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A method for automatic monitoring of cooling water leakage in the valve tower of the flexible DC converter valve

An automatic monitoring and cooling water technology, applied in the direction of detecting the appearance of fluid at the leakage point, using liquid/vacuum degree for liquid tightness measurement, etc., can solve the confusion of work management, the inability of inspectors to enter the valve hall, and the inability to find cooling Water system leakage and other problems to improve detection efficiency

Active Publication Date: 2021-08-31
STATE GRID FUJIAN ELECTRIC POWER CO LTD +1
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Problems solved by technology

[0007] Raw data accumulation problem: In the absence of this system, there is no suitable means to record the detection situation each time the detection is performed, the work management is relatively chaotic, and it is difficult to provide an effective reference for fault judgment;
[0008] When the valve hall is working, inspectors cannot enter the valve hall and cannot find the leakage of the cooling water system

Method used

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  • A method for automatic monitoring of cooling water leakage in the valve tower of the flexible DC converter valve
  • A method for automatic monitoring of cooling water leakage in the valve tower of the flexible DC converter valve
  • A method for automatic monitoring of cooling water leakage in the valve tower of the flexible DC converter valve

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0029] It should be pointed out that the following detailed description is exemplary and is intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0030] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combina...

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Abstract

The invention relates to a method for automatic monitoring of cooling water leakage of valve towers of flexible direct-current converter valves. First, the standard equipment heat map is used as a reference image, and the contours of the cooling water pipe components that need to be analyzed and judged are marked on the reference image; Collect the current infrared thermal image of the equipment as the image to be registered; then match the image to be registered with the reference image to determine the position range of the cooling water pipe components in the image to be registered; finally calculate the registration value of each to-be-registered image in the area to be detected The maximum temperature of the cooling water pipe part area in the image, and the leak position is judged according to the difference of each maximum temperature. The present invention can automatically and timely discover the leakage state of the cooling water system inside the valve hall when inspectors cannot enter the valve hall.

Description

technical field [0001] The invention relates to the technical field of equipment status monitoring system for a valve tower cooling water system of a flexible converter station in a power grid, in particular to a method for automatic monitoring of leakage of cooling water in a valve tower of a flexible DC converter valve. Background technique [0002] The valve cooling system is an important part of the converter station. The hot water flowing out of the converter valve is pressurized by the main circulation pump and sent to the external cooling water cooling tower for cooling. The cooled water passes through the degassing tank and the electric heater in turn. , After the high-level water tank enters the diverter valve again for circulating cooling. Its main function is to exchange the heat generated by the various components on the valve body during operation to the outside of the valve hall through water, so as to ensure that the valve components operate within the normal ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/04
CPCG01M3/04
Inventor 何志甘陈光焰付胜宪范彦琨林石张锦吉陈德兴郑国顺吕小伟黄东方李冠颖林剑平张雯婧李文琦张颜真熊旭洪慧娜康美金黄金魁
Owner STATE GRID FUJIAN ELECTRIC POWER CO LTD
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