CN109836017A - A kind of residential area rainwater-collecting and the system of utilizing - Google Patents

A kind of residential area rainwater-collecting and the system of utilizing Download PDF

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Publication number
CN109836017A
CN109836017A CN201910218615.4A CN201910218615A CN109836017A CN 109836017 A CN109836017 A CN 109836017A CN 201910218615 A CN201910218615 A CN 201910218615A CN 109836017 A CN109836017 A CN 109836017A
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rainwater
rain
collecting
water
utilizing
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Chinese (zh)
Inventor
计勇
王凯
温英英
彭友文
张洁
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Nanchang Institute of Technology
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Nanchang Institute of Technology
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Abstract

The present invention provides a kind of residential area rainwater-collectings and the system of utilizing, the system includes rainwater-collecting facility, rainwater transmission facilities, first rain separate tank, sedimentation basin and clear water reserviors, rainwater-collecting facility is connect with the import of first rain separate tank by rainwater transmission facilities, the outlet of first rain separate tank and the import of sedimentation basin connect, and the outlet of sedimentation basin and the import of clear water reserviors connect.The rainwater for collecting roof, road surface and afforested areas by rainwater-collecting facility is stored in clear water reserviors after rainwater transmission facilities enters first rain separate tank, sedimentation basin purification, and distributes according to need to each water use sector.The system is suitable for seeping under building in the urban cells of southern rainy regions, road, the stagnant storage of rainwater in afforested areas, collect, purification and utilization.

Description

A kind of residential area rainwater-collecting and the system of utilizing
Technical field
The present invention relates to a kind of residential area rainwater-collectings and the system of utilizing, and belong to sponge city ecology construction engineering technology Field.
Background technique
During current Process of Urbanization Construction, a large amount of hardening reforming processing has been carried out to the original underlying surface in city, has been dropped Low rainwater infiltration ability under natural conditions, so that rainwash total amount increases, the charge for remittance time reduces, these will directly induce city City's waterlogging takes place frequently.In southern area, since rainfall is more abundant, urban waterlogging problem is even more sternness.And residential area conduct The important component in city, if it is possible to the rainwater in cell is preferentially seeped down to and is carried out effective Collection utilization, it can not only Alleviate Municipal pipeline flood passage pressure reduction waterlogging probability, and is avoided that the waste of water resource.
On the other hand, the dirt for causing roofing and road surface to accumulate by the effects of atmospheric sedimentation, motor vehicle abrasion and exhaust emissions It contaminates object and enters natural water with rainfall rainwash, have become the primary pollution source of urban water-body.Studies have shown that cell room Major pollutants are suspended matter and organic pollutant in face, road rain water runoff, wherein just COD can reach in Pluvial water 300mg/L, SS concentration can reach 500mg/L, its pollution numerical value of some areas is even higher, far beyond " surface water environment matter Amount standard " in V class water water standard, if directly nearby discharge natural water will cause water environment degradation.
Most domestic residential area usually enters sewage by rain dirt pipeline all without special rain water collecting system Treatment plant is directly entered natural water, the less collection and utilization for considering rainwater.Therefore, the high-efficiency comprehensive utilization of rainwater is realized It is very significant.
Summary of the invention
Based on this, the present invention proposes a kind of residential area rainwater-collecting with using system, and the system is for district structure, green The regions such as ground and road, the operating pressure of city planting ductwork, reduction city surface source pollution object enter river and lake when reducing rainfall to reach Water body, the utilization rate for improving rainwater resource reduce cell infrastructures construction, management service and ecoscape water cost, promote The purpose well developed into Urban Water Ecological Environment.
To achieve the above object, the particular technique means that the present invention uses are as follows.
A kind of residential area rainwater-collecting and the system of utilizing, including rainwater-collecting facility, rainwater transmission facilities, first rain separate Pond, sedimentation basin and clear water reserviors, rainwater-collecting facility are connect with the import of first rain separate tank by rainwater transmission facilities, first rain separation The outlet in pond and the import of sedimentation basin connect, and the outlet of sedimentation basin and the import of clear water reserviors connect.It is converged by rainwater-collecting facility The rainwater for collecting roof, road surface and afforested areas is stored in clear after rainwater transmission facilities enters first rain separate tank, sedimentation basin purification Pond, and distribute according to need to each water use sector.Water use sector can be subdistrict greening irrigation, water sprinkling path, carwash etc..
Further, the rainwater-collecting facility includes roofing collecting gutter, rain pipe and roadside shallow ridges, roofing collecting gutter Under cell roofing, pipe one end of raining is connect with roofing collecting gutter, and the pipe other end that rains is connect with rainwater transmission facilities;Road Side shallow ridges is set to beside road, and is connect with rainwater transmission facilities.Roofing collecting gutter is used to collect the rain on cell housing roof Water, roadside shallow ridges are used to collect the rainwater on road.
Further, the rainwater transmission facilities includes ecological grass ditch, cobble shallow ridges, non-irrigated small stream or sunk type greenery patches.Respectively Part is permeable structure, has the effects that lower infiltration, water storage, backwater;Ecological grass ditch is laid with plant-growth carpet by trapezoidal Tu Qu and forms, ovum Stone shallow ridges by U-shaped native canal place mat different-grain diameter cobble into etc..Rainwater transmission facilities elevation meets rainwater gravity flow charge for remittance requirement, and With certain purified treatment effect.
It further, further include Artificial Rain water landscape wetland, clear water reserviors top is equipped with overflow hole, overflow hole and artificial rainwater Landscape wetland is connected by drainage pipeline.Extra water is discharged from overflow hole in clear water reserviors, by drainage pipeline, into Artificial Rain Water landscape wetland.
Further, water-supply-pipe is equipped in first rain separate tank, water-supply-pipe bottom surface is equipped with floating gate, and water-supply-pipe one end is as just The import of rain separate tank, outlet of the water-supply-pipe other end as first rain separate tank.The buoyancy Men Chu Pluvial is kept open, from The rainwater that water-supply-pipe one end flows into is fallen into just rain separate tank;When water level touches buoyancy door, due to buoyancy, buoyancy door is certainly Dynamic to close, rainwater is flowed out from the water-supply-pipe other end, and later period rainwater then enters sedimentation basin at this time.
Further, water-supply-pipe leading portion is equipped with trash rack.Trash rack is for intercepting large volume sundries.
Further, first rain separation bottom of pond portion is equipped with blowdown valve.Blowdown valve can be connected to municipal wastewater pipeline, be discharged when needing Early period rainwater.
Further, sedimentation basin is divided into the area Chu Chen, settling zone and clear water zone by partition, is stopped with extending rainwater delay waterpower The time is stayed, sand particles sedimentation is conducive to.
Further, immersible pump is equipped in clear water reserviors.Rainwater for being delivered to each water use sector by immersible pump on demand.
Beneficial effects of the present invention: roof, road surface and subdistrict greening region rainwater are collected by rainwater-collecting facility, through rain Water transmission facilities sequentially enters just rain separate tank, sedimentation basin, clear water reserviors is stored in after purification, and can distribute according to need and use water to each Unit is discharged into artificial Rain-fed wetland by the way that the overflow port of clear water reserviors upper end is arranged in extra water.Present invention combination resident is small Area's layout collects and purifying rainwater, meets the water demands such as water sprinkling path in cell, Afforestation Landscape, has saved water resource, and base Originally rain dirt hybrid junction problem has been prevented, has not only had higher economic value, in addition there is certain Regulation capacity, effectively promoted in cell Flooded resilience.The system has the advantage that first makes full use of cell space Collection utilization rainwater, and can preferentially meet Demand is seeped under the recharge of ground water, the operating pressure of city planting ductwork when rainfall is effectively reduced reduces city surface source pollution object and enters river Lake Water Body.It realizes and blends ecological circulation utilization under the nature of rainwater, improve the ecological environment of cell.Second rainwater mainly passes through rain Water transmission facilities blends nature discharge under realizing, do not need to bury special rain drainage pipe in cell, reduce cell basis Construction cost and maintenance cost.
Detailed description of the invention
Fig. 1 is a kind of residential area rainwater-collecting and the floor map of the system of utilization of the invention.
Fig. 2 is the profilograph of first rain separate tank of the invention.
Fig. 3 is the structural schematic diagram of sedimentation basin of the invention.
Fig. 4 is rainwater-collecting purification of the invention and utilizes flow chart.
In figure: 1, roof;2, rain pipe;3, roofing collecting gutter;4, cobble shallow ridges;5, roadside shallow ridges;6, ecological grass ditch; 7, road;8, sedimentation basin;9, clear water reserviors;10, water pump;11, water use sector;12, Rain-fed wetland;13, green land;14, Chu Yufen From pond;15, floating gate;16, water-supply-pipe;17, pool wall;18, blowdown valve;19, culvert pipe is buried.
Specific embodiment
Below in conjunction with attached drawing, the following further describes the technical solution of the present invention.
As shown in Figure 1, a kind of residential area rainwater-collecting with using system include rainwater-collecting facility, rainwater transmission set It applies, first rain separate tank 14, sedimentation basin 8, clear water reserviors 9 and Artificial Rain water landscape wetland 12.
Rainwater-collecting facility includes roofing collecting gutter 3, rain pipe 2 and roadside shallow ridges 5.Roofing collecting gutter 3 is in cell house Under roofing, the rainwater of roofing is collected.The pipe 2 that rains connects roofing collecting gutter 3, and rainwater flows through the pipe 2 that rains to rainwater transmission facilities. Roadside shallow ridges 5 is brickwork construction, and sand finish can be laid with cover board on roadside shallow ridges 5, collect rainwater on road surface, can under road 7 It arranges culvert pipe 19 (connecting pipe), the catchment area separated for connecting transmission by hard surface.5 sectional dimension of roadside shallow ridges 30cm*20cm can meet road surface drainage requirement in general cell.
Rainwater transmission facilities is set in roofing 1 and 7 surrounding of road, rainwater transmission facilities can be cobble shallow ridges 4, ecological grass The ecology transmission irrigation canals and ditches such as ditch 6.Can be understood as it is described ecology transmission irrigation canals and ditches can be arranged in it is any one around building and road Place, for rainwater of collecting, converge, rainwater is by preferentially meeting lower infiltration demand when ecology transmission facilities, when rainfall is more than that lower seep is born When lotus, rainwater will converge into just rain separate tank 14 along rainwater transmission facilities.The longitudinal slope of road 7 should meet corresponding to the design of horizontal slope Highway layout specification, ecology transmission irrigation canals and ditches arrangement should meet rainwater gravity flow require.Cobble shallow ridges 4 is to build irrigation canals and ditches in common soil Interior place mat cobble, ecological grass ditch 6 is is laid with plant-growth carpet to build in common soil in irrigation canals and ditches, and cobble shallow ridges 4 and ecological grass ditch 6 and week It encloses greenery patches smoothly to connect, on the one hand collects the pipe 2 that rains, 5 water of roadside shallow ridges, it is unrestrained on the other hand can to collect greening earth's surface around Stream realizes backwater, desilting, lower infiltration and delivering rainwater.
As shown in Figure 1 and Figure 2, first rain separate tank 14 is brickwork construction, including water-supply-pipe 16, floating gate 15, pool wall 17 and row Dirty valve 18.In the first Pluvial, floating gate 15 is kept open, and rainwater is fallen into pond;With the rising of pool inner water position, make in buoyancy It is gradually closed with lower floating gate 15, rainwater enters sedimentation basin 8 through top water-supply-pipe 16.In the water inlet and water outlet of water-supply-pipe 16 Trash rack is respectively set, filters larger floating material.By residual on waste water in artificial periodically discharge just rain separate tank 14 and trash rack Object is stayed, safe handling is carried out.
As shown in figure 3, sedimentation basin 8 is rectangular sedimentation tank, concrete structure, integral cast-in-situ semitight pond body.Sedimentation basin 8, which divides, is Three sections, the respectively area Chu Chen, settling zone, clear water zone.The S-type trend of water flow improves precipitating effect to extend the rainwater residence time Fruit.When rainwater enters the area Chu Chen by water inlet, discharge area increases, and flow rate of water flow gradually decreases, and the substances such as silt gradually settle. According to settling pit design specification, available depth is not more than 1.2 meters, generally 0.25~1.0m;The inorganic particle carried secretly in rainwater Sink under the effect of gravity, rainwater maximum flow rate in pond is 0.3m/s, minimum 0.15m/s, with reference to stopping when rainwater maximum Stay the time not less than 30s.Clarification rainwater after settlement enters clear water reserviors 9 by water outlet pipeline and stores.
Clear water reserviors 9 are concrete structure, and the totally-enclosed pond body of integral cast-in-situ connects the water outlet of settling pit 8;Surrounding carries out at antiseepage Reason, can effectively avoid rain effluent seepage from polluting.Overflow hole is arranged in 9 upper end of clear water reserviors, and extra water overflows into connection Rain-fed wetland 12, be integrally formed ecological purification balance system.Immersible pump 10 is set in clear water reserviors 9, is conveyed for water use sector 11 Purified rainwater.Warning line is set in clear water reserviors 9, when moisture storage capacity is lower than warning line, will stop supplying water use sector Water.Rainwater is big through synergistic effect, the organic matters such as nitrogen phosphorus such as plant physical filtering, plant absorption biochemical degradations in artificial swamp 12 Amount is reduced, and is further purified water.
Water use sector 11 is fetched water from clear water reserviors 9 by immersible pump 10, for including green land irrigation, water sprinkling path, supplement Landscape water, flushing vehicle etc., realize that rainwater recycles.
Water use sector 11 is connected to rainwater transmission facilities with Rain-fed wetland 12 again, real into cell Rainwater collection system The ecological circulation of existing rainwater utilizes.
Using above system, rainwater is after the filtering of the preliminary sedimentations such as cobble shallow ridges 4, ecological grass ditch 6, into first rain separate tank 14, sedimentation basin 8 eventually enter into the savings of clear water reserviors 9 by interception, filtering, absorption, precipitation process.After purification in clear water reserviors 9 Rainwater, for water use sector 11 use.
Each implementation technical characteristic of case described above can carry out any combination extension according to cell actual conditions, to make Description is succinct, does not all carry out expansion description to respectively implementing technical characteristic all possible combinations in case.As long as also, these are implemented Paradox problem is not present in the combination of technical characteristic, all can be considered this range for illustrating to record.It should be pointed out that at this For the those of ordinary skill in field, in the case where not departing from present inventive concept and range, place Practical Project can be directed to Situation makes modification and improvement appropriate, and therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (9)

1. a kind of residential area rainwater-collecting and the system of utilizing, it is characterised in that: set including rainwater-collecting facility, rainwater transmission It applies, first rain separate tank, sedimentation basin and clear water reserviors, rainwater-collecting facility and the import of first rain separate tank are connected by rainwater transmission facilities It connects, the outlet of first rain separate tank and the import of sedimentation basin connect, and the outlet of sedimentation basin and the import of clear water reserviors connect.
2. residential area rainwater-collecting according to claim 1 and the system of utilizing, it is characterised in that: the rainwater-collecting Facility includes roofing collecting gutter, rain pipe and roadside shallow ridges, and roofing collecting gutter is set under cell roofing, and rain pipe one end and room The connection of face collecting gutter, the pipe other end that rains are connect with rainwater transmission facilities;Roadside shallow ridges is set to beside road, and is transmitted with rainwater Facility connection.
3. residential area rainwater-collecting according to claim 1 and the system of utilizing, it is characterised in that: the rainwater transmission Facility includes ecological grass ditch, cobble shallow ridges, non-irrigated small stream or sunk type greenery patches.
4. residential area rainwater-collecting according to claim 1 and the system of utilizing, it is characterised in that: further include artificial rainwater Landscape wetland, clear water reserviors top are equipped with overflow hole, and overflow hole is connect with Artificial Rain water landscape wetland by drainage pipeline.
5. residential area rainwater-collecting according to claim 1 and the system of utilizing, it is characterised in that: set in first rain separate tank There is water-supply-pipe, water-supply-pipe bottom surface is equipped with floating gate, import of the water-supply-pipe one end as first rain separate tank, water-supply-pipe other end conduct The outlet of first rain separate tank.
6. residential area rainwater-collecting according to claim 5 and the system of utilizing, it is characterised in that: water-supply-pipe leading portion is equipped with Trash rack.
7. residential area rainwater-collecting according to claim 5 and the system of utilizing, it is characterised in that: first rain separates bottom of pond portion Equipped with blowdown valve.
8. residential area rainwater-collecting according to claim 1 and the system of utilizing, it is characterised in that: sedimentation basin is by partition point It is divided into the area Chu Chen, settling zone and clear water zone.
9. residential area rainwater-collecting according to claim 1 and the system of utilizing, it is characterised in that: be equipped in clear water reserviors latent Water pump.
CN201910218615.4A 2019-03-21 2019-03-21 A kind of residential area rainwater-collecting and the system of utilizing Pending CN109836017A (en)

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CN110590028A (en) * 2019-09-21 2019-12-20 四川大学工程设计研究院有限公司 Ecological rainwater recycling system and maintenance method
CN112049185A (en) * 2020-08-28 2020-12-08 南昌工程学院 Multistage distributed urban rainwater comprehensive utilization system and construction method thereof

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Publication number Priority date Publication date Assignee Title
CN110590028A (en) * 2019-09-21 2019-12-20 四川大学工程设计研究院有限公司 Ecological rainwater recycling system and maintenance method
CN112049185A (en) * 2020-08-28 2020-12-08 南昌工程学院 Multistage distributed urban rainwater comprehensive utilization system and construction method thereof

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Application publication date: 20190604