EP1999402A1 - Dispositif de soupape d'arret - Google Patents

Dispositif de soupape d'arret

Info

Publication number
EP1999402A1
EP1999402A1 EP07723059A EP07723059A EP1999402A1 EP 1999402 A1 EP1999402 A1 EP 1999402A1 EP 07723059 A EP07723059 A EP 07723059A EP 07723059 A EP07723059 A EP 07723059A EP 1999402 A1 EP1999402 A1 EP 1999402A1
Authority
EP
European Patent Office
Prior art keywords
valve device
check
valve
check valve
shut
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Withdrawn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
EP07723059A
Other languages
German (de)
English (en)
Inventor
Robert Adler
Georg Siebert
Martin Stehrlein
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.)
Linde GmbH
Original Assignee
Linde 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 Linde GmbH filed Critical Linde GmbH
Publication of EP1999402A1 publication Critical patent/EP1999402A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/021—Check valves with guided rigid valve members the valve member being a movable body around which the medium flows when the valve is open
    • 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
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • 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
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/20—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with a compressible solid closure member

Definitions

  • the invention relates to a shut-off valve device with a flow position and a shut-off position for leakage-free shut-off of a pressure of several thousand bar.
  • check valve devices which are suitable for securing pressures of several thousand bar, high-quality and extremely high-strength material is required for the check valve device, as a result of which the check valve device has high manufacturing costs.
  • the leakage-free shut-off is no longer given even with minor damage, making known
  • the present invention has for its object to provide a check valve device of the type mentioned, which has a long service life at low manufacturing costs.
  • the check valve device has at least two non-return valves arranged in series, the non-return valves having elastically deformable valve bodies.
  • the pressure to be protected is distributed and distributed among several non-return valves connected in series, whereby in the blocking position, the elastic deformation of the valve body causes the load on the valve body through pressure to be secured can be divided between several check valves.
  • customary high-strength elastic material can be used for the check valve device, whereby the check valve device has low manufacturing costs.
  • a leak-free shut-off is achieved with a high degree of safety, as a result of which a long service life of the check valve device can be achieved.
  • the valve bodies are each designed as seat valves which control a sealing edge formed on a valve housing. With such seat valves, which control a sealing edge fixed to the housing, check valves can be formed in a simple manner.
  • valve body and the sealing edge can have a wide variety of design forms.
  • valve body is provided with a conical surface facing the sealing edge and the sealing edge is formed on a further conical surface of the valve housing, the conical surface and the further conical surface having different opening angles.
  • Valve housing are generated and an elastic deformation of the valve body in the locked position are allowed.
  • a circumferential elevation is formed on the conical surface of the valve body in the region of the sealing surface and / or a circumferential elevation forming the sealing surface is formed on the further conical surface of the valve housing.
  • an intermediate space is formed between adjacent non-return valves in the valve housing, which can be completely filled with an incompressible medium, in particular water or liquid carbon dioxide, in order to act on the non-return valves in the blocking position.
  • an incompressible medium in particular water or liquid carbon dioxide
  • the check valves are expediently arranged vertically. By arranging the check valves in the vertical direction, the spaces between the check valves can be completely filled with the incompressible medium in a simple manner.
  • a control surface acting in the direction of the blocking position is particularly advantageously formed on the area of the check valves opposite the conical surface.
  • control surface of the uppermost non-return valve can be acted upon by the pressure to be secured in order to act in the blocking position, the control surface of the uppermost non-return valve being arranged below the fill level of the incompressible medium. This achieves additional cooling of the uppermost check valve, which enables a high temperature of the pressure to be protected.
  • the check valves expediently consist of high-strength, elastic
  • the valve bodies of the check valves can be produced from a customary high-strength, elastic metal, as a result of which the check valve device consisting of several check valves has a low manufacturing expenditure.
  • Figure 2 shows a check valve device according to the invention in the locked position
  • FIG. 3 shows a plan view of a check valve device according to the invention
  • Figure 4 shows another embodiment of a check valve device according to the invention in the flow position
  • Figure 5 shows the check valve device according to Figure 4 in the locked position.
  • a check valve device 1 according to the invention is shown in the flow position.
  • the check valve device 1 comprises at least two check valves 2a, 2b, which are arranged in series.
  • the check valves 2a, 2b are each designed as seat valves and have a valve body 3a, 3b, which in each case controls a sealing edge 5a, 5b formed on a valve housing 4.
  • the valve body 3a, 3b is provided with a conical surface 6a, 6b on the side facing the sealing edge 5a, 5b.
  • the sealing edge 5a, 5b is formed on a further conical surface 7a, 7b of the valve housing 4.
  • the conical surface 6a, 6b of the valve body 3a, 3b has a smaller opening angle than the further conical surface 7a, 7b of the valve housing.
  • valve bodies 3a, 3b On the end face opposite the conical surface 6a, 6b, the valve bodies 3a, 3b have a control surface 8a, 8b acting in the direction of the blocking position.
  • the valve housing 4 and the check valves 3a, 3b are arranged vertically, the upper check valve 3a being connected via the valve housing 4 to an explosion space (not shown) of an explosion-forming machine.
  • valve bodies 3a, 3b of the check valves 2a, 2b are mounted in the valve housing 4 so as to be longitudinally displaceable and are provided with through bores 12a, 12b.
  • the through bores 12a, 12b are - as shown in FIG. 3 - arranged concentrically.
  • the valve bodies 3a, 3b are provided with a control surface 10a, 10b acting in the direction of the flow position.
  • An intermediate space 9a formed by the valve housing 4 is formed between the check valve 2a and the adjacent check valve 2b.
  • a further intermediate space 9b is formed between the check valve 3b and a further check valve which is arranged below and is no longer shown.
  • medium for example an explosive gas or gas mixture
  • the check valves 2a, 2b are acted upon in the flow position by the medium present on the control surface 10a, 10b.
  • the valve housing 4 is filled with incompressible liquid medium, for example water or liquid carbon dioxide, up to the control surface 8a of the upper check valve 3a, as a result of which the spaces 9a, 9b are completely filled with the incompressible medium and the control surface 8a of the upper check valve 2a is arranged below the fill level 15 of the incompressible medium.
  • incompressible liquid medium for example water or liquid carbon dioxide
  • the pressure to be secured in the explosion space is present via the incompressible medium at the control surface 8a of the upper check valve 2a acting in the direction of the blocking position and acts on the valve body 3a in the blocking position.
  • the valve body 3a is deformed elastically, as a result of which the deformation movement of the valve body 3a is passed on to the valve body 3b of the check valve 2b via the incompressible medium located in the intermediate space 9a and a pressure acting in the direction of the blocking position is generated on the control surface 8b.
  • the valve body 3b also deforms elastically, as a result of which the further check valve, which is no longer shown, is actuated into the blocking position via the incompressible medium located in the intermediate space 9b. Due to the incompressible medium, the pressure to be secured at the upper check valve 2a is passed on to the further check valves and thus the load due to the pressure to be secured is divided between the number of check valves.
  • FIGS. 4 and 5 show a second embodiment of an inventive one
  • the further conical surface 7a of the valve housing 4 is provided with an encircling elevation 20 which forms the sealing edge 5a which can be controlled by the valve body 3a.
  • the check valve device 1 is shown in the flow position.
  • the check valve device 1 is in the locked position. With the elevation 20, a secure leakage-free shut-off of the pressure to be secured with a long service life can be achieved.
  • the peripheral elevation 20 on the conical surface 6a of the valve body 3a in the region of the sealing edge 5a formed on the valve housing 4.
  • the division of the load when the pressure to be secured is shut off to a plurality of check valves 2a, 2b and thus a plurality of valve bodies 3a, 3b enables the valve body 3a, 3b to use customary high-strength elastic material, in particular high-strength, elastic metal.
  • a check valve device 1 according to the invention is made available, with which a pressure of several thousand bar can be safely shut off with low construction costs and manufacturing costs.
  • a long service life can be achieved by dividing the load when the pressure to be secured is shut off over several check valves.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)

Abstract

L'invention concerne un dispositif de soupape d'arrêt (1) comprenant une position de passage d'écoulement et une position d'arrêt pour bloquer sans fuite une pression de plusieurs milliers de bars. Conformément à l'invention, on obtient un dispositif de soupape d'arrêt qui présente une grande durée de vie pour de faibles coûts de fabrication par le fait que le dispositif de soupape d'arrêt (1) présente au moins deux soupapes antiretour (2a, 2b) disposées en série, les soupapes antiretour (2a, 2b) présentant des corps de soupape (3a, 3b) déformables élastiquement.
EP07723059A 2006-03-30 2007-03-06 Dispositif de soupape d'arret Withdrawn EP1999402A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200610014846 DE102006014846A1 (de) 2006-03-30 2006-03-30 Sperrventileinrichtung
PCT/EP2007/001914 WO2007115618A1 (fr) 2006-03-30 2007-03-06 Dispositif de soupape d'arret

Publications (1)

Publication Number Publication Date
EP1999402A1 true EP1999402A1 (fr) 2008-12-10

Family

ID=38055527

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07723059A Withdrawn EP1999402A1 (fr) 2006-03-30 2007-03-06 Dispositif de soupape d'arret

Country Status (3)

Country Link
EP (1) EP1999402A1 (fr)
DE (1) DE102006014846A1 (fr)
WO (1) WO2007115618A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012204071A1 (de) * 2012-03-15 2013-09-19 Krones Ag Einseitig wirkende Abdichtung für Prozessventile

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB344686A (en) * 1929-04-22 1931-03-12 Knut Jonas Elias Hesselman Improvements in spring-loaded valves
US1953007A (en) * 1930-07-24 1934-03-27 Westinghouse Air Brake Co Check valve device
US2306012A (en) * 1941-06-11 1942-12-22 John Eley Jr Check valve
US2556708A (en) * 1944-03-13 1951-06-12 Lincoln Eng Co Hydraulic circuit apparatus
JPS57167572A (en) * 1981-04-08 1982-10-15 Hitachi Ltd Check valve
US5533548A (en) * 1995-05-18 1996-07-09 Caterpillar Inc. Valving interface for a poppet valve
US6206032B1 (en) * 2000-07-11 2001-03-27 James H. Hill High pressure check valve fittings
JP4609687B2 (ja) * 2001-04-26 2011-01-12 株式会社デンソー 逆止弁およびそれを備えた燃料噴射ポンプ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007115618A1 *

Also Published As

Publication number Publication date
WO2007115618A1 (fr) 2007-10-18
DE102006014846A1 (de) 2007-10-04

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Owner name: LINDE AG

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Effective date: 20090530