Petal type backwashing filter

Abstract

The utility model relates to the technical field of filtering equipment, in particular to a petal type backwash filter which comprises a shell, a cylindrical filter cartridge is horizontally and fixedly mounted in the shell, one end of the filter cartridge is communicated with a water inlet, a blow-off pipe is mounted at the other end of the filter cartridge, one end of the blow-off pipe is communicated with a blow-off port, and the other end of the blow-off pipe is communicated with a water outlet. A rotary pipe is horizontally and rotatably mounted in the filter cartridge, one end of the rotary pipe sequentially penetrates through the blow-off pipe and the shell and is provided with a water supply pipe through a rotary connecting assembly, a plurality of high-pressure spray heads communicated with the interior are mounted on the side face of the rotary pipe, and a driving assembly used for driving the rotary pipe to rotate is arranged at one end of the shell. In the backwashing process, high-pressure water flow is sprayed to the side surface of the filter cartridge through mutual matching of the rotating pipe, the high-water pipe, the driving assembly and the high-pressure spray head, impurities attached to the filter cartridge are washed off, the impurities are thoroughly removed through the high-pressure water flow, and the backwashing effect is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of filtration equipment technology, and in particular to a petal-type backwash filter. Background Technology

[0002] In a wide variety of complex industrial production fields, such as chemical manufacturing, food processing, pharmaceutical processes, and people's daily water use scenarios, including household drinking water supply and community secondary water supply systems, filtration devices play an irreplaceable and crucial role. Among them, backwash filters are a type of filtration device with backwashing function. They are precision devices that use filter cartridges to directly intercept impurities in the water, remove suspended solids and particulate matter, reduce turbidity, purify water quality, and reduce the generation of system dirt, algae, rust, etc., in order to purify water quality and protect the normal operation of other equipment in the system.

[0003] While existing backwash filters have a backwashing function and can solve the problem of filter element clogging to some extent, they suffer from poor backwashing effect and cannot effectively remove impurities from the surface and pores of the filter element. Utility Model Content

[0004] The purpose of this utility model is to solve the following shortcomings in the existing technology: although the existing backwash filter has a backwash function and solves the problem of filter element clogging to a certain extent, the backwash effect is not good and it cannot effectively remove impurities from the surface and pores of the filter element. Therefore, a petal-shaped backwash filter is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A petal-shaped backwash filter includes a housing, an inlet, an outlet, and a drain outlet. The inlet is located at one end of the housing, the outlet is located on the upper side of the housing, and the drain outlet is located at the bottom of the housing. A cylindrical filter cartridge is horizontally fixed inside the housing. One end of the filter cartridge is connected to the inlet, and a drain pipe is installed at the other end of the filter cartridge. One end of the drain pipe is connected to the drain outlet.

[0007] A rotating tube is horizontally rotatably installed inside the filter cartridge. The end of the rotating tube near the water inlet is sealed. The other end of the rotating tube passes through the drain pipe and the housing in sequence, and a water supply pipe is installed through a rotating connection assembly. Multiple high-pressure nozzles, all connected to the interior, are installed on the side of the rotating tube. All the high-pressure nozzles are located inside the filter cartridge. One end of the housing is provided with a drive assembly for rotating the rotating tube.

[0008] Preferably, the drive assembly includes a drive motor fixedly mounted at one end of the housing, a first spur gear fixedly mounted at one end of the output shaft of the drive motor, and a second spur gear fixedly sleeved on the rotating tube, wherein the first spur gear and the second spur gear are meshed together.

[0009] Preferably, the rotating connection assembly includes a rotating sleeve rotatably fitted onto one end of the rotating pipe, a first connecting flange fixedly fitted onto the rotating sleeve, and a second connecting flange fixedly fitted onto one end of the water supply pipe, wherein the first connecting flange and the second connecting flange are connected by bolts.

[0010] Preferably, one end of the rotating sleeve is provided with an annular sealing groove, one end of the water supply pipe is inserted into the annular sealing groove, and an annular sealing ring is installed in the annular sealing groove.

[0011] Preferably, a filter plate is fixedly installed inside the filter cartridge, the rotating tube is rotatably installed on two filter plates, and a filter element is provided between the two filter plates.

[0012] Preferably, the filter element is composed of multiple filter tubes, which are installed in a petal shape between two filter plates.

[0013] The beneficial effects of this utility model are as follows:

[0014] During the backwashing process, the rotating pipe, high-pressure water pipe, drive assembly and high-pressure nozzle work together to spray high-pressure water jets onto the side of the filter cartridge, washing off the impurities attached to the filter cartridge. The high-pressure water jets thoroughly remove the impurities, significantly improving the backwashing effect.

[0015] 2. The unique structure of the petal-shaped filter element increases the filtration area, enabling the filter to process more liquid or gas per unit time, thus improving filtration efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a petal-shaped backwash filter proposed in this utility model;

[0017] Figure 2 This is a three-dimensional cross-sectional structural diagram of a petal-shaped backwash filter proposed in this utility model;

[0018] Figure 3 A schematic diagram of the three-dimensional cross-sectional structure of the filter cartridge, filter element, rotating tube, and drain pipe;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the filter element;

[0020] Figure 5 A three-dimensional structural diagram of the rotating pipe, water supply pipe, and rotating connection assembly;

[0021] Figure 6 This is a cross-sectional structural diagram of the rotating pipe, water supply pipe, and rotating connection assembly;

[0022] Figure 7 for Figure 1 Enlarged view of the structure at point A in the middle;

[0023] Figure 8 for Figure 3 Enlarged view of the structure at point B in the middle.

[0024] In the diagram: 1. Shell, 2. Inlet, 3. Outlet, 4. Drain, 5. Filter cartridge, 6. Drain pipe, 7. Rotary pipe, 8. Water supply pipe, 9. High-pressure nozzle, 10. Drive motor, 11. First spur gear, 12. Second spur gear, 13. Rotary sleeve, 14. First connecting flange, 15. Second connecting flange, 16. Filter plate, 17. Filter tube, 18. Sealing ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figures 1-8 A petal-shaped backwash filter includes a housing 1, an inlet 2, an outlet 3, and a drain 4. The inlet 2 is located at one end of the housing 1, the outlet 3 is located on the upper side of the housing 1, and the drain 4 is located at the bottom of the housing 1. A cylindrical filter cartridge 5 is horizontally fixed inside the housing 1. One end of the filter cartridge 5 is connected to the inlet 2, and the other end of the filter cartridge 5 is connected to a drain pipe 6. One end of the drain pipe 6 is connected to the drain 4. The inlet 2 is used to introduce the liquid to be filtered, the outlet 3 is used to discharge the filtered clean liquid, and the drain 4 is used to discharge the impurities removed during the backwashing process. The washed-off impurities enter the drain pipe 6 under the action of water flow and are discharged from the filter through the drain 4.

[0027] A rotating tube 7 is horizontally rotatably installed inside the filter cartridge 5. The end of the rotating tube 7 near the water inlet 2 is sealed. The other end of the rotating tube 7 passes through the drain pipe 6 and the housing 1 in sequence, and a water supply pipe 8 is installed through a rotating connection assembly. Multiple high-pressure nozzles 9, all of which are connected to the interior, are installed on the side of the rotating tube 7. All the high-pressure nozzles 9 are located inside the filter cartridge 5. One end of the housing 1 is provided with a drive assembly for driving the rotating tube 7 to rotate.

[0028] The rotating tube 7 is horizontally installed inside the filter cartridge 5. One end of the water supply pipe 8 is connected to an external water pump, which continuously supplies water to the rotating tube 7. The water pump is existing technology and is not shown in the figure. During the backwashing process, the rotating tube 7 is rotated by the drive component. The water entering the lower rotating tube 7 through the water supply pipe 8 will be sprayed out from the nozzles of multiple high-pressure nozzles 9. During the rotation of the rotating tube 7, clean water is sprayed onto the filter cartridge 5 through the backwashing high-pressure nozzles 9, washing off the impurities attached to the filter cartridge 5. The washed-off impurities enter the drain pipe 6 under the action of the water flow and are discharged from the filter through the drain port 4. The impurities are thoroughly removed by the high-pressure water flow, which significantly improves the backwashing effect.

[0029] The drive assembly includes a drive motor 10 fixedly mounted at one end of the housing 1, a first spur gear 11 fixedly mounted at one end of the output shaft of the drive motor 10, and a second spur gear 12 fixedly sleeved on the rotating tube 7. The first spur gear 11 and the second spur gear 12 are meshed together. When it is necessary to drive the rotating tube 7 to rotate, the drive motor 10 is started, which drives the first spur gear 11 to rotate. Through the transmission between the first spur gear 11 and the second spur gear 12, the rotating tube 7 is driven to rotate.

[0030] The rotating connection assembly includes a rotating sleeve 13 rotatably fitted onto one end of the rotating pipe 7, a first connecting flange 14 fixedly fitted onto the rotating sleeve 13, and a second connecting flange 15 fixedly fitted onto one end of the water supply pipe 8. The first connecting flange 14 and the second connecting flange 15 are connected by bolts. One end of the rotating sleeve 13 is provided with an annular sealing groove, and one end of the water supply pipe 8 is inserted into the annular sealing groove. An annular sealing ring 18 is installed in the annular sealing groove.

[0031] The rotating pipe 7 and the rotating sleeve 13 can rotate relative to each other. The rotating sleeve 13 is connected together by the first connecting flange 14 and the second connecting flange 15 to ensure the connection between the rotating pipe 7 and the water supply pipe 8, and at the same time ensure that the rotating pipe 7 and the water supply pipe 8 can rotate relative to each other. One end of the water supply pipe 8 is inserted into the annular sealing groove to ensure the sealing between them. The sealing ring 18 further improves the sealing between the rotating sleeve 13 and the water supply pipe 8.

[0032] A filter plate 16 is fixedly installed inside the filter cartridge 5. A rotating tube 7 is rotatably installed on two filter plates 16. A filter element is provided between the two filter plates 16. The filter element is composed of multiple filter tubes 17. The multiple filter tubes 17 are installed in a petal shape between the two filter plates 16. The unique structure of the petal-shaped filter element increases the filtration area, enabling the filter to process more liquid or gas per unit time and improving the filtration efficiency. At the same time, a certain gap is formed between adjacent filter tubes 17, which facilitates the passage of water during backwashing and enhances the backwashing effect.

[0033] In this invention, during the backwashing process, the rotating tube 7 of the drive assembly rotates, and the water entering the lower rotating tube 7 through the water supply pipe 8 is sprayed out from the nozzles of multiple high-pressure nozzles 9. During the rotation of the rotating tube 7, clean water is sprayed onto the filter cartridge 5 through the backwashing high-pressure nozzles 9, washing off the impurities attached to the filter cartridge 5. The washed-off impurities enter the drain pipe 6 under the action of the water flow and are discharged from the filter through the drain port 4. The impurities are thoroughly removed by the high-pressure water flow, significantly improving the backwashing effect.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A petal-shaped backwash filter, comprising a housing (1), an inlet (2), an outlet (3), and a drain outlet (4), characterized in that, The inlet (2) is located at one end of the housing (1), the outlet (3) is located on the upper side of the housing (1), the drain (4) is located at the bottom of the housing (1), a cylindrical filter (5) is horizontally fixed inside the housing (1), one end of the filter (5) is connected to the inlet (2), and the other end of the filter (5) is equipped with a drain pipe (6), one end of the drain pipe (6) is connected to the drain (4); A rotating tube (7) is horizontally rotatably installed inside the filter cartridge (5). The end of the rotating tube (7) near the water inlet (2) is sealed. The other end of the rotating tube (7) passes through the drain pipe (6) and the housing (1) in sequence, and a water supply pipe (8) is installed through a rotating connection assembly. Multiple high-pressure nozzles (9) that are connected to the inside are installed on the side of the rotating tube (7). The multiple high-pressure nozzles (9) are all located inside the filter cartridge (5). One end of the housing (1) is provided with a drive assembly for driving the rotating tube (7) to rotate.

2. The petal-type backwash filter according to claim 1, characterized in that, The drive assembly includes a drive motor (10) fixedly mounted on one end of the housing (1), a first spur gear (11) fixedly mounted on one end of the output shaft of the drive motor (10), and a second spur gear (12) fixedly sleeved on the rotating tube (7). The first spur gear (11) and the second spur gear (12) are meshed together.

3. A petal-type backwash filter according to claim 1, characterized in that, The rotating connection assembly includes a rotating sleeve (13) rotatably fitted onto one end of the rotating tube (7), a first connecting flange (14) fixedly fitted onto the rotating sleeve (13), and a second connecting flange (15) fixedly fitted onto one end of the water supply pipe (8). The first connecting flange (14) and the second connecting flange (15) are connected by bolt fasteners.

4. A petal-type backwash filter according to claim 3, characterized in that, One end of the rotating sleeve (13) is provided with an annular sealing groove, and one end of the water supply pipe (8) is inserted into the annular sealing groove. An annular sealing ring (18) is installed in the annular sealing groove.

5. A petal-type backwash filter according to claim 1, characterized in that, The filter cylinder (5) is fixedly installed with filter plates (16), and the rotating tube (7) is rotatably installed on the two filter plates (16). A filter element is provided between the two filter plates (16).

6. A petal-type backwash filter according to claim 5, characterized in that, The filter element is composed of multiple filter tubes (17), which are installed in a petal shape between two filter plates (16).

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