High-efficiency interception well and interception method for urban rainwater runoff

Abstract

The invention provides an urban rainwater runoff high-efficiency intercepting well which comprises a gate and a hoist, wherein the gate can seal an intercepting opening; the hoist is used for opening or closing the gat; a detection runner is arranged in a shaft; an electrical conductivity detection probe is fixed in the detection runner; and an electrical conductivity meter is mounted on the outer surface of an intercepting well cover plate. The electrical conductivity detection probe is used for measuring the electrical conductivity in rainwater runoff in real time; a worker can control the opening or closing of the gate according to the detected electrical conductivity so as to conduct interception; and the high-efficiency intercepting well is simple in structure, can conveniently detect the electrical conductivity in rainwater runoff and can conduct interception according to the electrical conductivity. The invention provides an intercepting method of the high-efficiency intercepting well, which can control the opening or closing of the gate according to the detected electrical conductivity to conduct interception so as to achieve the function that the intercepting well conducts flow distribution according to the instant concentration of rainwater runoff, and enable the intercepting wall to achieve a better operating effect in the whole drainage system.

Description

technical field [0001] The invention relates to the fields of urban rainwater runoff pollution control and rainwater runoff interception, in particular to an efficient urban rainwater runoff interception well and an interception method. Background technique [0002] With the development of urbanization, the proportion of urban non-point source pollution is increasing. At present, the main measures for urban non-point source pollution in my country are to divert rainwater runoff into rainwater plants or sewage plants for treatment through interception, and to discard the other part to nearby water bodies, which has achieved the purpose of reducing urban non-point source pollution. Stormwater runoff consists of two parameters: flow and concentration. [0003] Existing interception wells mainly include a well body and a weir plate. The well body is arranged vertically and is composed of a well bottom plate, a well shaft and an interception well cover plate, and an inner cavit...

AI Technical Summary

Problems solved by technology

The interception method of this interception well only takes the interception volume of rainwater as the interception standard. When the water volume is less than a certain value, all the water enters the interception pipe through the interception port; In the flow pipe, the interception is very rough and unscientific, so that the effect of the interception engineering measures cannot be fully exerted in the entire drainage system, the operation effect is not good, and even the interception volume exceeds the load of the treatment plant.

[0004] At present, there is no interception well that can measure the instantaneous concentration of rainwater runoff, so the water intercepted by the existing interception well is not necessarily the runoff with the largest instantaneous flow rate, nor the part with the highest concentration of pollutants, so that the interception well operates in the entire drainage system the effect is not good

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