Rainwater recovery system for residential district

Abstract

The invention relates to a rainwater recovery system for a residential district. The rainwater recovery system comprises a water-permeable ground, a water collecting tank and a water treatment tank, wherein the water-permeable ground comprises a water-permeable brick layer, a filter layer, a first crushed stone layer, a coarse sand layer, an activated carbon layer and a second crushed stone layerwhich are sequentially arranged from top to bottom; a drainage pipe and a water guiding plate are arranged at the bottom of the second crushed stone layer; the drainage pipe is arranged at the middleof the second crushed stone layer and extends in the front-rear direction; the water guiding plate is V-shaped; the drainage pipe is positioned at the middle of the water guiding plate; the water collecting tank is used for collecting rainwater penetrating through the water-permeable ground; a water inlet of the water collecting tank is connected to the drainage pipe; the top of the water treatment tank is provided with a water treatment partition plate hanging over the bottom of the water treatment tank; the water treatment partition plate divides the water treatment tank into a water treatment part and a water outlet part; the bottom of the water treatment part communicates with the bottom of the water outlet part; the top of the water treatment part is connected to a water outlet of thewater collecting tank; and the top of the water outlet part communicates with an external landscape pond. Compared with the prior art, the rainwater recovery system for the residential district not only clears the road after the rainwater penetrates into the ground so as to significantly improve the absorptive capability to the rainwater, but also improves the resource utilization rate of the rainwater.

Description

technical field [0001] The invention relates to the field of landscape design, in particular to a rainwater recovery system for residential quarters. Background technique [0002] At present, the water permeability of most garden roads is poor, and the ability to absorb and discharge rainwater is very limited. When the rainfall exceeds the absorption capacity of the ground, if there is a lack of underground drainage facilities, the excessive rainwater will not be discharged in time, which will directly cause the garden road to be flooded by rainwater, seriously hindering people's walking. At the same time, the existing garden roads are relatively simple, and the rainwater cannot be fully utilized. Therefore, when there is sudden heavy rain or continuous rainfall, most of the garden roads are often paralyzed due to accumulated water, which brings a lot of inconvenience to people. . [0003] In order to solve the above problems, people put forward the concept of sponge city,...

AI Technical Summary

Problems solved by technology

These technologies have improved the water permeability of the ground to a certain extent, but because grass-planting bricks and permeable bricks are often rammed plain soil foundations with poor water permeability, or even concrete foundations with poor water permeability, their ability to absorb rainwater is limited. In addition, the rainwater absorbed by the permeable bricks is difficult to penetrate into the ground, and the effective use of rainwater cannot be realized

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