CN104623935B - It is equipped with the small-sized rapid filter and its filtering and backwash technique of air-water backwashing system - Google Patents
It is equipped with the small-sized rapid filter and its filtering and backwash technique of air-water backwashing system Download PDFInfo
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- CN104623935B CN104623935B CN201310543532.5A CN201310543532A CN104623935B CN 104623935 B CN104623935 B CN 104623935B CN 201310543532 A CN201310543532 A CN 201310543532A CN 104623935 B CN104623935 B CN 104623935B
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Abstract
The invention discloses a kind of small-sized rapid filter for being equipped with air-water backwashing system, including filter tank main body, it is characterized in that filter material layer, filter material layer bottom are provided with the filter tank main body is provided with water and air distributing pipe, the water and air distributing pipe is used as captation and the water and air distributing device of air-water backwashing simultaneously, water and air distributing pipe tube top and side wall are provided with backwash stomata, and ttom of pipe is provided with backwash water hole.Set supporting layer respectively from bottom to top in filter tank bottom, water and air distributing pipe, upper supporting layer, filter material layer, the filter tank side is connected with inlet channel, and opposite side is connected by water and air distributing pipe with water and air distributing room, described inlet channel one end sets water inlet pipe, the other end sets backwash drainpipe, and water and air distributing room one end sets backwash tracheae and backwash water pipe, and the other end sets outlet pipe.When rapid filter is run, filtering velocity 8m/h, filter cycle, 24 ~ 48h, handled water 700m3/d.According to water requirements, many sets in parallel operation can be set in rapid filter, and dilatation is convenient, substantially without civilwork engineering quantity.
Description
Technical field
The present invention relates to water process field of purification, and in particular to a kind of small-sized rapid filter of outfit air-water backwashing system and
It is filtered and backwash technique, can be applied to the filtering water-purifying process of small-scale water system.
Background technology
With health ministry and the new standard promulgation of Ministry of Construction's Drinking Water water quality, domestic each water undertaking will carry
High effluent quality is used as cardinal task.In the purification technique of drinking water, filtering is not only in that the turbidity of further reduction water, and
And Organic substance in water, bacterium or even virus etc. will be partially removed with the haze reduction of water, it is to improve effluent quality, ensure
The important measures of water hygiene safety.The backwash in filter tank is the committed step in whole filtering engineering, good flushing skill
Art can not only effectively remove the deposition in filtering layer, filter tank is recovered preferable filtering function, and can extend filter cycle, saving
Flushing water, reduction energy consumption.
It is the important component of Small town economy and social sustainable development that samll cities and towns, which supply water,.And it is current, for China
In samll cities and towns' water system pollution of waterhead be on the rise, construction of water supply facilities imperfection, water supply scale less than normal the problems such as, country carries
The construction for accelerating samll cities and towns' water system is gone out, has ensured the water quality safety of drinking water, the present invention should be directed to samll cities and towns' water supply scale
Small the characteristics of, a kind of integrated technique that water-purifying process is filtered suitable for samll cities and towns is invented, it is small with floor space, do not have substantially
There is civilwork engineering quantity, water supply scale dilatation is simple and easy to do, so as to ensure the fast development of samll cities and towns' water system.
The content of the invention
It is an object of the present invention to provide a kind of small-sized rapid filter for being equipped with air-water backwashing system, small city disclosure satisfy that
Town is intensive, the need for small-scale water system.
To achieve these goals, technical scheme is as follows：It is a kind of to be equipped with the small-sized fast of air-water backwashing system
Filter tank, including filter tank main body, it is characterised in that filter material layer, filter material layer bottom are provided with the filter tank main body and is provided with water and air distributing
Pipe, the water and air distributing pipe is simultaneously as captation and the water and air distributing device of air-water backwashing, water and air distributing pipe tube top and side
Wall is provided with backwash stomata, and ttom of pipe is provided with backwash water hole.Set supporting layer, water and air distributing respectively from bottom to top in filter tank bottom
Pipe, upper supporting layer, filter material layer, the filter tank side is connected with inlet channel, and opposite side passes through water and air distributing pipe and water and air distributing room
Connection, described inlet channel one end sets water inlet pipe, and the other end sets backwash drainpipe, and water and air distributing room one end sets anti-
Tracheae and backwash water pipe are rinsed, the other end sets outlet pipe.
It is a further object to provide a kind of filtering of small-sized rapid filter and backwash technique, small city disclosure satisfy that
Town is intensive, the need for small-scale water system.
To achieve these goals, technical scheme is as follows：A kind of filtering of small-sized rapid filter and backwash work
Skill, it is characterised in that：During filtering, backwash drainpipe is closed, and backwash water pipe is closed with backwash tracheae, and water is intake certainly before filter
Pipe enters inlet channel, and filter tank is overflowed into by washed-out sand rhone, after filter material layer, supporting layer, enters water and air distributing by water and air distributing pipe
Room, passes through the outlet pipe water outlet of water and air distributing room；During backwash, outlet pipe is closed, and water inlet pipe closes backwashing water self counter flushing
Water pipe enters water and air distributing room, and air compressor machine compressed air self counter flushing tracheae enters water and air distributing room, backwashing water and backwash
Gas is evenly distributed to filtrate after water and air distributing tube section forms stable gas-water interface face by the water and air distributing hole of water and air distributing pipe
In layer, backwashing wastewater falls into inlet channel by washed-out sand rhone, is discharged by drainpipe, and backwash waste gas directly overflows.
The small-sized rapid filter of the present invention can effectively remove the turbidity of accessing pending water, meet《Code for design of outdoor water supply engineering》Have
The requirement of filter tank design parameter is closed, the operational reliability of water system is ensured.It is equipped with the small-sized fast filter of air-water backwashing system
Pond, more preferably, filter cycle is longer, and washing water quantity is less for developing result.Particularly such small-sized rapid filter is very suitable for small
The construction of the small-scale water system such as cities and towns, rural area, ensure samll cities and towns, rural area water supply quality it is significant.The present invention's
Advantage is using water and air distributing pipe simultaneously as captation and the water and air distributing device of air-water backwashing, disclosure satisfy that small city
Town is intensive, the need for small-scale water system.
Brief description of the drawings
Fig. 1 starves the installation sectional view and filter tank floor plan of water and air distributing room connection for the water and air distributing pipe of the present invention.
Fig. 2 is the profile in filter tank.
Fig. 3 is the structural representation of water and air distributing pipe.
Fig. 4 is Fig. 3 A-A sectional views.
Fig. 5 is the installation sectional view of water and air distributing pipe.
Embodiment
As depicted in figs. 1 and 2, a kind of small-sized rapid filter for being equipped with air-water backwashing system, including filter tank main body 1, it is special
Levy and be that filter material layer 5, the bottom of filter material layer 5 are provided with the filter tank main body is provided with water and air distributing pipe 3, the water and air distributing pipe is simultaneously
As captation and the water and air distributing device of air-water backwashing, water and air distributing pipe tube top and side wall are provided with backwash stomata, pipe
Bottom is provided with backwash water hole.The rapid filter is using water and air distributing device of the water and air distributing pipe as air-water backwashing.Rapid filter
Filter area is 4m2, planar dimension is 1.00m × 4.00m, and supporting layer 2 under 0.21m are set respectively from bottom to top from filter tank bottom,
Water and air distributing pipe 3, upper supporting layer 4,1.20m filter material layers 5.Rapid filter is also equipped with an inlet channel 6, a He of washed-out sand rhone 9
One backwash water and air distributing room 10.Inlet channel 6 sets DN150 water inlet pipe 7 and DN200 backwash drainpipe
8, inlet channel 6 is connected with washed-out sand rhone 9, the DN200 backwash discharge backwashing wastewaters of drainpipe 8.Water and air distributing room 10 is set
A piece DN100 outlet pipe 11 a, DN250 backwashes water pipe 12, and a DN80 backwashes tracheae 13, and four DN40 match somebody with somebody gas branch pipe
16.Water and air distributing pipe 3 amounts to four, is arranged in along filter tank main body 1 is parallel longitudinal on supporting layer II, pipe wide 12 ~ 15mm, Guan Zhong
In the heart away from 230 ~ 270mm.Single water and air distributing pipe is by DN40 stomata interface 21 and a water hole interface 20 with matching somebody with somebody
Water gas distributing chamber connects, and wherein stomata interface with gas branch pipe 16 and backwash tracheae 13 by connecting, water hole interface and backwash
Water pipe is connected.The filter tank main body is additionally provided with overflow pipe 14 and enters sand hole 15.
Fig. 3 is the structural representation of water and air distributing pipe, and the top of water and air distributing pipe 3 is provided with air distribution hole 17, and water distribution is matched somebody with somebody
Tracheae bottom is provided with distributing hole 18, and described water and air distributing pipe one end is provided with water hole interface 20 and stomata interface 21, the other end
Provided with shrouding, shrouding is provided with shrouding air distribution hole 19.The water and air distributing pipe Top section is trapezoidal, trapezoidal hypotenuse and level
The angle of line is 40 ~ 50o, the water and air distributing pipe bottom section is rectangle.The top of the water and air distributing pipe is trapezium structure,
It can be increased by bearing capacity.A row side air distribution hole 22, the water and air distributing are provided with the top of the water and air distributing pipe
The both sides of pipe offer a row side air distribution hole 22 respectively, and the side air distribution hole is arranged on the nearly top in water and air distributing pipe side
At slope, water and air distributing bottom of the tube is provided with two deploying water holes.To ensure the uniformity of distributing hole water distribution, the water and air distributing bottom of the tube
Along pipe range direction offer it is some assemble water hole, since water inlet end, some water hole apertures that assemble gradually increase.
Distributing hole increases and increased with water inlet end distance, and its theoretical foundation considers as follows：
Wherein q is orifice flow；μ is excessively stream coefficient；A is orifice area；H is water and air distributing pipe port head；X is water distribution
Distribution pipe port arrives the distance between aperture；L is the length of water and air distributing pipe；G is acceleration of gravity；K is constant.
Longer to the distance between aperture by the visible water and air distributing pipe port of formula, orifice flow is smaller, therefore, with water distribution
Distribution pipe port is to the increase of distance between aperture, and water distribution uniformity can be increased by suitably increasing port size so that orifice flow
It is as far as possible uniform.
When rapid filter is filtered, water enters inlet channel from water inlet pipe before filter（Drainpipe is backwashed to close）, by washed-out sand rhone
Filter tank is overflowed into, after filter material layer, supporting layer, water and air distributing room is entered by water and air distributing pipe, passes through the outlet pipe of water and air distributing room
Flow out rapid filter（DN250 backwashes water pipe, DN40 gas-distribution pipes are closed）.When rapid filter is backwashed, backwashing water recoils from DN250
Wash water pipe enters water and air distributing room, and air compressor machine compressed air enters water and air distributing room from DN80 backwash tracheaes（DN100 outlet pipes
Close）, backwashing water and backwash gas are after the bread tube section of water and air distributing pipe forms stable gas-water interface face, by bread pipe
Water and air distributing hole be evenly distributed in filter material layer, backwashing wastewater falls into inlet channel by washed-out sand rhone, by DN200 drainings
Pipe discharges rapid filter（50 water inlet pipes are closed）, backwash waste gas and directly overflow.
Water factory realizes water and air distributing using strainer head+water and air distributing room mostly in the prior art, is mainly used in rule
The larger water factory of mould.The present invention uses the water and air distributing pipe of special cross section form（Using top domatic section structure, upper strata distribution,
Lower floor's water distribution）, stable gas-water interface face is realized, old water factory's rapid filter transformation and small-sized filter tank is mainly used in.This hair
Water and air distributing pipe completes the water collecting function of water after filter and the water and air distributing function of backwash simultaneously, and water and air distributing pipe plays collection during filtering
Water function；Water and air distributing function from during backwash.
The present invention can effectively remove the turbidity of accessing pending water, meet《Code for design of outdoor water supply engineering》Relevant filter tank design ginseng
Several requirements, ensures the operational reliability of water system.When rapid filter is run, filtering velocity 8m/h, filter cycle, 24 ~ 48h, handled water
Measure 700m3/d.According to water requirements, many sets in parallel operation can be set in rapid filter, and dilatation is convenient, substantially without civilwork engineering quantity.
Claims (5)
1. a kind of small-sized rapid filter for being equipped with air-water backwashing system, including filter tank main body, it is characterised in that in the filter tank main body
It is provided with filter material layer, filter material layer bottom and is provided with water and air distributing pipe, the water and air distributing pipe is simultaneously anti-as captation and air water
The water and air distributing device of flushing, water and air distributing pipe tube top and side wall are provided with backwash stomata, and ttom of pipe is provided with backwash water hole, described
Water and air distributing pipe Top section is trapezoidal, and the water and air distributing pipe bottom section is rectangle, the top of the water and air distributing pipe
A row side air distribution hole is provided with, the both sides of the water and air distributing pipe offer a row side air distribution hole respectively, and the side is matched somebody with somebody
Stomata is arranged at the nearly top slope in water and air distributing pipe side, and water and air distributing bottom of the tube is provided with two deploying water holes, and the water distribution is matched somebody with somebody
Tracheae bottom along pipe range direction offer it is some assemble water hole, since water inlet end, some water hole apertures that assemble are with water inlet
End distance increases and gradually increased.
2. small-sized rapid filter as claimed in claim 1, it is characterised in that supporting layer is set in filter tank bottom respectively from bottom to top, matches somebody with somebody
Water gas-distribution pipe, upper supporting layer, filter material layer, the filter tank side is connected with inlet channel, and opposite side passes through water and air distributing pipe and water distribution
Gas distributing chamber connects, and described inlet channel one end sets water inlet pipe, and the other end sets backwash drainpipe, water and air distributing room one end
Backwash tracheae and backwash water pipe are set, and the other end sets outlet pipe.
3. small-sized rapid filter as claimed in claim 1, it is characterised in that described water and air distributing pipe one end is provided with water hole interface
With stomata interface, the other end is provided with shrouding, and shrouding is provided with shrouding air distribution hole, and water and air distributing pipe passes through stomata interface and water hole
Interface is connected with water and air distributing room.
4. small-sized rapid filter as claimed in claim 2, it is characterised in that water and air distributing pipe 3 amounts to four, vertical along filter tank main body
To being arranged in parallel on lower supporting layer, the wide 12 ~ 15mm of pipe, 230 ~ 270mm of tube hub spacing.
5. filtering and the backwash technique of a kind of small-sized rapid filter for being equipped with air-water backwashing system as claimed in claim 1,
It is characterized in that：During filtering, backwash drainpipe closing, backwashes water pipe and backwash tracheae is closed, and filters preceding water from water inlet pipe
Into inlet channel, filter tank is overflowed into by washed-out sand rhone, after filter material layer, supporting layer, water and air distributing room is entered by water and air distributing pipe,
Pass through the outlet pipe water outlet of water and air distributing room；During backwash, outlet pipe is closed, and water inlet pipe closes backwashing water self counter flushing water pipe
Into water and air distributing room, air compressor machine compressed air self counter flushing tracheae enters water and air distributing room, and backwashing water and backwash gas exist
Water and air distributing pipe is formed behind stable gas-water interface face, is evenly distributed to by the water and air distributing hole of water and air distributing pipe in filter material layer, instead
Flushing waste water falls into inlet channel by washed-out sand rhone, is discharged by drainpipe, and backwash waste gas directly overflows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310543532.5A CN104623935B (en) | 2013-11-06 | 2013-11-06 | It is equipped with the small-sized rapid filter and its filtering and backwash technique of air-water backwashing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310543532.5A CN104623935B (en) | 2013-11-06 | 2013-11-06 | It is equipped with the small-sized rapid filter and its filtering and backwash technique of air-water backwashing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104623935A CN104623935A (en) | 2015-05-20 |
| CN104623935B true CN104623935B (en) | 2017-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310543532.5A Active CN104623935B (en) | 2013-11-06 | 2013-11-06 | It is equipped with the small-sized rapid filter and its filtering and backwash technique of air-water backwashing system |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104860480A (en) * | 2015-05-22 | 2015-08-26 | 浙江海洋学院 | Large-scale eutrophication degradation method |
| CN107055771B (en) * | 2017-06-02 | 2023-03-31 | 上海同济环境工程科技有限公司 | Water and gas distribution system and backwashing process thereof |
| CN110124378B (en) * | 2019-06-17 | 2024-06-04 | 河南蔚蓝水处理技术有限公司 | 360-Degree filter brick |
| CN110124385B (en) * | 2019-06-17 | 2023-10-13 | 河南蔚蓝水处理技术有限公司 | Filter tank |
Citations (5)
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|---|---|---|---|---|
| CN201257323Y (en) * | 2008-07-21 | 2009-06-17 | 张海波 | Fiber filter material high-speed filter |
| CN201361473Y (en) * | 2009-01-16 | 2009-12-16 | 宁波德安生态环保工程有限公司 | Circular fiber filtration pond |
| CN201558585U (en) * | 2009-11-23 | 2010-08-25 | 厦门飞华环保器材有限公司 | Filter tank structure |
| CN102407037A (en) * | 2011-09-21 | 2012-04-11 | 成都碧水齐力市政工程有限公司 | Air-water backwash filter and air-water backwash method |
| US8871093B2 (en) * | 2012-01-12 | 2014-10-28 | Xylem Water Solutions Zelienople Llc | Filter media retainer assembly |
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2013
- 2013-11-06 CN CN201310543532.5A patent/CN104623935B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201257323Y (en) * | 2008-07-21 | 2009-06-17 | 张海波 | Fiber filter material high-speed filter |
| CN201361473Y (en) * | 2009-01-16 | 2009-12-16 | 宁波德安生态环保工程有限公司 | Circular fiber filtration pond |
| CN201558585U (en) * | 2009-11-23 | 2010-08-25 | 厦门飞华环保器材有限公司 | Filter tank structure |
| CN102407037A (en) * | 2011-09-21 | 2012-04-11 | 成都碧水齐力市政工程有限公司 | Air-water backwash filter and air-water backwash method |
| US8871093B2 (en) * | 2012-01-12 | 2014-10-28 | Xylem Water Solutions Zelienople Llc | Filter media retainer assembly |
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