[go: up one dir, main page]

WO2016005279A1 - Device for protecting a high-pressure gas reservoir of a motor vehicle, high-pressure gas reservoir for a motor vehicle and method for the production of a high-pressure gas reservoir - Google Patents

Device for protecting a high-pressure gas reservoir of a motor vehicle, high-pressure gas reservoir for a motor vehicle and method for the production of a high-pressure gas reservoir Download PDF

Info

Publication number
WO2016005279A1
WO2016005279A1 PCT/EP2015/065180 EP2015065180W WO2016005279A1 WO 2016005279 A1 WO2016005279 A1 WO 2016005279A1 EP 2015065180 W EP2015065180 W EP 2015065180W WO 2016005279 A1 WO2016005279 A1 WO 2016005279A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure gas
gas container
intumescent layer
layer
gas reservoir
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/EP2015/065180
Other languages
German (de)
French (fr)
Inventor
Timo Christ
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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 Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of WO2016005279A1 publication Critical patent/WO2016005279A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/035—Orientation with substantially horizontal main axis
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0604—Liners
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0619—Single wall with two layers
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0639—Steels
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0646—Aluminium
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/066—Plastics
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • 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
    • F17C2205/01—Mounting arrangements
    • F17C2205/0103—Exterior arrangements
    • F17C2205/0115—Dismountable protective hulls
    • 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/22—Assembling processes
    • F17C2209/227—Assembling processes by adhesive means
    • 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/232—Manufacturing of particular parts or at special locations of walls
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/011—Oxygen
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/013—Carbon dioxide
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/031—Air
    • 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
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036—Very high pressure (>80 bar)
    • 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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/04—Reducing risks and environmental impact
    • F17C2260/042—Reducing risk of explosion
    • 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

Definitions

  • the present invention relates to a device for protecting a high-pressure gas container of a motor vehicle.
  • High-pressure gas containers which are generally also called composite containers, composite containers or fiber composite containers, generally comprise wholly or partially fiber-reinforced material layers surrounding a liner.
  • the liner is often made of aluminum or steel and houses the compressed gases, such as. Compressed air, oxygen, methane, hydrogen, carbon dioxide, etc. Also plastic liners are known.
  • Such high-pressure gas containers are used, for example, in vehicles which are operated with compressed natural gas, often referred to as compressed natural gas (CNG), or with hydrogen.
  • CNG compressed natural gas
  • TPRD thermal pressure release devices
  • a small local flame that acts on the tank between two valves can therefore severely damage the high-pressure gas container without the safety device being activated.
  • Damage to the high-pressure gas container caused by the action of heat from a local flame for example damage to the load-bearing fiber Composite, can lead to failure and in extreme cases to bursting of the high-pressure gas tank.
  • the high-pressure gas cylinders store gases with a pressure of several hundred bar. Accordingly, the bursting of the high-pressure gas container can lead to a very dangerous damage to the entire vehicle.
  • the fiber composite layers usually carry a major part of the load. The damage of the fiber-reinforced material layer by thermal or mechanical influences can thus quickly lead to degradation of the structural integrity or to a significant weakening of the component.
  • a device in which a hydrate-containing layer is arranged above or below a high-pressure gas container.
  • these layers are attached to a panel at a distance from the high-pressure tank.
  • the safety valves and their supply line are arranged between the panel and the high pressure gas container.
  • slings are provided around the high-pressure gas tank.
  • the installation of these safety valves and their supply line are complex. Furthermore, this design takes a relatively large amount of space. According to this document, the tank is protected by locally absorbing the heat by increasing the volume of the hydrate-containing layer.
  • a device for protecting a high-pressure gas container of a motor vehicle for example.
  • a vehicle that can be refueled with natural gas or hydrogen.
  • the device has an intumescent or intumescent layer which shields the high-pressure gas container at least partially or at least in one area against a fire source.
  • the intumescent layer further comprises an intumescent and ceramizing elastomeric material.
  • shielding means that the intumescent layer at least reduces mechanical but in particular thermal effects and / or delayed.
  • the intumescent layer causes the high-pressure gas container in the shielded by the intumescent layer portion of the Hochlichgasbereheater not so quickly heated and / or shock cause less damage than in the areas where the intumescent layer does not shield the high-pressure gas tank.
  • the thermal shielding effect is such that an effective fire protection is formed which at least appreciably delays the effect of the fire.
  • intumescence generally refers to the expansion or swelling, ie the increase in size of a solid body under the influence of temperature.
  • the term refers to the swelling or foaming of materials. Intumescent materials thus increase in volume and density due to heat. The volume above the usual level of thermal expansion increases significantly, often many times. The physical properties change significantly. By swelling or foaming, for example, creates an insulating layer.
  • the intumescent layer functions as a heat brake and as a mechanical protection. Hydrates, unlike ceramizing elastomeric materials, can provide mechanical protection only to a very limited extent.
  • the ceramizing elastomeric material can effectively protect the fiber-reinforced material layers, particularly in the state of being foamed or expanded, from mechanical effects by the ceramics structures which are formed (for example pyrolysis and intermediate layer). This is advantageous because in the event of fire, the risk of mechanical effects is greatly increased.
  • the intumescent layer can be fastened directly to the high pressure gas container.
  • the intumescent layer can be applied to the high-pressure gas container, for example by means of a coating method, or held by other fastening means directly on the high-pressure gas container, preferably abutting.
  • the intumescent layer is at a small distance, for example. Less than 5 cm, preferably less than 1 cm from the outermost layer of the high pressure gas container spaced. By such an embodiment tion, the installation space for the high-pressure gas container in the motor vehicle can be further reduced.
  • the gap between the intumescent layer and outermost layer of the high-pressure gas container constitutes an additional insulation layer.
  • the high-pressure gas container is preferably configured such that the safety valves are not shielded by the intumescent layer in front of the flame.
  • the response of the safety valves can be further improved.
  • the direct application of the intumescent layer 20 to the high pressure gas container the space can be further reduced.
  • the intumescent layer may enclose half, preferably at least 75% of the circumference of the high-pressure gas container.
  • the weight can be further reduced.
  • the material costs for the ceramizing elastomer material are reduced.
  • the intumescent layer has a wall thickness of 0.1 mm to 20 mm, preferably from 2 mm to 10 mm, and particularly preferably from 3 mm to 6 mm.
  • a configuration of the intumescent layer has a favorable ratio of weight to shielding effect.
  • the intumescent layer expands at least 2 times, preferably at least 5 times, more preferably at least 10 times, and most preferably about 20 times to 30 times its original wall thickness.
  • the ceramizing elastomeric material may comprise a sintering and / or vitrifying component. Further, the ceramizing elastomeric material may comprise a metal oxide filler.
  • the elastomeric material may have one of the following components: Si0 2 , Ti0 2 , Al 2 0 3 , and / or SiC. Such a material has an increased strength in the intumescent state.
  • the elastomeric material may comprise a catalytically active ingredient, for example B 2 O 3 or iron compounds. Thus, it is preferable to reduce the sintering temperatures. Ceramizing elastomeric materials are already shown for example in EP0878520.
  • the safety valve is arranged on the outside of the intumescent layer. In other words, the liner of the high-pressure gas container is arranged on one side of the intumescent layer and the safety valve on the other side.
  • the technology disclosed herein also includes a high pressure gas container with the apparatus for protecting the high pressure gas container described herein.
  • the high-pressure gas container preferably has a fiber-reinforced layer.
  • the fiber reinforced layer may enclose a liner, such as aluminum, of the container.
  • a liner such as aluminum
  • CFRP and GFRP are used as fiber-reinforced plastics.
  • the intumescent layer is at least partially applied to the outer surface of the fiber-reinforced layer.
  • the technology disclosed herein preferably includes a method of making the high pressure container disclosed herein.
  • the method preferably comprises the following steps:
  • the core here is the liner of the high-pressure gas container together with any additional material layers, for example a fiber-reinforced material layer.
  • Fig. 1 is a cross-sectional drawing of a high pressure gas container
  • Fig. 2 shows an enlarged view of the detail A of Fig. 1.
  • the core 12 of the high-pressure gas container 10 comprises a liner 16, here, for example, an aluminum liner 16 and a fiber reinforced layer 14 surrounding the liner 16 and increasing the strength of the high pressure gas container 10.
  • the intumescent layer 20 is applied here.
  • the intumescent layer 20 lies directly against the core 12 here.
  • the intumescent layer 20 is embodied here as an intumescent ceramizing elastomer material.
  • the safety valves 40 are each spaced 1 m apart along the longitudinal axis of the high-pressure gas container 10 and connected to the inlet 18 of the high-pressure gas container through the connecting line 42.
  • the arrow F represents a local thermal heat action, which occurs at a distance from the safety valve 40.
  • the safety valve 40 is not shielded by the shield 20 against the incoming heat here. The valve 40 therefore triggers comparatively quickly.
  • FIG. 2 the detail A of Fig. 1 is shown.
  • the layer structure of the high-pressure gas container 10 comprising the liner 16, the fiber-reinforced layer 14 and the intumescent layer 20 can be seen.
  • the fastener 30 is connected to the safety valve 40 and secured thereto.
  • a holder of the safety valves 40 or 30 of the fastener can be done via a strap.
  • 3 shows the installation situation of the high-pressure gas container 10 in a vehicle.
  • the high-pressure gas container 10 is arranged here between the wheels 54 in a tunnel 50.
  • the intumescent layer 20 is arranged here arcuately and surrounds the core 12 of the high-pressure gas container 10 at least partially tight-fitting.
  • the intumescent layer 20 protects the high-pressure gas container 10 from thermal and / or mechanical influences, which are caused here, for example, by objects which are located between the vehicle floor and the roadway.
  • an intumescent layer 20 designed as a panel may also be provided, which is preferably fastened below the vehicle floor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention relates to a device for protecting a high-pressure gas reservoir (10) of a motor vehicle, comprising an intumescent layer (20). Said intumescent layer (20) is arranged and designed such that the intumescent layer (20) at least partially shields the high-pressure gas reservoir (10). The intumescent layer (20) comprises an intumescent elastomer material.

Description

Vorrichtung zum Schutz eines Hochdruck asbehälters eines Kraftfahrzeugs, Device for protecting a high-pressure asbehälters a motor vehicle,

Hochdruckgasbehälter für ein Kraftfahrzeug sowie Verfahren zur Herstellung eines Hochdruckgasbehälters High pressure gas container for a motor vehicle and method for producing a high pressure gas container

Die vorliegende Erfindung betrifft eine Vorrichtung zum Schutz eines Hochdruckgasbehälters eines Kraftfahrzeugs. Hochdruckgasbehälter, welche allgemein auch Composit-Behälter, Verbundwerkstoffbehälter oder Faserverbundbehälter genannt werden, umfassen in der Regel ganz oder teilweise faserverstärkte Materialschichten, die einen Liner umgeben. Der Liner ist oft aus Aluminium oder Stahl gebildet und beherbergt die komprimierten Gase, wie bspw. Druckluft, Sauerstoff, Methan, Wasserstoff, Kohlensäure etc. Auch Kunststoffliner sind bekannt. Solche Hochdruckgasbehälter werden beispielsweise in Fahrzeuge eingesetzt, die mit komprimiertem Erdgas, oft als compressed natural gas (CNG) bezeichnet, oder mit Wasserstoff betrieben werden. The present invention relates to a device for protecting a high-pressure gas container of a motor vehicle. High-pressure gas containers, which are generally also called composite containers, composite containers or fiber composite containers, generally comprise wholly or partially fiber-reinforced material layers surrounding a liner. The liner is often made of aluminum or steel and houses the compressed gases, such as. Compressed air, oxygen, methane, hydrogen, carbon dioxide, etc. Also plastic liners are known. Such high-pressure gas containers are used, for example, in vehicles which are operated with compressed natural gas, often referred to as compressed natural gas (CNG), or with hydrogen.

Beim Einsatz solcher Hochdruckgasbehälter besteht das Risiko, dass dessen Struktur durch Hitzeeinwirkung geschwächt wird. Aus dem Stand der Technik bekannt ist der Einsatz von Sicherheitsventilen, sog. thermal pressure release devices (TPRD). Diese Sicherheitsventile dienen dem Brandschutz. Die Ausgestaltung der Sicherheitsventile bzw. Brandschutzventile ist bspw. durch die Norm EC79/2009 vorgegeben. Bei direkter Hitzeeinwirkung auf diese Sicherheitsventile (z.B. durch Flammen), wird das im Hochdruckgasbehälter gespeicherte Gas in die Umgebung abgelassen. Die Sicherheitsventile lassen das Gas ab, sobald eine Mindesttemperatur an dem Sicherheitsventil überschritten wird. Die Ventile sind in der Regel in einem Abstand von ca. 1 m voneinander entlang der Längsrichtung des Hochdruckgasbehälters angeordnet. Die wenigen Ventile entlang der großen Druckbehälter können dabei jeweils nur ein räumlich stark begrenztes Einzugsgebiete berücksichtigen. Eine kleine lokale Flamme, die zwischen zwei Ventilen auf den Tank einwirkt, kann den Hochdruckgasbehälter daher stark schädigen, ohne dass die Sicherheitseinrichtung aktiviert wird. Die durch die Hitzeeinwirkung einer lokalen Flamme entstehende Schädigung des Hochdruckgasbehälters, bspw. die Schädigung des lasttragenden Faser- Verbundwerkstoffes, kann zum Versagen und im Extremfall zum Bersten des Hochdruckgasbehälters führen. Die Hochdruckgasbehälter speichern Gase mit einem Druck von mehreren Hundert bar. Dementsprechend kann das Bersten des Hochdruckgasbehälters zu einer sehr gefährlichen Schädigung des gesamten Fahrzeugs führen. Die Faserverbundschichten tragen in der Regel einen Hauptteil der Last. Die Beschädigung der faserverstärkten Materialschicht durch thermische oder mechanische Einflüsse kann somit schnell zur Degradation der strukturellen Integrität bzw. zu einer signifikanten Schwächung des Bauteils führen. When using such high-pressure gas containers there is a risk that its structure is weakened by heat. The use of safety valves, known as thermal pressure release devices (TPRD), is known from the prior art. These safety valves are for fire protection. The design of the safety valves or fire protection valves is specified, for example, by the EC79 / 2009 standard. If direct heat is applied to these safety valves (eg by flames), the gas stored in the high-pressure gas container is released into the environment. The safety valves release the gas as soon as a minimum temperature at the safety valve is exceeded. The valves are usually arranged at a distance of about 1 m from each other along the longitudinal direction of the high pressure gas container. The few valves along the large pressure vessels can only take into account a highly limited catchment area. A small local flame that acts on the tank between two valves can therefore severely damage the high-pressure gas container without the safety device being activated. Damage to the high-pressure gas container caused by the action of heat from a local flame, for example damage to the load-bearing fiber Composite, can lead to failure and in extreme cases to bursting of the high-pressure gas tank. The high-pressure gas cylinders store gases with a pressure of several hundred bar. Accordingly, the bursting of the high-pressure gas container can lead to a very dangerous damage to the entire vehicle. The fiber composite layers usually carry a major part of the load. The damage of the fiber-reinforced material layer by thermal or mechanical influences can thus quickly lead to degradation of the structural integrity or to a significant weakening of the component.

Aus der US 201 1/0079403 A1 ist eine Vorrichtung bekannt, bei der eine Hydrat aufweisende Schicht oberhalb oder unterhalb eines Hochdruckgasbehälters angeordnet ist. Gemäß dieser Schrift sind diese Schichten beabstandet von dem Hochdrucktank an einem Paneel befestigt. Die Sicherheitsventile sowie deren Zuleitung sind zwischen dem Paneel und dem Hochdruckgasbehälter angeordnet. Zur Befestigung der Sicherheitsventile sowie deren Leitungen sind Schlingen um den Hochdruckgasbehälter vorgesehen. Die Montage dieser Sicherheitsventile sowie deren Zuleitung sind aufwändig. Ferner nimmt diese Ausführung einen relativ großen Bauraum ein. Gemäß dieser Druckschrift wird der Tank dadurch geschützt, dass lokal durch Volumenzunahme der Hydrat enthaltenden Schicht die Wärme absorbiert wird. From US 201 1/0079403 A1 a device is known in which a hydrate-containing layer is arranged above or below a high-pressure gas container. According to this document, these layers are attached to a panel at a distance from the high-pressure tank. The safety valves and their supply line are arranged between the panel and the high pressure gas container. To secure the safety valves and their lines slings are provided around the high-pressure gas tank. The installation of these safety valves and their supply line are complex. Furthermore, this design takes a relatively large amount of space. According to this document, the tank is protected by locally absorbing the heat by increasing the volume of the hydrate-containing layer.

Es ist eine bevorzugte Aufgabe der hier offenbarten Technologie, die Nachteile der vorbekannten Hochdruckgasbehälter zu verringern oder abzustellen. Die Aufgabe wird gelöst durch den Gegenstand des Patentanspruchs 1. Die abhängigen Patentansprüche stellen vorteilhafte Ausgestaltungen dar. It is a preferred object of the technology disclosed herein to reduce or eliminate the disadvantages of the prior art high pressure gas containers. The object is solved by the subject matter of patent claim 1. The dependent claims represent advantageous embodiments.

Es ist offenbart eine Vorrichtung zum Schutz eines Hochdruckgasbehälters eines Kraftfahrzeuges, bspw. eines Fahrzeuges, das mit Erdgas oder Wasserstoff betankt werden kann. Die Vorrichtung weist eine intumeszente bzw. intumeszierende Schicht auf, die den Hochdruckgasbehälter zumindest teilweise bzw. zumindest in einem Bereich gegen eine Feuerquelle abschirmt. Die intumeszierende Schicht weist ferner ein intumeszierendes und keramisierendes Elastomermaterial auf. It is disclosed a device for protecting a high-pressure gas container of a motor vehicle, for example. A vehicle that can be refueled with natural gas or hydrogen. The device has an intumescent or intumescent layer which shields the high-pressure gas container at least partially or at least in one area against a fire source. The intumescent layer further comprises an intumescent and ceramizing elastomeric material.

Abschirmen bedeutet in diesem Zusammenhang, dass die intumeszierende Schicht mechanische insbesondere aber thermische Einwirkungen zumindest verringert und/oder verzögert. Mit anderen Worten bewirkt die intumeszierende Schicht, dass sich der Hochdruckgasbehälter in dem durch die intumeszierende Schicht abgeschirmten Bereich des Hochdruckgasbehäiter nicht so schnell erwärmt und/oder Stöße weniger Schaden verursachen wie in den Bereichen, in denen die intumeszierende Schicht den Hochdruckgasbehälter nicht abschirmt. Insbesondere ist die thermisch abschirmende Wirkung so, dass ein wirksamer Brandschutz entsteht, der die Wirkung des Feuers zumindest merklich hinauszögert. In this context, shielding means that the intumescent layer at least reduces mechanical but in particular thermal effects and / or delayed. In other words, the intumescent layer causes the high-pressure gas container in the shielded by the intumescent layer portion of the Hochdruckgasbehäiter not so quickly heated and / or shock cause less damage than in the areas where the intumescent layer does not shield the high-pressure gas tank. In particular, the thermal shielding effect is such that an effective fire protection is formed which at least appreciably delays the effect of the fire.

Der Begriff Intumeszenz bezeichnet generell die Ausdehnung oder die Anschwellung, also die Größenzunahme eines festen Körpers unter Temperatureinwirkung. Im Brandschutz bezeichnet der Begriff das Schwellen bzw. Aufschäumen von Materialien. Intumeszierende Materialien nehmen also unter Hitzeeinwirkung an Volumen zu und an Dichte ab. Dabei steigt das Volumen über das übliche Maß an Wärmedehnung wesentlich, oft um ein Vielfaches, an. Die physikalischen Eigenschaften ändern sich signifikant. Durch das Schwellen bzw. Aufschäumen entsteht beispielsweise eine Isolierschicht. The term intumescence generally refers to the expansion or swelling, ie the increase in size of a solid body under the influence of temperature. In fire protection, the term refers to the swelling or foaming of materials. Intumescent materials thus increase in volume and density due to heat. The volume above the usual level of thermal expansion increases significantly, often many times. The physical properties change significantly. By swelling or foaming, for example, creates an insulating layer.

In der hier offenbarten Technologie fungiert die intumeszierende Schicht als Hitzebremse und als mechanischer Schutz. Hydrate im Gegensatz zu keramisierende Elastomermaterialien können nur in einem sehr geringen Maß einen mechanischen Schutz bieten. Das keramisierende Elastomermaterial kann indes die faserverstärkten Materialschichten insbesondere im aufgeschwellten bzw. aufgeschäumten Zustand durch die entstehenden Keramikstrukturen (z.B. Pyrolyse- und Zwischenschicht) wirksam vor mechanischen Einwirkungen schützen. Dies ist vorteilhaft, da im Brandfall die Gefahr bzgl. mechanischer Einwirkungen stark erhöht ist. In the technology disclosed herein, the intumescent layer functions as a heat brake and as a mechanical protection. Hydrates, unlike ceramizing elastomeric materials, can provide mechanical protection only to a very limited extent. The ceramizing elastomeric material, however, can effectively protect the fiber-reinforced material layers, particularly in the state of being foamed or expanded, from mechanical effects by the ceramics structures which are formed (for example pyrolysis and intermediate layer). This is advantageous because in the event of fire, the risk of mechanical effects is greatly increased.

Die intumeszierende Schicht kann direkt am Hochdruckgasbehälter befestigbar sein. Beispielsweise kann die intumeszierende Schicht auf den Hochdruckgasbehälter aufgebracht sein, beispielsweise durch ein Coating-Verfahren, oder durch sonstige Befestigungsmittel direkt an dem Hochdruckgasbehälter gehalten sein, bevorzugt anliegen. In einer weiteren Ausgestaltung ist die intumeszierende Schicht mit einem geringen Abstand, bspw. weniger als 5 cm, bevorzugt weniger als 1 cm von der äußersten Schicht des Hochdruckgasbehälters beabstandet. Durch eine solche Ausgestal- tung lässt sich der Bauraum für den Hochdruckgasbehälter im Kraftfahrzeug weiter verringern. Der Spalt zwischen der intumeszierenden Schicht und äußersten Schicht des Hochdruckgasbehälters stellt eine zusätzliche Isolationsschicht dar. Insbesondere ist der Hochdruckgasbehälter bevorzugt also derart ausgestaltet, dass die Sicherheitsventile nicht durch die intumeszierende Schicht vor der Flamme abgeschirmt sind. Vorteilhaft lässt sich somit das Ansprechverhalten der Sicherheitsventile weiter verbessern. Durch das direkte Aufbringen der intumeszierenden Schicht 20 auf den Hochdruckgasbehälter lässt sich der Bauraum weiter reduzieren. Die intumeszierende Schicht kann die Hälfte, bevorzugt zumindest mindestens 75% des Umfangs des Hochdruckgasbehälters umschließen. Somit kann das Gewicht weiter reduziert werden. Zudem verringern sich die Materialkosten für das keramisierende Elastomermaterial. The intumescent layer can be fastened directly to the high pressure gas container. For example, the intumescent layer can be applied to the high-pressure gas container, for example by means of a coating method, or held by other fastening means directly on the high-pressure gas container, preferably abutting. In a further embodiment, the intumescent layer is at a small distance, for example. Less than 5 cm, preferably less than 1 cm from the outermost layer of the high pressure gas container spaced. By such an embodiment tion, the installation space for the high-pressure gas container in the motor vehicle can be further reduced. The gap between the intumescent layer and outermost layer of the high-pressure gas container constitutes an additional insulation layer. In particular, the high-pressure gas container is preferably configured such that the safety valves are not shielded by the intumescent layer in front of the flame. Advantageously, thus, the response of the safety valves can be further improved. The direct application of the intumescent layer 20 to the high pressure gas container, the space can be further reduced. The intumescent layer may enclose half, preferably at least 75% of the circumference of the high-pressure gas container. Thus, the weight can be further reduced. In addition, the material costs for the ceramizing elastomer material are reduced.

Vorteilhaft weist die intumeszierende Schicht eine Wandstärke von 0,1 mm bis 20 mm, bevorzugt von 2 mm bis 10 mm, und besonders bevorzugt von 3 mm bis 6 mm auf. Eine solche Ausgestaltung der intumeszierenden Schicht weist ein günstiges Verhältnis von Gewicht zu abschirmender Wirkung auf. Advantageously, the intumescent layer has a wall thickness of 0.1 mm to 20 mm, preferably from 2 mm to 10 mm, and particularly preferably from 3 mm to 6 mm. Such a configuration of the intumescent layer has a favorable ratio of weight to shielding effect.

Vorteilhaft dehnt sich die intumeszierende Schicht zumindest um das 2-fache, bevorzugt zumindest um 5-fache, ferner bevorzugt zumindest um das 10-fache und besonders bevorzugt um ca. das 20-fache bis 30-fache ihrer ursprünglichen Wanddicke aus. Advantageously, the intumescent layer expands at least 2 times, preferably at least 5 times, more preferably at least 10 times, and most preferably about 20 times to 30 times its original wall thickness.

Das keramisierende Elastomermaterial kann eine sinternde und/oder verglasende Komponente umfassen. Ferner kann das keramisierende Elastomermaterial ein Metalloxid als Füllstoff aufweisen. Beispielsweise kann das Elastomermaterial eines der folgenden Komponenten aufweisen: Si02, Ti02, Al203, und/oder SiC. Ein solches Material weist eine gesteigerte Festigkeit im intumeszierten Zustand auf. Ferner kann das Elastomermaterial ein katalytisch wirksamen Bestandteil, beispielsweise B203 oder Eisenverbindungen aufweisen. Somit lassen sich bevorzugt die Sintertemperaturen reduzieren. Keramisierende Elastomermaterialien sind beispielsweise bereits in der EP0878520 gezeigt. Bevorzugt ist das Sicherheitsventil auf der Außenseite der intumeszierenden Schicht angeordnet. Mit anderen Worten ist auf der einen Seite der intumeszierenden Schicht der Liner des Hochdruckgasbehälters angeordnet und auf der anderen Seite das Sicherheitsventil. The ceramizing elastomeric material may comprise a sintering and / or vitrifying component. Further, the ceramizing elastomeric material may comprise a metal oxide filler. For example, the elastomeric material may have one of the following components: Si0 2 , Ti0 2 , Al 2 0 3 , and / or SiC. Such a material has an increased strength in the intumescent state. Furthermore, the elastomeric material may comprise a catalytically active ingredient, for example B 2 O 3 or iron compounds. Thus, it is preferable to reduce the sintering temperatures. Ceramizing elastomeric materials are already shown for example in EP0878520. Preferably, the safety valve is arranged on the outside of the intumescent layer. In other words, the liner of the high-pressure gas container is arranged on one side of the intumescent layer and the safety valve on the other side.

Die hier offenbarte Technologie umfasst ebenfalls einen Hochdruckgasbehälter mit der hierin beschriebenen Vorrichtung zum Schutz des Hochdruckgasbehälters. The technology disclosed herein also includes a high pressure gas container with the apparatus for protecting the high pressure gas container described herein.

Bevorzugt weist der Hochdruckgasbehälter eine faserverstärkte Schicht auf. Die faserverstärkte Schicht kann einen Liner, beispielsweise aus Aluminium, des Behälters umschließen. Als faserverstärkte Kunststoffe kommen bspw. CFK und GFK zum Einsatz. Vorteilhaft ist die intumeszierende Schicht auf der äußeren Oberfläche der faserverstärkten Schicht zumindest teilweise aufgebracht. The high-pressure gas container preferably has a fiber-reinforced layer. The fiber reinforced layer may enclose a liner, such as aluminum, of the container. For example, CFRP and GFRP are used as fiber-reinforced plastics. Advantageously, the intumescent layer is at least partially applied to the outer surface of the fiber-reinforced layer.

Die hier offenbarte Technologie umfasst bevorzugt ein Verfahren zur Herstellung des hier offenbarten Hochdruckbehälters. Das Verfahren weist bevorzugt die folgenden Schritte auf: The technology disclosed herein preferably includes a method of making the high pressure container disclosed herein. The method preferably comprises the following steps:

- Bereitstellen eines Kerns eines Hochdruckgasbehälters; - Providing a core of a high pressure gas container;

- Bereitstellen der intumeszierenden Schicht; und/oder - Providing the intumescent layer; and or

Aufbringen der intumeszierenden Schicht auf den Kern durch ein Coating- Verfahren. Applying the intumescent layer on the core by a coating process.

Als Kern ist hier der Liner des Hochdruckgasbehälters samt etwaiger zusätzlichen Materialschichten, beispielsweiser einer faserverstärkten Materialschicht, anzusehen. Die hier offenbarte Technologie wird nun anhand der folgenden Figuren beispielhaft beschrieben, wobei The core here is the liner of the high-pressure gas container together with any additional material layers, for example a fiber-reinforced material layer. The technology disclosed herein will now be described by way of example with reference to the following figures, in which:

Fig. 1 eine Querschnittszeichnung eines Hochdruckgasbehälters, und Fig. 1 is a cross-sectional drawing of a high pressure gas container, and

Fig. 2 eine vergrößerte Ansicht des Details A der Fig. 1 zeigen. Fig. 2 shows an enlarged view of the detail A of Fig. 1.

Fig. 1 zeigt eine Querschnittsansicht des Hochdruckgasbehälters 10. Der Kern 12 des Hochdruckgasbehälters 10 umfasst einen Liner 16, hier bspw. einen Aluminium- liner 16 sowie eine faserverstärkte Schicht 14, die den Liner 16 umgibt und die Festigkeit des Hochdruckgasbehälters 10 steigert. Auf diesen Kern 12 ist hier die intumeszierende Schicht 20 aufgebracht. Die intumeszierende Schicht 20 liegt hier direkt an dem Kern 12 an. Die intumeszierende Schicht 20 ist hier als ein intumeszierendes keramisierendes Elastomermaterial ausgeführt. Die Sicherheitsventile 40 sind entlang der Längsachse des Hochdruckgasbehälters 10 jeweils 1 m voneinander beabstandet und mit dem Einlass 18 des Hochdruckgasbehälters durch die Verbindungsleitung 42 verbunden. Der Pfeil F stellt eine lokale thermische Hitzeeinwirkung dar, die vom Sicherheitsventil 40 beabstandet auftritt. Das Sicherheitsventil 40 wird hier nicht durch die Abschirmung 20 gegen die eintreffende Hitze abgeschirmt. Das Ventil 40 löst daher vergleichsweise schnell aus. 1 shows a cross-sectional view of the high-pressure gas container 10. The core 12 of the high-pressure gas container 10 comprises a liner 16, here, for example, an aluminum liner 16 and a fiber reinforced layer 14 surrounding the liner 16 and increasing the strength of the high pressure gas container 10. On this core 12, the intumescent layer 20 is applied here. The intumescent layer 20 lies directly against the core 12 here. The intumescent layer 20 is embodied here as an intumescent ceramizing elastomer material. The safety valves 40 are each spaced 1 m apart along the longitudinal axis of the high-pressure gas container 10 and connected to the inlet 18 of the high-pressure gas container through the connecting line 42. The arrow F represents a local thermal heat action, which occurs at a distance from the safety valve 40. The safety valve 40 is not shielded by the shield 20 against the incoming heat here. The valve 40 therefore triggers comparatively quickly.

In Fig. 2 ist das Detail A der Fig. 1 dargestellt. Es ist der Schichtaufbau des Hochdruckgasbehälters 10 umfassend den Liner 16, die faserverstärkte Schicht 14 und die intumeszierende Schicht 20 erkennbar. Das Befestigungselement 30 ist mit dem Sicherheitsventil 40 verbunden und befestigt dieses. Eine Halterung der Sicherheitsventile 40 oder des Befestigungselements 30 kann über ein Spannband erfolgen. Fig. 3 zeigt die Einbausituation des Hochdruckgasbehälters 10 in einem Fahrzeug. Der Hochdruckgasbehälter 10 ist hier zwischen den Rädern 54 in einem Tunnel 50 angeordnet. Die intumeszierende Schicht 20 ist hier bogenförmig angeordnet und umschließt den Kern 12 des Hochdruckgasbehälters 10 zumindest teilweise dicht anliegend. Auf der Außenseite der intumeszierenden Schicht 20 ist ein Sicherheitsventil 40 sichtbar, welches der Fahrbahn zugewandt ist. Die intumeszierende Schicht 20 schützt den Hochdruckgasbehälter 10 vor thermischen und/oder mechanischen Einflüssen, die hier bspw. von Gegenständen, die sich zwischen Fahrzeugboden und Fahrbahn befinden, hervorgerufen werden. In Fig. 2, the detail A of Fig. 1 is shown. The layer structure of the high-pressure gas container 10 comprising the liner 16, the fiber-reinforced layer 14 and the intumescent layer 20 can be seen. The fastener 30 is connected to the safety valve 40 and secured thereto. A holder of the safety valves 40 or 30 of the fastener can be done via a strap. 3 shows the installation situation of the high-pressure gas container 10 in a vehicle. The high-pressure gas container 10 is arranged here between the wheels 54 in a tunnel 50. The intumescent layer 20 is arranged here arcuately and surrounds the core 12 of the high-pressure gas container 10 at least partially tight-fitting. On the outside of the intumescent layer 20, a safety valve 40 is visible, which faces the roadway. The intumescent layer 20 protects the high-pressure gas container 10 from thermal and / or mechanical influences, which are caused here, for example, by objects which are located between the vehicle floor and the roadway.

Ferner kann anstatt einer im Querschnitt C-förmigen oder rohrförmigen intumeszierenden Schicht 20 auch eine als Paneel ausgestaltete intumeszierende Schicht 20 vorgesehen sein, das bevorzugt unterhalb des Fahrzeugbodens befestigt ist. Furthermore, instead of a cross-sectionally C-shaped or tubular intumescent layer 20, an intumescent layer 20 designed as a panel may also be provided, which is preferably fastened below the vehicle floor.

Claims

Patentansprüche claims 1. Vorrichtung zum Schutz eines Hochdruckgasbehälters (10) eines Kraftfahrzeugs, umfassend eine intumeszierende Schicht (20), die derart angeordnet und ausgebildet ist, dass die intumeszierende Schicht (20) den Hochdruckgasbehälter (10) zumindest teilweise abschirmt, dadurch gekennzeichnet, dass die intumeszierende Schicht (20) ein keramisierendes Elastomermaterial aufweist. Anspruch [en] A device for protecting a high pressure gas container (10) of a motor vehicle, comprising an intumescent layer (20) arranged and configured such that the intumescent layer (20) at least partially shields the high pressure gas container (10), characterized in that the intumescent Layer (20) comprises a ceramizing elastomeric material. 2. Vorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass die 2. Apparatus according to claim 1, characterized in that the intumeszierende Schicht (20) direkt am Hochdruckgasbehälter (10) befestigbar ist und/oder am Hochdruckgasbehälter (10) zumindest teilweise anliegt.  intumescent layer (20) directly on the high-pressure gas container (10) can be fastened and / or at least partially abuts the high-pressure gas container (10). 3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das 3. Apparatus according to claim 1 or 2, characterized in that the keramisierende Elastomermaterial eine sinternde und/oder verglasende Komponente umfasst.  ceramicizing elastomeric material comprises a sintering and / or vitrifying component. 4. Vorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die intumeszierende Schicht (20) den Kraftstofftank im Querschnitt zumindest zur Hälfte umschließt. 4. Device according to one of the preceding claims, characterized in that the intumescent layer (20) surrounds the fuel tank in cross section at least halfway. 5. Vorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die intumeszierende Schicht (20) als Coating aufgebracht ist. 5. Device according to one of the preceding claims, characterized in that the intumescent layer (20) is applied as a coating. 6. Vorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass die intumeszierende Schicht (20) eine Wandstärke von 0,1 mm bis 20 mm, bevorzugt von 1 mm bis 10 mm, und besonders bevorzugt von 2 mm bis 3 mm aufweist. 6. Device according to one of the preceding claims, characterized in that the intumescent layer (20) has a wall thickness of 0.1 mm to 20 mm, preferably from 1 mm to 10 mm, and particularly preferably from 2 mm to 3 mm. 7. Vorrichtung nach einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass das keramisierende Elastomermaterial ein Metalloxid als Füllstoff aufweist. 7. Device according to one of the preceding claims, characterized in that the ceramizing elastomeric material has a metal oxide as a filler. 8. Hochdruckgasbehälter (10) für ein Kraftfahrzeug, umfassend eine Vorrichtung zum Schutz des Hochdruckgasbehälter (10) nach einem der vorherigen Ansprüche. 8. high-pressure gas container (10) for a motor vehicle, comprising a device for protecting the high-pressure gas container (10) according to one of the preceding claims. 9. Hochdruckgasbehälter (10) nach Anspruch 8, dadurch gekennzeichnet, dass der Hockdruckgasbehälter eine faserverstärkte Schicht (14) aufweist, wobei die intumeszierende Schicht (20) die faserverstärkte Schicht (14) zumindest teilweise umgibt. 9. High-pressure gas container (10) according to claim 8, characterized in that the high-pressure gas container has a fiber-reinforced layer (14), wherein the intumescent layer (20) at least partially surrounds the fiber-reinforced layer (14). 10. Verfahren zur Herstellung eines Hochdruckgasbehälter (10) nach Anspruch 8 oder 9, gekennzeichnet durch die Schritte; 10. A method for producing a high-pressure gas container (10) according to claim 8 or 9, characterized by the steps; Bereitstellen eines Kerns (12) des Hochdruckgasbehälter ( 0) ; Bereitstellen einer intumeszierenden Schicht (20) nach einem der Ansprüche 1 bis 7; und Providing a core (12) of the high-pressure gas container (0); Providing an intumescent layer (20) according to any one of claims 1 to 7; and Aufbringen der intumeszierende Schicht (20) auf den Kern (12) durch ein Coating-Verfahren.  Applying the intumescent layer (20) to the core (12) by a coating process.
PCT/EP2015/065180 2014-07-11 2015-07-03 Device for protecting a high-pressure gas reservoir of a motor vehicle, high-pressure gas reservoir for a motor vehicle and method for the production of a high-pressure gas reservoir Ceased WO2016005279A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014213583.4 2014-07-11
DE102014213583.4A DE102014213583A1 (en) 2014-07-11 2014-07-11 Device for protecting a high pressure gas container of a motor vehicle, high pressure gas container for a motor vehicle and method for producing a high pressure gas container

Publications (1)

Publication Number Publication Date
WO2016005279A1 true WO2016005279A1 (en) 2016-01-14

Family

ID=53540737

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/065180 Ceased WO2016005279A1 (en) 2014-07-11 2015-07-03 Device for protecting a high-pressure gas reservoir of a motor vehicle, high-pressure gas reservoir for a motor vehicle and method for the production of a high-pressure gas reservoir

Country Status (2)

Country Link
DE (1) DE102014213583A1 (en)
WO (1) WO2016005279A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019220512A1 (en) * 2019-12-23 2021-06-24 Robert Bosch Gmbh Process for producing a component for storing or distributing compressed gas and a component for storing or distributing compressed gas
CN112489828B (en) * 2020-11-26 2024-03-01 中广核研究院有限公司 Shielding and cladding device for compactly arranging small-sized stacks with large expansion difference

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4085860A (en) * 1976-05-20 1978-04-25 Brunswick Corporation Thermal protection system for filament wound pressure vessels
GB2016670A (en) * 1978-03-20 1979-09-26 Explosafe Sa Storage Vessels
GB2038664A (en) * 1978-11-02 1980-07-30 Expanded Metal Heat barrier
FR2748942A1 (en) * 1996-05-25 1997-11-28 Nullifire Ldt Fire-resistant container for liquefied gas bottle
EP0878520A2 (en) * 1997-05-12 1998-11-18 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Composition for refractory, pyrolitically ceramic forming coatings
WO1999003792A1 (en) * 1997-07-17 1999-01-28 Nu-Chem, Inc. Methods of making high-temperature glass fiber and thermal protective structures
FR2987367A1 (en) * 2012-02-28 2013-08-30 Commissariat Energie Atomique FIRE PROTECTIVE MATERIAL, HIGH PRESSURE STORAGE TANK COATED WITH SUCH MATERIAL, PROCESSES FOR THEIR PREPARATION AND USES THEREOF

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4023310A1 (en) * 1990-07-21 1992-01-23 Bayer Ag INTUMESCENT CARRIERS AND THEIR USE
ITRM20040462A1 (en) * 2004-09-28 2004-12-28 M E Rin S R L FIRE-RESISTANT FLEXIBLE TANK STRUCTURE.
US7360605B2 (en) * 2005-03-22 2008-04-22 Ford Global Technologies, Llc Thermally protected reservoir for onboard fire suppression system
WO2007044497A2 (en) * 2005-10-05 2007-04-19 Ohnstad Thomas S Multi-function surface-coating fire and fuel-leakage inhibition
KR101113577B1 (en) 2009-10-01 2012-02-22 기아자동차주식회사 Fire safety apparatus of high-pressure gas fuel tank

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4085860A (en) * 1976-05-20 1978-04-25 Brunswick Corporation Thermal protection system for filament wound pressure vessels
GB2016670A (en) * 1978-03-20 1979-09-26 Explosafe Sa Storage Vessels
GB2038664A (en) * 1978-11-02 1980-07-30 Expanded Metal Heat barrier
FR2748942A1 (en) * 1996-05-25 1997-11-28 Nullifire Ldt Fire-resistant container for liquefied gas bottle
EP0878520A2 (en) * 1997-05-12 1998-11-18 Fraunhofer-Gesellschaft Zur Förderung Der Angewandten Forschung E.V. Composition for refractory, pyrolitically ceramic forming coatings
WO1999003792A1 (en) * 1997-07-17 1999-01-28 Nu-Chem, Inc. Methods of making high-temperature glass fiber and thermal protective structures
FR2987367A1 (en) * 2012-02-28 2013-08-30 Commissariat Energie Atomique FIRE PROTECTIVE MATERIAL, HIGH PRESSURE STORAGE TANK COATED WITH SUCH MATERIAL, PROCESSES FOR THEIR PREPARATION AND USES THEREOF

Also Published As

Publication number Publication date
DE102014213583A1 (en) 2016-01-14

Similar Documents

Publication Publication Date Title
EP3167223B1 (en) Device for protecting a high-pressure gas tank in a motor vehicle, high-pressure gas tank for a motor vehicle, and method for the production of a high-pressure gas tank
DE69408731T2 (en) Storage tanks for hydrocarbons under pressure
WO2023006869A1 (en) Pressure vessel, pressure vessel system, motor vehicle and method for forming ribs
DE102014009343B4 (en) pressure vessel
DE102014217515B4 (en) Device for protecting a high-pressure gas tank of a motor vehicle
DE102015212979A1 (en) High-pressure gas container for a motor vehicle and motor vehicle with at least one high-pressure gas container
DE102020127874B4 (en) Method for producing a container
DE102009029245B4 (en) Aircraft tank
DE102017214301A1 (en) Motor vehicle with fire protection material
DE102004001081B4 (en) Insulation structure for the internal insulation of a vehicle
DE102006026118A1 (en) Mounting arrangement for gas tank of a motor vehicle
DE102013016036A1 (en) Device for storing gas under high pressure
WO2016005279A1 (en) Device for protecting a high-pressure gas reservoir of a motor vehicle, high-pressure gas reservoir for a motor vehicle and method for the production of a high-pressure gas reservoir
DE202016008551U1 (en) gas cylinders
WO2008064853A1 (en) Device for equalizing pressure surges in closed systems, such as silos or the like
EP2146859B1 (en) Motor vehicle with at least a gaseous fuel tank
DE102015016699A1 (en) Compressed gas containers
WO2005115551A1 (en) Fire-retarding device on storage tanks
DE102017203093A1 (en) Pressure vessel assembly and vehicle with the pressure vessel assembly
DE102016220148A1 (en) Pressure vessel with a pipe surrounding the container and manufacturing process
DE102015203248A1 (en) Safety valve for a pressure vessel and pressure vessel
WO2022228838A2 (en) Fuel line comprising insulation, and pressure vessel system
DE102017217343A1 (en) Motor vehicle with opening for pressure relief
DE102020123038A1 (en) pressure vessel assembly
DE102014221530A1 (en) Pressurized gas tank with partial volumes provided in the tank storage space

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15736229

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15736229

Country of ref document: EP

Kind code of ref document: A1