WO2007079971A1 - Pressure vessel for storing liquid or gaseous media - Google Patents

Pressure vessel for storing liquid or gaseous media Download PDF

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Publication number
WO2007079971A1
WO2007079971A1 PCT/EP2006/012567 EP2006012567W WO2007079971A1 WO 2007079971 A1 WO2007079971 A1 WO 2007079971A1 EP 2006012567 W EP2006012567 W EP 2006012567W WO 2007079971 A1 WO2007079971 A1 WO 2007079971A1
Authority
WO
WIPO (PCT)
Prior art keywords
collar
plastic core
pressure vessel
ring
core container
Prior art date
Application number
PCT/EP2006/012567
Other languages
German (de)
French (fr)
Inventor
Dietmar Müller
Original Assignee
Xperion Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xperion Gmbh filed Critical Xperion Gmbh
Priority to EP06841190A priority Critical patent/EP1989477B1/en
Priority to AT06841190T priority patent/ATE431521T1/en
Priority to DE502006003752T priority patent/DE502006003752D1/en
Publication of WO2007079971A1 publication Critical patent/WO2007079971A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/02Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
    • F17C1/04Protecting sheathings
    • F17C1/06Protecting sheathings built-up from wound-on bands or filamentary material, e.g. wires
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01Shape
    • F17C2201/0104Shape cylindrical
    • F17C2201/0109Shape cylindrical with exteriorly curved end-piece
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05Size
    • F17C2201/056Small (<1 m3)
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/01Reinforcing or suspension means
    • F17C2203/011Reinforcing means
    • F17C2203/012Reinforcing means on or in the wall, e.g. ribs
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602Wall structures; Special features thereof
    • F17C2203/0604Liners
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602Wall structures; Special features thereof
    • F17C2203/0612Wall structures
    • F17C2203/0614Single wall
    • F17C2203/0619Single wall with two layers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634Materials for walls or layers thereof
    • F17C2203/0658Synthetics
    • F17C2203/066Plastics
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634Materials for walls or layers thereof
    • F17C2203/0658Synthetics
    • F17C2203/0663Synthetics in form of fibers or filaments
    • F17C2203/0665Synthetics in form of fibers or filaments radially wound
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634Materials for walls or layers thereof
    • F17C2203/0658Synthetics
    • F17C2203/0663Synthetics in form of fibers or filaments
    • F17C2203/0668Synthetics in form of fibers or filaments axially wound
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634Materials for walls or layers thereof
    • F17C2203/0658Synthetics
    • F17C2203/0663Synthetics in form of fibers or filaments
    • F17C2203/0673Polymers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0305Bosses, e.g. boss collars
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323Valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0388Arrangement of valves, regulators, filters
    • F17C2205/0394Arrangement of valves, regulators, filters in direct contact with the pressure vessel
    • F17C2205/0397Arrangement of valves, regulators, filters in direct contact with the pressure vessel on both sides of the pressure vessel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00Vessel construction, in particular methods of manufacturing
    • F17C2209/21Shaping processes
    • F17C2209/2109Moulding
    • F17C2209/2127Moulding by blowing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00Vessel construction, in particular methods of manufacturing
    • F17C2209/21Shaping processes
    • F17C2209/2109Moulding
    • F17C2209/2145Moulding by rotation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107Single phase
    • F17C2223/0123Single phase gaseous, e.g. CNG, GNC
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107Single phase
    • F17C2223/013Single phase liquid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/03Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/036Very high pressure (>80 bar)
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00Purposes of gas storage and gas handling
    • F17C2260/01Improving mechanical properties or manufacturing
    • F17C2260/012Reducing weight
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00Purposes of gas storage and gas handling
    • F17C2260/01Improving mechanical properties or manufacturing
    • F17C2260/013Reducing manufacturing time or effort
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00Purposes of gas storage and gas handling
    • F17C2260/03Dealing with losses
    • F17C2260/035Dealing with losses of fluid
    • F17C2260/036Avoiding leaks

Definitions

  • Pressure vessel for storing liquid or gaseous media
  • the invention relates to a pressure vessel for storing liquid or gaseous media, comprising a plastic core container having at least one collar, which is arranged in the radial gap between a connection ring inserted therein for a pressure line and a collar surrounding the collar outside with a radially outwardly projecting collar , wherein the connecting ring and / or the support flange made of metal and having at least one open in the direction of the collar groove containing a sealingly pressed to the collar O-ring and wherein at least the plastic core container and the collar of a supporting shell of a fiber composite material at least partially are enclosed.
  • a plastic core container having at least one collar, which is arranged in the radial gap between a connection ring inserted therein for a pressure line and a collar surrounding the collar outside with a radially outwardly projecting collar , wherein the connecting ring and / or the support flange made of metal and having at least one open in the direction of the collar groove containing a sealingly pressed to the
  • Such a pressure vessel is known from DE 197 51 411 C1.
  • the metallic collar ends at its outer periphery in a sharp edge that touches the plastic core container adjacent. He forms at the same time a part of a neck piece, which is based on a thread of
  • Collar is screwed and in the one engaging in the collar
  • the invention is based on the object to further develop such a pressure vessel that results in a reduced manufacturing costs and a reduced weight.
  • the collar ends at the radial outer edge in a circumferential nose, which surrounds the buffer ring radiallywelse / tig in a partial area in a circumferential recess adapted profile.
  • the StauerhüHe facing surface is substantially uniformly curved and smooth. Even with extremely changing internal pressures is achieved by the production reason evenly merging into each other outer contours of the buffer ring, the
  • the purpose of the buffer ring is to distribute the pressure inherent in the interior of the plastic core container in the manner of a hydraulic pressure distributor so evenly on the support sleeve and the support flange that lifting of the support sleeve in the region of the transition zone is avoided.
  • the radially outwardly facing end of the collar can not come into direct physical contact with the plastic core container. Also, changing internal pressures can therefore no longer lead to the cutting of the metallic outer edge of the covenant in the plastic core container.
  • the fiber composite forming the support shell expediently contains fiber strands embedded in synthetic resin that extend over one another and extend substantially in the longitudinal and circumferential directions.
  • the fiber strands are made of glass, carbon, aramid, boron and / or AI2O3 fibers depending on the intended use of the pressure vessel. They are applied after prior impregnation with a synthetic resin or thermoplastic in a winding process under pre-stress on the prefabricated and already provided with the fittings plastic core container and permanently fixed by solidification of the synthetic resin or thermoplastic.
  • the fiber composite forming the support sheath can additionally or alternatively also comprise fiber strands crossing one another, which are inclined in the longitudinal and circumferential direction and expediently also assigned to the longitudinal axis of the plastic core container in a mirror-inverted manner.
  • the longitudinal and circumferential forces can thereby be absorbed in an optimal manner.
  • the possibilities are improved, the ratio of the opening cross-section of an end opening with respect to the inner diameter of the plastic core container to large values of at least 30%, preferably at least 50% set without Functional impairments result. This is a great advantage with regard to the installation of secondary valves.
  • the collar, the connecting ring and the support flange are expediently limited in the mutually facing surface areas by thread groove-free cylindrical surfaces.
  • the production is therefore particularly simple and weight-saving. Nevertheless, an excellent mutual sealing and durability is achieved
  • the O-ring can be made of any of the relevant permanently elastic, polymeric sealing materials, such as natural or synthetic rubber.
  • the plastic core container and / or the buffer ring expediently consist of polyamide.
  • Other polymeric materials may also be used in their manufacture as needed, such as PE, HDPE or PTFE. The selection is reserved for the user and results mainly from the chemical, physical and thermal requirements of the application.
  • FIG. 1 shows a pressure vessel in longitudinal section
  • Fig. 2 is an enlarged detail of the front end of a pressure vessel of FIG. 1 in a half-sectioned view
  • the pressure vessel shown in the figures is used for storing liquid or gaseous media which are under a pressure of up to 2,000 bar. It is provided at both ends with connection openings for pressure lines and / or valves, which have different dimensions, but are designed identically in accordance with the invention.
  • the pressure vessel comprises a plastic core container 1 made of polyamide and is provided at both ends with integrally molded collar 2. It can be generated by a blow molding process or rotational sintering. To illustrate the invention, only the construction in the region of one of the two collars will be described, wherein the embodiments can be transferred to the other collar.
  • the collar 2 is arranged in the radial gap between a connection ring 3 inserted therein for a pressure line and a collar 2 surrounding the outside support flange 4 with a radially outwardly projecting collar 5, wherein the connecting ring 3 and / or the
  • Support flange 4 made of metal.
  • the support flange 4 and the connecting ring 3 surround each other at the same time with abutting, cylindrical guide surfaces in the region adjoining the frontal end of the collar. They are thereby assigned to each other and the collar 2 concentric.
  • the support bottle 4 overlaps the
  • the collar 2, the connecting ring 3 and the support flange 4 are limited in all facing surface areas by thread groove-free cylindrical surfaces.
  • connection ring 3 has a groove open in the direction of the collar 2, which contains a sealing ring 2 pressed against the collar 2 in rubber. Due to the changing operating pressure relative displacements of the plastic core container 1 with respect to the connecting ring 3 are thereby absorbed elastically, without causing leakage.
  • O-directional seals may consist of sealing materials that are particularly adapted to the physical and / or chemical conditions of use. The same applies to the materials from which the plastic core container 1 is made.
  • the collar 5 and the plastic core container 1 are at least partially enclosed by one of a support shell 7 of a fiber composite, wherein between the collar 5 and the plastic core container 1 in which the outer circumference radially inwardly adjoining region in a wedge-shaped outward radial direction widening distance is provided, wherein the gap formed by the gap is filled by a plastically deformable buffer ring 8 of polymeric material and wherein the buffer ring 8 has an outer contour, the axially adjacent outer contours of the plastic core container 1 and the Federal 5 while avoiding a sudden change in direction connecting into each other.
  • the supporting sheath 7 from the fiber composite Fabric surrounds the overall resulting outer contour with the static thickness required in each case, wherein the front ends are integrally overlapped in one another.
  • the pressure vessel thereby has the required strength not only in the radial but also in the axial direction.
  • the radial width of the buffer ring 8 occupies at least 50% of the radial width of the collar 5.
  • the metallic collar 5 terminates at the radial outer edge in a circumferential nose 9, which surrounds the polymeric buffer ring 8, consisting here of polyamide, radially outside in a partial area.
  • a good guidance of the buffer ring is obtained, which helps to prevent incorrect assembly or a pressure-related relative displacement with respect to the plastic core container 1.
  • the fiber composite forming the support sheath 7 comprises interlaced fiber-embedded fiber strands stacked in multiple layers and associated with the longitudinal direction at an angle of plus / minus 10 to 90 ", advantageously at an angle of 35-88 ° Winding angles within each layer may be identical, differing in successive layers to meet the required strength requirements.
  • the fiber strands contained in the fiber composite contain carbon fibers which are embedded in a resin matrix of epoxy resin in a prestressed state.
  • the plastic core container and the Puffemng made of polyamide.
  • the plastic core container has an inner diameter of 240 mm and the connecting ring one of 140 mm. This results in a pole ratio, ie a ratio of the inner diameter of the plastic core container 1 and the inner diameter of the connecting ring 3 of 58%, ie a value greater than 50%, which makes it easier to accommodate internals in the plastic core container.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

The invention relates to pressure vessel for storing liquid or gaseous media, comprising a plastic core vessel (1) with at least one neck (2) which is arranged in the radial interstice between a connecting ring (3) for a pressure line inserted therein and a supporting flange (4). Said flange encloses the neck (2) on its periphery and has a collar (5) that projects radially outward. The connecting ring (3) and/or the supporting flange (4) consist of metal and have at least one groove that is open to the neck (2) and that contains an O-ring that is sealingly forced against the neck (2). At least the plastic core vessel (1) and the collar (5) are at least partially enclosed by a fiber composite supporting sleeve (7). Between the collar (5) and the plastic core vessel (1) at least one distance in the region that is contiguous to the outer periphery in the radially inward direction defines a gap that is filled with a malleable buffer ring (8) from a polymer material. Said buffer ring (8) has an outer contour that gradually connects the axial contiguous outer contours of the plastic core vessel (1) and the collar (5) while avoiding sharp changes of direction.

Description

Druckbehälter zur Speicherung von flüssigen oder gasförmigen MedienPressure vessel for storing liquid or gaseous media
Beschreibungdescription
Die Erfindung betrifft einen Druckbehälter zur Speicherung von flüssigen oder gasförmigen Medien, umfassend einen Kunststoffkernbehälter mit zumindest einem Kragen, der in dem radialen Zwischenraum zwischen einem darin eingesetzten Anschlussring für eine Druckleitung und einem den Kragen außenseitig umschließenden Stützflansch mit einem radial nach außen vorstehenden Bund angeordnet ist, wobei der Anschlussring und/oder der Stützflansch aus Metall bestehen und zumindest eine in Richtung des Kragens offene Nut aufweisen, die einen an den Kragen dichtend angepressten O-Ring enthält und wobei zumindest der Kunststoffkernbehälter und der Bund von einer Stützhülle aus einem Faserverbundstoff zumindest anteilig umschlossen sind. Stand der TechnikThe invention relates to a pressure vessel for storing liquid or gaseous media, comprising a plastic core container having at least one collar, which is arranged in the radial gap between a connection ring inserted therein for a pressure line and a collar surrounding the collar outside with a radially outwardly projecting collar , wherein the connecting ring and / or the support flange made of metal and having at least one open in the direction of the collar groove containing a sealingly pressed to the collar O-ring and wherein at least the plastic core container and the collar of a supporting shell of a fiber composite material at least partially are enclosed. State of the art
Ein solcher Druckbehälter ist aus der DE 197 51 411 C1 bekannt. Der metallische Bund endet dabei an seinem Außenumfang in einem scharfkantigen Rand, der den Kunststoffkernbehälter anliegend berührt. Er bildet zugleich einen Bestandteil eines Halsstückes, das auf ein Gewinde desSuch a pressure vessel is known from DE 197 51 411 C1. The metallic collar ends at its outer periphery in a sharp edge that touches the plastic core container adjacent. He forms at the same time a part of a neck piece, which is based on a thread of
Kragens aufgeschraubt wird und in das ein in den Kragen eingreifenderCollar is screwed and in the one engaging in the collar
Hohlkegel einschraubbar ist, der eine radiale Anpressung des Kragens an dasHollow cone is screwed, the radial contact pressure of the collar to the
Halsstück und eine darin eingebettete O-Ringdichtung bewirkt. Die Konstruktion setzt einen großen technischen Aufwand bei der Herstellung voraus und führt zu einem großen Gewicht.Neck and an embedded therein O-ring seal causes. The design requires a great deal of technical effort in the production and leads to a large weight.
Darstellung der ErfindungPresentation of the invention
Der Erfindung liegt die Aufgabe zu Grunde, einen solchen Druckbehälter derart weiter zu entwickeln, dass sich ein verminderter Herstellaufwand und ein vermindertes Gewicht ergibt.The invention is based on the object to further develop such a pressure vessel that results in a reduced manufacturing costs and a reduced weight.
Diese Aufgabe wird erfindungsgemäß bei einem Druckbehälter der eingangs genannten Art mit den kennzeichnendem Merkmalen von Anspruch 1 gelöst Auf vorteilhafte Ausgestaltungen nehmen die Unteransprüche Bezug.This object is achieved with a pressure vessel of the type mentioned above with the characterizing features of claim 1. Advantageous embodiments, the dependent claims respect.
Bei dem erfindungsgemäßen Druckbehälter ist es demgemäss vorgesehen, dass zwischen άsm Bund und dem Kunststoffkernbehälter zumindest in dem sich an den Außenumfang radial nach innen anschließenden Bereich ein sich in radialer Richtung nach außen keilförmig erweiternder Abstand vorgesehen ist, dass der durch den Abstand gebildete Spalt durch einen plastisch verformbaren Pufferring aus po)ymerem Werkstoff ganz ausgefütft ist und dass der Pufferring eine Außenkontur aufweist, die die sich axial anschließenden Außenkonturen des Kunststoffkernbehälters und des Bundes unter Vermeidung einer sprunghaften Richtungsänderung ineinanderübergeheπd verbindet. Die während der bestimmungsgemäßen Verwendung in dem Inneren des Kunststoffkernbehälters wirksamen Druckkräfte werden dadurch in optimaler Weise von der aus einem Faserverbundstoff bestehenden Stützhülle aufgefangen, ohne dass es zu funktionsbeeinträchtigenden Relativverschiebungen der Einzelteile des Druckbehälters kommt. Die Stützhülle kann dadurch hinsichtlich der Tragfähigkeit und hinsichtlich des Gewichtes optimiert werden und druckbedingte Atmungsbewegungen können nicht mehr dazu führen, dass sich der Außenrand des Bundes in die Wandung des Kunststoffkernbehälters einarbeitet oder die Wandung an der Berührungsstelle plastisch verformt.In the pressure vessel according to the invention, it is accordingly provided that between the collar and the plastic core container at least in the region adjoining the outer circumference radially inwardly widening in the radial outward widening distance is provided that the gap formed by the gap by a plastically deformable buffer ring of po ) ymerem material is fully ausgefütft and that the buffer ring has an outer contour, the axially adjacent outer contours of the plastic core container and the Federal under avoidance a sudden change in direction ineinandergeheπd connects. The effective during use as intended in the interior of the plastic core container pressure forces are thereby optimally collected by the existing of a fiber composite support shell, without causing any functional impairing Relativverschiebungen the items of the pressure vessel. The support shell can thereby be optimized in terms of carrying capacity and in terms of weight and pressure-induced respiratory movements can no longer cause the outer edge of the collar incorporated into the wall of the plastic core container or plastically deformed the wall at the contact point.
Dabei ist es von wesentlicher Bedeutung, dass der Bund besonders verformungsresistent ist. Er hat zu diesem Zweck ein im wesentlichen dreieckiges Profil, bei dem die maximale Erstreckung in radialer Richtung im Bereich des ein- bis zweifachen der an der Wurzel gemessenen, maximalen Erstreckung in axialer Richtung liegt, vorteilhaft im Bereich des 1 ,3 bis 1 ,5- fachen.It is essential that the federal government is particularly resistant to deformation. He has for this purpose a substantially triangular profile in which the maximum extent in the radial direction in the range of one to two times measured at the root, maximum extent in the axial direction, advantageously in the range of 1, 3 to 1, 5 - fold.
Nach einer vorteilhaften Ausgestaltung ist es vorgesehen, dass der Bund am radialen Außenrand in einer umlaufenden Nase endet, die den Pufferring in einem Teilbereich in einer umlaufenden Eintiefung angepassten Profils radial außense/tig umschließt. Die der StützhüHe zugewandte Oberfläche ist im wesentlichen gleichmäßig gewölbt und glatt ausgebildet. Auch bei extrem wechselnden Innendrücken wird dadurch erreicht, dass die herstellungsbedingt gleichmäßig ineinanderübergehenden Außenkonturen des Pufferringes, desAccording to an advantageous embodiment, it is provided that the collar ends at the radial outer edge in a circumferential nose, which surrounds the buffer ring radially Außense / tig in a partial area in a circumferential recess adapted profile. The StützhüHe facing surface is substantially uniformly curved and smooth. Even with extremely changing internal pressures is achieved by the production reason evenly merging into each other outer contours of the buffer ring, the
Bundes und des Kunststoffkernbehälters erhalten bleiben undFederal and the plastic core container are preserved and
Ablösungsgefahren bezüglich der adhäsiven Anbindung der Stützhülle aus demDanger of detachment with respect to the adhesive connection of the support shell from the
Faserverbundstoff vermieden werden. Der Pufferring hat vor allem den Zweck, den betriebsbedingt im inneren des Kunststoffkernbehälters herrschenden Druck nach Art eines hydraulischen Druckverteilers so gleichmäßig auf die Stützhülle und den Stützflansch zu verteilen, dass ein Abheben der Stützhülle im Bereich der Übergangszone vermieden wird. Das radial nach außen zeigende Ende des Bundes kann in keinen direkten Berührungskontakt mit dem Kunststoffkernbehälter gelangen. Auch wechselnde Innendrücke können daher nicht mehr zum Einschneiden des metallischen Außenrandes des Bundes in den Kunststoffkernbehälter führen.Fiber composite can be avoided. Above all, the purpose of the buffer ring is to distribute the pressure inherent in the interior of the plastic core container in the manner of a hydraulic pressure distributor so evenly on the support sleeve and the support flange that lifting of the support sleeve in the region of the transition zone is avoided. The radially outwardly facing end of the collar can not come into direct physical contact with the plastic core container. Also, changing internal pressures can therefore no longer lead to the cutting of the metallic outer edge of the covenant in the plastic core container.
Der die Stützhülle bildende Faserverbundstoff enthält zweckmäßig einander überkreuzende, in Kunstharz eingebettete Faserstränge, die sich im wesentlichen in Längs- und Umfangsrichtung erstrecken. Die Faserstränge bestehen in Abhängigkeit vom Verwendungszweck des Druckbehälters aus Glass-, Kohlenstoff-, Aramid-, Bor- und/oder AI2O3-Fasern. Sie werden nach vorausgegangener Tränkung mit einem Kunstharz oder Thermoplast in einem Wickelprozess unter Vorspannung auf den vorgefertigten und bereits mit den Armaturen versehenen Kunststoffkernbehälter aufgebracht und durch eine Verfestigung des Kunstharzes oder des Thermoplasten bleibend fixiert.The fiber composite forming the support shell expediently contains fiber strands embedded in synthetic resin that extend over one another and extend substantially in the longitudinal and circumferential directions. The fiber strands are made of glass, carbon, aramid, boron and / or AI2O3 fibers depending on the intended use of the pressure vessel. They are applied after prior impregnation with a synthetic resin or thermoplastic in a winding process under pre-stress on the prefabricated and already provided with the fittings plastic core container and permanently fixed by solidification of the synthetic resin or thermoplastic.
Der die Stützhülle bildende Faserverbundstoff kann ergänzend oder alternativ auch einander überkreuzende Faserstränge umfassen, die der Längs- und Umfangsrichtung geneigt und zweckmäßig zugleich der Längsachse des Kunststoffkembehälters spiegelbildlich geneigt zugeordnet sind. Die längs- und umfangsgerichteten Kräfte lassen sich hierdurch in optimaler Weise auffangen. Außerdem werden die Möglichkeiten verbessert, das Verhältnis des Öffnungsquerschnittes einer stirnseitigen Öffnung in Bezug zum Innendurchmesser des Kunststoffkernbehälters auf große Werte von mindestens 30%, vorzugsweise mindestens 50%, einzustellen, ohne dass sich Funktionsbeeinträchtigungen ergeben. In bezug auf den Einbau von Sekundärarmaturen ist das von großem Vorteil.The fiber composite forming the support sheath can additionally or alternatively also comprise fiber strands crossing one another, which are inclined in the longitudinal and circumferential direction and expediently also assigned to the longitudinal axis of the plastic core container in a mirror-inverted manner. The longitudinal and circumferential forces can thereby be absorbed in an optimal manner. In addition, the possibilities are improved, the ratio of the opening cross-section of an end opening with respect to the inner diameter of the plastic core container to large values of at least 30%, preferably at least 50% set without Functional impairments result. This is a great advantage with regard to the installation of secondary valves.
Der Kragen, der Anschlussring und der Stützflansch sind zweckmäßig in den einander zugewandten Oberflächenbereichen durch gewinderillenfreie Zylinderflächen begrenzt. Die Herstellung ist dadurch besonders einfach und gewichtssparend. Dennoch wird eine ausgezeichnete gegenseitige Abdichtung und Dauerhaltbarkeit erreichtThe collar, the connecting ring and the support flange are expediently limited in the mutually facing surface areas by thread groove-free cylindrical surfaces. The production is therefore particularly simple and weight-saving. Nevertheless, an excellent mutual sealing and durability is achieved
Der O-Ring kann aus irgend einem der einschlägig verwendeten, dauerelastischen, polymeren Dichtungswerkstoffe bestehen, beispielsweise aus natürlichem oder synthetischem Gummi.The O-ring can be made of any of the relevant permanently elastic, polymeric sealing materials, such as natural or synthetic rubber.
Der Kunststoffkernbehälter und/oder der Pufferring bestehen zweckmäßig aus Polyamid. Andere polymere Werkstoffe können zu ihrer Herstellung bedarfsweise ebenfalls verwendet werden, beispielweise PE, HDPE oder PTFE. Die Auswahl bleibt dem Anwender vorbehalten und ergibt sich vor allem aus den chemischen, physikalischen und thermischen Anforderungen des Anwendungsfalles.The plastic core container and / or the buffer ring expediently consist of polyamide. Other polymeric materials may also be used in their manufacture as needed, such as PE, HDPE or PTFE. The selection is reserved for the user and results mainly from the chemical, physical and thermal requirements of the application.
Kurzbeschreibung der ZeichnungBrief description of the drawing
In der in der Anlage beigefügten Zeichnung ist eine beispielhafte Ausführung des erfindungsgemäßen Druckbehälters in längsgeschnittener Darstellung wieder gegeben. Es zeigen:In the attached in the annex drawing an exemplary embodiment of the pressure vessel according to the invention is given in longitudinal section again. Show it:
Fig.1 einen Druckbehälter in längsgeschnittener Darstellung Fig. 2 einen vergrößerten Ausschnitt des stimseitigen Endes eines Druckbehälters nach Fig. 1 in halbgeschnittener Darstellung1 shows a pressure vessel in longitudinal section Fig. 2 is an enlarged detail of the front end of a pressure vessel of FIG. 1 in a half-sectioned view
Ausführung der ErfindungEmbodiment of the invention
Der in den Figuren wiedergegebene Druckbehälter dient zur Speicherung von flüssigen oder gasförmigen Medien, die unter einen Druck von bis zu 2.000 bar stehen. Er ist an beiden Enden mit Anschlussöffnungen für Druckleitungen und/oder Ventile versehen, die unterschiedlich dimensioniert, aber in erfindungswesentlicher Hinsicht identisch gestaltet sind.The pressure vessel shown in the figures is used for storing liquid or gaseous media which are under a pressure of up to 2,000 bar. It is provided at both ends with connection openings for pressure lines and / or valves, which have different dimensions, but are designed identically in accordance with the invention.
Der Druckbehälter umfasst einen Kunststoffkernbehälter 1 aus Polyamid und ist an beiden Enden mit einstückig angeformten Kragen 2 versehen. Er kann durch einen Blasformprozess oder Rotationssintern erzeugt sein. Zur Verdeutlichung der Erfindung wird nur die Konstruktion im Bereich von einem der beiden Kragen beschrieben, wobei sich die Ausführungen auf den anderen Kragen übertragen lassen.The pressure vessel comprises a plastic core container 1 made of polyamide and is provided at both ends with integrally molded collar 2. It can be generated by a blow molding process or rotational sintering. To illustrate the invention, only the construction in the region of one of the two collars will be described, wherein the embodiments can be transferred to the other collar.
Der Kragen 2 ist in dem radialen Zwischenraum zwischen einem darin eingesetzten Anschlussring 3 für eine Druckleitung und einem den Kragen 2 außenseitig umschließenden Stützflansch 4 mit einem radial nach außen vorstehenden Bund 5 angeordnet, wobei der Anschlussring 3 und/oder derThe collar 2 is arranged in the radial gap between a connection ring 3 inserted therein for a pressure line and a collar 2 surrounding the outside support flange 4 with a radially outwardly projecting collar 5, wherein the connecting ring 3 and / or the
Stützflansch 4 aus Metall bestehen. Der Stützflansch 4 und der Anschlussring 3 umschließen einander zugleich mit aneinander anliegenden, zylindrischen Führungsflächen in dem sich an das stirnseitige Ende des Kragens anschließenden Bereich. Sie sind dadurch einander und dem Kragen 2 konzentrisch zugeordnet. Außerdem übergreift der Stützflasch 4 denSupport flange 4 made of metal. The support flange 4 and the connecting ring 3 surround each other at the same time with abutting, cylindrical guide surfaces in the region adjoining the frontal end of the collar. They are thereby assigned to each other and the collar 2 concentric. In addition, the support bottle 4 overlaps the
Anschlussring 3 mit einer sich radial nach innen erstreckenden Anschlagfläche, die den Anschlussring 3 anliegend berührt und eine relative Verkantung verhindert. Dadurch wird eine zusätzliche Sicherheit gegen Relativverlagerungen des Anschlussringes 3 in bezug auf den Stützflansch 4 und den Kragen 2 erhalten. Der Kragen 2, der Anschlussring 3 und der Stützflansch 4 sind in allen einander zugewandten Oberflächenbereichen durch gewinderillenfreie Zylinderflächen begrenzt.Connecting ring 3 with a radially inwardly extending stop surface, which contacts the connecting ring 3 adjacent and prevents relative tilting. This will provide additional security against Relative displacements of the connection ring 3 with respect to the support flange 4 and the collar 2 obtained. The collar 2, the connecting ring 3 and the support flange 4 are limited in all facing surface areas by thread groove-free cylindrical surfaces.
Bei dem gezeigten Ausführungsbeispiel weist nur der Anschlussring 3 mit einer in Richtung des Kragens 2 offenen Nut auf, die einen an den Kragen 2 dichtend angepressten O-Ring 6 aus Gummi enthält. Durch den wechselnden Betriebsdruck verursachte Relativverlagerungen des Kunststoffkernbehälters 1 in bezug auf den Anschlussring 3 werden dadurch elastisch aufgefangen, ohne dass es zur Leckage kommt. Natürlich ist es auch möglich, bedarfsweise mehrere derartige O-Richtdichtungen zur Anwendung zu bringen und beispielsweise alternativ oder ergänzend in entsprechenden Nuten des Stützflansches unterzubringen. Die Sicherheit gegen eventuelle Leckagen lässt sich dadurch weiter erhöhen. Ferner können die O-Ringdichtungen aus Dichtungswerkstoffen bestehen, die an die physikalischen und/oder chemischen Anwendungsverhältnisse besonders angepasst sind. Gleiches gilt für die Werkstoffe, aus denen der Kunststoffkernbehälter 1 hergestellt ist.In the embodiment shown, only the connection ring 3 has a groove open in the direction of the collar 2, which contains a sealing ring 2 pressed against the collar 2 in rubber. Due to the changing operating pressure relative displacements of the plastic core container 1 with respect to the connecting ring 3 are thereby absorbed elastically, without causing leakage. Of course, it is also possible, if necessary, to bring several such O-directional seals for use and, for example, alternatively or supplementally accommodate in corresponding grooves of the support flange. The security against possible leaks can thereby be further increased. Furthermore, the O-ring seals may consist of sealing materials that are particularly adapted to the physical and / or chemical conditions of use. The same applies to the materials from which the plastic core container 1 is made.
Der Bund 5 und der Kunststoffkernbehälter 1 sind gemeinsam von einer von einer Stützhülle 7 aus einem Faserverbundstoff zumindest anteilig umschlossen, wobei zwischen dem Bund 5 und dem Kunststoffkernbehälter 1 in dem sich an den Außenumfang radial nach innen anschließenden Bereich ein sich in radialer Richtung nach außen keilförmig erweiternder Abstand vorgesehen ist, wobei der durch den Abstand gebildete Spalt durch einen plastisch verformbaren Pufferring 8 aus polymerem Werkstoff ausgefüllt ist und wobei der Pufferring 8 eine Außenkontur aufweist, die die sich axial anschließenden Außenkonturen des Kunststoffkernbehälters 1 und des Bundes 5 unter Vermeidung einer sprunghaften Richtungsänderung ineinanderübergehend verbindet. Die Stützhülle 7 aus dem Faserverbundwerk- stoff umschließt die sich insgesamt ergebende Außenkontur mit der statisch jeweils erforderlichen Dicke, wobei die stimseitigen Enden einstückig ineinanderübergehend übergriffen sind. Der Druckbehälter weist dadurch nicht nur in radialer sondern auch in axialer Richtung die erforderliche Festigkeit auf. Die radiale Weite des Pufferrings 8 nimmt mindestens 50% der radialen Weite des Bundes 5 ein.The collar 5 and the plastic core container 1 are at least partially enclosed by one of a support shell 7 of a fiber composite, wherein between the collar 5 and the plastic core container 1 in which the outer circumference radially inwardly adjoining region in a wedge-shaped outward radial direction widening distance is provided, wherein the gap formed by the gap is filled by a plastically deformable buffer ring 8 of polymeric material and wherein the buffer ring 8 has an outer contour, the axially adjacent outer contours of the plastic core container 1 and the Federal 5 while avoiding a sudden change in direction connecting into each other. The supporting sheath 7 from the fiber composite Fabric surrounds the overall resulting outer contour with the static thickness required in each case, wherein the front ends are integrally overlapped in one another. The pressure vessel thereby has the required strength not only in the radial but also in the axial direction. The radial width of the buffer ring 8 occupies at least 50% of the radial width of the collar 5.
Der metallische Bund 5 endet am radialen Außenrand in einer umlaufenden Nase 9, die den polymeren Pufferring 8, vorliegend aus Polyamid bestehend, radial außenseitig in einem Teilbereich umschließt. Hierdurch wird eine gute Führung des Pufferrings erhalten, die dazu beiträgt, eine fehlerhafte Montage oder eine druckbedingte Relativverlagerung in bezug auf den Kunststoffkernbehälter 1 zu verhindern.The metallic collar 5 terminates at the radial outer edge in a circumferential nose 9, which surrounds the polymeric buffer ring 8, consisting here of polyamide, radially outside in a partial area. As a result, a good guidance of the buffer ring is obtained, which helps to prevent incorrect assembly or a pressure-related relative displacement with respect to the plastic core container 1.
Der die Stützhülle 7 bildende Faserverbundstoff enthält einander überkreuzende, in Kunstharz eingebettete Faserstränge, die in mehreren Lagen übereinandergeschichtet sind und die der Längsrichtung unter einem Winkel von plus/minus 10 bis 90 " zugeordnet sind, vorteilhaft unter einem Winkel von 35 - 88°. Die Wickelwinkel innerhalb einer jeden Schicht können identisch sein. Sie weichen in den aufeinanderfolgenden Schichten voneinander ab, um den erforderlichen Festigkeitsanforderungen zu genügen.The fiber composite forming the support sheath 7 comprises interlaced fiber-embedded fiber strands stacked in multiple layers and associated with the longitudinal direction at an angle of plus / minus 10 to 90 ", advantageously at an angle of 35-88 ° Winding angles within each layer may be identical, differing in successive layers to meet the required strength requirements.
Die in dem Faserverbundstoff enthaltenen Faserstränge enthalten Fasern aus Kohlenstoff, die in vorgespanntem Zustand in eine Kunstharzmatrix aus Epoxidharz eingebettet sind.The fiber strands contained in the fiber composite contain carbon fibers which are embedded in a resin matrix of epoxy resin in a prestressed state.
Bei dem Ausführungsbeispiel besteht der Kunststoffkernbehälter und der Puffemng aus Polyamid. Die Verwendung abweichender, polymerer Werkstoffe ist ebenfalls möglich. Bei dem gezeigten Druckbehälter hat der Kunststoffkernbehälter einen Innendurchmesser von 240 mm und der Anschlussring einen solchen von 140 mm. Daraus errechnet sich ein Polverhältnis, d.h. ein Verhältnis aus dem Innendurchmesser des Kunststoffkernbehälters 1 und dem Innendurchmesser des Anschlussringes 3 von 58 %, d.h. ein Wert, der größer als 50 % ist, was es erleichtert, Einbauten in dem Kunststoffkernbehälter unterzubringen. In the embodiment, the plastic core container and the Puffemng made of polyamide. The use of dissimilar, polymeric materials is also possible. In the pressure vessel shown, the plastic core container has an inner diameter of 240 mm and the connecting ring one of 140 mm. This results in a pole ratio, ie a ratio of the inner diameter of the plastic core container 1 and the inner diameter of the connecting ring 3 of 58%, ie a value greater than 50%, which makes it easier to accommodate internals in the plastic core container.

Claims

Patentansprüche claims
1. Druckbehäiter zur Speicherung von flüssigen oder gasförmigen Medien, umfassend einen Kunststoffkernbehälter (1) mit zumindest einem Kragen (2), der in dem radialen Zwischenraum zwischen einem darin eingesetzten Anschiussring (3) für eine Druckleitung und einem den Kragen (2) außenseitig umschließenden Stützflansch (4) mit einem radial nach außen vorstehenden Bund (5) angeordnet ist, wobei der Anschlussring (3) und/oder der Stützflansch (4) aus Metall bestehen und zumindest eine in Richtung des Kragens (2) offene Nut aufweisen, die einen an den Kragen (2) dichtend angepressten O-Ring (6) enthält und wobei zumindest der Kunststoffkernbehälter (1) und der Bund (5) von einer Stützhülle (7) aus einem Faserverbundstoff zumindest anteilig umschlossen sind, dadurch gekennzeichnet, dass zwischen dem Bund (5) und dem Kunststoffkernbehälter (1) zumindest in dem sich an den Außenumfang radial nach innen anschließenden Bereich ein sich in radialer Richtung nach außen keilförmig erweiternder Abstand vorgesehen ist, dass der durch den Abstand gebildete Spalt durch einen plastisch verformbaren Pufferring (8) aus polymerem Werkstoff ausgefüllt ist und dass der Pufferring (8) eine Außenkσntur aufweist, die die sich axial anschließenden Außenkonturen des Kunststoffkernbehälters (1) und des Bundes (5) unter Vermeidung einer sprunghaften Richtungsänderung ineinanderübergehend verbindet.1. Druckbehäiter for storing liquid or gaseous media, comprising a plastic core container (1) with at least one collar (2) in the radial gap between a Anschiussring used therein (3) for a pressure line and the collar (2) on the outside enclosing Support flange (4) with a radially outwardly projecting collar (5) is arranged, wherein the connecting ring (3) and / or the support flange (4) consist of metal and at least one in the direction of the collar (2) open groove, the one to the collar (2) sealingly pressed O-ring (6) and wherein at least the plastic core container (1) and the collar (5) by a support shell (7) of a fiber composite material are at least partially enclosed, characterized in that between the collar (5) and the plastic core container (1), at least in the region adjoining the outer circumference radially inwardly, wedge-shaped in a radially outward direction g is provided widening distance that the gap formed by the gap is filled by a plastically deformable buffer ring (8) made of polymeric material and that the buffer ring (8) has a Außenkσntur, the axially adjacent outer contours of the plastic core container (1) and the Federal (5) while avoiding a sudden change in direction connects into each other.
2. Druckbehälter nach Anspruch 1 , dadurch gekennzeichnet, dass der Bund (5) am radialen Außenrand in einer umlaufenden Nase (9) endet, die den Pufferring (8) in einem Teilbereich radial außenseitig umschließt. 2. Pressure vessel according to claim 1, characterized in that the collar (5) ends at the radial outer edge in a circumferential nose (9) which surrounds the buffer ring (8) in a partial region radially on the outside.
3. Druckbehälter nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der die Stützhülle (7) bildende Faserverbundstoff einander überkreuzende, in Kunstharz eingebettete Faserstränge enthält, die sich in Längs- und Umfangsrichtung erstrecken.3. Pressure vessel according to claim 1 or 2, characterized in that the supporting sheath (7) forming fiber composite contains each other crossing, embedded in synthetic fiber strands extending in the longitudinal and circumferential directions.
4. Druckbehälter nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der die Stützhülle (7) bildende Faserverbundstoff einander überkreuzende Faserstränge umfasst, die der Längs- und Umfangsrichtung geneigt zugeordnet sind.4. Pressure vessel according to one of claims 1 to 3, characterized in that the support shell (7) forming fiber composite material comprises cross-over fiber strands, which are associated with the longitudinal and circumferential direction inclined.
5. Druckbehälter nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die in dem Faserverbundstoff enthaltenen Faserstränge Glasfasern, Kohlenstofffasern und/oder Aramidfasern umfassen.5. Pressure vessel according to one of claims 1 to 4, characterized in that the fiber strands contained in the fiber composite glass fibers, carbon fibers and / or aramid fibers.
6. Druckbehälter nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass Kragen (2), der Anschlussring (3) Stützflansch (4) zumindest in den einander zugewandten Oberflächenbereichen durch gewinderillenfreie Zylinderflächen begrenzt sind.6. Pressure vessel according to one of claims 1 to 5, characterized in that collar (2), the connecting ring (3) support flange (4) are delimited by at least in the mutually facing surface areas by gewillenillenfreie cylindrical surfaces.
7. Druckbehälter nach einem der Ansprüche 1 bis 6 dadurch gekennzeichnet, dass O-Ring (6) aus elastomerem Werkstoff besteht.7. Pressure vessel according to one of claims 1 to 6, characterized in that the O-ring (6) consists of elastomeric material.
8. Druckbehäiter nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Kunststoffkernbehälter und/oder der Pufferring aus Polyamid besteht.8. Druckbehäiter according to one of claims 1 to 7, characterized in that the plastic core container and / or the buffer ring consists of polyamide.
9. Druckbehälter nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass das Verhältnis des Öffnungsquerschnittes einer stirnseitigen Öffnung in Bezug zum Innendurchmesser des Kunststoffkernbehälters mindestens 30% beträgt. 9. Pressure vessel according to one of claims 1 to 8, characterized in that the ratio of the opening cross-section of an end opening with respect to the inner diameter of the plastic core container is at least 30%.
10. Druckbehälter nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass das Verhältnis des Öffnungsquerschnittes einer stirnseitigen Öffnung in Bezug zum Innendurchmesser des Kunststoffkernbehälters mindestens 50% beträgt. 10. Pressure vessel according to one of claims 1 to 9, characterized in that the ratio of the opening cross-section of an end opening with respect to the inner diameter of the plastic core container is at least 50%.
PCT/EP2006/012567 2006-01-07 2006-12-28 Pressure vessel for storing liquid or gaseous media WO2007079971A1 (en)

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EP06841190A EP1989477B1 (en) 2006-01-07 2006-12-28 Pressure vessel for storing liquid or gaseous media
AT06841190T ATE431521T1 (en) 2006-01-07 2006-12-28 PRESSURE TANK FOR STORING LIQUID OR GASEOUS MEDIA
DE502006003752T DE502006003752D1 (en) 2006-01-07 2006-12-28 PRESSURE RESERVES FOR STORING LIQUID OR GASEOUS MEDIA

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DE102006001052A DE102006001052A1 (en) 2006-01-07 2006-01-07 Pressure container for storing fluid or gaseous medium, has gap formed between collar and core container, and filled with buffer ring that has outer contour connecting contiguous outer contours of core container and collar

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Cited By (20)

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US8501077B2 (en) 2010-06-15 2013-08-06 GM Global Technology Operations LLC Process and apparatus for forming an inner vessel liner for a pressure vessel
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US9777888B2 (en) 2012-06-20 2017-10-03 Hypercomp Engineering, Inc. Port/liner assembly method for pressure vessel
US9046220B2 (en) 2012-06-20 2015-06-02 Hypercomp Engineering, Inc. Port/liner assembly for pressure vessel
DE102014103386A1 (en) 2013-03-15 2014-09-18 GM Global Technology Operations LLC (n. d. Ges. d. Staates Delaware) A method and apparatus for manufacturing a fuel storage tank having a liner and an inner pocket for a fuel storage system
USD746942S1 (en) 2014-10-21 2016-01-05 Advanced Lightweight Engineering B.V. Low weight pressure vessel
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EP1989477A1 (en) 2008-11-12
DE102006001052A1 (en) 2007-09-06

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