CN101606480B

CN101606480B - Rainwater permeation collection and irrigation saving system

Info

Publication number: CN101606480B
Application number: CN200910157413XA
Authority: CN
Inventors: 张书函; 陈建刚; 丁跃元; 赵飞; 高振宇; 王理许; 龚应安; 孔刚; 宝哲; 苏东彬; 蒋蕾蕾
Original assignee: BEIJING INST OF WATER CONSERVANCY SCIENCE
Current assignee: BEIJING INST OF WATER CONSERVANCY SCIENCE
Priority date: 2009-07-28
Filing date: 2009-07-28
Publication date: 2010-12-08
Anticipated expiration: 2029-07-28
Also published as: CN101606480A

Abstract

The invention discloses a rainwater permeation collection and irrigation saving system, wherein rainwater collection pipes are paved under a permeable ground; water storage modules are arranged between border trees or tree arrays; the rainwater collection pipes are connected with the top parts of the water storage modules to collect the rainwater permeated under the permeable ground and induct the rainwater into the water storage modules for storage; the outsides of the rainwater collection pipes are coated by permeable geotextile to prevent blocking; besides the top surfaces of the water storage modules are coated by a layer of permeable geotextile, and the other surfaces all adopt the double-cloth one-film coating form; the opened pores at the bottom parts of the water storage modules are connected with irrigation aqueducts; the distance between the upper opening positions of the opened pores and the bottom surfaces of the water storage modules is of 5-10mm so as to lead the bottom parts of the water storage modules to form deposit spaces, thus avoiding deposits from entering the irrigation aqueducts and a sprinkler and causing blockage; the other ends of the irrigation aqueducts are connected with the sprinkler; the sprinkler surrounds the root parts of trees. The rainwater permeation collection and irrigation saving system directly irrigates water from the root parts of the trees, thus reducing the water evaporation and permeation loss, improving the irrigation efficiency and saving water resources.

Description

A kind of rainwater permeation collection and irrigation saving system

One, technical field

The present invention relates to a kind of urban path tree or tree meteoric water permeation collection and irrigation saving system.

Two, background technology

Ground in existing city pavement street tree or the square between the tree battle array generally adopts waterproof or weak permeable sclerosis to mat formation, and it is underground that rainfall can not be infiltrated, and is difficult to the soil moisture in supply street tree or tree battle array root district.Simultaneously, the traditional hole irrigation mode of the many employings of irrigation method of urban path tree or tree battle array, this irrigation program causes a large amount of waste of water resource, simultaneously, because the vertical seepage loss of root region soil is bigger, the efficient of pouring water is low, be unfavorable for arboreal growth, also increased administrative burden, consume human and material resources.Therefore, under the environment of current shortage of water resources, need to propose a kind of rainwater that makes full use of, particularly the paving ground rainwater between trees, the tree root district is implemented the new method of effectively irrigating.

Three, summary of the invention

The present invention proposes a kind of can the collection between utilization tree battle array or street tree and oozes the rainwater permeation collection and irrigation saving technology that rainwater is irrigated near trees on the spot under the permeable paving ground.

Technical scheme of the present invention is, a kind of rainwater permeation collection and irrigation saving system is provided, comprise the rainwater collecting pipe, the retaining module, irrigate aqueduct and irrigator, wherein, the rainwater collecting pipe is laid in the pervious surface bottom, between street tree or tree battle array, arrange described retaining module, described rainwater collecting pipe is connected with described retaining module top, save oozing under the pervious surface to introduce in the retaining module after rainwater is collected, rainwater collecting pipe outer wrap geotextiles prevents to stop up, described retaining module is except that end face adopts one deck geotextiles parcel, and all the other each faces all adopt the parcel form of two cloth, one film; The perforate of described retaining module bottom with irrigate aqueduct and link to each other, the position of upper of described perforate is apart from the bottom surface 5～10mm of retaining module, makes the retaining module bottom form sediment space and avoids sediment to enter the irrigation aqueduct and irrigator results in blockage; Irrigate aqueduct one end and be connected with the described perforate of retaining module bottom, the other end is connected with described irrigator, and irrigator is looped around trees ' root.

Preferably, described rainwater collecting pipe is selected PVC perforate floral tube, full-transparency type drainpipe, draining sheet material or french drain for use.

Preferably, described irrigator is selected infiltrating irrigation pipe, drip irrigation pipe, irrigate band or water dropper for use.

Preferably, described retaining module is the plastic material structure, and porosity is greater than 95%, and single volume is 0.2m ³

Compared with prior art, the technical program has following advantage:

1, effectively utilizes rainwater resource, if every corresponding single game rain retaining volume of tree is 0.2m ³, then be equivalent to 10～20 days water requirement of one tree;

2, can directly pour water from trees ' root, reduce the evaporation and the seepage loss of moisture, improve the efficient of pouring water, the conserve water resource;

3, need not extra human and material resources and energy resource consumption after the equipment installation, save cost, simplify operational management.

Four, description of drawings

Fig. 1 rainwater permeation collection and irrigation saving system floor map.

Fig. 2 rainwater permeation collection and irrigation saving system vertical section schematic diagram.

Among the figure: 1 is pervious surface, and 2 are the tree pond, and 3 is the rainwater collecting pipe, and 4 are the retaining module, and 5 for irrigating aqueduct, and 6 is irrigator, and 7 is permeable geotextiles, and 8 is geomembrane.

Five, embodiment

The concrete enforcement of the present invention comprises rainwater collecting pipe 3, retaining module 4, irrigates aqueduct 5, irrigator 6, permeable geotextiles 7, geomembrane 8.Change between original tree battle array or the waterproof sclerosis between street tree is mated formation and is pervious surface.Rainwater collecting pipe 3 is the drainage pipe of porous, concrete form can be PVC perforate floral tube, full-transparency type drainpipe, draining sheet material, french drain etc., the permeable geotextiles of rainwater collecting pipe 3 outer wrap prevents that sand grains from entering and results in blockage, rainwater collecting pipe 3 is laid on pervious surface 1 bed course bottom, position, basic unit subgrade soil upper strata, be convenient to collect the rainwater that infiltrates in the bed course, rainwater collecting pipe 3 can adopt tiling or light grade aspect retaining module 4, one end inserts retaining module 4 tops, rainwater collecting pipe 3 is forbidden adverse slope, and water influences collecting effect in avoiding managing.Retaining module 4 is a macroporosity plastic material structure, and porosity is greater than 95%, and single volume is 0.2m ³Retaining module 4 each face all wrap up with geotextile, avoid that fine particle enters or stops up in bed course and the soil, except that end face adopts the permeable geotextiles parcel of one deck, all the other each faces all adopt the form of two cloth, one film, make the independent water storage space of retaining module 4 inner formation, retaining module 4 bottom opening link to each other with irrigation aqueduct 5, the position of upper of described perforate is apart from the bottom surface 5～10mm of retaining module 4, makes retaining module 4 bottoms form that sediment space is avoided sediment to enter irrigating aqueduct 5 and irrigator 6 results in blockage.Irrigating aqueduct 5 is tubule footpath common PVC or PE pipe, tiles to street tree tree pond 2, links to each other with irrigator 6.Advantages such as irrigator 6 can select infiltrating irrigation pipe, irrigate band, water dropper etc. multi-form, and it is specifically definite that the depth of burying is looked different seeds, stops up no matter which kind of form all should have to resist, and is ageing-resistant just can be used.The quantity of every corresponding retaining module 4 of tree is decided on seeds water consumption, catchment area and Rainfall Characteristics.

Natural rainfall is collected by rainwater collecting pipe 3 and to enter retaining module 4 after oozing under the pervious surface, and the irrigators 6 on irrigating aqueduct 5 under action of gravity of the rainwater in the retaining module 4 enter in the trees root region soil, reach irrigation purposes.Because head is less, the rainwater in the retaining module 4 can slowly infiltrate soil in a long time, keeps soil moisture content, and reduces the deep percolation loss, improves the efficient of pouring water.The porous media of pervious surface 1 plays certain filtration, purification effect to rainfall, makes the rainwater water quality of collecting get a promotion, and satisfies the irrigation water requirement.

The street tree that this technical scheme both had been suitable on the pavement of city is irrigated, and the tree battle array, the tree basin irrigation that also are suitable for large tracts of land bicycle ground such as city square, pedestrian space, park are irrigate.

Claims

1. rainwater permeation collection and irrigation saving system, comprise rainwater collecting pipe (3), retaining module (4), irrigate aqueduct (5) and irrigator (6), wherein, rainwater collecting pipe (3) is laid in pervious surface (1) bottom, between street tree or tree battle array, arrange described retaining module (4), described rainwater collecting pipe (3) is connected with described retaining module (4) top, save oozing under the pervious surface (1) to introduce in the retaining module (4) after rainwater is collected, the permeable geotextiles of rainwater collecting pipe (3) outer wrap prevents to stop up, described retaining module (4) is except that end face adopts the permeable geotextiles parcel of one deck, and all the other each faces all adopt the parcel form of two cloth, one film; Described retaining module (4) bottom opening links to each other with irrigation aqueduct (5), the position of upper of described perforate is apart from the bottom surface 5～10mm of retaining module (4), makes retaining module (4) bottom form that sediment space is avoided sediment to enter irrigating aqueduct (5) and irrigator (6) results in blockage; Irrigate aqueduct (5) one ends and be connected with retaining module (4) the described perforate in bottom, the other end is connected with described irrigator (6), and irrigator (6) is looped around trees ' root; Described rainwater collecting pipe (3) is selected PVC perforate floral tube, full-transparency type drainpipe, draining sheet material or french drain for use; Described irrigator (6) is selected infiltrating irrigation pipe, drip irrigation pipe, irrigate band or water dropper for use; Described retaining module (4) is the plastic material structure, and porosity is greater than 95%, and single volume is 0.2m ³