wheel 23 located inside the transmission box 17. Both sides of the drive wheel 23 are meshed with bevel gears 24. The lead screw 13 passes through the axis of the bevel gears 24 without contacting the bevel gears 24. Two nuts 20 are provided and fixedly provided on both sides of the transmission box 17 and coaxial with the bevel gears 24. The outer side of the lead screw 13 is connected by a spline to a movable ring 29 located between the two bevel gears 24. (Specifically, a long groove can be opened along the length direction of the lead screw 13. The long groove can be provided with multiple grooves distributed circumferentially along the circular cross-section of the lead screw 13. The spline is a circular sleeve, and the sleeve has a part that extends into the long groove and...) The sliding ring 29 has multiple embedded posts 28 fixedly connected to both ends. The two bevel gears 24 are provided with multiple transmission holes that cooperate with the embedded posts 28 on the side near the sliding ring 29. The drive wheel 23 drives the two bevel gears 24 to rotate in opposite directions. The sliding ring 29 on the embedded post 28 is embedded in the transmission hole. The corresponding bevel gear 24 drives the sliding ring 29 and the lead screw 13 to rotate. Under the limitation of the relatively fixed nut 20, the entire power box 11 and transmission box 17 are driven to move. When the embedded post 28 moves and contacts the bevel gear 24 on the other side, the lead screw 13 starts to reverse, which causes the power box 11 and transmission box 17 to move in the direction, which in turn drives the corresponding rectangular tube 06 to move back and forth periodically. It also includes a movable sleeve 25 rotatably connected to the outside of the movable ring 29, a movable frame 26 fixedly connected to the bottom of the movable sleeve 25, a movable rod 21 fixedly provided on the movable frame 26, the movable frame 26 slidingly adapted to the transmission box 17 through the movable rod 21, and can drive the movable ring 29 to move through the movable sleeve 25. The guide box 05 is provided with trigger rods 16 cooperating with the transmission component at both ends along the moving direction of the transmission component. The two ends of the movable rod 21 cooperate with the corresponding trigger rods 16. When the transmission component moves, it drives the movable sleeve 25, the movable frame 26 and the movable rod 21 to move together to the end of the guide box 05. The movable rod 21 contacts the trigger rod 16 and pushes the movable frame 26 to move to the other side during the movement of the guide box 05. Then, through the movable sleeve 25, it drives the movable ring 29 to separate from the corresponding bevel gear 24 and adapt to another bevel gear 24.

[0022] In one embodiment, a guide post 27 is fixedly connected to the bottom of the transmission box 17. A spring 33 is fixedly connected inside the guide post 27. The other end of the spring 33 is fixedly connected to a limiting post 32 that slides with the guide post 27. The top end of the limiting post 32 contacts the moving frame 26. The cross-section of the moving frame 26 adopts a symmetrically connected low U-shaped structure. When the moving rod 21 contacts the corresponding trigger rod 16, it will drive the moving rod 21 to move to the other side, thereby driving the moving frame 26 to move to the other side. Thus, through the transmission of the moving sleeve 25, the embedded post 28 and the moving ring 29 are driven to move. The embedded post 28 is embedded into the corresponding bevel gear 24. Power is transmitted, and at this time, the limiting post 32 bounces up under the action of the spring 33, limiting the movement frame 26 to move to one side, maintaining the temporary stability of the position of the movement frame 26. When the entire transmission box 17 moves to the other side, the moving rod 21 contacts the trigger rod 16 on the other side, driving the movement frame 26 to move in the opposite direction. The limiting post 32 is squeezed down, and the bottom of the movement frame 26 sweeps across the surface of the limiting post 32. When it reaches the other end of the movement frame 26, the limiting post 32 bounces up, limiting the temporary movement of the movement frame 26. At this time, the embedded post 28 and the moving ring 29 move and drive the bevel gear 24 on the other side, realizing the reverse movement of the transmission box 17.

[0023] In one embodiment, a partition plate 15 is fixedly connected inside the guide box 05. A rectangular groove for the transmission box 17 to pass through is provided inside the partition plate 15. The rectangular groove is elongated and slides to fit the two sides of the transmission box 17 and avoids the transmission box 17 in the direction of movement of the transmission box 17. A moving groove for the rectangular tube 06 to move is also provided at the bottom of the guide box 05. A flexible strip 12 fixedly connected to the rectangular tube 06 is provided inside the moving groove. The flexible strip 12 can be expanded or compressed along with the movement of the rectangular tube 06. The flexible strip 12 makes the inside of the rectangular tube 06 relatively sealed to the outside, ensuring the stability of the internal environment of the rectangular tube 06.

[0024] like Figures 1-14 As shown, the follower mechanism includes a protective box 07 connected to a rectangular tube 06. Multiple absorption pipes 44 are installed inside the protective box 07. One end of each absorption pipe 44 is connected to a main pipe 54 connected to the rectangular tube 06, and the other end of each absorption pipe 44 is connected to a supply pipe 45. A protective sleeve 41 is fixedly connected to the bottom of the protective box 07, located outside the supply pipe 45. A diversion box 42 is fixedly connected to the bottom of the protective sleeve 41. One side of the diversion box 42 is connected to the cleaning mechanism. The protective sleeve 41 is used to connect the diversion box 42 and protect the supply pipe 45. Water entering the rectangular tube 06 enters the absorption pipe 44 through the main pipe 54. In the high-temperature environment flowing inside the exchanger, the cleaning water is heated, the pressure increases, and then it enters the diversion box 42 through the supply pipe 45 for transfer. The diversion box 42 is equipped with a water passage chamber and a water outlet chamber arranged vertically. Both the water passage chamber and the water outlet chamber are connected to the cleaning mechanism. One end of the supply pipe 45 is connected to the water passage chamber, and one end of the water outlet chamber is connected to the return pipe 40. The top end of the return pipe 40 is connected to the backwash pipe 55 located in the protection box 07. The high-pressure water in the diversion box 42 enters the corresponding sleeve ring 04 through the water passage chamber. Then, the excess water around the sleeve ring 04 enters the return pipe 40 through the water outlet chamber and is further sprayed onto the surface of the absorption pipe 44 through the backwash pipe 55 to assist in cleaning the absorption pipe 44.

[0025] like Figure 11 As shown, the protective box 07 has multiple vent holes on both sides for gas passage, and the backflushing pipe 55 has multiple water spray holes on the side near the absorption pipe 44. The vent holes allow high-temperature gas to pass through, and the water spray holes spray high-pressure water onto the absorption pipe 44 to clean the absorption pipe 44.

[0026] like Figures 9-14 As shown, the cleaning mechanism includes a sleeve ring 04 fixedly connected to the diversion box 42. A flexible arc-shaped plate 46 is fixedly connected to one side of the sleeve ring 04. The arc-shaped plate 46 is located between the water inlet chamber and the water outlet chamber for guiding the water flow within the sleeve ring 04. Two hollow cavities are provided inside the sleeve ring 04 along the axial direction of the sleeve ring 04. Each hollow cavity is provided with a rotating ring 48 rotatably connected to the sleeve ring 04. Multiple driving plates 47 are fixedly connected to the rotating ring 48. Multiple guide holes 50 are also provided on the rotating ring 48. The guide holes 50 are located between the two driving plates 47. One side of the guide hole 50 is connected to a cleaning block 49 fixedly connected to the rotating ring 48. The cleaning block 49 contacts the outer surface of the heat exchange tube 03. The cleaning block 49 is inclined relative to the contact surface of the heat exchange tube 03. Multiple spray pipes 51 are also connected to the cleaning block 49 for spraying water and backflushing. The cleaning blocks 49 on the two rotating rings 48 are arranged in opposite directions. The cross-section of ring 48 adopts an I-shaped structure. Through the water inlet of the diversion box 42, the water flow moves along the inner circumference of the sleeve ring 04 under the obstruction of the arc-shaped plate 46. At this time, the water flow pushes the drive plate 47, which drives the rotating ring 48 to rotate. At the same time, most of the water enters the cleaning block 49 through the guide hole 50, and then sprays out through the spray pipe 51, contacting the surface of the heat exchange tube 03. At the same time, it generates a corresponding counter-thrust force on the cleaning block 49. With the help of the drive plate 47, the rotating ring 48 is rotated. The excess water that does not overflow enters the return pipe 40 through the water outlet chamber of the diversion box 42, and then sprays out through the backflushing pipe 55. Since the drive plate 47 and the cleaning block 49 are set in opposite directions, the two corresponding rotating rings 48 rotate in opposite directions, realizing the treatment of the surface of the heat exchange tube 03 in different directions. In addition, with the movement of the sleeve ring 04, the surface of the entire heat exchange tube 03 is cleaned.

[0027] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0028] It should be noted that if the embodiments of the invention involve directional indicators (such as up and down), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0029] Furthermore, the meaning of "and / or" throughout the text includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B. Additionally, if the embodiments of the invention involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" can explicitly or implicitly include at least one of those features. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the invention.

Claims

1. A dustproof washing device, characterized in that, The system includes an outer frame (01), inside which are arranged multiple heat exchange tubes (03) for heat exchange. Each heat exchange tube (03) is fitted with a cleaning mechanism on its outer side. One side of the cleaning mechanism is connected to a follower mechanism. One side of the multiple follower mechanisms located on the same straight line is connected to a rectangular tube (06) that is perpendicular to the axis of the heat exchange tube (03). The rectangular tube (06) is hollow. Both ends of the rectangular tube (06) are provided with a motion feeding mechanism connected to the outer frame (01). The motion feeding mechanism is connected to an external water pipe. The motion feeding mechanism drives the rectangular tube (06) and the cleaning mechanism to reciprocate along the axis of the heat exchange tube (03) and supplies water into the rectangular tube (06). The rectangular tube (06) delivers the water in the motion feeding mechanism to the cleaning mechanism. While spraying water on the surface of the heat exchange tube (03), the cleaning mechanism rotates relative to the heat exchange tube (03) to clean the heat exchange tube (03) by means of the reaction force of the sprayed water.

2. The dustproof washing device according to claim 1, characterized in that, The motion feeding mechanism includes a guide box (05) fixedly connected to the outer frame (01), and a lead screw (13) is rotatably connected inside the guide box (05); It also includes a transmission component, on which a nut (20) is fixedly installed that is helically adapted to the lead screw (13). The power output end of the transmission component can drive the lead screw (13) to rotate in both directions. The power input end of the transmission component is connected to a power unit, which inputs power to the transmission component, so that the transmission component drives the lead screw (13) to rotate while the nut (20) causes the transmission component to move relative to the lead screw (13). The rectangular tube (06) is connected to the transmission component and moves together with the transmission component. One side of the power unit is connected to a metal hose (14) located inside the guide box (05), and the other end of the metal hose (14) is connected to a water inlet pipe (02) extending to the outside of the outer frame (01). The power unit is used to convert the kinetic energy of the water into rotational mechanical energy and transmit it to the transmission component as power.

3. The dustproof washing device according to claim 2, characterized in that, The power unit includes a power box (11) located inside the guide box (05), a drive propeller (22) is rotatably connected inside the power box (11), one end of the drive propeller (22) extends to the outside of the power box (11) and is connected to the input end of the transmission component, one end of the metal hose (14) is connected to the power box (11), and a guide pipe (34) extending into the rectangular tube (06) is connected to one side of the power box (11); Water flows from the metal hose (14) into the power box (11) and drives the drive paddle (22) to rotate, and then is transported to the rectangular tube (06) through the guide pipe (34).

4. The dustproof washing device according to claim 3, characterized in that, The transmission component includes a transmission box (17) fixedly connected to the power box (11). The transmission box (17) is rotatably connected to one end of the drive paddle (22). One end of the drive paddle (22) is provided with a drive wheel (23) located inside the transmission box (17). Both sides of the drive wheel (23) are meshed with bevel gears (24). The lead screw (13) passes through the axis of the bevel gears (24) and does not contact the bevel gears (24). Two nuts (20) are provided and fixedly installed on both sides of the transmission box (17) and coaxial with the bevel gears (24). The outer side of the rod (13) is connected by a spline drive to a movable ring (29) located between two bevel gears (24). Both ends of the movable ring (29) are fixedly connected to multiple embedded posts (28). The two bevel gears (24) are provided with multiple transmission holes that cooperate with the embedded posts (28) on the side near the movable ring (29). The drive wheel (23) drives the two bevel gears (24) to rotate in opposite directions. When the embedded post (28) on one side cooperates with the transmission hole in the corresponding bevel gear (24), the corresponding bevel gear (24) drives the movable ring (29) and the lead screw (13) to rotate. It also includes a movable sleeve (25) rotatably connected to the outside of the movable ring (29), and a movable frame (26) fixedly connected to the bottom of the movable sleeve (25). The movable frame (26) is fixedly connected to both sides of the bevel gear (24) with movable rods (21) extending to the outside of the transmission box (17). The movable frame (26) is slidably adapted to the transmission box (17) through the movable rods (21) and can drive the movable ring (29) to move through the movable sleeve (25). Inside the guide box (05), trigger rods (16) that cooperate with the transmission component are respectively provided at both ends along the moving direction of the transmission component. When the transmission component moves, it drives the moving sleeve (25), the moving frame (26), and the moving rod (21) to move together to the end of the guide box (05). When the moving rod (21) contacts the trigger rod (16), and during the movement of the guide box (05), it pushes the moving frame (26) to move to the other side, and then drives the moving ring (29) to separate from the corresponding bevel gear (24) and adapt to another bevel gear (24) through the moving sleeve (25).

5. A dustproof washing device according to claim 4, characterized in that, The bottom of the transmission box (17) is also fixedly connected to a guide post (27), and a spring (33) is fixedly connected inside the guide post (27). The other end of the spring (33) is fixedly connected to a limiting post (32) that slides with the guide post (27). The top of the limiting post (32) contacts the bottom of the moving frame (26). When the moving frame (26) moves, it can press down on the limiting post (32) and pass over the limiting post (32) to match the corresponding bevel gear (24).

6. A dustproof washing device according to claim 4, characterized in that, A partition plate (15) is fixedly connected inside the guide box (05). A rectangular groove for the transmission box (17) to pass through is provided inside the partition plate (15). The rectangular groove is long and narrow, and slides to fit the two sides of the transmission box (17) and avoids the transmission box (17) in the direction of movement of the transmission box (17). A moving groove for the rectangular tube (06) to move is also provided at the bottom of the guide box (05). A flexible strip (12) is fixedly connected to the rectangular tube (06) inside the moving groove. The flexible strip (12) can be expanded or compressed along with the movement of the rectangular tube (06).

7. A dustproof washing device according to claim 1, characterized in that, The follow-up mechanism includes a protective box (07) connected to a rectangular tube (06). The protective box (07) is provided with multiple absorption tubes (44). One end of the multiple absorption tubes (44) is connected to the rectangular tube (06) through a main pipe (54), and the other end of the multiple absorption tubes (44) is connected to a supply pipe (45). The bottom of the protective box (07) is fixedly connected to a protective sleeve (41) located outside the supply pipe (45). The bottom end of the protective sleeve (41) is fixedly connected to a diversion box (42). One side of the diversion box (42) is connected to the cleaning mechanism.

8. A dustproof washing device according to claim 7, characterized in that, The diversion box (42) is provided with a water passage chamber and a water outlet chamber arranged vertically. Both the water passage chamber and the water outlet chamber are connected to the cleaning mechanism. One end of the supply pipe (45) is connected to the water passage chamber, and one end of the water outlet chamber is connected to the return pipe (40). The top end of the return pipe (40) is connected to the backwash pipe (55) located in the protection box (07). Multiple water spray holes are provided on the side of the backwash pipe (55) near the absorption pipe (44). The water in the diversion box (42) enters the corresponding connecting ring (04) through the water passage chamber.

9. A dustproof washing device according to claim 8, characterized in that, The protective box (07) has multiple vent holes on both sides for gas to pass through.

10. A dustproof washing device according to claim 8, characterized in that, The cleaning mechanism includes a sleeve ring (04) fixedly connected to a diversion box (42). A flexible arc-shaped piece (46) is fixedly connected to one side of the sleeve ring (04). The arc-shaped piece (46) is located between the water inlet chamber and the water outlet chamber and is used to guide the water flow in the sleeve ring (04). Two hollow cavities are provided inside the sleeve ring (04) along the axial direction of the sleeve ring (04). Each hollow cavity is provided with a rotating ring (48) rotatably connected to the sleeve ring (04). The rotating ring (48) can rotate relative to the sleeve ring (04). Multiple driving plates (47) are fixedly connected to the rotating ring (48). The water flow drives the rotating ring (48) to rotate by pushing the driving plates (47). The moving ring (48) is also provided with a plurality of guide holes (50), the guide holes (50) are located between two drive plates (47), one side of the guide holes (50) is connected to a cleaning block (49) fixedly connected to the rotating ring (48), the cleaning block (49) is in contact with the outer surface of the heat exchange tube (03), the cleaning block (49) is inclined relative to the contact surface of the heat exchange tube (03), the cleaning block (49) is also connected with a plurality of spray pipes (51) for spraying water and backwashing, wherein the cleaning blocks (49) on the two rotating rings (48) are arranged in opposite directions so that the rotation directions of the two rotating rings (48) are opposite, so as to perform rotational friction cleaning of the surface of the heat exchange tube (03) in different directions.

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