Novel online scanning ultrasonic gas leak detection system

Abstract

The invention provides a novel online scanning ultrasonic gas leak detection system. The system comprises a data processing controller, a cloud platform and an ultrasonic receiver and a laser rangingmodule mounted on the cloud platform; the data processing controller controls the cloud platform to achieve rotation scanning, and the ultrasonic receiver receives an ultrasonic signal in real time during the rotation of the cloud platform to upload to the data processing controller; the data processing controller determines a leakage source direction according to a maximum ultrasonic signal obtained during the rotation scanning process of the cloud platform, controls the cloud platform to rotate to a leakage source direction, and controls the laser ranging module to perform laser ranging to obtain a leakage source distance; the data processing controller adopts a neural network algorithm to calculate a leakage source pressure value and a leakage source leak diameter according to the frequency data and the amplitude data of the maximum ultrasonic signal and the leakage source distance, and estimates the leakage amount based on the leakage source pressure value and the leakage source leak diameter.

Description

technical field [0001] The invention relates to an ultrasonic gas leak detection system, in particular to a novel on-line scanning ultrasonic gas leak detection system. Background technique [0002] A large number of pressure vessels for storing and transporting compressed gas are used in industry and life, such as cylinders, gas tanks, gas pipelines, etc. Among them, only in the petrochemical industry, my country has thousands of giant gas storage tanks and tens of thousands All kinds of pressure pipes with more than one meter. Due to various reasons such as the manufacturing quality of the equipment and the long maintenance period, leakage accidents often occur. Leakage will not only cause a waste of energy and bring huge economic losses to the society, but once the toxic and harmful gas leaks, it will also pose a threat to the surrounding environment and the safety of people's lives and properties. Therefore, gas leak detection is extremely important. [0003] At presen...

AI Technical Summary

Problems solved by technology

[0003] At present, gas detectors are mainly used in the industry to detect leaks. However, gas detectors are affected by the type of gas, and they need to wait for the leaked gas to accumulate during detection, which takes a long time and cannot be detected in an early stage of gas leaks. The aggregation process is easily affected by factors such as bad weather, wind direction, leakage location, and leakage gas diffusion and dilution, and the measurement accuracy cannot be guaranteed.

The ultrasonic leak detector judges whether there is a leak by analyzing the ultrasonic signal generated when the gas leak occurs, which can effectively avoid the above shortcomings. However, the existing ultrasonic leak detectors cannot locate the leak source and detect the leak Quantity calculation

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