CN103938705A - Improved device for removing sand in urban road storm flow - Google Patents
Improved device for removing sand in urban road storm flow Download PDFInfo
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- CN103938705A CN103938705A CN201310021939.1A CN201310021939A CN103938705A CN 103938705 A CN103938705 A CN 103938705A CN 201310021939 A CN201310021939 A CN 201310021939A CN 103938705 A CN103938705 A CN 103938705A
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- sand
- modified form
- desanding device
- filtration beds
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Abstract
The invention discloses an improved device for controlling sand in urban road storm flow, mainly for removing the sand carried by the urban road storm flow and particularly capable of removing small-particle sand effectively. The improved device comprises a rainwater grate (1), a flow baffle (2), a sand storage well (3) and a filtering layer (4), wherein the existing facility can serve as the rainwater grate (1), additional manufacture of the rainwater grate (1) is not needed, the flow baffle (2) has a 45-degree inclination, the sand storage well (3) is positioned at the bottom of the device and used for storing collected sand, and the filtering layer (4) is 0.5m deep, comprises gravels/ cobblestones with 20mm-40mm grain sizes and is used for strengthening removal of micro particles. The improved device has the advantages that the improved device is convenient to use and capable of being arranged at the lower portion of the existing gutter inlet directly, no additional land occupation is needed, the current situation of rainwater pipelines does not need to be changed, sand collection efficiency is high, compared with the existing device, collection efficiency of fine sand is increased remarkably, sand can be cleared away by a fecal suction truck along the pipelines for one time directly and conveniently, and back wash can be performed by the filtering layer automatically and synchronously.
Description
Technical field
Patent of the present invention belongs to urban environment planning, environmental protection technical field, and the source/transmitting procedure that is specifically related to urban road storm runoff silt particle is controlled.
Background technology
Urban storm runoff washes away the one of the main reasons that the city surface source pollution causing has become urban water-body water quality deterioration.Urban highway traffic load is large, floor space is many, the generation intensity of its pollution of area source load is much larger than waterproof underlying surfaces such as roofing, squares, become the main contributions body that urban storm runoff pollutes (Wang Shumin. Mountainous City pollution of area source spatial-temporal distribution characteristic research [D]. Chongqing: University Of Chongqing, 2012); , studies have shown that, solid forms is the main occurrence patterns of the pollutants such as organic matter in urban storm runoff, phosphorus, heavy metal meanwhile, suspension should be as the primary control index (Wang Shumin of stormwater pollution, He Qiang, Ai Hainan, Pan Weiliang, intelligence is happy, Wang Jing. Mountainous City stormwater pollution characteristic and control countermeasure [J]. Environmental Engineering journal, 2012,6 (5): 1445-1450.), therefore, the control of strengthening urban storm runoff silt particle is very necessary.
Applicant finds in research work, the structure of removing sand drain by improvement can improve the clearance (patent " a kind of device that carries out source control for urban road storm runoff silt particle " (CN202416537U)) of silt particle in storm runoff, also find simultaneously, although applicant granted patent has improved the removal efficiency of urban storm runoff silt particle to a great extent, for the removal degree of molecule, also need further raising.
For this situation, patent of the present invention has been carried out improved treatment on the basis of original device, has proposed a kind of more desanding device of high mud and sand removal efficiency that has, and for the source of urban road stormwater pollution, controls foundation is provided.
Summary of the invention
Patent of the present invention, according to the water quality characteristic of urban road rainfall runoff, for the active demand of road rain water runoff efficient desanding, proposes a kind of modified form desanding device of applicable urban road storm runoff.This device desanding efficiency is high, and application mode is flexible, especially the removal efficiency of granule silt particle has been had to further lifting, can extensively be laid in the inlet for stom water bottom of urban road, realizes subduing on the spot of road storm runoff silt particle.
the technical scheme of patent of the present invention is as follows:
A modified form desanding device of controlling for urban road storm runoff silt particle, is characterized in that: described modified form desanding device is comprised of rain grid made (1), flow-stopping plate (2), storage sand drain (3), filtration beds (4) four parts.
For reducing construction cost, modified form desanding device is characterised in that rain perforaled strainer can utilize existing utility, does not need other making, simple and convenient.
For simplifying desanding well construction, modified form desanding device is characterised in that the setting of flow-stopping plate not only simplified apparatus structure, and has played guide functions, has avoided the disturbance of storm runoff to precipitated mud and sand, has prevented suspending again of precipitated mud and sand.
For the removal of strengthening fine particle, modified form desanding device is characterised in that 0.5 meter of the filtration beds degree of depth, by gravel/cobble of particle diameter 20-40mm, formed, and 0.5 meter of filtration beds top superelevation, and rain grid made is higher than filtration beds superelevation plate more than (5) 0.5 meters.
For convenience of the removing of precipitated mud and sand with avoid the obstruction of filtration beds, modified form desanding device is characterised in that precipitated mud and sand can periodically get rid of, and method for removing can extract with submersible sewage pump, also can draw with fecal suction truck, in the process of getting rid of at bed mud, water level declines, and filtration beds carries out backwash automatically.
For convenience of the promoting the use of of sand sediment trap, modified form desanding device is characterised in that this device can directly be located at existing inlet for stom water bottom, does not need extra occupation of land, does not need to change rain pipe netting twine present situation, easy to use.
The major advantage of patent of the present invention is as follows: (1), further improved silt particle supplementary set efficiency, especially improved the trapping effect of fine particle silt particle; (2), avoided because storm runoff is to the disturbance of bed mud with wash away the shortcoming that the silt particle arresting efficiency that causes reduces; (3), can directly be arranged in below existing inlet for stom water, applying flexible, on present network situation without impact, reduced investment, and the silt particle of collecting is convenient removes; (4), when institute's supplementary set silt particle is removed, filtration beds can synchronously carry out backwash automatically, has avoided the obstruction of filtration beds.
Accompanying drawing explanation
Fig. 1 is the generalized section of this device.In figure:
1-rain perforaled strainer, 2-flow-stopping plate
3-storage sand drain, 4-filtration beds
5-filtration beds superelevation plate
The specific embodiment
Referring to Fig. 1, this device is comprised of rain grid made (1), flow-stopping plate (2), storage sand drain (3), filtration beds (4) four parts.When the rainy day, rainfall started, road storm runoff directly enters in described device by rain perforaled strainer (1), then transfers upwards, through filtering layer (4), to flow to municipal Storm Sewer Network.Because silt particle density is greater than the density of water, under the effect of inertia force, silt particle enters deposition in storage sand drain (3), and the arranging of deflector effectively prevented that current are to the perturbation action of precipitated mud and sand; In storm runoff, remaining silt particle is when the filtration beds of flowing through (4), and granule silt particle has obtained further removal.
While implementing patent of the present invention, desanding device can be directly installed on below inlet for stom water, and shape can be as circular or square; Storage sand drain (3) degree of depth 0.5-1.0 rice, 0.5 meter of the filtration beds degree of depth, 0.5 meter of filtration beds top superelevation, and rain grid made is higher than filtration beds superelevation plate more than 0.5 meter, 45 °, flow-stopping plate (2) inclination angle.
Claims (6)
1. a modified form desanding device of controlling for urban road storm runoff silt particle, is characterized in that: described modified form desanding device is comprised of rain grid made (1), flow-stopping plate (2), storage sand drain (3), filtration beds (4) four parts.
2. modified form desanding device according to claim 1, is characterized in that rain perforaled strainer can utilize existing utility, does not need other making, simple and convenient.
3. modified form desanding device according to claim 1, is characterized in that apparatus structure has not only been simplified in the setting of flow-stopping plate, and has played guide functions, has avoided the disturbance of storm runoff to precipitated mud and sand, has prevented suspending again of precipitated mud and sand.
4. modified form desanding device according to claim 1, is characterized in that 0.5 meter of the filtration beds degree of depth, by gravel/cobble of particle diameter 20-40mm, formed, and 0.5 meter of filtration beds top superelevation, and rain grid made is higher than filtration beds superelevation plate more than (5) 0.5 meters.
5. modified form desanding device according to claim 1, is characterized in that precipitated mud and sand can periodically get rid of, and method for removing can extract with submersible sewage pump, also can draw with fecal suction truck, and in the process of getting rid of at bed mud, water level declines, and filtration beds carries out backwash automatically.
6. modified form desanding device according to claim 1, is characterized in that this device can directly be located at existing inlet for stom water bottom, does not need extra occupation of land, does not need to change rain pipe netting twine present situation, easy to use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310021939.1A CN103938705A (en) | 2013-01-22 | 2013-01-22 | Improved device for removing sand in urban road storm flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310021939.1A CN103938705A (en) | 2013-01-22 | 2013-01-22 | Improved device for removing sand in urban road storm flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103938705A true CN103938705A (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310021939.1A Pending CN103938705A (en) | 2013-01-22 | 2013-01-22 | Improved device for removing sand in urban road storm flow |
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| CN (1) | CN103938705A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775506A (en) * | 2015-04-18 | 2015-07-15 | 重庆文理学院 | Storm runoff desanding well of urban road |
| CN104775499A (en) * | 2015-04-18 | 2015-07-15 | 重庆文理学院 | Storm runoff purification device of urban road |
| CN105040795A (en) * | 2015-08-06 | 2015-11-11 | 成都迅德科技有限公司 | Drop well having scouring alleviation function |
| CN105672466A (en) * | 2016-03-25 | 2016-06-15 | 北京良乡蓝鑫水利工程设计有限公司 | Integrated rainwater sand basin device |
| CN105688457A (en) * | 2016-03-25 | 2016-06-22 | 北京良乡蓝鑫水利工程设计有限公司 | Rainwater desilting basin device |
| CN109629654A (en) * | 2018-12-26 | 2019-04-16 | 中冶南方工程技术有限公司 | A kind of pretreatment formula road rain water port system |
-
2013
- 2013-01-22 CN CN201310021939.1A patent/CN103938705A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104775506A (en) * | 2015-04-18 | 2015-07-15 | 重庆文理学院 | Storm runoff desanding well of urban road |
| CN104775499A (en) * | 2015-04-18 | 2015-07-15 | 重庆文理学院 | Storm runoff purification device of urban road |
| CN104775499B (en) * | 2015-04-18 | 2017-05-31 | 重庆文理学院 | Urban road storm runoff purifier |
| CN104775506B (en) * | 2015-04-18 | 2017-05-31 | 重庆文理学院 | Urban road storm runoff removes sand drain |
| CN105040795A (en) * | 2015-08-06 | 2015-11-11 | 成都迅德科技有限公司 | Drop well having scouring alleviation function |
| CN105672466A (en) * | 2016-03-25 | 2016-06-15 | 北京良乡蓝鑫水利工程设计有限公司 | Integrated rainwater sand basin device |
| CN105688457A (en) * | 2016-03-25 | 2016-06-22 | 北京良乡蓝鑫水利工程设计有限公司 | Rainwater desilting basin device |
| CN105688457B (en) * | 2016-03-25 | 2017-11-24 | 北京良乡蓝鑫水利工程设计有限公司 | A kind of rainwater desilting pool device |
| CN109629654A (en) * | 2018-12-26 | 2019-04-16 | 中冶南方工程技术有限公司 | A kind of pretreatment formula road rain water port system |
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| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140723 |