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1. WO1996003180 - DEVICE FOR THE AUTOMATIC CLOSURE OF A SHUT-OFF FITTING

Publication Number WO/1996/003180
Publication Date 08.02.1996
International Application No. PCT/EP1995/002889
International Filing Date 21.07.1995
Chapter 2 Demand Filed 08.02.1996
IPC
A62C 2/04 2006.01
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
CFIRE-FIGHTING
2Fire prevention or containment
04Removing or cutting-off the supply of inflammable material
F16K 17/10 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
17Safety valves; Equalising valves
02opening on surplus pressure on one side; closing on insufficient pressure on one side
04spring-loaded
10with auxiliary valve for fluid operation of the main valve
F16K 17/12 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
17Safety valves; Equalising valves
02opening on surplus pressure on one side; closing on insufficient pressure on one side
12weight-loaded
F16K 17/38 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
17Safety valves; Equalising valves
36actuated in consequence of extraneous circumstances, e.g. shock, change of position
38of excessive temperature
CPC
A62C 2/04
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
CFIRE-FIGHTING
2Fire prevention or containment
04Removing or cutting-off the supply of inflammable material
F16K 17/10
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
17Safety valves; Equalising valves, ; e.g. pressure relief valves
02opening on surplus pressure on one side; closing on insufficient pressure on one side
04spring-loaded
10with auxiliary valve for fluid operation of the main valve
F16K 17/12
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
17Safety valves; Equalising valves, ; e.g. pressure relief valves
02opening on surplus pressure on one side; closing on insufficient pressure on one side
12weight-loaded
F16K 17/383
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
17Safety valves; Equalising valves, ; e.g. pressure relief valves
36actuated in consequence of extraneous circumstances, e.g. shock, change of position
38of excessive temperature
383the valve comprising fusible, softening or meltable elements, e.g. used as link, blocking element, seal, closure plug
Applicants
  • RUHRGAS AKTIENGESELLSCHAFT [DE/DE]; Huttropstrasse 60 D-45138 Essen, DE (AllExceptUS)
  • LEMBSER, Gerhard [DE/DE]; DE (UsOnly)
Inventors
  • LEMBSER, Gerhard; DE
Priority Data
P 44 26 095.422.07.1994DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) VORRICHTUNG ZUM AUTOMATISCHEN SCHLIESSEN EINER ABSPERRARMATUR
(EN) DEVICE FOR THE AUTOMATIC CLOSURE OF A SHUT-OFF FITTING
(FR) DISPOSITIF DE FERMETURE AUTOMATIQUE D'UNE ROBINETTERIE D'ARRET
Abstract
(DE)
Zur Schadensbegrenzung bei Über- oder Unterschreiten des zulässigen Druckes sind von Gasen oder Flüssigkeiten durchströmte Leitungsanlagen mit selbständig schließenden Absperrarmaturen ausgerüstet. Derartige Schließvorrichtungen werden durch ein eine Schließkraft hemmendes Element in Offenstellung gehalten. Aufgabe der Erfindung ist die Schaffung einer automatischen Absperrvorrichtung einfacher Bauweise, die bei unzulässigem Druck zuverlässig und selbsttätig das Schließen einer Absperrarmatur bewirkt. Die Schließvorrichtung weist als die Schließkraft hemmendes Element mindestens einen druckbeaufschlagten volumenänderlichen Hohlkörper (6) mit mindestens einer Abblasevorrichtung (9) auf, welcher der Betriebsdruck zugeführt wird. Bei Über- oder Unterschreiten des zulässigen Betriebsdruckes wird der Schließvorgang ausgelöst, in dem die Abblasevorrichtung (9) öffnet, der Druck an dieser Stelle entweicht und die wirksam werdende Schließkraft ein Schließen der Absperrarmatur (1) bewirkt. Eine derartige Schließvorrichtung läßt sich mit verschiedenartigen handelsüblichen Absperrarmaturen (1) kombinieren.
(EN)
In order to limit damage when pressure exceeds or falls below a certain permissible level, ducts carrying gas or liquid are provided with automatically closing shut-off fittings. These fittings are kept in the open position by elements which counteract the closing force. The purpose of the invention is to create an automatic closure device of simple design which will reliably and automatically cause the shut-off fitting to close if the pressure exceeds or falls below the permissible range. The proposed closure device is provided with at least one variable-volume hollow body which can be pressurized; this acts as the closing force counteracting element. The hollow body has at least one relief device (9) to which the operating pressure is applied. If the pressure exceeds or falls below the permissible value, the closure sequence is triggered: the relief device (9) opens, the pressure at that location falls and the closing force becomes effective and closes the shut-off fitting (1). A closure device of this type can be combined with various types of usual commercial shut-off fittings (1).
(FR)
Afin de limiter les dégâts provoqués par une pression située au-dessous ou au-dessus de la valeur admissible, on équipe les canalisations parcourues par des gaz ou des fluides de robinetteries d'arrêt à fermeture automatique. Ces dispositifs de fermeture sont maintenus en position ouverte par un élément bloquant une force de fermeture. L'invention vise à réaliser un dispositif d'arrêt automatique, de conception simple, qui provoque la fermeture fiable et automatique d'une robinetterie en cas de pression inadmissible. Ce dispositif de fermeture présente au moins un corps creux (6) expansible, sous pression, servant d'élément bloquant la force de fermeture et comportant au moins un dispositif d'évent (9) alimenté par la pression de service. Lorsque la pression se situe au-dessous ou au-dessus de la pression de service admissible, la fermeture se déclenche comme suit: le dispositif d'évent (9) s'ouvre, la pression s'échappe à cet endroit et la force de fermeture provoque alors la fermeture de la robinetterie d'arrêt (1). Ce type de dispositif de fermeture peut être combiné avec différents types de robinetteries d'arrêt disponibles dans le commerce.
Also published as
Latest bibliographic data on file with the International Bureau