Rainwater recycling system for sponge city

Abstract

The invention relates to a rainwater recycling system for a sponge city. The rainwater recycling system comprises a roadbed layer, a greening layer positioned on one side of the roadbed layer, a drainage tank and a water storage tank arranged between the roadbed layer and the greening layer, and a rainwater grate covering the top of the drainage tank, a discarding box and a treatment box which are in communication with each other are arranged at the bottom of the drainage box from high to low in the height direction, a discarding pipe is arranged on the side wall of the discarding box, the bottom wall of the discarding box is in communication with the treatment box through a drainage pipe, electric control valves are arranged in the discarding pipe and the drainage pipe, a primary filtering assembly is arranged in the discarding box, a secondary filtering assembly is arranged in the treatment box, and the side wall of the treatment box is in communication with the water storage box through a connecting pipe. The device has the effects of filtering and discharging initial rainwater, so that pollutants in the subsequently collected rainwater are less, the rainwater is convenient to recycle, and water resources are saved.

Description

technical field [0001] This application relates to the field of rainwater collection and utilization, in particular to a rainwater reuse system for sponge cities. Background technique [0002] The international lingua franca of sponge city is "low-impact development of rainwater system components", that is, absorbing, storing, infiltrating and purifying water when it rains, releasing the stored water and utilizing it when needed. [0003] The Chinese patent with the notification number CN210712423U discloses a pedestrian road for rainwater utilization in sponge cities, including a roadbed on which a plurality of roadbed cavities with an upper opening structure are formed, and a plurality of roadbed cavities are distributed along the length direction of the roadbed , a plurality of seepage bricks are laid in the cavity of the roadbed. The seepage bricks are vertically provided with seepage holes, and horizontally provided with drainage grooves. The length direction of the dra...

AI Technical Summary

Problems solved by technology

[0005] In order to improve the problem that the initial rainwater collected in the water storage tank will affect the effect of plant maintenance in the later stage, this application provides a rainwater reuse system for sponge cities

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