Rainwater storage system for avoiding urban inland inundation, haze and heat island effects

Abstract

The invention discloses a rainwater storage system for avoiding urban inland inundation, haze and heat island effects. A community is used as a unit, the rainwater storage system comprises an open-air greening system, a plurality of ecological filter pools, one or two landscape impounding reservoirs and ecological grass groove systems, wherein the open-air greening system is built on a roof of a building, the ecological filter pools are arranged on the periphery of the building, and the ecological grass groove systems are arranged near a community park, square and road. The rainwater storage system has the advantages that due to the fact that the greening system is arranged on the roof of the building, and a rainwater collection tank, the ecological filter pool, the ecological grass groove systems and the like are arranged on the ground, rainwater mainly infiltrates inwards and compensates for underwater, and the year-round rainfall runoff coefficient of a catchment area in the community is controlled within 0.12 to 0.15 and reaches the national park green space rainfall runoff coefficient design standard. The temperature difference is controlled within 1 DEG C to 3 DEG C, the urban community inland inundation, haze and heat island effects are thoroughly avoided, the landscape function is achieved, and the rainwater garden system is formed.

Description

technical field [0001] The invention relates to a rainwater collection system, in particular to a rainwater storage system for solving urban waterlogging, smog and heat island effect. Background technique [0002] For a long time, my country's urban development has adopted the construction method of spreading the pie. Whether it is residential development or the construction of public infrastructure such as roads, squares, and underground pipe networks, most of them are hardened with reinforced concrete without restraint, completely changing the original surface. The ecology of the city has increased the runoff of rainwater, leading to the loss of rainwater resources, the serious shrinkage of urban wetlands, the lack of effective replenishment of groundwater, the disorder of urban ecosystems, and the occurrence of geological disasters from time to time. [0003] The excessive hardening of the city has exacerbated the urban waterlogging, smog and heat island effect. Once it ra...

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Problems solved by technology

[0002] For a long time, my country's urban development has adopted the construction method of spreading the pie. Whether it is residential development or the construction of public infrastructure such as roads, squares, and underground pipe networks, most of them are hardened with reinforced concrete without restraint, completely changing the original surface. The ecology of the city has increased the runoff of rainwater, leading to the loss of rainwater resources, the serious shrinkage of urban wetlands, the lack of effective replenishment of groundwater, the disorder of urban ecosystems, and frequent occurrence of geological disasters

[0003] The excessive hardening of the city has exacerbated the urban waterlogging, smog and heat island effect. Once it rains for a long time, if the sewers cannot drain the rainwater in a timely and smooth manner, serious urban waterlogging will occur; The traditional monsoon channel is blocked, the urban climate environment is steamed, and the hardened surface prevents harmful particles in the air from adhering, the degree of smog intensifies, and the temperature difference between the city center and the suburbs also suddenly increases from 1-3 degrees to 8-13 degrees. Spend

[0004] In order to alleviate the problem of urban water environment, urban construction and water affairs departments have done a lot of work at present, but they are all aimed at beautifying the city, building green spaces in the area, and adding reservoirs around the water pumps. The reservoirs are generally constructed of reinforced concrete and cannot Infiltration, less consideration of ecological functions such as rainwater absorption, urban waterlogging, smog and heat island effect still cannot be completely solved

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