A rain and sewage recycling system based on sponge city

Abstract

The invention discloses a rain sewage circulatory system based on a spongy city. The system comprises a rain sewage collection tank, a rain sewage treating tank connected with the rain sewage collection tank through a first valve in sequence, a cavity connected with the rain sewage treating tank through a small water pump, a second valve and a flow sensor in sequence, and a primary water tank arranged on the roof of the city; an elastic balloon is arranged inside the cavity, and a mouth of the elastic balloon penetrates through the concrete cavity to be connected with a tap water pipe network through a third valve and connected with a user a low water head through a fourth valve; the portion, between the second valve and the flow sensor, of a connecting pipeline of the rain sewage treating tank and the cavity is provided with a branch pipeline controlled by a fifth valve to be led to the primary water tank of the roof, wherein the flow sensor is used for monitoring the water yield of the cavity and the elastic balloon, the small water pump is used for helping primary water inside the rain sewage treating tank to be drained into the cavity. The cockloft of a building is used for storing water, pressure of a water storage system during waterlogging can be relieved, a user can effectively utilize the stored water, and city water supply pressure is relieved.

Description

technical field [0001] The invention belongs to the technical field of sponge city design, and in particular relates to a rain and sewage circulation system based on a sponge city. Background technique [0002] At present, Chinese cities have entered a period of concentrated outbreak of "urban diseases". Factors such as the rapid expansion of urban population, lack of predictability in planning, and the limited carrying capacity of urban infrastructure have led to a series of problems such as traffic congestion, disordered order, inefficient operations, and poor anti-risk capabilities, which restrict the development of cities. On the one hand, cities are facing serious threats of waterlogging. On the other hand, China is a country with relatively poor water resources. The pollution of water environment is becoming more and more serious. With the proposal of the concept of sponge city, it is urgent to coordinate urban development and rainwater control, and effectively prote...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies in the above-mentioned prior art, the present invention provides a sponge city-based rain sewage system that can overcome the limited drainage capacity of urban drainage pipe networks and the lack of urban water resources, and at the same time can treat sewage on site and greatly reduce the amount of engineering. circulatory system

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