DE2553163A1 - Remotely operated valve for cryogenic material - has sealing bellows to keep liq. gas separate from working mechanism - Google Patents

Remotely operated valve for cryogenic material - has sealing bellows to keep liq. gas separate from working mechanism

Info

Publication number
DE2553163A1
DE2553163A1 DE19752553163 DE2553163A DE2553163A1 DE 2553163 A1 DE2553163 A1 DE 2553163A1 DE 19752553163 DE19752553163 DE 19752553163 DE 2553163 A DE2553163 A DE 2553163A DE 2553163 A1 DE2553163 A1 DE 2553163A1
Authority
DE
Germany
Prior art keywords
valve
pressure
pressure chamber
shut
cryogenic
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.)
Withdrawn
Application number
DE19752553163
Other languages
German (de)
Inventor
Gerd Jacobs
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.)
Vereinigte Flugtechnische Werke Fokker GmbH
Original Assignee
Vereinigte Flugtechnische Werke Fokker 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
Application filed by Vereinigte Flugtechnische Werke Fokker GmbH filed Critical Vereinigte Flugtechnische Werke Fokker GmbH
Priority to DE19752553163 priority Critical patent/DE2553163A1/en
Publication of DE2553163A1 publication Critical patent/DE2553163A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F17C13/04—Arrangement or mounting of valves
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/126—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like
    • F16K31/1262—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a diaphragm, bellows, or the like one side of the diaphragm being spring loaded
    • 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
    • F17C2205/0382—Constructional details of valves, regulators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Driven Valves (AREA)
  • Lift Valve (AREA)

Abstract

The valve incorporates an insulating cover for the cryogenic fluid e.g. liquid hydrogen or helium. Operation of the valve does not lead to the fluid being heated up. The valve housing surrounds a pressure chamber and the operating piston has an end face that operates the valve plate. A bellows seals off the fluid from the centre of the housing. the pressure chamber has a pneumatic connection through the insulating cover to a pressure source. When there is no pressure in the chamber, the valve plate is held by a return spring.

Description

Fernbetätigtes Absperrventil für cryogene Medien Remote shut-off valve for cryogenic media

Die Erfindung bezieht sich auf ein fernbetätigtes Absperrventil für cryogene Medien innerhalb eines Isolationsmantels.The invention relates to a remotely operated shut-off valve for cryogenic media within an isolation jacket.

Unter cryogenen Medien sollen hier vorzugsweise tiefgekühlte verflüssigte Gase wie z.B. Wasserstoff oder IIelium verstanden werden. Die Leitungen, durch die diese Medien strömen, sind zur Vermeidung von Erwärmung dieser tiefgekühlten Medien mit einem geeigneten Isolationsmantel verbunden. Befinden sich in einem derartig wärmeisolierten Leitungsabsehnitt Ventile, so ergibt sich das Problem, die Betätigungsmittel für das Öffnen und Schließen dieses Ventiles durch den Isolationsmantel hindurch zu führen, ohne daß Wärme von dem cryogenen Medium aufgenommen wird. Bei bisher bekanntgewordenen Ventilen für cryogene Medien wird das Ventil bzw. sein Ventilteller über eine Spindel betätigt, die vom Ventil durch den Isolationsmantel nach außen geführt wird. hierbei ist die Spindel ebenfalls wärmeisoliert. Trotzdem gelangt über die wärmeleitende Spindel Wärme von außen an das cryogene Medium, so daß diese Lösung im Hinblick auf die Wärmeisolation unbefriedigend ist.Cryogenic media should preferably be frozen liquefied media Gases such as hydrogen or IIelium are understood. The lines through which These media flow are to avoid the heating of these deep-frozen media connected with a suitable insulation jacket. Are in such a way heat-insulated cable section Valves, the problem arises the actuating means for opening and closing this valve through the insulation jacket to pass through without heat being absorbed by the cryogenic medium. at Valves for cryogenic media that have become known to date will be the valve or Valve disc actuated via a spindle, which is driven by the valve through the insulation jacket is led to the outside. here the spindle is also thermally insulated. Nevertheless If heat reaches the cryogenic medium from outside via the heat-conducting spindle, see above that this solution is unsatisfactory in terms of thermal insulation.

Aufgabe der Erfindung ist ess ein Absperrventil für cryogene Medien zu schaffen, das eine Betätigung, d.h. ein Cffnen und Schließen von außen, d.h. außerhalb der Isolation dermaßen erlaubt, daß das cryogene tiefgekühlte Medium möglichst wenig Wärme von außen aufnimmt und somit gut wärmeisoliert ist.The object of the invention is a shut-off valve for cryogenic media to provide an actuation, i.e. opening and closing, from the outside, i.e. outside the isolation to such an extent that the cryogenic deep-frozen medium as possible absorbs little heat from the outside and is therefore well insulated.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß dvs Ventilgehäuse eine Druckkammer umfaßt, die über die Kolbenfläche eines den Ventilteller tragender Betätigungskolbens und einen Faltenbalg. gegenüber dem das cryogene Medium aufnehmenden Inneren des Ventilgehäuses abgedichtet ist, und daß die Druckkammer über eine durch den Isolationsmantel nach außen führende Druckleitung pneumatisch wirksam mit einer Steuerdruckquelle verbunden ist. Weitere Ausgestaltungen der Erfindung sind den Kennzeichen der Ansprüche 2 und 3 zu entnehmen. Durch das erfindungsgemäße Absperrventil, insbesondere durch seine erfindungsgemäße Betätigung, werden Härmeverluste weitgehend ausgeschaltet. Durch die beliebig lang wählbare Druckleitung zwischen der Druckkammer und dem äußeren des Isolationsmantel wird die Möglichkeit, daß Wärme auf dem Wege der Wärmeleitung von außen nach innen zu dem cryogenen Medium dringt, weitgehend ausgeschaltet.According to the invention this object is achieved in that dvs valve housing comprises a pressure chamber, which over the piston surface of one of the valve head supporting Actuating piston and a bellows. compared to the one receiving the cryogenic medium Inside the valve housing is sealed, and that the pressure chamber has a through the insulation jacket leading to the outside pressure line pneumatically effective with a Control pressure source is connected. Further embodiments of the invention are the Characteristics of claims 2 and 3 can be found. Through the shut-off valve according to the invention, especially through its operation according to the invention, heat losses are largely switched off. Thanks to the pressure line between the pressure chamber, which can be selected as required and the outer of the insulation jacket will reduce the possibility of heat on the way the heat conduction penetrates from the outside to the inside to the cryogenic medium, largely switched off.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen beschrieben und wird im folgenden näher erläutert. Es zeigen Figur 1 das erfindungsgemäße Absperrventil in der Ausführungsvari ante "drucklos geschlossen" und Figur 2 das erfindungsgemäße Absperrventil in der Ausführungsvariante "drucklos offen".An embodiment of the invention is described in the drawings and is explained in more detail below. FIG. 1 shows the shut-off valve according to the invention in the variant "closed without pressure" and FIG. 2 shows the invention Shut-off valve in the variant "open without pressure".

Figur 1 zeigt das erfindungsgemäße Absperrventil 1, das sich innerhalb des Isolationsmantels 3 befindet, der aus Gründen der lfärmeisolation weitgehend evakuiert ist. Das cryogene Medium 2 strömt in der durch den Pfeil gekennzeichneten Richtung von links nach rechts durch das Absperrventil 1, sofern dieses geöffnet und nicht, wie in der Zeichnung dargestellt geschlossen ist. In dieser Stellung liegt der Ventilteller 8 an dem Ventilsitz 9 des Ventilgehäuses 4 an und dichtet damit den linken Raum des Ventilgehäuses 4 gegenüber dem rechten ab. Der Ventilteller 8 ist über einen Schaft mit dem Betätigungskolben 7 verbunden, der auf seiner Oberseite die Kolbenfläche 6 aufweist. Letztere ist über einen Faltenbalg 10 mit dem Ventilgehäuse 4 derart dichtend verbunden, daß der ebenfalls mit dem Ventilgehäuse 4 verbundene Druckraum 5 gegen das Innere des Ventilgehäuses 4 und damit gegen das cryogene Medium 2 abgedichtet ist. Eine Rückstellfeder 11, die sich gegen das Ventilgehäuse 4 und den Betätigungskoiben 7 abstützt, sorgt dafür, daß der Betätigungskolben bzw. der Ventilteller 8 bei drucklosem Druckraum 5 in seiner oberen d.h. seiner Schließstellung gehalten wird. Die Druckkammer 5 ist über eine relativ dünnwandige Druckleitung 12 mit einer Steuerdruckquelle 13 verbunden, die sich außerhalb des Isolationsmantels 3 befindet. Dieses Ausführungsbeispiel des erfindungsgemäßen Absperrventiles befindet sich bei druckloser Druckkanmer 5 in geschlossener Stellung. Wird von der Steuerdruckquelle 13 aus, Druck in die Druckkammer 5 gegeben, so bewirkt dieser Druck auf die Kolbenfläche 6 des Betätigungskolben 7, daß dieser gegen die Kraft der Rückstellfeder nach unten bewegt und das Ventil damit geöffnet wird. Bei Ablassen des Druckes aus der Druckkammer 5 wird der Betätigungskolben 7 durch die Rückstellfeder 11 wieder nach oben gedrückt und das Ventil damit geschlossen.Figure 1 shows the shut-off valve 1 according to the invention, which is within of the insulation jacket 3 is located, which largely for reasons of noise insulation is evacuated. The cryogenic medium 2 flows in the direction indicated by the arrow Direction from left to right through the shut-off valve 1, if this is open and not, as shown in the drawing, is closed. In this position the valve disk 8 rests against the valve seat 9 of the valve housing 4 and seals so that the left space of the valve housing 4 compared to the right. The valve disc 8 is connected to the actuating piston 7 via a shaft, which is on its upper side the piston surface 6 has. The latter is connected to the valve housing via a bellows 10 4 so sealingly connected that the valve housing 4 is also connected Pressure chamber 5 against the interior of the valve housing 4 and thus against the cryogenic medium 2 is sealed. A return spring 11, which is against the valve housing 4 and supports the actuating piston 7, ensures that the actuating piston or the Valve disk 8 in the pressureless pressure chamber 5 in its upper i.e. its closed position is held. The pressure chamber 5 is via a relatively thin-walled pressure line 12 connected to a control pressure source 13, which is located outside the insulation jacket 3 is located. This embodiment of the shut-off valve according to the invention is located when the Druckkanmer 5 is depressurized, it is in the closed position. Used by the control pressure source 13 from, given pressure in the pressure chamber 5, this causes pressure on the piston surface 6th of the actuating piston 7 that this against the force of the return spring is moved downwards and the valve is thus opened. Off when the pressure is released the pressure chamber 5 is the actuating piston 7 by the return spring 11 again pushed up and the valve closed.

Figur 2 zeigt ein anderes Ausführungsbeispiel des erfindungsgemäßen Absperrvent-iles, wobei das Ventil bei druckloser Druckkammer geöffnet ist im Gegensatz zu der in der Zeichnung dargestellten geschlossenen Stellung. In dieser Figur 2 sind die gleichen Teile mit den gleichen Bzugsziffern wie in Figur 1 ersehen und entsprechen sich im wesentlichen. Die einzige Ausnahme bildet die einstückige Ausbildung des Ventiltellers 8 mit dem Betätigungskolben 7 und dessen Kolbenfläche 6.Figure 2 shows another embodiment of the invention Shut-off valves, in contrast to which the valve is open when the pressure chamber is depressurized to the closed position shown in the drawing. In this figure 2 the same parts with the same reference numbers as in Figure 1 can be seen and essentially correspond. The only exception is the one-piece training of the valve disk 8 with the actuating piston 7 and its piston surface 6.

Im Gegensatz zu Figur 1 geht der Ventilteller ohne Durchmesserverengung inform eines Ventilschaftes direkt in den Betätigungskdben 7 über, so daß bei Öffnen des Ventils der Druck des Mediums die Aufwärtsbewegung des Ventiltellers voll unterstützt. Wie durch dn Pfeil angedeutet strömt das cryogene Medium von rechts nach links durch das Absperrventil 1, so daß der Mediumdruck zur Schließkraft des Ventiltellers 8 nicht beiträgt, sondern diese allein vom Druck auf die Kolbenfläche 6 des Betätigungskolben 7 aufgcbracht werden muß.In contrast to FIG. 1, the valve disk does not have a narrowing in diameter inform of a valve stem directly in the actuator 7 over, so that when opening of the valve, the pressure of the medium fully supports the upward movement of the valve disk. As indicated by the arrow, the cryogenic medium flows through from right to left the shut-off valve 1, so that the medium pressure for the closing force of the valve disk 8 does not contribute, but this solely from the pressure on the piston surface 6 of the actuating piston 7 must be raised.

- Ansprüche - Bezugsziffernliste 1 Absperrventil 2 cryogenes Medium 3 Isolationsmantel 4 Ventilgehäuse 5 Druckkammer 6 Kolbenfläche 7 Betätigungskolben 8 Ventilteller 9 Ventilsitz 10 Faltenbalg 11 Rückstellfeder 12 Druckleitung 13 Steuerdruckquelle - Expectations - LIST OF REFERENCE NUMBERS 1 shut-off valve 2 cryogenic medium 3 insulation jacket 4 valve housing 5 pressure chamber 6 piston surface 7 actuating piston 8 valve disc 9 valve seat 10 bellows 11 return spring 12 Pressure line 13 Control pressure source

Claims (3)

Ansprüche 1. Fernbetätigtes Absperrventil für cryogene Medien innerhalb eines Isolationsmantels, dadurch g e k e n n z e i c h n e t, daß das Ventilgehäuse (4) eine Druckkammer (5) umfaßt, die über die Kolbenfläche (6) eines den Ventilteller (8) tragenden Betätigungskolbens (7) und einen Faltenbalg (10) gegenüber dem das cryogene Medium (2) aufnehmenden Inneren des Ventilgehäuses (4) abgedichtet ist, und daß die Druckkammer (5) über eine durch den Isolationsmantel (3) nach außen führende Druckleitung (12) pneumatisch wirksam mit einer Steuerdruckquelie (13) verbunden ist. Claims 1. Remote shut-off valve for cryogenic media within an insulating jacket, characterized in that the valve housing (4) comprises a pressure chamber (5) which over the piston surface (6) of the valve disk (8) supporting actuating piston (7) and a bellows (10) opposite the das cryogenic medium (2) receiving interior of the valve housing (4) is sealed, and that the pressure chamber (5) to the outside via a through the insulating jacket (3) leading pressure line (12) pneumatically effective with a control pressure source (13) connected is. 2. Absperrventil nach Anspruch 1 dadurch g e k e n n z e i c h -n e t, daß der Ventilteller (8) bei druckloser Druckkammer (5) durch eine Rückstellfeder (11) derart belastet und durch den Druck des cryogenen Mediums (2) derart beaufschlagt ist, daß er auf seinen Ventilsitz (9) gedrückt wird und das' Ventil (1) schließt.2. Shut-off valve according to claim 1, characterized in that g e k e n n z e i c h -n e t that the valve disk (8) with a pressureless pressure chamber (5) by a return spring (11) so loaded and so acted upon by the pressure of the cryogenic medium (2) is that it is pressed onto its valve seat (9) and the 'valve (1) closes. 3. Absperrventil nach Anspruch 1 dadurch g e k e n n z e i c h -n e ts daß der Ventilteller (8) bei druckloser Druckkammer (5) durch eine Rückstellfeder (11) derart belastet dnd durch den Druck des cryogenen Mediums derart beaufschlagt ist, daß er von dem Ventilsitz (9) abgehoben wird und das Ventil (i) öffnet.3. Shut-off valve according to claim 1, characterized g e k e n n z e i c h -n e ts that the valve plate (8) with a pressureless pressure chamber (5) by a return spring (11) so loaded and acted upon by the pressure of the cryogenic medium is that it is lifted from the valve seat (9) and the valve (i) opens.
DE19752553163 1975-11-27 1975-11-27 Remotely operated valve for cryogenic material - has sealing bellows to keep liq. gas separate from working mechanism Withdrawn DE2553163A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752553163 DE2553163A1 (en) 1975-11-27 1975-11-27 Remotely operated valve for cryogenic material - has sealing bellows to keep liq. gas separate from working mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752553163 DE2553163A1 (en) 1975-11-27 1975-11-27 Remotely operated valve for cryogenic material - has sealing bellows to keep liq. gas separate from working mechanism

Publications (1)

Publication Number Publication Date
DE2553163A1 true DE2553163A1 (en) 1977-06-02

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DE19752553163 Withdrawn DE2553163A1 (en) 1975-11-27 1975-11-27 Remotely operated valve for cryogenic material - has sealing bellows to keep liq. gas separate from working mechanism

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029184B1 (en) * 1979-11-17 1984-03-28 INTERATOM Internationale Atomreaktorbau GmbH Pressure fluid actuated valve
EP0750148A1 (en) * 1995-05-10 1996-12-27 Fujikin Incorporated Pressure controlling valve
WO1999064164A1 (en) * 1998-06-08 1999-12-16 Evertz Hydrotechnik Gmbh & Co. Kg Prestressed controllable flow-through limiting valve, especially a spraying valve, and a spraying bar
EP1431639A1 (en) * 2002-12-19 2004-06-23 Techspace Aero S.A. Valve with integrated actuator
DE102013006106A1 (en) 2013-04-09 2014-10-09 Delo Industrie Klebstoffe Gmbh & Co. Kgaa metering
WO2016087097A1 (en) * 2014-12-05 2016-06-09 Robert Bosch Gmbh Valve having a metal-bellows/piston unit

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0029184B1 (en) * 1979-11-17 1984-03-28 INTERATOM Internationale Atomreaktorbau GmbH Pressure fluid actuated valve
EP0750148A1 (en) * 1995-05-10 1996-12-27 Fujikin Incorporated Pressure controlling valve
US5634627A (en) * 1995-05-10 1997-06-03 Fujikin Incorporated Controller
WO1999064164A1 (en) * 1998-06-08 1999-12-16 Evertz Hydrotechnik Gmbh & Co. Kg Prestressed controllable flow-through limiting valve, especially a spraying valve, and a spraying bar
EP1431639A1 (en) * 2002-12-19 2004-06-23 Techspace Aero S.A. Valve with integrated actuator
US7055542B2 (en) 2002-12-19 2006-06-06 Techspace Aero, S.A. Valve with integrated actuator
DE102013006106A1 (en) 2013-04-09 2014-10-09 Delo Industrie Klebstoffe Gmbh & Co. Kgaa metering
WO2016087097A1 (en) * 2014-12-05 2016-06-09 Robert Bosch Gmbh Valve having a metal-bellows/piston unit
US10295068B2 (en) 2014-12-05 2019-05-21 Robert Bosch Gmbh Valve having a metal-bellows/piston unit

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