Rainwater split-flow sewage interception well

Abstract

The invention relates to the field of rainwater filtration, and discloses a rainwater split-flow sewage interception well. The upper part side wall of a well tube is connected with a rainwater inlet pipe and a split-flow pipe; the rainwater inlet pipe and the split-flow pipe have the same elevation; the lower part side wall of the well tube is connected with a water distribution pipe; a split-flow unit is arranged in the well tube; the bottom surface and the periphery of a sewage interception basket are defined by an interception net; a main longitudinal beam is symmetrically arranged at the side wall of the sewage interception basket; the side walls of the two sides of the connecting surface of the main longitudinal beam have the height differences; a first upper ring beam is arranged on the top of the high-position side of the sewage interception basket and is used for supporting; the upper part of the main longitudinal beam is rotationally connected with a turning plate; the diameter of the turning plate is identical to the diameter of the sewage interception basket; a flow guide groove is formed in the turning plate; a groove is formed in the first upper ring beam, and is matched with the inlet end of the flow guide groove; the inlet end of the flow guide groove is tangent with the bottom of the rainwater inlet pipe; and the outlet end of the flow guide groove is tangent with the bottom of the split-flow pipe. The rainwater split-flow sewage interception well has the advantages that the structure is simple; the rainwater split-flow sewage interception well can be dismounted; the use is convenient and fast; and the split-flow function and the sewage interception function are integrated.

Description

technical field [0001] The invention relates to the field of rainwater filtration, in particular to a rainwater waste flow interception well. Background technique [0002] Since the initial rainwater has the function of leaching, scouring and transporting the pollutants collected on the ground, the concentration of pollutants in the rainwater at the beginning of the rainfall is relatively high. Even if the rainwater is collected, recycled and purified, this part of the rainwater will generally be discarded for special treatment. The initial stormwater runoff removes most of the pollutants in the collected stormwater, including fine or dissolved pollutants. [0003] At present, the existing rainwater abandonment devices are roughly divided into several types: abandonment rainwater pools, switchable or small-tube abandonment wells, flap separators, flow-type abandonment devices, permeation abandonment wells, and jumping weir diversion wells. Among them, the flap type separat...

AI Technical Summary

Problems solved by technology

Among them, the flap type separator can be adjusted automatically without manual operation, easy to use, and widely studied. However, most of the current flap type separators have complex structures, high maintenance costs, and high equipment failure rates.

Chinese patent CN202359610U "Self-weight initial rainwater runoff abandonment device" discloses a sump with a flap, wherein the flap acts as a baffle for the drainage channel. When the amount of rainwater is small, the flap is in the initial state. Rainwater is directly discarded from the drainage pipe. When the amount of rainwater is large, the flap is turned down to close the drainage channel, and the rainwater is accumulated for recycling. When the rainfall is not enough, the flap closes the drainage channel. If the rainwater accumulation is not enough When the outlet is discharged, the rainwater will accumulate in the sump, and the initial rainwater of the next rainfall cannot be normally discarded, which is inconvenient to use

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