SE8401584L - DEVICE FOR PREVENTION OF PRESSURE LEAKAGE - Google Patents

DEVICE FOR PREVENTION OF PRESSURE LEAKAGE

Info

Publication number
SE8401584L
SE8401584L SE8401584A SE8401584A SE8401584L SE 8401584 L SE8401584 L SE 8401584L SE 8401584 A SE8401584 A SE 8401584A SE 8401584 A SE8401584 A SE 8401584A SE 8401584 L SE8401584 L SE 8401584L
Authority
SE
Sweden
Prior art keywords
valve
cut
opening
pressure
signals
Prior art date
Application number
SE8401584A
Other languages
Swedish (sv)
Other versions
SE8401584D0 (en
SE454540B (en
Inventor
Billy Jacquet
Original Assignee
Billy Jacquet
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 Billy Jacquet filed Critical Billy Jacquet
Priority to SE8401584A priority Critical patent/SE454540B/en
Publication of SE8401584D0 publication Critical patent/SE8401584D0/en
Publication of SE8401584L publication Critical patent/SE8401584L/en
Publication of SE454540B publication Critical patent/SE454540B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/02—Preventing, monitoring, or locating loss
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve Device For Special Equipments (AREA)
  • External Artificial Organs (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Bathtubs, Showers, And Their Attachments (AREA)

Abstract

A pressure sensor (3) provides an opening signal when a minimum pressure is not attained and a closure signal when a max. pressure is exceeded beyond the cut-off valve (2). Such signals are passed to a control unit (4) which can either open or close the cut-off valve (4). The control unit (4) incorporates a time delay unit which retards the max. pressure signal for a specific time before it is fed further to the cut-off valve (2). However, it feeds the opening signal undelayed to the cut-off valve (2). The control probes and stores the times between two or more opening signals from the pressure sensor (3), and when it finds repeated occasions with the same time interval, it blocks the passage of opening signals to the cut-off valve. It also has a re-set device which causes the blocking of the opening signals to be removed.
SE8401584A 1984-03-21 1984-03-21 Leakage preventing device for pressure conduits SE454540B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8401584A SE454540B (en) 1984-03-21 1984-03-21 Leakage preventing device for pressure conduits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8401584A SE454540B (en) 1984-03-21 1984-03-21 Leakage preventing device for pressure conduits

Publications (3)

Publication Number Publication Date
SE8401584D0 SE8401584D0 (en) 1984-03-21
SE8401584L true SE8401584L (en) 1985-09-22
SE454540B SE454540B (en) 1988-05-09

Family

ID=20355241

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8401584A SE454540B (en) 1984-03-21 1984-03-21 Leakage preventing device for pressure conduits

Country Status (1)

Country Link
SE (1) SE454540B (en)

Also Published As

Publication number Publication date
SE8401584D0 (en) 1984-03-21
SE454540B (en) 1988-05-09

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