EP1286103A2 - High pressure gas vessel - Google Patents

High pressure gas vessel Download PDF

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Publication number
EP1286103A2
EP1286103A2 EP02015922A EP02015922A EP1286103A2 EP 1286103 A2 EP1286103 A2 EP 1286103A2 EP 02015922 A EP02015922 A EP 02015922A EP 02015922 A EP02015922 A EP 02015922A EP 1286103 A2 EP1286103 A2 EP 1286103A2
Authority
EP
European Patent Office
Prior art keywords
partition
pressure
container
container according
pressure vessels
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.)
Granted
Application number
EP02015922A
Other languages
German (de)
French (fr)
Other versions
EP1286103B1 (en
EP1286103A3 (en
Inventor
Christoph Heep
Andreas Jauss
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.)
GM Global Technology Operations LLC
Original Assignee
EOn Ruhrgas AG
Adam Opel GmbH
Ruhrgas 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
Priority claimed from DE10149701A external-priority patent/DE10149701A1/en
Application filed by EOn Ruhrgas AG, Adam Opel GmbH, Ruhrgas AG filed Critical EOn Ruhrgas AG
Publication of EP1286103A2 publication Critical patent/EP1286103A2/en
Publication of EP1286103A3 publication Critical patent/EP1286103A3/en
Application granted granted Critical
Publication of EP1286103B1 publication Critical patent/EP1286103B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/14—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of aluminium; constructed of non-magnetic steel
    • 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
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
    • 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
    • F17C2201/0147—Shape complex
    • F17C2201/0152—Lobes
    • 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
    • F17C2201/0147—Shape complex
    • F17C2201/0166—Shape complex divided in several chambers
    • 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
    • F17C2201/0147—Shape complex
    • F17C2201/0171—Shape complex comprising a communication hole between chambers
    • 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
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0617—Single wall with one layer
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • 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
    • 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
    • F17C2209/221—Welding
    • 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
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength
    • 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
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/012—Reducing weight
    • 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
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/018—Adapting dimensions
    • 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
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • F17C2270/0178—Cars

Definitions

  • the invention relates to a container for storing gas under high pressure, in particular of natural gas, with at least two pressure vessels that form one structural unit are connected, wherein at least one pressure vessel a nozzle for loading and unloading having.
  • Such containers are used in particular in natural gas vehicles.
  • the operating pressure of the containers is very high at around 200 bar, so the containers are out high pressure resistant material, especially metal.
  • cylindrical steel bottles are known in practice. Depending on the amount of gas to be stored, several bottles are used each have a nozzle or valve attachment for loading and unloading. The Space requirements for such bundles of bottles are relatively high. They are also shape-changing Pressure vessel made of plastic known. Several pressure vessels are next to each other arranged and held together by means of a common covering, that there is a smaller pack size than with individual cylindrical bottles.
  • pressure vessel in the form of cylindrical bottles into one unit are connected, they are each hydraulically independent individual containers. Each individual pressure vessel accordingly requires a nozzle or Valve connection for loading or unloading. The valve connections cause additional Effort and are unfavorable for optimal use of space.
  • the object of the invention is therefore to create a container which, on the one hand has the necessary strength to store gas under high pressure and which, on the other hand, enables better use of space in cars.
  • any number of pressure vessels can be combined to form a one-piece vessel get connected.
  • the partition wall proves that the container is under the influence the high pressure of about 200 bar remains dimensionally stable. Via the passage opening in the partition is balanced between the pressure vessels.
  • the partition is not subject to any bending stress, since it is the same on both sides Internal pressure is loaded. This creates a container with a honeycomb structure, which enables a good use of space.
  • the nozzle for loading and unloading can be arranged in a location that is favorable in terms of space utilization.
  • the container is also characterized by the fact that, in principle, no higher one Membrane stress level is present than in the known cylindrical Pressure vessels, d. H. the container is essentially free under internal pressure of bending moments. This avoids high loads and the container can be built weight-optimized.
  • the partition is essentially flat and points to it Edge on both sides of approaches that run at an angle to the partition.
  • the Transitional areas between the approaches and the partition are rounded. By choosing the appropriate radii, this can be done at the transition points Membrane tension level is positively influenced or adjusted accordingly.
  • the Y-shaped shape of the partition in the edge area has the advantage that the Approaches with the container walls facing them form joints that by means of Thin gap technology can be welded. This enables the use of high-strength relatively thin-walled steel sheet.
  • the wall thickness of the welded The container is therefore not greater than the wall thickness of the known seamless cylindrical bottles.
  • a compression preferably a cold compression
  • a preferred embodiment is characterized in that the pressure vessel an essentially cylindrical container wall with a segment of a circle Have cross-section and that essentially on both sides of the container wall Connect hemispherical spherical bottoms.
  • pressure vessels are not of the same length and / or have different cross sections.
  • the outer shape of the container can thus be adapted very variably to the vehicle structure.
  • the partition is at least at one end curved in such a way that the end regions are adjacent for different lengths Pressure vessels are connectable. This makes it possible to cut the end of the shorter one Pressure vessel with a non-aligned end of the adjacent pressure vessel in compliance with the structurally favorable membrane tension level, or Membrane tension state to connect.
  • Each pressure vessel is preferably provided with an inspection opening.
  • the inspection openings can be in the form of Pipe socket may be arranged. These can also be used to hold the container become.
  • the inventive method for producing a container for storing Gas under high pressure, especially natural gas with at least two pressure vessels wherein at least one pressure vessel is provided with a nozzle for loading and unloading is characterized in that the pressure vessel is cylindrical Have container wall with a circular segment-shaped cross section to which in a first step, spherical bottoms are welded on both sides. Then the Container wall and the spherical bottoms of neighboring pressure vessels over a common partition welded together, preferably by means of Thin gap technology.
  • the invention is based on a preferred embodiment of the container according to the invention explained in connection with the drawing.
  • FIG. 1 shows a container which consists of three pressure containers 1.
  • the container is there Made of high-strength sheet metal, namely water-tempered fine-grained steel.
  • the pressure vessels 1 each have a cylindrical vessel wall 2 with a circular segment-shaped cross section.
  • the container wall 2 became cold rolled or pressed onto the steel sheet. It is also possible to remove the container wall 2 cut out a pipe.
  • On the container wall 2 close in the front essential semicircular spherical bottoms 3, which are also made of high-strength cold pressed steel sheet.
  • a spherical bottom 3 has a nozzle 4 for loading and Unload on.
  • the container wall 2 is welded to the spherical bottoms 3, preferably by means of thin gap technology, in particular laser welding.
  • a flat partition 5 is located between two pressure vessels 1.
  • the partition 5 also consists of Sheet steel.
  • approaches 7 are formed on both sides.
  • the cut surface of the partition is thus Y-shaped in the area of the edge. (Fig. 3 and Fig. 4).
  • the lugs 7 diverge circumferentially so obliquely outwards that the approaches with the walls of the Pressure vessel to form 1 joints.
  • the transition areas are inside rounded.
  • the approaches 7 are preferably produced by cold upsetting.
  • the approaches 7 run at an angle to the partition, the angles of each Both approaches can be of different sizes and chosen so that the Approaches 7 with the walls of the pressure vessel 1 abut.
  • the approaches 7 at the edge of the partition 5 it becomes possible to use the individual parts To weld thin gap technology.
  • the Melted edges of the parts to be connected and bonded.
  • This technique is particularly suitable for welding high-strength materials with thin walls. The heat input into the material is low, so that hardly any welding distortion occurs. In addition, a large-volume weld, at the relatively large amounts of foreign material must be avoided.
  • Each partition 5 has a passage opening 6, so that when filling Pressure equalization between the pressure vessels 1 arises.
  • FIG. 5 is a container with two pressure containers 1 of equal length and a shorter one Pressure vessel 1a shown.
  • the partition 5a between the pressure vessel 1 and the shorter pressure vessel 1a is shown in Fig. 6.
  • the ends of the partition 5a are simply curved, similar to a ski tip. Every pressure vessel is not with one provided inspection opening provided.
  • Pressure vessel 1 have a different cross-sectional shape.
  • the pressure vessel 1 can have a different cross-section.
  • the partition can be 5 a Have a large number of passage openings 6, so that a lattice structure is formed.

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

Abstract

The container to hold a gas under very high pressures, and especially natural gas, is composed of two cylindrical pressure containers (1) bonded together to form a container unit. At least one of the containers has a connector (4), to fill and empty it. The container sections are welded together, by a thin gap technique, at a common dividing wall (5) which has at least one passage opening (6) for the gas.

Description

Die Erfindung betrifft einen Behälter zum Speichern von Gas unter hohem Druck, insbesondere von Erdgas, mit mindestens zwei Druckbehältern, die zu einer Baueinheit verbunden sind, wobei mindestens ein Druckbehälter einen Stutzen zum Be- und Entladen aufweist.The invention relates to a container for storing gas under high pressure, in particular of natural gas, with at least two pressure vessels that form one structural unit are connected, wherein at least one pressure vessel a nozzle for loading and unloading having.

Derartige Behälter werden insbesondere in erdgasbetriebenen Fahrzeugen eingesetzt. Der Betriebsdruck der Behälter ist mit etwa 200 bar sehr hoch, so dass die Behälter aus hochdruckfestem Material, insbesondere Metall bestehen müssen.Such containers are used in particular in natural gas vehicles. The operating pressure of the containers is very high at around 200 bar, so the containers are out high pressure resistant material, especially metal.

Aus der Praxis ist die Verwendung von zylinderförmigen Flaschen aus Stahl bekannt. Je nach Menge des zu speichernden Gases werden mehrere Flaschen eingesetzt, die jeweils einen Stutzen bzw. Ventilansatz zum Be- und Entladen aufweisen. Der Platzbedarf derartiger Flaschenbündel ist relativ hoch. Es sind auch formveränderliche Druckbehälter aus Kunststoff bekannt. Mehrere Druckbehälter werden nebeneinander angeordnet und mittels einer gemeinsamen Umhüllung derart zusammen gehalten, dass ein kleineres Packmaß vorliegt als bei einzelnen zylindrischen Flaschen.The use of cylindrical steel bottles is known in practice. Depending on the amount of gas to be stored, several bottles are used each have a nozzle or valve attachment for loading and unloading. The Space requirements for such bundles of bottles are relatively high. They are also shape-changing Pressure vessel made of plastic known. Several pressure vessels are next to each other arranged and held together by means of a common covering, that there is a smaller pack size than with individual cylindrical bottles.

Obwohl die Druckbehälter in Form von zylindrischen Flaschen zu einer Baueinheit verbunden sind, handelt es sich jeweils um hydraulisch unabhängige Einzelbehälter. Jeder einzelne Druckbehälter benötigt dementsprechend einen Stutzen bzw. Ventilanschluss zum Be- oder Entladen. Die Ventilanschlüsse verursachen zusätzlichen Aufwand und sind ungünstig für eine optimale Raumausnutzung.Although the pressure vessel in the form of cylindrical bottles into one unit are connected, they are each hydraulically independent individual containers. Each individual pressure vessel accordingly requires a nozzle or Valve connection for loading or unloading. The valve connections cause additional Effort and are unfavorable for optimal use of space.

Der Erfindung liegt daher die Aufgabe zugrunde, einen Behälter zu schaffen, der einerseits die notwendige Festigkeit zum Speichern von Gas unter hohem Druck aufweist und der andererseits eine bessere Raumausnutzung in Pkws ermöglicht.The object of the invention is therefore to create a container which, on the one hand has the necessary strength to store gas under high pressure and which, on the other hand, enables better use of space in cars.

Die Aufgabe wird durch einen Behälter mit den Merkmalen des Anspruches 1 gelöst.The object is achieved by a container with the features of claim 1.

Beliebig viele Druckbehälter können miteinander zu einem einstückigen Behälter verbunden werden. Die Trennwand bewährleistet, dass der Behälter unter dem Einfluss des hohen Druckes von etwa 200 bar formstabil bleibt. Über die Durchtrittsöffnung in der Trennwand findet ein Druckausgleich zwischen den Druckbehältern statt. Die Trennwand unterliegt keiner Biegebelastung, da sie beidseitig durch den gleichen Innendruck belastet ist. Es entsteht somit ein Behälter mit einer wabenartigen Struktur, die eine gute Raumausnutzung ermöglicht. Der Stutzen zum Be-und Entladen kann an einer Stelle angeordnet werden, die im Hinblick auf die Raumausnutzung günstig ist.Any number of pressure vessels can be combined to form a one-piece vessel get connected. The partition wall proves that the container is under the influence the high pressure of about 200 bar remains dimensionally stable. Via the passage opening in the partition is balanced between the pressure vessels. The The partition is not subject to any bending stress, since it is the same on both sides Internal pressure is loaded. This creates a container with a honeycomb structure, which enables a good use of space. The nozzle for loading and unloading can be arranged in a location that is favorable in terms of space utilization.

Der Behälter zeichnet sich auch dadurch aus, dass prinzipiell kein höheres Membranspannungsniveau vorliegt als bei den bekannten zylindrischen Druckbehältern, d. h. der Behälter ist unter Innendruckbelastung im wesentlichen frei von Biegemomenten. Damit werden hohe Belastungen vermieden und der Behälter kann gewichtsoptimiert gebaut werden.The container is also characterized by the fact that, in principle, no higher one Membrane stress level is present than in the known cylindrical Pressure vessels, d. H. the container is essentially free under internal pressure of bending moments. This avoids high loads and the container can be built weight-optimized.

Vorzugsweise ist die Trennwand im Wesentlichen eben ausgebildet und weist an ihrem Rand beidseitig Ansätze auf, die in einem Winkel zur Trennwand verlaufen. Die Übergangsbereiche zwischen den Ansätzen und der Trennwand sind abgerundet. Durch eine entsprechende Wahl der Radien kann an den Übergangsstellen das Membranspannungsniveau positiv beeinflusst bzw. entsprechend eingestellt werden.Preferably, the partition is essentially flat and points to it Edge on both sides of approaches that run at an angle to the partition. The Transitional areas between the approaches and the partition are rounded. By choosing the appropriate radii, this can be done at the transition points Membrane tension level is positively influenced or adjusted accordingly.

Die Y-förmige Formgebung der Trennwand im Randbereich hat den Vorteil, dass die Ansätze mit den ihnen zugewandten Behälterwänden Stossstellen bilden, die mittels Dünnspalttechnik verschweißt werden können. Dies ermöglicht die Verwendung von hochfestem relativ dünnwandigem Stahlblech. Die Wanddicke des geschweißten Behälters ist daher nicht größer als die Wanddicke der bekannten nahtlosen zylinderförmigen Flaschen.The Y-shaped shape of the partition in the edge area has the advantage that the Approaches with the container walls facing them form joints that by means of Thin gap technology can be welded. This enables the use of high-strength relatively thin-walled steel sheet. The wall thickness of the welded The container is therefore not greater than the wall thickness of the known seamless cylindrical bottles.

Herstellungstechnisch ist es besonders vorteilhaft, den Rand der Trennwand mittels einer Stauchung, vorzugsweise einer Kaltstauchung, zu beidseitigen Ansätzen zu verformen.In terms of production technology, it is particularly advantageous to use the edge of the partition a compression, preferably a cold compression, to approaches on both sides deform.

Eine bevorzugte Ausführungsform ist dadurch gekennzeichnet, dass die Druckbehälter eine im Wesentlichen zylinderförmige Behälterwand mit einem kreissegmentförmigen Querschnitt aufweisen und dass sich an die Behälterwand beidseitig im Wesentlichen halbkugelförmige Kugelböden anschließen.A preferred embodiment is characterized in that the pressure vessel an essentially cylindrical container wall with a segment of a circle Have cross-section and that essentially on both sides of the container wall Connect hemispherical spherical bottoms.

Eine vorteilhafte Ausgestaltung besteht darin, die Druckbehälter ungleich lang sind und/oder unterschiedliche Querschnitte aufweisen. Die äußere Form des Behälters kann somit sehr variabel an die Fahrzeugstruktur angepasst werden.An advantageous embodiment is that the pressure vessels are not of the same length and / or have different cross sections. The outer shape of the container can thus be adapted very variably to the vehicle structure.

Bei ungleich langen Druckbehältern ist die Trennwand wenigstens an einem Ende derart gekrümmt, dass die Endbereiche unterschiedlich langer benachbarter Druckbehälter verbindbar sind. Dadurch wird es möglich, den Endbereichs des kürzeren Druckbehälters mit einem nicht fluchtenden Ende des benachbarten Druckbehälters unter Einhaltung des strukturmechanisch günstigen Membranspannungsniveaus, bzw. Membranspannungszustandes, zu verbinden.If the pressure vessels are of different lengths, the partition is at least at one end curved in such a way that the end regions are adjacent for different lengths Pressure vessels are connectable. This makes it possible to cut the end of the shorter one Pressure vessel with a non-aligned end of the adjacent pressure vessel in compliance with the structurally favorable membrane tension level, or Membrane tension state to connect.

Vorzugsweise ist jeder Druckbehälter mit einem Revisionsöffnung versehen. Damit besteht die Möglichkeit, die Trennwand im Rahmen von regelmäßigen Inspektionen zu überprüfen. Die Revisionsöffnungen können stirnseitig am Kugelboden in Form von Rohrstutzen angeordnet sein. Diese können auch zur Halterung des Behälters genutzt werden.Each pressure vessel is preferably provided with an inspection opening. In order to there is the possibility to close the partition as part of regular inspections check. The inspection openings can be in the form of Pipe socket may be arranged. These can also be used to hold the container become.

Das erfindungsgemäße Verfahren zum Herstellen eines Behälters zum Speichern von Gas unter hohem Druck, insbesondere von Erdgas mit mindestens zwei Druckbehältern wobei mindestens ein Druckbehälter mit einem Stutzen zum Be- und Entladen versehen ist, ist dadurch gekennzeichnet, dass die Druckbehälter eine zylinderförmige Behälterwand mit einem kreissegmentförmigen Querschnitt aufweisen, an die in einem ersten Schritt beidseitig Kugelböden angeschweißt werden. Anschließend werden die Behälterwand und die Kugelböden von benachbarten Druckbehältern über eine gemeinsame Trennwand miteinander verschweißt und zwar vorzugsweise mittels Dünnspalttechnik.The inventive method for producing a container for storing Gas under high pressure, especially natural gas with at least two pressure vessels wherein at least one pressure vessel is provided with a nozzle for loading and unloading is characterized in that the pressure vessel is cylindrical Have container wall with a circular segment-shaped cross section to which in a first step, spherical bottoms are welded on both sides. Then the Container wall and the spherical bottoms of neighboring pressure vessels over a common partition welded together, preferably by means of Thin gap technology.

Die Erfindung wird im folgenden anhand eines bevorzugten Ausführungsbeispiels des erfindungsgemäßen Behälters im Zusammenhang mit der Zeichnung näher erläutert.The invention is based on a preferred embodiment of the container according to the invention explained in connection with the drawing.

Die Zeichnung zeigt in:

  • Fig. 1 in perspektivischer Ansicht einen erfindungsgemäßen Behälter;
  • Fig. 2 in perspektivischer Ansicht einen aufgeschnittenen Druckbehälter;
  • Fig. 3 in perspektivischer Ansicht eine Trennwand;
  • Fig. 4 eine Detaildarstellung der Schnittfläche der Trennwand;
  • Fig. 5 in perspektivischer Ansicht eine weitere Ausführungsform eines erfindungsgemäßen Behälters;
  • Fig. 6 eine Sicht auf die Trennwand des Behälters nach Fig. 5.
    • The drawing shows in:
  • Figure 1 is a perspective view of a container according to the invention.
  • Figure 2 is a perspective view of a cut pressure vessel.
  • Figure 3 is a perspective view of a partition.
  • 4 shows a detailed illustration of the sectional area of the partition wall;
  • 5 shows a perspective view of a further embodiment of a container according to the invention;
  • 6 is a view of the partition of the container of FIG .. 5

    • Fig. 1 zeigt einen Behälter, der aus drei Druckbehältern 1 besteht. Der Behälter besteht aus hochfestem Blech und zwar aus wasservergütetem Feinkornstahl. Wie in Fig. 2 zu erkennen ist, weisen die Druckbehälter 1 jeweils eine zylinderförmige Behälterwand 2 mit einem kreissegmentförmigen Querschnitt auf. Die Behälterwand 2 wurde kalt aus dem Stahlblech gewalzt oder gepresst. Es ist auch möglich, die Behälterwand 2 aus einem Rohr auszuschneiden. An die Behälterwand 2 schließen sich stirnseitig im wesentlichen halbkreisförmige Kugelböden 3 an, die ebenfalls aus hochfestem kalt gepresstem Stahlblech bestehen. Ein Kugelboden 3 weist einen Stutzen 4 zum Be- und Entladen auf. Die Behälterwand 2 wird mit den Kugelböden 3 verschweißt, vorzugsweise mittels Dünnspalttechnik, insbesondere Laserschweißen.1 shows a container which consists of three pressure containers 1. The container is there Made of high-strength sheet metal, namely water-tempered fine-grained steel. As in Fig. 2 too can be seen, the pressure vessels 1 each have a cylindrical vessel wall 2 with a circular segment-shaped cross section. The container wall 2 became cold rolled or pressed onto the steel sheet. It is also possible to remove the container wall 2 cut out a pipe. On the container wall 2 close in the front essential semicircular spherical bottoms 3, which are also made of high-strength cold pressed steel sheet. A spherical bottom 3 has a nozzle 4 for loading and Unload on. The container wall 2 is welded to the spherical bottoms 3, preferably by means of thin gap technology, in particular laser welding.

    Zwischen zwei Druckbehältern 1 befindet sich eine ebene Trennwand 5. Beim Ausführungsbeispiel ist diese stegartig ausgeführt. Die Trennwand 5 besteht ebenfalls aus Stahlblech. Am Rand der Trennwand sind umlaufend beidseitig Ansätze 7 ausgebildet. Die Schnittfläche der Trennwand ist im Bereich des Randes somit ypsilonförmig. (Fig. 3 und Fig. 4). Von der stegartigen Trennwand ausgehend divergieren die Ansätze 7 umlaufend derart schräg nach außen, dass die Ansätze mit den Wänden der Druckbehälter 1 Stoßstellen zu bilden. Die Übergangsbereiche sind nach innen gerundet. Die Ansätze 7 werden vorzugsweise durch eine Kaltstauchung hergestellt.A flat partition 5 is located between two pressure vessels 1. In the exemplary embodiment is designed like a bridge. The partition 5 also consists of Sheet steel. At the edge of the partition wall approaches 7 are formed on both sides. The cut surface of the partition is thus Y-shaped in the area of the edge. (Fig. 3 and Fig. 4). Starting from the web-like partition, the lugs 7 diverge circumferentially so obliquely outwards that the approaches with the walls of the Pressure vessel to form 1 joints. The transition areas are inside rounded. The approaches 7 are preferably produced by cold upsetting.

    Die Ansätze 7 verlaufen in einem Winkel zur Trennwand, wobei jeweils die Winkel der beiden Ansätze unterschiedlich groß sein können und so gewählt werden, dass die Ansätze 7 mit den Wänden der Druckbehälter 1 aneinander stoßen. Durch die Ansätze 7 am Rand der Trennwand 5 wird es möglich, die einzelnen Teile mittels Dünnspalttechnik zu verschweißen. Hierbei werden mittels eines Laserstrahls die Ränder der zu verbindenden Teile aufgeschmolzen und stoffschlüssig verbunden. Diese Technik ist besonders geeignet zum Verschweißen von hochfesten Werkstoffen mit dünnen Wandstärken. Die Wärmeeinbringung in das Material ist gering, so dass kaum ein Schweißverzug entsteht. Außerdem wird eine großvolumige Schweißnaht, bei der relativ große Mengen an Fremdmaterial eingebracht werden muss, vermieden.The approaches 7 run at an angle to the partition, the angles of each Both approaches can be of different sizes and chosen so that the Approaches 7 with the walls of the pressure vessel 1 abut. Through the approaches 7 at the edge of the partition 5, it becomes possible to use the individual parts To weld thin gap technology. Here, the Melted edges of the parts to be connected and bonded. This technique is particularly suitable for welding high-strength materials with thin walls. The heat input into the material is low, so that hardly any welding distortion occurs. In addition, a large-volume weld, at the relatively large amounts of foreign material must be avoided.

    Jede Trennwand 5 weist eine Durchtrittsöffnung 6 auf, so dass beim Befüllen ein Druckausgleich zwischen den Druckbehältern 1 entsteht.Each partition 5 has a passage opening 6, so that when filling Pressure equalization between the pressure vessels 1 arises.

    In Fig. 5 ist ein Behälter mit zwei gleich langen Druckbehältern 1 und einem kürzeren Druckbehälter 1a dargestellt. Die Trennwand 5a zwischen dem Druckbehälter 1 und dem kürzeren Druckbehälter 1a ist in Fig. 6 dargestellt. Die Enden der Trennwand 5a sind, ähnlich einer Skispitze, einfach gekrümmt. Jeder Druckbehälter ist mit einer nicht dargestellten Revisionsöffnung versehen. 5 is a container with two pressure containers 1 of equal length and a shorter one Pressure vessel 1a shown. The partition 5a between the pressure vessel 1 and the shorter pressure vessel 1a is shown in Fig. 6. The ends of the partition 5a are simply curved, similar to a ski tip. Every pressure vessel is not with one provided inspection opening provided.

    Im Rahmen der Erfindung sind ohne Weiteres Abwandlungen möglich. So können die Druckbehälter 1 eine andere Querschnittsform aufweisen. Die Druckbehälter 1 können einen unterschiedlich großen Querschnitt aufweisen. Die Trennwand kann 5 eine Vielzahl von Durchtrittsöffnungen 6 aufweisen, so dass eine Gitterkonstruktion entsteht.Modifications are readily possible within the scope of the invention. So they can Pressure vessel 1 have a different cross-sectional shape. The pressure vessel 1 can have a different cross-section. The partition can be 5 a Have a large number of passage openings 6, so that a lattice structure is formed.

    Claims (10)

    Behälter zum Speichern von Gas unter hohem Druck, insbesondere von Erdgas mit mindestens zwei Druckbehältern (1), wobei mindestens ein Druckbehälter (1) mit mindestens einem Stutzen (4) zum Be- und Entladen versehen ist,
    dadurch gekennzeichnet, dass die Druckbehälter (1) über eine gemeinsame Trennwand (5) miteinander verschweißt sind, wobei die Trennwand (5) mindestens eine Durchtrittsöffnung (6) für das Gas aufweist.    Container for storing gas under high pressure, in particular natural gas, with at least two pressure vessels (1), at least one pressure vessel (1) being provided with at least one nozzle (4) for loading and unloading,
    characterized in that the pressure vessels (1) are welded together via a common partition (5), the partition (5) having at least one passage opening (6) for the gas.         Behälter nach Anspruch 1,
    dadurch gekennzeichnet, dass die Trennwand (5) im Wesentlichen eben ausgebildet ist.    Container according to claim 1,
    characterized in that the partition (5) is essentially flat.         Behälter nach Anspruch 1 oder 2,
    dadurch gekennzeichnet, dass die Trennwand (5) an ihrem Rand beidseitig Ansätze (7) aufweist, die in einem Winkel zur Trennwand (5) verlaufen.    Container according to claim 1 or 2,
    characterized in that the partition (5) has lugs (7) on both sides of its edge which run at an angle to the partition (5).         Behälter nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet, dass der Rand der Trennwand mittels einer Stauchung zu beidseitigen Ansätzen (7) verformt ist.    Container according to one of claims 1 to 3,
    characterized in that the edge of the partition wall is deformed by means of a compression into two-sided shoulders (7).         Behälter nach einem der Ansprüche 1 bis 4,
    dadurch gekennzeichnet, dass die Druckbehälter (1) eine im Wesentlichen zylinderförmige Behälterwand (2) mit einem kreissegmentförmigen Querschnitt aufweisen und dass sich an die Behälterwand (2) beidseitig im Wesentlichen halbkreisförmige Kugelböden (3) anschließen.    Container according to one of claims 1 to 4,
    characterized in that the pressure vessels (1) have an essentially cylindrical vessel wall (2) with a cross-section in the shape of a segment of a circle and that essentially semi-circular spherical bottoms (3) adjoin the vessel wall (2).         Behälter nach einem der Ansprüche 1 bis 5,
    dadurch gekennzeichnet, dass die Druckbehälter (1) unterschiedlich lang sind und/oder unterschiedliche Querschnitte aufweisen.    Container according to one of claims 1 to 5,
    characterized in that the pressure vessels (1) are of different lengths and / or have different cross sections.         Behälter nach Anspruch 6,
    dadurch gekennzeichnet, dass die Trennwand (5) wenigstens an einem Ende derart gekrümmt ist, dass die Endbereiche unterschiedlich langer benachbarter Druckbehälter verbindbar sind.    Container according to claim 6,
    characterized in that the partition (5) is curved at least at one end in such a way that the end regions of adjacent pressure vessels of different lengths can be connected.         Behälter nach einem der Ansprüche 1 bis 6,
    dadurch gekennzeichnet,
    ist jeder Druckbehälter (1) mit einem Revisionsöffnung versehen.    Container according to one of claims 1 to 6,
    characterized by
    each pressure vessel (1) is provided with an inspection opening.         Verfahren zum Herstellen eines Behälters zum Speichern von Gas unter hohem Druck, insbesondere von Erdgas mit mindestens zwei Druckbehältern (1), wobei mindestens ein Druckbehälter (1) mit einem Stutzen zum Be- und Entladen (4) versehen ist,
    dadurch gekennzeichnet, dass die Druckbehälter (1) eine zylinderförmige Behälterwand (2) mit einem kreissegmentförmigen Querschnitt aufweisen, an die beidseitig Kugelböden (3) angeschweißt werden und dass anschließend die Behälterwand (2) und die Kugelböden (3) von benachbarten Druckbehältern über eine gemeinsame Trennwand (5) miteinander verschweißt werden.    Method for producing a container for storing gas under high pressure, in particular natural gas, with at least two pressure containers (1), at least one pressure container (1) being provided with a nozzle for loading and unloading (4),
    characterized in that the pressure vessels (1) have a cylindrical vessel wall (2) with a circular segment-shaped cross-section, to which spherical bottoms (3) are welded on both sides, and in that the vessel wall (2) and the spherical bottoms (3) are then joined by adjacent pressure vessels Partition (5) are welded together.         Verfahren nach Anspruch 9,
    dadurch gekennzeichnet, dass die einzelnen Teile (2, 3,5) mittels Dünnspalttechnik miteinander verschweißt werden.    Method according to claim 9,
    characterized in that the individual parts (2, 3.5) are welded to one another by means of thin gap technology.
    EP20020015922 2001-08-08 2002-07-17 High pressure gas vessel Expired - Lifetime EP1286103B1 (en)

    Applications Claiming Priority (4)

    Application Number Priority Date Filing Date Title
    DE10137970 2001-08-08
    DE10137970 2001-08-08
    DE10149701A DE10149701A1 (en) 2001-08-08 2001-10-09 High pressure gas container, especially for natural gas, has two container sections welded together at a dividing wall, with a passage opening through the wall and a filling/draining connection at one section
    DE10149701 2001-10-09

    Publications (3)

    Publication Number Publication Date
    EP1286103A2 true EP1286103A2 (en) 2003-02-26
    EP1286103A3 EP1286103A3 (en) 2006-03-29
    EP1286103B1 EP1286103B1 (en) 2009-08-26

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    Application Number Title Priority Date Filing Date
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    EP1286103B1 (en) 2009-08-26
    EP1286103A3 (en) 2006-03-29

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