CN205313948U

CN205313948U - Collection utilizes step of rainwater

Info

Publication number: CN205313948U
Application number: CN201521101671.3U
Authority: CN
Inventors: 高彦波; 王婉清; 翟鹏辉; 陈伟; 郭宏凯
Original assignee: BEIJING DONGFANG LIHE LANDSCAPE DESIGN CO LTD
Current assignee: BEIJING DONGFANG LIHE LANDSCAPE DESIGN CO LTD
Priority date: 2015-12-25
Filing date: 2015-12-25
Publication date: 2016-06-15
Anticipated expiration: 2025-12-25

Abstract

The utility model relates to a collection utilizes step of rainwater, the step includes the surface course that permeates water, articulamentum, first purification layer that top -down set gradually, holds the water layer, the second purifies layer, water storage cavity, basic unit to water storage cavity's top is linked together in the top of going up water storage cavity in the one -level step and the next stage step. The utility model discloses gravity drop between make full use of step and the step purifies, collects, utilizes and store the sub -fraction rainwater and in the step, both satisfied afforestation water needs the rainwater, can keep the step moist at the weather of drying again, alleviates urban heat island effect.

Description

The step of a kind of Collection utilization rainwater

Technical field

The utility model relates to a kind of step, particularly relates to the step of a kind of Collection utilization rainwater.

Background technology

Along with the development in city, more and more surface buildingses and various hardening are mated formation and are covered, havoc natural water circulation, make the earth's surface easily produce ponding and form the runoff of peak value on the one hand, increase pressure of flood after entering river course, produce hidden danger; On the other hand, in today of water resources growing tension, the rainwater entering river course is along inflow downstream, river course, it does not have well effectively utilizes, causes the waste of water resources.

The measure that rainwater utilization develops simultaneously as increasing income and throttle is the important measures alleviating or solving above-mentioned water problems. But in recent years, the phenomenon of urban water-body water quality deterioration happens occasionally, in rainfall process a large amount of pollutent with rainwash drip washing, wash away that to enter water body be the one of the main reasons polluted, therefore when being utilized by rainwater it is noted that the purifying problem of rainwater.

China has carried out many research and practices for rainwater utilization, and achieves certain effect, but does not effectively utilize in rainwater treatment for the step being seen everywhere in life. During the rainy day, being generally all arranged on square or road both sides due to water port, what generally arrange on step is little, causes rainwater can gather on step, People's Bank of China causes certain puzzlement.

Practical novel content

The purpose of this utility model be propose a kind of can purifying rainwater and can the step of Collection utilization rainwater, make step can meet the demand of greening water, step can be kept moistening at the weather of drying again, moreover it is possible to alleviating urban heat island effect.

For achieving the above object, the utility model provides the step of a kind of Collection utilization rainwater, described step comprise arrange successively from top to bottom permeable surface layer, articulamentum, the first purifying layer, hold water layer, the 2nd purifying layer, storage cavity, basic unit, and in upper one-level step, the top of storage cavity is connected with the top of storage cavity in next stage step.

Preferably, the voidage of described permeable surface layer is 10%～25%, and thickness is 2～4cm.

Preferably, the thickness of described articulamentum is 0.8～1.2cm, and permeability rate is more than or equal to 2.0 × 10^-2cm/s。

Preferably, the thickness of described first purifying layer is 2～4cm.

Preferably, described in hold water layer and lay by the graded broken stone of particle diameter 1～2cm, thickness is 2～4cm, and porosity is 15%～25%.

Preferably, the thickness of described 2nd purifying layer is 2～3cm.

Preferably, described storage cavity comprises outer wall, the first cement water-stop sheet of being horizontally installed in described storage cavity and the 2nd cement water-stop sheet being longitudinally arranged in described storage cavity, and the top of described first cement water-stop sheet is provided with diversion trench.

Preferably, the height of described storage cavity is 6～10cm; The groove depth of described diversion trench is 1～2cm, and groove width is 3～5cm.

Preferably, described in upper one-level step, diversion trench is connected with storage cavity in next stage step by the cavity between the first cement water-stop sheet and outer wall.

Based on technique scheme, the utility model has the advantages that:

The utility model is for current rainy day step easily long-pending water problem, practical novel a kind of purify and the ledge structure of Collection utilization rainwater, make full use of the gravity-head between step and step, rainwater purified, collects, utilize and store sub-fraction rainwater in step, both met greening water to need, step can be kept moistening at the weather of drying again, alleviating urban heat island effect.

Accompanying drawing explanation

Accompanying drawing described herein is used to provide to of the present utility model it is further understood that the part of formation the application, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model. In the accompanying drawings:

Fig. 1 is the ledge structure schematic diagram of Collection utilization rainwater;

Fig. 2 is the structural representation of storage cavity;

Wherein, 1～permeable surface layer; 2～articulamentum; 3～the first purifying layers; 4～hold water layer; 5～two purifying layer; 6～storage cavity; 7～basic unit; 8～outer wall; 9～the first cement water-stop sheets; 10～two cement water-stop sheet; 11～diversion trench.

Embodiment

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

The utility model provides the step of a kind of Collection utilization rainwater, as shown in Figure 1, illustrated therein is a kind of preferred implementation of the present utility model. The step of Collection utilization rainwater of the present utility model comprise arrange successively from top to bottom permeable surface layer 1, articulamentum 2, first purifying layer 3, hold water layer 4, the 2nd purifying layer 5, storage cavity 6, basic unit 7, and in upper one-level step, the top of storage cavity 6 is connected with the top of storage cavity 6 in next stage step.

The voidage of permeable surface layer 1 of the present utility model is 10%～25%, and thickness is 2～4cm. Described permeable surface layer 1 is laid by one or more in pervious asphalt, pervious concrete, permeable brick, permeable gravel, be preferably pervious asphalt, pervious concrete, permeable brick, permeable gravel are no less than the combination of 2 kinds, and the described permeable surface layer 1 width wide 1～3cm of each layer relatively below. Mainly acting as by the rainwater rapid osmotic on road surface to underground of described permeable surface layer 1, and complete the primary filter to rainwater, avoid some macrobead things to enter underground;

Preferably, described articulamentum 2 is that the aggregate of 0.1～0.3cm and binding agent mix by particle diameter, and described aggregate is coarse sand and/or slag, and described binding agent can be inorganic, organic or the two binding agent mixed mutually. And the thickness of described articulamentum 2 is 0.8～1.2cm, and permeability rate is more than or equal to 2.0 × 10^-2Cm/s.Mainly acting as of described articulamentum 2 connects permeable surface layer 1 and the first purifying layer 3.

The thickness of described first purifying layer 3 is 2～4cm, is made up of resin, haydite, aerobic microbiological, and wherein resin is the full porous resin of aperture at 100～1000nm, and haydite is the porous ceramic grain of particle diameter at 2～2.5cm. It mainly act as: described first purifying layer 3 apart from ground nearlyer ventilation property better, when rain penetration is got off, microorganism can breed in a large number, and on the resin being attached to porous and haydite, utilize microorganism to rain water pollutant such as the removal effect of COD, TN, TP and ammonia nitrogen, rainwater can be carried out cleaning action rapidly and efficiently

As shown in Figure 1, described having of first purifying layer 3 holds water layer 4, described in hold water layer 4 and lay by the graded broken stone of particle diameter 1～2cm, thickness is 2～4cm, and porosity is 15%～25%. Water layer 4 is held by arranging, utilize its material void surface can adhere to and keep portion of water, after becoming a fine day, slow evaporation can be raised along with temperature, reduce the other vesicular structure of surface temperature and can adsorb the TP in rainwater, make it form the compound precipitations such as insoluble calcium, iron to get off, play the dual function of purification with evaporation.

Preferably, described hold water layer 4 have the 2nd purifying layer 5, the thickness of described 2nd purifying layer 5 is 2～3cm, it is made up of resin, haydite, aerobic microbiological and anaerobion, wherein resin is the full porous resin of aperture at 100～1000nm, and haydite is the porous ceramic grain of particle diameter at 2～2.5cm. Effect principle and first purifying layer 3 of described 2nd purifying layer 5 are roughly the same, but owing to the 2nd purifying layer 5 is far away apart from ground, form certain anaerobic environment, the pollutent in the rainwater held in water layer under slowly and ooze is purified further by anaerobion, the mainly TN in rainwater, strengthens decontamination effect improving.

As shown in Figure 2, described storage cavity 6 comprises outer wall 8, be horizontally installed in described storage cavity 6 the first cement water-stop sheet 9 and the 2nd cement water-stop sheet 10 being longitudinally arranged in described storage cavity 6, the top of described first cement water-stop sheet 9 is provided with diversion trench 11. In the utility model, " transverse direction " refers to and is orthogonal to the direction along step, and " longitudinal direction " refers to the direction along step. Preferably, described in upper one-level step, diversion trench 11 is connected with storage cavity 6 in next stage step by the cavity between the first cement water-stop sheet 9 and outer wall 8. And the height of described storage cavity 6 is 6～10cm; The groove depth of described diversion trench 11 is 1～2cm, and groove width is 3～5cm.

The rainwater that upper strata has purified can be stored by described storage cavity 6 of the present utility model, after the rainwater height stored exceedes the lower edge of described diversion trench 11, to fall into next stage step due to gravitational difference, until the step of bottommost, its current direction A is as shown in Figure 1. First cement water-stop sheet 9 and the 2nd cement water-stop sheet 10 can ensure all to store part rainwater in every grade of step. When running into arid weather, the water in storage cavity 6 can upwards evaporate, and improves region miniclimate, alleviating urban heat island effect. And unnecessary rainwater is downward step by step, until all described storage cavity 6 have filled up rainwater all, ensureing the effect of this step collection and purification storm-water system, unnecessary rainwater can connect the pouring that greening pipe network carries out greenery patches as greening water, saving water resource. Store rainwater in storage cavity 6 in addition, it is also possible to reduce runoff amount of rainfall, outside reducing region, arrange rainwater.

Described basic unit 7 builds basic structure for step, can adopt usual manner and carry out Material selec-tion and laying according to practical situation.

The implementation method of the step of Collection utilization rainwater of the present utility model can be constructed with reference to following steps:

A. preparation of construction: removal treatment place, does good material, instrument preparation;

B. according to design requirements unwrapping wire;

C. step base layer construction, ensures step base fixed;

D. the structure of storage cavity is carried out according to ledge structure;

E., after storage cavity has built, each layer laying is carried out according to laminate structure;

F. clear up scene, maintenance and come into operation.

Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although being described in detail by the utility model with reference to better embodiment, those of ordinary skill in the field are it is understood that still can modify to embodiment of the present utility model or part technology feature carries out equivalent replacement; And do not depart from the spirit of technical solutions of the utility model, in the middle of its technical scheme scope that all should be encompassed in the utility model request protection.

Claims

1. the step of a Collection utilization rainwater, it is characterized in that: described step comprises permeable surface layer (1), articulamentum (2), the first purifying layer (3) arranged successively, hold water layer (4), the 2nd purifying layer (5), storage cavity (6), basic unit (7) from top to bottom, and in upper one-level step, the top of storage cavity (6) is connected with the top of storage cavity (6) in next stage step.

2. step according to claim 1, it is characterised in that: the voidage of described permeable surface layer (1) is 10%～25%, and thickness is 2～4cm.

3. step according to claim 1, it is characterised in that: the thickness of described articulamentum (2) is 0.8～1.2cm, and permeability rate is more than or equal to 2.0 × 10^-2cm/s。

4. step according to claim 1, it is characterised in that: the thickness of described first purifying layer (3) is 2～4cm.

5. step according to claim 1, it is characterised in that: described in hold water layer (4) and lay by the graded broken stone of particle diameter 1～2cm, thickness is 2～4cm, and porosity is 15%～25%.

6. step according to claim 1, it is characterised in that: the thickness of described 2nd purifying layer (5) is 2～3cm.

7. step according to claim 1, it is characterized in that: described storage cavity (6) comprises outer wall (8), the first cement water-stop sheet (9) of being horizontally installed in described storage cavity (6) and the 2nd cement water-stop sheet (10) being longitudinally arranged in described storage cavity (6), and the top of described first cement water-stop sheet (9) is provided with diversion trench (11).

8. step according to claim 7, it is characterised in that: the height of described storage cavity (6) is 6～10cm; The groove depth of described diversion trench (11) is 1～2cm, and groove width is 3～5cm.

9. step according to claim 7, it is characterised in that: diversion trench (11) described in upper one-level step is connected with storage cavity (6) in next stage step by the cavity between the first cement water-stop sheet (9) and outer wall (8).