Classified intercepting rainwater opening device with pretreatment function

Abstract

The invention belongs to the field of supporting facilities of municipal drainage rainwater openings, and particularly relates to a classified intercepting rainwater opening device with a pretreatmentfunction. The classified intercepting rainwater opening device includes a well cavity; the well cavity is internally provided with a transition chamber, a divided-flow intercepting chamber and a water storage chamber, wherein the transition chamber, the divided-flow intercepting chamber and the water storage chamber are arranged in sequence from top to bottom in a stacked mode, and the divided-flow intercepting chamber is divided into a divided-flow chamber and an intercepting chamber which are arranged side by side through an outer sleeve plate; the transition chamber communicates with the divided-flow chamber; the divided-flow chamber communicates with the water storage chamber through a water filling square hole and a water inlet hole, a drainage outlet is formed in the bottom of the side wall of the water storage chamber, and a telescopic cloth bag sealing mechanism is connected between the water filling square hole and the drainage outlet in the water storage chamber; the divided-flow chamber and the intercepting chamber communicate through a first orifice in the outer sleeve plate, the divided-flow chamber and the water storage chamber communicate through the water inlet hole, and an elastic buoyancy sealing mechanism is arranged at the first orifice and the water inlet hole; and the intercepting chamber is internally provided with a buoyancy telescopic inclined pipe processing mechanism. Through the classified intercepting rainwater opening device, the road rainwater in different rainfall duration stages can be automatically classified and intercepted, and the corresponding pretreatment can be carried out.

Description

technical field [0001] The invention relates to supporting facilities for municipal drainage storm water outlets, in particular to a classified and intercepting storm water outlet device with pretreatment function. Background technique [0002] During the process of rainwater falling from the air to the ground until it flows into the rainwater collection facilities on the road, it will carry dust in the air, muck on the ground, etc. Therefore, the rainwater on the road generally contains more pollutants, and its impact on the water quality of the receiving water body increasingly received attention. During a rainfall process, as the rainfall continues to accumulate, the accumulated rainfall also increases accordingly. Due to the continuous washing and carrying effect of rainwater, pollutants in the air and on the ground continue to decrease. Therefore, the content of pollutants in road surface rainwater corresponding to different rainfall duration stages (corresponding to d...

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Problems solved by technology

[0004] (1) No targeted diversion of rainwater on the road surface: because the water quality of the rainwater with different rainfall durations is not the same after flowing through the road surface and entering the gullies, but the traditional gully device does not divert the road rainwater according to different rainfall durations. As a result, the downstream rainwater treatment facilities cannot classify and treat road rainwater with different pollution levels in a targeted manner, which in turn affects the treatment effect of the terminal treatment facilities, resulting in substandard effluent water quality and polluting downstream receiving water bodies;

[0005] (2) No targeted pretreatment of pavement rainwater: pavement rainwater contains a large amount of suspended matter and pollutants. Transporting to downstream pipelines and facilities will not only increase the sediment in the pipeline and affect the drainage capacity of the pipeline, but also increase the processing load of downstream rainwater treatment facilities, affecting its treatment effect and resulting in substandard effluent water quality, polluting the downstream receiving water body ;

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