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Track traffic regional tunnel leakage detection device and method

A technology of interval tunnel and detection device, which is applied in the direction of measuring the acceleration and deceleration rate of fluid, using liquid/vacuum degree for liquid tightness measurement, etc. To achieve the effect of reducing the occurrence rate and reducing operational failures

Inactive Publication Date: 2008-11-26
上海轨道交通设备发展有限公司
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Problems solved by technology

However, because the interval tunnels are generally long, the cost of point-by-point direct detection is high, and it is not practical
At present, there is a lack of actual detection methods. We only rely on the way of dispatching personnel to detect abnormal water leakage, which relies heavily on human judgment. If it is discovered in the late stage, it will have a serious impact on the safety of the entire rail transit line.

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  • Track traffic regional tunnel leakage detection device and method
  • Track traffic regional tunnel leakage detection device and method
  • Track traffic regional tunnel leakage detection device and method

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with accompanying drawing.

[0030] see figure 1 and figure 2 , the figure shows a detection device for water leakage in a rail transit section tunnel according to the present invention. The detection device is used to check the cumulative displacement Q t and the preset empirical displacement threshold Q st Compare to determine whether there is abnormal water leakage in the interval tunnel, which includes power transmitter 1, acquisition device 2 and central processing unit 3 connected in sequence, wherein:

[0031] The power transmitter 1 is used to convert the input voltage and input current of the drainage pump 4 into an active power signal, that is, a low-voltage analog signal, and output it to the acquisition device 2. The power signal is a voltage or current signal. The power transmitter 1 and The drainage pumps 4 are connected by several contacts. In this embodiment, the power transmitter 1...

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Abstract

The invention provides a detection device of the water leakage between tunnels of track traffic intervals and a method thereof, comprising a power transducer, a collection device and a central processing unit which are sequentially connected. The detection method of the invention includes the following steps: firstly, respectively collecting the starting stop signals and values of active power of drainage pumps of collection intervals; secondly, making timing calculation of daily cumulative water displacement Qt; finally, on one hand, storing the data into a database and providing basis for users to correct the values of the preset threshold values of experienced water displacement Qst, and on the other hand, judging whether or not the situation of abnormal water leakage exists, which means making timing comparison judgments between the daily cumulative water displacement Qt and the preset threshold values of experienced water displacement Qst; if Qt is bigger than Qst, the water is abnormally leaked and then the alarm information is displayed. The device and the method can detect whether or not the situation of abnormal water leakage exists between the tunnels of the track traffic intervals as early as possible, which greatly improves the security of track traffic operation and reduces a great deal of manual labor.

Description

technical field [0001] The invention relates to a detection device and method, in particular to a detection device and method for water leakage in tunnels in rail transit sections. technical background [0002] The firmness and reliability of the tunnel structure is crucial to the safe operation of the subway running through the city's underground. Whether there is abnormal water leakage in the tunnel is an important indicator for judging whether the tunnel structure is firm, especially for tunnels that cross large rivers and rivers, the consequences of abnormal water leakage in the tunnel may be disastrous. How to detect abnormal water leakage in the early stage and prevent accidents before they happen is an urgent problem that the operation and maintenance department needs to solve. However, since the interval tunnels are generally long, the cost of point-by-point direct detection is high, and it is not practical. At present, there is a lack of actual detection methods. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26
Inventor 韩玉雄吴坚陈赤峰杨正
Owner 上海轨道交通设备发展有限公司