DE3823444C1 - Thermally triggered shut-off device - Google Patents

Thermally triggered shut-off device

Info

Publication number
DE3823444C1
DE3823444C1 DE19883823444 DE3823444A DE3823444C1 DE 3823444 C1 DE3823444 C1 DE 3823444C1 DE 19883823444 DE19883823444 DE 19883823444 DE 3823444 A DE3823444 A DE 3823444A DE 3823444 C1 DE3823444 C1 DE 3823444C1
Authority
DE
Germany
Prior art keywords
cylinder
melting
shut
retaining element
thermally
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.)
Expired - Lifetime
Application number
DE19883823444
Other languages
German (de)
Inventor
Josef Gottfried
Karl Heinz 5200 Siegburg De Kleine
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.)
GOK Regler und Armaturen GmbH and Co KG
Original Assignee
Gok Regler- und Armaturen & Co Kg 5200 Siegburg De GmbH
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 DE19873700726 external-priority patent/DE3700726A1/en
Application filed by Gok Regler- und Armaturen & Co Kg 5200 Siegburg De GmbH filed Critical Gok Regler- und Armaturen & Co Kg 5200 Siegburg De GmbH
Priority to DE19883823444 priority Critical patent/DE3823444C1/en
Application granted granted Critical
Publication of DE3823444C1 publication Critical patent/DE3823444C1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/01—Control of temperature without auxiliary power
    • G05D23/02—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature
    • G05D23/028—Control of temperature without auxiliary power with sensing element expanding and contracting in response to changes of temperature with fusing sensing element
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/04—Removing or cutting-off the supply of inflammable material
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
    • F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
    • F16K17/383—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature the valve comprising fusible, softening or meltable elements, e.g. used as link, blocking element, seal, closure plug
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • F17C13/123—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures for gas bottles, cylinders or reservoirs for tank vehicles or for railway tank wagons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0382—Constructional details of valves, regulators
    • F17C2205/0385—Constructional details of valves, regulators in blocks or units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/06—Controlling or regulating of parameters as output values
    • F17C2250/0605—Parameters
    • F17C2250/0626—Pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Safety Valves (AREA)

Abstract

Thermally triggered shut-off devices are based in part on a retaining element which melts at a particular temperature and, in melting, releases a spring-loaded valve taper plug into the closed position. In the rest position, this thermally reacting retaining element is subject to continuous stress by the valve spring and may thus suffer from creep, namely cold flow, which should be prevented. If this retaining element is arranged in the form of a melting cylinder (88) within a cylindrical bush (85) with small passage holes (87) on the fixed base-bush side (86), the deformation forces are distributed from the movable thrust washer (89) acting on the melting cylinder (88) to the wall (85) of the cylindrical bush and only when the melting temperature is reached can the liquid material of the melting cylinder (88) escape through the small passage holes (87) and allow the rod (33) of the closing taper plug to execute the closing travel. This embodiment is suitable for a thermally triggered shut-off device in safety shut-off valves in gas pipes. <IMAGE>

Description

Die Zusatz-Erfindung betrifft eine thermisch auslösende Ab­ sperreinrichtung nach Anspruch 4 des Hauptpatentes P 37 00 726.2-12, angeordnet in einem Sicherheitsabsperr­ ventil vor dem Regelventil 35 eines Gasdruckregelgerätes. Der Stand der Technik ist in der Hauptpatentanmeldung dar­ gelegt. Es hat sich herausgestellt, daß sich die verwendeten leicht schmelzbaren Lote, z. B. das Wood′sche Metall, nicht gut für auf Scherbeanspruchungen ausgelegte Verbindungen eignen.The additional invention relates to a thermally triggering locking device according to claim 4 of the main patent P 37 00 726.2-12, arranged in a safety shut-off valve in front of the control valve 35 of a gas pressure regulator. The state of the art is set out in the main patent application. It has been found that the easily meltable solders used, e.g. B. the Wood's metal, not well suited for shear connections.

Aufgabe der Zusatzerfindung ist es, eine thermisch abgesi­ cherte, durch ein leicht schmelzbares Lot gehaltene Schließ­ einrichtung so auszubilden, daß die verbundenen Funktions­ teile nicht auf Scherbeanspruchung, sondern auf Druckbean­ spruchung belastet werden und daß diesem auf Druckbeanspru­ chung zwischen den Funktionsteilen angeordneten Lot auch keine Möglichkeit gegeben wird, unter der Druckbelastung wegzufließen, was auf lange Zeiträume gesehen möglich ist.The task of the additional invention is a thermally sealed secured clasp held by an easily meltable solder Training device so that the associated function share not on shear, but on pressure stress and that this is under pressure also arranged between the functional parts no way is given under the pressure load to flow away, which is possible over a long period of time.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Zusatzpatentanspruches gelöst.This object is achieved by the characterizing Features of the additional patent claim solved.

Die mit dieser Zusatzerfindung erzielbaren Vorteile liegen darin, daß durch den Einschluß des leicht schmelzbaren Lotes in eine allseits abgeschlossene Kammer dem Lot keine Mög­ lichkeit gegeben wird, unter den normal herrschenden Wir­ kungskräften wegzufließen.The advantages that can be achieved with this additional invention lie in that by including the easily meltable solder no possibility for the plumb bob in a chamber closed on all sides is given among the normally ruling We flow away.

Auf beigefügten Zeichnungen sind Ausführungsbeispiele darge­ stellt. Diese zeigen in:Exemplary embodiments are shown in the attached drawings poses. These show in:

Fig. 1 einen kompletten Schnitt durch das Reglerventilge­ häuse 55 mit angeschraubtem Sicherheitsabsperr­ ventil 56, Fig. 1 is a complete section through the housing 55 with screwed Reglerventilge safety stop valve 56,

Fig. 2 einen vergrößerten Ausschnitt von den Wirkungsteilen der Schmelzsicherung. Fig. 2 shows an enlarged section of the functional parts of the fuse.

Das Sicherheitsabsperrventil 56 unterbricht sowohl bei er­ höhtem Reglerausgangsdruck als auch bei erhöhter Temperatur den Gaszufluß zum Regelventil 35 durch ein Auslösen des unter Federspannung stehenden Ventilschließkegels 34. Bei erhöhtem Regeldruck hebt sich die Membraneinrichtung 40 mit dem Schaltgestänge 41 von der Zylinderbuchse 65 ab, die Schließfeder 32 bringt den Ventilschließkegel 34 in Schließ­ stellung. Bei erhöhter Temperatur schmilzt das zylinder­ förmig ausgebildete Lot 86 innerhalb der Zylinderbuchse 85 und wird im flüssigen Zustand von der unter der Federschließ­ kraft 32 stehenden Druckscheibe 89 durch die Durchtritts­ bohrungen 87 in der Zylinderbuchse 85 aus der Zylinderbuchse herausgedrückt, und der unter Federkraft stehende Ventil­ stößel mit dem Ventilschließkegel 34 geht in Schließstellung und unterbricht somit den Gasfluß zum Regelventil 35. Die Zylinderbuchse 85, angelegt am Schaltgestänge 41, verbleibt dabei in ihrer Ausgangsstellung, die sich nur bei An­ sprechen auf Überdruck ändert. Das zylinderförmig ausge­ bildete Lot 88 behält unter der ständigen Druckbeanspru­ chung innerhalb der Zylinderbuchse 85 seine Form; die Durchtrittsbohrungen 87 verhindern gleichfalls ein Durch­ fließen des Lotes unter den Druckbelastungen bei Normal­ temperatur.The safety shut-off valve 56 interrupts the gas flow to the control valve 35 by triggering the valve-closing cone 34, which is under spring tension, both when the controller output pressure is increased and when the temperature is increased. At increased control pressure, the membrane device 40 with the shift linkage 41 stands out from the cylinder sleeve 65 , the closing spring 32 brings the valve closing cone 34 into the closed position. At an elevated temperature, the cylinder-shaped solder 86 melts within the cylinder sleeve 85 and is pressed out in the liquid state by the pressure disk 89 standing under the spring closing force 32 through the through-holes 87 in the cylinder sleeve 85 from the cylinder sleeve, and the valve plunger under spring force with the valve closing cone 34 goes into the closed position and thus interrupts the gas flow to the control valve 35 . The cylinder liner 85 , applied to the shift linkage 41 , remains in its initial position, which only changes when speaking to excess pressure. The cylinder-shaped solder 88 retains its shape under the constant pressure load within the cylinder liner 85 ; The through holes 87 also prevent the solder from flowing under the pressure loads at normal temperature.

Claims (1)

Thermisch auslösende Absperreinrichtung nach Anspruch 4 des Hauptpatentes P 37 00 726.2-12, dadurch gekennzeichnet, daß
  • a) die Haltevorrichtung (39) aus einer auf dem Ventilstößel (33) gleitend geführten, gegen das Schaltgestänge (41) abgestützten, im Durchmesser abgesetzten, einseitig offenen Zylinderbuchse (85) besteht
  • b) am Umfang der Zylinderbuchsenwandung in Höhe des Buchsen­ bodens (86) mehrere Durchtrittsbohrungen (87) angeordnet sind
  • c) innerhalb der Zylinderbuchse ein Zylinder aus einem bei definierter Temperatur schmelzbarem Lot angeordnet ist
  • d) die offene Zylinderbuchsenseite durch eine einerseits auf den Ventilstößel (33) abgestützte, andererseits mit der Kraft der Schließfeder (32) gegen den aus Lot be­ stehenden Zylinder (88) drückende, innerhalb der Zylinder­ buchsenbohrung geführte Druckscheibe (89) abgedeckt ist.
Thermally triggering shut-off device according to claim 4 of the main patent P 37 00 726.2-12, characterized in that
  • a) the holding device ( 39 ) consists of a cylinder bushing ( 85 ) which is slidingly guided on the valve tappet ( 33 ) and is supported against the shift linkage ( 41 ) and has a diameter which is offset on one side
  • b) a plurality of through bores ( 87 ) are arranged on the circumference of the cylinder liner wall at the level of the liner bottom ( 86 )
  • c) a cylinder made of a solder that can be melted at a defined temperature is arranged inside the cylinder sleeve
  • d) the open cylinder liner side is covered by a pressure plate ( 89 ) which is supported on the one hand on the valve tappet ( 33 ) and, on the other hand, with the force of the closing spring ( 32 ) against the cylinder ( 88 ) consisting of solder ( 88 ) and which is inside the cylinder bore.
DE19883823444 1987-01-13 1988-07-11 Thermally triggered shut-off device Expired - Lifetime DE3823444C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19883823444 DE3823444C1 (en) 1987-01-13 1988-07-11 Thermally triggered shut-off device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873700726 DE3700726A1 (en) 1987-01-13 1987-01-13 Thermally triggered shut-off device
DE19883823444 DE3823444C1 (en) 1987-01-13 1988-07-11 Thermally triggered shut-off device

Publications (1)

Publication Number Publication Date
DE3823444C1 true DE3823444C1 (en) 1990-02-08

Family

ID=25851509

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19883823444 Expired - Lifetime DE3823444C1 (en) 1987-01-13 1988-07-11 Thermally triggered shut-off device

Country Status (1)

Country Link
DE (1) DE3823444C1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4128270A1 (en) * 1991-08-26 1993-03-04 Gok Gmbh & Co Kg Safety device for shut=off valves in gas pipes - acts even at operating pressure should membrane become damaged
DE19619100A1 (en) * 1996-05-06 1997-11-13 Schoettler Lunos Lueftung Release or actuation element e.g. to trip sprinklers

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NICHTS ERMITTELT *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4128270A1 (en) * 1991-08-26 1993-03-04 Gok Gmbh & Co Kg Safety device for shut=off valves in gas pipes - acts even at operating pressure should membrane become damaged
DE4128270C2 (en) * 1991-08-26 2001-02-22 Gok Gmbh & Co Kg Additional device in the event of a diaphragm rupture on a safety shut-off valve for gas lines
DE19619100A1 (en) * 1996-05-06 1997-11-13 Schoettler Lunos Lueftung Release or actuation element e.g. to trip sprinklers

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Owner name: GOK REGLER- UND ARMATUREN GMBH & CO. KG, 97252 FRI