CN214512925U - Gas distribution system additionally arranged in water distribution channel of rapid filter - Google Patents
Gas distribution system additionally arranged in water distribution channel of rapid filter Download PDFInfo
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- CN214512925U CN214512925U CN202022468626.9U CN202022468626U CN214512925U CN 214512925 U CN214512925 U CN 214512925U CN 202022468626 U CN202022468626 U CN 202022468626U CN 214512925 U CN214512925 U CN 214512925U
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Abstract
The utility model provides an add gas distribution system in fast filtering pond water distribution channel, be equipped with central canal in the fast filtering pond, the check is established to central canal both sides, and the water distribution channel is established to central canal bottom, and the water distribution gas distribution system of water distribution channel both sides for straining the check, and both sides set up the gas distribution side pipe in its characterized in that water distribution channel, and gas distribution side pipe and intake pipe intercommunication, gas distribution side pipe lower part side direction are seted up the gas distribution hole, set up the corresponding side wall gas distribution hole on the water distribution channel side wall. The utility model provides a method for improving the back flushing of air water in a rapid filter tank, wherein a distributing square tube is attached to two side walls in an original distributing channel and is covered with a distributing hole to directly distribute air to form a small distributing channel, thereby forming a water and gas distributing channel with one big part and two small parts which are independent mutually. When the air water of the filter is backflushed, the air water and the water respectively walk in the channels without mutual interference, and the air and the water are simultaneously ventilated and circulated in the water distribution channel, so that the filter operates stably.
Description
Technical Field
The utility model relates to a water treatment technical field is an add gas distribution system in rapid filter distribution canal, and concretely relates to increases distribution side's pipe in distribution canal, forms gas, the gas distribution system that moisture was opened.
Background
The rapid filter tank usually adopts a large-resistance water distribution system with a Chinese character feng-shaped pipe, single water washing is carried out, a thin-layer graded filter material is adopted as a filter material, and the total height of the filter tank is smaller. The rapid filter has obvious defects that the single-water washing is relatively poor in washing effect, mud balls are easy to accumulate in a filter layer, normal filtering is affected, and the filtering effect of the graded filter material is not as good as that of a homogeneous thick-layer filter material. At present, a newly-built filter tank mostly adopts a homogeneous thick-layer filter material and a gas-water backflushing mode, and the trend of increasing gas flushing is to increase gas flushing when a thickened filter layer of a built single-water flushing filter tank is reformed in old water plant reformation.
The fast filter tank has the following problems that the height of the filter tank is limited, the thickness of a filter layer needs to be increased during modification, the occupied height of a filter tank filter plate for water distribution and air distribution at the bottom of the fast filter tank is increased, the total height requirement is high, the height of the filter tank filter plate can be reduced by adopting a bread tube system compared with that of a filter head filter plate, but a water distribution channel at the bottom of a central channel of the fast filter tank is designed according to the strength during single water flushing, the requirement of simultaneous water distribution and air distribution during air flushing is not considered, a bottom plate of the water distribution channel is usually level with a filter grid bottom plate, lateral water distribution holes of the water distribution channel are usually attached to the bottom of the fast filter tank, if the bread tube is added, the lateral water distribution holes also need to be opened very low and are close to the water distribution holes, if the backflushing air is directly injected into the water distribution channel, and air and water are simultaneously fed, the air and water flow rate is increased because the air-water interface is greatly pressed, and the air-water flow rate is increased, and the air-water interface is inevitably unstable.
SUMMERY OF THE UTILITY MODEL
The patent provides an air distribution system additionally arranged in a water distribution channel of a rapid filter tank, which aims to avoid the problems in the background technology and provides a method for air-water back flushing reconstruction of the rapid filter tank.
In order to solve the technical problem, the technical scheme of the utility model as follows: the air distribution system is characterized in that air distribution square pipes are arranged on two sides in the water distribution channel and communicated with an air inlet pipe, air distribution holes are formed in the side direction of the lower parts of the air distribution square pipes, and corresponding side wall air distribution holes are formed in the side walls of the water distribution channel.
Furthermore, the air distribution branch pipe is inserted into the side wall air distribution hole from the side of the filter lattice to be connected with the air distribution square pipe air distribution hole, and the side wall air distribution hole is blocked by adopting a sealing material.
Furthermore, the top plate of the water distribution channel on the air inlet side is locally raised, and is sealed by a stainless steel plate to form an air inlet chamber, the air inlet chamber is connected with an air inlet pipe, the net height of the air inlet chamber is greater than the diameter of the air inlet pipe, the two sides of the air inlet chamber are communicated with a square distribution pipe through a vertical square connecting pipe, and the top of the air inlet chamber is provided with an exhaust measure.
Furthermore, the air distribution square pipe is flat and long and is installed by being tightly attached to the side wall of the water distribution channel, the air distribution hole is parallel to the bottom of the air distribution square pipe, and the level of the air distribution hole can be guaranteed by adjusting the level of the square pipe. The air distribution square pipe is a flat and long section, and the width direction is reduced so as to reduce the influence on the water passing section.
Furthermore, the air distribution square tube is of a segmented assembly type and is fixed on the side wall of the water distribution channel through an anchor ear, the anchor ear is arranged at the splicing position of the air distribution square tube, and a sealing ring is arranged between the anchor ear and the air distribution square tube.
Furthermore, the aperture of the side wall air distribution hole is larger than that of the air distribution hole on the air distribution square pipe, and the bottom of the air distribution square pipe is lower than that of the side wall air distribution hole, so that the bottom of the air distribution square pipe can cover the side wall air distribution hole.
Furthermore, the connecting square pipe and the gas distribution square pipe are made of stainless steel materials.
Furthermore, the distance between the distribution square pipes on the two sides of the distribution channel is not less than 0.7m, so that the maintenance personnel can conveniently pass through the distribution square pipes.
The utility model discloses increase independent gas distribution system and separate with the water distribution in the distribution channel, form water distribution, distribution binary channels. The air passes through the air inlet pipe, the air inlet chamber, the connecting square pipe and the air distribution square pipe in sequence, the lower part of the air distribution square pipe is laterally provided with a hole, the air distribution square pipe forms a lateral independent air distribution channel through an air distribution hole (air distribution branch pipe), and the air is delivered to a water distribution and air distribution system below the filter bed. Thus, the original water and gas distribution channel forms a large-small independent water and gas distribution channel. The utility model has the advantages that: the gas distribution square pipe is added in the water distribution channel of the rapid filter tank to form an independent water and gas distribution system, and when gas and water are flushed simultaneously, the gas and the water in the channel are not interfered with each other, so that the stable operation of gas flushing and back flushing is ensured. When the filter tank is backflushed by air water, the water flushing strength is reduced compared with that of single water flushing, the original section is reduced after the air distribution pipe is installed, the water passing capacity is not influenced, the uniformity and stability of water distribution and air distribution are ensured, a practical method is provided for the gas water backflushing transformation of the rapid filter tank, and the method can also be used for newly building the gas water backflushing filter tank.
Drawings
FIG. 1 is a diagram of the position of a gas distribution square tube.
Fig. 2 is a detailed view of the air distribution square tube.
FIG. 3 is a system diagram of an embodiment of a gas distribution system.
Fig. 4 is a cross-sectional view of a gas distribution system.
The figure includes: the gas distribution device comprises a central channel 1, a water distribution channel 2, a gas distribution square pipe 3, gas distribution holes 4, a hoop 5, gas distribution branch pipes 6, side wall gas distribution holes 7, an air inlet chamber 8, a rust steel plate 9, an exhaust pipe 10, an air inlet pipe 11, a vertical connecting square pipe 12, water distribution branch pipes 13 and a water inlet pipe 14.
Detailed Description
Stainless steel air distribution square pipes 3 are arranged on two sides in an air distribution channel 2 at the bottom of a central channel 1 of the filter, air distribution holes 4 are laterally formed in the lower portion of each square pipe and correspond to side wall air distribution holes 7, the positions of the air distribution holes are aligned with the positions of original air distribution holes up and down, and when a bread pipe is used for distributing water and air, air distribution branch pipes 6 are inserted into the air distribution holes 7 and are directly connected with the air distribution square pipes. The width of the water distribution channel 2 is limited, the square tube is mounted by adopting a flat and long wall, and the middle part of the square tube is provided with a water passing channel and a mounting space. The width of the water distribution channel is generally 1.0-1.4 m, the height of the square pipe is 0.25-0.8 m, the width is 0.1-0.2 m, the diameter of the lateral opening air distribution hole at the lower part is 25-50 mm, the diameter of the opening hole on the side wall is 30-60 mm, the air distribution square pipe is fixed on a wall by using an anchor ear 5 after being leveled, the anchor ear is installed at the splicing part and is used for sealing, a sealing ring can be arranged between the anchor ear and the air distribution square pipe to meet the sealing requirement, and the anchor ear is staggered with the water distribution hole. The air distribution square pipe can directly distribute air to the filter head filter plate through the air distribution holes, or can distribute air to the bread pipe one by one through the transverse air distribution branch pipe, the air distribution branch pipe 6 is inserted into the air distribution holes from the side of the filter grids, and the side wall air distribution holes 7 are blocked by sealing materials. The top layer of the water distribution channel at the air inlet end is locally opened and is lifted and sealed by steel concrete, the lifted space is sealed by a stainless steel plate 9 to form an air inlet chamber 8, the net height of the air inlet chamber 8 is greater than the diameter of an air inlet pipe 11, and the two sides of the air inlet chamber are connected with an air distribution square pipe 3 by a vertical connecting square pipe 12. The top of the air inlet chamber 8 is provided with an exhaust hole 10. After the air distribution square pipe is installed, the middle distance is not less than 0.7m, and the air distribution square pipe is convenient for maintainers to pass through.
Claims (7)
1. The air distribution system is characterized in that air distribution square pipes are arranged on two sides in the water distribution channel and communicated with an air inlet pipe, air distribution holes are formed in the side direction of the lower parts of the air distribution square pipes, and corresponding side wall air distribution holes are formed in the side walls of the water distribution channel.
2. The air distribution system additionally arranged in the water distribution channel of the rapid filter according to claim 1, wherein a top plate of the water distribution channel at the air inlet side is locally raised, an air inlet chamber is formed at the lower part of the water distribution channel, the air inlet chamber is connected with an air inlet pipe, the net height of the air inlet chamber is greater than the diameter of the air inlet pipe, two sides of the air inlet chamber are communicated with an air distribution square pipe through vertical connecting square pipes, and an exhaust measure is arranged at the top of the air inlet chamber.
3. An air distribution system additionally arranged in a water distribution channel of a rapid filter according to claim 1, wherein the air distribution branch pipe is inserted into a side wall air distribution hole from the side of the filter cell to be connected with an air distribution square pipe air distribution hole, and the side wall air distribution hole is sealed by a sealing material.
4. The air distribution system additionally arranged in the water distribution channel of the rapid filter according to claim 1, wherein the air distribution square pipe is flat and long and is closely attached to the side wall of the water distribution channel, the air distribution holes are parallel to the bottom of the air distribution square pipe, and the level of the air distribution holes can be ensured by adjusting the level of the square pipe.
5. The air distribution system additionally arranged in the water distribution channel of the rapid filter according to claim 1, wherein the air distribution square pipe is in a sectional assembly type and is fixed on the side wall of the water distribution channel through an anchor ear, the splicing part of the air distribution square pipe is provided with the anchor ear, and a sealing ring is arranged between the anchor ear and the air distribution square pipe.
6. The air distribution system added to the water distribution channel of the rapid filter according to claim 1, wherein the aperture of the side wall air distribution holes is larger than that of the air distribution holes on the air distribution square pipe, and the bottom of the air distribution square pipe is lower than that of the side wall air distribution holes, so that the bottom of the air distribution square pipe can cover the side wall air distribution holes.
7. An air distribution system additionally arranged in a water distribution channel of a rapid filter according to claim 1, wherein the space between air distribution square pipes at two sides of the water distribution channel is not less than 0.7 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022468626.9U CN214512925U (en) | 2020-10-30 | 2020-10-30 | Gas distribution system additionally arranged in water distribution channel of rapid filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022468626.9U CN214512925U (en) | 2020-10-30 | 2020-10-30 | Gas distribution system additionally arranged in water distribution channel of rapid filter |
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| CN214512925U true CN214512925U (en) | 2021-10-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112495006A (en) * | 2020-10-30 | 2021-03-16 | 上海市政工程设计研究总院（集团）有限公司 | Gas distribution system additionally arranged in water distribution channel of rapid filter |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112495006A (en) * | 2020-10-30 | 2021-03-16 | 上海市政工程设计研究总院（集团）有限公司 | Gas distribution system additionally arranged in water distribution channel of rapid filter |
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