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특허 상세정보

Methods for detection of leaks in pressurized pipeline systems

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01M-073/299   
미국특허분류(USC) 73/405 ; R ; 73/40 ; 73/492
출원번호 US-0575085 (1990-08-30)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 38  인용 특허 : 0
초록

A method of determining the presence and temperature compensated volumetric flow rate of leaks in fluid pressurized pipelines. The pipeline is maintained at a first pressure and the fluid volume change per unit time is calculated. The pressure is then maintained at a second different pressure and a second fluid volume change per unit time is calculated. The system is then maintained at the first pressure while a third fluid volume change per unit time is calculated. The first and third rates are combined with the second rate to obtain a temperature compe...

대표
청구항

A method for measuring the change in the temperature-compensated flow rate produced by a leak while compensating for the thermally induced volume changes in a pressurized pipeline system containing a liquid product, comprising: (a) pressurizing said pipeline system to a first pressure and measuring those changes in the volume of product in said pipeline that are required to maintain approximately constant pressure over a first measurement period; (b) changing the pressure in said pipeline to a second pressure and measuring those changes in the volume of ...

이 특허를 인용한 특허 피인용횟수: 38

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  3. Olsen, Åge A.; Jacobsen, Jostein; Halås Skar, Tore Magne; Norli, Petter; Bergh, Ashild; Negård, Nils-Otto; Låg, Steinar. Detection of ingress of water in an intermediate layer using acoustic resonance technology. USP2011098011227.
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  5. Fleury, Jr., Leo W.; Dintakurti, Ganapathi Deva Varma; Richarz, Werner Guenther; Williams, James O.; Yusuf, Shabbir; Hiller, Timothy Scott Edward; Mercer, Steven James; Janhunen, Stefan Erik. Fire hydrant leak detector. USP2016039291520.
  6. Hart, Robert P.. Fueling system vapor recovery and containment performance monitor and method of operation thereof. USP2017099759631.
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