Intercepting well and control method of interception flow of intercepting well

Abstract

The invention relates to an intercepting well and a control method of the interception flow of the intercepting well. A mixed flow pipe in the intercepting well penetrates through a well body integrally, the bottom of the middle section of the mixed flow pipe in the well is cut off to provide a channel for mixed flow sewage to enter an intercepting main pipe, and a Hough section sleeves the mixedflow pipe in the well. The control method of the intercepting flow comprises the steps that the design intercepting flow of a single intercepting well is calculated according to the sewage quantity calculation and the total intercepting multiple of a area served by each intercepting well after the total intercepting multiple is determined according to the requirements required for overflow pollution control and the capacity of an urban sewage treatment system, and the axial position of the Hough section of the intercepting well is initially set; and after the intercepting well is put into use,the position of the Hough section is adjusted axially according to the actual intercepting situation to meet the intercepting requirements. According to the intercepting well and the control method of the interception flow of the intercepting well, the magnitude of the actual intercepting flow can be adjusted by adjusting the relative position of the Hough section, so that the design error is effectively corrected, and the intercepting well is more in line with objective requirements; and a flap valve is installed at an outlet of the mixed flow pipe, the mixed flow water exceeding the interception capacity can be discharged to a surface water body, and the surface water body is prevented from flowing backwards.

Description

technical field [0001] The invention relates to an underflow interception well with controllable interception flow and a method for controlling the interception flow, belonging to the technical field of urban municipal drainage facilities. Background technique [0002] The interception well is an important structure in the municipal drainage system, which can collect direct sewage in dry weather and reduce overflow pollution in rainy days. In dry weather, the sewage from the outlet along the river will be intercepted and flowed into the sewage treatment plant; in rainy days, part of the rain-sewage mixed flow water will be intercepted and flowed into the sewage treatment plant, and the rain-sewage mixed flow water exceeding the interception capacity will be discharged into the surface water body. [0003] Traditional interception wells include slot type, weir type, and slot-weir combination type, which have the following disadvantages: 1. The design interception volume is qu...

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Problems solved by technology

[0005] The present invention aims at the problems existing in the prior art that the interception flow is difficult to control, the interception water quality concentration is low, waterlogging and water blocking, river water backflow, complex structure, etc., and provides an interception well and its interception flow control method, which can effectively improve the sewage interception efficiency, Adapt to interception multiples, smooth and smooth discharge, reverse flow and reverse stop, no mechanical equipment, high reliability, low investment, low operation and maintenance costs, suitable for the status quo and development requirements of China's urban infrastructure

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