Study on On-line Monitoring of Valves leakage

In the actual operation of the valve, leakage often occurs at the filling box, but lack of effective monitoring means. According to the actual demand, the leakage of valve packing is studied experimentally, the bubble detection scheme is designed, the single bubble volume calibration experiment is carried out, and the relationship between the leakage gas quantity and the bubble number is established. An on-line monitoring system for valve leakage is developed and designed. The system uses ultrasonic bubble sensor to detect bubble generation and obtain leakage information in real time.