Ultrasonic self-cleaning filter core structure

Abstract

The application provides an ultrasonic self-cleaning filter core structure, which comprises a shell, a treatment cavity is formed in the interior of the shell, a water inlet pipe and a water outlet pipe are respectively installed on the shell and are communicated with two ends of the treatment cavity, a rotating shaft is installed on one side of the interior of the treatment cavity, an impeller is installed on one side of the rotating shaft, the impeller is located below the water inlet pipe, an installation groove is arranged on the other side of the treatment cavity, a filter core mechanism is installed in the installation groove, and a sealing cover matched with the filter core mechanism is installed on the top of the installation groove. The application has the following beneficial effects: the grouping filtering mode of one group of internal filter cores and two groups of external filter cores is adopted, so that only one group of external filter cores and internal filter cores are used for filtering each time, when the current external filter core needs to be cleaned, the other group of external filter cores is driven to the filtering position to perform filtering work, so that the filtering and cleaning of the filter core do not affect each other.

Description

Technical Field

[0001] This invention relates to an ultrasonic self-cleaning filter element structure, belonging to the technical field of self-cleaning filter element structures. Background Technology

[0002] The filter element is the heart of the filter, as its name suggests. The surface of the filter element that directly faces the wastewater is generally used to filter coarser particles. After prolonged use, surface wear can reduce its self-cleaning function, and impurities can easily accumulate and clog the filter pores, leading to reduced efficiency and significantly shortening the lifespan of the filtration device.

[0003] Chinese patent application number 201710409101.8 discloses a technical solution for a "self-cleaning ultrasonic water purifier". This water purifier uses a cleaning rod located in the middle of each filter element, with each rod connected to an ultrasonic transducer. The high-frequency oscillation generated by the ultrasonic transducer drives the cleaning rod to oscillate at a high frequency, thus cleaning the inside of the filter element. However, in practical applications, besides the inner wall of the filter element being easily clogged by impurities in tap water, the outer wall of the filter element is also easily corroded and clogged by finer impurities and scale, thus affecting the water purification quality and health.

[0004] Therefore, this patent application is far from sufficient to simply perform ultrasonic cleaning from the inside of the filter element; a more thorough improvement is needed. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide an ultrasonic self-cleaning filter structure.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: An ultrasonic self-cleaning filter element structure includes a housing with a processing chamber inside. An inlet pipe and an outlet pipe, connected to both ends of the processing chamber, are respectively installed on the housing. A rotating shaft is installed on one side of the processing chamber, and an impeller is installed on the other side of the rotating shaft, located below the inlet pipe. An installation groove is provided on the other side of the processing chamber, and a filter element mechanism is installed within the installation groove. A sealing cover adapted to the filter element mechanism is installed on the top of the installation groove, and an ultrasonic cleaning mechanism adapted to the filter element mechanism is installed on the side of the installation groove.

[0007] Furthermore, the filter element mechanism includes a filter element bracket rotatably connected to the center of the mounting groove. The bottom of the filter element bracket is connected to the output end of a motor. The motor is mounted on the outer surface of the housing. An internal filter element is provided inside the filter element bracket. Several partition plates are uniformly fixed on the outer circumference of the filter element bracket. A metal mesh is fixed between two adjacent partition plates. A docking groove is formed between the metal mesh, the partition plates, and the filter element bracket. An external filter element is placed in the docking groove. A sliding groove is provided on the top of the filter element bracket. A partition plate is slidably connected to each side of the sliding groove. The top of the partition plate is fixedly connected to the bottom of the sealing cover. A through hole communicating with the docking groove is provided on the filter element bracket. A sealing port is provided at the center of the top of the filter element bracket. A sealing plate is installed in the sealing port.

[0008] Furthermore, a baffle and two baffle strips are fixed on the inner walls of both sides of the mounting groove, respectively. The two baffle strips form a cleaning space with the partition plate and the inner wall of the mounting groove, and the baffle forms a shielding space with the partition plate and the partition.

[0009] Furthermore, the sealing cover includes a fixed cover body, which is fixed to the top of the housing by screws. A threaded groove is formed at the center of the fixed cover body, which is located directly above the sealing plate. A middle cover body is screwed into the threaded groove. A pressing groove is formed at the bottom center of the middle cover body, and a pressing block is pressed into the pressing groove. The pressing block presses against the top of the sealing plate. A snap-fit ​​groove is formed on the side of the fixed cover body, and a side cover body is snapped into the snap-fit ​​groove. The side cover body and the snap-fit ​​groove are connected and fixed by screws. The side cover body presses against the cleaning space directly above it.

[0010] Furthermore, the ultrasonic cleaning mechanism includes a processing box installed on one side of the housing, the processing box communicating with the cleaning space. A fixing plate is provided inside the processing box, dividing the internal space of the processing box into a cleaning chamber and a water purification chamber. Several mounting brackets are fixed inside the cleaning chamber, and ultrasonic generators are mounted on the mounting brackets. The ultrasonic generators are fitted to the outer surface of the metal mesh. Several sets of filter elements are provided inside the water purification chamber, and the filter elements in the same set are connected by bent pipes. The ends of the filter elements at both ends pass through the fixing plate into the cleaning chamber and communicate with the water supply channel. The water supply channel communicates with the inlet of the water pump, and the outlet of the water pump communicates with the transfer box. A return water pipe is installed on the top of the transfer box, and the end of the return water pipe passes through the cleaning chamber and communicates with the nozzle. The nozzle is installed at the inner top of the cleaning chamber.

[0011] Furthermore, the filter element includes a housing and a cover. The cover is sealed and fixed to the top of the housing with screws. A filter frame is installed inside the housing. A flow guide channel is opened in the middle of the filter frame. Several return water blocks are installed inside the flow guide channel. A collection chamber is opened on each side of the filter frame. A sealing plate is installed on the top of the collection chamber. Several feed arc surfaces and flow guide surfaces are staggered on the inner wall of the flow guide channel. The feed arc surface is an arc structure. A feed port communicating with the collection chamber is opened on the feed arc surface.

[0012] Furthermore, the bottom of the collection chamber is provided with a water outlet, the top of the water outlet is equipped with a filter screen, and the inner wall of the outer shell is provided with a number of return water outlets corresponding to the water outlet. One end of the return water outlet is connected to the water outlet, and the other end of the return water outlet is connected to the return water block. The outer surface of the return water block is provided with a number of water outlet holes.

[0013] Furthermore, a pressure relief valve is installed on the transfer box.

[0014] Furthermore, both sides of the outer surface of the partition are provided with sealing gaskets that are adapted to the inner wall of the groove.

[0015] Furthermore, a sealing strip is provided at the junction of the end of the partition and the baffle and the baffle strip.

[0016] The beneficial effects of this invention are: Through the design of the filter element mechanism, a filtration method of one set of internal filter elements and two sets of external filter elements can be formed. Only one set of external filter elements and one set of internal filter elements are used at a time. When the current external filter element needs to be cleaned, the motor drives the clogged external filter element to rotate into the cleaning space for cleaning, while the other set of external filter elements will rotate to the working position to perform filtration. The two do not affect each other.

[0017] With the design of the sealing cover, during normal use, the sealing cover is fixed to the top of the housing to block the top of the mounting slot. When it is necessary to replace the external and internal filter elements, the external filter element located in the cleaning space can be replaced by removing the side cover from the fixed cover. For the internal filter element, the middle cover needs to be removed, and then the pressure block and sealing plate can be removed to remove and replace the internal filter element.

[0018] Through the design of the ultrasonic cleaning mechanism, after filtration for a period of time, the docking mesh groove in use will become clogged with particles. At this time, the motor is started by the external controller, and the motor drives the filter element support to rotate 90 degrees. The filter element support drives the clogged docking mesh groove to rotate into the cleaning space. The docking mesh groove located in the shielding space rotates to the working position to perform filtration. The docking mesh groove located in the cleaning space is then cleaned by the ultrasonic cleaning mechanism. After the docking mesh groove rotates into the cleaning space, the vibrator on the outer surface of the ultrasonic generator fixed in the cleaning space will perform ultrasonic vibration with the metal mesh in the docking mesh groove, causing the particles clogged on the metal mesh to be vibrated off. This avoids direct vibration of the filter element and structural damage. The vibrated particles remain in the cleaning chamber in the treatment box and mix with the water flow to form a mixture again. The mixture enters several sets of filter elements under the action of the water pump to collect particles. The clean water in the mixture is then pumped to the transfer box and delivered to several nozzles located in the cleaning chamber through the return water pipe. The nozzles spray water into the cleaning chamber to combine with the particles and form a mixture, thus realizing the liquid circulation.

[0019] Through the design of the filter elements, the mixed liquid enters several sets of filter elements under the action of the water pump. The mixed liquid flows in the filter frame through the guide channel. Because there are several feed arc surfaces on the inner wall of the guide channel, when the mixed liquid flows, part of it does not contact the feed port, but flows along the arc of the feed arc surface. The other part directly enters the collection chamber through the feed port on the feed arc surface. The water flow in the mixed liquid enters the return water block through the outlet and return water port, and flows back to the guide channel through the water outlet on its outer surface. The return water flow will collide with the flow along the arc of the feed arc surface, forming a mixed liquid again and continuing to flow. After flowing through several filter elements in this way, the particulate matter will be intercepted. The clean water flow is then transported to the transfer box by the water pump and transported to several nozzles located in the cleaning chamber through the return water pipe. The nozzles spray the water flow into the cleaning chamber and combine with the particulate matter to form a mixed liquid. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an ultrasonic self-cleaning filter element according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of an ultrasonic self-cleaning filter element according to the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the structure of an ultrasonic self-cleaning filter element according to the present invention. Figure 3 ; Figure 4 This is a schematic diagram of the structure of an ultrasonic self-cleaning filter element according to the present invention. Figure 4 ; Figure 5 This is a partial structural diagram of an ultrasonic self-cleaning filter element structure according to the present invention; Figure 6 This is a schematic diagram of the connection structure between the housing and the treatment box of an ultrasonic self-cleaning filter element structure according to the present invention; Figure 7 This is a schematic diagram of the connection structure between the filter element support and the partition plate of an ultrasonic self-cleaning filter element structure according to the present invention; Figure 8 This is a schematic diagram of the filter element mechanism of an ultrasonic self-cleaning filter element structure according to the present invention; Figure 9 This is a partial structural diagram of the filter element mechanism of an ultrasonic self-cleaning filter element structure according to the present invention; Figure 10 This is a schematic diagram of the sealing cover structure of an ultrasonic self-cleaning filter element according to the present invention; Figure 11 This is a schematic diagram of the ultrasonic cleaning mechanism structure of an ultrasonic self-cleaning filter element according to the present invention; Figure 12 This is a partial structural diagram of the ultrasonic cleaning mechanism of an ultrasonic self-cleaning filter element according to the present invention. Figure 1 ; Figure 13 This is a partial structural diagram of the ultrasonic cleaning mechanism of an ultrasonic self-cleaning filter element according to the present invention. Figure 2 ; Figure 14 This is a schematic diagram of the filter element structure of an ultrasonic self-cleaning filter element according to the present invention. Figure 1 ; Figure 15 This is a schematic diagram of the filter element structure of an ultrasonic self-cleaning filter element according to the present invention. Figure 2 ; Figure 16 This is a schematic diagram of the filter element structure of an ultrasonic self-cleaning filter element according to the present invention. Figure 3 .

[0022] In the diagram, 1. Shell; 2. Inlet pipe; 3. Outlet pipe; 4. Treatment chamber; 5. Mounting groove; 6. Shaft; 7. Impeller; 8. Filter element support; 9. Slide groove; 10. Partition plate; 11. Metal mesh; 12. Mesh docking groove; 13. Perforation; 14. Partition plate; 15. External filter element; 16. Internal filter element; 17. Sealing plate; 18. Pressure block; 19. Sealing cover; 20. Fixed cover; 21. Threaded groove; 22. Middle cover; 23. Snap-fit ​​groove. 24. Side cover; 25. Baffle; 26. Bar; 27. Cleaning space; 28. Processing box; 29. ​​Fixing plate; 30. Mounting bracket; 31. Ultrasonic generator; 32. Nozzle; 33. Filter element; 34. Water supply channel; 35. Water pump; 36. Transfer box; 37. Return water pipe; 38. Outer shell; 39. Filter frame; 40. Flow guide channel; 41. Return water block; 42. Collection chamber; 43. Feed arc surface; 44. Flow guide surface; 45. Return water port. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below 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.

[0024] Please see Figures 1-16 This invention provides an ultrasonic self-cleaning filter element structure, including a housing 1. A processing chamber 4 is formed inside the housing 1. An inlet pipe 2 and an outlet pipe 3, connected to both ends of the processing chamber 4, are respectively installed on the housing 1. A rotating shaft 6 is installed on one side of the processing chamber 4, and an impeller 7 is installed on the other side of the rotating shaft 6. Wastewater enters the processing chamber 4 inside the housing 1 through the inlet pipe 2. The wastewater impacts the blades of the impeller 7, driving it to rotate. Simultaneously, the impeller 7 evenly redistributes the wastewater, ensuring that the wastewater is evenly transported along the inner wall of the processing chamber 4. The impeller 7 is located below the inlet pipe 2. An installation groove 5 is provided on the other side of the processing chamber 4. A filter element mechanism is installed in the installation groove 5. A sealing cover 19 adapted to the filter element mechanism is installed on the top of the installation groove 5, and an ultrasonic cleaning mechanism adapted to the filter element mechanism is installed on the side of the installation groove 5.

[0025] See Figures 1-9The filter element mechanism includes a filter element bracket 8 rotatably connected to the center of the mounting groove 5. The bottom of the filter element bracket 8 is connected to the output end of a motor. The motor is mounted on the outer surface of the housing 1. An internal filter element 16 is provided inside the filter element bracket 8. Several partition plates 10 are uniformly fixed on the outer circumference of the filter element bracket 8. A metal mesh 11 is fixed between two adjacent partition plates 10. A docking groove 12 is formed between the metal mesh 11, the partition plates 10, and the filter element bracket 8. An external filter element 15 is placed in the docking groove 12. By setting the docking groove 12, the filter element bracket can... Two sets of symmetrical mesh grooves 12 are formed on the outer side of the filter element support 8. Only one set is used at a time, while the other set is in a storage and cleaning state, thus ensuring that the cleaning action of the filter element and the filtration work do not interfere with each other and are carried out independently. The top of the filter element support 8 is provided with a sliding groove 9. A partition 14 is slidably connected to each of the two sides of the inner side of the sliding groove 9. The top of the partition 14 is connected and fixed to the bottom of the sealing cover 19. The sliding groove 9 is designed to facilitate the rotation of the filter element support 8 outside the partition 14. The partition 14 serves to block the cleaning space and the shielding space, preventing the sewage passing through the internal filter element 16 from affecting the outside of the cleaning space and the shielding space. The filter element 15 is shielded. Sealing gaskets adapted to the inner wall of the groove 9 are provided on both sides of the outer surface of the partition plate 14. A through hole 13 communicating with the docking mesh groove 12 is provided on the filter element support 8. A sealing opening is provided at the top center of the filter element support 8, and a sealing plate 17 is installed inside the sealing opening. A baffle 25 and two baffle strips 26 are fixed on the inner walls of both sides of the mounting groove 5, respectively. A cleaning space 27 is formed between the two baffle strips 26, the partition plate 10, and the inner wall of the mounting groove 5. A sealing strip is provided at the junction of the end of the partition plate 14 with the baffle 25 and the baffle strips 26. 5 forms a shielding space between the partition plate 10 and the partition plate 14; through the design of the filter element mechanism, sewage is transported to the docking mesh groove 12 near the impeller 7, and will pass through the metal mesh 11, the outer filter element 15, the perforation 13, the inner filter element 16 on the docking mesh groove 12 in sequence, as well as the outer filter element 15 and the metal mesh 11 on the other side, and finally transported to the outlet pipe 3 for output. When the sewage is filtered, particulate matter will be intercepted by the outer filter element 15 and the metal mesh 11 on its outer surface, while fine debris will be intercepted by the inner filter element 16. The two docking mesh grooves 12 on the other side are located in the cleaning space 27 and the shielding space respectively for safety protection.

[0026] See Figure 10The sealing cover 19 includes a fixed cover body 20, which is fixed to the top of the housing 1 by screws. A threaded groove 21 is formed at the center of the fixed cover body 20, directly above the sealing plate 17. A middle cover body 22 is screwed into the threaded groove 21. A pressing groove is formed at the bottom center of the middle cover body 22, and a pressing block 18 is pressed into the pressing groove. The pressing block 18 presses against the top of the sealing plate 17. In this configuration, the pressing block 18 and the pressing groove only serve a sealing function, while the middle cover body 22, screwed to the fixed cover body 20, serves to press and fix the sealing plate 17. The pressing block 18 provides a uniform pressing effect. To improve the sealing effect, the fixed cover 20 has a snap-fit ​​groove 23 on its side, and a side cover 24 is snapped into the snap-fit ​​groove 23. The side cover 24 and the snap-fit ​​groove 23 are fixed together by screws, and the side cover 24 is pressed on top of the cleaning space 27. When the external filter element 15 in the mesh groove 12 and the internal filter element 16 at the center of the filter element bracket 8 are blocked and cannot be used, the external filter element 15 located in the cleaning space 27 can be replaced by removing the side cover 24 from the fixed cover 20. For the internal filter element 16, the middle cover 22 needs to be removed, and then the pressure block 18 and the sealing plate 17 need to be removed to facilitate the removal and replacement of the internal filter element 16.

[0027] See Figures 11-13The ultrasonic cleaning mechanism includes a processing box 28 installed on one side of the housing 1. The processing box 28 is connected to the cleaning space 27. A fixing plate 29 is provided inside the processing box 28, which divides the internal space of the processing box 28 into a cleaning chamber and a water purification chamber. Several mounting brackets 30 are fixed inside the cleaning chamber, and ultrasonic generators 31 are mounted on the mounting brackets 30. The ultrasonic generators 31 are fitted to the outer surface of the metal mesh 11. Several sets of filter elements 33 are provided inside the water purification chamber. Several filter elements 33 in the same set are connected by bent pipes. The ends of the filter elements 33 at both ends are connected. The fixed plate 29 extends into the cleaning chamber and communicates with the water supply channel 34. A filter screen is installed at the connection between the water supply channel 34 and the filter element 33. The other end of the water supply channel 34 is connected to the inlet of the water pump 35, and the outlet of the water pump 35 is connected to the transfer box 36. A pressure relief valve is installed on the transfer box 36, and a return water pipe 37 is installed on the top of the transfer box 36. The end of the return water pipe 37 extends into the cleaning chamber and communicates with the nozzle 32. The nozzle 32 is installed at the top of the cleaning chamber. A water level sensor and a water supply pipe are installed on the inner wall of the cleaning chamber. When the water level inside the cleaning chamber is lower than a set value, a water supply sensor is installed. When the water level is set, the water supply pipe automatically replenishes water to ensure a stable water level. After filtration for a period of time, the docking mesh trough 12 in use will become clogged with particles. At this time, the motor is started by the external controller, and the motor drives the filter element support 8 to rotate 90 degrees. The filter element support 8 drives the clogged docking mesh trough 12 to rotate into the cleaning space 27. The docking mesh trough 12 located in the shielding space rotates to the working position to perform filtration. The docking mesh trough 12 located in the cleaning space 27 will be cleaned by the ultrasonic cleaning mechanism. After the docking mesh trough 12 rotates into the cleaning space 27, the vibrator on the outer surface of the ultrasonic generator 31 fixed in the cleaning space 27 will... The metal mesh 11 in the docking groove 12 is subjected to ultrasonic vibration, which dislodges the particles clogging the metal mesh 11, avoiding structural damage caused by direct vibration of the filter element. The dislodged particles remain in the cleaning chamber of the treatment box 28 and mix with the water to form a mixture again. The mixture enters several sets of filter elements 33 under the action of the water pump 35 to collect particles. The clean water in the mixture is then transported to the transfer box 36 by the water pump 35 and then to several nozzles 32 located in the cleaning chamber through the return water pipe 37. The nozzles 32 spray water into the cleaning chamber to combine with the particles and form a mixture, thus realizing the liquid circulation.

[0028] See Figures 14-16The filter element 33 includes a housing 38 and a cover. The cover is fixed to the top of the housing 38 by screws. A filter frame 39 is installed inside the housing 38. A flow guide channel 40 is opened in the middle of the filter frame 39. Several return water blocks 41 are installed inside the flow guide channel 40. A collection chamber 42 is opened on each side of the filter frame 39. A sealing plate is installed on the top of the collection chamber 42. When it is necessary to clean the collection chamber 42, simply open the sealing plate to empty the particles in the collection chamber 42. For ease of cleaning, the inner wall of the flow channel 40 is provided with several interlaced feeding arc surfaces 43 and flow guiding surfaces 44. The feeding arc surfaces 43 are arc-shaped and have feeding ports that communicate with the collection chamber 42. The bottom of the collection chamber 42 has a water outlet, and a filter screen is installed on the top of the water outlet. The inner wall of the outer shell 38 has several return water outlets 45 corresponding to the water outlets. One end of each return water outlet 45 is connected to the water outlet, and the other end of each return water outlet 45 is connected to the water outlet. The water return block 41 is connected to the water return block 41, and the outer surface of the water return block 41 has several water outlet holes. The mixed liquid enters several sets of filter elements 33 under the action of the water pump 35. The mixed liquid flows in the filter frame 39 through the guide channel 40. Because the inner wall of the guide channel 40 has several feed arc surfaces 43, when the mixed liquid flows, part of it does not contact the feed port, but flows along the arc of the feed arc surface 43. The other part directly enters the collection chamber 42 through the feed port on the feed arc surface 43. The water in the mixed liquid flows through the water outlet. The water enters the return water block 41 through the water outlet on its outer surface and flows back to the guide channel 40. The returning water will collide with the flow along the feed arc surface 43, forming a mixture that continues to flow. After passing through several filter elements 33, the particles will be trapped. The clean water is then pumped to the transfer box 36 by the water pump 35 and delivered to several nozzles 32 located in the cleaning chamber through the return water pipe 37. The nozzles 32 spray water into the cleaning chamber and combine with the particles to form a mixture.

[0029] The circuits and electronic components, modules and controllers, or the heat dissipation holes and maintenance doors in the space of the adapted electrical equipment are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this application does not involve improvements to software and methods or heat dissipation and maintenance.

[0030] In use, wastewater enters the treatment chamber 4 inside the housing 1 through the inlet pipe 2. The wastewater impacts the blades of the impeller 7, driving it to rotate. Simultaneously, the impeller 7 redistributes the wastewater evenly, ensuring it is uniformly transported along the inner wall of the treatment chamber 4. The wastewater is transported to the docking mesh groove 12 near the impeller 7, and then passes through the outer filter element 15 and inner filter element 16 on the filter element support 8, exiting through the symmetrical docking mesh groove 12 on the other side to the outlet pipe 3 for output. During filtration, particulate matter is trapped by the outer filter element 15 and its outer metal mesh 11, while finer impurities are trapped by the inner filter element 16. The two docking mesh grooves 12 on the other side... Safety protection is provided in the cleaning space 27 and the shielding space. After filtration for a period of time, the docking mesh 12 in use will become clogged with particles. At this time, the motor is started by the external controller, and the motor drives the filter element support 8 to rotate 90 degrees. The filter element support 8 drives the clogged docking mesh 12 to rotate into the cleaning space 27, while the docking mesh 12 in the shielding space rotates to the working position to perform filtration. The docking mesh 12 in the cleaning space 27 is then cleaned by the ultrasonic cleaning mechanism. After the docking mesh 12 rotates into the cleaning space 27, the ultrasonic generator 31 fixedly installed in the cleaning space 27 vibrates on its outer surface. The filter element undergoes ultrasonic vibration with the metal mesh 11 in the docking groove 12, causing the particles clogging the metal mesh 11 to be dislodged. This avoids direct vibration of the filter element and prevents structural damage. The dislodged particles remain in the cleaning chamber of the treatment tank 28 and mix with the water flow to form a mixture again. The mixture is then pumped by the water pump 35 into several sets of filter elements 33. The mixture flows through the guide channel 40 within the filter frame 39. Because the inner wall of the guide channel 40 has several feed arc surfaces 43, part of the mixture does not contact the feed inlet but flows along the arc of the feed arc surface 43, while the other part flows directly through the feed arc surface 43. The feed inlet enters the collection chamber 42. The water in the mixture enters the return water block 41 through the outlet and return water inlet 45, and flows back to the guide channel 40 through the outlet holes on its outer surface. The returning water will collide with the flow along the feed arc surface 43, forming a mixture again and continuing to flow. After flowing through several filter elements 33, the particles will be trapped. The clean water is then transported to the transfer box 36 by the water pump 35 and transported to several nozzles 32 located in the cleaning chamber through the return water pipe 37. The nozzles 32 spray water into the cleaning chamber and combine with the particles to form a mixture, thus realizing the liquid circulation flow.

[0031] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An ultrasonic self-cleaning filter element structure, characterized in that, The device includes a housing (1), which has a processing chamber (4) inside. The housing (1) is equipped with an inlet pipe (2) and an outlet pipe (3) that are connected to both ends of the processing chamber (4). The processing chamber (4) has a rotating shaft (6) installed on one side, and an impeller (7) installed on one side of the rotating shaft (6). The impeller (7) is located below the inlet pipe (2). The processing chamber (4) has an installation groove (5) on the other side. A filter element mechanism is installed in the installation groove (5). A sealing cover (19) adapted to the filter element mechanism is installed on the top of the installation groove (5). An ultrasonic cleaning mechanism adapted to the filter element mechanism is installed on the side of the installation groove (5).

2. The ultrasonic self-cleaning filter element structure according to claim 1, characterized in that, The filter element mechanism includes a filter element bracket (8) rotatably connected to the center of the mounting groove (5). The bottom of the filter element bracket (8) is connected to the output end of a motor. The motor is mounted on the outer surface of the housing (1). An internal filter element (16) is provided inside the filter element bracket (8). Several partition plates (10) are uniformly fixed on the outer circumference of the filter element bracket (8). A metal mesh (11) is fixed between two adjacent partition plates (10). The metal mesh (11), the partition plates (10), and the filter element bracket (8) are connected together. A docking groove (12) is formed between the filter elements. An external filter element (15) is placed in the docking groove (12). A sliding groove (9) is provided on the top of the filter element support (8). A partition (14) is slidably connected to the two sides inside the sliding groove (9). The top of the partition (14) is connected and fixed to the bottom of the sealing cover (19). A through hole (13) communicating with the docking groove (12) is provided on the filter element support (8). A sealing port is provided at the center of the top of the filter element support (8). A sealing plate (17) is installed in the sealing port.

3. The ultrasonic self-cleaning filter element structure according to claim 2, characterized in that, A baffle (25) and two baffle strips (26) are fixed on the inner walls of both sides of the mounting groove (5). The two baffle strips (26) form a cleaning space (27) between the partition plate (10) and the inner wall of the mounting groove (5). The baffle (25) forms a shielding space between the partition plate (10) and the partition plate (14).

4. The ultrasonic self-cleaning filter element structure according to claim 3, characterized in that, The sealing cover (19) includes a fixed cover body (20), which is fixed to the top of the housing (1) by screws. A threaded groove (21) is provided at the center of the fixed cover body (20), which is located directly above the sealing plate (17). A middle cover body (22) is screwed into the threaded groove (21). A pressing groove is provided at the bottom center of the middle cover body (22), and a pressing block (18) is pressed into the pressing groove. The pressing block (18) is pressed into the top of the sealing plate (17). A snap-fit ​​groove (23) is provided on the side of the fixed cover body (20), and a side cover body (24) is snapped into the snap-fit ​​groove (23). The side cover body (24) and the snap-fit ​​groove (23) are connected and fixed by screws. The side cover body (24) is pressed directly above the cleaning space (27).

5. The ultrasonic self-cleaning filter element structure according to claim 4, characterized in that, The ultrasonic cleaning mechanism includes a processing box (28) installed on one side of the housing (1). The processing box (28) is connected to the cleaning space (27). A fixing plate (29) is provided inside the processing box (28). The fixing plate (29) divides the internal space of the processing box (28) into a cleaning chamber and a water purification chamber. Several mounting brackets (30) are fixed inside the cleaning chamber. An ultrasonic generator (31) is installed on the mounting bracket (30). The ultrasonic generator (31) is fitted to the outer surface of the metal mesh (11). Several sets of filter elements (33) are provided inside the water purification chamber. Several sets of filter elements (33) in the same group are connected to each other. 3) The filter elements (33) at both ends are connected by a bend in the pipe. The ends of the filter elements (33) at both ends pass through the fixed plate (29) to the cleaning chamber and are connected to the water supply channel (34). A filter screen is installed at the connection between the water supply channel (34) and the filter elements (33). The other end of the water supply channel (34) is connected to the inlet of the water pump (35). The outlet of the water pump (35) is connected to the transfer box (36). A return water pipe (37) is installed on the top of the transfer box (36). The end of the return water pipe (37) passes through the cleaning chamber and is connected to the nozzle (32). The nozzle (32) is installed on the top of the cleaning chamber.

6. The ultrasonic self-cleaning filter element structure according to claim 5, characterized in that, The filter element (33) includes a housing (38) and a cover. The cover is fixed to the top of the housing (38) by screws. A filter frame (39) is installed inside the housing (38). A flow guide channel (40) is opened in the middle of the filter frame (39). Several return water blocks (41) are installed inside the flow guide channel (40). A collection chamber (42) is opened on each side of the filter frame (39). A sealing plate is installed on the top of the collection chamber (42). Several feed arc surfaces (43) and flow guide surfaces (44) are arranged alternately on the inner wall of the flow guide channel (40). The feed arc surface (43) is an arc structure. A feed inlet connected to the collection chamber (42) is opened on the feed arc surface (43).

7. The ultrasonic self-cleaning filter element structure according to claim 6, characterized in that, The bottom of the collection chamber (42) is provided with a water outlet, and a filter screen is installed on the top of the water outlet. Several return water inlets (45) corresponding to the water outlet are provided on the inner wall of the outer shell (38). One end of the return water inlet (45) is connected to the water outlet, and the other end of the return water inlet (45) is connected to the return water block (41). Several water outlet holes are provided on the outer surface of the return water block (41).

8. The ultrasonic self-cleaning filter element structure according to claim 7, characterized in that, The transfer box (36) is equipped with a pressure relief valve.

9. The ultrasonic self-cleaning filter element structure according to claim 8, characterized in that, Both sides of the outer surface of the partition (14) are provided with sealing gaskets that are compatible with the inner wall of the groove (9).

10. The ultrasonic self-cleaning filter element structure according to claim 9, characterized in that, A sealing strip is provided at the junction of the end of the partition (14) with the baffle (25) and the baffle (26).

Images