CN202440875U - Device for collecting pre-polluted rain - Google Patents
Device for collecting pre-polluted rain Download PDFInfo
- Publication number
- CN202440875U CN202440875U CN2012200446080U CN201220044608U CN202440875U CN 202440875 U CN202440875 U CN 202440875U CN 2012200446080 U CN2012200446080 U CN 2012200446080U CN 201220044608 U CN201220044608 U CN 201220044608U CN 202440875 U CN202440875 U CN 202440875U
- Authority
- CN
- China
- Prior art keywords
- channel
- drop well
- rain
- collecting
- precontamination
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
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Abstract
The utility model relates to a device for collecting pre-polluted rain, in particular to a device for collected rain which is polluted in an initial stage. The device comprises a collecting pool, a water outlet channel connected with an external water body, and a water inlet channel for conveying the polluted rain. A water inlet is arranged at one side of the collecting pool. The collecting device further comprises a drop well; and the lower part of the drop well is provided with a connection channel and is communicated with the water inlet of the collecting pool, and the upper part of the drop well is provided with a water inlet channel and a water outlet channel which are respectively communicated with the water inlet channel and the water outlet channel. The device for collecting the pre-polluted rain provided by the utility model can ensure that the rain collected in the collecting pool is the pre-polluted rain without a valve and manual operation, and has strong reliability.
Description
Technical field
The utility model relates to a kind of early-stage rainwater gathering-device, is specially a kind of device of collecting contaminated early-stage rainwater.
Background technology
Because the rainwater at rainfall initial stage has dissolved pollution gas such as airborne a large amount of sour gas, vehicle exhaust, plant gas; Behind the landing ground; Again owing to wash away asphalt felt roofing, bituminous concrete road, building site etc.; Make contain pollutants such as a large amount of organic matters, pathogen, heavy metal, grease, suspended solid in the rainwater early stage, so the degree of contamination of early-stage rainwater is higher, has surpassed the degree of contamination of common municipal sewage usually.Basically do not reach discharge standard at industrial and mining enterprises' early-stage rainwater, become the principal contradiction that corporate environment is polluted.If early-stage rainwater is directly entered the nature receiving waters, will pollute water body, therefore must be with handling after its unified collection.
The existing early-stage rainwater gathering-device that generally adopts is that stormwater tank is set, and comprises collecting pit 1, is connected to going out water channel 2 and carrying the inlet channel 3 of precontamination rainwater of outside water body, and collecting pit 1 one sides are provided with inlet opening 5; And in stormwater tank water inlet and the sewer electric gate valve is set in the early stage; The collection and the discharging of control early-stage rainwater, the method investment is big, and operation easier is big; Reliability is low, and maintenance is frequent.
Summary of the invention
The purpose of the utility model is, to the deficiency of prior art, a kind of precontamination rain collector is provided; Guarantee that the precontamination rainwater all is collected in the early-stage rainwater pond; Non-precontamination rainwater can be discharged in the water body voluntarily, and is simple and reliable for structure, and practices thrift cost.
The technical scheme of the utility model does; A kind of precontamination rain collector; Comprise collecting pit, be connected to going out water channel and carrying the inlet channel of precontamination rainwater of outside water body; Collecting pit one side is provided with the inlet opening, and said gathering-device also comprises drop well, this drop well bottom is provided with that interface channel is communicated with the collecting pit inlet opening and drop well top be provided with intake tunnel and exhalant canal respectively with inlet channel with go out water channel and be communicated with.
Said intake tunnel bottom surface equates with the height of the relative horizontal plane in exhalant canal bottom surface.
Said interface channel bottom surface equates with the height of the relative horizontal plane of drop well inner bottom surface.
The utility model principle is in collecting pit one side drop well to be set, and the drop well shaft bottom links to each other with the collecting pit that is provided with by certain rain frequency and rainfall duration, rains the initial stage; Rainwater flows to collecting pit continually; After collecting pit was full of, rainwater had individual jacking effect to the drop well rainwater in the pond, and this moment, the later stage rainwater of drop well no longer flowed to collecting pit; And through the exhalant canal overflow of drop well top to going out water channel, until entering water body.Drop well the length that will consider hydraulic jump when width calculates is set, principle is not allow early-stage rainwater directly to jump downstream.
Suppose that the early-stage rainwater flow is Q, the width of rainwater inlet channel is b, and discharge per unit width is q (q=h
1 *v
1), absolute altitude is H at the bottom of the inlet channel canal, can be known by " hydraulics ":
Length L=the L of drop well
j=10.8h
1(F
R1-1)
0.93
Width B=the 0.1+b of drop well
Wherein: L
jBe the length that jumps of hydraulic jump in the drop well;
h
1Be the depth of water in the inlet channel;
v
1Be water velocity in the inlet channel;
F
R1For section part current Froude number before jumping, by F
R1 2=q
2/ gh
1 3Calculate, wherein g is an acceleration of gravity.
Know that by above the utility model need not gate as a kind of precontamination rain collector, can guarantee that the rainwater of collecting in the collecting pit is the precontamination rainwater, need not manually-operated, good reliability.
Description of drawings
Fig. 1 is the structure vertical view of a kind of embodiment of the utility model;
Fig. 2 is I among Fig. 1-I face sectional view;
Fig. 3 is II among Fig. 1-II face sectional view.
The specific embodiment
Like Fig. 1-shown in Figure 3; A kind of precontamination rain collector; Comprise collecting pit 1, be connected to going out water channel 2 and carrying the inlet channel 3 of precontamination rainwater of outside water body, collecting pit 1 one sides are provided with inlet opening 5, it is characterized in that; Said gathering-device also comprises drop well 4, these drop well 4 bottoms are provided with that interface channel 6 is communicated with collecting pit inlet opening 5 and drop well 4 tops be provided with intake tunnel 7 and exhalant canal 8 respectively with inlet channel 3 with go out water channel 2 and be communicated with.
Said intake tunnel 7 bottom surfaces equate with the height of the relative horizontal plane in exhalant canal 8 bottom surfaces.
Said interface channel 6 bottom surfaces equate with the height of the relative horizontal plane of drop well 4 inner bottom surface.
Claims (3)
1. precontamination rain collector; Comprise collecting pit (1), be connected to going out water channel (2) and carrying the inlet channel (3) of precontamination rainwater of outside water body; Collecting pit (1) one side is provided with inlet opening (5); It is characterized in that; Said gathering-device also comprises drop well (4), and this drop well (4) bottom is provided with that interface channel (6) is communicated with collecting pit inlet opening (5) and drop well (4) top is provided with intake tunnel (7) and exhalant canal (8) respectively with inlet channel (3) with go out water channel (2) and be communicated with.
2. according to the said precontamination rain collector of claim 1, it is characterized in that said intake tunnel (7) bottom surface equates with the height of the relative horizontal plane in exhalant canal (8) bottom surface.
3. according to the said precontamination rain collector of claim 1, it is characterized in that said interface channel (6) bottom surface equates with the height of the relative horizontal plane of drop well (4) inner bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200446080U CN202440875U (en) | 2012-02-13 | 2012-02-13 | Device for collecting pre-polluted rain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200446080U CN202440875U (en) | 2012-02-13 | 2012-02-13 | Device for collecting pre-polluted rain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202440875U true CN202440875U (en) | 2012-09-19 |
Family
ID=46822329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200446080U Expired - Fee Related CN202440875U (en) | 2012-02-13 | 2012-02-13 | Device for collecting pre-polluted rain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202440875U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821222A (en) * | 2014-02-17 | 2014-05-28 | 广州市市政工程设计研究院 | Initial rainwater and rain-sewage mixed overflow water storage pond facility with flood peak reduction function |
| CN106703117A (en) * | 2015-07-30 | 2017-05-24 | 誊录企业有限公司 | Rainstorm water infiltration system |
| CN106703156A (en) * | 2017-01-09 | 2017-05-24 | 中国水利水电科学研究院 | Early rainwater pollution prevention system and method for airport runway and parking apron |
| CN107347653A (en) * | 2017-08-25 | 2017-11-17 | 农业部环境保护科研监测所 | System is stored up in milk cow sports ground excrement dirt |
-
2012
- 2012-02-13 CN CN2012200446080U patent/CN202440875U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821222A (en) * | 2014-02-17 | 2014-05-28 | 广州市市政工程设计研究院 | Initial rainwater and rain-sewage mixed overflow water storage pond facility with flood peak reduction function |
| CN103821222B (en) * | 2014-02-17 | 2015-08-19 | 广州市市政工程设计研究总院 | Take into account early-stage rainwater and the rain dirty mixing water overflow storage pond facility of flood peak reduction |
| CN106703117A (en) * | 2015-07-30 | 2017-05-24 | 誊录企业有限公司 | Rainstorm water infiltration system |
| CN106703156A (en) * | 2017-01-09 | 2017-05-24 | 中国水利水电科学研究院 | Early rainwater pollution prevention system and method for airport runway and parking apron |
| CN107347653A (en) * | 2017-08-25 | 2017-11-17 | 农业部环境保护科研监测所 | System is stored up in milk cow sports ground excrement dirt |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20210213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |