The subsea pipeline ball passing indicator is a key device for accurately indicating pipeline ball passing,which can be used in conjunction with better pipeline cleaning operations to ensure the safe operation of subsea pipelines.Aiming at the problems of poor sensitivity,complex installation,high maintenance and replacement costs and risks of traditional ball passing indicators,as well as expensive prices and long supply cycles of similar foreign products,a non-contact submarine pipeline ball passing indicator and signal acquisition,recognition,and analysis system based on ultrasonic detection technology was developed.Using statistical algorithms,a dual threshold structure with high threshold(HT)and low threshold(LT)was set,combined with the duration of over threshold(DT),to accurately determine the signal passing through the ball.
关键词
过球指示器/非接触式/超声/清管器
Key words
Steam jet pump/Water jet pump/Low temperature refrigeration/Refrigerator
维普
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