CN106013389A - Three-dimensional percolation self-purification system for rainwater self-purification returning seepage well - Google Patents

Abstract

The invention relates to a three-dimensional percolation self-purification system for a rainwater self-purification returning seepage well and belongs to environment-friendly equipment. A horizontal water-purifying device and a longitudinal water-purifying device are successively arranged in a well pipe from top to bottom; a space is arranged between the horizontal water-purifying device and the longitudinal water-purifying device; the longitudinal water-purifying device is composed of gravel stratum, coarse sand, fine sand, coarse sand, gravel stratum or ceramsite bedding layers which are successively put in from bottom to top; the horizontal water-purifying device comprises a rebar drum, an upper cover plate, a sealing base plate, a PVC pipe with a through hole or a steel pipe and ceramsite gravel beds; the grain sizes of the ceramsite gravel beds are gradually reduced from inside to outside; each ceramsite gravel bed is 10-30cm thick; and the porosity of the pipe wall of the PVC pipe or steel pipe is 13-25%. The three-dimensional percolation self-purification system for the rainwater self-purification returning seepage well has the advantages of novel, reasonable and simple structure, excellent use property, low cost and no groundwater pollution.

Description

Rainwater self-purification bleeds back well three-dimensional diafiltration self-cleaning system

Technical field

The invention belongs to environmental protection equipment, relates generally to a kind of for rainwater self-purification Bleed back well three-dimensional diafiltration self-cleaning system.

Background technology

Sponge urban construction is the important content of China's Ecological Civilization Construction, how to increase earth's surface Ooze under water, do not pollute original subsoil water simultaneously and paid attention to.Existing gravel stake and underground Seepage well is to be currently used for increasing the capital equipment of milliosmolarity under surface water.But, there is mouth in the former Footpath is little, in the presence of milliosmolarity is little, Regulation capacity is little, water drainage DeGrain shortcoming；The latter Have that water purifying effect is poor and the contaminated potential collision hazard of subsoil water.

Summary of the invention

The invention is aiming at the problem that above-mentioned prior art exists, a kind of rainwater of design Self-purification bleeds back well three-dimensional diafiltration self-cleaning system, reach to increase under surface water milliosmolarity and Infiltration process makes it purify, be finally stored in underground reservoir, form the mesh of groundwater reservoir 's.

The Basic Design of the invention is: arrange longitudinal direction at well casing tube chamber inner bottom side Purifier, in well casing tube chamber, is positioned at longitudinal purifier position above and can take out up and down Carry the equipped horizontal purifier of movement, with longitudinal water purification below described horizontal purifier Between above device, position is provided with space；Described longitudinal purifier is by the most successively Gravel cobble, coarse sand, fine sand, coarse sand, gravel boulder bed or the haydite matting layer inserted are constituted； Described horizontal purifier includes reinforcing bar cylinder, upper cover plate, closure base plate, pvc pipe or steel Pipe and haydite patch gravel bed, paste particle diameter on pvc pipe or outer wall of steel pipe face the most successively The haydite patch gravel bed that size is gradually reduced, minimum grain size a size of 0.1mm, pastes gravel at haydite In Ceng, the layer thickness of every kind of grain size is 10-30cm, outside outermost haydite patch gravel bed Upper containing is equipped with reinforcing bar cylinder, at described pvc pipe or steel pipe, haydite patch gravel bed and reinforcing bar cylinder Be fixedly mounted with closure base plate on body bottom, with the upper cover plate of central through hole be fitted in pvc pipe or On steel pipe and haydite patch gravel bed upper end and affixed with reinforcing bar cylinder, described reinforcing bar cylinder Reinforcing rod top is hook-shaped in bending, is provided with through hole, institute on described pvc pipe or steel pipe tube wall The porosity stating the through hole gross area and pvc pipe or steel pipe tube wall gross area ratio is 13-25%, Described through hole includes horizontal stripe seam through hole or vertical bar seam through hole or circular hole or elliptical aperture, So far constitute rainwater self-purification and bleed back well three-dimensional diafiltration self-cleaning system.

The invention becomes small-sized recharge of ground water skylight, milliosmolarity under increasing surface water While, again water quality is carried out high-quality purification, and has possessed regulation water-holding capacity, tool Have novel structure, rationally, simple, use reliable, permeability and the amount of purifying water is good, make Industry low cost, feature without underground water pollution.

Accompanying drawing explanation

Fig. 1 is that rainwater self-purification bleeds back the signal of well three-dimensional diafiltration self-cleaning system population structure Figure.

Piece number explanation in figure:

1, upper cover plate, 2, well casing, 3, reinforcing bar cylinder, 4, horizontal purifier, 5, PVC Pipe or steel pipe, 6, through hole, 7, haydite patch gravel bed, 8, closure base plate, 9, longitudinal water purification Device, 10, gravel cobble, coarse sand, fine sand, coarse sand, gravel boulder bed or haydite matting layer.

Detailed description of the invention

Below in conjunction with the accompanying drawings the invention embodiment is described in detail.A kind of rainwater Self-purification bleeds back well three-dimensional diafiltration self-cleaning system, sets at well casing 2 tube chamber inner bottom side Put longitudinal purifier 9, in well casing 2 tube chamber, be positioned at longitudinal purifier 9 upper portion The equipped horizontal purifier 4 of movement can be extracted up and down, at described horizontal purifier 4 at Wei Between above lower section and longitudinal purifier 9, position is provided with space；Described longitudinal water purification cartridge Put 9 by the gravel cobble inserted the most successively, coarse sand, fine sand, coarse sand, gravel boulder bed Or haydite matting layer 10 is constituted；Described horizontal purifier 4 includes reinforcing bar cylinder 3, upper cover Plate 1, closure base plate 8, pvc pipe or steel pipe 5 and haydite patch gravel bed 7, at pvc pipe or steel The haydite patch gravel bed 7 that grain size is gradually reduced is pasted the most successively in pipe 5 outside wall surface, Minimum grain size a size of 0.1mm, the layer thickness of every kind of grain size in haydite patch gravel bed 7 For 10-30cm, outermost haydite patch gravel bed 7 is equipped with reinforcing bar cylinder 3 outside upper containing, Described pvc pipe or steel pipe 5, haydite patch gravel bed 7 and reinforcing bar cylinder 3 bottom are fixedly mounted with Closure base plate 8, the upper cover plate 1 with central through hole is fitted in pvc pipe or steel pipe 5 and pottery On grain patch gravel bed 7 upper end and affixed with reinforcing bar cylinder 3, the steel of described reinforcing bar cylinder 3 Rib top is hook-shaped in bending, is provided with through hole 6 on described pvc pipe or steel pipe 5 tube wall, Described through hole 6 gross area is 13-with the porosity of pvc pipe or steel pipe 5 tube wall gross area ratio 25%, described through hole 6 include horizontal stripe seam through hole or vertical bar seam through hole or circular hole or Elliptical aperture.Described gravel cobble, coarse sand, fine sand, coarse sand, gravel boulder bed or haydite matting layer Haydite matting layer in 10 is made up of the spherical haydite with micropore, and haydite matting layer Spherical haydite uses grain size the most successively from being gradually reduced greatly, gradually increasing from little Big configuration structure, in haydite matting layer, the particle diameter of minimum spherical haydite is 0.1mm.

During operation, rainwater through hole 6 on pvc pipe or steel pipe 5 sidewall enters haydite patch gravel In layer 7, enter in well casing 2 from reinforcing bar cylinder 3 through horizontal filtration, purification, and enter from top Enter in gravel cobble, coarse sand, fine sand, coarse sand, gravel boulder bed or haydite matting layer 10, complete Longitudinal filtration, purification of above-below direction, flows into underground below longitudinal purifier 9.

Laterally the haydite in purifier 4 is spherical in shape, regular shape and band micropore, thus Ensure that consisting of haydite patch gravel bed 7 there is higher porosity and permeability.Haydite Itself there is acid and alkali resistance, salt and electrochemically resistant corrodible property, therefore can extend haydite patch The service life of gravel bed 7.

The filtering material particle diameters such as gravel cobble in longitudinal purifier 9, coarse sand, fine sand are overall Variation tendency is downward by earth's surface, from large to small, changes from small to big, due to different-grain diameter bar again Under part, piling up voidage and change greatly, between different filter courses, permeability there are differences, and makes Rainwater filters into being seeped into subsoil water through staged, not only define the most artificial enter impregnation To skylight, and connect underground reservoir, form groundwater reservoir.

Claims (2)

1. a rainwater self-purification bleeds back well three-dimensional diafiltration self-cleaning system, it is characterised in that: Longitudinal purifier (9) is set at well casing (2) tube chamber inner bottom side, in well casing (2) In tube chamber, it is positioned at longitudinal purifier (9) position above and can extract the equipped of movement up and down Laterally purifier (4), at described horizontal purifier (4) lower section and longitudinal purifier (9) between top, position is provided with space；Described longitudinal purifier (9) by from down to On gravel cobble, coarse sand, fine sand, coarse sand, gravel boulder bed or the haydite matting layer inserted successively (10) constitute；Described horizontal purifier (4) include reinforcing bar cylinder (3), upper cover plate (1), Closure base plate (8), pvc pipe or steel pipe (5) and haydite patch gravel bed (7), at pvc pipe or The haydite patch gravel that grain size is gradually reduced is pasted the most successively in steel pipe (5) outside wall surface Layer (7), minimum grain size a size of 0.1mm, every kind of particle diameter chi in haydite patch gravel bed (7) Very little thickness is 10-30cm, outermost haydite patch gravel bed (7) outside is contained equipped Reinforcing bar cylinder (3), at described pvc pipe or steel pipe (5), haydite patch gravel bed (7) and reinforcing bar Closure base plate (8) it is fixedly mounted with, with the upper cover plate (1) of central through hole on cylinder (3) bottom It is fitted on pvc pipe or steel pipe (5) and haydite patch gravel bed (7) upper end, and and reinforcing bar Cylinder (3) is affixed, and the reinforcing rod top of described reinforcing bar cylinder (3) is hook-shaped in bending, Described pvc pipe or steel pipe (5) tube wall are provided with through hole (6), the total face of described through hole (6) Long-pending and pvc pipe or steel pipe (5) tube wall gross area ratio porosity is 13-25%, described logical Hole (6) includes horizontal stripe seam through hole or vertical bar seam through hole or circular hole or elliptical aperture.

Rainwater self-purification the most according to claim 1 bleeds back well three-dimensional diafiltration self-cleaning system System, it is characterised in that: described gravel cobble, coarse sand, fine sand, coarse sand, gravel boulder bed or pottery Haydite matting layer in grain matting layer (10) is made up of the spherical haydite with micropore, and The spherical haydite of haydite matting layer use grain size the most successively from being gradually reduced greatly, Again from the little configuration structure being gradually increased, in haydite matting layer, the particle diameter of minimum spherical haydite is 0.1mm。