A hydraulic structure of an ultra-deep rotary filter

Abstract

The present invention provides a hydraulic structure of an ultra-deep rotary filter screen, which relates to the field of water conservancy project filtration. It includes a filtering device, a flushing device, and a debris cleaning device. Compared with the prior art, the beneficial effects of the present invention are as follows: The protective net conducts the first filtration on the sundries and floating objects in the water flow. At the same time, while the filter screen and the protective net move in opposite directions, the cleaning brush head on the protective net brushes and cleans the filter screen to keep the filter screen clean and unobstructed, avoiding the blockage of the filter screen caused by the attachment of pollutants to the filter screen. And through the cleaning screw in the debris cleaning device, the medium and large-sized debris on the protective net is stirred, or the rotation speed of the double-output shaft servo motor is increased to make the cleaning screw crush the debris. Finally, after double pressurization by the booster pump and the booster spray nozzle, the filter screen, the cleaning brush head, and the protective net are flushed and cleaned to avoid blockage and affect the filtration efficiency. Moreover, the structure is simple and practical and not easily damaged.

Description

Technical Field

[0001] The present invention relates to the field of water conservancy project filtration, and specifically to a hydraulic structure of an ultra-deep rotary filter screen. Background Art

[0002] A water conservancy project is a project built to control and allocate surface water and groundwater in nature to achieve the purpose of eliminating disasters and bringing benefits, and is also called a water project. A water flow filtration device used in a water conservancy project with a publication number of CN208362016U is retrieved, which includes a cavity. One side of the outside of the cavity is connected with a water inlet, the other side of the outside of the cavity is connected with a water outlet, and the water outlet is connected with the cavity through a connecting pipe. A filter screen is arranged inside the cavity, an adsorption screen is connected inside the filter screen, a sliding groove is arranged on the inner wall of the cavity, and the filter screen is movably connected with the inner wall of the cavity through the sliding groove. One end of the filter screen is detachably connected with the cavity through a fixing block. A flow sensor is arranged on the surface of the water outlet, and inclined plates are connected to both sides of the inner wall of the connecting pipe, and the structure of the inclined plates is an inclined structure.

[0003] However, in the above technology, the water flow is filtered by the filter screen and the adsorption screen. After long-term use, the sundries in the water flow will block the filter screen and the adsorption screen, reducing the efficiency of filtering the water flow, and even possibly resulting in a situation where filtration cannot be carried out. Summary of the Invention

[0004] The problem to be solved by the present invention is to ensure the cleanliness of the filter screen through a protective net and a sundry cleaning device, and avoid blockage of the filter screen.

[0005] To achieve the above object, the technical solution adopted by the present invention is a hydraulic structure of an ultra-deep rotary filter screen, which includes a filtering device, a flushing device and a sundry cleaning device. The filtering device includes an upper cover, a base and a guide rail structure. A drainage channel is arranged on the base to drain the filtered water flow. A filter screen and a protective net are arranged between the upper cover and the base, and the water flow is filtered by the filter screen and the protective net. The characteristics are as follows: The sundry cleaning device is arranged on the top of the upper cover. The sundry cleaning device includes a fixed seat, a double-output shaft servo motor is arranged in the fixed seat, the double-output shaft servo motor is connected with a sleeve rod, a central shaft rod is arranged in the sleeve rod, a bevel gear is arranged on the central shaft rod, a cleaning screw rod is also connected to the sleeve rod. The cleaning screw rod includes a connecting part and a rotating part. The connecting part is connected with the sleeve rod and can rotate following the sleeve rod. The inside of the connecting part is a hollow structure. The bevel gear on the central shaft rod is inserted into the inside of the connecting part, and the bevel gear is in a fixed state of being unable to rotate inside the connecting part. The rotating part is pivotally connected to both ends of the connecting part. A transmission rod is also arranged on the rotating part. One end of the transmission rod with the rotating part is inserted into the inside of the connecting part. The rotating part is meshed and connected with the bevel gear. When the sleeve rod drives the connecting part to rotate, the rotating part rotates following the connecting part and at the same time the rotating part will rotate self.

[0006] Preferably, a scraper is provided on the rotating member. The scraper is arranged along the length direction of the rotating member. The scraper can rotate following the rotating member and can contact the outer surface of the protective net.

[0007] Preferably, the guide rail structure further includes limit sliding ways provided on both the upper cover and the base. The limit sliding ways include a filter screen sliding way and a protective net sliding way. The diameter of the protective net sliding way is larger than that of the filter screen sliding way. Transmission chains are arranged in both the filter screen sliding way and the protective net sliding way. The filter screen and the protective net are respectively connected to the transmission chains in the filter screen sliding way and the protective net sliding way, so that the protective net is located on the periphery of the filter screen, and the mesh number of the protective net is smaller than that of the filter screen.

[0008] Preferably, a submersible motor is provided in the upper cover. A driving gear is connected to the submersible motor. The driving gear is meshed and connected with the transmission chain. The driving gear can drive the transmission chain to move in the limit sliding way. And the driving gear is located between the filter screen and the protective net. One end of the driving gear is meshed with the transmission chain of the filter screen, and the other end of the driving gear is meshed with the transmission chain of the protective net, so that the filter screen and the protective net can move in opposite directions.

[0009] Preferably, the protective net is made of stainless steel material. A cleaning brush head is provided on the protective net. The cleaning brush head can brush and clean the outer surface of the filter screen.

[0010] Preferably, the flushing device includes a water storage tank arranged in the drainage channel. A submersible pump and a booster pump are arranged in the water storage tank. The submersible pump can convey water flow into the booster pump. And a booster water spraying port is connected to the booster pump. The booster water spraying port is arranged between the base and the upper cover. The height of the booster water spraying port is equal to the width of the filter screen.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows: The protective net conducts the first filtration on sundries, floating objects, etc. in the water flow. At the same time, while the filter screen and the protective net move in opposite directions, the cleaning brush head on the protective net brushes and cleans the filter screen, keeping the filter screen clean and unblocked, avoiding the attachment of pollutants to the filter screen resulting in the blockage of the filter screen. And the cleaning screw in the sundries cleaning device cuts medium and large sundries on the protective net or controls the double-output shaft servo motor to increase the rotation speed, so that the cleaning screw crushes the sundries. Finally, the submersible pump in the flushing device conveys the water flow in the water storage tank into the booster pump. After being double-boosted by the booster pump and the booster water spraying port, the filter screen, the cleaning brush head and the protective net are flushed and cleaned, avoiding blockage and affecting the filtration efficiency. And the structure is simple and practical and not easily damaged. Description of the Drawings

[0012] Figure 1 is the overall structure schematic diagram of the present invention;

[0013] Figure 2Schematic cross-sectional structure diagram of the present invention;

[0014] Figure 3 Schematic structure diagram of the drainage channel of the present invention;

[0015] Figure 4 Schematic structure diagram of the filter net of the present invention;

[0016] Figure 5 Schematic cross-sectional structure diagram of the fixing seat of the present invention;

[0017] Figure 6 Schematic structure diagram of the rotating part of the present invention;

[0018] Figure 7 Schematic structure diagram of the limiting slideway of the present invention;

[0019] Among them, 1 - upper cover, 2 - base, 3 - filter net, 4 - protective net, 5 - cleaning brush head, 6 - drainage channel, 7 - submersible pump, 8 - water storage tank, 9 - booster pump, 10 - booster spray nozzle, 11 - central shaft rod, 12 - sleeve rod, 13 - connecting part, 14 - bevel gear, 15 - rotating part, 16 - scraper, 17 - filter net slideway, 1701 - protective net slideway, 18 - driving gear, 19 - deep water motor, 20 - double output shaft servo motor, 21 - transmission rod, 22 - fixing seat. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0022] In the description of this application, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be an electrical connection; it can be a hydraulic oil circuit connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] Referring to Figures 1 to 7 As shown, a hydraulic structure of an ultra-deep rotary filter screen includes a filtering device, a flushing device, and a sundry cleaning device. The filtering device includes an upper cover 1, a base 2, and a guide rail structure. The guide rail structure is located on the upper cover 1. The guide rail structure includes a limit slideway, a transmission chain, and a power gear 18. Limit slideways are provided on both the upper cover 1 and the base 2. The limit slideway includes a filter screen slideway 17 and a guard net slideway 1701. The diameter of the guard net slideway 1701 is larger than that of the filter screen slideway 17. Transmission chains are provided in both the filter screen slideway 17 and the guard net slideway 1701. The transmission chain can move along the path of the limit slideway in the limit slideway. The filter screen 3 is connected to the transmission chain in the filter screen slideway 17, and a guard net 4 is further provided outside the filter screen 3. The guard net 4 is connected to the transmission chain in the guard net slideway 1701. The guard net 4 is made of stainless steel material, and the mesh number of the guard net 4 is smaller than that of the filter screen 3. A cleaning brush head 5 is further provided on the guard net 4. The cleaning brush head 5 is located between the guard net 4 and the filter screen 3, and the cleaning brush head 5 is in contact with the filter screen 3. The power gear 18 is located between the filter screen 3 and the guard net 4, and one end of the power gear 18 is meshed and connected to the transmission chain on the filter screen 3, and the other end of the power gear 18 is meshed and connected to the transmission chain on the guard net 4. A deep-water motor 19 is further provided on the power gear 18. The rotation of the power gear 18 is controlled by the deep-water motor 19. And because one end of the power gear 18 is meshed and connected to the transmission chain of the filter screen 3, and the other end of the power gear 18 is meshed and connected to the transmission chain of the guard net 4, when the transmission gear rotates, the filter screen 3 and the guard net 4 will move in opposite directions, achieving the effect of controlling the simultaneous movement of the filter screen 3 and the guard net 4 with the same power source. Since the cleaning brush head 5 on the guard net 4 is in contact with the filter screen 3, when the filter screen 3 and the guard net 4 move in opposite directions, the cleaning brush head 5 will perform a cleaning and scraping operation on the filter screen 3 to clean the outer surface of the filter screen 3. And the filter screen 3 can use different materials according to different needs, such as stainless steel material, nylon material, polyester fiber material, or other metal materials. The filter screen 3 of different materials can be replaced according to different needs. When the filter screen 3 needs to be replaced, only the filter screen 3 and the transmission chain need to be removed from the filter screen slideway 17. The replacement process is simple and convenient.

[0024] Among them, the upper cover 1 is a closed end, and a drainage channel 6 is provided on the base 2. The drainage channel 6 is arranged inside the filter screen 3. Therefore, if water flow needs to enter the drainage channel 6, it must first pass through the protective net 4 and the filter screen 3 for filtering, and then be discharged through the drainage channel 6. The flushing device is arranged in the drainage channel 6. The flushing device includes a submersible pump 7 and a water storage tank 8. The water storage tank 8 is located inside the drainage channel 6. A part of the water flow filtered by the filter screen 3 will enter the water storage tank 8 for storage for the use of the submersible pump 7, avoiding the situation that the filter screen 3 is blocked and water cannot enter, so that the flushing device has no water source to operate. The submersible pump 7 is fixed at the bottom of the water storage tank 8, facilitating the submersible pump 7 to extract the water flow filtered by the filter screen 3 in the water storage tank 8. And a booster pump 9 is also connected to the submersible pump 7. The submersible pump 7 can directly extract the water flow filtered in the water storage tank 8 and transfer it into the booster pump 9, and the water flow is pressurized by the booster pump 9. And a booster spray nozzle 10 is also provided on the booster pump 9. The booster spray nozzle 10 is arranged between the upper cover 1 and the base 2. The booster spray nozzle 10 is an "I"-shaped flat nozzle. The upper end of the booster spray nozzle 10 is connected to the upper cover 1, and the lower end of the booster spray nozzle 10 is connected to the base 2. Therefore, the height of the booster spray nozzle 10 is the same as the width of the filter screen 3. The water flow is sprayed out through the booster spray nozzle 10 to flush and clean the filter screen 3 and the protective net 4. Since the position of the booster spray nozzle 10 is fixed, when the filter screen 3 and the protective net 4 move, the booster spray nozzle 10 will conduct all-round flushing and cleaning on different positions of the filter screen 3 and the protective net 4, without omission or dead corners that cannot be cleaned.

[0025] The above-mentioned sundries cleaning device is arranged outside the protective net 4. The sundries cleaning device includes a fixed seat 22 and a cleaning screw. The fixed seat 22 is located on the top of the upper cover 1. A central shaft rod 11 is arranged on the fixed seat 22. The central shaft rod 11 is in a fixed state and cannot rotate. A sleeve rod 12 is also arranged on the central shaft rod 11. The sleeve rod 12 can rotate on the central shaft rod 11. And a double-output shaft servo motor 20 is arranged in the fixed seat 22. The output shaft of the double-output shaft servo motor 20 is connected to the sleeve rod 12. The output shaft of the double-output shaft servo motor 20 can control the rotation of the sleeve rod 12. The cleaning screw is connected to the sleeve rod 12. The cleaning screw includes a connecting part 13 and a rotating part 15. The connecting part 13 is connected to the sleeve rod 12 and can rotate following the sleeve rod 12. The inside of the connecting part 13 is a hollow structure. The central shaft rod 11 is inserted into the inside of the connecting part 13. And a bevel gear 14 is arranged inside the connecting part 13. The bevel gear 14 is fixedly connected to the central shaft rod 11, making the bevel gear 14 unable to rotate. A transmission rod 21 is also arranged inside the connecting part 13. The transmission rod 21 meshes with the bevel gear 14. And a rotating part 15 is arranged on the transmission rod 21. The transmission rod 21 can drive the rotating part 15 to rotate. The rotating part 15 is located at both ends of the connecting part 13. A scraper 16 is also arranged on the rotating part 15. The scraper 16 is arranged along the length direction of the rotating part 15. The scraper 16 can rotate following the rotating part 15. And the scraper 16 contacts the protective net 4. When the scraper 16 rotates, it will scrape the outer surface of the protective net 4 to scrape off the seaweed or other floating objects attached to the protective net 4. Through the rotation of the rotating part 15 and the contact between the scraper 16 and the protective net 4, the scraper 16 can cut the floating objects to prevent them from winding around the rotating part 15. When the double-output shaft servo motor 20 operates, the output shaft of the double-output shaft servo motor 20 controls the sleeve rod 12 to drive the connecting part 13 of the cleaning screw to rotate. The rotating part 15 rotates following the connecting part 13. At the same time, since the transmission rod 21 on the rotating part 15 is meshed and connected with the bevel gear 14, and the bevel gear 14 is fixedly connected to the central shaft rod 11 and the central shaft rod 11 cannot rotate, thus the bevel gear 14 is also in a fixed state. When the transmission rod 21 of the rotating part 15 meshes with the bevel gear 14 and rotates around the bevel gear 14, the transmission rod 21 will drive the rotating part 15 to rotate self. Thereby, the scraper 16 on the rotating part 15 also rotates accordingly, scraping and cleaning the sundries outside the protective net 4 while contacting the protective net 4.

[0026] During use, start the deep - water motor 19, so that the deep - water motor 19 controls the rotation of the power gear 18. When the power gear 18 rotates, since the filter screen 3 and the protection net 4 are respectively located on both sides of the power gear 18, and both the filter screen 3 and the protection net 4 are meshed and connected to the power gear 18 through transmission chains, when the power gear 18 rotates, it will control the filter screen 3 and the protection net 4 to move in the opposite direction through the transmission chains. While the protection net 4 made of stainless steel protects the filter screen 3 from the impact of external debris, when the protection net 4 and the filter screen 3 move in the opposite direction, the cleaning brush head 5 on the protection net 4 will brush and clean the filter screen 3, and the cleaning brush head 5 brushes and cleans the outer surface of the filter screen 3; The flushing device cleans the inner surface of the protection net 4, thus realizing the all - round and dead - angle - free cleaning of the filter screen 3. After the filtered water flow is stored in the water storage tank 8 in the flushing device, the water flow is pumped into the booster pump 9 by the submersible pump 7, and then the water flow is sprayed towards the inner surface of the filter screen 3 through the booster water spray port 10 by the booster pump 9. After the water flow is double - pressurized by the booster pump 9 and the booster water spray port 10, it is sprayed towards the inner surface of the filter screen 3 to wash and clean the inner surface of the filter screen 3. After washing the filter screen 3, the water flow will also wash and clean the cleaning brush head 5 and the protection net 4, ensuring that the filter screen 3 will not be blocked and also washing and cleaning the cleaning brush head 5, and also being able to prevent the protection net 4 from being blocked. At the same time, the double - output - shaft servo motor 20 drives the sleeve rod 12 to rotate, so that the rotating part 15 rotates following the connecting part 13. At the same time, since the transmission rod 21 on the rotating part 15 is meshed with the bevel gear 14, and the bevel gear 14 is fixedly connected to the central shaft rod 11 and the central shaft rod 11 cannot rotate, when the transmission rod 21 of the rotating part 15 meshes with the bevel gear 14 and rotates around the bevel gear 14, the transmission rod 21 will drive the rotating part 15 to rotate, making the scraper 16 on the rotating part 15 rotate following the rotating part 15. While the scraper 16 rotates, it contacts the outer surface of the protection net 4, and can effectively cut seaweed or other floating objects. When the rotational speed of the double - output - shaft servo motor 20 increases, the rotational speed of the connecting part 13 will increase, so that the rotational speed of the rotating part 15 driving the scraper 16 will also increase, and it is very easy to crush seaweed or other floating objects; In order to reduce the resistance generated by the scraper 16 when the rotating part 15 rotates, water - permeable holes can also be set on the scraper 16, or the scraper 16 can be set in a threaded shape. In this way, it can effectively protect the filter screen 3, prevent floating objects such as seaweed from adhering to the filter screen 3, affect the filtering efficiency of the filter screen 3, and the equipment has a simple structure and is not easy to be damaged, greatly reducing the production cost and being not easy to be damaged.

[0027] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and 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. A hydraulic structure of an ultra-deep rotary filter, comprising a filtering device, a flushing device and a debris cleaning device, wherein the filtering device comprises an upper cover, a base and a guide rail structure, a drainage channel is provided on the base, and the filtered water flow can be discharged, a filtering net and a protective net are provided between the upper cover and the base, and the filtering net and the protective net are used to filter the water flow, and the characteristics are: The guide rail structure includes a limited position slideway arranged on the upper cover and the base, the limited position slideway includes a filter slideway and a protective screen slideway, the diameter of the protective screen slideway is larger than the diameter of the filter slideway, a transmission chain is arranged in the filter slideway and the protective screen slideway, the filter screen and the protective screen are respectively connected to the transmission chain in the filter slideway and the protective screen slideway, so that the protective screen is located at the periphery of the filter screen, and the mesh number of the protective screen is smaller than the mesh number of the filter screen, the protective screen is made of stainless steel, a cleaning brush head is arranged on the protective screen, and the cleaning brush head can brush and clean the outer surface of the filter screen, a submersible motor is also arranged in the upper cover, a power gear is connected to the submersible motor, the power gear is meshed with the transmission chain, the power gear can drive the transmission chain to move in the limited position slideway, and the power gear is located between the filter screen and the protective screen, one end of the power gear is meshed with the transmission chain of the filter screen, and the other end of the power gear is meshed with the transmission chain of the protective screen, so that the filter screen and the protective screen can move in the opposite direction; The debris cleaning device is arranged on the top of the upper cover, and the debris cleaning device includes a fixed seat, a double-output shaft servo motor is arranged in the fixed seat, the double-output shaft servo motor is connected to the sleeve rod, a central shaft is arranged in the sleeve rod, a parasol gear is arranged on the central shaft, a cleaning screw is also connected to the sleeve rod, the cleaning screw includes a connecting part and a rotating part, the connecting part is connected to the sleeve rod and can rotate with the sleeve rod, the interior of the connecting part is a hollow structure, the parasol gear on the central shaft is inserted into the interior of the connecting part, and the parasol gear is in a fixed state that cannot rotate in the connecting part, the rotating part is axially connected to both ends of the connecting part, and a transmission rod is also arranged on the rotating part, and one end of the transmission rod with the rotating part is inserted into The protective net is flushed by a flushing device, and the flushing device includes a water storage tank arranged in the drainage channel, and a submersible pump and a booster pump are arranged in the water storage tank, and the submersible pump can convey water to the booster pump, and a booster water nozzle is connected to the booster pump, and the booster water nozzle is arranged between the base and the upper cover, and the height of the booster water nozzle is equal to the width of the filter screen.

Images