High-efficiency energy-saving vertical self-cooling centrifugal pump

Abstract

This invention belongs to the field of centrifugal pump technology, specifically a high-efficiency and energy-saving vertical self-cooling centrifugal pump. It includes a centrifugal pump body, with an inlet pipe and an outlet pipe arranged laterally on both sides of the pump body. A filter plate for filtering impurities in the water is fixedly connected to one side of the inner wall of the inlet pipe. The filter plate has multiple filter holes. A radially converging impurity removal component is provided on the inlet pipe for cleaning impurities from the filter plate surface. This invention utilizes the radially converging impurity removal component to transfer impurities remaining on the filter plate surface to a collection box while the filter plate filters solid impurities in the liquid. This avoids clogging caused by impurities remaining and accumulating on the filter plate surface, ensuring efficient liquid flow.

Description

Technical Field

[0001] This invention belongs to the field of centrifugal pump technology, specifically a high-efficiency and energy-saving vertical self-cooling centrifugal pump. Background Technology

[0002] Vertical centrifugal pumps are widely used fluid transport equipment. Their most prominent structural feature is that the drive motor is located above the pump body, and the two are connected by a shaft perpendicular to the ground. In common structural forms, the inlet and outlet are on the same horizontal line. The motor drives the impeller to rotate at high speed inside the pump casing, so that the liquid gains kinetic and pressure energy under the action of centrifugal force, thereby realizing the continuous transport of liquid.

[0003] In the prior art, when transporting liquids, in order to prevent hard impurities (such as gravel, metal particles, etc.) in the liquid from contacting the impeller and causing the impeller to jam or wear, a filter screen is installed at the water inlet to intercept solid impurities in the liquid.

[0004] However, with prolonged use, impurities accumulate on the filter screen's interception surface. These impurities easily cover the filter screen surface, causing blockage and affecting liquid flow efficiency. Maintaining liquid flow by manually cleaning the filter screen periodically is time-consuming and labor-intensive, and can disrupt the normal operation of the centrifugal pump. Furthermore, the filter screen may remain clogged until the next cleaning, making it difficult to guarantee consistent liquid flow efficiency. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, the present invention proposes a high-efficiency and energy-saving vertical self-cooling centrifugal pump.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a high-efficiency and energy-saving vertical self-cooling centrifugal pump, including a centrifugal pump body, an inlet pipe and an outlet pipe respectively arranged in the transverse direction on both sides of the centrifugal pump body, a filter plate for filtering impurities in water is fixedly connected to one side of the inner wall of the inlet pipe, the filter plate is provided with multiple filter holes, and a radially converging impurity removal component for cleaning impurities on the surface of the filter plate is provided on the inlet pipe;

[0007] The radially converging impurity removal assembly includes a transverse conveying pipe and multiple scrapers. The ends of the scrapers are attached to the end face of the filter plate near the inlet pipe, and the scrapers are evenly distributed around the circumference of the filter plate. A take-up shaft is rotatably connected to one side of the inner cavity of each scraper, and a scraping cloth is wound on the take-up shaft. The scraping cloth slides through the side wall of the scraper, with one edge of the scraping cloth attached to the surface of the filter plate, and the end of the scraping cloth is fixedly connected to the outer edge of the other scraper. A circular through hole is provided in the middle of the filter plate, and the opening of the transverse conveying pipe is fixedly connected to the wall of the circular through hole. A second conveying screw is rotatably connected to one end of the inner cavity of the transverse conveying pipe, and the second conveying screw passes through the circular through hole. The multiple scrapers and the scraping cloth cooperate to form a barrier structure. When the size of the barrier structure is reduced, the scrapers and scraping cloth scrape impurities along the surface of the filter plate, bringing the impurities closer to the second conveying screw. The second conveying screw rotates, causing the impurities to enter the interior of the transverse conveying pipe through the circular through hole.

[0008] Preferably, the water inlet pipe is provided with a drive assembly for driving the scraper to move;

[0009] The drive assembly includes a transverse moving ring that is slidably sleeved on one side of the outer wall of the water inlet pipe. Multiple radial rods are slidably connected to the transverse moving ring along the radial direction. A sliding plate is slidably passed through the radial rods. The sliding plate is slidably connected to the side wall of the water inlet pipe along the transverse direction. One end of the radial rod located in the inner cavity of the water inlet pipe is fixedly connected to one side of the scraper.

[0010] Preferably, a lead screw is threaded to one side of the transverse moving ring, and both ends of the lead screw are rotatably connected to the outer wall of the water inlet pipe. A second motor is fixedly connected to one side of the outer wall of the water inlet pipe, and the output end of the second motor is fixedly connected to one end of the lead screw. A rotating ring is rotatably sleeved on one side of the outer ring of the transverse moving ring. A connecting rod is rotatably connected to one end of the radial rod, and the end of the connecting rod away from the radial rod is rotatably connected to the rotating ring. An electric actuator is fixedly connected to one side of the upper end of the transverse moving ring, and the piston end of the electric actuator is fixedly connected to one end of the top radial rod.

[0011] Preferably, a spring is sleeved on one end of the winding shaft, one end of which is fixedly connected to the end of the winding shaft, and the other end is fixedly connected to the inner wall of the scraper.

[0012] Preferably, the inlet pipe is provided with a collection component for transferring impurities from the transverse conveying pipe;

[0013] The collection assembly includes a vertical conveying pipe, a collection box, and a first conveying screw. The vertical conveying pipe extends vertically through one side of the top of the inlet pipe, and the opening of the vertical conveying pipe in the inner cavity of the inlet pipe is connected to the inner cavity of the horizontal conveying pipe. The collection box is fixedly connected to one side of the outer wall of the inlet pipe by a support plate. A second housing is fixedly connected to one side of the top of the collection box, and a first conveying screw is rotatably connected to one side of the bottom of the second housing. The first conveying screw is located in the inner cavity of the vertical conveying pipe, and the top of the vertical conveying pipe is connected to the inner cavity of the collection box through a discharge pipe.

[0014] Preferably, the end of the transverse conveying pipe away from the inlet pipe is fixedly connected to a housing 1. One end of the conveying screw 2 is rotatably inserted through one side of the housing 1, and a worm gear 1 is fixedly sleeved at the end of the conveying screw 2 located inside the housing 1. A worm 1 is rotatably connected to one side of the bottom of the housing 2. The bottom of the worm 1 is rotatably inserted through the inlet pipe and one side wall of the housing. A helical tooth is provided at one end of the worm 1 located inside the housing 1, and the helical tooth meshes with the worm gear 1. A motor 1 is fixedly connected to one side of the top of the housing 2. The output end of the motor 1 is fixedly connected to the upper end of the worm 1. A gear 3 is fixedly sleeved at one end of the worm 1 located inside the housing 2. A gear 1 is fixedly connected to one end of the conveying screw 1 located inside the housing 2. The gear 1 and gear 3 mesh with each other.

[0015] Preferably, the water inlet pipe is provided with a reciprocating pushing component for pushing out impurities that have seeped into the filter holes;

[0016] The reciprocating push assembly includes a transverse frame sleeved on one end of the transverse conveying pipe. A plurality of pins matching the filter hole specifications are fixedly connected to one end face of the transverse frame, and each pin is aligned with a filter hole.

[0017] Preferably, a housing three is fixedly connected to one side of the inner wall of the water inlet pipe. Two sliding rods are slidably inserted through one side of the housing three. The end of the sliding rod located outside the housing three is fixedly connected to one side of the transverse frame. The end of the sliding rod located inside the housing three is fixedly connected to a pressing block. A worm gear two and a cam are rotatably connected to one side of the inner wall of the housing three. The worm gear two and the cam are fixedly connected. The cam is in contact with the surface of one side of the pressing block. A worm two is rotatably connected to one side of the bottom of the housing two. One end of the worm two is rotatably inserted through the water inlet pipe and one side of the housing three. The end of the worm two located inside the cavity of the housing three is provided with helical teeth, and the helical teeth mesh with the worm gear two. A spring one is sleeved on one side of the sliding rod. One end of the spring one is fixedly connected to one side of the pressing block, and the other end is fixedly connected to the inner wall of the housing three. A gear two is fixedly sleeved on one end of the worm two located inside the cavity of the housing two. The gear two meshes with the gear one.

[0018] Preferably, the scraper is provided with a convergent and collaborative crushing component;

[0019] The convergent and collaborative crushing assembly includes a gear four and a crushing blade. The gear four and the crushing blade are fixedly connected, and both are rotatably connected to the side of the scraper near the filter plate. The gear four is located in the inner cavity of the scraper, and the crushing blade is located outside the scraper. A rack is slidably connected to the inner cavity of the scraper, and the rack meshes with the gear four. A spring two is fixedly connected to one end of the rack, and the other end of the spring two is fixedly connected to the inner wall of the scraper. Multiple protruding plates are fixedly connected circumferentially to one side of the inner wall of the water inlet pipe. The protruding plates are provided with wavy protrusions, and each protruding plate corresponds to a rack position. A contact ball for contacting the wavy protrusions on the protruding plates is fixedly connected to one end of the rack.

[0020] Preferably, the centrifugal pump body is equipped with a self-cooling component;

[0021] The self-cooling component includes a cooling pipe wound around the outer shell of the centrifugal pump body. The cooling pipe has two ports, which are connected to the outlet pipe through an inlet connector and an outlet connector, respectively.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. The high-efficiency and energy-saving vertical self-cooling centrifugal pump of this invention utilizes a radially converging impurity removal component. While filtering solid impurities from the liquid through the filter plate, it transfers impurities remaining on the filter plate surface to a collection box, preventing clogging caused by impurities remaining and accumulating on the filter plate surface, thus ensuring efficient liquid flow. Simultaneously, the unobstructed flow path reduces head loss during liquid transport, minimizing unnecessary power consumption and thus increasing energy efficiency. Compared to manual periodic cleaning, this solution enables real-time online maintenance of the filter plate, saving time and effort without interfering with the normal operation of the centrifugal pump. Furthermore, before resetting the retaining structure, the entire retaining structure can be moved laterally away from the filter plate, and then fitted to the filter plate surface. This prevents impurities outside the retaining structure's range from being pushed towards the inner wall of the inlet pipe when the retaining structure is reset along the filter plate surface, thus avoiding the situation where impurities in that area cannot be effectively removed.

[0024] 2. The high-efficiency and energy-saving vertical self-cooling centrifugal pump of this invention utilizes a reciprocating drive assembly. By continuously moving the transverse frame laterally back and forth, impurities that have seeped into the filter holes are pushed out. The pushed-out impurities are then gathered at the two conveying screws by the baffle structure and transferred to the collection box for collection. This avoids the situation where some solid impurities seep into the filter holes and block them, affecting the subsequent liquid flow.

[0025] 3. The high-efficiency and energy-saving vertical self-cooling centrifugal pump of the present invention utilizes a cohesive crushing component. When the scraper moves towards the second conveying screw, the contact ball contacts the wavy protrusion on the corresponding protrusion plate and moves along the wavy protrusion. The rack slides back and forth under the undulation of the wavy protrusion, thereby causing the fourth gear and the crushing blade to rotate back and forth. This can cut the impurities while pushing them to move. In addition, when the impurities pushed by the scraper reach the circular through hole, they will also be cut by the crushing blade, thereby dispersing the agglomerated and clustered impurities and preventing them from getting stuck during the conveying process, thus ensuring the conveying effect.

[0026] 4. The high-efficiency and energy-saving vertical self-cooling centrifugal pump of the present invention utilizes a self-cooling component. When liquid passes through the outlet pipe, it is guided by the inlet and outlet connectors to flow into the cooling pipe. This diverted liquid flows through the centrifugal pump body casing, carrying away the heat dissipated by the motor driving the impeller, and then flows back into the outlet pipe, thereby forming continuous cooling for the motor, effectively preventing overheating and ensuring its service life. Attached Figure Description

[0027] The invention will now be further described with reference to the accompanying drawings.

[0028] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0029] Figure 2 This is a schematic diagram of the three-dimensional structure of the collection box;

[0030] Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle;

[0031] Figure 4 This is a schematic diagram of a partial cross-sectional three-dimensional structure of the water inlet pipe;

[0032] Figure 5 yes Figure 4 Enlarged view of a section at point B in the middle;

[0033] Figure 6 This is a schematic diagram of the three-dimensional structure at the transverse moving ring;

[0034] Figure 7 yes Figure 6 Enlarged view of a section at point C;

[0035] Figure 8 This is a three-dimensional structural diagram of the electric actuator.

[0036] Figure 9 This is a schematic diagram of the three-dimensional structure of the scraper.

[0037] Figure 10 This is a schematic diagram of the internal three-dimensional structure of the scraper;

[0038] Figure 11 yes Figure 10 Enlarged view of a section at point D.

[0039] In the diagram: 1. Centrifugal pump body; 2. Inlet pipe; 3. Cooling pipe; 4. Inlet connector; 5. Outlet connector; 6. Outlet pipe; 7. Collection box; 8. Support plate; 9. Electric actuator; 10. Housing 1; 11. Motor 1; 12. Worm gear 1; 13. Conveying screw 1; 14. Worm gear 2; 15. Discharge pipe; 16. Vertical conveying pipe; 17. Housing 2; 18. Gear 1; 19. Gear 2; 20. Gear 3; 21. Worm gear 1; 22. Horizontal conveying pipe; 23. Conveying screw 2; 24. Housing 3; 25. Filter plate; 26. Filter holes; 27. Horizontal movement frame; 28. Ejector pin; 29. ​​Slide rod; 30. Spring 1; 31. Spring 2; 32. Worm gear 2; 33. Cam; 34. Extrusion block; 35. Horizontal movement ring; 36. Motor 2; 37. Lead screw; 38. Scraper; 39. Protruding plate; 40. Rotating ring; 41. Cloth scraper; 42. Crushing blade; 43. Sliding plate; 44. Connecting rod; 45. Radial rod; 46. Rewinding shaft; 47. Gear 4; 48. Rack; 49. Spring spring; 50. Contact ball. Detailed Implementation

[0040] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Example 1:

[0042] Please refer to Figures 1-11 The present invention provides a technical solution: a high-efficiency and energy-saving vertical self-cooling centrifugal pump, including a centrifugal pump body 1, with an inlet pipe 2 and an outlet pipe 6 arranged laterally on both sides of the centrifugal pump body 1, and a filter plate 25 for filtering impurities in water is fixedly connected to one side of the inner wall of the inlet pipe 2. The filter plate 25 is provided with a plurality of filter holes 26, and a radially converging impurity removal component for cleaning impurities on the surface of the filter plate 25 is provided on the inlet pipe 2.

[0043] The radially converging impurity removal assembly includes a transverse conveying pipe 22 and multiple scrapers 38. The ends of the scrapers 38 are attached to the end face of the filter plate 25 near the inlet pipe 2, and the scrapers 38 are evenly distributed around the circumference of the filter plate 25. A take-up shaft 46 is rotatably connected to one side of the inner cavity of the scraper 38. A scraper cloth 41 is wound on the take-up shaft 46. The scraper cloth 41 slides through the side wall of the scraper 38, and one edge of the scraper cloth 41 is attached to the surface of the filter plate 25. The end of the scraper cloth 41 is fixedly connected to the outer edge of the other scraper 38. A circular through hole is provided in the middle of the filter plate 25. The opening of the transverse conveying pipe 22 is fixedly connected to the wall of the circular through hole. One end of the inner cavity of the transverse conveying pipe 22 is rotatably connected to the conveying screw 23. The conveying screw 23 passes through the circular through hole. Multiple scrapers 38 and scraping cloth 41 cooperate with each other to form a barrier structure. When the size of the barrier structure is reduced, the scrapers 38 and scraping cloth 41 scrape impurities along the surface of the filter plate 25, so that the impurities are close to the conveying screw 23. The conveying screw 23 rotates so that the impurities enter the interior of the transverse conveying pipe 22 through the circular through hole.

[0044] like Figure 6 and Figure 7 As shown, the water inlet pipe 2 is equipped with a drive assembly for moving the scraper 38;

[0045] The drive assembly includes a transverse ring 35 that is slidably sleeved on one side of the outer wall of the water inlet pipe 2. Multiple radial rods 45 are slidably connected to the transverse ring 35 along the radial direction. The radial rods 45 are slidably passed through a sliding plate 43. The sliding plate 43 is slidably connected to the side wall of the water inlet pipe 2 along the transverse direction. One end of the radial rod 45 located in the inner cavity of the water inlet pipe 2 is fixedly connected to one side of the scraper 38.

[0046] like Figure 6 and Figure 7 As shown, a lead screw 37 is threadedly connected to one side of the transverse moving ring 35. Both ends of the lead screw 37 are rotatably connected to the outer wall of the water inlet pipe 2. A motor 36 is fixedly connected to one side of the outer wall of the water inlet pipe 2. The output end of the motor 36 is fixedly connected to one end of the lead screw 37. A rotating ring 40 is rotatably sleeved on one side of the outer ring of the transverse moving ring 35. A connecting rod 44 is rotatably connected to one end of the radial rod 45. The end of the connecting rod 44 away from the radial rod 45 is rotatably connected to the rotating ring 40. An electric push rod 9 is fixedly connected to one side of the upper end of the transverse moving ring 35. The piston end of the electric push rod 9 is fixedly connected to one end of the top radial rod 45.

[0047] like Figure 11 As shown, a spring 49 is sleeved on one end of the winding shaft 46. One end of the spring 49 is fixedly connected to the end of the winding shaft 46, and the other end is fixedly connected to the inner wall of the scraper 38.

[0048] like Figures 2-5 As shown, the inlet pipe 2 is equipped with a collection assembly for transferring impurities from the transverse conveying pipe 22;

[0049] The collection assembly includes a vertical conveying pipe 16, a collection box 7, and a conveying screw 13. The vertical conveying pipe 16 extends vertically through one side of the top of the water inlet pipe 2, and the opening of the vertical conveying pipe 16 located in the inner cavity of the water inlet pipe 2 is connected to the inner cavity of the horizontal conveying pipe 22. The collection box 7 is fixedly connected to one side of the outer wall of the water inlet pipe 2 by a support plate 8. A housing 17 is fixedly connected to one side of the top of the collection box 7, and a conveying screw 13 is rotatably connected to one side of the bottom of the housing 17. The conveying screw 13 is located in the inner cavity of the vertical conveying pipe 16, and the top side of the vertical conveying pipe 16 is connected to the inner cavity of the collection box 7 through a discharge pipe 15.

[0050] like Figure 3 and Figure 4 As shown, the end of the transverse conveying pipe 22 away from the inlet of the water inlet pipe 2 is fixedly connected to the housing 10. One end of the conveying screw 23 is rotatably inserted through one side of the housing 10, and the end of the conveying screw 23 located in the inner cavity of the housing 10 is fixedly fitted with a worm gear 21. The bottom side of the housing 17 is rotatably connected to a worm 12, the bottom of which is rotatably inserted through the water inlet pipe 2 and the side wall of the housing 10. The end of the worm 12 located in the inner cavity of the housing 10 is provided with helical teeth, which mesh with the worm gear 21. The top side of the housing 17 is fixedly connected to a motor 11, the output end of which is fixedly connected to the upper end of the worm 12. The end of the worm 12 located in the inner cavity of the housing 17 is fixedly fitted with a gear 20. The end of the conveying screw 13 located in the inner cavity of the housing 17 is fixedly connected to a gear 18, which meshes with the gear 20.

[0051] Specifically, in the prior art, when transporting liquids, in order to prevent hard impurities such as sand and metal particles in the liquid from contacting the impeller and causing it to jam or wear, a filter screen is installed at the water inlet to intercept solid impurities in the liquid.

[0052] However, with prolonged use, impurities accumulate on the filter screen's interception surface. These impurities easily cover the filter screen surface, causing blockage and affecting liquid flow efficiency. Maintaining liquid flow by manually cleaning the filter screen periodically is time-consuming and labor-intensive, and can disrupt the normal operation of the centrifugal pump. Furthermore, the filter screen may remain clogged until the next cleaning, making it difficult to guarantee consistent liquid flow efficiency.

[0053] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows:

[0054] Place the centrifugal pump body 1 in a suitable position, and connect the inlet pipe 2 and outlet pipe 6 to the external pipeline through the flange. Then, use the drive motor on the centrifugal pump body 1 to drive its internal impeller to rotate at high speed, thereby realizing the continuous delivery of liquid.

[0055] When the liquid enters through the inlet pipe 2, it passes through multiple filter holes 26 on the filter plate 25, while impurities are intercepted on the surface of the filter plate 25. This prevents hard impurities in the liquid from coming into contact with the impeller, thus avoiding impeller jamming or wear.

[0056] During the liquid transport process, the multiple scrapers 38 in the initial state are located at the edge of the filter plate 25. At this time, the size of the enclosure structure formed by the multiple scrapers 38 and the scraper cloth 41 is at its maximum. The radial rod 45 on one side is driven by the electric push rod 9 to slide on the sliding plate 43. Under the transmission cooperation of the connecting rod 44 and the rotating ring 40, the multiple radial rods 45 can simultaneously drive the multiple scrapers 38 to approach the circular through hole in the center of the filter plate 25. When the multiple scrapers 38 move at the same time, the distance between the scrapers 38 changes, so the scraper cloth 41 will be wound up under the cooperation of the winding shaft 46 and the spring 49. The unwound part of the scraper cloth 41 always remains taut, thereby causing the size of the enclosure structure to continuously shrink. During the shrinkage process of the enclosure structure, the scrapers 38 and the scraper cloth 41 scrape off the impurities attached to the surface of the filter plate 25 and cause the impurities to gather at the circular through hole of the filter plate 25.

[0057] At the same time, motor 11 drives worm gear 12 to rotate, and under the transmission of worm gear 12 and worm wheel 21, the conveying screw 23 rotates. When multiple scrapers 38 reach the edge of the circular through hole, all scraped impurities enter the conveying range of the conveying screw 23, and the impurities will enter the transverse conveying pipe 22 along with the conveying screw 23.

[0058] When the worm gear 12 rotates, it causes the conveying screw 13 to rotate under the transmission of gears 20 and 18. When impurities reach the connection between the horizontal conveying pipe 22 and the vertical conveying pipe 16, they rise under the action of the conveying screw 13. When the impurities reach the discharge pipe 15, they enter the collection box 7 through the discharge pipe 15. At this point, the impurities have been transferred from the surface of the filter plate 25 to the collection box 7, avoiding clogging caused by the residue and accumulation of impurities on the surface of the filter plate 25, and ensuring efficient liquid flow. At the same time, the unobstructed flow channel reduces head loss during liquid transportation and reduces unnecessary power consumption, thus saving energy. Compared with manual periodic cleaning, this solution achieves real-time online maintenance of the filter plate 25, which is both time-saving and labor-saving, and does not interfere with the normal operation of the centrifugal pump. In addition, since the inlet pipe 2 is under negative pressure, and impurities can only enter the collection box 7 by rising vertically along the conveying screw 13, the liquid is difficult to rise with the conveying screw 13 under the action of negative pressure and gravity, thus ensuring that only impurities can be collected in the collection box 7.

[0059] While the above method can achieve real-time cleaning of impurities on the surface of filter plate 25, it requires continuous changes in the size of the enclosure structure. During the shrinking of the enclosure structure, if impurities subsequently introduced with the liquid adhere to the outside of the enclosure structure, the enclosure structure will push these impurities towards the inner wall of the inlet pipe 2 during resetting, thus preventing effective removal of impurities in that area. Therefore, to avoid this problem, before resetting the enclosure structure, motor 2 36 can drive the lead screw 37 to rotate, causing the transverse ring 35 to move laterally. This causes the entire enclosure structure to move laterally away from filter plate 25, creating a gap between the scraper 38, scraper cloth 41, and the surface of filter plate 25. Furthermore, the sliding plate 43 will also slide laterally to adapt to the positional changes of the enclosure structure. Then, the enclosure structure is reset to its initial size and brought into contact with the surface of filter plate 25. This prevents impurities outside the enclosure structure from being pushed towards the inner wall of the inlet pipe 2 during resetting along the surface of filter plate 25, thus avoiding the situation where impurities in that area cannot be effectively removed.

[0060] In addition, the structures installed on the water inlet pipe 2 are all sealed, so the liquid will not leak out through the water inlet pipe 2. The sealing technology is a conventional technical means and can be easily achieved, so it will not be described in detail here.

[0061] Example 2:

[0062] In the above embodiment, although impurities on the surface of the filter plate 25 can be removed by scraping, some solid impurities will seep into the filter holes 26. As the impurities accumulate in the filter holes 26, they will block the filter holes 26, which will also affect the passage of subsequent liquids.

[0063] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows:

[0064] like Figure 5 As shown, the water inlet pipe 2 is equipped with a reciprocating pushing component for pushing out impurities that have seeped into the filter holes 26;

[0065] The reciprocating push assembly includes a transverse frame 27 sleeved on one end of the transverse conveying tube 22. A plurality of ejector pins 28 that match the specifications of the filter holes 26 are fixedly connected to one end face of the transverse frame 27, and each ejector pin 28 is aligned with a filter hole 26.

[0066] like Figures 3-5As shown, a housing 24 is fixedly connected to one side of the inner wall of the water inlet pipe 2. Two sliding rods 29 are slidably inserted through one side of the housing 24. The end of the sliding rod 29 located outside the housing 24 is fixedly connected to one side of the transverse frame 27. The end of the sliding rod 29 located inside the housing 24 is fixedly connected to a pressing block 34. A worm gear 32 and a cam 33 are rotatably connected to one side of the inner wall of the housing 24. The worm gear 32 and the cam 33 are fixedly connected. The cam 33 is in contact with one side of the pressing block 34. The bottom side of the housing 27 is rotatably connected to... A worm gear 214 is connected, with one end of the worm gear 214 rotatably passing through the water inlet pipe 2 and one side of the housing 32. The end of the worm gear 214 located in the inner cavity of the housing 34 is provided with helical teeth, and the helical teeth mesh with the worm wheel 22. A spring 10 is sleeved on one side of the slide rod 29. One end of the spring 10 is fixedly connected to one side of the extrusion block 34, and the other end is fixedly connected to the inner wall of the housing 34. A gear 29 is fixedly sleeved on one end of the worm gear 214 located in the inner cavity of the housing 27. The gear 219 meshes with the gear 18.

[0067] Specifically, the worm gear 14 rotates under the transmission of gear 18 and gear 19, and the cam 33 rotates continuously under the transmission of worm gear 14 and worm wheel 32. The distal and proximal ends of the cam 33 alternately contact the surface of the extrusion block 34. When the proximal end of the cam 33 is in contact with the surface of the extrusion block 34, the ejector pin 28 is located outside the filter hole 26. When the distal end of the cam 33 is in contact with the surface of the extrusion block 34, the ejector pin 28 passes through the filter hole 26, and one end of the ejector pin 28 is flush with one side surface of the filter plate 25. Thus, under the coordinated action of the cam 33, slide rod 29, and spring 30, the transverse frame 27 moves laterally back and forth continuously, thereby pushing out the impurities that have seeped into the filter hole 26. The pushed-out impurities are then gathered to the conveying screw 23 by the action of the enclosure structure and transferred to the collection box 7 for collection. This avoids the situation where some solid impurities seep into the filter hole 26 and block it, thus affecting the subsequent liquid flow.

[0068] Furthermore, the time it takes for the ejector pin 28 to pass through the filter hole 26 is short each time, and the multiple structures used to drive the movement of the ejector pin 28 are reasonably designed, so the impact on the fluidity of the liquid is negligible.

[0069] Example 3:

[0070] In the above embodiments, although the conveying screw 23 and the conveying screw 13 can be used to convey impurities, if the impurities are in the form of clumps or agglomerates, they are prone to jamming during the conveying process, which will affect the conveying effect.

[0071] Therefore, in order to solve the above problems, the working principle of this embodiment is as follows:

[0072] like Figures 9-11 As shown, the scraper 38 is equipped with a convergent and collaborative crushing component;

[0073] The convergent and collaborative crushing assembly includes a gear 47 and a crushing blade 42. The gear 47 and the crushing blade 42 are fixedly connected and rotatably connected to the scraper 38 on the side near the filter plate 25. The gear 47 is located in the inner cavity of the scraper 38, and the crushing blade 42 is located outside the scraper 38. A rack 48 is slidably connected to the inner cavity of the scraper 38. The rack 48 and the gear 47 mesh with each other. A spring 31 is fixedly connected to one end of the rack 48, and the other end of the spring 31 is fixedly connected to the inner wall of the scraper 38. Multiple protruding plates 39 are fixedly connected circumferentially to one side of the inner wall of the water inlet pipe 2. The protruding plates 39 are provided with wavy protrusions. Each protruding plate 39 corresponds to a rack 48. A contact ball 50 is fixedly connected to one end of the rack 48 for contacting the wavy protrusions on the protruding plates 39.

[0074] Specifically, when the scraper 38 moves toward the conveying screw 23, the contact ball 50 contacts the wavy protrusion on the corresponding protrusion plate 39 and is squeezed by the protrusion, causing the spring 31 to be stretched and the rack 48 to slide. Then, under the action of the spring 31, the contact ball 50 will be tightly attached to the wavy protrusion on the protrusion plate 39 and move along the wavy protrusion. The rack 48 will slide back and forth under the undulation of the wavy protrusion, thereby causing the gear 47 and the crushing blade 42 to rotate back and forth. This can cut the impurities while pushing them to move. In addition, when the impurities pushed by the scraper 41 reach the circular through hole, they will also be cut by the crushing blade 42, thereby dispersing the agglomerated and clustered impurities and making them less likely to get stuck during the conveying process, thus ensuring the conveying effect.

[0075] Furthermore, when the enclosure structure is at its smallest size, there is still a certain gap between the crushing blade 42 and the conveying screw 23, and the two will not conflict. In addition, when the enclosure structure is at its smallest size, the contact ball 50 disengages from the protruding plate 39, and the scraper 38 can drive the contact ball 50 to return to its original position around the protruding plate 39. When the enclosure structure shrinks again, the contact ball 50 will re-engage with the protruding plate 39.

[0076] Example 3:

[0077] like Figure 1 As shown, the centrifugal pump body 1 is equipped with a self-cooling component;

[0078] The self-cooling component includes a cooling pipe 3 wrapped around the outer shell of the centrifugal pump body 1. The cooling pipe 3 has two ports, which are connected to the outlet pipe 6 through an inlet connector 4 and an outlet connector 5, respectively.

[0079] Specifically, some of the liquid in the outlet pipe 6 is diverted to the cooling pipe 3 under the guidance of the inlet connector 4 and the outlet connector 5. This diverted liquid flows through the outer casing of the centrifugal pump body 1, carrying away the heat dissipated by the motor driving the impeller, and then flows back into the outlet pipe 6, thereby forming continuous cooling for the motor, effectively preventing the motor from overheating and ensuring its service life.

[0080] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency and energy-saving vertical self-cooling centrifugal pump, comprising a centrifugal pump body (1), wherein an inlet pipe (2) and an outlet pipe (6) are respectively provided transversely on both sides of the centrifugal pump body (1), and a filter plate (25) for filtering impurities in water is fixedly connected to one side of the inner wall of the inlet pipe (2), wherein the filter plate (25) is provided with a plurality of filter holes (26), characterized in that: The water inlet pipe (2) is equipped with a radially converging impurity removal component for cleaning impurities on the surface of the filter plate (25); The radially converging impurity removal assembly includes a transverse conveying pipe (22) and multiple scrapers (38). The ends of the multiple scrapers (38) are attached to the end face of the filter plate (25) near the water inlet pipe (2), and the multiple scrapers (38) are evenly distributed around the filter plate (25). A winding shaft (46) is rotatably connected to one side of the inner cavity of the scraper (38). A scraper cloth (41) is wound on the winding shaft (46). The scraper cloth (41) slides through the side wall of the scraper (38). One edge of the scraper cloth (41) is attached to the surface of the filter plate (25), and the end of the scraper cloth (41) is fixed to the outer edge of the scraper (38) on the other side. The filter plate (25) is provided with a circular through hole in the middle. The opening of the transverse conveying pipe (22) is fixedly connected to the wall of the circular through hole. One end of the inner cavity of the transverse conveying pipe (22) is rotatably connected to the second conveying screw (23). The second conveying screw (23) passes through the circular through hole. Multiple scrapers (38) and scraper cloth (41) cooperate to form a barrier structure. When the size of the barrier structure is reduced, the scrapers (38) and scraper cloth (41) scrape impurities along the surface of the filter plate (25) to make the impurities approach the second conveying screw (23). The second conveying screw (23) rotates to make the impurities enter the interior of the transverse conveying pipe (22) through the circular through hole.

2. The high-efficiency energy-saving vertical self-cooling centrifugal pump according to claim 1, characterized in that: The water inlet pipe (2) is provided with a drive assembly for moving the scraper (38); The drive assembly includes a transverse ring (35) that is slidably sleeved on one side of the outer wall of the water inlet pipe (2). Multiple radial rods (45) are slidably connected to the transverse ring (35) along the radial direction. A sliding plate (43) is slidably passed through the radial rods (45). The sliding plate (43) is slidably connected to the side wall of the water inlet pipe (2) along the transverse direction. One end of the radial rod (45) located in the inner cavity of the water inlet pipe (2) is fixedly connected to one side of the scraper (38).

3. The high-efficiency energy-saving vertical self-cooling centrifugal pump according to claim 2, characterized in that: A lead screw (37) is threaded to one side of the transverse ring (35). Both ends of the lead screw (37) are rotatably connected to the outer wall of the water inlet pipe (2). A motor (36) is fixedly connected to one side of the outer wall of the water inlet pipe (2). The output end of the motor (36) is fixedly connected to one end of the lead screw (37). A rotating ring (40) is rotatably sleeved on one side of the outer ring of the transverse ring (35). A connecting rod (44) is rotatably connected to one end of the radial rod (45). The end of the connecting rod (44) away from the radial rod (45) is rotatably connected to the rotating ring (40). An electric push rod (9) is fixedly connected to one side of the upper end of the transverse ring (35). The piston end of the electric push rod (9) is fixedly connected to one end of the top radial rod (45).

4. The high-efficiency energy-saving vertical self-cooling centrifugal pump according to claim 1, characterized in that: One end of the winding shaft (46) is fitted with a spring (49), one end of which is fixedly connected to the end of the winding shaft (46), and the other end is fixedly connected to the inner wall of the scraper (38).

5. The high-efficiency energy-saving vertical self-cooling centrifugal pump according to claim 1, characterized in that: The inlet pipe (2) is equipped with a collection assembly for transferring impurities from the transverse conveying pipe (22); The collection assembly includes a vertical conveying pipe (16), a collection box (7), and a first conveying screw (13). The vertical conveying pipe (16) extends vertically through one side of the top of the inlet pipe (2), and the opening of the vertical conveying pipe (16) in the inner cavity of the inlet pipe (2) is connected to the inner cavity of the horizontal conveying pipe (22). The collection box (7) is fixedly connected to one side of the outer wall of the inlet pipe (2) by a support plate (8). A second housing (17) is fixedly connected to one side of the top of the collection box (7), and a first conveying screw (13) is rotatably connected to one side of the bottom of the second housing (17). The first conveying screw (13) is located in the inner cavity of the vertical conveying pipe (16), and the top of the vertical conveying pipe (16) is connected to the inner cavity of the collection box (7) through a discharge pipe (15).

6. The high-efficiency energy-saving vertical self-cooling centrifugal pump according to claim 5, characterized in that: The transverse conveying pipe (22) is fixedly connected to a housing (10) at one end away from the inlet of the water inlet pipe (2). One end of the conveying screw (23) is rotatably inserted through one side of the housing (10), and a worm gear (21) is fixedly sleeved at one end of the conveying screw (23) located in the inner cavity of the housing (10). A worm gear (12) is rotatably connected to one side of the bottom of the housing (17). The bottom of the worm gear (12) is rotatably inserted through the water inlet pipe (2) and the side wall of the housing (10), and the worm gear (12) is located in the inner cavity of the housing (10). One end of the inner cavity is provided with a helical tooth, and the helical tooth meshes with the worm gear (21). The top side of the housing (17) is fixedly connected to the motor (11). The output end of the motor (11) is fixedly connected to the upper end of the worm (12). The worm (12) is fixedly fitted with a gear (20) at one end of the inner cavity of the housing (17). The conveying screw (13) is fixedly connected with a gear (18) at one end of the inner cavity of the housing (17). The gear (18) meshes with the gear (20).

7. A high-efficiency, energy-saving vertical self-cooling centrifugal pump according to claim 5, characterized in that: The water inlet pipe (2) is equipped with a reciprocating pushing component for pushing out impurities that have seeped into the filter holes (26); The reciprocating push assembly includes a transverse frame (27) sleeved on one end of the transverse conveying pipe (22). A plurality of pins (28) matching the specifications of the filter holes (26) are fixedly connected to one end face of the transverse frame (27). Each pin (28) is aligned with a filter hole (26).

8. The high-efficiency energy-saving vertical self-cooling centrifugal pump according to claim 7, characterized in that: A housing three (24) is fixedly connected to one side of the inner wall of the water inlet pipe (2). Two sliding rods (29) are slidably inserted through one side of the housing three (24). The end of the sliding rod (29) located outside the housing three (24) is fixedly connected to one side of the transverse frame (27). The end of the sliding rod (29) located inside the housing three (24) is fixedly connected to a pressing block (34). A worm gear two (32) and a cam (33) are rotatably connected to one side of the inner wall of the housing three (24). The worm gear two (32) and the cam (33) are fixedly connected. The cam (33) is in contact with one side of the pressing block (34). The bottom side of the housing two (17) rotates. A second worm gear (14) is connected. One end of the second worm gear (14) is rotatably inserted through the water inlet pipe (2) and the side of the third housing (24). The second worm gear (14) is provided with a helical tooth at one end of the inner cavity of the third housing (24), and the helical tooth meshes with the second worm wheel (32). A first spring (30) is sleeved on one side of the slide rod (29). One end of the first spring (30) is fixedly connected to one side of the extrusion block (34), and the other end is fixedly connected to the inner wall of the third housing (24). A second gear (19) is fixedly sleeved at one end of the second worm gear (14) in the inner cavity of the second housing (17), and the second gear (19) meshes with the first gear (18).

9. The high-efficiency energy-saving vertical self-cooling centrifugal pump according to claim 1, characterized in that: The scraper (38) is equipped with a cohesive crushing component; The aggregated and coordinated crushing assembly includes a gear four (47) and a crushing blade (42). The gear four (47) and the crushing blade (42) are fixedly connected, and both are rotatably connected to the scraper (38) on the side near the filter plate (25). The gear four (47) is located inside the scraper (38), and the crushing blade (42) is located outside the scraper (38). A rack (48) is slidably connected to the inner cavity of the scraper (38), and the rack (48) meshes with the gear four (47). One end of the rack (48) is fixedly connected to a spring (31), and the other end of the spring (31) is fixedly connected to the inner wall of the scraper (38). A number of protruding plates (39) are fixedly connected to one side of the inner wall of the water inlet pipe (2) along the circumferential direction. The protruding plates (39) are provided with wavy protrusions. Each protruding plate (39) corresponds to a rack (48). One end of the rack (48) is fixedly connected to a contact ball (50) for contacting the wavy protrusions on the protruding plates (39).

10. The high-efficiency energy-saving vertical self-cooling centrifugal pump according to claim 1, characterized in that: The centrifugal pump body (1) is equipped with a self-cooling component; The self-cooling component includes a cooling pipe (3) wound around the outer shell of the centrifugal pump body (1). The cooling pipe (3) has two ports, which are connected to the outlet pipe (6) through the inlet connector (4) and the outlet connector (5), respectively.

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