CN220090596U - Water collecting, water distributing and air distributing device for filter tank - Google Patents
Water collecting, water distributing and air distributing device for filter tank Download PDFInfo
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- CN220090596U CN220090596U CN202320037573.6U CN202320037573U CN220090596U CN 220090596 U CN220090596 U CN 220090596U CN 202320037573 U CN202320037573 U CN 202320037573U CN 220090596 U CN220090596 U CN 220090596U
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- water
- distributing
- water collecting
- filter tank
- inner supporting
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 239000004576 sand Substances 0.000 claims description 33
- 230000000903 blocking effect Effects 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 14
- 238000001914 filtration Methods 0.000 abstract description 9
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000011010 flushing procedure Methods 0.000 description 11
- 238000005516 engineering process Methods 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005315 distribution function Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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- Filtration Of Liquid (AREA)
Abstract
The utility model relates to a water collecting, water distributing and gas distributing device of a water treatment filter, in particular to a water collecting (water distributing and gas distributing) device of a v-shaped filter, a biological filter and a denitrification filter. The water collecting (water distributing and gas distributing) device has the advantages of simple integral structure, capability of effectively intercepting the water filtering material, capability of timely finding out faults, no need of cleaning the filtering material for external maintenance, and low manufacturing cost and use cost.
Description
Technical field:
the utility model relates to a water collecting, water distributing and gas distributing device of a water treatment filter, in particular to a water collecting, water distributing and gas distributing device of a v-shaped filter, a biological filter and a denitrification filter.
The background technology is as follows:
at present, a filter technology is widely adopted in tap water treatment and advanced sewage treatment. The filter tank is generally composed of a water inlet and distribution system, a filter material, a water outlet and collection system and a back flush water distribution and gas distribution system, wherein the water outlet and collection system and the back flush water distribution system of the filter tank are generally composed of a water outlet tank at the bottom of the filter tank and a bottom grading cushion layer, and the back flush gas distribution system is composed of a gas distribution pipe and a bottom grading cushion layer. In order to distribute water and gas more uniformly, filter plates, filter caps, filter bricks (T-shaped and S-shaped) and the like are developed in recent years to replace the graded bedding layers, and the Pasawn company under German European Cheng Teng group adopts a filter screen type double-layer gas-water distribution system to replace the graded bedding layers, a water collecting and back flushing water distribution system. The problems of uneven water distribution and gas distribution of the initial filter tank and insufficient filter material brought out by discharged water are solved to a certain extent by the technology, but the technology still has certain defects, when a water distribution and gas distribution system at the bottom fails, the water distribution and gas distribution system at the bottom cannot be found and maintained in time, and a large amount of manpower and material resources are required to be spent to take out the upper filter material to the outside of the tank during maintenance.
The utility model comprises the following steps:
the utility model aims to solve the technical problems of the prior art, and provides the water collecting, water distributing and air distributing device which has simple integral structure, can effectively intercept the water outlet filter material, can timely find faults, does not need to clean the filter material for external maintenance and repair, and has low manufacturing cost and use cost.
The utility model solves the problems and adopts the following technical proposal: a water collecting, water distributing and air distributing device of a water treatment filter tank consists of an inner supporting layer (1), a sand blocking layer (2), a shell (3), an inner end flange (4), an outer end flange (5), a wall bushing (6), a valve I (7), a water collecting pipe (8), a valve II (9) and a sealing piece (10). The method is characterized in that: the inner supporting layer (1) and the sand blocking layer (2) are positioned in the shell (3), are connected with the wall bushing (6) through the outer end flange (4), and can be taken out and installed from the shell (3) after the bolts of the outer end flange (6) are disassembled.
When the device is installed and operated, the inner end flange (4) on the shell (3) is fixed with the inner end flange of the wall bushing (6), the shell (3) is fixed at the bottom of the filter tank by the fixing piece, and the cushion layer and the filter material are sequentially filled. Then the inner supporting layer (1) and the sand blocking layer (2) are inserted into the shell (3), the inner supporting layer is fixed with the outer end of the wall bushing (6) through the outer end flange (5), the first valve (7), the water collecting pipe (8) and the second valve (9) are connected to the water outlet main pipe of the filter tank, and the back flushing water inlet pipe and the air inlet pipe are connected to the water collecting pipe (8) through the valves. When the incoming water to be filtered enters the filter material through the water distribution system at the upper part of the filter tank, flows into the bottom of the filter tank in a gravity flow mode, is collected by the shell (3), the sand blocking layer (2) and the inner supporting layer (1) and enters the water collecting pipe (8), then enters the subsequent clean water tank through the main water outlet pipe, and the water level at the upper part of the filter tank is kept in a constant liquid level state by adjusting the opening degree of the valve II (9) in real time. When the filter is blocked after the filter is operated for a period of time, a back flushing program is started, a valve II (9) is closed, and a back flushing air inlet pipe and a water inlet pipe are opened to back flush the filter. Stopping intaking when blocking sand layer (2) takes place seriously or damage, discharging ponding in the filtering pond, tearing open outer end flange (5), taking out sand layer (2) and interior supporting layer (1) and maintaining or changing, this work is accomplished the back and is installed back shell (3) with sand layer (2) and interior supporting layer (1), owing to interior supporting layer has soft sealing piece (10), can be with the filter material that gets into in shell (3) during maintenance clear away shell (3) through the sand hole to gas and water can not take place the short stream from the sand hole during the back flush.
The inner supporting layer (1) is composed of a plurality of sections and can be freely disassembled and assembled. In order to adapt to maintenance in a narrow space, a supporting layer (1) and a sand blocking layer (2) in a single water collecting, distributing and distributing pipe are segmented, a buckle connection is arranged at an interface, and the specific length of each segment is determined according to the actual condition of a filter tank.
According to the actual situation, the integrated composite inner supporting layer (1) and the sand blocking layer (2) can be manufactured by adopting a die, and the integrated composite inner supporting layer (1) and the sand blocking layer (2) can also be manufactured separately.
In order to ensure the uniformity of water collection and air distribution, the inner supporting layer (1) is provided with water collection and air guide holes. The sizes of the water collecting and air guiding holes are arranged according to the design flow rate and the flow velocity, the pore diameter ranges from 0 mm to 100 mm, and the distribution rate of the holes on the inner supporting layer (1) ranges from 0% to 100%.
For effectively intercepting the sand screen, a sand blocking layer (2) is arranged. According to the requirements of different kinds of filter tanks on filter materials, the width, the length and the distribution rate of gaps of the sand blocking layer (2) are 0-2 mm according to the actual filter material design, the length is 0-1000 mm, and the distribution rate of the gaps on the sand blocking layer (2) is 0-100%; in order to be more beneficial to reducing the pressure loss, the gap structure is in a shape of a Chinese character '1' and a wedge shape.
The shell (3) has the functions of preventing the filter material from directly contacting the sand blocking layer (2) and simultaneously has certain water and gas distribution functions, and in order to uniformly distribute water and gas, the shell (3) is provided with small holes, the aperture range of the small holes is 0-10 mm, and the distribution rate of the holes on the shell (3) is 0-100%; in order to timely discharge sand entering the shell (3) during maintenance, the tail end of the shell (3) is provided with a sand discharge hole.
Description of the drawings:
FIG. 1 is an overall schematic of the present utility model;
FIG. 2 is a cross-sectional view of a single water collection, distribution and distribution pipe.
1. The inner support layer, 2, the sand blocking layer, 3, the shell, 4, the inner end flange, 5, the outer end flange, 6, the wall bushing, 7, valve one, 8, the water collecting pipe 9, valve two, 10, sealing piece.
Specific embodiments:
the parameters of the utility model are described in further detail below in conjunction with the accompanying examples.
Case 1: the daily filtered water quantity was 960 tons.
Setting filtering and backwashing conditions: the filtering speed of the filter tank is 5m/h, the air flow rising speed is 90m/h when the filter tank is backwashed and air washed, the water flow rising speed is 50m/h when the filter tank is backwashed and washed, the air flow speed in a water collecting pipe is 15 m/s when the filter tank is backwashed, the water flow speed in a water collecting pipe is 2.0m/s when the filter tank is backwashed, the water collecting, water distributing and air distributing pipe inner air flow speed is 12/s when the filter tank is backwashed, the water collecting, water distributing and air distributing pipe inner water flow speed is 1.5/s when the filter tank is backwashed, the water distributing and air distributing hole water flow speed is 1.0m/s when the filter tank is backwashed, and the air flow speed is 8m/s.
And calculating the total area of the filter tank to be 8.0 square meters according to a related formula, wherein the size of the tank body is designed to be 4 meters long, 2 meters wide and 5 meters deep. The cross section area of the water collecting pipe (8) is 0.069 square meter, DN300 steel pipes are adopted, the total cross section area of the inner supporting layer (1) is 0.0907 square meters, and 5 DN150 stainless steel pipes are adopted as the inner supporting layer (1). The total area of the openings on the inner supporting layer (1) is 0.136 square meter, the opening ratio is 1.44 percent, and the opening diameter is phi 6. The sand blocking layer (2) adopts wedge-shaped filtering slits, the slits are 0.25 mm, the total slit area is 0.55 square meter, the distribution rate of the slits on the sand blocking layer is 5.76%, the total area of open pores on the sand blocking layer is 0.136 square meter, the aperture ratio is 1.44%, and the aperture diameter is phi 2.5.
Case 2: the daily filtered water volume was 25000 tons.
Setting filtering and backwashing conditions: the filtering speed of the filter tank is 5m/h, the rising speed of the air washing airflow during back flushing of the filter tank is 90m/h, the rising speed of the water washing airflow during back flushing of the filter tank is 50m/h, the air flow speed in the water collecting pipe during back flushing is 15 m/s, the water flow speed in the water collecting pipe during back flushing is 2.0m/s, the water collecting, water distributing and air distributing pipe inner air flow speed during back flushing is 12/s, the water collecting, water distributing and air distributing pipe inner water flow speed during back flushing is 1.5/s, the water distributing and air distributing hole water flow speed during back flushing is 1.0m/s, and the air flow speed during back flushing is 8m/s.
The total area of the filter tanks is 208.3 square meters according to a related formula, 5 groups of filter tanks are established, and the area of each group of filter tanks is 41.7 square meters. The cell body is designed to be 10.0 m long and 4.17 m wide. The cross section area of the water collecting pipe (8) is 0.36 square meter, DN700 steel pipes are adopted, the total cross section area of the inner supporting layer (1) is 0.473 square meters, and 22 DN150ABS pipes are adopted as the inner supporting layer (1). The total area of the openings on the inner supporting layer (1) is 0.711 square meter, the opening ratio is 0.68 percent, and the opening diameter isThe sand blocking layer (2) adopts wedge-shaped filtering slits, the slits are 0.25 mm, the total slit area is 2.874 square meters, and the distribution rate of the slits on the sand blocking layer is 2.62%. The total area of the upper openings is 0.711 square meter, the aperture ratio is 0.62 percent, and the aperture diameter is +.>
Claims (5)
1. The water collecting, water distributing and air distributing device for the filter tank consists of an inner supporting layer (1), a sand blocking layer (2), a shell (3), an inner end flange (4), an outer end flange (5), a wall bushing (6), a valve I (7), a water collecting pipe (8), a valve II (9) and a sealing sheet (10); the method is characterized in that: the inner supporting layer (1) and the sand blocking layer (2) are positioned in the shell (3), and are connected with the wall bushing (6) through the outer end flange (5), and the inner supporting layer (1) and the sand blocking layer (2) can be taken out from the shell (3) and installed after the bolts of the outer end flange (5) are disassembled.
2. The water collecting, distributing and gas distributing device of the filter tank according to claim 1, which is characterized in that: the inner supporting layer (1) is provided with small holes, the aperture range of the small holes is 0 mm to 100 mm, and the distribution rate of the holes on the inner supporting layer (1) is 0 to 100 percent; the inner supporting layer (1) is composed of a plurality of sections and can be freely disassembled and assembled; the tail end of the inner supporting layer (1) is provided with a sealing sheet (10).
3. The water collecting, distributing and gas distributing device of the filter tank according to claim 1, which is characterized in that: the sand blocking layer (2) is formed by multiple sections and can be freely disassembled and assembled; the sand blocking layer (2) is provided with water passing air gaps, the width of each gap ranges from 0 mm to 2 mm, the length of each gap ranges from 0 mm to 1000 mm, and the distribution rate of each gap on the sand blocking layer (2) ranges from 0 to 100%; the gap has a 1-shaped structure and a wedge-shaped structure.
4. The water collecting, distributing and gas distributing device of the filter tank according to claim 1, which is characterized in that: the shell (3) is provided with small holes, the aperture range of the small holes is 0 to 10 mm, and the distribution rate of the holes on the shell (3) is 0 to 100 percent; the tail end of the shell (3) is provided with a sand discharging hole.
5. The water collecting, distributing and gas distributing device of the filter tank according to claim 1, which is characterized in that: the inner supporting layer (1) and the sand blocking layer (2) are in the form of a single separation type and an integrated composite type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320037573.6U CN220090596U (en) | 2023-01-07 | 2023-01-07 | Water collecting, water distributing and air distributing device for filter tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320037573.6U CN220090596U (en) | 2023-01-07 | 2023-01-07 | Water collecting, water distributing and air distributing device for filter tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220090596U true CN220090596U (en) | 2023-11-28 |
Family
ID=88867667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320037573.6U Active CN220090596U (en) | 2023-01-07 | 2023-01-07 | Water collecting, water distributing and air distributing device for filter tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220090596U (en) |
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2023
- 2023-01-07 CN CN202320037573.6U patent/CN220090596U/en active Active
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