CN207845434U - A kind of storm outfall sewer pretreatment system with peak clipping and purification function - Google Patents
A kind of storm outfall sewer pretreatment system with peak clipping and purification function Download PDFInfo
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- CN207845434U CN207845434U CN201721799114.2U CN201721799114U CN207845434U CN 207845434 U CN207845434 U CN 207845434U CN 201721799114 U CN201721799114 U CN 201721799114U CN 207845434 U CN207845434 U CN 207845434U
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Abstract
A kind of storm outfall sewer pretreatment system with peak clipping and purification function comprising：The permeable filtering for crossing water of twice being surrounded outside storm outfall sewer (1) with steel-pipe pile (3) and retaining facility, geotextile bag (4) is placed between filtering retention facility；The geotextile bag：The third porous filter medium (7), the particulate matter crystallizing field in bottom are provided with perforated pipe aerating regulation facility filled with the outside on the second porous filter medium (6), ordinary water level filled with the inside on the first porous filter medium (5), ordinary water level below ordinary water level, floating plate (8) is provided at the top of geotextile bag, floating plate kind is implanted with the emergent aquactic plant in conjunction with river periphery ecoscape facility.The utility model is arranged in combination with the ecoscape engineering of existing waterway, influence of the instantaneous rainfall that rainwash collects when realization slows down rainy to river water body water quality, while further can also carry out certain purified treatment to the draining of storm outfall sewer.
Description
Technical field
The utility model is related to a kind of storm outfall sewer pretreatment systems with peak clipping and purification function.
Background technology
China's rainwater resource is abundant, and annual precipitation is up to 619,000,000,000 m3.It is completed in area in city, the earth's surface diameter that rainwater is formed
Stream mainly enters the surface water bodies such as river by Storm Sewer Network.Due to the continuous development of Process of Urbanization Construction, the waterproof region in city
Area it is increasing, rainfall causes the pollutant load in rainwash to dramatically increase washing away for surface sediments.Earth's surface
Pollutant in runoff include solid-state castoff clast (municipal refuse, animal wastes, Urban Building Construction place deposit etc.),
Fertilizer and pesticide, vehicle discharge and atmospheric falling dust that greening lawn is applied during conserving etc..
Currently, China, there is no perfect initial rainwater collection facility, present situation is that city is completed most of rainwater in area
Pipe network draining is directly entered river, often leads to rainwash and wash away pollutant to be directly discharged into urban rives earth's surface with initial rainwater
Water body increases the pollutional load of urban rives water quality, while a large amount of granular deposits in down wash can also accelerate in river
Siltation.
The existing solution for initial rainwater is newly-built rainwater Vatch basin or the structure to existing rainwater well head
It is transformed, initial rainwater is detached or is collected into the treatment facility of Rainwater Storage Tank and initial rainwater.It is built in city
At in area, since the urban operating mechanisms such as drainage pipeline networks have been carried out completion, the engineering of collection and the transformation of first stage of construction rainwater again
Facility difficulty is big.Simultaneously in view of the instantaneous water of initial rainwater is big, assemble index is short and the irregular property etc. of water generation time
It is unstable to be easy to cause the unified effect for collecting reprocessing for feature.In addition, also having using elastic fillers such as artificial aquatic weeds to initial stage
The mode that rainwater is handled.But the implementation of purification function is fixed against energy apposition growth biomembrane pair on artificial aquatic weed in this method
Water quality is purified, and causes the biomembrane to be difficult due to initial rainwater itself water quality characteristics and with the time of contact of artificial aquatic weed
Growth, it is difficult to form the carrier of effective purification function.
Utility model content
Technical problem to be solved in the utility model exactly proposes a kind of rainwater discharge with peak clipping and purification function
Mouth pretreatment system is arranged, realization subtracts using the system of the utility model in combination with the ecoscape engineering of existing waterway
Influence of the instantaneous rainfall that rainwash collects when slow rainy to river water body water quality, while can also be further to storm outfall sewer
Draining carry out certain purified treatment.
Above-mentioned technical problem is solved, the utility model uses following technical scheme.
A kind of storm outfall sewer pretreatment system with peak clipping and purification function, it is characterized in that including：
Surround outside storm outfall sewer the permeable filtering retention facility for crossing water of twice with steel-pipe pile, filtering retention facility it
Interior is rain-water accumulating dead zone, and geotextile bag is placed between filtering retention facility；The geotextile bag：It is filled below ordinary water level
Have the first porous filter medium 5, the inside on ordinary water level filled with second of porous filter medium 6, ordinary water level it
On outside the third porous filter medium 7, the particulate matter crystallizing field in bottom are provided with perforated pipe aerating regulation facility,
Floating plate 8 is provided at the top of geotextile bag, floating plate kind is implanted with the emergent aquactic plant in conjunction with river periphery ecoscape facility.
Three kinds of porous filter mediums are specially：(1) the first：Haydites of book structure, wherein 4~8mm of haydite grain size,
1.8~2.2g/cm3 of proportion, porosity：55~75%；(2) second:Haydites of book structure, wherein 8~16mm of haydite grain size, proportion
1.4~2.8g/cm3, porosity 55-75%；(3) the third：Quartz sand, 0.8~2mm of grain size.
Second of porous filter medium 6 and the height of the third porous filter medium 7 on the ordinary water level are
30 centimetres.
The filtering retains facility structure：It erects and each other there are the steel-pipe pile of spacing, is used between steel-pipe pileSteel pipe is fixed；Clamp connection is used between steel pipe and steel-pipe pile.
Epoxy coal asphalt paint, outer painting green top coat anti-corrosion are applied in the steel-pipe pile.
The perforated pipe aerating regulation facility includes the perforation for being connected to the aeration branch pipe of submerged water wind turbine in river aeration engineering
Pipe 9, perforated pipe are managed using the UPVC of DN50~100, and perforated pipe interlocks 45 degree downwards, trepanning, and aperture is 4~8mm.
The rain-water accumulating dead zone considers the initial rainwater amount of filtering retention processing rainfall.
The system is suitable for urban rives, is between rain-water accumulating dead zone, filtering retention facility in filtering retention facility
For filtering retention purifying area and particulate matter crystallizing field, filtering retention purifying area bottom setting perforated pipe aerating regulation facility constitutes porosity
Filter medium is oxygen-enriched and backwash facility, and it is aquatic that floating plate and initial rainwater, which store the water plant that swims that dead zone 10 is grown above,
Botanical system.
It is connected by buckle or band between the floating plate and floating plate, is connected with nylon rope between floating plate and steel-pipe pile.
The perforated pipe aerating regulation facility is aerated operating mode：It is picked out from the supervisor of the underwater air blower in river aeration engineering
One pipeline branch becomes bottom perforated pipe after stretching into geotextile bag bottom；When usually running, perforated pipe passes through regulating valve
Door is aerated in a small amount, is increased the oxygen content in porous filter medium, is contributed to the formation of Internal biological film.
The perforated pipe aerating regulation facility backwashes operating mode：Perforated pipe aerating regulation facility operation is after three months, porous filter
Medium needs to adjust aeration quantity since absorption pollutant causes hole slowly to become smaller, and using the perforated pipe of bottom be aerated anti-
It rinses, aeration backwash is carried out when fine day storm outfall sewer is not discharged.
The utility model innovation is：1) facility arrangement is carried out in rainwater discharge outlet terminal, it is right on a large scale to be not required to
City Storm Sewer Network is transformed, and engineering construction is convenient；2) rich by the selection of a variety of porous filter mediums and pore interior
The purified treatment of initial rainwater is realized in the combination of oxygen facility, reduces the pollutional load of river water body；3) rain-water accumulating dead zone domain can have
Effect reduces influence of the instantaneous rainfall to river water quality；4) River Landscape engineering planting aquatic plants are combined, realize purified treatment work(
It can be with the coordination of environmental landscape；5) the aeration engineering that perforated pipe aerating regulation combination river is implemented is realized and is promoted by accessing aeration branch pipe
It into biofilm development and regularly backwashes, improves clean-up effect, while saving energy consumption.
The utility model by the way of distributing treatment in situ, rainwater discharge outlet terminal combination River Landscape facility into
The arrangement of row purification processing facility, need not be transformed the structure of Storm Sewer Network and rainwater well head again, and convenient construction can effectively drop
Influence of the low rainy season instantaneous water to river water quality is lowered into the pollutional load that storm outfall sewer imports river initial rainwater,
River training quality of water environment.
The useful achievement of the utility model：1) can effectively reduce influence of the rainy season instantaneous water to river water quality, reduce into
Enter the pollutional load that storm outfall sewer imports the initial rainwater in river, river training quality of water environment, ecological environment benefit is notable；
2) separated practices mode is used, the transformation of large-scale pipe network and sump is can avoid, engineering construction facility implements economic effect
It is beneficial notable.
Description of the drawings
Fig. 1 is storm outfall sewer pretreatment system plan view；
Fig. 2 is the line A-A sectional view along Fig. 1；
Fig. 3 is the line B-B sectional view along Fig. 1.
Reference numeral refers in figure：1- storm outfall sewers；The riverbanks 2- barricade；3- steel-pipe piles；4- geotechnique's woven fabric bag；5- first
Porous filter medium；The second porous filter mediums of 6-；7- third porous filter mediums；8- floating plates；9- is aerated perforated pipe；
10- initial rainwaters store dead zone.
Specific implementation mode
Referring to Fig. 1 to Fig. 3, the storm outfall sewer pretreatment system with peak clipping and purification function of the utility model is implemented
Example, including：
Water fence can be crossed by surrounding twice outside the storm outfall sewer 1 of riverbank barricade 2 with steel-pipe pile 3, and soil is placed between fence
Work textile bags 4 constitute rain-water accumulating dead zone 10.Geotextile bag 4 below ordinary water level filled with the first porous filter medium 5, often
Inside on water level is filled with the third porosity mistake filled with the outside on the second porous filter medium 6, ordinary water level
Filter medium 7, the particulate matter crystallizing field in bottom are provided with perforated pipe aerating regulation perforated pipe 9, are provided at the top of geotextile bag floating
Disk 8,8 kinds of floating plate are implanted with the emergent aquactic plant in conjunction with river periphery ecoscape facility.
Rain-water accumulating dead zone considers the initial rainwater amount of filtering retention processing rainfall, the second porous filter on ordinary water level
The height of medium 6 and third porous filter medium-filler 7 is 30 centimetres.
Three kinds of porous filter mediums are specially：(1) the first：Haydites of book structure, wherein 4~8mm of haydite grain size, proportion
1.8~2.2g/cm3, porosity：55~75%；(2) second:Haydites of book structure, wherein 8~16mm of haydite grain size, proportion 1.4
~2.8g/cm3, porosity 55-75%；(3) the third：Quartz sand, 0.8~2mm of grain size.
Fence structure is：One row are erect and each other there are the steel-pipe piles of spacing 3, are used between steel-pipe pile 3Steel pipe
It is fixed, clamp connection is used between steel pipe and steel-pipe pile.Epoxy coal asphalt paint, outer painting green top coat anti-corrosion are applied in steel-pipe pile.
Perforated pipe aerating regulation facility includes the aeration perforated pipe for being connected to the aeration branch pipe of submerged water wind turbine in river aeration engineering
9, aeration perforated pipe is managed using the UPVC of DN50~100, and perforated pipe interlocks 45 degree downwards, trepanning, and aperture is 4~8mm.
It is connected by buckle or band between floating plate and floating plate, is connected with nylon rope between floating plate and steel-pipe pile.
This system is suitable for urban rives, filtering that be between rain-water accumulating dead zone, fence in fence be retain purifying area and
Grain object crystallizing field, filter retention purifying area bottom setting perforated pipe aerating regulation facility composition porous filter medium is oxygen-enriched and backwash is set
It applies, floating plate and initial rainwater store the water plant that swims that dead zone 10 is grown above for aquatic plant system.
The storm outfall sewer pretreating process with peak clipping and purification function that above system is utilized includes the following steps：
1) storm outfall sewer of river bank is investigated, determines the pipe diameter size of storm outfall sewer；
2) storm outfall sewer pretreatment considers the initial rainwater of processing rainfall, according to different outlet calibers and river cross-section
Characteristic determines rain-water accumulating dead zone size, wherein 3~5m of length, 1.5~2m of width；
3) geotextile bag is fixed into storm outfall sewer periphery by one of filtering by steel-pipe pile and retains facility, geotechnique knits
Different porous filter mediums is filled by different positions inside object bag；
4) floating plate is set at the top of geotextile bag, and floating plate combination river periphery ecoscape facility plants emergent aquactic plant；
5) geotextile bag bottom combines river aeration engineering installation perforated pipe aerating regulation facility；
6) initial rainwater is when 10 the inside of rain-water accumulating dead zone that geotextile bag surrounds stops, the inorganic particulate matter of bulky grain
It can first deposit in this bottom, pumping be carried out using the small submersible sewage pump of mobility in regular 3 months.
Perforated pipe aerating regulation facility backwashes operating mode：Perforated pipe aerating regulation facility operation is after three months, porous filter medium by
Cause hole slowly to become smaller in absorption pollutant, needs to adjust aeration quantity, aeration backwash is carried out using the perforated pipe of bottom, expose
Gas backwashes：When fine day storm outfall sewer is not discharged, backwashed.
Feng Tan Ha Noi of this engineering construction case near the drainage and irrigation station of Hangzhou Gongshu District pool river carries out.The rivers Feng Tan river width is about
20m, river ordinary water level 1.6m.River bank has rainwater discharge outlet caliber 500mm, tube top absolute altitude 1.0m.In storm outfall sewer
Periphery is fixed with steel-pipe pile, forms enclosure region with geotextiles, enclosure region is specifically shown in Fig. 1.Certain bits are pressed in geotextiles respectively
The different porous filter medium of placement location.Filter medium 5 will ensure filling to river ordinary water level elevation, to ensure that bottom filters
Crown_interception of the medium to initial rainwater.Filter medium 6 and filter medium 7 are by location arrangements in Fig. 2, the neighbouring row of filter medium 6
Side is exported, filter medium 7 is located at outside, and arrangement height is from from ordinary water level to the high 30cm of ordinary water level.
Since bottom filtration media granules are small, upper level filter media particle is big, and the water outlet of outlet is mainly arranged from above
River is slowly oozed out into two layers of filter medium.In the process, one side porous filter medium can be adsorbed, be filtered step by step
Pollutant in initial rainwater is retained, while during seepage flow, porous filter medium also can slowly grow biomembrane into one
Step reduces the pollution in removal initial rainwater, to realize the purified treatment of initial rainwater.Above filter medium 6 and filter medium 7
Place the green plant of floating plate and plantation emergent aquactic plant.Initial rainwater stores dead zone domain 10 and ensures that the rainwater of storm outfall sewer can be stopped,
River Landscape engineering measure is combined to plant floating plant on the water surface.Water plant root system be planted in filter medium and floating plate in,
Can absorption degradation further be carried out to pollutant in initial rainwater.
Porous filter medium bottom combines river aeration engineering installation perforated pipe aerating regulation facility, from river aeration engineering
Underwater air blower supervisor in access a pipeline branch.The rivers Feng Tan are aerated the side that engineering uses submerged water air blower aeration
The HDPE aeration supervisors of de90*8.2 are arranged in formula, river bank, and aeration supervisor is by the aeration branch pipe and micropore for equidistantly meeting de16*2
Aeration plate.By introducing a branch pipe on aeration supervisor, the perforated pipe of porous filter medium bottom is then accessed again.Usually
When operation, bottom perforated pipe is aerated in a small amount by control valve, is increased the oxygen content in porous filter medium, is contributed to
The formation of Internal biological film.After running a period of time, porous filter medium causes hole slowly to become smaller due to adsorbing pollutant,
Routine adjustment aeration quantity is needed, carries out aeration backwash using the perforated pipe of bottom, aeration backwash is in fine day storm outfall sewer
When not being discharged, backwashed.When storing the 10 the inside stop of dead zone domain, the inorganic particulate matter of bulky grain can first sink initial rainwater
Product periodically carries out pumping in this bottom using the small submersible sewage pump of mobility.
Claims (7)
1. a kind of storm outfall sewer pretreatment system with peak clipping and purification function, it is characterized in that including：Existed with steel-pipe pile (3)
The permeable filtering retention facility for crossing water of twice is surrounded outside storm outfall sewer (1), is rain-water accumulating dead zone within filtering retention facility,
Geotextile bag (4) is placed between filtering retention facility；The geotextile bag：It is porous filled with the first below ordinary water level
Property filter medium (5), the inside on ordinary water level is filled with the outside on second of porous filter medium (6), ordinary water level
The third porous filter medium (7), the particulate matter crystallizing field in bottom are provided with perforated pipe aerating regulation facility, in geotechnique
Floating plate (8) is provided on textile bags, floating plate kind is implanted with the emergent aquactic plant in conjunction with river periphery ecoscape facility.
2. the storm outfall sewer pretreatment system according to claim 1 with peak clipping and purification function, it is characterized in that：Institute
The three kinds of porous filter mediums stated are specially：The first：Haydites of book structure, wherein 4~8mm of haydite grain size, proportion 1.8~
2.2g/cm3, porosity：55~75%；Second:Haydites of book structure, wherein 8~16mm of haydite grain size, 1.4~2.8g/ of proportion
Cm3, porosity 55-75%；The third：Quartz sand, 0.8~2mm of grain size.
3. the storm outfall sewer pretreatment system according to claim 1 with peak clipping and purification function, it is characterized in that：Institute
The height for stating second of the porous filter medium (6) and the third porous filter medium (7) on ordinary water level is 30 centimetres.
4. the storm outfall sewer pretreatment system according to claim 1 with peak clipping and purification function, it is characterized in that：Institute
The filtering stated retains facility structure：It erects and each other there are the steel-pipe pile of spacing (3), is used between steel-pipe pileSteel pipe
It is fixed；Clamp connection is used between steel pipe and steel-pipe pile.
5. the storm outfall sewer pretreatment system according to claim 1 with peak clipping and purification function, it is characterized in that：Institute
Epoxy coal asphalt paint, outer painting green top coat anti-corrosion are applied in the steel-pipe pile (3) stated.
6. the storm outfall sewer pretreatment system according to claim 1 with peak clipping and purification function, it is characterized in that：Institute
The perforated pipe aerating regulation facility stated includes the perforated pipe (9) for being connected to the aeration branch pipe of submerged water wind turbine in river aeration engineering, perforation
Pipe is managed using the UPVC of DN50~100, and perforated pipe interlocks 45 degree downwards, trepanning, and aperture is 4~8mm.
7. the storm outfall sewer pretreatment system according to claim 1 with peak clipping and purification function, it is characterized in that：Institute
It is connected by buckle or band between the floating plate and floating plate stated, is connected with nylon rope between floating plate and steel-pipe pile.
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| CN201721799114.2U CN207845434U (en) | 2017-12-19 | 2017-12-19 | A kind of storm outfall sewer pretreatment system with peak clipping and purification function |
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| CN201721799114.2U CN207845434U (en) | 2017-12-19 | 2017-12-19 | A kind of storm outfall sewer pretreatment system with peak clipping and purification function |
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| CN207845434U true CN207845434U (en) | 2018-09-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218107A (en) * | 2017-12-19 | 2018-06-29 | 中水珠江规划勘测设计有限公司 | Storm outfall sewer pretreatment system and technique with peak clipping and purification function |
-
2017
- 2017-12-19 CN CN201721799114.2U patent/CN207845434U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108218107A (en) * | 2017-12-19 | 2018-06-29 | 中水珠江规划勘测设计有限公司 | Storm outfall sewer pretreatment system and technique with peak clipping and purification function |
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