An initial rainwater abandonment system of a rain-sewage confluence pipe and its application method

Abstract

The invention relates to an initial rainwater abandoning system of a rainwater and sewage confluence pipe. The initial rainwater abandoning system comprises a transfer adjustment pool, initial rainwater tanks and a shutoff valve, wherein a rainwater and sewage confluence inlet pipe, a later rainwater discharge pipe and an initial rainwater tank transfer pipe are communicated with the transfer adjustment pool, and the later rainwater discharge pipe is connected with an urban rainwater pipe network; the initial rainwater tanks include a first-stage initial rainwater tank and a second-stage initial rainwater tank which is communicated with the first-stage initial rainwater tank through a communicating pipe, one side of the first-stage initial rainwater tank is communicated with the transfer adjustment pool through the initial rainwater tank transfer pipe, a sewage outlet is formed in the other side of the first-stage initial rainwater tank, and the sewage outlet is connected with a sewage pipe network; the shutoff valve is a buoy valve, the buoy valve comprises a valve plate and a buoy which adapts to the valve plate, the valve plate is arranged at the sewage outlet, the buoy is arranged in the second-stage initial rainwater tank, and the valve plate of the buoy valve can be driven to fall or rise by the buoy along with the rising or falling of the liquid level in the second-stage initial rainwater tank, so that the sewage outlet is correspondingly controlled to open and close. The initial rainwater abandoning system has the advantage of reasonable and simple structural design, the purpose of automatically abandoning initial rainwater can be achieved, the whole system does not need to be manually controlled, and manpower resources are saved.

Description

technical field [0001] The invention relates to a rainwater treatment system, in particular to an initial rainwater abandonment system of a rainwater confluence pipe. Background technique [0002] The initial rainwater abandonment is mainly used in the rainwater collection and utilization system. During the initial rainfall, the first 2-5mm of rainwater is generally seriously polluted and the flow rate is relatively small. In the combined rainwater and sewage pipe network, the initial rainwater needs to be discarded. The existing technology has the following problems: the grasp of the rainwater discarded flow requires manual control; the structure is complex, which is not conducive to installation and use, and it cannot be used on the existing treatment pool. Retrofitting or retrofitting requires a lot of investment; the initial rainwater abandonment is not complete or the abandonment is too much. Contents of the invention [0003] The technical problem to be solved by t...

AI Technical Summary

Problems solved by technology

In the combined rainwater and sewage pipe network, the initial rainwater needs to be discarded. The existing technology has the following problems: the grasp of the rainwater discarded flow requires manual control; the structure is complex, which is not conducive to installation and use, and it cannot be used on the existing treatment pool. Retrofitting or retrofitting requires a lot of investment; initial rainwater abandonment is not complete or too much

Images