A circulating regeneration filter system with bidirectional jet cleaning

Abstract

This utility model proposes a circulating regeneration filter system with bidirectional jet cleaning, including a filter tank, a filter chamber, a partition plate, and several water through holes communicating with the top of the filter tubes. A bidirectional jet cleaning device for deep cleaning of the filter chamber is connected to the filter tank. The bidirectional jet cleaning device includes a lower jet cleaning pipe, a lower jet cleaning port, an upper jet cleaning pipe, and an upper jet cleaning port. The lower jet cleaning port is located at the lower end of the filter tank and communicates with the filter chamber. One end of the lower jet cleaning pipe is connected to the lower jet cleaning port. A lower cleaning water distributor connected to the lower jet cleaning port is provided inside the filter tank. The height of the upper jet cleaning port is higher than the top of the filter tubes. This filter system thoroughly removes the perlite powder used on the filter tubes by bidirectionally flushing the filter tubes, increasing the adhesion area for new perlite powder and improving the water filtration effect.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, and in particular to a circulating regeneration filter system with bidirectional jet cleaning. Background Technology

[0002] Currently, water filters are widely used in swimming pools, water recreation venues, health centers, spas, aquariums, zoos, and aquaculture. The filter media in a water filter adsorbs impurities in the water, achieving purification and filtration. Existing circulating regenerable media filters have multiple filter cartridge hoses vertically arranged within the filter cylinder body. For example, Chinese utility model patent CN220309937U discloses a jet-type circulating regenerable media filter, including a filter cylinder body. Within the filter cylinder body, a coil is located at the lower end of the filter cartridge hoses. Several spray pipes are vertically distributed among the filter cartridge hoses on the coil, and each spray pipe has several nozzles. A water-air dual-purpose port is located on the side of the filter cylinder body, and a connecting pipe is sealed to the water-air dual-purpose port on the side of the coil. An air injection port is located on the water-air dual-purpose port. The coils have different diameters and are arranged in a ring array, with interconnected pipes between the coils. The dual-purpose water and air nozzle connects to raw water and air, which are then sprayed out from the nozzle through a coil. During activation or media replacement mode, the raw water and air are sprayed onto the filter cartridge hose, causing the perlite powder adhering to the hose to detach, achieving the purpose of media recycling or rapid flushing and replacement. However, this patented structure has the following drawbacks: Because the nozzle sprays water onto the filter cartridge hose from bottom to top, although most of the perlite powder filter media on the outer wall of the hose can be washed away, some perlite powder tightly adhering to the outer wall cannot be washed away. This means that the used perlite powder on the outer wall of the hose cannot be completely removed. Furthermore, because of the residual used perlite powder adhering to the outer wall of the hose, the area of ​​new perlite powder adhering to the hose is reduced after replacing the filter cartridge, affecting the water filtration effect.

[0003] Therefore, it is necessary to study a circulating regeneration filter system that can overcome the above-mentioned technical defects. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a circulating regeneration filter system with bidirectional jet cleaning. This filter system can thoroughly remove the perlite powder and other filter media used on the filter tube by bidirectional flushing, thereby increasing the adhesion area of ​​the new perlite powder and improving the water filtration effect.

[0005] To solve the above-mentioned technical problems, this utility model proposes a circulating regeneration filter system with bidirectional jet cleaning, including a filter tank. A partition plate dividing the filter tank into a filtration chamber and a clean water chamber is fixed inside the filter tank. Filter tubes extending into the filtration chambers are suspended on the partition plate. Several water-permeable holes communicating with the tops of the filter tubes are provided on the partition plate. A bidirectional jet cleaning device for deep cleaning of the filtration chamber is also connected to the filter tank. The bidirectional jet cleaning device includes a lower jet cleaning pipe, a lower jet cleaning port, an upper jet cleaning pipe, and an upper jet cleaning port. The lower jet cleaning port is located at the lower end of the filter tank and communicates with the filtration chamber. One end of the lower jet cleaning pipe is connected to the lower jet cleaning port. The other end of the cleaning pipe is used to introduce water for cleaning the filter tube from bottom to top. A lower cleaning water distributor connected to the lower spray cleaning pipe is provided in the filter tank. Several spray pipes for spraying and cleaning the outer wall of the filter tube are connected to the lower cleaning water distributor. The upper spray cleaning pipe is located at the upper end of the filter tank and is connected to the clean water chamber. The height of the upper spray cleaning pipe is higher than the height of the top of the filter tube. One end of the upper spray cleaning pipe is connected to the upper spray cleaning pipe, and the other end of the upper spray cleaning pipe is used to introduce water for cleaning the filter tube from top to bottom. The upper spray cleaning pipe, the clean water chamber, the water through holes of the partition plate, and the inner cavity of the filter tube are connected to form an upper cleaning channel for rinsing the filter tube from the inner wall to the outer wall.

[0006] Furthermore, in a preferred embodiment of this utility model, a water inlet is provided at the lower end of the filter tank, and an external circulation water outlet and an internal circulation water outlet are provided at the upper end of the filter tank. A water inlet pipe is connected to the water inlet, and the internal circulation water outlet also serves as the upper spray cleaning outlet. A bidirectional water pipe is connected to the internal circulation water outlet, the upper end of the internal circulation water outlet pipe is connected to the other end of the bidirectional water pipe, and the lower end of the internal circulation water outlet pipe is connected to the water inlet pipe. The upper end of the upper spray cleaning pipe is connected to the other end of the bidirectional water pipe, and the lower end of the upper spray cleaning pipe is connected to the water inlet pipe.

[0007] Furthermore, in a preferred embodiment of this utility model, a circulating water pump for introducing water source is connected to the water inlet pipe, and an external circulation water outlet pipe and an internal circulation water outlet pipe are respectively connected to the external circulation water outlet and the internal circulation water outlet. The other end of the lower spray cleaning pipe is connected to the water inlet pipe, and an upper spray cleaning control valve is provided on the spray cleaning pipe.

[0008] Furthermore, in a preferred embodiment of this utility model, the other end of the lower spray cleaning pipe is connected to the water inlet pipe, and an upper spray cleaning control valve is provided on the spray cleaning pipe.

[0009] Furthermore, in a preferred embodiment of this utility model, the water inlet pipe includes a main pipe, a vertical lifting and bending pipe, and a horizontal pipe connected in sequence. The main pipe is connected to a water source, the horizontal pipe is connected to the water inlet of the filter tank, the height of the vertical lifting and bending pipe is higher than the height of the main pipe and the horizontal pipe, the other end of the lower spray cleaning pipe is connected to the horizontal pipe, and the lower end of the internal circulation water outlet pipe is connected to the main pipe.

[0010] Furthermore, in a preferred embodiment of this utility model, the circulating water pump is installed on the main pipeline of the inlet water pipe.

[0011] Furthermore, in a preferred embodiment of this utility model, a transparent tube for observing the working status of the internal circulation is provided on the internal circulation outlet pipe. The internal circulation outlet pipe includes a first vertical pipe, a second vertical pipe, and a horizontal pipe. The lower end of the first vertical pipe is connected to the inlet pipe. The lower end of the transparent tube is connected to the upper end of the first vertical pipe. The upper end of the transparent tube is connected to the lower end of the second vertical pipe. The upper end of the second vertical pipe is connected to the horizontal pipe. The other end of the horizontal pipe is connected to the bidirectional water pipe.

[0012] Furthermore, in a preferred embodiment of this utility model, the upper spray cleaning pipe is a vertical pipe, which is vertically connected between the bidirectional water pipe and the inlet water pipe.

[0013] Furthermore, in a preferred embodiment of this invention, a pre-filter for removing impurities from the water source is also provided in the main pipeline.

[0014] Furthermore, in a preferred embodiment of this utility model, the filter tank includes a tank body and a tank cover that are fastened together, the partition tube plate is disposed between the tank body and the tank cover, the water inlet and the lower spray cleaning inlet are disposed on the tank body, and the external circulation water outlet, the internal circulation water outlet, and the upper spray cleaning inlet are disposed on the tank cover.

[0015] Furthermore, in a preferred embodiment of this utility model, the lower cleaning water distributor includes a strip-shaped washing main pipe with one end open and the other end closed. The open end of the strip-shaped washing main pipe is connected to the lower spray cleaning pipe. Several washing branch pipes connected to the strip-shaped washing main pipe are provided on the side wall of the strip-shaped washing main pipe. The bottom of the spray pipe is fixed on the washing branch pipe, and the spray pipe is connected to the washing branch pipe.

[0016] Compared with existing technologies, this invention has the following advantages: When replacing the filter media, this invention can achieve both bottom and top rinsing of the filter media to be replaced. The bottom spray cleaning pipe, bottom cleaning distributor, and spray pipe rinse the filter tube from bottom to top. Water flowing into the top spray cleaning pipe falls freely from the top of the filter tank, scattering downwards through the partition plate and rinsing the filter tube from top to bottom. This thoroughly removes any residual filter media to be replaced from the filter tube. After the filter tube is cleaned, new filter media can be replaced, achieving rapid and thorough removal of the old filter media, improving the efficiency of filter media replacement; it also increases the adhesion area of ​​the new filter media to the filter tube, improving the filtration effect of the filter tank. Attached Figure Description

[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a 3D view of a circulating regeneration filter system; Figure 2 This is one of the 3D views of a recirculating regeneration filter; Figure 3 This is the second 3D view of the recirculating regeneration filter; Figure 4 This is a three-dimensional sectional view of the recirculating regeneration filter after the tank cap has been removed. Figure 5 This is an exploded view of a recirculating regeneration filter; Figure 6 This is a schematic diagram of the double-flushing structure of the circulating regeneration filter. Detailed Implementation The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0018] See Figures 1 to 6As shown, this utility model introduces a circulating regeneration filter system with bidirectional jet cleaning, including a filter tank 1. The filter tank 1 has an inlet 11 at its lower end and an external circulation outlet 12 and an internal circulation outlet 13 at its upper end. An inlet pipe 2 is connected to the inlet 11, and a circulating water pump 200 for introducing water is connected to the inlet pipe 2. An external circulation outlet pipe 3 and an internal circulation outlet pipe 3 are respectively connected to the external circulation outlet 12 and the internal circulation outlet 13. Channel 4: Inside the filter tank 1, a partition plate 5 is fixed, dividing the filter tank 1 into a filter chamber 10 and a clean water chamber. A filter tube 6, extending into the filter chamber 10, is suspended on the partition plate 5. The inlet pipe 2, filter chamber 10, clean water chamber, and external circulation outlet pipe 3 form an external circulation channel for adsorbing impurities from the water source to be filtered. A bidirectional jet cleaning device 7 for deep cleaning of the filter chamber 10 is also connected to the filter tank 1. The bidirectional jet cleaning device 7 includes a lower jet cleaning pipe 8 and a lower jet cleaning port 14. The filter tank 1 has an upper spray cleaning pipe 9 and an upper spray cleaning port. The lower spray cleaning port 14 is located at the lower end of the filter tank 1 and is connected to the filter chamber 10. One end of the lower spray cleaning pipe 8 is connected to the lower spray cleaning port 14, and the other end of the lower spray cleaning pipe 8 is used to introduce water source for cleaning the filter tube 6 from bottom to top. A lower cleaning water distributor 81 connected to the lower spray cleaning port 14 is provided in the filter tank 1. Several spray pipes 82 for spraying and cleaning the outer wall of the filter tube 6 are connected to the lower cleaning water distributor 81. The upper spray cleaning port is located at the upper end of the filter tank 1 and is connected to the clean water chamber. The height of the upper spray cleaning port is higher than the height of the top of the filter tube 6. One end of the upper spray cleaning pipe 9 is connected to the upper spray cleaning port, and the other end of the upper spray cleaning pipe 9 is used to introduce water source for cleaning the filter tube 6 from top to bottom. The upper spray cleaning port, the clean water chamber, the water through hole of the partition plate 5, and the inner cavity of the filter tube 6 are connected to form an upper cleaning channel for rinsing the filter tube 6 from the inner wall to the outer wall.

[0019] This invention enables both bottom and top rinsing of the filter media to be replaced when replacing filter media such as perlite powder. The bottom rinsing mode involves rinsing the filter tube 6 from bottom to top. Water enters the bottom spray cleaning port 14 from the bottom spray cleaning pipe 8, and high-pressure gas is added to the bottom spray cleaning port 14 from an external air pump. After the water and gas mix, they pass through the bottom cleaning water distributor 81 and are then sprayed onto the outer wall of the filter tube 6 by several spray pipes 82, thus rinsing the filter media to be replaced on the outer wall of the filter tube 6. After rinsing, the filter media falls to the bottom of the filter tank 1 and is then discharged outside the filter tank 1.

[0020] Since the bottom flushing mode alone cannot completely remove the residual filter media to be replaced from filter tube 6, an top flushing mode is also required. The top flushing mode involves flushing filter tube 6 from top to bottom, inside and out. Water enters from the top spray cleaning pipe 9 and flows into the top spray cleaning port. The water falling freely from the top of the filter tank 1, like a showerhead, cascades down through the water holes in the partition plate 5 and enters the interior of filter tube 6, then flushes from the inner wall to the outer wall. This top-to-bottom and inside-outside flushing thoroughly removes the residual filter media to be replaced from filter tube 6. After filter tube 6 is cleaned, new filter media can be replaced, achieving rapid and thorough removal of the old filter media, improving the efficiency of filter media replacement; it also increases the area of ​​the new filter media adhering to filter tube 6, improving the filtration effect of filter tank 1.

[0021] See Figure 1 To improve the rinsing effect and simplify the pipe structure, this utility model further adopts the following technical solution: the internal circulation water outlet 13 also serves as the upper spray cleaning outlet. A bidirectional water pipe 41 is connected to the internal circulation water outlet 13. The upper end of the internal circulation water outlet 4 is connected to the other end of the bidirectional water pipe 41, and the lower end of the internal circulation water outlet 4 is connected to the inlet pipe 2. The upper end of the upper spray cleaning pipe 9 is connected to the other end of the bidirectional water pipe 41, and the lower end of the upper spray cleaning pipe 9 is connected to the inlet pipe 2. The other end of the lower spray cleaning pipe 8 is connected to the inlet pipe 2, and an upper spray cleaning control valve 91 is provided on the spray cleaning pipe 9.

[0022] See Figure 1-6 The water inlet pipe 2 includes a main pipe 21, a vertically lifting curved pipe 22, and a horizontal pipe 23 connected in sequence. The main pipe 21 is connected to a water source, and the horizontal pipe 23 is connected to the water inlet 11 of the filter tank 1. The height of the vertically lifting curved pipe 22 is higher than the height of the main pipe 21 and the horizontal pipe 23. The other end of the lower spray cleaning pipe 8 is connected to the horizontal pipe 23, and the lower end of the internal circulation outlet pipe 4 is connected to the main pipe 21. The circulating water pump 200 is installed on the main pipe 21 of the water inlet pipe 2. The connection between the lower spray cleaning pipe 8 and the water inlet pipe 2 not only simplifies the structure of the lower spray cleaning connection, but also, because the water inlet pipe 2 has a vertically lifting curved pipe 22 that is higher than the height of the main pipe 21 and the horizontal pipe 23, the water source added to the lower cleaning distributor 81 and the spray pipe 82 through the lower spray cleaning pipe 8 has a stronger impact.

[0023] See Figure 1A transparent tube section 42 for observing the internal circulation operation is provided on the internal circulation outlet pipe 4. The internal circulation outlet pipe 4 includes a first vertical pipe 43, a second vertical pipe 44, and a horizontal pipe 45. The lower end of the first vertical pipe 43 is connected to the inlet pipe 2. The lower end of the transparent tube section 42 is connected to the upper end of the first vertical pipe 43. The upper end of the transparent tube section 42 is connected to the lower end of the second vertical pipe 44. The upper end of the second vertical pipe 44 is connected to the horizontal pipe 45. The other end of the horizontal pipe 45 is connected to the bidirectional water pipe 41.

[0024] See Figure 1 The upper spray cleaning pipe 9 is a vertical pipe, which is vertically connected between the bidirectional water pipe 41 and the inlet pipe 2. The use of a vertical pipe for the upper spray cleaning pipe 9 shortens the distance from which water is added to the filter tank 1 from above, and improves the effect of rinsing the filter pipe 6 from top to bottom.

[0025] See Figure 1 The main pipe 21 is also equipped with a pre-filter 210 to remove impurities from the water source. The pre-filter 210 can remove larger impurities such as hair and debris from the water source to be filtered, such as a swimming pool.

[0026] See Figure 2-5 The filter tank 1 includes a tank body 101 and a tank cover 102 that are fastened together. A partition plate 5 is disposed between the tank body 101 and the tank cover 102. An inlet 11 and a lower spray cleaning inlet 14 are disposed on the tank body 101. An external circulation outlet 12, an internal circulation outlet 13, and an upper spray cleaning inlet are disposed on the tank cover 102. A media suction inlet 15, a drain outlet 16, and at least one observation port 17 are also provided at the lower end of the tank body 101. The media suction inlet 15 is used for external media replenishment. When changing the media mode, the old perlite powder needs to be rinsed and discharged from the drain outlet 16. During mode change, a vacuum suction machine draws air from the filter tank 1, creating a negative pressure inside the filter tank 1, which draws the filter media from the media suction inlet 15 into the filter tank 1. Then, the new filter media is adhered to the outer wall of the filter tube 6 through an internal circulation mode. When the water source to be filtered, such as a swimming pool, needs to be filtered, the external circulation mode is activated. The filter tube 6 with the filter media attached adsorbs impurities in the water, thereby purifying and filtering the water source. In this embodiment, two observation windows 17 at different heights are provided to facilitate manual observation of the filtration status of the filter tank 1 and to determine whether activation or media replacement is necessary.

[0027] See Figure 2-6The lower cleaning water distributor 81 includes a strip-shaped washing main pipe 811 with one end open and the other end closed. The open end of the strip-shaped washing main pipe 811 is connected to the lower spray cleaning pipe port 14. Several washing branch pipes 812 are provided on the side wall of the strip-shaped washing main pipe 811 and are connected to it. The bottom of the spray pipe 82 is fixed on the washing branch pipe 812 and the spray pipe 82 is connected to the washing branch pipe 812.

[0028] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this application, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A circulating regeneration filter system with bidirectional jet cleaning, comprising a filter tank (1), a partition plate (5) fixed inside the filter tank (1) dividing the filter tank (1) into a filter chamber (10) and a clean water chamber, a filter tube (6) suspended on the partition plate (5) extending into the filter chamber (10), and a plurality of water-permeable holes communicating with the top end of the filter tube (6) provided on the partition plate (5), characterized in that... A bidirectional jet cleaning device (7) for deep cleaning of the filter chamber (10) is also connected to the filter tank (1). The bidirectional jet cleaning device (7) includes a lower jet cleaning pipe (8), a lower jet cleaning port (14), an upper jet cleaning pipe (9), and an upper jet cleaning port. The lower jet cleaning port (14) is located at the lower end of the filter tank (1) and is connected to the filter chamber (10). One end of the lower jet cleaning pipe (8) is connected to the lower jet cleaning port (14), and the other end of the lower jet cleaning pipe (8) is used to introduce water to clean the filter pipe (6) from bottom to top. A lower cleaning branch is provided in the filter tank (1) and is connected to the lower jet cleaning port (14). The water purifier (81) has several spray pipes (82) connected to the lower cleaning water distributor (81) for spraying and cleaning the outer wall of the filter tube (6); the upper spray cleaning port is located at the upper end of the filter tank (1) and is connected to the clean water chamber. The height of the upper spray cleaning port is higher than the height of the top of the filter tube (6). One end of the upper spray cleaning pipe (9) is connected to the upper spray cleaning port. The other end of the upper spray cleaning pipe (9) is used to introduce water source for cleaning the filter tube (6) from top to bottom. The upper spray cleaning port, the clean water chamber, the water through hole of the partition plate (5), and the inner cavity of the filter tube (6) are connected to form an upper cleaning channel for rinsing the filter tube (6) from the inner wall to the outer wall.

2. The up and down dual jet cleaning, cyclic regenerative filter system of claim 1 wherein, A water inlet (11) is provided at the lower end of the filter tank (1), and an external circulation outlet (12) and an internal circulation outlet (13) are provided at the upper end of the filter tank (1). A water inlet pipe (2) is connected to the water inlet (11). The internal circulation outlet (13) also serves as the upper spray cleaning outlet. A bidirectional water pipe (41) is connected to the internal circulation outlet (13). An external circulation outlet pipe (3) and an internal circulation outlet pipe (4) are respectively connected to the external circulation outlet (12) and the internal circulation outlet (13). The upper end of the internal circulation outlet pipe (4) is connected to the other end of the bidirectional water pipe (41), and the lower end of the internal circulation outlet pipe (4) is connected to the water inlet pipe (2). The upper end of the upper spray cleaning pipe (9) is connected to the other end of the bidirectional water pipe (41), and the lower end of the upper spray cleaning pipe (9) is connected to the water inlet pipe (2).

3. The up and down dual jet cleaning, cyclic regenerative filter system of claim 2 wherein, A circulating water pump (200) for introducing water source is connected to the water inlet pipe (2). An external circulation outlet pipe (3) and an internal circulation outlet pipe (4) are respectively connected to the external circulation outlet pipe (12) and the internal circulation outlet pipe (13). The other end of the lower spray cleaning pipe (8) is connected to the water inlet pipe (2). An upper spray cleaning control valve (91) is provided on the spray cleaning pipe (9).

4. The up and down dual jet cleaning, cyclic regenerative filter system of claim 2 wherein, The water inlet pipe (2) includes a main pipe (21), a vertical lifting curved pipe (22), and a horizontal pipe (23) connected in sequence. The main pipe (21) is connected to the water source, and the horizontal pipe (23) is connected to the water inlet (11) of the filter tank (1). The height of the vertical lifting curved pipe (22) is higher than the height of the main pipe (21) and the horizontal pipe (23). The other end of the lower spray cleaning pipe (8) is connected to the horizontal pipe (23), and the lower end of the internal circulation water outlet pipe (4) is connected to the main pipe (21).

5. The up and down dual jet cleaning, cyclic regenerative filter system of claim 3 wherein, The circulating water pump (200) is installed on the main pipe (21) of the inlet pipe (2).

6. The up and down dual jet cleaning, cyclic regenerative filter system of claim 2 wherein, A transparent tube (42) for observing the working status of the internal circulation is provided on the internal circulation outlet pipe (4). The internal circulation outlet pipe (4) includes a first vertical pipe (43), a second vertical pipe (44), and a horizontal pipe (45). The lower end of the first vertical pipe (43) is connected to the inlet pipe (2). The lower end of the transparent tube (42) is connected to the upper end of the first vertical pipe (43). The upper end of the transparent tube (42) is connected to the lower end of the second vertical pipe (44). The upper end of the second vertical pipe (44) is connected to the horizontal pipe (45). The other end of the horizontal pipe (45) is connected to the bidirectional water pipe (41).

7. The up and down dual jet cleaning, cyclic regenerative filter system of claim 2 wherein, The upper spray cleaning pipe (9) is a vertical pipe that is vertically connected between the bidirectional water pipe (41) and the inlet pipe (2).

8. The up and down dual jet cleaning, cyclic regenerative filter system of claim 4 wherein, The main pipeline (21) is also equipped with a pre-filter (210) to remove impurities from the water source.

9. The up and down dual jet cleaning, cyclic regenerative filter system of claim 2 wherein, The filter tank (1) includes a tank body (101) and a tank cover (102) that are fastened together. The partition plate (5) is disposed between the tank body (101) and the tank cover (102). The water inlet (11) and the lower spray cleaning port (14) are disposed on the tank body (101). The external circulation water outlet (12), the internal circulation water outlet (13), and the upper spray cleaning port are disposed on the tank cover (102).

10. The up and down dual jet cleaning, cyclic regenerative filter system of claim 1 or 2, wherein, The lower cleaning water distributor (81) includes a strip-shaped washing main pipe (811) with one end open and the other end closed. The open end of the strip-shaped washing main pipe (811) is connected to the lower spray cleaning pipe (14). Several washing branch pipes (812) are provided on the side wall of the strip-shaped washing main pipe (811) and are connected to it. The bottom of the spray pipe (82) is fixed on the washing branch pipe (812) and the spray pipe (82) is connected to the washing branch pipe (812).

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