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Method and system for detecting and locating leakage based on infrared imagery technique

An infrared imaging and leak detection technology, which is applied in fluid tightness testing, machine/structural component testing, measuring devices, etc., can solve problems such as inability to diagnose online and low efficiency

Inactive Publication Date: 2008-08-27
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, methods 1 and 2 are limited by the detection principle, and have disadvantages such as low efficiency and inability to diagnose online.
Method 3 can only be used when the leakage hole is large and the gas flowing through is turbulent, and it is easily disturbed by noise

Method used

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  • Method and system for detecting and locating leakage based on infrared imagery technique
  • Method and system for detecting and locating leakage based on infrared imagery technique
  • Method and system for detecting and locating leakage based on infrared imagery technique

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Embodiment Construction

[0057] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0058] Such as figure 1 , figure 2 As shown, a leak detection and positioning method based on infrared imaging technology of the present invention firstly sets the test pressure, and uses a cooling device to cool a certain pressure of gas as the test medium, and the target temperature is preset in the cooling device. The control device drives each valve to inflate the measured object to complete the timing control, the sensor device detects the system status, and uses the infrared imaging device to collect the infrared image of the measured object, and the infrared image is transmitted to the control device and undergoes a series of image processing The operation is used to analyze, calculate the leakage amount and locate the leakage point, and the detection result is displayed on the display device. After the test is completed, the control device ...

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Abstract

The invention relates to a leak detection positioning method and a system based on the infrared imaging technology, which belongs to the detection technical field. The leak detection positioning system provided by the invention comprises a control device, an infrared imaging device, a cooling device, a sensing device, an aeration device and a display device. Gas with certain pressure is cooled down by the cooling device to serve as a test medium, the control device drives valves to aerate the tested object and completes the sequential control, the sensing device checks the status of the system, the infrared imaging device collects the infrared images of the tested object, the infrared images are transmitted to the control device and undergo a series of image processing operations for leak analysis, leak amount calculation and leak positioning, and test results are displayed on the display device. The leak detection positioning method and the system based on the infrared imaging technology has the advantages of high test accuracy, high efficiency of leak positioning, high anti-interference capacity and non-contact automatic measurement.

Description

technical field [0001] The invention relates to a leak detection and positioning method and its equipment, in particular to a leak detection and positioning method and system that uses low-temperature pressure gas as a leak detection medium and uses an infrared imaging device to image a measured object, and belongs to the technical field of detection. Background technique [0002] With the rapid development of science and technology in today's society, the market demand for products presents the characteristics of diversity and complexity, and the competition is becoming more and more fierce. For objects with container properties, the quality of their sealing performance directly determines the quality of the product. If a non-conforming product whose leakage exceeds the allowable range is used, not only its function will be affected, but in severe cases, it may cause serious consequences such as fire, explosion, and harmful gas overflow. With the improvement of leakage det...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/00
Inventor 葛楠彭光正
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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