CN106968317A - A kind of construction site rainwater recycle reutilization system - Google Patents
A kind of construction site rainwater recycle reutilization system Download PDFInfo
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- CN106968317A CN106968317A CN201710342907.XA CN201710342907A CN106968317A CN 106968317 A CN106968317 A CN 106968317A CN 201710342907 A CN201710342907 A CN 201710342907A CN 106968317 A CN106968317 A CN 106968317A
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- rainwater
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B1/00—Methods or layout of installations for water supply
- E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
- E03B1/041—Greywater supply systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B1/00—Methods or layout of installations for water supply
- E03B1/04—Methods or layout of installations for water supply for domestic or like local supply
- E03B1/041—Greywater supply systems
- E03B2001/047—Greywater supply systems using rainwater
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Sewage (AREA)
Abstract
A kind of construction site rainwater recycle reutilization system, including system for reclaiming rainwater, processing system, rain recycling system and the make-up system being sequentially communicated；The system for reclaiming rainwater includes catch-basin and the roof rainwater collection case connected with catch-basin and ground rainwater gutter；The processing system includes the sedimentation basin connected with catch-basin, and the sedimentation basin is three-level sedimentation basin including the first stage precipitation tank, second-level settling pond and the clear water reserviors that are sequentially communicated；The rain recycling system includes the vehicle washing system connected with first stage precipitation tank and clear water reserviors circulation and circulates the rainwater-collecting tank connected with clear water reserviors；The make-up system includes the municipal tap water pipe network and municipal drainage pipe network connected with rainwater-collecting tank.The present invention solves construction site rainwater and can not be fully used, and causes the problem of water resource waste, construction cost increase.
Description
Technical field
The present invention relates to field of energy utilization, particularly a kind of construction site rainwater recycle reutilization system.
Background technology
Construction is that one of water rich and influential family is mainly used in city all the time, according to correlation measuring and calculating, and every square metre of construction of China is used
About 1 ton of water.Except needing to expend great lot of water resources in such as production process of the construction material such as concrete, mortar, building block, stone material
Outside, in terms of the various waterings in job site, depositing dust, vehicle wash, concrete curing, workmen's daily life wash water
It account for very big ratio.But substantial amounts of base pit dewatering, natural rainwater often do not obtain enough attention but, cause water resource
Waste, and add the construction cost of engineering, therefore the use of construction site rainwater recycle collection reutilization system at the construction field (site)
By as a kind of inevitable trend.
The content of the invention
It is an object of the invention to provide a kind of construction site rainwater recycle reutilization system, construction site rainwater is solved not
It can be fully used, cause the problem of water resource waste, construction cost increase.
To achieve the above object, the present invention is adopted the following technical scheme that：A kind of construction site rainwater recycle reutilization system,
Including the system for reclaiming rainwater being sequentially communicated, processing system, rain recycling system and make-up system；
The system for reclaiming rainwater includes catch-basin and the roof rainwater collection case and ground rainwater that are connected with catch-basin
Gutter；The processing system includes the sedimentation basin connected with catch-basin, and the sedimentation basin is three-level sedimentation basin including connected successively
Logical first stage precipitation tank, second-level settling pond and clear water reserviors；The rain recycling system includes and first stage precipitation tank and clear water
The vehicle washing system of pond circulation connection and the rainwater-collecting tank connected with clear water reserviors circulation；
The make-up system includes the municipal tap water pipe network and municipal drainage pipe network connected with rainwater-collecting tank.
It is preferred that, the roof rainwater collection case is connected by pipeline with toilet flushing system.
It is preferred that, the ground rainwater gutter includes collecting Office Area and the daily routines area gutter of living area rainwater
Face the construction area gutter of side road rain water with collection job site.
It is preferred that, the sedimentation basin is rectangle form pool, the internal dividing wall set by two pieces of parallel intervals is divided into one-level
Sedimentation basin, second-level settling pond and clear water reserviors；Separated between the first stage precipitation tank and second-level settling pond by the first dividing wall, institute
State the first dividing wall upper one end be provided with connection the first overflow launder of the two；Pass through between the second-level settling pond and clear water reserviors
Second dividing wall separates, and the upper one end of second dividing wall, which is provided with, connects the second overflow launder of the two；In the clear water reserviors
Provided with elevator pump.
It is preferred that, the pond of the first stage precipitation tank and second-level settling pond is deeply identical and is less than the pond of clear water reserviors depth.
It is preferred that, the side wall top interval of the sedimentation basin is provided with three notches；One of notch correspondence is opened in one
Level sedimentation basin position, for backflow notch；Another two notch correspondence is opened in clear water reserviors position, is Ka Guancaokou, the Ka Guancaokou
Interior card has connecting water pipe；The width of the backflash is more than the width of card tube seat.
It is preferred that, the side-wall outer side correspondence notch position of the sedimentation basin is provided with elongated guiding gutter, the guiding gutter
Bottom land is obliquely installed from Ka Guancaokou to backflow notch direction, and the gradient is 2%；The guiding gutter and backflow notch joint bottom
Face is concordant；The outer wall of the guiding gutter is provided with bayonet socket.
It is preferred that, the vehicle washing system includes carwash platform and the connection that one end is fastened on the bayonet socket of guiding gutter outer wall
Water spray pipe support in carwash platform both sides；The parallel uniform intervals in upper surface of the carwash platform are provided with vertical guiding gutter axis side
To drainage groove, the drainage groove be obliquely installed to guiding gutter side and the gradient be 2%；The upper table of the carwash platform
Face and the either flush of sedimentation basin；The water spray pipe support is connected by the connecting water pipe in card tube seat with clear water reserviors.
It is preferred that, the clear water reserviors connect to form circulation loop with rainwater-collecting tank head and the tail；The rainwater-collecting tank enters
The mouth of a river is connected by rainwater-collecting tank inlet pipeline with clear water reserviors, delivery port is connected by rainwater-collecting tank outlet pipeline and clear water reserviors
It is logical.
It is preferred that, the rainwater-collecting tank also connected by depositing dust pipeline with dust falling system, by green area irrigation pipeline with
Irrigation system for greenbelt is connected, connected by concrete curing pipeline with storage concrete curing system.
Compared with prior art the invention has the characteristics that and beneficial effect：The construction site rainwater recycle of the present invention is again
Using system, the reasonable recycling and reuse of construction site rainwater are realized, can not only be saved with the use of substantial amounts of reduction running water
About water resource, also reduces Construction Cost；It is respectively formed and is recycled back between sedimentation basin and vehicle washing system and rainwater-collecting tank
Road, realizes the recycled for multiple times for reclaiming rainwater, improves the utilization rate of rainwater；Rainwater-collecting tank also with municipal tap water subsystem
Connected with municipal drainage subsystem, it is ensured that the benign cycle between rainwater-collecting tank and sedimentation basin.
In urban construction, note development rainwater recycle and recycle engineering, the rainwater saving being discharged originally is got off
Utilize, both add water resource, be also the good measure for saving running water.Meanwhile, by the extensive development of rainwater catchment system, by
Kept or bled back here underground in rainwater, reduce displacement, alleviate city flood damage threat, therefore, underground water is returned
Mend, water environment is improved, and ecological environment is repaired；It can be said that rainwater catchment system is city water resource sustainable use
One of important measures；Shortage of water resources can be solved to a certain extent using rainwater recycle reutilization technology, protected beneficial to environment
The problems such as shield and sustainable development, rainwater catchment system technology is used for guard station of constructing, is a good try, helps to apply
Done one's duty in terms of using water wisely and water resources development work order position.
Rainwater utilization operating cost is cheap, and economic benefit is protruded；Job site makes full use of the rainwater of collection to reduce
The use of running water, it may also be used for green area irrigation, cleaning etc. of flushing the toilet, saving expense is considerable, most importantly saves
The limited water resource in Beijing area, and the rainwater-collecting equipment applied of this engineering is also setting of being repeatedly used in turn
Standby, collecting device input can repeatedly make thinner, and improve resource utilization, it is to avoid the waste that construction material is disposably put into.
In the reutilization system that the composite can be widely applied to water resource.
Brief description of the drawings
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Fig. 1 is the schematic diagram of the system of the present invention.
Fig. 2 is the system diagram of rain water on roof recycling system.
Fig. 3 is the system diagram of ground rainwater recycling system.
Fig. 4 is the schematic diagram of the rainwater recycle reutilization system of embodiment one.
Fig. 5 is the structural representation that sedimentation basin is connected with vehicle washing system.
Fig. 6 is the planar structure schematic diagram of sedimentation basin.
Fig. 7 is the structural representation of A-A sections in Fig. 6.
Fig. 8 is the structural representation of B-B sections in Fig. 6.
Fig. 9 is the stereogram in gutter.
Figure 10 is the plan of gutter groove.
Figure 11 is the elevation of gutter groove.
Figure 12 is the elevation of rain perforaled strainer.
Figure 13 is the plan of rain perforaled strainer.
Figure 14 is the stereogram of catch-basin.
Figure 15 is that well room builds row's brick schematic diagram by laying bricks or stones.
Reference：1- catch-basins, 2- roof rainwater collections case, 3- daily routines area gutter, 4- construction areas row
Ditch, 5- sedimentation basins, 6- vehicle washing systems, 7- rainwater-collectings tank, 8- municipal tap water pipe network, 9- municipal drainages pipe network,
10- toilet flushing systems, 11- dust falling systems, 12- irrigation system for greenbelt, 13- storage concrete curing systems.
Embodiment
Embodiment one is referring to shown in Fig. 1 and Fig. 4, by taking a certain mesh construction site rainwater recycle reutilization system in Beijing as an example,
Consider from the climatic characteristic of Beijing area, Pekinese year sunshine time is 2778.7 hours, weather is that typical warm temperate zone is semi-moist
Moisten continental monsoon climate, summer is burning hot and rainy, winter cold is dried, and spring, autumn are very brief, according to《Building and cell rainwater utilization
Engineering legislation》(GB50400-2006) average annual rainfall for drawing Beijing is 571.9mm, the moon (July) most big every year
Rainfall is 185.2mm, is one of most area of North China's rainfall, windward slope is up to more than 700mm, rainy season in front of the mountains
Distribution is very uneven, and annual precipitation concentrates on summer, seven, August often have heavy rain appearance.
A kind of construction site rainwater recycle reutilization system, including system for reclaiming rainwater, processing system, the rain being sequentially communicated
Water reutilization system and make-up system；The system for reclaiming rainwater includes catch-basin 1 and the roofing rain connected with catch-basin
Water collection tank 2 and ground rainwater gutter；The processing system includes the sedimentation basin 5 connected with catch-basin, and the sedimentation basin 5 is
Three-level sedimentation basin including the first stage precipitation tank being sequentially communicated, second-level settling pond and clear water reserviors；The rain recycling system bag
Include the vehicle washing system connected with first stage precipitation tank and clear water reserviors circulation and circulate the rainwater-collecting tank 7 connected with clear water reserviors；Institute
State municipal tap water pipe network 8 and municipal drainage pipe network 9 that make-up system includes connecting with rainwater-collecting tank 7；The rain water on roof
Collecting box 2 is connected by pipeline with toilet flushing system 10；The ground rainwater gutter includes collecting Office Area and life
The construction area gutter 4 of side road rain water is faced in the daily routines area gutter 3 and collection job site of area's rainwater；The clear water reserviors
Connect to form circulation loop from beginning to end with rainwater-collecting tank 7；The water inlet of the rainwater-collecting tank 7 passes through rainwater-collecting tank water inlet pipe
Road is connected with clear water reserviors, delivery port is connected by rainwater-collecting tank outlet pipeline with clear water reserviors；The rainwater-collecting tank 7 also passes through
Depositing dust pipeline is connected with dust falling system, connected by green area irrigation pipeline with irrigation system for greenbelt, by concrete curing pipeline
Connected with storage concrete curing system.
The sedimentation basin 5 is rectangle form pool, the internal dividing wall set by two pieces of parallel intervals is divided into first stage precipitation tank,
Second-level settling pond and clear water reserviors；Separated between the first stage precipitation tank and second-level settling pond by the first dividing wall, described first
The upper one end of dividing wall, which is provided with, connects the first overflow launder of the two；Between the second-level settling pond and clear water reserviors by second every
Separate from wall, the upper one end of second dividing wall, which is provided with, connects the second overflow launder of the two；It is provided with and carries in the clear water reserviors
Rise pump；The pond of the first stage precipitation tank and second-level settling pond is deeply identical and is less than the pond of clear water reserviors depth；The side of the sedimentation basin
Wall top interval is provided with three notches；One of notch correspondence is opened in first stage precipitation tank position, for backflow notch；Another two groove
Mouth correspondence is opened in clear water reserviors position, is Ka Guancaokou, and the intraoral card of card tube seat has connecting water pipe；The width of the backflash is big
In the width of card tube seat；The side-wall outer side correspondence notch position of the sedimentation basin 5 is provided with elongated guiding gutter, the guiding gutter
Bottom land is obliquely installed from Ka Guancaokou to backflow notch direction, and the gradient is 2%；The guiding gutter and backflow notch joint bottom
Face is concordant；The outer wall of the guiding gutter is provided with bayonet socket.
Carwash platform and be connected to carwash that the vehicle washing system 6 is fastened on the bayonet socket of guiding gutter outer wall including one end
The water spray pipe support of platform both sides；The parallel uniform intervals in upper surface of the carwash platform are provided with the row of vertical guiding gutter axis direction
Water groove, the drainage groove is obliquely installed to guiding gutter side and the gradient is 2%；The upper surface of the carwash platform is with sinking
The either flush in shallow lake pond；The water spray pipe support is connected by the connecting water pipe in card tube seat with clear water reserviors.
First, catch-basin is designed：It is shown in Figure 14, according to《Code for design of outdoor sewerage engineering》Catch-basin well head spacing is preferably 25
Catch-basin sets one using 30m in~50m, this engineering can meet use requirement.
Catch-basin construction process：The construction line-putting → excavation pit → rammed earth → mixes and stirs 3:7 dirt (pouring concrete) → block
Build porous brick → installation rainwater grid → maintenance.
Catch-basin construction method：
(1) it is basic：Basis is using concrete bed course basis, inwall cement sand plaster.
(2) well room is built by laying bricks or stones：Shown in Figure 15, concrete foundation intensity must be reached after 1.2MPa, can carry out well
Room is built by laying bricks or stones, before building by laying bricks or stones, should will be built part by laying bricks or stones and be cleaned out, and wetting of sprinkling water, and to the position brush plain-water slurry of dabbing processing, well
Room is built by laying bricks or stones builds method using header, and two sides row's brick, the big mortar joint in outside " two points of jujubes " block is finished building after one layer, then fills a mortar, so
After repave to grout and build last layer brick, vertically seam should stagger two layers of brick up and down；Lay bricks and preferably use " 31 " brick method, i.e., one shovel ash,
One piece of brick, one squeeze and rubbed；During using paving slurry processes operation, the of length no more than 500mm of paving slurry, brick setting horizontal mortar joint full degree of mortar at bed joint is not
90% must be less than, vertical mortar joint preferably uses shove or adds paste-making method, makes its mortar full, forbidden with the water punching slurry cementation of fissures.When building by laying bricks or stones,
The fissure of displacement above and below wanting, mutually overlap joint, horizontal mortar joint and the control of vertical mortar joint are in 8~12mm.
(3) mark time installation：Mark time installation when, it is desirable to vertical up and down, size is consistent, marks time to answer and is installed when building Jing Qiang by laying bricks or stones,
Position is accurate, measures its spacing with chi at any time, jail is buried with mortar when laying bricks, and the benefit that must not hole afterwards dress, mortar does not solidify
Before must not trample.
(4) pit shaft is built by laying bricks or stones：Pit shaft height should meet design requirement, and center line is hung when building by laying bricks or stones, and internal diameter chi is measured when building
It is very little, prevent size from deviation occur, when circular closing in well shaft is built by laying bricks or stones, to be closed up according to design requirement.Four sides is every when closing up
30mm is not to be exceeded in layer；Every layer is not to be exceeded 40~50mm when three faces are closed up.
(5) wipe one's face jointing：Brick face first should be moistened with water before wiping one's face, then be wiped one's face using three times methods, first pass 1：2.5 cement
Mortar bottoming, thick 10mm, it is necessary to be pressed into brickwork joint, and brick face firm pasting, it is levelling to smear thick 5mm for second time, smears thick 5mm pavings the 3rd time
Along press polish, wiping one's face to accomplish without any letup, surface must not sand leakage grain, after the completion of wiping one's face, Jing Ding checks wall before answering covering curing, jointing
Mortar joint depth, removes metope debris, watering moistening.Jointing requires that the depth is consistent, and junction is smooth, general to require deeper by 3 than metope
~4mm, has hooked one section and has cleaned one section.
(6) well ring and well lid are installed：Well ring is concrete prefabricated using C25, lower berth 1：3 cement mortar seat bottom.Well lid is used
Model OT500-7 spheroidal graphite cast-iron novel anti-theft well ring cowling, in order to ensure the smooth-going of well lid and pavement of road, I takes charge of will be according to
Pavement Design elevation, vertical and horizontal gradient, complete the installation of well ring and well lid before pavement asphalt upper layer is constructed；Specific construction size
It can refer to construction atlas 02S515《Drainage inspection well》.
2nd, sedimentation basin is designed：Referring to shown in Fig. 5 to Fig. 8, construction sewage, the mud in building site must be provided with three-level precipitation row
Facility is put, brick rear cement troweling can be used by making sedimentation basin, and also useful commercial concrete is cast, but bottom plate must commodity in use
Concrete, sedimentation basin should set outer diameter ruler modest ability >=5.5m, width >=3m, depth >=2.0m, upper edge hole should from the ground height≤
500mm, pool wall and three-level precipitation isolation wall thickness >=200mm, base plate thickness answer >=200mm；Set enclosing accounts for road building site, its
The outside dimension that sedimentation basin is set can moderately reduce, but must meet displacement needs；In this engineering, sedimentation basin should set outer diameter ruler
Modest ability is that 5.96m, a width of 3.6m, depth are 2.2m or 2.7m, and the external diameter pond depth of wherein first stage precipitation tank and second-level settling pond is
2.2m, the outer diameter ruler depth of clear water reserviors is 2.7m, and pool wall and three-level precipitation isolation wall thickness are 240mm, and base plate thickness should be
200mm。
(1) Sizing requirements of sedimentation basin：
1) superelevation of sedimentation basin is no less than 0.3m.
2) available depth of sedimentation basin preferably uses 2.0m~4.0m.
3) when using sludge bucket spoil disposal, each sludge bucket all should set single gate valve and discharge pipeline, the skew wall of sludge bucket
With the inclination angle of horizontal plane, Fang Dou is preferably 60 °, and circle bucket is preferably 55 °.
4) diameter of discharge pipeline is no less than 200mm.
5) sedimentation basin should set excluding, conveying and disposal facility for scum silica frost.
3rd, rainwater-collecting tank：According to《Code for design of outdoor sewerage engineering》Regulation, the volume of rainwater-collecting tank is no less than maximum
One water pump 30s water yield, shown in Figure 4, the water pump connected in this engineering with rainwater-collecting tank has two, and one is located at
In sedimentation basin, it is responsible for supplying water to sedimentation basin, another is connected with rainwater-collecting tank by pipeline, is responsible for supplying water for applying to sprinkling truck
Work scene depositing dust is used, two 50m of site layout project3Rainwater-collecting tank be fully able to meet construction requirement, used in this engineering
Rainwater-collecting tank is the overall rainwater collection pool of YFRP- environment-friendly types, and material is that can to dig out circulation at the end of fiberglass, engineering sharp again
With, environment will not be damaged, and saving construction material.
4th, gutter：It is shown in Figure 9, this engineering due to job site road surface harden do it is good, road is flat, in order to
Construction volume is reduced, mouth of a river depth is unsuitable too deep, therefore uses draining ditch water discharge；The gutter of job site requires not strict, only
Job site Lin Biandaolu drainage requirement need to be met.
Referring to shown in Figure 10 and Figure 11, the longitudinal section in gutter described in this engineering is semicircular arc, and side slope value uses 1:
0.75, the gutter includes groove and cover plate, and the groove includes semicircular arc main body and prolonged along body end to both sides
The extension side stretched, the two ends on the extension side are provided with connecting hole, and a length of 1000mm of groove, a width of 460mm, effective draining are deep
Spend for 200mm；The cover plate is rectangular slab, including main body and overlap edge from main body to both sides that extend along, the thickness of the overlap edge
Degree is that the thickness that 35mm is less than main body is 50mm；The middle part of the cover plate is provided with rain perforaled strainer, and the rain perforaled strainer is combed for rectangle
Son, a length of 500mm, width 400mm, cross dimensions is consistent with cover plate.
1) size design in gutter：Gutter of the present invention is designed primarily for job site, so the chi in gutter
It is very little unsuitable excessive, the convenient requirement of cleaning need to be only met, therefore the section in gutter is designed according to the shape of spade；
The length in this gutter devises six sizes altogether, and 0.5m, 1m, 1.5m, 2m, 2.5m, 3m make in order to the place of different length
With.
2) the material selection in gutter：Using stainless steel, transport and installation are all very convenient, and corrosion resistance is good,
Service life is long, reasonable price, specious, most importantly can meet green construction with Reusability, and civilized construction is applied
Work theory.
3) connected mode in gutter：Fixed, and often used between section gutter with bolt by connector
Soft water-proof strip fills out seam tightly, prevents rainwater leakage loss.
4) size design of rain perforaled strainer：Referring to shown in Figure 12 and Figure 13, for the size in correspondence gutter, rain perforaled strainer
Length use 500mm, width is 400mm, is separately processed again if any special requirement.
5) the material selection of rain perforaled strainer：In order to reach consistent effect attractive in appearance with gutter, so rain perforaled strainer is also adopted
Use stainless steel；But in view of all costly using stainless steel rain perforaled strainer, job site resource is made full use of, is utilized
Remaining concrete make with rain perforaled strainer size identical concrete prefabricated board, play protection gutter and keep gutter
The effect of cleaning, so not only reduces cost, and reduce the waste of resource.
6) connected mode of rain perforaled strainer：The section of rain perforaled strainer is designed according to the cross dimensions in gutter, itself
It can snap on gutter, will not be moved；It is attached in order on gutter.
7) construction faces by-pass road direction gutter and looks for the slope gradient to take 0.3%.Gutter is from distal end to catch-basin, sedimentation basin is looked for
Slope, meets drainage grade requirement.
5th, rainwater recycle utilizes the calculating of system
(1) design flow of storm drain QsCalculate：
It should be calculated by following equation：
Qs=q ψ F
In formula：Qs- design flow of storm drain (L/s)；
Q-design storm intensity [L/ (shm2]；
ψ-runoff coefficient；
F-catchment area (hm2)。
This engineering living area, Office Area ground are infiltration brick paving, so runoff coefficient takes 0.4, construction area ground is mixed
Solidifying soil surface, runoff coefficient takes 0.9.
(2) design storm intensity q is calculated：
It should be calculated by following equation：
In formula：Q-design storm intensity [L/ (shm2]；
T-rainfall duration (min)；
P-Designed recurrence period (a)；
A1, C, n, b-parameter, according to statistical method carry out calculating determination.
(3) the Design of Storm Sewer System return period：
The Design of Storm Sewer System return period, it should be determined according to factors such as the regional property of charge for remittance, lineament and climate characteristics.Together
One drainage system can use same return period or different reoccurrence.Return period typically uses 0.5~3a, important arterial highway, importantly
The area that area or short-term ponding can lead to grave consequences, typically using 3~5a, and answers Design coordination.Special vital area and
Secondary sites can take the circumstances into consideration to increase and decrease.Due to this woks under construction, it is impossible to there are a large amount of ponding, so the return period takes 5a.
(4) rainfall duration t of Storm Sewer System calculates：
T=t1+mt2
In formula：T-rainfall duration (min)；
t1Depending on-ground inlet time (min), apparent distance length, terrain slope and covered ground situation, typically using 5
~15min；
M-reduction coefficient, hidden pipe reduction coefficient m=2, open channel reduction coefficient m=1.2, in abrupt slope area, hidden pipe reduction system
Number m=1.2~2；
t2Rainwater fashionable colors (min) in-pipe duct.
In this engineering, ground inlet time takes 5min, and reduction coefficient is 2, and rainwater fashionable colors are 5min in pipe duct, so
The rainfall duration of calculating is 15min.
(5) design storm Strength co-mputation：
Design flow of storm drain is calculated：
Qs=q ψ F=67 × 0.4 × 1.3+67 × 0.9 × 1.0=95.14L/s
So the design flow of storm drain of this engineering is 95.14L/s.
The operation principle of the present invention：Rainwater recycle reutilization system in construction site of the present invention is divided into rain water on roof in principle
Recycling system and ground rainwater recycling system, and be described respectively.
First, rain water on roof recycling system：It is shown in Figure 2, the row in a organized way of job site temporary house roofing
Water is concentrated through roofing downpipe and imported in roof rainwater collection case 2, and flows by gravitational force into toilet flushing system 10, for health
Between flush the toilet and use, in the catch-basin 1 in roof rainwater collection case 2 on unnecessary stormwater overflow to ground and other roof rainwater collections
In case.
2nd, ground rainwater recycling system：It is shown in Figure 3, trickle down in the rainwater on ground, at least partially through existing
The seepage brick of field laying is infiltrated through in soil, most of daily routines area gutter 3 and construction area set by live periphery
The footpath of gutter 4 is flow in each catch-basin 1 at distribution scene, then is concentrated in remittance sedimentation basin 5, is precipitated by the one-level of sedimentation basin 5
Pond, second-level settling pond and clear water reserviors are carried out after three-level precipitation and filtering, are temporarily stored into sedimentation basin, and after being connected with vehicle washing system 6
Automatic cleaning for job site vehicle.
Water in the clear water reserviors of sedimentation basin is used for vehicle after being connected by connecting water pipe with the water spray pipe support of vehicle washing system
In cleaning, drainage groove of the waste water by the carwash platform for falling into vehicle washing system after vehicle cleaning, and by guiding gutter and return
Chute mouth, which is back in first stage precipitation tank, re-starts precipitation filtering.
In rainy season, it can be automatically flowed into when the hypervolia stored in sedimentation basin 5 in live rainwater-collecting tank 7；Precipitation
When water-holding quantity in pond 5 is not enough, then elevator pump diversion into sedimentation basin by being located in clear water reserviors；Water level in sedimentation basin leads to
Cross liquid level gauge, elevator pump and relay to automatically control, specifically, water level in clear water reserviors is detected by liquid level gauge, when clear water pool inner water
When position is less than low level setting value, automatically controls elevator pump in clear water reserviors and open, supplied water from rainwater-collecting tank 7 into clear water reserviors；When
When water level is in high-order setting value in clear water reserviors, control elevator pump is closed automatically, during beyond clear water reserviors maximum stage, in clear water reserviors
Water can automatically flow into rainwater-collecting tank；When barrier for some reason or rainwater is on the low side cause in rainwater tank rainwater not enough when, i.e. water reclaimed water
When position is less than lowest water level, automatically turns on running water and moisturizing is carried out to rainwater-collecting tank.
Water in rainwater-collecting tank 7 can be used for depositing dust, green area irrigation and the concrete curing of job site, wherein concrete
Maintenance need to be detected with water through pH value, met requesting party and be can be used；When in rainwater-collecting tank 7 water can not meet job site must
When using water temporarily of palpus, passes through the water supply of municipal tap water pipe network 8 and meets；The rainwater mistake collected in heavy rain rain water collecting tank 7
It is many, except precipitation and amount of storage calculating is carried out in advance, it is equipped with and meets as far as possible outside the finished product rainwater storage tank of demand, beyond rainwater
The unnecessary rainwater of the storage capacity of storage tank can be automatically flowed into municipal drainage pipe network 9.
Claims (10)
1. a kind of construction site rainwater recycle reutilization system, it is characterised in that：Including be sequentially communicated system for reclaiming rainwater, place
Reason system, rain recycling system and make-up system；
The system for reclaiming rainwater includes catch-basin (1) and the roof rainwater collection case (2) and ground rain that are connected with catch-basin
Water gutter；
The processing system includes the sedimentation basin (5) connected with catch-basin, and the sedimentation basin is three-level sedimentation basin including connected successively
Logical first stage precipitation tank, second-level settling pond and clear water reserviors；
The rain recycling system includes the vehicle washing system (6) and and clear water connected with first stage precipitation tank and clear water reserviors circulation
The rainwater-collecting tank (7) of pond circulation connection；
The make-up system includes the municipal tap water pipe network (8) and municipal drainage pipe network (9) connected with rainwater-collecting tank (7).
2. rainwater recycle reutilization system in construction site according to claim 1, it is characterised in that：The rain water on roof is received
Header (2) is connected by pipeline with toilet flushing system (10).
3. rainwater recycle reutilization system in construction site according to claim 2, it is characterised in that：The ground rainwater row
Ditch includes collecting Office Area and side road rain water is faced in the daily routines area gutter (3) and collection job site of living area rainwater
Construction area gutter (4).
4. the construction site rainwater recycle reutilization system according to claim any one of 1-3, it is characterised in that：It is described heavy
Shallow lake pond (5) is rectangle form pool, top surface is concordant with ground, and the internal dividing wall set by two pieces of parallel intervals is divided into one-level and sunk
Shallow lake pond, second-level settling pond and clear water reserviors；
Separated between the first stage precipitation tank and second-level settling pond by the first dividing wall, the upper one end of first dividing wall
It is provided with and connects the first overflow launder of the two；
Separated between the second-level settling pond and clear water reserviors by the second dividing wall, the upper one end of second dividing wall is provided with
Connect the second overflow launder of the two；
Elevator pump is provided with the clear water reserviors.
5. rainwater recycle reutilization system in construction site according to claim 4, it is characterised in that：The first stage precipitation tank
Deeply identical with the pond of second-level settling pond and less than clear water reserviors ponds are deep.
6. rainwater recycle reutilization system in construction site according to claim 5, it is characterised in that：The sedimentation basin (5)
Side wall top interval be provided with three notches；
One of notch correspondence is opened in first stage precipitation tank position, for backflow notch；
Another two notch correspondence is opened in clear water reserviors position, is Ka Guancaokou, and the intraoral card of card tube seat has connecting water pipe；
The width of the backflash is more than the width of card tube seat.
7. rainwater recycle reutilization system in construction site according to claim 6, it is characterised in that：The sedimentation basin (5)
Side-wall outer side correspondence notch position be provided with elongated guiding gutter, the bottom land of the guiding gutter is from Ka Guancaokou to backflow notch side
To being obliquely installed, and the gradient is 2%；
The guiding gutter is concordant with backflow notch joint bottom surface；
The outer wall of the guiding gutter is provided with bayonet socket.
8. rainwater recycle reutilization system in construction site according to claim 7, it is characterised in that：The vehicle washing system
(6) include the carwash platform that is fastened on the bayonet socket of guiding gutter outer wall of one end and be connected to the sparge pipe of carwash platform both sides
Frame；
The parallel uniform intervals in upper surface of the carwash platform are provided with the drainage groove of vertical guiding gutter axis direction, the draining
Groove is obliquely installed to guiding gutter side and the gradient is 2%；
The upper surface of the carwash platform and the either flush of sedimentation basin；
The water spray pipe support is connected by the connecting water pipe in card tube seat with clear water reserviors.
9. rainwater recycle reutilization system in construction site according to claim 8, it is characterised in that：The clear water reserviors and rain
Water collecting tank (7) head and the tail connection forms circulation loop；
The water inlet of the rainwater-collecting tank is by the way that rainwater-collecting tank inlet pipeline is connected with clear water reserviors, delivery port passes through rainwater collection
Collection tank outlet pipeline is connected with clear water reserviors.
10. rainwater recycle reutilization system in construction site according to claim 1, it is characterised in that：The rainwater-collecting
Tank (7) is also connected with dust falling system by depositing dust pipeline, connected by green area irrigation pipeline with irrigation system for greenbelt, by coagulation
Soil maintenance pipeline is connected with storage concrete curing system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710342907.XA CN106968317A (en) | 2017-05-16 | 2017-05-16 | A kind of construction site rainwater recycle reutilization system |
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| CN201710342907.XA CN106968317A (en) | 2017-05-16 | 2017-05-16 | A kind of construction site rainwater recycle reutilization system |
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| CN106968317A true CN106968317A (en) | 2017-07-21 |
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| CN201710342907.XA Pending CN106968317A (en) | 2017-05-16 | 2017-05-16 | A kind of construction site rainwater recycle reutilization system |
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