Novel anti-backflow intercepting well control method

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...

AI Technical Summary

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 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

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