Rainwater ecological purification, collection and utilization system suitable for low greening rate

Abstract

The invention relates to a rainwater ecological purification, collection and utilization system suitable for a low greening rate. A roof rainwater collecting unit comprises a collecting vertical pipe, a pressure discharging pipe and an energy storage pressure tee joint; the collecting vertical pipe communicates with the pressure discharging pipe; the pressure discharging pipe is horizontally laid; the collecting vertical pipe is vertically laid; an outlet of the collecting vertical pipe is connected with the pressure discharging pipe in a sealed mode and is not connected with the atmosphere; roof rainwater potential energy is utilized for pushing rainwater in the horizontally laid pressure discharging pipe, so that the discharged rainwater has pressure, roof rainwater collected by the collecting vertical pipe has certain potential energy, the burial depth of the tail end of the pressure discharging pipe is reduced, and the burial depth cost of the pressure discharging pipe is further saved; and due to the simple structure and the high reliability, the popularization is easy.

Description

technical field [0001] The invention relates to the field of urban rainwater collection and utilization, in particular to a rainwater ecological purification, collection and utilization system suitable for low green area ratio. Background technique [0002] With the rapid development of the economy and the continuous growth of the population, the speed of urbanization continues to accelerate. On the one hand, the demand for urban water is increasing. On the other hand, the corresponding global warming and more frequent extreme weather make cities Water shortages, floods, and ecological environment have been severely damaged. As a result, the role of rainwater circulation is becoming increasingly prominent in urban construction. As a precious fresh water resource, rainwater is less polluted. After simple treatment, it can be used for urban greening, irrigation, car washing and other water sources. Replenish groundwater. Therefore, the rational use of rainwater resources is ...

AI Technical Summary

Problems solved by technology

Chinese patent "CN105839755A" discloses a system for collecting and reusing urban rainwater. This invention relates to an impact-resistant rainwater ecological utilization system for green communities. It is composed of ditches, landscape water bodies, pumps, water distribution pipes and ground water supply plugs; this method can effectively collect and utilize rainwater, save water resources and provide certain greening, but it has complex structures, high comprehensive costs, and is not conducive to practical promotion and application.

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