CN204337856U - A kind of backwash air diffuser for filter tank - Google Patents
A kind of backwash air diffuser for filter tank Download PDFInfo
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- CN204337856U CN204337856U CN201420751650.5U CN201420751650U CN204337856U CN 204337856 U CN204337856 U CN 204337856U CN 201420751650 U CN201420751650 U CN 201420751650U CN 204337856 U CN204337856 U CN 204337856U
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- branch pipe
- main pipeline
- filter tank
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Abstract
The utility model discloses a kind of backwash air diffuser for filter tank, it comprises main pipeline (1) and branch pipe(tube) (2), described branch pipe(tube) interval arranges and is connected with main pipeline, described main pipeline and branch pipe(tube) form rich font or closed-loop type, described main pipeline is provided with air inlet (3), described air inlet mates with backwash air inlet, the tube wall of described branch pipe(tube) is interval with diffusion hole (4), and described diffusion hole aperture and branch pipe(tube) caliber are than 1/8 ~ 1/5.A kind of backwash air diffuser for filter tank is installed under the filter plate in filter tank, air is sent to after under the filter plate of filter tank by air blast, enter backwash air diffuser, by air diffuser by air fast, be evenly distributed in filter plate under form uniform air cushion layer; Realize the object of uniform air distribution, avoid the supporting layer because of the uneven generation of gas distribution to mix with filtrate, cause filtrate and enter and the problem blocking filter.
Description
Technical field
The utility model relates to water treatment filter pond water treatment facilities, particularly a kind of backwash air diffuser for filter tank.
Background technology
To there is filter plate and needing to carry out the filter tank of combined water and air backwash, the gas distribution process of existing backwash is: air is delivered under filter plate from outside by air blast, form air cushion layer, the air in air cushion layer enters the filtrate supporting layer (such as cobble) of inside, filter tank through filter and filtrate (such as ceramic grain filter) carries out backwash.Air is sent to from outside filter plate by air blast and the prior art forming air cushion layer is, air is sent to certain (such as air admission hole) under the filter plate of filter tank by air blast, from certain, relies on the natural diffuseness of air, be diffused into whole filter plate from certain gradually, form air cushion layer.There is following defect in said structure: 1) air is sent to certain (such as air admission hole) under the filter plate of filter tank, relies on the natural diffuseness of air by air blast, and the formation speed of air cushion layer is slow; 2) formation of air cushion layer is uneven, and the thickness particularly in air cushion layer forming process is obviously uneven, and the tolerance near air inlet place is very large, air cushion thickness, away from air inlet place narrow-minded, air cushion layer is thin; Correspondingly, the tolerance being entered filtrate supporting layer by the filter on filter plate is also uneven, and it is large-minded that the region of air cushion thickness enters filtrate supporting layer; 3) cause gas distribution uneven thus, in the region that tolerance is larger, sometimes even supporting layer is rushed, cause supporting layer to mix with filtrate; And cause filtrate and enter and block filter.
Utility model content
The purpose of this utility model is the defect in order to overcome above-mentioned existence in prior art, provide one can by air fast, be evenly distributed in filter plate under, form uniform air cushion layer, realize the object of uniform air distribution, and also prevent the backwash air diffuser for filter tank blocking filter.
The technical scheme that the utility model wants technical solution problem to adopt is: a kind of backwash air diffuser for filter tank comprises main pipeline and branch pipe(tube), described branch pipe(tube) interval arranges and is connected with main pipeline, described main pipeline and branch pipe(tube) form rich font or closed-loop shaped, described main pipeline is provided with air inlet, described air inlet mates with backwash air inlet, the tube wall of described branch pipe(tube) is interval with diffusion hole, described diffusion hole aperture and branch pipe(tube) caliber are than 1/8 ~ 1/5, and branch pipe(tube) caliber is compared with main pipeline caliber 1/12 ~ 1/6.
The form that described main pipeline is connected with branch pipe(tube) has multiple; One is connected to form rich font at interval, main pipeline both sides and some branch pipe(tube) one end, and described rich font also comprises T-shaped, cross etc.; Another kind is connected with some branch pipe(tube) two ends in circular or square main pipeline peripheral intervals, and described closed-loop shaped comprises sun annular, matrix pattern, order font etc.
The beneficial effects of the utility model are: arranged by rational branch pipe(tube) distribution and selected suitable main pipeline and branch pipe(tube) caliber ratio, and diffusion hole aperture and branch pipe(tube) caliber ratio, a kind of backwash air diffuser for filter tank is installed under the filter plate in filter tank, air is sent to after under the filter plate of filter tank by air blast, enter backwash air diffuser, by air diffuser by air fast, be evenly distributed in filter plate under form uniform air cushion layer; Realize the object of uniform air distribution, avoid the supporting layer because of the uneven generation of gas distribution to mix with filtrate, cause filtrate and enter and the problem blocking filter.
Accompanying drawing explanation
Fig. 1 is filter tank structure schematic diagram of the prior art,
Fig. 2 for being equipped with filter tank structure schematic diagram of the present utility model,
Fig. 3 is the first cross-sectional structure schematic diagram of the present utility model,
Fig. 4 is the second cross-sectional structure schematic diagram of the present utility model.
In the drawings, 1, main pipeline 2, branch pipe(tube) 3, air inlet 4, diffusion hole 5, backwash air inlet 6, water inlet 7, filter tank body 8, support 9, filter plate 10, delivery port.
Detailed description of the invention
In order to make those skilled in the art understand the technical solution of the utility model better, in conjunction with detailed description of the invention, the utility model is described in further detail with reference to the accompanying drawings below.
In the drawings, a kind of backwash air diffuser for filter tank, comprises main pipeline 1 and branch pipe(tube) 2; Main pipeline and branch pipe(tube) form rich font or closed-loop type, and the inside, all branch pipe(tube) one end that main pipeline and interval are established is communicated with, and links together by modes such as welding manners, the tube wall of branch pipe(tube) is interval with diffusion hole 4.If main pipeline and branch pipe(tube) form rich font, except the air inlet 3 of main pipeline, remaining pipes end adopts the modes such as welding manner to shut.
Described a kind of backwash air diffuser for filter tank, is arranged on below the filter plate 9 in filter tank body 7 by support 8; Main pipeline is established air inlet 3 and can be flexibly connected with filter back washing air inlet 5.
Described backwash air diffuser, the caliber of main pipeline is greater than the caliber of branch pipe(tube).Main pipeline caliber 100mm-900mm, branch pipe(tube) caliber 50mm-75mm, branch pipe(tube) caliber is compared with main pipeline caliber 1/12 ~ 1/6.
Backwash air diffuser described in Fig. 3, main pipeline and branch pipe(tube) form rich font, and except air inlet place, all the other main pipelines and branch pipe(tube) end are closed.
Backwash air diffuser described in Fig. 4, main pipeline and branch pipe(tube) composition closed-loop shaped, except air inlet place, all the other main pipelines are closed.
Body lower end, described filter tank is provided with above water inlet 6, filter tank body and is provided with delivery port 10, the filter plate of filter tank body is provided with filtrate, filter plate is equipped with filter.
Described backwash air diffuser, on the tube wall of branch pipe(tube), the aperture of diffusion hole is 6mm-15mm, and the distance of adjacent holes is 100mm-500mm.Described diffusion hole aperture and branch pipe(tube) caliber are than 1/8 ~ 1/5.
After adopting technique scheme, air is sent to a kind of backwash air diffuser for filter tank under filter plate by air blast, enters branch pipe(tube), carried out primary distribution to backwash air through main pipeline; Aperture again on branch pipe(tube) wall out, has carried out secondary distribution to backwash air.By the secondary distribution to backwash air, under backwash air is diffused in filter plate quickly and evenly, the formation speed of air cushion layer is fast, thickness in air cushion layer forming process is even, can also avoid that the supporting layer because of air cushion layer initiation in uneven thickness mixes with filtrate, filtrate enters and block filter problem.
Above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted; although be described in detail the utility model with reference to specific embodiment; those of ordinary skill in the art is to be understood that; can modify to the technical solution of the utility model or equivalent replacement; and not departing from the spirit and scope of technical solutions of the utility model, the backwash air diffuser structure of the various ways that such as main pipeline and branch pipe(tube) are formed all should belong to the right of the application's request protection.
Claims (1)
1. the backwash air diffuser for filter tank, it is characterized in that: it comprises main pipeline (1) and branch pipe(tube) (2), described branch pipe(tube) interval arranges and is connected with main pipeline respectively, described main pipeline and branch pipe(tube) form rich font or closed-loop type, described main pipeline is provided with air inlet (3), described air inlet mates with backwash air inlet (5), the tube wall of described branch pipe(tube) is interval with diffusion hole (4), described diffusion hole aperture and branch pipe(tube) caliber are than 1/8 ~ 1/5, and branch pipe(tube) caliber is compared with main pipeline caliber 1/12 ~ 1/6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420751650.5U CN204337856U (en) | 2014-12-05 | 2014-12-05 | A kind of backwash air diffuser for filter tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420751650.5U CN204337856U (en) | 2014-12-05 | 2014-12-05 | A kind of backwash air diffuser for filter tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204337856U true CN204337856U (en) | 2015-05-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420751650.5U Active CN204337856U (en) | 2014-12-05 | 2014-12-05 | A kind of backwash air diffuser for filter tank |
Country Status (1)
| Country | Link |
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| CN (1) | CN204337856U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108176218A (en) * | 2018-01-09 | 2018-06-19 | 湖南恒凯环保科技投资有限公司 | Rotate material filling type biological deodorizing device |
| CN109078373A (en) * | 2018-07-02 | 2018-12-25 | 国核电力规划设计研究院有限公司 | Wind backwash unit and its method, filter cleaning system for filter |
| CN112739442A (en) * | 2018-09-26 | 2021-04-30 | 耐特菲姆有限公司 | Liquid filtration system |
-
2014
- 2014-12-05 CN CN201420751650.5U patent/CN204337856U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108176218A (en) * | 2018-01-09 | 2018-06-19 | 湖南恒凯环保科技投资有限公司 | Rotate material filling type biological deodorizing device |
| CN109078373A (en) * | 2018-07-02 | 2018-12-25 | 国核电力规划设计研究院有限公司 | Wind backwash unit and its method, filter cleaning system for filter |
| CN109078373B (en) * | 2018-07-02 | 2020-08-18 | 国核电力规划设计研究院有限公司 | Air backwashing unit for filter, method thereof and filter cleaning system |
| CN112739442A (en) * | 2018-09-26 | 2021-04-30 | 耐特菲姆有限公司 | Liquid filtration system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 100097, B, times business center, No. 2, East Road, Liang Liang factory, Beijing, Haidian District Patentee after: Beijing Jia Rui environmental protection Limited by Share Ltd Address before: 100097 Beijing city Haidian District landianchang Road No. 2 Jin Yuan times business center B block 6C Patentee before: Beijing Jiarui Environmental Protection Co, Ltd. |