WO2007041111A3 - Leak detector for process valve - Google Patents

Leak detector for process valve Download PDF

Info

Publication number
WO2007041111A3
WO2007041111A3 PCT/US2006/037535 US2006037535W WO2007041111A3 WO 2007041111 A3 WO2007041111 A3 WO 2007041111A3 US 2006037535 W US2006037535 W US 2006037535W WO 2007041111 A3 WO2007041111 A3 WO 2007041111A3
Authority
WO
WIPO (PCT)
Prior art keywords
leak
leak detector
pipe
process valve
valve
Prior art date
Application number
PCT/US2006/037535
Other languages
French (fr)
Other versions
WO2007041111A2 (en
Inventor
Gregory C Brown
Original Assignee
Rosemount Inc
Gregory C Brown
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rosemount Inc, Gregory C Brown filed Critical Rosemount Inc
Priority to JP2008533532A priority Critical patent/JP4896139B2/en
Priority to US12/066,431 priority patent/US7940189B2/en
Priority to CA2623096A priority patent/CA2623096C/en
Priority to EP06815490.5A priority patent/EP1931962B1/en
Priority to CN2006800360373A priority patent/CN101278180B/en
Publication of WO2007041111A2 publication Critical patent/WO2007041111A2/en
Publication of WO2007041111A3 publication Critical patent/WO2007041111A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/24—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
    • G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves

Abstract

A leak detection system (300) is described for detecting a leak through a closed valve disposed between an upstream pipe and a downstream pipe of an industrial process. An insertable plate (302) is coupled to the valve in the pipe in-line with the fluid flow. A sensor (316) couples to the flow and provides a signature output. A leak detector (324) is coupled to the sensor (16) and adapted to detect a leak through the valve based upon the signature output.
PCT/US2006/037535 2005-09-29 2006-09-26 Leak detector for process valve WO2007041111A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2008533532A JP4896139B2 (en) 2005-09-29 2006-09-26 Leak detector for process valve
US12/066,431 US7940189B2 (en) 2005-09-29 2006-09-26 Leak detector for process valve
CA2623096A CA2623096C (en) 2005-09-29 2006-09-26 Accoustic leak detector with insertable plate for use in a process valve
EP06815490.5A EP1931962B1 (en) 2005-09-29 2006-09-26 Leak detector for process valve
CN2006800360373A CN101278180B (en) 2005-09-29 2006-09-26 Leak detector for process valve

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/238,674 2005-09-29
US11/238,674 US20070068225A1 (en) 2005-09-29 2005-09-29 Leak detector for process valve

Publications (2)

Publication Number Publication Date
WO2007041111A2 WO2007041111A2 (en) 2007-04-12
WO2007041111A3 true WO2007041111A3 (en) 2007-06-28

Family

ID=37650007

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/037535 WO2007041111A2 (en) 2005-09-29 2006-09-26 Leak detector for process valve

Country Status (6)

Country Link
US (2) US20070068225A1 (en)
EP (1) EP1931962B1 (en)
JP (1) JP4896139B2 (en)
CN (1) CN101278180B (en)
CA (1) CA2623096C (en)
WO (1) WO2007041111A2 (en)

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EP1931962B1 (en) 2015-04-08
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