A filter device with a recirculating backwash

Abstract

The utility model discloses a filter device of circulating backwash, including filter casing, install a set of bearing seat in the inner chamber of filter casing upper end, bearing seat is sealed with a set of filter core rotation connection, and the rotation action can be realized to filter core through drive assembly, and cooperate transmission assembly and drive cleaning brush rotation, the utility model centrifugal force throws out high -speed water flow, and the impact force of impurity is greatly promoted, and the mechanical cleaning of cooperation cleaning brush, under double effect, can more efficiently remove strong viscosity, firmly attached contaminant and deep pore small impurity, and backwash efficiency improves obviously, and high -efficient backwash reduces backwash frequency and time, and water flow energy consumption is reduced, simultaneously, the filter core is because clean thoroughly, and the service life is extended, and the frequency of replacement is reduced, and the overall operation cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of backwashing technology, specifically to a filtration device for circulating backwashing. Background Technology

[0002] In modern industrial production, drinking water treatment, chemical and pharmaceutical fields, filtration devices are core equipment for ensuring fluid purity and maintaining stable system operation. Their performance directly affects product quality and production efficiency. As filtration continues, impurities accumulate on the surface of the filter medium and embed themselves in the internal pores, causing a sharp increase in filtration resistance, a significant decrease in filtration flow, and difficulty in guaranteeing filtration accuracy. Therefore, efficient backwashing technology has become the key to maintaining the good performance of filtration devices.

[0003] Traditional backwashing filters generally use reverse water flow to flush impurities off the filter media. However, the impact force of the reverse water flow is limited. It is difficult to effectively remove sticky and firmly attached pollutants, as well as tiny impurities that are blocked in the deep pores of the filter media. Therefore, a circulating backwashing filter needs to be designed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a filtration device with circulating backwashing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cyclic backwashing filtration device, comprising a filter housing, wherein a set of bearing seats is installed in the inner cavity at the upper end of the filter housing, the bearing seats are rotatably connected to a set of filter elements, and the filter elements can be rotated by a drive assembly, and in conjunction with a transmission assembly, drive the cleaning brush to rotate.

[0006] Preferably, the drive assembly includes a protective cover, a motor, a first gear, a second gear, and a first water pipe. A set of the protective covers is installed on the top of the filter housing. A set of the motors is fixed in the inner cavity of the protective covers. The output end of the motors is connected to a set of the first gears. The first gears mesh with the second gears coaxially arranged on the first water pipe to form a primary acceleration transmission structure. The second gears are also connected to the transmission assembly. The first water pipe is connected to the filter element.

[0007] Preferably, the transmission assembly includes a transmission shaft and a third gear. The bearing housing is rotatably connected to a set of the transmission shafts. One end of the transmission shafts is connected to a set of the third gears. The third gears mesh with the second gears to form a first-stage reduction structure. The other end of the transmission shafts is connected to the cleaning brush.

[0008] Preferably, the first water pipe is rotatably connected to the second water pipe via a swivel joint, and the second water pipe penetrates the protective cover and is fixedly connected to it.

[0009] Preferably, a set of water inlet pipes are connected to the outer wall of the lower end of the filter housing, a set of sewage outlet pipes are provided at the center of the bottom end of the filter housing, and a support member is welded to the bottom end of the filter housing.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The high-speed water flow generated by centrifugal force in this utility model greatly enhances the impact force on impurities. Combined with the mechanical cleaning of the cleaning brush, the dual action can more efficiently remove highly viscous and firmly attached pollutants as well as tiny impurities in deep pores. The backwashing efficiency is significantly improved. The efficient backwashing reduces the number of backwashing times and time, and reduces water flow energy consumption. At the same time, the filter element is thoroughly cleaned, which extends its service life, reduces the replacement frequency, and lowers the overall operating cost.

[0012] 2. The first-stage acceleration transmission structure of this utility model enables the filter element to quickly reach high speed, enhances centrifugal force, and allows purified water to be thrown out with greater speed and impact, effectively flushing impurities on the surface and in the pores of the filter element, greatly improving backwashing efficiency and shortening backwashing time. By adjusting the motor speed and gear ratio, the speed of the filter element and cleaning brush can be flexibly controlled to adapt to different filtration scenarios and impurity types, and meet diverse backwashing needs.

[0013] 3. The acceleration structure of the drive component and the deceleration structure of the transmission component of this utility model work together to enable the filter element to achieve a high rotation speed to enhance the centrifugal backwashing effect, while allowing the cleaning brush to work at an appropriate speed to avoid damage to the filter element due to excessive speed. This achieves reasonable power distribution, improves cleaning efficiency and quality, and the rotating joint ensures that water flow can be stably input from the fixed second water pipe when the first water pipe rotates at high speed. This maintains the continuity and stability of the centrifugal force that ejects clean water during the backwashing process, ensuring the backwashing effect. By adjusting the motor speed, gear ratio, and reduction ratio of the transmission component, the rotation speed of the filter element and the cleaning brush can be flexibly controlled to adapt to the different characteristics of impurities in different filtration scenarios, meet diverse backwashing needs, and improve the versatility of the device.

[0014] 4. In this utility model, the fluid to be filtered enters the device from the lower outer wall of the filter housing through the inlet pipe. Under pressure, it flows to the filter element. After being filtered by the filter element, the pure fluid flows out. During the backwashing process, impurities that are loosened by the cleaning brush and washed down by the centrifugal water flow and the reverse water flow are discharged from the bottom of the filter housing through the drain pipe, thus completing the impurity cleaning. The support is welded to the bottom of the filter housing, providing a stable support for the entire filtration device and keeping it stable during filtration, backwashing and other operations, preventing shaking and displacement. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the overall structure of this utility model;

[0016] Figure 2 This is an exploded cross-sectional view of the overall structure of this utility model;

[0017] Figure 3 This is a side-view diagram of the overall structure of this utility model;

[0018] Figure 4 This is a side-view diagram of the overall structure of this utility model.

[0019] In the diagram: 1. Filter housing; 2. Bearing seat; 3. Filter element; 4. Cleaning brush; 5. Protective cover; 6. Motor; 7. First gear; 8. Second gear; 9. First water pipe; 10. Drive shaft; 11. Third gear; 12. Rotary joint; 13. Second water pipe; 14. Inlet pipe; 15. Drain pipe; 16. Support component. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Please refer to Figure 1-4 As shown, this utility model provides a filtration device for circulating backwashing, including a filter housing 1. A set of bearing seats 2 are installed in the inner cavity at the upper end of the filter housing 1. The bearing seats 2 are rotatably connected to a set of filter elements 3 in a sealed manner. The filter elements 3 can be rotated by a drive component and drive the cleaning brush 4 to rotate in conjunction with a transmission component.

[0023] During filtration, fluid flows into the filter housing 1 and is filtered through the filter element 3. Impurities are trapped on the surface and pores of the filter element. During the backwashing stage, the drive assembly causes the filter element 3 to rotate at high speed under the support of the bearing seat 2. The filtered water inside the filter element is thrown out at high speed along the radial direction of the filter element due to centrifugal force. The strong centrifugal water flow impacts the inner and outer surfaces of the filter element, initially washing away and loosening the attached impurities. At the same time, the filter element 3 drives the cleaning brush 4 to rotate through the transmission assembly. The cleaning brush 4 mechanically scrapes the surface and pores of the filter element 3 to further remove stubborn impurities. The loosened and scraped impurities are flushed out of the filter housing 1 under the combined action of the centrifugal water flow and the reverse water flow.

[0024] The high-speed water flow generated by centrifugal force significantly increases the impact force on impurities. Combined with the mechanical cleaning of cleaning brush 4, the dual action can more efficiently remove sticky and firmly attached pollutants as well as tiny impurities in deep pores. The backwashing efficiency is significantly improved. The efficient backwashing reduces the number of backwashing times and time, and reduces water flow energy consumption. At the same time, the filter element 3 is thoroughly cleaned, which extends its service life, reduces the replacement frequency, and lowers the overall operating cost.

[0025] Specifically, the drive assembly includes a protective cover 5, a motor 6, a first gear 7, a second gear 8, and a first water pipe 9. A set of protective covers 5 is installed on the top of the filter housing 1. A set of motors 6 is fixed inside the cavity of the protective cover 5. A set of first gears 7 is connected to the output end of the motor 6. The first gears 7 mesh with the second gears 8, which are coaxially arranged on the first water pipe 9, to form a first-stage acceleration transmission structure. The second gears 8 are also connected to the transmission assembly. The first water pipe 9 is connected to the filter element 3.

[0026] Backwashing begins when motor 6 starts, and its output drives the first gear 7 to rotate at high speed. Since the first gear 7 meshes with the second gear 8, which is coaxially mounted on the first water pipe 9, to form a first-stage acceleration transmission structure, when the first gear 7 transmits power to the second gear 8, the speed of the second gear 8 increases, thereby driving the first water pipe 9 to rotate at high speed. The first water pipe 9 is connected to the filter element 3, which drives the filter element 3 to rotate at high speed under the support of the bearing seat 2. The backwashing is achieved by using centrifugal force to throw out the clean water.

[0027] The primary acceleration transmission structure enables the filter element 3 to quickly reach high speed, enhancing centrifugal force and allowing purified water to be thrown out with greater speed and impact, effectively flushing impurities on the surface and in the pores of the filter element, significantly improving backwashing efficiency and shortening backwashing time. By adjusting the speed of the motor 6 and the gear ratio, the speed of the filter element 3 and the cleaning brush 4 can be flexibly controlled to adapt to different filtration scenarios and impurity types, meeting diverse backwashing needs.

[0028] The transmission assembly includes a transmission shaft 10 and a third gear 11. The bearing housing 2 is rotatably connected to a set of transmission shafts 10. One end of the transmission shaft 10 is connected to a set of third gears 11. The third gear 11 meshes with the second gear 8 to form a first-stage reduction structure. The other end of the transmission shaft 10 is connected to the cleaning brush 4. The first water pipe 9 is rotatably connected to the second water pipe 13 through a rotating joint 12. The second water pipe 13 penetrates the protective cover 5 and is fixedly connected to it.

[0029] The high-speed rotating second gear 8 meshes with the third gear 11 to form a first-stage reduction structure, which transmits power to the drive shaft 10, reduces the speed and increases the torque. The other end of the drive shaft 10 is connected to the cleaning brush 4, which drives the cleaning brush 4 to rotate at a suitable speed to mechanically clean the surface and pores of the filter element 3. At the same time, the first water pipe 9 is sealed and rotated to the fixed second water pipe 13 through the rotating joint 12, ensuring that the water flow can still flow steadily when the first water pipe 9 rotates at high speed, and continuously provide clean water for backwashing.

[0030] The acceleration structure of the drive component and the deceleration structure of the transmission component work together to enable the filter element 3 to achieve a high speed to enhance the centrifugal backwashing effect, while allowing the cleaning brush 4 to work at an appropriate speed to avoid damage to the filter element due to excessive speed. This achieves reasonable power distribution and improves cleaning efficiency and quality. The rotating joint 12 ensures that when the first water pipe 9 rotates at high speed, the water flow can be stably input from the fixed second water pipe 13, maintaining the continuity and stability of the centrifugal force to throw out clean water during the backwashing process and ensuring the backwashing effect. By adjusting the speed of the motor 6, the gear ratio, and the reduction ratio of the transmission component, the speed of the filter element 3 and the cleaning brush 4 can be flexibly controlled to adapt to the differences in the characteristics of impurities under different filtration scenarios, meet diverse backwashing needs, and improve the versatility of the device.

[0031] Among them: a set of water inlet pipes 14 are connected to the outer wall of the lower end of the filter housing 1, a set of sewage pipes 15 are set at the center of the bottom end of the filter housing 1, and a support 16 is welded to the bottom end of the filter housing 1.

[0032] The fluid to be filtered enters the device from the lower outer wall of the filter housing 1 through the inlet pipe 14. Under pressure, it flows to the filter element 3. After being filtered by the filter element 3, the pure fluid flows out. During the backwashing process, the impurities that are loosened by the cleaning brush 4 and washed down by the centrifugal water flow and the reverse water flow are discharged from the bottom of the filter housing 1 through the drain pipe 15, thus completing the impurity cleaning. The support 16 is welded to the bottom of the filter housing 1 to provide a stable support for the entire filtration device, so that it remains stable during filtration, backwashing and other operations, and avoids shaking and displacement.

[0033] Working principle: When backwashing begins, motor 6 starts, and its output drives the first gear 7 to rotate at high speed. Since the first gear 7 meshes with the second gear 8, which is coaxially set on the first water pipe 9, to form a first-stage acceleration transmission structure, when the first gear 7 transmits power to the second gear 8, the speed of the second gear 8 increases, thereby driving the first water pipe 9 to rotate at high speed. The first water pipe 9 is connected to the filter element 3, which drives the filter element 3 to rotate at high speed under the support of the bearing seat 2. The centrifugal force is used to throw out clean water to achieve backwashing. The high-speed rotating second gear 8 meshes with the third gear 11 to form a first-stage reduction structure, which transmits power to the transmission shaft 10, reduces the speed and increases the torque. The other end of the transmission shaft 10 is connected to the cleaning brush 4, which drives the cleaning brush 4 to rotate at a suitable speed to mechanically clean the surface and pores of the filter element 3. At the same time, the first water pipe 9 is sealed and rotated to the fixed second water pipe 13 through the rotating joint 12, ensuring that the water flow can still flow steadily when the first water pipe 9 is rotating at high speed, and continuously providing clean water for backwashing.

[0034] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A circulating backwashing filter device, comprising a filter housing (1), characterized in that: A set of bearing seats (2) is installed in the inner cavity at the upper end of the filter housing (1). The bearing seats (2) are sealed and rotatably connected to a set of filter elements (3). The filter elements (3) can be rotated by the drive assembly and drive the cleaning brush (4) to rotate in conjunction with the transmission assembly.

2. The filtration device with circulating backwashing according to claim 1, characterized in that: The drive assembly includes a protective cover (5), a motor (6), a first gear (7), a second gear (8), and a first water pipe (9). A set of the protective cover (5) is installed on the top of the filter housing (1). A set of the motor (6) is fixed in the inner cavity of the protective cover (5). A set of the first gear (7) is connected to the output end of the motor (6). The first gear (7) meshes with the second gear (8) which is coaxially arranged on the first water pipe (9) to form a first-stage acceleration transmission structure. The second gear (8) is also connected to the transmission assembly. The first water pipe (9) is connected to the filter element (3).

3. The filtration device with circulating backwashing according to claim 2, characterized in that: The transmission assembly includes a transmission shaft (10) and a third gear (11). The bearing housing (2) is rotatably connected to a set of the transmission shaft (10). One end of the transmission shaft (10) is connected to a set of the third gear (11). The third gear (11) meshes with the second gear (8) to form a first-stage reduction structure. The other end of the transmission shaft (10) is connected to the cleaning brush (4).

4. A filtration device for circulating backwashing according to claim 2, characterized in that: The first water pipe (9) is sealed and rotatably connected to the second water pipe (13) through a rotating joint (12), and the second water pipe (13) penetrates the protective cover (5) and is fixedly connected to it.

5. A filtration device for circulating backwashing according to claim 1, characterized in that: A set of water inlet pipes (14) are connected to the outer wall of the lower end of the filter housing (1). A set of sewage pipes (15) is provided at the center of the bottom end of the filter housing (1). A support member (16) is also welded to the bottom end of the filter housing (1).

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