Wireless valve leakage detecting system based on acoustic sensor

Abstract

The invention relates to the technical field of pipeline valve detection equipment, in particular to a wireless valve leakage detecting system based on an acoustic sensor. During detection, the acoustic sensor transmits a collected acoustic leakage signal to a Fourier converter through a signal processor and an A / D converter, the fast Fourier converter performs fast Fourier conversion on the acoustic leakage signal, a corresponding frequency spectrogram is drawn, an analyzer is used to compare the frequency spectrogram with a pre-stored frequency spectrogram when valve leakage does not occur so as to judge whether valve leakage occurs or not, the judging result is transmitted to a controller, the controller transmits the judging result to a wireless receiving module through a wireless transmission module, and the wireless receiving module transmits the received judging result to a monitoring terminal. During multi-valve simultaneous detection, each valve leakage detecting device transmits the corresponding judging result to the monitoring terminal through the wireless transmission module, and a user can perform unified and real-time monitoring through the monitoring terminal.

Description

technical field [0001] The invention relates to the technical field of pipeline valve detection equipment, in particular to a wireless valve leakage detection system based on an acoustic sensor. Background technique [0002] In the fluid pipeline system, the valve is a common mechanical product. Its main function is to isolate the equipment and the pipeline system, prevent backflow, adjust the pressure and flow, so the importance of valve safety is self-evident. In the pipeline system, valves are an indispensable part of the device. There are many types and huge quantities. Valve leakage accidents often occur, and most of the leakage is invisible, sometimes causing catastrophic accidents. Therefore, in the actual production process, timely and accurate detection of valve leakage is of great significance. [0003] Nowadays, hand-held valve leakage devices are generally used to detect whether the valves are leaking. However, since there are multiple valves installed on the pi...

AI Technical Summary

Problems solved by technology

[0003] Nowadays, hand-held valve leakage devices are generally used to detect whether the valves are leaking. However, since there are multiple valves installed on the pipeline, it is undoubtedly time-consuming and labor-intensive for one person to hold the valve leakage device to detect different valves one by one.

However, if multiple people test together, although the detection efficiency can be improved, since each valve leakage device is independent of each other, it is difficult for the user to know the detection results of each valve leakage device at the same time, and it is impossible to conduct a comprehensive inspection of each valve leakage detection device. Unified real-time monitoring

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