CA2252874A1 - Soupape de surete pilote - Google Patents

Soupape de surete pilote Download PDF

Info

Publication number
CA2252874A1
CA2252874A1 CA 2252874 CA2252874A CA2252874A1 CA 2252874 A1 CA2252874 A1 CA 2252874A1 CA 2252874 CA2252874 CA 2252874 CA 2252874 A CA2252874 A CA 2252874A CA 2252874 A1 CA2252874 A1 CA 2252874A1
Authority
CA
Canada
Prior art keywords
fluid
pressure
control fluid
piston
relief valve
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA 2252874
Other languages
English (en)
Inventor
Michael Andrew Theodos
Roger Dale Danzy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dresser Industries Inc
Original Assignee
Individual
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
Priority claimed from US08/642,024 external-priority patent/US5725015A/en
Application filed by Individual filed Critical Individual
Publication of CA2252874A1 publication Critical patent/CA2252874A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/14—Control of fluid pressure with auxiliary non-electric power
    • G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid
    • G05D16/166—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid using pistons within the main valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Safety Valves (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

L'invention concerne un ensemble et un procédé pour commander l'ouverture d'une soupape de sûreté (10) exposée à la pression hydraulique d'un système et contenant un fluide de commande qui commande l'ouverture de la soupape de sûreté (10). L'ensemble comporte une soupape pilote (30) reliée à la soupape de sûreté (10) et apte à réagir à une pression prédéterminée du fluide du système pourpermettre l'écoulement du fluide de commande. Un régulateur (34) reçoit le fluide de commande et agit pour réduire d'une valeur prédéterminée la pression de ce dernier. La soupape de sûreté (10) s'ouvre en réaction à la réduction de la pression du fluide de commande, et la pression du fluide de commande restante module l'ouverture de la soupape de sûreté (10).
CA 2252874 1996-04-29 1997-01-22 Soupape de surete pilote Abandoned CA2252874A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/642,024 1996-04-29
US08/642,024 US5725015A (en) 1996-03-14 1996-04-29 Pilot-operated safety relief valve assembly

Publications (1)

Publication Number Publication Date
CA2252874A1 true CA2252874A1 (fr) 1997-11-06

Family

ID=24574856

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2252874 Abandoned CA2252874A1 (fr) 1996-04-29 1997-01-22 Soupape de surete pilote

Country Status (6)

Country Link
EP (1) EP0898739A4 (fr)
AU (1) AU710544B2 (fr)
CA (1) CA2252874A1 (fr)
EA (1) EA001043B1 (fr)
NZ (1) NZ331537A (fr)
WO (1) WO1997041496A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1132369B (de) * 1956-10-29 1962-06-28 Johannes Petry Gasdruckregler
DE1265467B (de) * 1965-04-05 1968-04-04 Pintsch Bamag Ag Vorgesteuerter Druckregler fuer Hochdruckgas
US3456674A (en) * 1966-05-20 1969-07-22 Fisher Governor Co In-line flow,pilot-operated high-pressure gas regulator
US4355657A (en) * 1978-09-18 1982-10-26 Vapor Corporation Pilot operated relief valve
DE2949922C2 (de) * 1979-12-12 1986-08-21 Mannesmann Rexroth GmbH, 8770 Lohr Vorgesteuertes Druckminderventil
CN1008130B (zh) * 1989-05-19 1990-05-23 刘长年 多功能无静差压力控制阀
US5396923A (en) * 1992-10-28 1995-03-14 Allen; Donald M. Surge relief apparatus and method

Also Published As

Publication number Publication date
EP0898739A4 (fr) 1999-11-17
AU710544B2 (en) 1999-09-23
AU1706297A (en) 1997-11-19
EP0898739A1 (fr) 1999-03-03
WO1997041496A1 (fr) 1997-11-06
EA001043B1 (ru) 2000-08-28
EA199800964A1 (ru) 1999-04-29
NZ331537A (en) 1999-07-29

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Dead