Fragmentation closure regulation and storage discharging system

Abstract

The invention relates to the field of urban water treatment systems, in particular to a fragmentation closure regulation and storage discharging system. A main sewage pipe and discharge branch pipes are arranged in a water collecting area, and the discharge branch pipes are communicated with the main sewage pipe. The water collecting area is divided into a plurality of districts according to the grid shape, wherein the area of each district is 0.2-4 square kilometers; and the discharge branch pipes and catchpits are arranged in the districts. Water inlets of the catchpits are communicated with the outlet ends of the discharge branch pipes. An initial rainwater outlet is communicated with the main sewage pipe, and a later period rainwater outlet is communicated with a regulation and storage pond. The purified water outlet end of the regulation and storage pond is communicated with natural water, and the sewage outlet end is communicated with the main sewage pipe through a sewage pump. The fragmentation closure regulation and storage discharging system is simple in structure, an urban water treatment system is divided into the independent districts, the problem of delay in the initial rainwater long-distance conveying process in the prior art is solved through the independent catchpits on the districts, and the fragmentation closure regulation and storage discharging system has very high popularization values.

Description

technical field [0001] The invention relates to the field of urban water treatment systems, in particular to a sliced ​​interception, regulation, storage and discharge system. Background technique [0002] For diversion rainwater pipelines, at present, each outlet does not have any interception measures, and is directly discharged into natural water bodies, so that the sewage in sunny days and the first rain in rainy days are all discharged into natural water bodies, causing serious pollution to natural water bodies . [0003] For combined pipelines, in many areas, a main sewage pipe is discharged into the sewage treatment plant through the interception well at the end. In rainy days, the rainwater and domestic sewage are discharged to the natural water body through the interception well. In actual operation, in order to save space and engineering cost, the water collection area responsible for the combined discharge system is generally set as large as possible, and then a ...

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Problems solved by technology

But for area M, a large amount of later clean rainwater in area M is also discharged into the urban sewage treatment system during the time when the storage tank discharges the initial rainwater in area N. Such discharge will cause great damage to the urban sewage system dealing with stress

In addition, the pipe network in M ​​area and N area is generally connected during actual operation. Due to the difference in distance and the retention effect on the road, the initial rainwater in N area may seriously pollute the later clean rainwater in M ​​area, which will also lead to rainwater discharge. The irrationality of the situation

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