WO2019046876A1 - Vanne d'arrêt cryogénique - Google Patents

Vanne d'arrêt cryogénique Download PDF

Info

Publication number
WO2019046876A1
WO2019046876A1 PCT/AT2018/060202 AT2018060202W WO2019046876A1 WO 2019046876 A1 WO2019046876 A1 WO 2019046876A1 AT 2018060202 W AT2018060202 W AT 2018060202W WO 2019046876 A1 WO2019046876 A1 WO 2019046876A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
flow channel
liquid
gaseous
seal
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.)
Ceased
Application number
PCT/AT2018/060202
Other languages
German (de)
English (en)
Inventor
Gerhard COMELLI
Stefan LEEB
Marietta JANCAR
Gerald JARITZ
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.)
Ventrex Automotive GmbH
Original Assignee
Ventrex Automotive 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 Ventrex Automotive GmbH filed Critical Ventrex Automotive GmbH
Publication of WO2019046876A1 publication Critical patent/WO2019046876A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F16K25/00—Details relating to contact between valve members and seats
    • F16K25/005—Particular materials for seats or closure elements
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/36—Valve members
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G67/00—Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing oxygen or oxygen and carbon, not provided for in groups C08G2/00 - C08G65/00
    • C08G67/02—Copolymers of carbon monoxide and aliphatic unsaturated compounds
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/021—Sealings between relatively-stationary surfaces with elastic packing
    • F16J15/022—Sealings between relatively-stationary surfaces with elastic packing characterised by structure or 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • 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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/46—Attachment of sealing rings
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2190/00—Compositions for sealing or packing joints

Definitions

  • the invention relates to a valve according to the preamble of patent claim 1 and the use according to claim 7.
  • valves which are used at very low temperatures of the medium flowing through the valves, ie in the range below -40 ° C. and well below.
  • These valves are predominantly polytetrafluoroethylene (PTFE) and polychlorotrifluoroethylene (PCTFE), which are mixed with various additives, e.g. Graphite can be mixed, used as sealing materials.
  • PTFE polytetrafluoroethylene
  • PCTFE polychlorotrifluoroethylene
  • Graphite can be mixed, used as sealing materials.
  • very low temperatures for example below -100 ° C, which occur approximately in the production of liquid nitrogen, known from the prior art valves have a greatly deteriorated tightness, causing increased internal and / or external leakage occur.
  • low-temperature resistant materials include polyamide-imide (PAI), polyarylimide (PI), ultra-high molecular weight polyethylene (UHMW-PE), and perfluoroalkoxyalkanes (PFA) which have been tested for suitability in cryogenic valves. Although the results showed an increased tightness, although lower, but still occurring leakage problems were found especially in the range below -150 ° C, for example at -196 ° C, the temperature of liquid nitrogen.
  • PAI polyamide-imide
  • PI polyarylimide
  • UHMW-PE ultra-high molecular weight polyethylene
  • PFA perfluoroalkoxyalkanes
  • Object of the present invention is therefore to improve the tightness of cryogenic valves with a range of below -40 ° C.
  • valve seal consists of a polyketone (PK).
  • valve seal is arranged in the valve seat or on the closing element.
  • valve seal and / or the valve seat have a maximum roughness R zmax of less than or equal to 3.6 ⁇ .
  • valve seal on the valve seat, it is provided that the deviation of the concentricity between valve seat and valve seal is less than or equal to 0.8 mm.
  • the pressure range of the valve is between 0 and 100 bar of the medium flowing in the flow channel.
  • valve is designed as a pressure relief valve or as a check valve or as a manually operated valve or as a solenoid valve.
  • Another aspect of the invention is the use of a polyketone as the material of a valve seal of a cryogenic valve, wherein the flowing medium in the valve is a cryogenic medium and a temperature of less than -40 ° C, preferably below -100 ° C, particularly preferred below -150 ° C, and is preferably liquid or gaseous nitrogen or liquid or gaseous oxygen or liquid or gaseous hydrogen or liquid or gaseous natural gas or liquid or gaseous methane or liquid or gaseous carbon monoxide or liquid or gaseous carbon dioxide.
  • Fig. 1 shows a first embodiment of the valve according to the invention in the form of an automatic solenoid valve
  • Fig. 2 shows a second embodiment of the valve according to the invention in the embodiment as a manually operated valve
  • Fig. 3 shows a third embodiment of the valve according to the invention, which is designed as a pressure relief valve is.
  • a first embodiment of the valve 10 according to the invention is shown, which is designed as an automatic solenoid valve.
  • the valve 10 comprises a valve housing 1 1, in which a flow channel 1 is formed.
  • the flow channel 1 extends from one end of the housing 1 1 via a valve seat 2 across the other end of the housing 1 first
  • a medium can enter the housing 1 1 of the valve 10 and exit via the valve seat 2 further in the flow channel 1 from the housing 1 1 of the valve 10 again.
  • a closing element 3 is arranged, which is linearly adjustable in the flow channel 1 relative to the valve seat 2.
  • valve seal 5 is arranged between the valve seat 2 and the closing element 3, which seals the flow channel 1 between the valve seat 2 and the closing element 3 in the closed state of the valve 10.
  • the valve seal 5 consists of a polyketone.
  • the polyketone Sustakon from Röchling Sustaplast SE & Co. KG used.
  • the valve 10 shown in FIG. 1 is designed for a cryogenic application, wherein in the case of cryogenic valves, the medium flowing in the flow channel 1 has a temperature of below -40 ° C., preferably below -100 ° C., and particularly preferably below -150 ° C., having.
  • the flowing medium in the flow channel 1 is any cryogenic medium, preferably liquid nitrogen at a temperature below -196 ° C, liquid or gaseous nitrogen or liquid or gaseous oxygen or liquid or gaseous hydrogen or liquid or gaseous natural gas or liquid or gaseous methane or liquid or gaseous carbon monoxide or liquid or gaseous carbon dioxide.
  • the temperature occurring in these media flowing in the flow channel 1 temperature can be significantly below -150 ° C depending on the pressure, whereby the components of the valve, in particular the valve seat 2 and the valve seal 5, are cooled to below -150 ° C.
  • a valve seal 5 made of a polyketone an excellent return and Energy absorption, good dimensional stability, excellent resistance to hydrolysis and chemicals, a particularly good abrasion resistance and also has very good thermo-mechanical properties.
  • valve 10 is designed as a manually operated valve and has a leading in a housing 1 1 in cross-section circular flow channel 1.
  • an adjustable closing element 3 is arranged opposite a valve seat 2, with which the flow of a medium flowing in the flow channel 1 can be regulated or adjusted.
  • a valve seal 5 is arranged, which consists of a polyketone.
  • the adjustment of the closing element 3 takes place in this embodiment of the valve 10 by an unillustrated hand wheel or other adjusting mechanisms, which adjusts the closing element 3 in the direction of the valve seat 2.
  • the polyketone Riamaxx HR 00 St was used by RiaPolymers GmbH for the valve seal 5.
  • Fig. 3 is a third embodiment of the valve 10 according to the invention, which is designed as a pressure relief valve shown.
  • the valve 10 comprises a closing element 3, which is pressed by a spring 13 in the direction of the valve seat 2.
  • the closing element 3 has, at the end facing the valve seat 2, a valve seal 5 which seals the flow channel 1 with respect to the surroundings of the valve 10. If the pressure in the flow channel 1 increases, the spring is compressed and the flow path of the pending in the flow channel 1 medium released, whereby the pressure in the flow channel 1 is reduced.
  • the polyketone Riamaxx HR 00 Z of the company RiaPolymers GmbH was used for the valve seal 5.
  • valve 10 As an alternative to the embodiments of the valve 10 shown in FIGS. 1 to 3, other configurations such as check valves or other valves known from the prior art may also be provided.
  • valves 10 shown in FIGS. 1 to 3 advantageously have a slight deviation of the concentricity between the valve seat 2 and the valve seal 5, which is preferably less than or equal to 0.8 mm.
  • the embodiments of FIGS. 2 and 3 and also of the embodiments not shown can have a surface roughness with a maximum roughness R zm ax of 3.6 ⁇ , by which the tightness of the valve 10 in closed state is further increased.
  • valves 10 or valves 10 according to the invention shown in FIGS. 1 to 3 lies in the range between 0 and 100 bar, whereby pressures beyond this may also be present in the flow channel 1 in the valves 10 according to the invention.
  • valve seals 5 made of the polyketones Sustakon from Röchling Sustaplast SE & Co. KG, Riamaxx HR 00 Z nature of the company RiaPolymers GmbH, Riamaxx HR 00 St nature of the company RiaPolymers GmbH and Riamaxx HR P18 AR of the company RiaPolymers GmbH tested, valve seals according to the invention 5 but can also optionally from any other known from the prior art polyketone with or without additives.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Lift Valve (AREA)

Abstract

L'invention concerne une vanne (10) destinée à être utilisée à de basses températures, en particulier en dessous de -40° C, de préférence en dessous de -100° C, particulièrement de préférence en dessous de -150° C, ladite vanne comprenant un canal d'écoulement (1) et un élément de fermeture (3) pouvant être relativement déplacé à l'encontre d'un siège de vanne (2), élément de fermeture par lequel une section transversale d'écoulement définie destinée au fluide en écoulement dans le canal d'écoulement (1) peut être libérée, la vanne (10) comprenant un élément d'étanchéité de vanne (5), lequel assure l'étanchéité du canal d'écoulement (1) entre le siège de vanne (2) et l'élément de fermeture (3), lorsque la vanne est à l'état fermé (10), Selon l'invention, l'élément d'étanchéité de vanne (5) se compose d'une polycétone.
PCT/AT2018/060202 2017-09-07 2018-09-07 Vanne d'arrêt cryogénique Ceased WO2019046876A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50749/2017 2017-09-07
ATA50749/2017A AT520342A1 (de) 2017-09-07 2017-09-07 Ventil zum Einsatz im Tieftemperaturbereich sowie Verwendung dieses Ventils

Publications (1)

Publication Number Publication Date
WO2019046876A1 true WO2019046876A1 (fr) 2019-03-14

Family

ID=63637591

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2018/060202 Ceased WO2019046876A1 (fr) 2017-09-07 2018-09-07 Vanne d'arrêt cryogénique

Country Status (2)

Country Link
AT (2) AT520342A1 (fr)
WO (1) WO2019046876A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111473120A (zh) * 2020-05-15 2020-07-31 红旗仪表有限公司 一种温度压力两用表自封阀
EP3970796A4 (fr) * 2019-05-14 2022-12-21 Senju Pharmaceutical Co., Ltd. Composition pour prévenir ou traiter une kératite neurotrophique contenant un peptide de type pacap ou un peptide de type pacap stabilisé

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10323836B3 (de) * 2003-05-23 2005-02-03 Effbe Gmbh Druckventil mit Dichtungsvorrichtung, insbesondere für die Kraftfahrzeugtechnik
WO2013092652A1 (fr) * 2011-12-20 2013-06-27 Total Research & Technology Feluy Dispositif de dosage d'alimentation en continu
WO2015048548A1 (fr) * 2013-09-26 2015-04-02 Saint-Gobain Performance Plastics Corporation Vanne rotative bidirectionnelle
WO2017018997A1 (fr) * 2015-07-24 2017-02-02 Saint-Gobain Performance Plastics Corporation Segment racleur

Family Cites Families (7)

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Publication number Priority date Publication date Assignee Title
US5975212A (en) * 1998-04-20 1999-11-02 Camco International Inc. Surface controlled subsurface safety valve downstop seal
JP2001221347A (ja) * 2000-02-09 2001-08-17 Mitsubishi Electric Corp 開閉弁およびそれを用いた冷凍サイクル装置
ITMI20012826A1 (it) * 2001-12-28 2003-06-28 Nuovo Pignone Spa Elemento di tenuta ad usura ridotta in particolare per cilindri e pistoni di compressori alternativi
JP2015175485A (ja) * 2014-03-17 2015-10-05 三菱重工業株式会社 切替弁
CN104976404B (zh) * 2014-04-03 2018-04-20 北京中科富海低温科技有限公司 一种气动低温调节阀
DE102015005108A1 (de) * 2015-04-10 2016-10-13 Parker Hannifin Manufacturing Germany GmbH & Co. KG Ringförmige Dichtung zur Medientrennung zwischen zwei relativ zueinander bewegten Körpern
CH710986A1 (de) * 2015-04-20 2016-10-31 Brugg Rohr Ag Holding Verbindungsanordnung mit einem Anschlussstück und einem thermisch gedämmten Leitungsrohr.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10323836B3 (de) * 2003-05-23 2005-02-03 Effbe Gmbh Druckventil mit Dichtungsvorrichtung, insbesondere für die Kraftfahrzeugtechnik
WO2013092652A1 (fr) * 2011-12-20 2013-06-27 Total Research & Technology Feluy Dispositif de dosage d'alimentation en continu
WO2015048548A1 (fr) * 2013-09-26 2015-04-02 Saint-Gobain Performance Plastics Corporation Vanne rotative bidirectionnelle
WO2017018997A1 (fr) * 2015-07-24 2017-02-02 Saint-Gobain Performance Plastics Corporation Segment racleur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3970796A4 (fr) * 2019-05-14 2022-12-21 Senju Pharmaceutical Co., Ltd. Composition pour prévenir ou traiter une kératite neurotrophique contenant un peptide de type pacap ou un peptide de type pacap stabilisé
CN111473120A (zh) * 2020-05-15 2020-07-31 红旗仪表有限公司 一种温度压力两用表自封阀

Also Published As

Publication number Publication date
AT520342A1 (de) 2019-03-15
AT16523U1 (de) 2019-12-15

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