Rainwater collection and reutilization device for greening lawn

Abstract

The invention discloses a rainwater collection and reutilization device for a greening lawn. The rainwater collection and reutilization device comprises a box body; the end face of the box body communicates with a water storage tank, and a stone layer, an activated carbon layer, a gauze layer and an ultrafiltration membrane are sequentially mounted in the box body from top to bottom; the lower end of the water storage tank communicates with a water feeding pipe, and a one-way valve is mounted on the water feeding pipe; the lower end of the water feeding pipe communicates with a buffering box body, and one end of the buffering box body communicates with a water discharging pipe; the tail end of the water discharging pipe communicates with a piston pipe, and an L-shaped bent pipe is connected to the piston pipe, penetrates through the box body, and is provided with a pressure increasing valve; and a spray head is mounted at the end, away from the box body, of the L-shaped bent pipe. The rainwater collection and reutilization device has the advantages that the functions of seepage, filtration, storage, drainage and the like are achieved, the rainwater runoff speed is decreased, rainwater downward seepage and filtration are effectively improved, the utilization rate of rainwater is increased, circulation of natural rainfall, surface water and underground water is coordinated, environment microclimates can further be improved, the municipal drainage pressure is reduced, and the engineering construction cost is saved.

Description

technical field [0001] The invention relates to the technical field of municipal engineering, in particular to a rainwater collection and reuse device for greening flats. Background technique [0002] Since the 1970s, the concept of stormwater control in international cities has changed. Rainwater storage, slow discharge, and utilization have become important contents of rainwater management. From the perspective of water quantity and water quality management, implement "ecological drainage" through engineering and non-engineering measures to promote precipitation into the natural water cycle process as much as possible, thereby reducing the amount of rainwater entering the urban drainage system and promoting rainwater drainage. resource utilization, reduce urban flood disasters, reduce urban sewage treatment loads and construction costs, and maintain the ecological balance of urban water cycles. Traditional municipal drainage facilities are mainly hard canals, and rainwater...

AI Technical Summary

Problems solved by technology

[0002] Since the 1970s, the concept of stormwater control in international cities has changed, and rainwater storage, slow discharge, and utilization have become important contents of rainwater management. From the perspective of water quantity and water quality management, implement "ecological drainage" through engineering and non-engineering measures to promote precipitation into the natural water cycle process as much as possible, thereby reducing the amount of rainwater entering the urban drainage system and promoting rainwater drainage. resource utilization, reduce urban flood disasters, reduce urban sewage treatment loads and construction costs, and maintain the ecological balance of urban water cycles. Traditional municipal drainage facilities are mainly hard canals, and rainwater is directly discharged to drainpipes to reduce rainwater infiltration , the rainwater is not used reasonably, resulting in a waste of resources

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