Rainwater collecting, retreating and utilizing system

Abstract

The invention relates to a rainwater collecting, retreating and utilizing system. The rainwater collecting, retreating and utilizing system comprises a rainwater collecting device and a rainwater retreating and utilizing device, wherein the rainwater collecting device collects rainwater into a first water collecting tank (6), a water inlet pipe (B3) of the rainwater retreating and utilizing deviceis connected to the first water collecting tank (6), and the rainwater collected by the first water collecting tank (6) enters the rainwater retreating and utilizing device through the water inlet pipe (B3). According to the rainwater collecting, retreating and utilizing system, the rainwater collecting device can collect the rainwater collected on a roof in a layered mode, a user on each floor can use the rainwater conveniently, and meanwhile, a sweeping mechanism is additionally arranged on the top of a drainage pipe so that drainage difficulty caused by the fact that tree leaves and wasteon the roof block the drainage pipe can be prevented; and the rainwater retreating and utilizing device can automatically add chemicals while adding water, and can automatically stop adding the chemicals after completing water adding so that the rainwater purification quality can be effectively improved, and the labor intensity is reduced.

Description

technical field [0001] The invention relates to the technical field of sponge cities, in particular to a system for collecting, reprocessing and utilizing rainwater. Background technique [0002] Sponge city refers to a city that can be like a sponge and has good "elasticity" in adapting to environmental changes and responding to natural disasters. Utilization, the construction of sponge cities should follow the principles of ecological priority, combine natural methods with artificial measures, and ensure the safety of urban drainage and waterlogging, maximize the accumulation, infiltration and purification of rainwater in urban areas, and promote rainwater resources. utilization and ecological environment protection. There are currently some rainwater harvesting facilities. [0003] After searching, it is found that the invention of patent No. CN201610619621.7 provides a rainwater collection and treatment system. The system includes a water diversion system, a rainwater ...

AI Technical Summary

Problems solved by technology

[0009] However, problem 1: the existing buildings collect water on the roof through the parapet, and then drain it to the ground through the drain holes and drain pipes opened on the side or to the ground-mounted cisterns. Although this method can reduce rainwater However, if users on higher floors need to use water for watering flowers or other purposes, they need to re-add pipes to pump them up from the bottom reservoir, which increases the cost

[0010] Problem 2: In the process of rainwater collection and treatment, it is often necessary to use rainwater purification equipment. At present, the general rainwater purification equipment often cannot realize the automatic dosing function during purification. Adding different proportions of medicines, it is difficult to master this proportion when adding medicines manually, resulting in a decrease in the quality of purification

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