[go: up one dir, main page]

AT526729A3 - pressure vessel - Google Patents

pressure vessel Download PDF

Info

Publication number
AT526729A3
AT526729A3 ATA50858/2023A AT508582023A AT526729A3 AT 526729 A3 AT526729 A3 AT 526729A3 AT 508582023 A AT508582023 A AT 508582023A AT 526729 A3 AT526729 A3 AT 526729A3
Authority
AT
Austria
Prior art keywords
inner container
valve
sealing surface
fitting
valve receptacle
Prior art date
Application number
ATA50858/2023A
Other languages
German (de)
Other versions
AT526729A2 (en
AT526729B1 (en
Inventor
Zieger Andreas
Original Assignee
Zieger Andreas
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 Zieger Andreas filed Critical Zieger Andreas
Publication of AT526729A2 publication Critical patent/AT526729A2/en
Publication of AT526729A3 publication Critical patent/AT526729A3/en
Application granted granted Critical
Publication of AT526729B1 publication Critical patent/AT526729B1/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47KSANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K13/00Seats or covers for all kinds of closets
    • A47K13/24Parts or details not covered in, or of interest apart from, groups A47K13/02 - A47K13/22, e.g. devices imparting a swinging or vibrating motion to the seats
    • A47K13/26Mounting devices for seats or covers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • F17C13/04Arrangement or mounting of valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C1/00Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C1/00Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/16Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • F17C13/06Closures, e.g. cap, breakable member
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01Shape
    • F17C2201/0104Shape cylindrical
    • F17C2201/0109Shape cylindrical with exteriorly curved end-piece
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05Size
    • F17C2201/056Small (<1 m3)
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602Wall structures; Special features thereof
    • F17C2203/0604Liners
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602Wall structures; Special features thereof
    • F17C2203/0612Wall structures
    • F17C2203/0614Single wall
    • F17C2203/0619Single wall with two layers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602Wall structures; Special features thereof
    • F17C2203/0612Wall structures
    • F17C2203/0614Single wall
    • F17C2203/0621Single wall with three layers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634Materials for walls or layers thereof
    • F17C2203/0658Synthetics
    • F17C2203/0663Synthetics in form of fibers or filaments
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634Materials for walls or layers thereof
    • F17C2203/0658Synthetics
    • F17C2203/0663Synthetics in form of fibers or filaments
    • F17C2203/0673Polymers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634Materials for walls or layers thereof
    • F17C2203/0678Concrete
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0305Bosses, e.g. boss collars
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2209/00Vessel construction, in particular methods of manufacturing
    • F17C2209/21Shaping processes
    • F17C2209/2109Moulding
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2209/00Vessel construction, in particular methods of manufacturing
    • F17C2209/21Shaping processes
    • F17C2209/2154Winding
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/01Pure fluids
    • F17C2221/012Hydrogen
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/03Mixtures
    • F17C2221/032Hydrocarbons
    • F17C2221/033Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107Single phase
    • F17C2223/0123Single phase gaseous, e.g. CNG, GNC
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036Very high pressure (>80 bar)
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2270/00Applications
    • F17C2270/01Applications for fluid transport or storage
    • F17C2270/0165Applications for fluid transport or storage on the road
    • F17C2270/0168Applications for fluid transport or storage on the road by vehicles
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS 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
    • F17C2270/00Applications
    • F17C2270/01Applications for fluid transport or storage
    • F17C2270/0165Applications for fluid transport or storage on the road
    • F17C2270/0184Fuel cells

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

Die Erfindung betrifft einen Faserverbund-Druckbehälter (100) zur Speicherung von flüssigen oder gasförmigen Medien, umfassend einen Innenbehälter (1) zur Aufnahme des Mediums mit einer Öffnung (2) und einer Dichtfläche (7), einer Ventilaufnahme (3) zur teilweise radialen und teilweise axialen Abstützung des Innenbehälters (4), wobei die Ventilaufnahme (3) form- und/oder kraftschlüssig mit dem Innenbehälter (1) verbunden ist, eine Schale (5) aus einem Faserverbundwerkstoff zur Umschließung des Innenbehälters (4) und der Ventilaufnahme (3) zur Aufnahme der Kräfte infolge des Drucks im Innenbehälter (1) und einem Tankventil (4) zum Verschluss der Öffnung (2) mit einer Dichtfläche (13), wobei das Ventil (2) form- und/oder kraftschlüssig mit der Ventilaufnahme (3) verbunden ist, wobei das Dichtmittel (14) zwischen der Dichtfläche (7) des Innenbehälters (1) und der Dichtfläche (13) des Tankventils (4) dichtet und die Wandstärke des Innenbehälters (1) im Bereich des Dichtmittels (14) in Analogie zum Polymer-Metall-Verbundlager maximal 0,5 mm + zulässige Verpressung des Dichtmittels (14) beträgt.The invention relates to a fiber composite pressure vessel (100) for storing liquid or gaseous media, comprising an inner container (1) for receiving the medium with an opening (2) and a sealing surface (7), a valve receptacle (3) for partially radially and partially axially supporting the inner container (4), wherein the valve receptacle (3) is connected to the inner container (1) in a form-fitting and/or force-fitting manner, a shell (5) made of a fiber composite material for enclosing the inner container (4) and the valve receptacle (3) for absorbing the forces resulting from the pressure in the inner container (1), and a tank valve (4) for closing the opening (2) with a sealing surface (13), wherein the valve (2) is connected to the valve receptacle (3) in a form-fitting and/or force-fitting manner, wherein the sealing means (14) seals between the sealing surface (7) of the inner container (1) and the sealing surface (13) of the tank valve (4) and the wall thickness of the inner container (1) in the Area of the sealant (14) in analogy to the polymer-metal composite bearing is a maximum of 0.5 mm + permissible compression of the sealant (14).

ATA50858/2023A 2022-11-14 2023-10-23 pressure vessel AT526729B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATGM76/2022U AT18077U1 (en) 2022-11-14 2022-11-14 pressure vessel

Publications (3)

Publication Number Publication Date
AT526729A2 AT526729A2 (en) 2024-06-15
AT526729A3 true AT526729A3 (en) 2024-07-15
AT526729B1 AT526729B1 (en) 2025-04-15

Family

ID=89123202

Family Applications (2)

Application Number Title Priority Date Filing Date
ATGM76/2022U AT18077U1 (en) 2022-11-14 2022-11-14 pressure vessel
ATA50858/2023A AT526729B1 (en) 2022-11-14 2023-10-23 pressure vessel

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ATGM76/2022U AT18077U1 (en) 2022-11-14 2022-11-14 pressure vessel

Country Status (2)

Country Link
AT (2) AT18077U1 (en)
WO (1) WO2024103089A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100314396A1 (en) * 2009-06-15 2010-12-16 Magna Steyr Fahrzeugtechnik Ag & Co. Kg Pressure vessel for gaseous or liquid media
DE102010018700A1 (en) * 2010-04-29 2011-11-03 Magna Steyr Fahrzeugtechnik Ag & Co. Kg pressure vessel
US20160123532A1 (en) * 2014-01-28 2016-05-05 Yachiyo Industry Co., Ltd. Pressure container
WO2017015536A1 (en) * 2015-07-22 2017-01-26 Hansho Composites, Llc Bi-directional sealing system for the outlet of a plastic-lined compressed gas cylinder

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4935117B2 (en) * 2005-11-08 2012-05-23 トヨタ自動車株式会社 tank
DE102007011211B3 (en) 2007-03-08 2008-08-14 Xperion Gmbh Pressurized container for liquid or gas has a two part metal connection secured via a screw fit
US20110210515A1 (en) * 2010-02-26 2011-09-01 Dynetek Industries Ltd. Sealing system for the outlet of a plastic-lined compressed gas cylinder
CN112555679B (en) 2019-09-26 2022-02-25 未势能源科技有限公司 Pressure vessel and vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100314396A1 (en) * 2009-06-15 2010-12-16 Magna Steyr Fahrzeugtechnik Ag & Co. Kg Pressure vessel for gaseous or liquid media
DE102010018700A1 (en) * 2010-04-29 2011-11-03 Magna Steyr Fahrzeugtechnik Ag & Co. Kg pressure vessel
US20160123532A1 (en) * 2014-01-28 2016-05-05 Yachiyo Industry Co., Ltd. Pressure container
WO2017015536A1 (en) * 2015-07-22 2017-01-26 Hansho Composites, Llc Bi-directional sealing system for the outlet of a plastic-lined compressed gas cylinder

Also Published As

Publication number Publication date
AT18077U1 (en) 2023-12-15
AT526729A2 (en) 2024-06-15
AT526729B1 (en) 2025-04-15
WO2024103089A1 (en) 2024-05-23

Similar Documents

Publication Publication Date Title
WO2011134400A1 (en) Bidirectional pressure self balancing stop valve
AT526729A3 (en) pressure vessel
CN202580468U (en) Pressurized leakage stoppage device for pipeline
CN113187904B (en) A detachable high-pressure valve for sealing and locking
AU698328B2 (en) Device for pressure treatment of wood
CN102734473A (en) Rotational-free self-sealing valve
CN118408047A (en) A two-way internal thread ball valve
CN115325433A (en) Plastic lining fiber reinforced composite material high-pressure gas cylinder sealing structure
CN206637030U (en) A kind of flat cover sealing structure of high-pressure bottle
CN215059505U (en) A detachable high-pressure valve that realizes sealing and locking
CN101029689A (en) Replaceable valve of dual-sealing ring
CN203963006U (en) A kind of high-strength graphite Composition spacer
CN209321695U (en) A kind of acidproof basin loaded for hazardous chemical
CN110005868A (en) A kind of underwater ball-valve valve rod combined sealing structure
CN110118264A (en) A method of the high-performance expansion sluice valve with back seal function and replacement filler
CN211738077U (en) Plug valve
CN203009855U (en) Internal-pressure self-sealing type valve cover stop valve
CN207554816U (en) A kind of oxygen cutting valve
CN213512110U (en) Cryogenic globe valve with guide structure
CN103244694A (en) Piston type zero leakage stop valve
CN207178744U (en) The self sealing structure of high pressure sluice valve
CN218845250U (en) Rust-proof dead valve structure
CN211216612U (en) Reaction kettle main shaft sealing structure
CN213169289U (en) Packaging bag with hole at bottom
US20250137586A1 (en) Variable volume hydrogen container or hydrogen compressor with improved hydrogen embrittlement resistance