CN201539012U

CN201539012U - Infiltration-drainage pipe duct for comprehensive utilization of rainwater

Info

Publication number: CN201539012U
Application number: CN2009202925139U
Authority: CN
Inventors: 徐志通
Original assignee: Beijing Tidelion Kechuang Science & Technology Co Ltd
Current assignee: Beijing Tidelion S&I Rainwater Harvesting Technology Co., Ltd.
Priority date: 2009-12-11
Filing date: 2009-12-11
Publication date: 2010-08-04
Anticipated expiration: 2019-12-11

Abstract

The utility model relates to an infiltration-drainage pipe duct for the comprehensive utilization of rainwater, which consists of an infiltrating rainwater well of polyethylene and an infiltrating pipe duct with a solid wall of polyethylene. The infiltrating rainwater well includes a rainwater infiltrating well type, a split-flow infiltrating rainwater well type and a catchment infiltrating rainwater well type, and both the well wall and the well bottom are provided with holes. The infiltrating pipe duct is a horizontal catchment square duct which is wrapped with a geotextile, and is filled with gravels, and a perforated pipe is arranged inside the duct. The infiltrating rainwater wells are connected with each other through the perforated pipe. The infiltration-drainage pipe duct has the functions such as rainwater collection, storage, conveying, infiltration and storage adjustment and drainage. When used in the region with certain water infiltration capability, the infiltration-drainage pipe duct is capable of effectively decreasing flood peak flow, delaying appearance time of the flood peak, supplementing groundwater and improving water ratio of soil and air moisture.

Description

Sewer is oozed in a kind of rainwater comprehensive utilization

Affiliated technical field

The utility model relates to a kind of rainwater comprehensive utilization facility, especially builds the Storm Sewer Network of sub-district.

Background technology

For a long time, people give Urban Rainwater Pipe Networks single rainfall runoff discharge function, and a large amount of rainwater run off in vain, have cut off rainwater to phreatic supply.Urbanization process has been aggravated the sclerosis on ground, the increment that underground water obtains from rainfall is less and less, a large amount of rainwater that have multiple area source pollutants pour in pipe network, and flood peak shifts to an earlier date, and flow strengthens, pipe network can't bear the heavy load, the hydrology circulation and the urban ecological environment of nature more become to worsening, and present the city and develop more, and invest big more, drainage is complete more, the strange phenomenon that flood is serious more.Therefore, the angle innovation storm-water drainage technology of an urgent demand from keeping the circulation of the nature hydrology and repairing ecological environment.

Summary of the invention

In order fundamentally to overcome the deficiency of existing drainage system against rain, demonstrate fully the resource theory of soil and rainwater, keep the circulation of the nature hydrology, repair ecological environment, the utility model provides a kind of rainwater comprehensive utilization to ooze sewer, be applicable to that soil has the newly-built of certain percolating water ability area and the Storm Sewer Network of reconstructing, it has rainwater and collects, stores, carries, infiltrates, transfers storage discharging comprehensive function, can economize the land resource, cut down peak flood flow, delay the time that flood peak occurs, replenished underground water, improve the moisture content and the air humidity of soil.

The technical scheme that its technical problem that solves the utility model adopts is: rainwater comprehensive utilization is oozed sewer and is made up of one group of polyethylene finished product infiltration type catch-basin and polyethylene reality wall perforated pipe pipe duct two parts.The infiltration type catch-basin comprises infiltration catch-basin, abandoned stream infiltration catch-basin, three kinds of well types of catchment infiltration catch-basin, the equal perforate in the borehole wall and shaft bottom, and percent opening 1～3%, aperture 16mm has the rainwater infiltration function.The infiltration catch-basin adopts common well lid.The rain penetration well that catchments adopts well to comb, and establishes below well is combed and cuts dirty basket.Abandoned stream infiltration catch-basin, inlet tube and outlet tube below are established and are cut dirty plate, cut dirty plate and are seated on the dirty basket of cutting of bottom, well chamber, cut dirty basket liner geotechnique cloth bag.The infiltration pipe duct is an outsourcing geotextiles, the inner level side of catchmenting canal of filling the rubble rectangular cross section, geotextiles outer periphery 100mm coarse sands layer, ballast grain sizes 25～30mm, braiding channel width B=D+ (2 * 200), the high H=D+ of canal (2 * 200)+Δ H, Δ H=iL in the formula; D-perforated pipe internal diameter mm; L-length of pipe section m; The i-perforated pipe gradient, i=1～2%.Be laid on macadam middle punch pipe, two ends link to each other with the infiltration type catch-basin. in abandoned stream infiltration catch-basin, inlet tube and outlet tube pipe top flushes. in infiltration catch-basin and catchment infiltration well rainwater, the Guan Dingying of water inlet pipe is lower than at the bottom of the pipe of outlet pipe or flushes, be Δ h 〉=0, make pipe duct when rainfall, can store a certain amount of rainwater.Sewer, infiltration type catch-basin and the shared foundation trench of perforated pipe pipe duct are oozed in the rainwater comprehensive utilization.

During rainfall, the rainwater that the roof drainage system discharges is in the waterpower self-cleaning filter enters abandoned stream infiltration catch-basin, and early-stage rainwater enters by filter plate and cuts the dirt basket, and rainfall early-stage rainwater later permeates the ground, and cuts the dirty basket of mud of holding back and regularly removes.Comprise from catchmenting and ooze whole rainwater that sewer is oozed in saturating well of rainwater and the remittance of other environmentally-friendly gutter inlets, flow further downstream under the effect of pipe duct starting point catch-basin and landscape water body water surface discrepancy in elevation H2-H1, simultaneously, rainwater permeates the ground, and is accumulated in the pipe duct.Accumulate infiltrating and being a long-term process of rainwater to the influence of the hydrology, environment.

The beneficial effects of the utility model are, can effectively reduce the pollution of area source of rainwater, save land resources, reduce discharge value, alleviate the draining discharge pressure of existing drainage pipeline networks, reduce the drainage pipeline networks investment cost, replenish underground water source, keep the circulation of the nature hydrology and repair ecological environment, good economic benefit and social benefit are arranged.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the longitudinal plan of the utility model embodiment.

Fig. 2 is the 1-1 sectional view of Fig. 1.

Fig. 3 is the sectional view of the 2-2 of Fig. 1.

1. building roof gutters among the figure, 2. waterpower self-cleaning filter, 3. abandoned stream infiltration catch-basin, 4. well lid, the 4-1 well lid, 5. backfill, 5-1. backfill, 5-2. backfill, 6. top coarse sands layer, 6-1. top coarse sands layer, 6-2. top coarse sands layer, 6-3. the bottom coarse sands layer, 6-4. bottom coarse sands layer, 6-5. bottom coarse sands layer, 7. geotextiles, 7-1. geotextiles, 7-2. geotextiles, 8. rubble side's canal, 8-1. rubble side canal, 8-2 rubble side canal, 9. catchment infiltration catch-basin, 10. well is combed, 11. sections dirty baskets, 12 infiltration catch-basins, 13. landscape water bodies, 14. perforated pipes, 14-1. perforated pipe, 14-2. perforated pipe, 15. shaft bottom perforates, 15-1. the shaft bottom perforate, the perforate of 15-2. shaft bottom, 16. borehole wall perforates, 16.-1. borehole wall perforate, the perforate of the 16-2. borehole wall, 17. sections dirty baskets, 18. cut dirty plate, 19. rainwater pipes, 19-1. rainwater pipe.

The specific embodiment

In Fig. 1, the rainwater that building roof gutter (1) is collected, after waterpower self-cleaning filter (2) filters, send into abandoned stream infiltration catch-basin (3) by rainwater pipe (19), in abandoned stream infiltration catch-basin (3), granule sedimentation in the initial Split-flow rainwater is in the bottom of cutting dirty basket (17), the dirty basket (17) that cuts in the well is used to hold back the foreign material that (19-1) rainwater pipe initial Split-flow rainwater brings, the WIH position of abandoned stream infiltration catch-basin (3) is when flushing at the bottom of perforated pipe (14-2) inlet tube, and rainwater begins to flow to catchment infiltration catch-basin (9) through perforated pipe (14-2).The rainfall runoff on ground, the well that passes catchment infiltration catch-basin (9) is combed (10), is cut dirty basket (11) and enters in the well, the water surface in the well is when flushing at the bottom of perforated pipe (14-1) inlet tube, and rainwater flows to and permeates catch-basin (12), finally enters landscape water body (13) by perforated pipe (14).Because abandoned stream infiltration catch-basin (3), catchment infiltration catch-basin (9), infiltration catch-basin (12) all make borehole wall perforate (16), (16-1), (16-2) and shaft bottom perforate (15), (15-1), (15-2), abandoned stream infiltration rainwater (3), catchment infiltration catch-basin (9), infiltration catch-basin (12) and perforated pipe (14), 14-1), (14-2) be embedded in rubble side's canal (8), (8-1) respectively, (8-2), rainwater permeates the ground in the process of carrying, and is stored in rubble side's canal.Ooze in the excavation groove of sewer, rubble side's canal (8), (8-1), wrap up geotextiles (7), (7-1), (7-2) (8-2), at channel bottom shop coarse sands layer (6-3), (6-4), (6-5), rubble Fang Qu top geotextiles is spread coarse sands layer (6), (6-1), (6-2) outward, prevent that backfill (5), (5-1), (5-2) from entering rubble side's canal and reducing storage capacity, keep the good permeable effect of geotextiles.

Claims

1. sewer is oozed in a rainwater comprehensive utilization, it is characterized in that: form by one group of polyethylene finished product infiltration type catch-basin and the real wall perforated pipe of polyethylene pipe duct two parts, the infiltration type catch-basin comprises infiltration catch-basin, abandoned stream infiltration catch-basin, three kinds of well types of catchment infiltration catch-basin, the infiltration pipe duct is an outsourcing geotextiles, the inner level side of catchmenting canal of filling the rubble rectangular cross section.

2. sewer is oozed in rainwater comprehensive utilization according to claim 1, it is characterized in that: the equal perforate in catch-basin shaft bottom of polyethylene finished product infiltration type, percent opening 1～3%, aperture 16mm, the rainwater infiltration function is arranged, the infiltration catch-basin adopts common well lid, and the rain penetration well that catchments adopts well to comb, and establishes below well is combed and cuts dirty basket, abandoned stream infiltration catch-basin, the inlet tube and outlet tube below is established and is cut dirty plate, cuts dirty plate and is seated on the dirty basket of cutting of bottom, well chamber, cuts dirty basket liner geotechnique cloth bag.

3. sewer is oozed in rainwater comprehensive utilization according to claim 1, it is characterized in that: the real wall perforated pipe of polyethylene pipe duct, ballast grain sizes 25～30mm, braiding channel width B=D+ (2 * 200), the high H=D+ of canal (2 * 200)+Δ H, Δ H=iL, D-perforated pipe internal diameter mm, L-length of pipe section m, the i-perforated pipe gradient, i=1～2%.

4. sewer is oozed in rainwater comprehensive utilization according to claim 1, it is characterized in that: the real wall perforated pipe of polyethylene pipe duct is laid on the perforated pipe in the macadam, percent opening 1～3%.Two ends link to each other with the infiltration type catch-basin, and in abandoned stream infiltration catch-basin, inlet tube and outlet tube pipe top flushes, and in infiltration catch-basin and catchment infiltration well rainwater, the Guan Dingying of water inlet pipe is lower than at the bottom of the pipe of outlet pipe or flushes.