Novel anti-backflow intercepting well control method

A control method and interception well technology, applied to waterway systems, drainage structures, water supply devices, etc., can solve the problems of inability to prevent backflow and simple functions, and achieve the effect of simple and effective control methods, sensitive responses, and fast and safe adjustment processes

Active Publication Date: 2016-08-24
WUHAN SHENGYU DRAINING SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the interception wells in the prior art have simple functions. When the liquid level of the natural water body is higher than the liquid level in the intercep

Method used

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  • Novel anti-backflow intercepting well control method
  • Novel anti-backflow intercepting well control method
  • Novel anti-backflow intercepting well control method

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Embodiment Construction

[0037] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0038] Such as Figure 1-2As shown, the intercepting well of the present invention comprises a well body 1, and the well body 1 is a concrete structure. The front end of the body 1 is provided with a sewage pipeline 4, and the mouth of the sewage pipeline 4 is provided with a flow control gate 5, and a bottom-opening weir gate 7 is provided between the sewage pipeline 4 and the natural water body 3, and the bottom-opening weir gate 7 is provided in this embodiment. It is arranged at the rear end of the well body 1, and can also be arranged at the place where the natural water body 3 communicates with the well body 1. An inclined floating baffle 6 is provided between the flow control gate 5 and the bottom opening weir gate 7 in the well body 1 , and the floating baffle 6 is used to guide the scum in the well into the sewage pipe 4 . ...

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Abstract

The invention discloses a novel anti-backflow intercepting well control method which comprises the steps of: carrying out initial setting: monitoring a liquid level height H in the intercepting well and on the upstream of a downward opening type weir gate in real time, monitoring a natural water liquid level height H' in real time, setting a maximum anti-backflow height of the downward opening type weir gate as Hmax, setting a top height of the downward opening type weir gate in an intercepting state as H1, and setting a safety distance of a natural water liquid level and the top height of the downward opening type weir gate as a; a, when H' is greater than H and H' is greater than H1-a, controlling the top height of the downward opening type weir gate as H'+a, when the natural water liquid level is risen, ascending the downward opening type weir gate until the top height is Hmax, and when the natural water liquid level drops, descending the downward opening type weir gate until the top height is H1; b, when H' is smaller than H, controlling the intercepting well to execute a drainage procedure. The control method disclosed by the invention is simple and effective, not only can prevent backflow, but also can safely drain and draw off floodwater, regulates and controls the intercepting height of the downward opening type weir gate in real time, is sensitive in reaction, and is rapid and safe in regulating process.

Description

technical field [0001] The invention relates to a drainage system, in particular to a novel control method for an anti-backflow interception well. Background technique [0002] In the combined pipeline system in urban drainage projects in our country, interception wells have existed for a long time. The interception well is used in the rain and sewage combined system to separate the rain and sewage. In the dry season, because there is only sewage in the pipe, the interception well can intercept the sewage and flow it to the sewage pipe to the sewage treatment plant. The gates are opened to discharge to natural bodies of water. However, the interception wells in the prior art have simple functions. When the liquid level of the natural water body is higher than the liquid level in the interception well, it is impossible to avoid the backflow of water from the natural water body into the interception well. Functions such as safe drainage and flood discharge. Contents of th...

Claims

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Application Information

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IPC IPC(8): E03F5/042
CPCE03F5/042E03F2201/10
Inventor 李习洪周超
Owner WUHAN SHENGYU DRAINING SYST
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