EP2757302A1 - Récipient sous pression et procédé de fabrication d'un récipient sous pression - Google Patents

Récipient sous pression et procédé de fabrication d'un récipient sous pression Download PDF

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Publication number
EP2757302A1
EP2757302A1 EP14150203.9A EP14150203A EP2757302A1 EP 2757302 A1 EP2757302 A1 EP 2757302A1 EP 14150203 A EP14150203 A EP 14150203A EP 2757302 A1 EP2757302 A1 EP 2757302A1
Authority
EP
European Patent Office
Prior art keywords
wall layer
cylinder tube
pressure vessel
pressure
end region
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.)
Withdrawn
Application number
EP14150203.9A
Other languages
German (de)
English (en)
Inventor
Helmut Schürmann
Stephan Löhr
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.)
Technische Universitaet Darmstadt
Original Assignee
Technische Universitaet Darmstadt
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 Technische Universitaet Darmstadt filed Critical Technische Universitaet Darmstadt
Publication of EP2757302A1 publication Critical patent/EP2757302A1/fr
Withdrawn legal-status Critical Current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
    • F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
    • F17C1/04—Protecting sheathings
    • F17C1/06—Protecting sheathings built-up from wound-on bands or filamentary material, e.g. wires
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0114—Shape cylindrical with interiorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0619—Single wall with two layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F17C2203/0665—Synthetics in form of fibers or filaments radially wound
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F17C2203/0668—Synthetics in form of fibers or filaments axially wound
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/234—Manufacturing of particular parts or at special locations of closing end pieces, e.g. caps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/031—Air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG

Definitions

  • the invention relates to a pressure vessel for receiving pressurized fluids with a cylinder tube and with a cylinder tube at a first end pressure-tight closing bottom, wherein the cylinder tube and the bottom are made separately and interconnected, and wherein the cylinder tube is a first wall layer of a Having fiber-plastic composite material.
  • Pressure vessels are needed for a variety of applications.
  • a compressible fluid such as natural gas or compressed air can be stored, transported and kept ready for later use.
  • a suitable fluid such as gas
  • a hydraulic cylinder mechanical work can be performed whereby a little compressible fluid such as hydraulic oil can be pressurized to transfer the pressure and to drive or displace a piston or plunger.
  • Pressure vessels are known in which the opposing bottoms are formed substantially in one piece with a substantially hollow cylindrical central part.
  • a conical or approximately elliptical shape of opposite end portions is considered to be particularly favorable for achieving a high compressive strength.
  • each own tools must be used, so there is no significant flexibility in the design.
  • a compressed air tank made of a fiber-reinforced plastic in which a cylinder tube is glued to a separately manufactured bottom or lid.
  • the cylinder tube and the base have, in an overlapping fastening region, protruding formations and recesses, by means of which an additional positive locking is produced.
  • the compressive strength of such pressure vessels significantly depend on the compressive strength of the cylinder tube and the connection of the bottom with the cylinder tube.
  • the cylinder tube could have a greater wall thickness or be reinforced with elements that are rigid in particular in the radial direction.
  • a simple and cost-effective fixing of the soil is made more difficult, since often a temporary or permanent deformation of the cylinder tube for fixing the soil is desirable and the increasing wall thickness is accompanied by an increasing bending strength, which hinders deformation.
  • the fiber-plastic composite material of the first wall layer has a predominantly axial orientation of fibers
  • the cylinder tube has a second wall layer with a predominantly oriented in the circumferential direction fiber orientation
  • an externally fitting annular Pressure element presses an end portion of the first wall layer radially to a peripheral edge surface of the bottom.
  • a fiber-plastic composite material having predominantly axially oriented fibers is a material having fibers embedded in a plastic matrix having a fiber angle of from 0 ° to about ⁇ 30 ° relative to the central axis of the cylinder tube.
  • a fiber orientation is referred to, in which the fibers have a fiber angle of ⁇ 60 ° to 90 ° relative to the central axis of the cylinder tube.
  • the second wall layer does not cover the end region of the first wall layer.
  • the invention provides that in the radial direction rigid second wall layer with an orientation of the Fibers in the circumferential direction not covered the end.
  • the end region is then formed by the first wall layer, which contains predominantly axially oriented fibers which have a comparatively small radial bending stiffness and are therefore deformed by the pressure of the pressure element to the ground and pressed against the peripheral edge surface of the soil. In this way, a high-pressure-resistant connection of the cylinder tube to the floor can be accomplished with simple structural means.
  • the annular pressure element is a pressed-on circumferential bandage made of a fiber-plastic composite material with an orientation of the fibers predominantly in the circumferential direction.
  • a circumferential bandage can be produced inexpensively, for example, by conventional winding methods.
  • An inner diameter of the circumferential bandage can be set slightly smaller than an outer diameter of the cylinder tube, so that after a slipping over of the circumferential bandage over the end region of the cylinder tube, a radially inwardly directed contact pressure is generated.
  • the circumferential bandage can be fixed, for example, by means of an adhesive in the end region of the cylinder tube.
  • the bottom is defined by the frictional engagement with the cylinder tube created by the circumferential bandage that presses the end portion of the cylinder tube against the peripheral edge surface of the bottom.
  • the end region of the first wall layer has a tapering outer diameter.
  • the end region of the first wall layer can engage behind the floor and thereby prevent the floor from slipping out of the cylinder tube.
  • the end region of the first wall layer is cone-shaped.
  • a conical configuration of the end region can be accomplished comparatively easily, since the second wall layer, which has predominantly circumferentially arranged fibers and is accordingly particularly rigid in the radial direction, does not extend into the end region.
  • the end region is formed by the first wall layer, which can be radially deformed due to the axial alignment of the fibers with comparatively small forces in order to achieve a conical shape.
  • the shaping of the peripheral edge surface of the bottom is expediently adapted to the conical shape of the end region of the first wall layer, so that when the end region is pressed against the peripheral edge surface of the bottom, a large-area contact surface with a high frictional engagement is created.
  • the inclination of the conical end region or its angle relative to the central axis of the Cylinder tube is advantageously set so that the bottom is set self-locking on the conically tapered end.
  • the conical end region would be widened outwards, so that the contact pressure of the pressure element acts more on the end region and via an increased contact pressure of the pressure element, the frictional fixing of the soil in the end region is reinforced until the contact pressure exceeds the pressure load again and a further axial displacement of the soil is prevented.
  • the pressure element has a wedge-shaped cross-sectional area adapted to the shape of the end region of the first wall layer.
  • the shape of the pressure element supports the conical shape of the end region and supports the end region over a large area to the outside.
  • the pressure element has a taper at an end facing the second wall layer.
  • the pressure element usually has a greater thickness or wall thickness than the second wall layer, so that by a taper of the Pressure element in the direction of the second wall layer can be made an adjustment of the wall thickness and, consequently, a corresponding approximation of the bending stiffness.
  • a particularly uniform transition is obtained by the pressure element has an overlapping a second layer overlapping Schaftung in an overlap region.
  • a relatively large contact surface between the pressure element and the second wall layer is made possible by the overlapping Suftung, which is favorable for an optionally desired large-area bonding.
  • This permeation-inhibiting coating can for example consist of a thermoplastic material.
  • the coating may contain additional additives to improve important properties such as surface roughness, material resistance or abrasion resistance for the particular application.
  • the cylinder tube In order to influence the bending stiffness of the cylinder tube, provision can be made for the cylinder tube to have a separating layer arranged between the first wall layer and the second wall layer. Furthermore, it may be for certain application areas be advantageous that the pressure vessel has a plurality of first wall layers and / or a plurality of second wall layers and optionally a plurality of separating layers.
  • the invention also relates to a process for the production of a pressure vessel having the aforementioned properties.
  • a cylinder tube with a first wall layer and with a second wall layer is produced by fiber-containing semifinished product, which is heated together with a thermoplastic matrix material in a centrifugal mold and spin-spun.
  • the thermoplastic matrix material can be introduced separately as a thermoplastic amount of material or in the form of a tube of thermoplastic material in the Schleuderkokille. It is also conceivable and often advantageous if the fiber-containing semi-finished product already contains the thermoplastic material and impregnated, for example, the fibers of the fiber-containing semi-finished product with a suitable thermoplastic material, or in one embedded thermoplastic material. Cylinder tubes with different wall layers of high quality and precision of shaping can be produced by the forming effected at a sufficiently high temperature and number of revolutions in the spinning mold.
  • an end region of the cylinder tube is predetermined by shaped parts attached to the spinning mold and limiting the axial dimensions of the first wall layer and the second wall layer.
  • the mold parts can be annular and fixed at a suitable location on an inner wall within the centrifugal mold. A cutting to length of the cylinder tube produced in the spinning mold is just as little necessary with a suitable design and arrangement of the molded parts as a costly reworking of the end portion and the surfaces of the cylinder tube.
  • FIG. 1 schematically illustrated only in an end region pressure vessel 1 has a cylinder tube 2 with a nearly over the entire container length hollow cylindrical shape.
  • the cylinder tube 2 is formed by a radially inward first wall layer 3 and an outer second wall layer 4.
  • a separately manufactured bottom 6 is fixed, which has an inwardly directed curvature 7.
  • an end portion 9 of the first wall layer 3 is pressed against a peripheral edge surface 10 of the bottom 6 and the bottom fixed non-positively on the cylinder tube 2.
  • the first wall layer 3 consists of a fiber-plastic composite material, wherein the quasi-endless fibers are predominantly aligned in the axial direction.
  • the first wall layer 3 therefore has a particularly high mechanical strength in the axial direction.
  • the second wall layer 4 is also made of a fiber-plastic composite material, wherein the quasi-endless fibers are oriented predominantly in the circumferential direction. Consequently, the second wall layer 4 has a particularly high mechanical strength and a high flexural rigidity in the radial direction.
  • the pressure element 8 is also made of a wound fiber-plastic composite material forming a circumferential bandage, with sufficient bias from the outside on the end portion 5 of the cylinder tube 2, or on the end portion 9 of the first wall layer 3, the end portion. 5 of the cylinder tube 2 forms, is pushed. Since there is no second wall layer 4 in the end region 5 of the cylinder tube 2, which is largely responsible for the radial bending stiffness, the end region 5 of the first wall layer 3 can be converted to a conical shape without much effort and to the conical shape of an inner wall 11 of Circumferential bandage to be adjusted. Also, the peripheral edge surface 10 of the bottom 6 has a conical shape adapted thereto.
  • the end portion 5 of the cylinder tube 2 may be disposed on an inner side of the first wall layer 3 to reduce the permeability of the cylinder tube 2, a permeation-inhibiting coating 12.
  • the end region 9 of the first wall layer 3 protrudes in the axial direction both beyond the second wall layer 4 and beyond the permeation-inhibiting coating 12 and forms the end region 5 of the cylinder tube 2, at which the bottom 6 is fixed.
  • the projecting end portion 9 of the first wall layer 3 may be conically deformed either in advance or by the attachment of the pressure member 8 to form an in Fig. 2 to obtain only schematically and dashed shape shown.
  • Fig. 3 schematically a developed lateral surface of the end portion 5 of the cylinder tube 2, and the end portion 9 of the first wall layer 3 is shown.
  • the recesses 13 also have curved side edges.
  • the shape of the recesses 13 is predetermined so that in the self-adjusting, or predetermined by the pressure element 8 conical shape an overlap-free, but also gap-free arrangement of tongues 18 formed by the recesses 13 is generated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP14150203.9A 2013-01-21 2014-01-06 Récipient sous pression et procédé de fabrication d'un récipient sous pression Withdrawn EP2757302A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013100591.8A DE102013100591A1 (de) 2013-01-21 2013-01-21 Druckbehälter sowie Verfahren zum Herstellen eines Druckbehälters

Publications (1)

Publication Number Publication Date
EP2757302A1 true EP2757302A1 (fr) 2014-07-23

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EP14150203.9A Withdrawn EP2757302A1 (fr) 2013-01-21 2014-01-06 Récipient sous pression et procédé de fabrication d'un récipient sous pression

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EP (1) EP2757302A1 (fr)
DE (1) DE102013100591A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016110803A1 (de) 2016-06-13 2017-12-14 Audi Ag Druckbehälter
WO2018146053A1 (fr) * 2017-02-07 2018-08-16 Liebherr-Components Kirchdorf GmbH Dispositif cylindre-piston comportant au moins un tube intérieur et au moins un tube extérieur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015007047B4 (de) 2015-05-29 2017-10-19 Audi Ag Verfahren und Vorrichtung zur Herstellung eines mit Druck beaufschlagbaren Behälters

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331021A1 (de) 1982-09-07 1984-03-08 Fischer GmbH, 4910 Ried im Innkreis Stangenfoermiger hohlkoerper zur uebertragung von druck-, zug-, biege- und verdrehkraeften, verfahren zu seiner herstellung sowie vorrichtung zur durchfuehrung des beschriebenen verfahrens
US4865210A (en) * 1988-12-23 1989-09-12 Endeco Inc. Pressure vessel with improved external seal
DE3922577A1 (de) 1989-07-10 1991-01-24 Asea Gmbh Druckluftbehaelter aus faserverstaerktem kunststoff sowie verfahren und vorrichtung zu dessen herstellung
EP1085243A1 (fr) 1998-07-17 2001-03-21 Linnemann-Schnetzer GmbH Réservoir pour fluides sous pression
DE20107628U1 (de) * 2001-05-04 2002-09-12 Funck Ralph Druckbehälter
DE10246868A1 (de) * 2002-10-08 2004-04-22 Funck, Ralph, Dr. Druckbehälter und Verfahren zu dessen Herstellung
DE102006006902A1 (de) 2006-02-09 2007-08-16 Gräfenthaler Kunststofftechnik GmbH Druckbehälter aus Kunststoff und Verfahren zu seiner Herstellung
WO2010022927A1 (fr) * 2008-08-27 2010-03-04 Armoline Gmbh Réservoir haute pression
US20110056960A1 (en) * 2007-11-13 2011-03-10 Societe De Technologie Michelin Pressurized Fluid Tank and Method and Apparatus for Producing One Such Tank
DE102011105627A1 (de) * 2010-07-02 2012-01-05 Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) Verbund-Druckbehälter und Verfahren zumZusammenbau desselben

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331021A1 (de) 1982-09-07 1984-03-08 Fischer GmbH, 4910 Ried im Innkreis Stangenfoermiger hohlkoerper zur uebertragung von druck-, zug-, biege- und verdrehkraeften, verfahren zu seiner herstellung sowie vorrichtung zur durchfuehrung des beschriebenen verfahrens
US4865210A (en) * 1988-12-23 1989-09-12 Endeco Inc. Pressure vessel with improved external seal
DE3922577A1 (de) 1989-07-10 1991-01-24 Asea Gmbh Druckluftbehaelter aus faserverstaerktem kunststoff sowie verfahren und vorrichtung zu dessen herstellung
EP1085243A1 (fr) 1998-07-17 2001-03-21 Linnemann-Schnetzer GmbH Réservoir pour fluides sous pression
DE20107628U1 (de) * 2001-05-04 2002-09-12 Funck Ralph Druckbehälter
DE10246868A1 (de) * 2002-10-08 2004-04-22 Funck, Ralph, Dr. Druckbehälter und Verfahren zu dessen Herstellung
DE102006006902A1 (de) 2006-02-09 2007-08-16 Gräfenthaler Kunststofftechnik GmbH Druckbehälter aus Kunststoff und Verfahren zu seiner Herstellung
US20110056960A1 (en) * 2007-11-13 2011-03-10 Societe De Technologie Michelin Pressurized Fluid Tank and Method and Apparatus for Producing One Such Tank
WO2010022927A1 (fr) * 2008-08-27 2010-03-04 Armoline Gmbh Réservoir haute pression
DE102011105627A1 (de) * 2010-07-02 2012-01-05 Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) Verbund-Druckbehälter und Verfahren zumZusammenbau desselben

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016110803A1 (de) 2016-06-13 2017-12-14 Audi Ag Druckbehälter
DE102016110803B4 (de) 2016-06-13 2021-11-18 Audi Ag Druckbehälter
WO2018146053A1 (fr) * 2017-02-07 2018-08-16 Liebherr-Components Kirchdorf GmbH Dispositif cylindre-piston comportant au moins un tube intérieur et au moins un tube extérieur

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