Measurement and detection device for gas leakage

Abstract

The invention relates to the field of gas leakage detection equipment, and discloses a measurement and detection device for gas leakage. The measurement and detection device includes an upper sealingsleeve and a lower sealing sleeve, the shape and size of the upper sealing sleeve are the same as the lower sealing sleeve, the shapes of the upper sealing sleeve and the lower sealing sleeve are in asemi-cylinder shape, semi-circular through holes of the same diameter are formed in the middle portions of the two sides of the upper sealing sleeve and the lower sealing sleeve, and semi-circular tubes located on the periphery of the semi-circular through holes are fixedly installed on the two sides of the inner cavities of the upper sealing sleeve and the lower sealing sleeve. According to themeasurement and detection device for gas leakage, through the structure design of the upper sealing sleeve, the lower sealing sleeve, the semi-circular tubes, air bags, a U-shaped tube and an exhaustmechanism, a flange joint of a pipeline to be inspected is sealed by using the upper sealing sleeve and the lower sealing sleeve, by detecting the displacement differences of liquid in the U-shaped tube in two periods, a slight gas leakage at a flange is detected, so that maintenance personnel can repair in time to avoid gas waste, and the maintenance personnel can measure the amount of gas leakage conveniently.

Description

technical field [0001] The invention relates to the field of gas leakage detection equipment, in particular to a metering and detection device for gas leakage. Background technique [0002] Gas is an indispensable product in people's life, mainly including natural gas, artificial gas and liquefied petroleum gas for residents and industrial enterprises. Gas is generally connected through pipelines, and the pipelines are connected by flanges. There is a sealing rubber ring at the connection. After a long time of use, the sealing rubber ring may be corroded and damaged, and maintenance personnel need to inspect it regularly. [0003] However, the existing gas leak detection equipment will generate eddy currents through the use of leak holes, and there will be parts of the ultrasonic wave band, so that the leak detection system of the ultrasonic detector can sense any kind of gas leakage. During the process of whether there is a gas leak at the pipe flange, when a slight leak o...

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Problems solved by technology

[0003] However, the existing gas leak detection equipment will generate eddy currents through the use of leak holes, and there will be parts of the ultrasonic wave band, so that the leak detection system of the ultrasonic detector can sense any kind of gas leakage. During the process of whether there is a gas leak at the pipe flange, when a slight leak occurs at the pipe flange, the leaked air pressure is small and cannot generate eddy currents, resulting in the existing detection equipment not being able to detect the leak. Some gas leakage detection equipment cannot detect gas leakage, which affects the use of maintenance personnel

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