Filter material cleaning device for filter tank

Abstract

The utility model discloses a filter material cleaning device for a filter tank, and belongs to the technical field of tank body cleaning. Comprising a filtering tank, a water outlet is formed in the upper end of the filtering tank, a water inlet is formed in the lower end of the filtering tank and connected with a high-pressure water pump, an air inlet pipe communicating inner and outer tank bodies is horizontally arranged on the side wall of the lower bottom of the filtering tank, and the outer end of the air inlet pipe is sequentially connected with a valve and an air inlet source; a filter material layer, a water distributor plate, an outer ring gas distribution pipe and an inner ring gas distribution pipe are sequentially arranged in the filter tank from top to bottom, the upper end surface of the water distributor plate is a convex spherical surface, and a plurality of filter holes are uniformly distributed in the spherical surface; the outer-ring gas distribution pipe and the inner-ring gas distribution pipe are both pipelines of an annular structure, a plurality of gas holes are evenly distributed in the upper end faces of the outer-ring gas distribution pipe and the inner-ring gas distribution pipe, and the inner end of the gas inlet pipe is communicated with the outer-ring gas distribution pipe and the inner-ring gas distribution pipe in the horizontal direction. According to the device disclosed by the utility model, air-water combination is formed in the tank body, so that bubbles can stir a filter material to roll over and rub with each other, and the cleaning is more thorough.

Description

Technical Field

[0001] This utility model belongs to the field of tank cleaning technology, specifically relating to a filter media cleaning device for filter tanks. Background Technology

[0002] When working normally, filter canisters typically trap impurities outside the filtration device. However, as impurities accumulate, the filter pores become clogged, resulting in a decrease in flow rate. Therefore, regular cleaning and maintenance of the filter canister are necessary. However, this cannot prevent the filter media from becoming contaminated over the years. Even after cleaning, excessive media buildup can leave residue that affects flow rate. Statistics show that currently used filter media needs to be replaced every 6 months to 2 years.

[0003] However, current market methods for cleaning filter media rely on top-down water flow, which results in incomplete and ineffective cleaning, ultimately reducing the filter's lifespan. Therefore, there is an urgent need to develop a device for thoroughly cleaning filter media to address these issues. Utility Model Content

[0004] The purpose of this invention is to solve the problem of incomplete and ineffective cleaning of filter media by filter tank cleaning devices, and to provide a filter media cleaning device that can clean filter media better and more thoroughly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a filter media cleaning device for a filter tank, comprising a filter tank, wherein a drain outlet is provided at the upper end of the filter tank and a water inlet is provided at the lower end, and an air inlet pipe is horizontally provided on the lower bottom side wall of the filter tank, connecting the inner and outer tanks. The outer end of the air inlet pipe is connected to an air source, and a valve is provided between the air inlet pipe and the air source. The water inlet is connected to a high-pressure water pump. The filter tank is provided with a filter media layer, a water distributor plate, an outer ring air distributor pipe and an inner ring air distributor pipe in sequence from top to bottom. The upper end surface of the water distributor plate is a convex spherical surface, the upper part of the spherical surface is covered with a filter media layer, and multiple filter holes are evenly distributed along the circumference on the spherical surface. The outer ring air distributor pipe and the inner ring air distributor pipe are both annular pipes, and multiple air holes are evenly distributed along the circumference on the upper end surface of both. The inner end of the air inlet pipe is connected to the outer ring air distributor pipe and the inner ring air distributor pipe in the horizontal direction respectively.

[0006] Furthermore, the filter media layer is composed of a pebble layer with a mesh size of 8-12 mm, a quartz sand layer with a mesh size of 2-4 mm, a quartz sand layer with a mesh size of 1-2 mm, and a manganese sand layer with a mesh size of 1-2 mm, laid from bottom to top.

[0007] Furthermore, the air intake source includes an air compressor and an air storage tank connected thereto, and the air storage tank is connected to a valve at the outer end of the air intake pipe through an air delivery pipe.

[0008] Furthermore, the valve is a DN50 valve.

[0009] Furthermore, the water distributor plate is made of steel plate.

[0010] The beneficial effects of this utility model are:

[0011] 1) In this utility model device, high-pressure gas bubbles can be evenly distributed inside the tank through the outer ring air distribution pipe and the inner ring air distribution pipe, and the injected water can be evenly distributed inside the tank through the water distributor plate. The combination of the two makes the bubbles and water flow evenly distributed and work together on the filter media layer. The filter media is stirred, rolled and rubbed against each other under the action of bubbles and water flow, which thoroughly washes away the impurities and detached biofilm on the surface of the filter media, thereby achieving the effect of cleaning the filter media in the filter tank cleanly and thoroughly.

[0012] 2) The outer and inner ring gas distribution pipes of this utility model are designed in a ring structure and have evenly opened holes, which is conducive to the uniform distribution of high-pressure gas bubbles inside the tank. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] In the diagram, 1-valve, 2-air inlet pipe, 3-outer ring air distribution pipe, 4-inner ring air distribution pipe, 5-, 6-water distributor plate, 7-filter tank, 8-drain outlet, 9-filter media layer, 10-water inlet, 11-air delivery pipe, 12-air storage tank. Detailed Implementation

[0015] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0016] Example: Figure 1 As shown, this utility model provides a filter media cleaning device for a filter tank, including a filter tank 7. The filter tank 7 has a drain outlet 8 at the upper end and a water inlet 10 at the lower end, and the water inlet 10 is connected to a high-pressure water pump. An air inlet pipe 2 connecting the inner and outer tanks is horizontally installed on the lower bottom side wall of the filter tank 7. The outer end of the air inlet pipe 2 is connected to an air source, and a valve 1 is also connected between the air inlet pipe 2 and the air source.

[0017] Valve 1 is a DN50 valve; the air intake source includes an air compressor and an air storage tank 12 connected to it. The air storage tank 12 is connected to valve 1 at the outer end of the air intake pipe 2 through an air delivery pipe 11.

[0018] The interior of the filter tank 7 is arranged from top to bottom as follows: filter media layer 9, water distributor plate 6, outer ring air distribution pipe 3, and inner ring air distribution pipe 4. The upper end surface of the water distributor plate 6 is a convex spherical surface, and the filter media layer 9 is laid on the upper part of the spherical surface. Multiple filter holes are also evenly distributed along the circumference on the spherical surface. The water distributor plate 6 is made of steel plate. The outer ring air distribution pipe 3 and the inner ring air distribution pipe 4 are both annular pipes, and multiple air holes 5 are evenly distributed along the circumference on the upper end surface of both. The inner end of the air inlet pipe 2 is connected to the outer ring air distribution pipe 3 and the inner ring air distribution pipe 4 in the horizontal direction.

[0019] The filter media layer 9 is composed of a pebble layer with a mesh size of 8-12mm, a quartz sand layer with a mesh size of 2-4mm, a quartz sand layer with a mesh size of 1-2mm, and a manganese sand layer with a mesh size of 1-2mm, laid from bottom to top.

[0020] Working process or principle:

[0021] When the gas storage pressure in the gas storage tank 12 reaches the specified value of 0.8MPa, the DN50 valve 1 is opened, and the gas instantly enters the filter tank 7. At the same time, the water from the high-pressure water pump enters the filter tank through the inlet 10, forming a gas-water combined state, and then passes through the water distributor plate 6.

[0022] The water distributor plate 6 can evenly distribute the water injected from the inlet 10 into the tank, so that the air bubbles and water flow are evenly distributed, and then work together on the filter media layer 9. The filter media layer 9 is composed of 8-12mm pebbles, 2-4mm quartz sand, 1-2mm quartz sand and 1-2mm manganese sand laid from bottom to top.

[0023] The filter media is agitated, tumbled, and rubbed against each other by the action of air bubbles and water flow, which thoroughly washes away the impurities and detached biofilm on the surface of the filter media and discharges it out of the filter tank through the drain outlet 8, thereby achieving the effect of cleaning the filter media in the filter tank.

[0024] In this device, high-pressure gas bubbles are evenly distributed inside the tank through the outer and inner ring air distribution pipes, and water is evenly distributed inside the tank through the water distributor plate. The combination of the two allows the bubbles and water flow to work together on the filter media layer. Under the action of the bubbles and water flow, the filter media is agitated, rolled, and rubbed against each other, thoroughly washing away the impurities and detached biofilm on the surface of the filter media, thereby achieving the effect of cleaning the filter media inside the filter tank thoroughly.

[0025] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A filter media cleaning device for a filter tank, characterized in that: The filter includes a filter tank (7), which has a drain outlet (8) at the top and a water inlet (10) at the bottom. An air inlet pipe (2) connecting the inner and outer tanks is horizontally arranged on the bottom side wall of the filter tank (7). The outer end of the air inlet pipe (2) is connected to an air source, and a valve (1) is also provided between the air inlet pipe (2) and the air source. The water inlet (10) is connected to a high-pressure water pump. The filter tank (7) has a filter media layer (9) and a water distributor plate (6) arranged sequentially from top to bottom. The outer ring air distribution pipe (3) and the inner ring air distribution pipe (4) are provided. The upper end of the water distributor plate (6) is a convex spherical surface. A filter material layer (9) is laid on the upper part of the spherical surface, and multiple filter holes are evenly distributed along the circumference on the spherical surface. The outer ring air distribution pipe (3) and the inner ring air distribution pipe (4) are both annular pipes, and multiple air holes (5) are evenly distributed along the circumference on the upper end of both. The inner end of the air inlet pipe (2) is connected to the outer ring air distribution pipe (3) and the inner ring air distribution pipe (4) in the horizontal direction respectively.

2. The filter media cleaning device for a filter tank according to claim 1, characterized in that: The filter media layer (9) is composed of a pebble layer with a mesh size of 8-12 mm, a quartz sand layer with a mesh size of 2-4 mm, a quartz sand layer with a mesh size of 1-2 mm, and a manganese sand layer with a mesh size of 1-2 mm, laid from bottom to top.

3. The filter media cleaning device for a filter tank according to claim 1, characterized in that: The air intake source includes an air compressor and an air storage tank (12) connected thereto. The air storage tank (12) is connected to the valve (1) at the outer end of the air intake pipe (2) through an air delivery pipe (11).

4. A filter media cleaning device for a filter tank according to claim 1 or 3, characterized in that: The valve (1) is a DN50 valve.

5. The filter media cleaning device for a filter tank according to claim 1, characterized in that: The water distributor plate (6) is made of steel plate.

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