Nothing Special   »   [go: up one dir, main page]

EP1710486A1 - Vessel and method for fabricating a vessel - Google Patents

Vessel and method for fabricating a vessel Download PDF

Info

Publication number
EP1710486A1
EP1710486A1 EP05007635A EP05007635A EP1710486A1 EP 1710486 A1 EP1710486 A1 EP 1710486A1 EP 05007635 A EP05007635 A EP 05007635A EP 05007635 A EP05007635 A EP 05007635A EP 1710486 A1 EP1710486 A1 EP 1710486A1
Authority
EP
European Patent Office
Prior art keywords
pressure vessel
composite pressure
composite
jacket
unit according
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Withdrawn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
EP05007635A
Other languages
German (de)
French (fr)
Inventor
Walter Michelis
Stefan Limke
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.)
mcs International GmbH
Original Assignee
mcs International 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 mcs International GmbH filed Critical mcs International GmbH
Priority to EP05007635A priority Critical patent/EP1710486A1/en
Publication of EP1710486A1 publication Critical patent/EP1710486A1/en
Withdrawn legal-status Critical Current

Links

Images

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
    • F17C1/16—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials
    • 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
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0604—Liners
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0621—Single wall with three 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
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0624—Single wall with four or more 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
    • F17C2203/066—Plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0103—Exterior arrangements
    • F17C2205/0115—Dismountable protective hulls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/0126—One vessel
    • 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
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/013—Two or more vessels
    • 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
    • F17C2205/0157—Details of mounting arrangements for transport
    • F17C2205/0165—Details of mounting arrangements for transport with handgrip
    • 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
    • F17C2205/018—Supporting feet
    • 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
    • F17C2205/0192—Details of mounting arrangements with external bearing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0305—Bosses, e.g. boss collars
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • 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
    • F17C2205/0388—Arrangement of valves, regulators, filters
    • F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
    • F17C2205/0397—Arrangement of valves, regulators, filters in direct contact with the pressure vessel on both sides of the pressure vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/232—Manufacturing of particular parts or at special locations of walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—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
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/013—Reducing manufacturing time or effort
    • 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
    • F17C2270/02—Applications for medical applications
    • F17C2270/025—Breathing

Definitions

  • the invention relates to a pressure vessel unit with at least one composite pressure vessel and a method for producing such a pressure vessel unit.
  • the object of the invention is to disclose a pressure tank unit and a method for producing a pressure tank unit, wherein or in which the composite pressure tank is better protected against impact while reducing production costs.
  • the damping element made of plastic foam, in particular polyurethane foam, as a composite pressure vessel under zoned recess of at least one neck completely enveloping coat is formed.
  • composite pressure vessels for receiving compressed natural gas (CNG) have two ports. In this case, in some areas recesses are required on both neck pieces.
  • a jacket designed according to the invention not only protects the cap regions of the composite pressure vessel against impact, but also the cylindrical longitudinal section of the composite pressure vessel lying between the cap regions. This has the advantage that in principle no further protective measures are required in the area of the cylindrical length section in order to protect the composite pressure vessel against damage.
  • the jacket is in particular formed in one piece and surrounds the composite pressure vessel in a form-fitting manner. This allows the jacket can be easily removed from the composite pressure vessel in case of damage and then rebuilt by foaming.
  • an adhesive release layer is at least partially disposed between the shell and the composite pressure vessel, which is in particular a paint applied to the composite pressure vessel lacquer.
  • This paint which acts as an adhesive release layer for the plastic foam, is easy to process and simplifies subsequent repairs or replacement of the jacket considerably.
  • the production cost would be higher.
  • a further advantage of the adhesive release layer is that gases emerging through permeation from a plastic liner can be distributed between the jacket and the composite pressure vessel and can emerge in the neck in particular in the neck region or in openings provided for this purpose. As a result, local accumulations of gases, which could lead to bulging in the mantle, are avoided.
  • a significant advantage of the pressure vessel unit according to the invention is that the jacket can take any outer contour, while the composite pressure vessel can continue to maintain its generally cylindrical shape. This also has the advantage that the occurring in composite pressure vessels manufacturing tolerances of ⁇ 3% in length and diameter can be easily compensated. This means that the composite pressure vessel with the jacket completely enclosing it basically has the given desired outer contour, and in a much narrower tolerance range than is possible with an uncoated composite pressure vessel. This in turn results in an advantage in the attachment of the pressure vessel unit to a support frame. The state of the art is that tensioning straps compensate for the different diameters of the composite pressure vessels.
  • tensioning straps can also be used for fixation, however, other fastening possibilities are also conceivable, in particular particularly secure clip or snap connections, which hitherto could not be used due to the narrower tolerances.
  • the complete sheathing opens up new constructional scope.
  • the jacket contoured, z. B. polygonal for example, to prevent rolling of a horizontal pressure tank unit. But this can also be realized by evenly on the outer circumference and extending in the longitudinal direction of its cylindrical length ribs, which also prevent unhindered rolling at a corresponding distance.
  • the ribs do not need to be continuous. It is sufficient if the starting cross-section is at least partially out of round, be it by elongated ribs or individual local projections. In addition, can be formed on the mantle a footprint to turn off the pressure vessel unit can.
  • a supporting frame can be embedded directly in the jacket.
  • the support frame is also fixed captive on the composite pressure vessel due to the positive connection of the shell with the composite pressure vessel, so that open up different attachment options of the pressure vessel unit.
  • the support frame may be, for example, a metal or plastic frame comprising certain anchoring points on the outer cross section of the shell. In this way, the pressure tank unit according to the invention can be attached to different support devices.
  • the plastic foam is in particular an integral foam, i. that a cellular shell core is enclosed with a peripheral outer skin becoming denser to the edge zone. Ideally, the density distribution is equal to a parabola. Integral foams have the advantage that they can withstand greater mechanical stress on the outer shell of the shell, while the shell core has a damping effect due to its cellular structure. In particular, integral polyurethane foams are used.
  • the composite pressure vessel can be both a breathing air bottle and be provided for receiving compressed natural gas (CNG).
  • CNG compressed natural gas
  • the subject of claim 12 is a method for producing such a pressure vessel unit, in which a composite pressure vessel coated at least partially with an adhesive release layer for foaming inserted into a hollow mold and under zonal recess of a neck of the composite pressure vessel to form a shell completely with a plastic foam, especially polyurethane foam, is coated.
  • a support frame can be inserted into the hollow mold before the foaming of the composite pressure vessel.
  • Polyurethane foam is both light and sufficiently shock absorbent, so that this material is preferably suitable for use in combination with composite pressure vessels.
  • FIG. 1 shows in a longitudinal section a pressure vessel unit 1 designed as a respiratory protective bottle with a composite pressure vessel 2 and a jacket 3 surrounding the composite pressure vessel 2.
  • the structure of the composite pressure vessel is eg from the DE 197 51 411 C1 known. It consists of an inner liner 4, which is surrounded by a fiber winding 5.
  • the composite pressure vessel 2 has in its neck areas arranged neck pieces 6, 7, wherein the upper level in the image plane neck piece 6 is provided on the inside with a threaded portion 8 for fastening a valve.
  • the jacket 3 extends from pole cap to pole cap and the entire respirator bottle 1, with the exception of the connection region 9 of the neck piece 6 completely enveloped, so that an all-round shock protection is present.
  • a thin adhesive release layer is located between the shell 3 and the composite pressure vessel 2, a thin adhesive release layer.
  • the adhesive release layer is a paint applied to the composite pressure vessel 2, to which the polyurethane foam sheath 3 does not adhere.
  • At the lower pole cap of the respirator 1 of the jacket 3 is provided with a footprint 10 on which the respirator 1 can be turned off.
  • the wall thickness W of the shell 3 is constant. The wall thickness W is chosen only as an example and can be varied in coordination with the expected loads within wide limits.
  • FIGS. 2 to 4 show different embodiments of the outer cross-section of a jacket 3a, 3b, 3c.
  • the jacket 3a is hexagonal in its outer cross section.
  • two opposite parallel surfaces 12 are provided on an otherwise circular outer cross-section of a jacket 3b.
  • FIG. 4 shows an embodiment with six ribs 13 distributed over the outer circumference, on an otherwise circular outer cross-section of the jacket 3c.
  • FIGS 5 and 6 show a variant of a respirator 14, in which in the jacket 15, a support frame 16 is embedded.
  • two brackets 17 are provided by way of example in two different height levels, which emerge on a newly designed bearing surface 18.
  • the over the support surface 18 projecting portions of the bracket 17 are as Lugs 19 configured to serve as attachment means for the respirator 14.
  • FIGS. 7 and 8 show devices 20, 21 for producing a pressure vessel unit according to the invention.
  • the composite pressure vessel is placed in an at least two-part mold, which is filled after closing with polyurethane foam. This can be formed with high manufacturing accuracy, a composite pressure vessel completely enveloping coat, which is designed octagonal in this embodiment.
  • Circularly arranged heating elements 22 ensure the temperature level required for the production of the shell within the molding tool.
  • FIG. 7 shows how a coated composite pressure vessel 25 still lies in a lower mold half 23. Its outer contour corresponds exactly to the contour of the mold cavity of the mold halves.
  • the device 21 of Figure 8 differs from that of Figure 7 only in that the tool halves are not pivoted against each other, but in the direction of arrow P are opened and closed in a rectilinear motion.

Landscapes

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

Abstract

The unit has a shock-absorbing damping unit that is fastened at a composite-pressure vessel (2) and is made of plastic foam e.g. a polyurethane-foam. The damping unit is designed as a casing (3) that completely and positively encloses the vessel below a recess of a throat part (6). An adhered separating section is arranged between the casing and the vessel. An external cross section of the casing is polygonal. An independent claim is also included for a method for producing a pressure vessel unit with a composite-pressure vessel.

Description

Die Erfindung betrifft eine Druckbehältereinheit mit wenigstens einem Composite-Druckbehälter sowie ein Verfahren zur Herstellung einer solchen Druckbehältereinheit.The invention relates to a pressure vessel unit with at least one composite pressure vessel and a method for producing such a pressure vessel unit.

Aus der DE 197 51 411 C1 ist ein Composite-Druckbehälter zur Speicherung von gasförmigen Medien unter Druck mit einem Liner aus Kunststoff bekannt, bei dem die äußere Faserumwicklung mit stoßabsorbierenden Schaumkappen aus Polyurethan (PU) versehen ist. Diese Kappen dienen als Dämpfungselement, die in einer eigenen Form geschäumt und anschließend mit einem Klebstoff mit dem Composite-Druckbehälter verbunden werden. Abgesehen davon, dass die Befestigung der stoßabsorbierenden Elemente zusätzliche Arbeitsschritte erforderlich macht, bleibt der zylindrische Längenabschnitt des Composite-Druckbehälters von den Kappen ungeschützt. Hierzu sind in weiteren Fertigungsschritten ergänzende Schutzmaßnahmen erforderlich, wie beispielsweise das Bewickeln des Composite-Druckbehälters mit Glasfaser als Schleifzusatz und das Überziehen/Aufschrumpfen einer PVC-Schutzfolie oder alternative Lackierungen. Da die Herstellung von Composite-Druckbehältern nach dem Stand der Technik prinzipbedingt keine kontinuierliche und automatisierte Herstellung ist, haben die oben genannten Schritte einen relativ hohen Anteil am Gesamtfertigungsaufwand. Des Weiteren sind die schulter- bzw. bodenseitig zu befestigenden Dämpfungselemente separate Bauteile, die besonders an die Kontur des Composite-Druckbehälters angepasst sein müssen.From the DE 197 51 411 C1 is a composite pressure vessel for storing gaseous media under pressure with a plastic liner known in which the outer Faserumwicklung is provided with shock-absorbing foam caps made of polyurethane (PU). These caps serve as a cushioning element, which is foamed in its own form and then connected with an adhesive to the composite pressure vessel. Apart from the fact that the attachment of the shock absorbing elements requires additional operations, the cylindrical length of the composite pressure vessel remains unprotected by the caps. For this purpose, additional protective measures are required in further manufacturing steps, such as the winding of the composite pressure vessel with glass fiber as a grinding additive and the coating / shrinking of a PVC protective film or alternative coatings. Since the production of composite pressure vessels according to the prior art inherently no continuous and automated Production, the above steps have a relatively high proportion of the total production cost. Furthermore, the shoulder or bottom side to be fastened damping elements are separate components that must be particularly adapted to the contour of the composite pressure vessel.

Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, eine Druckbehältereinheit sowie ein Verfahren zur Herstellung einer Druckbehältereinheit aufzuzeigen, wobei bzw. bei welchem der Composite-Druckbehälter unter Reduzierung der Fertigungskosten besser vor Stößen geschützt ist bzw. werden kann.Proceeding from this, the object of the invention is to disclose a pressure tank unit and a method for producing a pressure tank unit, wherein or in which the composite pressure tank is better protected against impact while reducing production costs.

Der gegenständliche Teil dieser Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Die Maßnahmen des Patentanspruchs 12 lösen den verfahrensmäßigen Teil der Aufgabe.The objective part of this object is solved by the features of patent claim 1. The measures of claim 12 solve the procedural part of the task.

Vorteilhafte Ausgestaltungen und Weiterbildungen des Erfindungsgedankens sind Gegenstand der jeweils abhängigen Patentansprüche.Advantageous embodiments and further developments of the inventive concept are the subject of the respective dependent claims.

Im Unterschied zu den bekannten Dämpfungskappen ist bei der erfindungsgemäßen Druckbehältereinheit vorgesehen, dass das Dämpfungselement aus Kunststoffschaum, insbesondere Polyurethan-Schaum, als ein den Composite-Druckbehälter unter bereichsweiser Aussparung mindestens eines Halsstücks vollständig umhüllender Mantel ausgebildet ist. Im Gegensatz zu Composite-Druckbehältern von Atemluftflaschen haben Composite-Druckbehälter zur Aufnahme von komprimiertem Erdgas (CNG) zwei Anschlüsse. In diesem Fall sind bereichsweise Aussparungen an beiden Halsstücken erforderlich.In contrast to the known damping caps is provided in the pressure vessel unit according to the invention, that the damping element made of plastic foam, in particular polyurethane foam, as a composite pressure vessel under zoned recess of at least one neck completely enveloping coat is formed. In contrast to composite pressure tanks of breathing air cylinders, composite pressure vessels for receiving compressed natural gas (CNG) have two ports. In this case, in some areas recesses are required on both neck pieces.

Ein erfindungsgemäß ausgebildeter Mantel schützt nicht nur die Kappenbereiche des Composite-Druckbehälters vor Stößen, sondern auch den zwischen den Kappenbereichen liegenden zylindrischen Längenabschnitt des Composite-Druckbehälters. Das hat den Vorteil, dass im Bereich des zylindrischen Längenabschnitts grundsätzlich keine weiteren Schutzmaßnahmen erforderlich sind, um den Composite-Druckbehälter vor Beschädigungen zu schützen.A jacket designed according to the invention not only protects the cap regions of the composite pressure vessel against impact, but also the cylindrical longitudinal section of the composite pressure vessel lying between the cap regions. This has the advantage that in principle no further protective measures are required in the area of the cylindrical length section in order to protect the composite pressure vessel against damage.

Dadurch entfällt das Bewickeln des Composite-Druckbehälters mit Glasfaser als Schleifzusatz, das Schleifen der Oberfläche sowie das Auftragen eines Klebers. Es ist auch nicht mehr erforderlich, PVC-Schutzfolie auf den Composite-Druckbehälter aufzuziehen bzw. aufzuschrumpfen. Bezogen auf die gesamten Herstellkosten einer Druckbehältereinheit wird das Einsparpotential im zweistelligen Prozentbereich gesehen, so dass eine weitaus kostengünstigere Fertigung bei gleichzeitig verbesserter Schutzwirkung erzielt wird.This eliminates the winding of the composite pressure vessel with glass fiber as a grinding additive, the grinding of the surface and the application of an adhesive. It is also no longer necessary to raise or shrink PVC protective film on the composite pressure vessel. Based on the total manufacturing costs of a pressure vessel unit, the potential savings in the double-digit percentage range is seen, so that a much more cost-effective production is achieved with improved protection at the same time.

Grundsätzlich ist es auch möglich, mehrere Composite-Druckbehälter, insbesondere zwei Composite-Druckbehälter, mit einem gemeinsamen Mantel zu umhüllen. Dies ist insbesondere bei Atemschutzgeräten zweckmäßig, die zwei Composite-Druckbehälter umfassen.In principle, it is also possible to coat a plurality of composite pressure vessels, in particular two composite pressure vessels, with a common jacket. This is particularly useful for respiratory protective equipment comprising two composite pressure vessels.

Der Mantel ist insbesondere einstückig ausgebildet und umgibt den Composite-Druckbehälter formschlüssig. Dadurch kann der Mantel bei einer Beschädigung leicht von dem Composite-Druckbehälter entfernt werden und anschließend durch Umschäumen neu aufgebaut werden. Hierzu ist zwischen dem Mantel und dem Composite-Druckbehälter zumindest bereichsweise eine Hafttrennschicht angeordnet, die insbesondere ein auf den Composite-Druckbehälter aufgetragener Lack ist. Dieser für den Kunststoffschaum als Hafttrennschicht fungierende Lack ist einfach in der Verarbeitung und vereinfacht spätere Reparaturen bzw. einen Austausch des Mantels erheblich. Grundsätzlich ist es zwar möglich, den Mantel auch mehrteilig auszubilden und als Formteile mit dem Composite-Druckbehälter zu verkleben bzw. auf diesen aufzuschäumen, allerdings erschwert dies die nachträgliche Reparatur gegenüber einem nur formschlüssig fixierten Mantel. Zudem wäre der Herstellungsaufwand höher. Ein weitere Vorteil der Hafttrennschicht ist, dass sich durch Permeation aus einem Kunststoffliner austretenden Gase sich zwischen dem Mantel und dem Composite-Druckbehälter verteilen können und insbesondere im Halsbereich oder an hierfür besonders vorgesehenen Öffnungen im Mantel austreten können. Hierdurch werden lokale Ansammlungen von Gasen, die zu Ausbeulungen im Mantel führen könnten, vermieden.The jacket is in particular formed in one piece and surrounds the composite pressure vessel in a form-fitting manner. This allows the jacket can be easily removed from the composite pressure vessel in case of damage and then rebuilt by foaming. For this purpose, an adhesive release layer is at least partially disposed between the shell and the composite pressure vessel, which is in particular a paint applied to the composite pressure vessel lacquer. This paint, which acts as an adhesive release layer for the plastic foam, is easy to process and simplifies subsequent repairs or replacement of the jacket considerably. In principle, it is possible to form the shell also in several parts and to glue as moldings with the composite pressure vessel or aufzuschäumen on this, but this complicates the subsequent repair against only a form-fitting fixed coat. In addition, the production cost would be higher. A further advantage of the adhesive release layer is that gases emerging through permeation from a plastic liner can be distributed between the jacket and the composite pressure vessel and can emerge in the neck in particular in the neck region or in openings provided for this purpose. As a result, local accumulations of gases, which could lead to bulging in the mantle, are avoided.

Ein wesentlicher Vorteil der erfindungsgemäßen Druckbehältereinheit ist, dass der Mantel jede beliebige Außenkontur annehmen kann, während der Composite-Druckbehälter weiterhin seine in der Regel zylindrische Form beibehalten kann. Das hat auch den Vorteil, dass die bei Composite-Druckbehältern auftretenden Fertigungstoleranzen von ± 3 % in Länge und Durchmesser problemlos ausgeglichen werden können. Das bedeutet, dass der Composite-Druckbehälter mit dem ihn vollständig umhüllenden Mantel grundsätzlich die vorgegebene Soll-Außenkontur besitzt, und zwar in wesentlich engeren Toleranzbereichen, als es bei einem nicht ummantelten Composite-Druckbehälter möglich ist. Daraus resultiert wiederum ein Vorteil bei der Anbringung der Druckbehältereinheit an einem Traggestell. Stand der Technik ist, dass Spannriemen die unterschiedlichen Durchmesser der Composite-Druckbehälter ausgleichen. Bei der erfindungsgemäßen Druckbehältereinheit können selbstverständlich auch Spannriemen zur Fixierung zum Einsatz kommen, allerdings sind darüber hinaus auch andere Befestigungsmöglichkeiten denkbar, insbesondere besonders gesicherte Clip- oder Schnappverbindungen, die aufgrund der engeren Toleranzen bislang nicht zum Einsatz kommen konnten. Durch die vollständige Ummantelung werden neue konstruktionstechnische Spielräume eröffnet.A significant advantage of the pressure vessel unit according to the invention is that the jacket can take any outer contour, while the composite pressure vessel can continue to maintain its generally cylindrical shape. This also has the advantage that the occurring in composite pressure vessels manufacturing tolerances of ± 3% in length and diameter can be easily compensated. This means that the composite pressure vessel with the jacket completely enclosing it basically has the given desired outer contour, and in a much narrower tolerance range than is possible with an uncoated composite pressure vessel. This in turn results in an advantage in the attachment of the pressure vessel unit to a support frame. The state of the art is that tensioning straps compensate for the different diameters of the composite pressure vessels. In the pressure vessel unit according to the invention, of course, tensioning straps can also be used for fixation, however, other fastening possibilities are also conceivable, in particular particularly secure clip or snap connections, which hitherto could not be used due to the narrower tolerances. The complete sheathing opens up new constructional scope.

Durch die geometrische Gestaltungsfreiheit bezüglich des Außenquerschnitts des Mantels kann dessen Außenquerschnitt von dem Außenquerschnitt des Composite-Druckbehälters abweichen. Aus Gründen der Gewichtsersparnis ist es natürlich zweckmäßig, die Wandstärke des Mantels nur so dick wie erforderlich zu wählen. Grundsätzlich ist es aber möglich, den Mantel konturiert auszugestalten, z. B. mehreckig, um beispielsweise ein Wegrollen einer liegenden Druckbehältereinheit zu verhindern. Dies kann aber auch bereits durch gleichmäßig am Außenumfang und sich in Längsrichtung seines zylindrischen Längenabschnitts erstreckende Rippen realisiert sein, die bei entsprechendem Abstand ebenfalls ein ungehindertes Wegrollen verhindern. Die Rippen müssen nicht durchgängig vorhanden sein. Es ist ausreichend, wenn der Ausgangsquerschnitt zumindest bereichsweise unrund ist, sei es durch langgestreckte Rippen oder einzelne lokale Vorsprünge. Zusätzlich kann an dem Mantel eine Aufstellfläche ausgebildet sein, um die Druckbehältereinheit abstellen zu können.Due to the geometric freedom of design with respect to the outer cross section of the shell whose outer cross section may differ from the outer cross section of the composite pressure vessel. For reasons of weight savings, it is of course expedient to choose the wall thickness of the shell only as thick as necessary. In principle, it is possible to design the jacket contoured, z. B. polygonal, for example, to prevent rolling of a horizontal pressure tank unit. But this can also be realized by evenly on the outer circumference and extending in the longitudinal direction of its cylindrical length ribs, which also prevent unhindered rolling at a corresponding distance. The ribs do not need to be continuous. It is sufficient if the starting cross-section is at least partially out of round, be it by elongated ribs or individual local projections. In addition, can be formed on the mantle a footprint to turn off the pressure vessel unit can.

Als weiterer besonderer Vorteil der erfindungsgemäßen Druckbehältereinheit wird es angesehen, dass unmittelbar in den Mantel ein Traggestell eingebettet sein kann. Das Traggestell ist aufgrund der formschlüssigen Verbindung des Mantels mit dem Composite-Druckbehälter ebenfalls unverlierbar an dem Composite-Druckbehälter befestigt, so dass sich unterschiedliche Befestigungsmöglichkeiten der Druckbehältereinheit eröffnen. Das Traggestell kann beispielsweise ein Metall- oder Kunststoffgestell sein, das bestimmte Verankerungspunkte am Außenquerschnitt des Mantels umfasst. Auf diese Weise kann die erfindungsgemäße Druckbehältereinheit an unterschiedlichen Tragvorrichtungen befestigt werden.As a further particular advantage of the pressure vessel unit according to the invention, it is considered that a supporting frame can be embedded directly in the jacket. The support frame is also fixed captive on the composite pressure vessel due to the positive connection of the shell with the composite pressure vessel, so that open up different attachment options of the pressure vessel unit. The support frame may be, for example, a metal or plastic frame comprising certain anchoring points on the outer cross section of the shell. In this way, the pressure tank unit according to the invention can be attached to different support devices.

Bei dem Kunststoffschaum handelt es sich insbesondere um einen Integralschaum, d.h. dass ein zelliger Mantelkern mit einer zur Randzone dichter werdenden Mantel-Außenhaut umschlossen wird. Im Idealfall gleicht die Dichteverteilung einer Parabel. Integralschäume haben den Vorteil, dass sie an der Mantel-Außenhaut stärkeren mechanischen Belastungen standhalten können, während der Mantelkern aufgrund seiner zelligen Struktur dämpfend wirkt. Insbesondere kommen Integralschäume aus Polyurethan zum Einsatz.The plastic foam is in particular an integral foam, i. that a cellular shell core is enclosed with a peripheral outer skin becoming denser to the edge zone. Ideally, the density distribution is equal to a parabola. Integral foams have the advantage that they can withstand greater mechanical stress on the outer shell of the shell, while the shell core has a damping effect due to its cellular structure. In particular, integral polyurethane foams are used.

Der Composite-Druckbehälter kann sowohl eine Atemluftflasche sein als auch zur Aufnahme von komprimiertem Erdgas (CNG) vorgesehen sein.The composite pressure vessel can be both a breathing air bottle and be provided for receiving compressed natural gas (CNG).

Gegenstand des Patentanspruchs 12 ist ein Verfahren zur Herstellung einer solchen Druckbehältereinheit, bei welchem ein zumindest bereichsweise mit einer Hafttrennschicht beschichteter Composite-Druckbehälter zum Umschäumen in ein Hohlformwerkzeug eingelegt und unter bereichsweiser Aussparung eines Halsstücks des Composite-Druckbehälters zur Ausbildung eines Mantels vollständig mit einem Kunststoffschaum, insbesondere Polyurethan-Schaum, ummantelt wird. In einer Weiterbildung kann vor dem Umschäumen des Composite-Druckbehälters ein Traggestell in das Hohlformwerkzeug eingelegt werden. Polyurethan-Schaum ist sowohl leicht als auch hinreichend stoßabsorbierend, so dass sich dieser Werkstoff bevorzugt für die Anwendung in Kombination mit Composite-Druckbehältern eignet.The subject of claim 12 is a method for producing such a pressure vessel unit, in which a composite pressure vessel coated at least partially with an adhesive release layer for foaming inserted into a hollow mold and under zonal recess of a neck of the composite pressure vessel to form a shell completely with a plastic foam, especially polyurethane foam, is coated. In a development, a support frame can be inserted into the hollow mold before the foaming of the composite pressure vessel. Polyurethane foam is both light and sufficiently shock absorbent, so that this material is preferably suitable for use in combination with composite pressure vessels.

Die Erfindung wird nachfolgend anhand rein schematisch dargestellter Ausführungsbeispiele näher erläutert. Es zeigen:

Figur 1
im Längsschnitt eine erfindungsgemäß ausgebildete Druckbehältereinheit;
Figur 2
im Querschnitt einen ummantelten Composite-Druckbehälter mit sechseckigem Außenquerschnitt;
Figur 3
im Querschnitt einen ummantelten Composite-Druckbehälter mit zwei Abflachungen am Mantel;
Figur 4
im Querschnitt einen ummantelten Composite-Druckbehälter mit mehreren am Außenumfang des Mantels gleichmäßig verteilten Rippen;
Figur 5
einen ummantelten Composite-Druckbehälter mit in den Mantel integriertem Traggestell in der Seitenansicht;
Figur 6
der Composite-Druckbehälter der Figur 5 in der Draufsicht;
Figur 7
eine erste Vorrichtung zum Umschäumen eines Composite-Druckbehälters in der Seitenansicht und
Figur 8
eine weitere Vorrichtung zum Umschäumen eines Composite-Druckbehälters in der Seitenansicht.
The invention will be explained in more detail with reference to purely schematically illustrated embodiments. Show it:
FIG. 1
in longitudinal section an inventively designed pressure vessel unit;
FIG. 2
in cross-section a jacketed composite pressure vessel with hexagonal outer cross-section;
FIG. 3
in cross-section a jacketed composite pressure vessel with two flats on the jacket;
FIG. 4
in cross-section a jacketed composite pressure vessel with a plurality of evenly distributed on the outer circumference of the shell ribs;
FIG. 5
a jacketed composite pressure vessel with integrated in the jacket support frame in side view;
FIG. 6
the composite pressure vessel of Figure 5 in plan view;
FIG. 7
a first device for foaming a composite pressure vessel in the side view and
FIG. 8
another device for foaming a composite pressure vessel in the side view.

In Figur 1 ist in einem Längsschnitt eine als Atemschutzflasche ausgeführte Druckbehältereinheit 1 mit einem Composite-Druckbehälter 2 und einem den Composite-Druckbehälter 2 umgebenden Mantel 3 zu erkennen. Der Aufbau des Composite-Druckbehälters ist z.B. aus der DE 197 51 411 C1 bekannt. Er besteht aus einem innen liegenden Liner 4, der von einer Faserwicklung 5 umgeben ist. Der Composite-Druckbehälter 2 weist in seinen Halsbereichen angeordnete Halsstücke 6, 7 auf, wobei das in der Bildebene obere Halsstück 6 innenseitig mit einem Gewindeabschnitt 8 zur Befestigung eines Ventils versehen ist.FIG. 1 shows in a longitudinal section a pressure vessel unit 1 designed as a respiratory protective bottle with a composite pressure vessel 2 and a jacket 3 surrounding the composite pressure vessel 2. The structure of the composite pressure vessel is eg from the DE 197 51 411 C1 known. It consists of an inner liner 4, which is surrounded by a fiber winding 5. The composite pressure vessel 2 has in its neck areas arranged neck pieces 6, 7, wherein the upper level in the image plane neck piece 6 is provided on the inside with a threaded portion 8 for fastening a valve.

Wesentlich bei der erfindungsgemäßen Atemschutzflasche 1 ist, dass sich der Mantel 3 von Polkappe zu Polkappe erstreckt und die gesamte Atemschutzflasche 1 mit Ausnahme des Anschlussbereichs 9 des Halsstücks 6 vollständig umhüllt, so dass eine allseitige Stoßsicherung vorhanden ist.It is essential in the inventive respirator bottle 1 that the jacket 3 extends from pole cap to pole cap and the entire respirator bottle 1, with the exception of the connection region 9 of the neck piece 6 completely enveloped, so that an all-round shock protection is present.

In nicht näher dargestellter Weise befindet sich zwischen dem Mantel 3 und dem Composite-Druckbehälter 2 eine dünne Hafttrennschicht. Die Hafttrennschicht ist ein auf den Composite-Druckbehälter 2 aufgetragener Lack, an dem der aus Polyurethan-Schaum bestehende Mantel 3 nicht anhaftet. An der unteren Polkappe der Atemschutzflasche 1 ist der Mantel 3 mit einer Aufstellfläche 10 versehen, auf der die Atemschutzflasche 1 abgestellt werden kann. Im sich zwischen den Polkappen erstreckenden zylindrischen Längenabschnitt 11 des Composite-Druckbehälters 2 ist die Wandstärke W des Mantels 3 konstant. Die Wandstärke W ist nur beispielhaft gewählt und kann in Abstimmung auf die zu erwartenden Belastungen in weiten Grenzen variiert werden.In a manner not shown is located between the shell 3 and the composite pressure vessel 2, a thin adhesive release layer. The adhesive release layer is a paint applied to the composite pressure vessel 2, to which the polyurethane foam sheath 3 does not adhere. At the lower pole cap of the respirator 1 of the jacket 3 is provided with a footprint 10 on which the respirator 1 can be turned off. In between the pole caps extending cylindrical length portion 11 of the composite pressure vessel 2, the wall thickness W of the shell 3 is constant. The wall thickness W is chosen only as an example and can be varied in coordination with the expected loads within wide limits.

Die Figuren 2 bis 4 zeigen unterschiedliche Ausführungsformen des Außenquerschnitts eines Mantels 3a, 3b, 3c. In Figur 2 ist der Mantel 3a hinsichtlich seines Außenquerschnitts sechseckig konfiguriert. In Figur 3 sind beispielhaft zwei gegenüberliegende Parallelflächen 12 vorgesehen an einem im Übrigen kreisrund ausgeführten Außenquerschnitt eines Mantels 3b. Figur 4 zeigt eine Ausführungsform mit sechs über den Außenumfang verteilten Rippen 13 an einem im Übrigen kreisrund ausgeführten Außenquerschnitt des Mantels 3c.FIGS. 2 to 4 show different embodiments of the outer cross-section of a jacket 3a, 3b, 3c. In FIG. 2, the jacket 3a is hexagonal in its outer cross section. In FIG. 3, by way of example, two opposite parallel surfaces 12 are provided on an otherwise circular outer cross-section of a jacket 3b. FIG. 4 shows an embodiment with six ribs 13 distributed over the outer circumference, on an otherwise circular outer cross-section of the jacket 3c.

Figuren 5 und 6 zeigen eine Variante einer Atemschutzflasche 14, bei welcher in den Mantel 15 ein Traggestell 16 eingebettet ist. In diesem Ausführungsbeispiel sind exemplarisch in zwei unterschiedlichen Höhenniveaus zwei Bügel 17 vorgesehen, die an einer eben gestalteten Auflagerfläche 18 austreten. Die über die Auflagerfläche 18 vorstehenden Bereiche der Bügel 17 sind als Laschen 19 konfiguriert, die als Befestigungsmittel für die Atemschutzflasche 14 dienen.Figures 5 and 6 show a variant of a respirator 14, in which in the jacket 15, a support frame 16 is embedded. In this embodiment, two brackets 17 are provided by way of example in two different height levels, which emerge on a newly designed bearing surface 18. The over the support surface 18 projecting portions of the bracket 17 are as Lugs 19 configured to serve as attachment means for the respirator 14.

Figuren 7 und 8 zeigen Vorrichtungen 20, 21 zur Herstellung einer erfindungsgemäßen Druckbehältereinheit. Der Composite-Druckbehälter wird in ein mindestens zweiteiliges Formwerkzeug eingelegt, das nach dem Verschließen mit Polyurethan-Schaum gefüllt wird. Dadurch kann mit hoher Fertigungsgenauigkeit ein den Composite-Druckbehälter vollständig umhüllender Mantel ausgebildet werden, der in diesem Ausführungsbeispiel achteckig gestaltet ist. Kreisförmig angeordnete Heizstäbe 22 gewährleisten das zur Herstellung des Mantels erforderliche Temperaturniveau innerhalb des Formwerkzeugs.FIGS. 7 and 8 show devices 20, 21 for producing a pressure vessel unit according to the invention. The composite pressure vessel is placed in an at least two-part mold, which is filled after closing with polyurethane foam. This can be formed with high manufacturing accuracy, a composite pressure vessel completely enveloping coat, which is designed octagonal in this embodiment. Circularly arranged heating elements 22 ensure the temperature level required for the production of the shell within the molding tool.

In Figur 7 sind Werkzeughälften 23, 24 der Vorrichtung 20 schwenkbeweglich miteinander verbunden. Figur 7 zeigt, wie ein ummantelter Composite-Druckbehälter 25, noch in einer unteren Werkzeughälfte 23 liegt. Seine Außenkontur entspricht exakt der Kontur des Formhohlraums der Werkzeughälften.In Figure 7 tool halves 23, 24 of the device 20 are pivotally connected together. FIG. 7 shows how a coated composite pressure vessel 25 still lies in a lower mold half 23. Its outer contour corresponds exactly to the contour of the mold cavity of the mold halves.

Die Vorrichtung 21 der Figur 8 unterscheidet sich von derjenigen der Figur 7 lediglich dadurch, dass die Werkzeughälften nicht gegeneinander verschwenkt werden, sondern in Richtung des Pfeils P in einer geradlinigen Bewegung geöffnet und geschlossen werden.The device 21 of Figure 8 differs from that of Figure 7 only in that the tool halves are not pivoted against each other, but in the direction of arrow P are opened and closed in a rectilinear motion.

Bezugszeichen:Reference numerals:

1 -1 -
DruckbehältereinheitPressure tank unit
2 -2 -
Composite-DruckbehälterComposite pressure vessels
3 -3 -
Mantelcoat
3a -3a -
Mantelcoat
3b -3b -
Mantelcoat
3c -3c -
Mantelcoat
4 -4 -
Linerliner
5 -5 -
Faserwicklungfilament winding
6 -6 -
Halsstückneckpiece
7 -7 -
Halsstückneckpiece
8 -8th -
Gewindeabschnittthreaded portion
9 -9 -
Anschlussbereichterminal area
10-10-
AutstellflächeAutstellfläche
11 -11 -
zylindrischer Längenabschnitt v. 2cylindrical length v. 2
12 -12 -
Parallelfläche an 3bParallel surface at 3b
13 -13 -
Rippe an 3cRib at 3c
14 -14 -
AtemschutzflascheRespiratory protection bottle
15 -15 -
Mantelcoat
16 -16 -
Traggestellsupporting frame
17 -17 -
Bügel v. 16Hanger v. 16
18 -18 -
Auflagerflächebearing surface
19 -19 -
Lasche v. 17Flap v. 17
20 -20 -
Vorrichtung zur Herstellung einer DruckbehältereinheitApparatus for producing a pressure vessel unit
21 -21 -
Vorrichtung zur Herstellung einer DruckbehältereinheitApparatus for producing a pressure vessel unit
22 -22 -
Heizstabheater
23 -23 -
Werkzeughälfte v. 20Tool half v. 20
24 -24 -
Werkzeughälfte v. 20Tool half v. 20
25 -25 -
AtemschutzflascheRespiratory protection bottle
P -P -
Pfeilarrow
W -W -
WandstärkeWall thickness

Claims (13)

Druckbehältereinheit mit wenigstens einem Composite-Druckbehälter (2), wobei an dem wenigstens einen Composite-Druckbehälter (2) ein stoßabsorbierendes Dämpfungselement aus einem Kunststoffschaum, insbesondere Polyurethan-Schaum, befestigt ist, dadurch gekennzeichnet, dass das Dämpfungselement als ein den Composite-Druckbehälter (2) unter bereichsweiser Aussparung mindestens eines Halsstücks (6) vollständig umhüllender Mantel (3, 3a, 3b, 3c, 15) ausgebildet ist.Pressure vessel unit with at least one composite pressure vessel (2), wherein on the at least one composite pressure vessel (2) a shock-absorbing damping element made of a plastic foam, in particular polyurethane foam, is attached, characterized in that the damping element as a composite pressure vessel ( 2) under area-wise recess of at least one neck piece (6) is completely enveloping jacket (3, 3a, 3b, 3c, 15) is formed. Druckbehältereinheit nach Anspruch 1, dadurch gekennzeichnet, dass der Mantel (3, 3a, 3b, 3c, 15) einstückig ausgebildet ist und den wenigstens einen Composite-Druckbehälter (2) formschlüssig umgibt.Pressure vessel unit according to claim 1, characterized in that the jacket (3, 3a, 3b, 3c, 15) is integrally formed and surrounds the at least one composite pressure vessel (2) in a form-fitting manner. Druckbehältereinheit nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass zwischen dem Mantel (3, 3a, 3b, 3c, 15) und dem Composite-Druckbehälter (2) zumindest bereichsweise eine Hafttrennschicht angeordnet ist.Pressure vessel unit according to claim 1 or 2, characterized in that between the jacket (3, 3a, 3b, 3c, 15) and the composite pressure vessel (2) at least partially an adhesive release layer is arranged. Druckbehältereinheit nach Anspruch 3, dadurch gekennzeichnet, dass die Hafttrennschicht ein auf den Composite-Druckbehälter (2) aufgetragener Lack ist.Pressure vessel unit according to claim 3, characterized in that the adhesive separation layer is a paint applied to the composite pressure vessel (2). Druckbehältereinheit nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Composite-Druckbehälter (2) einen zylindrischen Längenabschnitt (11) mit einem runden Außenquerschnitt besitzt, wobei der Außenquerschnitt des Mantels (3a, 3b, 3c, 15) in dem zylindrischen Längenabschnitt (11) von dem Außenquerschnitt des Composite-Druckbehälters (2) abweicht.Pressure vessel unit according to one of claims 1 to 4, characterized in that the composite pressure vessel (2) has a cylindrical longitudinal section (11) with a round outer cross section, wherein the outer cross section of the jacket (3a, 3b, 3c, 15) in the cylindrical longitudinal section (11) deviates from the outer cross section of the composite pressure vessel (2). Druckbehältereinheit nach Anspruch 5, dadurch gekennzeichnet, dass der Außenquerschnitt des Mantels (3a, 3b, 3c, 15) mehreckig ist.Pressure vessel unit according to claim 5, characterized in that the outer cross section of the jacket (3a, 3b, 3c, 15) is polygonal. Druckbehältereinheit nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass ein Traggestell (16) in den Mantel (15) eingebettet ist.Pressure vessel unit according to one of claims 1 to 6, characterized in that a support frame (16) in the jacket (15) is embedded. Druckbehältereinheit nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass an dem Mantel (3) eine Aufstellfläche (10) ausgebildet ist.Pressure vessel unit according to one of claims 1 to 7, characterized in that on the jacket (3) a mounting surface (10) is formed. Druckbehältereinheit nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass Kunststoffschaum ein Integralschaum ist.Pressure vessel unit according to one of claims 1 to 8, characterized in that plastic foam is an integral foam. Druckbehältereinheit nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass sie eine Atemluftflasche ist.Pressure tank unit according to one of claims 1 to 9, characterized in that it is a breathing air bottle. Druckbehältereinheit nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass der Composite-Druckbehälter zur Aufnahme von komprimiertem Erdgas vorgesehen ist.Pressure vessel unit according to one of claims 1 to 9, characterized in that the composite pressure vessel is provided for receiving compressed natural gas. Verfahren zur Herstellung einer Druckbehältereinheit mit wenigstens einem Composite-Druckbehälter (2), dadurch gekennzeichnet, dass ein zumindest bereichsweise mit einer Hafttrennschicht beschichteter Composite-Druckbehälter (2) zum Umschäumen in ein Hohlformwerkzeug (20, 21) eingelegt und unter bereichsweiser Aussparung wenigstens eines Halsstücks (6) des Composite-Druckbehälters (2) zur Ausbildung eines Mantels (3, 3a, 3b, 3c, 15) vollständig mit einem Kunststoffschaum, insbesondere Polyurethan-Schaum, ummantelt wird.A method for producing a pressure vessel unit with at least one composite pressure vessel (2), characterized in that a at least partially coated with an adhesive release layer composite pressure vessel (2) for foaming in a hollow mold (20, 21) inserted and under zonal recess at least one neck piece (6) of the composite pressure vessel (2) for forming a jacket (3, 3a, 3b, 3c, 15) completely with a plastic foam, in particular polyurethane foam, is sheathed. Verfahren nach Anspruch 12, dadurch gekennzeichnet, dass vor dem Umschäumen des wenigstens einen Composite-Druckbehälters (2) ein Traggestell (16) in das Hohlformwerkzeug (20, 21) eingelegt wird.A method according to claim 12, characterized in that prior to the foaming of the at least one composite pressure vessel (2), a support frame (16) in the hollow mold (20, 21) is inserted.
EP05007635A 2005-04-07 2005-04-07 Vessel and method for fabricating a vessel Withdrawn EP1710486A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05007635A EP1710486A1 (en) 2005-04-07 2005-04-07 Vessel and method for fabricating a vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05007635A EP1710486A1 (en) 2005-04-07 2005-04-07 Vessel and method for fabricating a vessel

Publications (1)

Publication Number Publication Date
EP1710486A1 true EP1710486A1 (en) 2006-10-11

Family

ID=34934854

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05007635A Withdrawn EP1710486A1 (en) 2005-04-07 2005-04-07 Vessel and method for fabricating a vessel

Country Status (1)

Country Link
EP (1) EP1710486A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2927145A1 (en) * 2008-01-31 2009-08-07 Air Liquide Pressurized gas tank, has end piece comprising lower surface and covered surface, where ratio between projections of surfaces in plane perpendicular to direction normal to liner surface lies between specific values
CN105371100A (en) * 2014-08-29 2016-03-02 中材科技（苏州）有限公司 Composite container and forming method of composite layers of composite container
JP2016138622A (en) * 2015-01-29 2016-08-04 トヨタ自動車株式会社 tank
DE102015222392A1 (en) * 2015-11-13 2017-05-18 Bayerische Motoren Werke Aktiengesellschaft Pressure vessel with a load ring, motor vehicle and method for producing a pressure vessel
EP3220040A1 (en) * 2016-03-07 2017-09-20 AMTROL Licensing Inc. Shroud assembly for a portable pressurized gas cylinder
DE102017220882A1 (en) * 2017-11-22 2019-05-23 Bayerische Motoren Werke Aktiengesellschaft Pressure vessel with thermoplastic and thermoset reinforcement and manufacturing process
FR3129703A1 (en) * 2021-11-30 2023-06-02 Faurecia Systemes D'echappement Protective device for pressurized gas tank

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4191304A (en) * 1976-02-10 1980-03-04 Stiebel Eltron Gmbh & Co. Kg Pressure tank for hot-water heaters
EP0656506A1 (en) * 1993-12-03 1995-06-07 Brunswick Corporation Pressure vessel with damage mitigating system
US5698065A (en) * 1991-05-24 1997-12-16 Composite Scandinavia Ab Apparatus for manufacturing glass-fibre-reinforced plastic container
US5772938A (en) * 1996-05-10 1998-06-30 Sharp; Bruce R. Composite storage tank having double wall characteristics
DE19751411C1 (en) * 1997-11-14 1999-01-14 Mannesmann Ag Composite fibre-reinforced pressurised gas tank including liner with end neck sections
FR2792392A1 (en) * 1999-04-19 2000-10-20 Claude Leon Hembert Protecting device for bottle, reservoir, etc., made of composite material and carrying fluid under pressure, comprises outer shell and compressible material placed at end of container
EP1489349A1 (en) * 2003-06-20 2004-12-22 Air Products And Chemicals, Inc. A container for pressurised gas

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4191304A (en) * 1976-02-10 1980-03-04 Stiebel Eltron Gmbh & Co. Kg Pressure tank for hot-water heaters
US5698065A (en) * 1991-05-24 1997-12-16 Composite Scandinavia Ab Apparatus for manufacturing glass-fibre-reinforced plastic container
EP0656506A1 (en) * 1993-12-03 1995-06-07 Brunswick Corporation Pressure vessel with damage mitigating system
US5772938A (en) * 1996-05-10 1998-06-30 Sharp; Bruce R. Composite storage tank having double wall characteristics
DE19751411C1 (en) * 1997-11-14 1999-01-14 Mannesmann Ag Composite fibre-reinforced pressurised gas tank including liner with end neck sections
FR2792392A1 (en) * 1999-04-19 2000-10-20 Claude Leon Hembert Protecting device for bottle, reservoir, etc., made of composite material and carrying fluid under pressure, comprises outer shell and compressible material placed at end of container
EP1489349A1 (en) * 2003-06-20 2004-12-22 Air Products And Chemicals, Inc. A container for pressurised gas

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2927145A1 (en) * 2008-01-31 2009-08-07 Air Liquide Pressurized gas tank, has end piece comprising lower surface and covered surface, where ratio between projections of surfaces in plane perpendicular to direction normal to liner surface lies between specific values
CN105371100A (en) * 2014-08-29 2016-03-02 中材科技（苏州）有限公司 Composite container and forming method of composite layers of composite container
WO2016029718A1 (en) * 2014-08-29 2016-03-03 中材科技（苏州）有限公司 Composite material container and method for forming composite material layer thereof
CN105371100B (en) * 2014-08-29 2021-01-05 中材科技（苏州）有限公司 Composite material container and forming method of composite material layer thereof
JP2016138622A (en) * 2015-01-29 2016-08-04 トヨタ自動車株式会社 tank
DE102015222392A1 (en) * 2015-11-13 2017-05-18 Bayerische Motoren Werke Aktiengesellschaft Pressure vessel with a load ring, motor vehicle and method for producing a pressure vessel
EP3220040A1 (en) * 2016-03-07 2017-09-20 AMTROL Licensing Inc. Shroud assembly for a portable pressurized gas cylinder
US10088102B2 (en) 2016-03-07 2018-10-02 Amtrol Licensing Inc. Shroud assembly for a portable pressurized gas cylinder
US10551000B2 (en) 2016-03-07 2020-02-04 Amtrol Licensing Inc. Shroud assembly for a portable pressurized gas cylinder
DE102017220882A1 (en) * 2017-11-22 2019-05-23 Bayerische Motoren Werke Aktiengesellschaft Pressure vessel with thermoplastic and thermoset reinforcement and manufacturing process
FR3129703A1 (en) * 2021-11-30 2023-06-02 Faurecia Systemes D'echappement Protective device for pressurized gas tank

Similar Documents

Publication Publication Date Title
EP1710486A1 (en) Vessel and method for fabricating a vessel
DE69109244T2 (en) Low unit weight container, particularly suitable for storing pressurized liquids and process for its manufacture.
EP1818596B1 (en) Pressure vessel made of plastic and method for its manufacture
EP2491294B1 (en) Vessel neck construction of a pressure vessel
DE69616827T2 (en) GAS TANK
DE102010021667B4 (en) Pressure vessels for gaseous or liquid media
DE3331021A1 (en) ROD-SHAPED HOLLOW BODY FOR TRANSMITTING PRESSURE, TENSION, BENDING AND TWISTING FORCES, METHOD FOR THE PRODUCTION THEREOF AND DEVICE FOR IMPLEMENTING THE DESCRIBED METHOD
DE3113791A1 (en) &#34;TUBULAR HOLLOW BODY, PROCESS FOR ITS PRODUCTION AND DEVICE FOR IMPLEMENTING THE PROCESS&#34;
DE19526154A1 (en) Composite pressure vessel for storing gaseous media under pressure with a plastic liner
WO2017080724A1 (en) Pressure vessel comprising a domed cap, and method for manufacturing a pressure vessel
DE69200480T2 (en) Process for the production of a lightweight structure by expansion of a metal container inside in a reinforced, wave-shaped tube.
DE102018133296A1 (en) High pressure tank
WO2018121812A1 (en) Improved anti-static pressure tank
DE19711844B4 (en) Method for producing a compressed gas container
DE102019115668B4 (en) PRESSURE VESSEL WITH GROOVED LINING
WO2016135260A1 (en) Pressure vessel and method for producing a pressure vessel
DE112014005408T5 (en) Device for storing gas
DE102014013249B4 (en) pressure vessel
DE102017205190A1 (en) Pressure vessel with fuel-impermeable liner
EP2066492A1 (en) Method for producing a hot water reservoir
DE102017211419A1 (en) Method for producing a fiber-reinforced component for a motor vehicle and fiber-reinforced component
EP2101103B1 (en) Protection cap for pressurised gas container
DE102009024795A1 (en) Hydrogen tank for use in motor vehicle, has two tank containers connected with each other, where tank containers have multi-shell structure with different filling pressures
DE202014007319U1 (en) pressure vessel
DE102014209916A1 (en) High pressure vessel

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20060323

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20090501