WO2007118695A1 - Container for cryogenic liquids - Google Patents

Container for cryogenic liquids Download PDF

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Publication number
WO2007118695A1
WO2007118695A1 PCT/EP2007/003330 EP2007003330W WO2007118695A1 WO 2007118695 A1 WO2007118695 A1 WO 2007118695A1 EP 2007003330 W EP2007003330 W EP 2007003330W WO 2007118695 A1 WO2007118695 A1 WO 2007118695A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
support
longitudinal axis
outer container
container according
Prior art date
Application number
PCT/EP2007/003330
Other languages
German (de)
French (fr)
Inventor
Klaus Brunnhofer
Original Assignee
Magna Steyr Fahrzeugtechnik Ag & Co Kg
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 Magna Steyr Fahrzeugtechnik Ag & Co Kg filed Critical Magna Steyr Fahrzeugtechnik Ag & Co Kg
Priority to JP2009508155A priority Critical patent/JP2009533637A/en
Priority to EP07724268A priority patent/EP2008014B1/en
Priority to DE502007001200T priority patent/DE502007001200D1/en
Priority to US12/297,006 priority patent/US20090301104A1/en
Priority to AT07724268T priority patent/ATE438062T1/en
Publication of WO2007118695A1 publication Critical patent/WO2007118695A1/en

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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
    • 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
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/01—Reinforcing or suspension means
    • F17C2203/014—Suspension means
    • F17C2203/015—Bars
    • 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
    • F17C2203/03—Thermal insulations
    • 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
    • F17C2203/03—Thermal insulations
    • F17C2203/0391—Thermal insulations by vacuum
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0617—Single wall with one layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0619—Single wall with two layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0639—Steels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—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
    • 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
    • F17C2203/0673—Polymers
    • 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
    • F17C2205/0111—Boxes
    • 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
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/013—Two or more vessels
    • F17C2205/0134—Two or more vessels characterised by the presence of fluid connection between vessels
    • F17C2205/0138—Two or more vessels characterised by the presence of fluid connection between vessels bundled in series
    • 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
    • F17C2205/0134—Two or more vessels characterised by the presence of fluid connection between vessels
    • F17C2205/0142—Two or more vessels characterised by the presence of fluid connection between vessels bundled in parallel
    • 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
    • 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
    • F17C2221/038—Refrigerants
    • 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
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, 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
    • F17C2223/03—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the pressure level
    • F17C2223/035—High pressure (>10 bar)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • F17C2227/041—Methods for emptying or filling vessel by 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • F17C2227/046—Methods for emptying or filling by even emptying or filling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/011—Improving strength
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/01—Improving mechanical properties or manufacturing
    • F17C2260/012—Reducing weight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00—Purposes of gas storage and gas handling
    • F17C2260/03—Dealing with losses
    • F17C2260/031—Dealing with losses due to heat transfer
    • F17C2260/033—Dealing with losses due to heat transfer by enhancing insulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0186—Applications for fluid transport or storage in the air or in space

Definitions

  • the invention relates to a container for cryogenic liquids, consisting of an outer container and a number of réellemitem, preferably in the space between the inner containers and the outer container for thermal insulation, a vacuum prevails.
  • a container for cryogenic liquids consisting of an outer container and a number of réellemitem, preferably in the space between the inner containers and the outer container for thermal insulation, a vacuum prevails.
  • Such containers are intended for installation in motor vehicles, aircraft or spacecraft. They contain liquefied gases which are removed from the container for use either as fuel or for other purposes (such as cooling medium).
  • the vacuum insulation is intended to prevent the entry of heat and thus evaporation of the cryogenic liquids and the associated increase in pressure.
  • the cryogenic liquid can also be stored at high pressure. On the one hand, this increases the stored quantity for the same volume, but on the other hand, the container becomes heavier in order to withstand the pressure load.
  • the vacuum insulation has a pressure on the containers.
  • the outer container is from the outside by the atmospheric pressure loaded, because in its interior the vacuum acts.
  • the inner containers are loaded by the full internal pressure, because they are surrounded by a vacuum.
  • longitudinal axis direction is understood to mean a direction substantially parallel to the direction of the longitudinal axes of the adjacent inner containers. Small deviations from parallelism fall within the scope of protection of this claim.
  • the container is a tank in a flat construction, although certain deviations in the sense of a slight curvature of the top, bottom and / or side surface of the outer container are permitted and fall within the scope of the present protection claim.
  • a plurality of inner containers are arranged in the outer container, wherein the longitudinal axes are arranged substantially parallel and in a plane. Slight deviations with respect to the parallelism of the longitudinal axes or a slight axial offset of an inner container from a common level, however, are allowed and covered by the scope of protection of the present protection claim.
  • the outer container can be stabilized against occurring compressive and tensile loads from the inside as well as from the outside. Such compressive and tensile loads can be caused for example by an evacuation of the outer tank or by mechanical external loads on the outer tank.
  • a construction of a flat container is proposed which does not have the disadvantages known and discussed in the prior art. It should be as light and easy as possible with the best thermal insulation.
  • this is achieved in that the inner containers are juxtaposed cylinders with a bottom on both sides, and that the planar wall parts of the outer container are supported against one another by supports disposed between the cylinders. Thanks to the arrangement of several inner container side by side (not all inner container necessarily in a plane next to each other must be arranged) can be maintained at internal pressure particularly favorable cylindrical shape. This makes it possible to store the cryogenic liquid under high pressure even with relatively small wall thickness. In addition there is the advantage that the cylinders can be used in the manner of a modular system for containers of different external dimensions in different numbers and in different constellations.
  • the support is a pressure support, that is to say a support for the support of / against compressive forces and / or a tensile support for the support of / against tensile forces.
  • the inner containers are provided as separate containers, for example as structurally separate cylindrical tank containers, which are filled and / or emptied via a suitable device, optionally together or separately.
  • the support based on a section of the support with the plane of the longitudinal axes of the adjacent inner container, the support has a measured along the longitudinal axis direction maximum longitudinal extent and normal to a measured between the adjacent inner tanks maximum width extension.
  • the ratio of maximum length extension to maximum width extension is at least 1.25: 1. This results in a particularly good stability of the container according to the invention. If the support between two inner containers consists of a plurality of support elements arranged along the longitudinal axis, the maximum length expansions or maximum width expansions of the support elements are added to determine the effective total length extension or overall width extension of the support acting between the inner containers.
  • Overcovers of two or more pressure-bearing support elements in the longitudinal or width direction contribute only once to the determination of the effective total length or the effective overall width of the support.
  • the thus determined effective Overall length or overall width of the support elements is considered as dimension (length extension, width extension) of the support.
  • the support elements are arranged symmetrically or at approximately equal distances from one another viewed in the direction of the longitudinal axis of the inner container. This ensures that the force input through the outer container occurs evenly, without distortion of the container construction.
  • the ratio of maximum length extension to maximum width extension is at least 2: 1.
  • the ratio of maximum length extension to maximum width extension is at least 5: 1.
  • the cover wall is supported by the support along the bottom wall along the at least two inner containers, in the longitudinal axis direction, over at least 10% of the length of the outer container.
  • the top wall is supported relative to the bottom wall along the at least two inner containers, in the longitudinal axis direction, over at least 25% of the length of the outer container by the support.
  • the push-on support has a
  • the longitudinally arranged between the at least two inner containers support several separate support elements.
  • the support extends over the entire length of the at least two inner container.
  • the at least two inner containers are cylindrical.
  • the at least two inner containers are suspended at their ends on the side walls of the outer container, so that thermal expansions are taken in the longitudinal direction.
  • the inner container made of stainless steel.
  • the inner containers are surrounded by carbon fibers embedded in a plastic matrix.
  • the inner containers are suspended at their mutual bottoms at end walls of the outer container, so that thermal expansions are taken in the longitudinal direction.
  • the inner containers are fixedly connected at one end to an end wall of the outer container and freely movable at the other end in the longitudinal direction.
  • the outer container consists of thin sheet metal and is wrapped with fiber embedded in a plastic matrix.
  • the support can also be designed so that you the inner container transversely (ie transversely to the longitudinal axis direction), either in the direction of the width of the outer container and / or in the direction of the height of the outer container at least partially off 5 supports or keeps the inner container in these directions at least partially in position.
  • FIG. 1 shows an axonometric view of a container 10 according to the invention
  • FIG. 4 a section according to CC in FIG. 3
  • FIG. 5 an alternative embodiment to FIGS. 4, 15
  • FIG. 6 longitudinal section according to FIG -VI in Fig. 5.
  • FIG. 7 shows an alternative embodiment to FIG. 2 in section according to VII-
  • FIG. 8 shows a section according to VIII-Vm in FIG. 7
  • the outer container is summarily denoted by I and the inner containers arranged parallel to each other therein are denoted by 2, 3, and 4.
  • the inner containers are cylindrical tubes, preferably made of stainless steel.
  • the surrounding outer container 1 with distance can thus obtain a flat design. It is essentially a flat cuboid whose side
  • 25 tenilwashen can be rounded. In any case, however, it has two flat wall parts 10, 11.
  • a vacuum for thermal insulation which forms a so-called "superinsulation" together with further measures the gap 5, the flat wall parts 10,
  • the inner containers 2, 3, 4 are already pressed to the outside at atmospheric pressure prevailing in them. If the cryogenic liquid is stored in the inner containers 2, 3, 4 under a higher pressure, the tensile load of the zy- cylindrical walls and the bottoms 7, 8 of the inner container 2, 3, 4 correspondingly larger.
  • supports 12, 13 For receiving the compressive forces acting on the flat wall parts 10, 11 of the outer container 1, these are supported against one another by supports 12, 13. These connect, as seen in Fig. 4, the two flat wall parts 10, 11, wherein they pass between the inner container 2, 3 or 3, 4, preferably without touching them. In Fig.2, the supports 12, 13 individual supports.
  • the inner container 2, 3, 4 can be suspended in a known manner by means of mutually known suspensions 17, 18 on the end walls 14, 15.
  • the modified Ausbowungsforrn of Fig. 5 and 6 differs from it by the fact that the supports 22, 23 extend over the length of the inner container 2, 3, 4 and that the inner container 2, 3, 4 only one hand by means of heat insulating feet 32 on an end wall 33 of the outer container 1 are fixed and freely movable with its other end.
  • the supports 23, 24 are I-shaped profiles, the foot parts 24, 25 bear against the inner walls on the flat walls 10, 11 and the web portions have reinforcing ribs 26 in order to increase their buckling strength.
  • the inner containers 2, 3, 4 are sufficiently removed, they can be provided with a wrapping of carbon fibers 30 embedded in a plastic matrix in order to withstand high internal pressures with the lowest possible weight.
  • the outer container 1 may be made of a very thin sheet metal, if it is also provided with a fiber-reinforced wrapping 31.
  • FIGS. 7 and 8 show a further possible embodiment of a container according to the invention for a cryogenic liquid.
  • the Container has an outer container 40 with a length L, a width B and a height H.
  • FIGS. 7 and 8 differs from other embodiments in that the support 34 has two separate elongate support elements 35 and 36 which are arranged along the longitudinal axes 37 of the inner containers 38, ie in the longitudinal axis direction.
  • Fig. 7 is a section of the support along the plane through the two longitudinal axes 37 of the inner container 38 can be seen.
  • the outer container 40 is supported by the support 34 between its bottom wall 41 and its top wall 42 over more than 50% of its length.
  • the longitudinal extent (along the longitudinal axis of the cylindrical inner container) of the support in cross-section is a multiple of the width dimension thereof.
  • the maximum length dimensions or maximum width dimensions of the cross section of the individual support elements, each arranged between two inner containers, are added. Shares of the cross section overlapping in the direction of the longitudinal axis or in the direction of the width (section with plane through the two longitudinal axes 37) of the support elements are taken into account only once in this addition.
  • FIGS. 7 and 8 show that in the illustrated embodiment, the cumulative extent of the cross-sectional area of the support 34 in the direction of the longitudinal axis is substantially greater than in the direction between the inner containers and at right angles to the longitudinal axis in the direction of the width of the outer container 40.
  • the outer container 40 is shown in Fig. 7 and Fig. 8 only schematically.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

The invention relates to a container for cryogenic liquids, comprising an evacuable outer container, wherein the outer container has a substantially flat base wall, a substantially flat ceiling wall and side walls. A support is arranged between the inner containers, wherein the support is larger in the direction of the longitudinal axis of the inner container than in the direction between the inner containers and at right angles to the longitudinal axis of the inner container.

Description

BEHÄLTER FÜR KRYOGENE FLÜSSIGKEITEN CONTAINER FOR CRYOGENEOUS LIQUIDS
Die Erfindung betrifft einen Behälter für kryogene Flüssigkeiten, bestehend aus einem Aussenbehälter und einer Anzahl von Innenbehältem, wobei vorzugsweise in dem Zwischenraum zwischen den Innenbehältern und dem Aussenbehälter zur thermischen Isolation ein Vakuum herrscht. Derartige Behälter sind für den Einbau in Kraftfahrzeuge, Luftfahrzeuge oder Raumfahr- zeuge gedacht. Sie enthalten verflüssigte Gase, die zur Verwendung entweder als Treibstoff oder für andere Zwecke (etwa als Kühlmedium) dem Behälter entnommen werden.The invention relates to a container for cryogenic liquids, consisting of an outer container and a number of Innenbehältem, preferably in the space between the inner containers and the outer container for thermal insulation, a vacuum prevails. Such containers are intended for installation in motor vehicles, aircraft or spacecraft. They contain liquefied gases which are removed from the container for use either as fuel or for other purposes (such as cooling medium).
Die Vakuum - Isolation, meist noch durch weitere Maßnahmen verbes- seit, soll den Eintrag von Warme und damit ein Verdampfen der kryogenen Flüssigkeiten und die damit verbundene Drucksteigerung hintanhalten. Die kryogene Flüssigkeit kann aber auch bei hohem Druck gespeichert sein. Damit wird einerseits die gespeicherte Menge bei gleichem Volumen erhöht, andererseits aber wird der Behälter schwerer, um der Druckbelastung stand zu hal- ten.The vacuum insulation, mostly improved by further measures, is intended to prevent the entry of heat and thus evaporation of the cryogenic liquids and the associated increase in pressure. The cryogenic liquid can also be stored at high pressure. On the one hand, this increases the stored quantity for the same volume, but on the other hand, the container becomes heavier in order to withstand the pressure load.
Durch die Vakuum - Isolation wirkt aber jedenfalls ein Druck auf die Behälter. Der Aussenbehälter wird von aussen durch den Atmosphärendruck belastet, weil in seinem Inneren das Vakuum wirkt. Die Innenbehälter werden durch den vollen Innendruck belastet, weil sie von einem Vakuum umgeben sind. Diese Drucke sind bei einem insgesamt zylindrischen Behälter beherrschbar.In any case, the vacuum insulation has a pressure on the containers. The outer container is from the outside by the atmospheric pressure loaded, because in its interior the vacuum acts. The inner containers are loaded by the full internal pressure, because they are surrounded by a vacuum. These prints are manageable in a total cylindrical container.
Die zylindrische Behälterform ist aber für die Verwendung in Fahrzeu- gen aus Platzgründen sehr ungünstig. Deshalb geht die Entwicklung zu koffer- förmigen flachen Behältern. Bei flacher Bauweise sind aber sowohl Innen- als auch Aυssenbehälter auf Grund der großen ebenen und freien Flächen hohen Belastungen ausgesetzt, die nur durch massive Unterstützungen aufgefangen werden können. Das resultiert in erhöhtem Gewicht (bei Strassen- und Luft- fahizeugen besonders negativ) und vermehrter Wärmeleitung ins Innere des Behälters.However, the cylindrical container shape is very unfavorable for use in vehicles due to space limitations. That's why the development is turning into box-shaped flat containers. In a flat construction, however, both indoor and outdoor containers are exposed to high loads due to the large flat and free surfaces, which can only be absorbed by massive supports. This results in increased weight (particularly negative for road and air travel) and increased heat conduction inside the vessel.
Es ist daher Aufgabe der Erfindung, einen Behälter mit guter Raumausnutzung bei gleichzeitig niedrigem Gewicht zu entwickeln. Diese Aufgabe wird durch einen Behälter entsprechend Anspruch 1 gelöst. Definitionsgemäß wird unter Längsachsenrichtung eine Richtung im wesentlichen parallel zur Richtung der Längsachsen der benachbarten Innenbehälter verstanden. Kleine Abweichungen von der Parallelität fallen dabei in den Schutzumfang des gegenständlichen Schutzanspruches.It is therefore an object of the invention to develop a container with good space utilization at the same time low weight. This object is achieved by a container according to claim 1. By definition, longitudinal axis direction is understood to mean a direction substantially parallel to the direction of the longitudinal axes of the adjacent inner containers. Small deviations from parallelism fall within the scope of protection of this claim.
Erfindungsgemäß handejt es sich bei dem Behälter um einen Tank in Flachbauweise, wobei allerdings gewisse Abweichungen im Sinne einer leichten Wölbung der Decken-, Boden- und/oder Seitenfläche des Außenbehälters erlaubt sind und in den Schutzbereich des gegenständlichen Schutzanspruches fallen.According to the invention, the container is a tank in a flat construction, although certain deviations in the sense of a slight curvature of the top, bottom and / or side surface of the outer container are permitted and fall within the scope of the present protection claim.
Erfindungsgemäß sind in dem Außenbehälter mehrere Innenbehälter angeordnet, wobei die Längsachsen im wesentlichen parallel und in einer E- bene angeordnet sind. Geringe Abweichungen hinsichtlich der Parallelität der Längsachsen bzw. ein geringer axialer Versatz eines Innenbehälters aus einer gemeinsamen Ebene sind jedoch erlaubt und durch den Schutzumfang des gegenständlichen Schutzanspruches mit umfasst.According to the invention, a plurality of inner containers are arranged in the outer container, wherein the longitudinal axes are arranged substantially parallel and in a plane. Slight deviations with respect to the parallelism of the longitudinal axes or a slight axial offset of an inner container from a common level, however, are allowed and covered by the scope of protection of the present protection claim.
Die Begriffe „im wesentlichen parallel" und „im wesentlichen in einer Ebene" umfassen damit „parallel" und „in einer Ebene" sowie unwesentliche Abweichungen davon (bsp. durch Fertigungs- oder Kontruktionstoleranzen). Durch die erfindungsgemäß vorgeschlagene Stütze kann der Außenbehälter gegen auftretende Druck- und Zugbelastungen von innen wie von außen stabilisiert werden. Solche Druck- und Zugbelastungen können beispielsweise durch einen Evakuierung des Außentanks oder durch mechanische äußere Belastungen des Außentanks hervorgerufen werden. Erfindungsgemäß wird eine Bauweise eines flachen Behälters vorgeschlagen, die die aus dem Stand der Technik bekannten und diskutierten Nachteile nicht aufweist. Sie soll bei bester thermischer Isolation möglichst leicht und einfach sein. Nach einer Ausfuhrungsform der Erfindung wird das dadurch erreicht, dass die lnnenbehälter nebeneinander angeordnete Zylinder mit beiderseits einem Boden sind, und dass die ebenen Wandteile des Aussen- behälters durch zwischen den Zylindern angeordnete Stützen gegeneinander abgestützt sind. Dank der Anordnung mehrerer Innenbehälter nebeneinander (wobei nicht alle Innenbehälter unbedingt in einer Ebene nebeneinander angeordnet sein müssen) kann die bei Innendruck besonders günstige zylindrische Form beibehalten werden. Diese erlaubt es, auch bei relativ geringer Wandstärke die kryogene Flüssigkeit unter hohem Druck zu speichern. Dazu kommt noch der Vorteil, dass die Zylinder in der Art eines Baukastens für Behälter verschiedener Aussenabmessungen in verschiedener Anzahl und in verschiedenen Konstellationen verwendet werden können. Nach einer Ausfuhrungsform der Erfindung handelt es sich bei der Stütze um eine Druckstütze, also eine Stütze zur Abstützung von/gegen Druckkräften und/oder eine Zugstütze zur Abstützung von/gegen Zugkräfte. Nach einer Ausfuhrungsform der Erfindung sind die Innenbehälter als getrennte Behälter, beispielsweise als baulich getrennte zylindrische Tankbehälter vorgesehen, die über eine geeignete Vorrichtung, gegebenenfalls gemeinsam oder getrennt, befällt und/der entleert werden.The terms "substantially parallel" and "substantially in one plane" thus encompass "parallel" and "in one plane" as well as immaterial deviations therefrom (for example due to manufacturing or design tolerances). By the inventively proposed support the outer container can be stabilized against occurring compressive and tensile loads from the inside as well as from the outside. Such compressive and tensile loads can be caused for example by an evacuation of the outer tank or by mechanical external loads on the outer tank. According to the invention, a construction of a flat container is proposed which does not have the disadvantages known and discussed in the prior art. It should be as light and easy as possible with the best thermal insulation. According to one embodiment of the invention, this is achieved in that the inner containers are juxtaposed cylinders with a bottom on both sides, and that the planar wall parts of the outer container are supported against one another by supports disposed between the cylinders. Thanks to the arrangement of several inner container side by side (not all inner container necessarily in a plane next to each other must be arranged) can be maintained at internal pressure particularly favorable cylindrical shape. This makes it possible to store the cryogenic liquid under high pressure even with relatively small wall thickness. In addition there is the advantage that the cylinders can be used in the manner of a modular system for containers of different external dimensions in different numbers and in different constellations. According to one embodiment of the invention, the support is a pressure support, that is to say a support for the support of / against compressive forces and / or a tensile support for the support of / against tensile forces. According to one embodiment of the invention, the inner containers are provided as separate containers, for example as structurally separate cylindrical tank containers, which are filled and / or emptied via a suitable device, optionally together or separately.
Die Abstützung der ebenen Wandteile gegeneinander macht es möglich, mehrere Innenbehälter mit einem gemeinsamen Aussenbehälter zu umgeben, weil der auf die dadurch geschaffenen ebenen Flächen wirkende Atmosphärendruck ohne Belastung der InnenbehäJter aufgefangen werden kann. Diese Abstützung erlaubt eine erhebliche Verminderung der Wandstärke des Aussenbehälters und eine entsprechende Gewichtsreduktion. Die Unteran- Sprüche haben vorteilhafte Aus- und Weiterbildungen zum Gegenstand.The support of the planar wall parts against each other makes it possible to surround a plurality of inner container with a common outer container, because the acting on the flat surfaces created thereby atmospheric pressure can be collected without loading the InnenbehäJter. This support allows a significant reduction in the wall thickness of the outer container and a corresponding weight reduction. The subclaims have advantageous embodiments and further developments of the subject.
Nach einer Ausruhrungsform der Erfindung weist die Stütze, bezogen auf einen Schnitt der Stütze mit der Ebene der Längsachsen der benachbarten Innenbehälter, eine entlang der Längsachsenrichtung gemessene maximale Längenausdehnung sowie normal dazu eine zwischen den benachbarten In- nentanks gemessene maximale Breitenausdehnung auf . Nach einer besonderen Ausruhrungsform der Erfindung beträgt das Verhältnis von maximaler Längenausdehnung zu maximaler Breitenausdehnung zumindest 1,25:1. Hierdurch ergibt sich eine besonders gute Stabilität des erfindungsgemäßen Behälters. Besteht die Stütze zwischen zwei Innenbehältern aus mehreren entlang der Längsachse angeordneten Stützelementen so werden die maximalen Längenausdehnungen bzw. maximalen Breitenausdehnungen der Stützelemente zur Ermittlung der effektiven Gesamtlängenausdehnung bzw. Gesamtbreiten- ausdehnung der zwischen den Innenbehältem wirkenden Stütze addiert. Über- deckungen von zwei oder mehreren Drückstützelementen in Längs- oder Breitenrichtung tragen dabei nur einmal zur Ermittlung der effektiven Gesamtlänge bzw. der effektiven Gesamtbreite der Stütze bei. Die so ermittelte effektive Gesamtlänge bzw. Gesamtbreite der Stützelemente wird als Abmessung (Län- genausdehnυng, Breitenausdehnung) der Stütze angesehen.According to a Ausrhrungungsform of the invention, based on a section of the support with the plane of the longitudinal axes of the adjacent inner container, the support has a measured along the longitudinal axis direction maximum longitudinal extent and normal to a measured between the adjacent inner tanks maximum width extension. According to a particular embodiment of the invention, the ratio of maximum length extension to maximum width extension is at least 1.25: 1. This results in a particularly good stability of the container according to the invention. If the support between two inner containers consists of a plurality of support elements arranged along the longitudinal axis, the maximum length expansions or maximum width expansions of the support elements are added to determine the effective total length extension or overall width extension of the support acting between the inner containers. Overcovers of two or more pressure-bearing support elements in the longitudinal or width direction contribute only once to the determination of the effective total length or the effective overall width of the support. The thus determined effective Overall length or overall width of the support elements is considered as dimension (length extension, width extension) of the support.
Nach einer weiteren Ausfiihrungsform der Erfindung ist es besonders vorteilhaft wenn die Stützelemente symmetrisch bzw. in annähernd gleichen Abständen zueinander in Richtung der Längsachse der Innenbehälter gesehen angeordnet sind. Hierdurch ist gewährleistet, dass der Krafteintrag über den Außenbehälter gleichmäßig, ohne Verzerrung der Behälterkonstruktion erfolgt.According to a further embodiment of the invention, it is particularly advantageous if the support elements are arranged symmetrically or at approximately equal distances from one another viewed in the direction of the longitudinal axis of the inner container. This ensures that the force input through the outer container occurs evenly, without distortion of the container construction.
Nach einer weiteren AusfÜhrungsform der Erfindung beträgt das Verhältnis von maximaler Längenausdehnung zu maximaler Breitenausdehnung zumindest 2:1.According to a further embodiment of the invention, the ratio of maximum length extension to maximum width extension is at least 2: 1.
Nach einer weiteren Ausfiihrungsform der Erfindung beträgt das Verhältnis von maximaler Längenausdehnung zu maximaler Breitenausdehnung zumindest 5:1.According to a further embodiment of the invention, the ratio of maximum length extension to maximum width extension is at least 5: 1.
Nach einer weiteren AusfÜhrungsform deT Erfindung ist die Decken- wand gegenüber der Bodenwand längs zwischen den zumindest zwei Innenbehälter, in Längsachsenrichtung , über zumindest 10% der Länge des Außenbehälters durch die Stütze abgestützt.According to a further embodiment of the invention, the cover wall is supported by the support along the bottom wall along the at least two inner containers, in the longitudinal axis direction, over at least 10% of the length of the outer container.
Nach einer weiteren Ausruhrungsform der Erfindung ist die Deckenwand gegenüber der Bodenwand längs zwischen den zumindest zwei Innen- behälter, in Längsachsenrichtung, über zumindest 25% der Länge des Außenbehälters durch die Stütze abgestützt.According to a further embodiment of the invention, the top wall is supported relative to the bottom wall along the at least two inner containers, in the longitudinal axis direction, over at least 25% of the length of the outer container by the support.
Nach einer besonderen Ausruhrungsform weist die Drückstütze eine Mindestlänge von zumindest 10%, insbesondere von zumindest 25%, der Längsabmessung des Außenbehälters auf. Nach einer besonderen Ausfiihrungsform weist die Drückstütze eineAccording to a particular Ausruhrungsform, the push-rest on a minimum length of at least 10%, in particular of at least 25%, the longitudinal dimension of the outer container. According to a particular embodiment, the push-on support has a
Mindestlänge von zumindest 10%, insbesondere von zumindest 25%, der Längsabmessung des Innenbehälters auf. Nach einer weiteren Ausführungsform der Erfindung weist die längs zwischen den zumindest zwei Innenbehältern angeordnete Stütze mehrere getrennte Stützelemente auf.Minimum length of at least 10%, in particular of at least 25%, of the longitudinal dimension of the inner container. According to a further embodiment of the invention, the longitudinally arranged between the at least two inner containers support several separate support elements.
Nach einer weiteren Ausfuhrungsform der Erfindung erstreckt sich die Stütze über die ganze Länge der zumindest zwei Innenbehälter. Nach einer weiteren Ausfuhrungsform der Erfindung sind die zumindest zwei Innenbehälter zylindrisch ausgeführt.According to a further embodiment of the invention, the support extends over the entire length of the at least two inner container. According to a further embodiment of the invention, the at least two inner containers are cylindrical.
Nach einer weiteren Ausführungsform der Erfindung sind die zumindest zwei Innenbehälter an ihren Enden an den Seitenwänden des Aussenbehälters aufgehängt, sodass Wärmedehnungen in Längsrichtung aufgenommen wer- den.According to a further embodiment of the invention, the at least two inner containers are suspended at their ends on the side walls of the outer container, so that thermal expansions are taken in the longitudinal direction.
Nach einer weiteren Ausfuhrungsform der Erfindung bestehen die Innenbehälter aus Edelstahl.According to a further embodiment of the invention, the inner container made of stainless steel.
Nach einer weiteren Ausführungsfoπn der Erfindung sind die Innenbe- hälter von in einer Kunststof&natrix gebetteten Karbonfasern umgeben. Nach einer weiteren Ausführungsfoπn der Erfindung sind die Innenbehälter an ihren beiderseitigen Böden an Stirnwänden des Aussenbehälters aufgehängt, sodass Wärmedehnungen in Längsrichtung aufgenommen werden.According to a further embodiment of the invention, the inner containers are surrounded by carbon fibers embedded in a plastic matrix. According to a further embodiment of the invention, the inner containers are suspended at their mutual bottoms at end walls of the outer container, so that thermal expansions are taken in the longitudinal direction.
Nach einer weiteren Ausfuhrungsform der Erfindung sind die Innenbe- hälter an einem Ende mit einer Stirnwand des Aussenbehälters fest verbunden und an dem anderen Ende in Längsrichtung frei beweglich.According to a further embodiment of the invention, the inner containers are fixedly connected at one end to an end wall of the outer container and freely movable at the other end in the longitudinal direction.
Nach einer weiteren Ausfuhrungsform der Erfindung besteht der Aus- senbehälter aus dünnem Blech und ist mit in einer Kunststofmiatrix gebetteten Faser umwickelt. Nach einer bevorzugten Ausmhrungsform kann die Stütze auch derart ausgeführt sein, dass Sie den Innenbehälter transversal (also quer zur Längsachsenrichtung), entweder in Richtung der Breite des Außenbehälters und/oder in Richtung der Höhe des Außenbehälters zumindest teilweise ab- 5 stützt bzw. die Innenbehälter in diesen Richtungen zumindest teilweise in Position hält.According to a further embodiment of the invention, the outer container consists of thin sheet metal and is wrapped with fiber embedded in a plastic matrix. According to a preferred Ausmrungsform the support can also be designed so that you the inner container transversely (ie transversely to the longitudinal axis direction), either in the direction of the width of the outer container and / or in the direction of the height of the outer container at least partially off 5 supports or keeps the inner container in these directions at least partially in position.
Im folgenden wird die Erfindung anhand von beispielhaften und schematischen Abbildungen beschrieben und erläutert. Es stellen dar:In the following the invention will be described and explained with reference to exemplary and schematic figures. They show:
Fig. 1 : Eine axonometrische Ansicht eines erfindungsgemäßen Behäl- 10 ters,1 shows an axonometric view of a container 10 according to the invention,
Fig. 2: eine Draufsicht auf denselben, Fig. 3: eine Seitenansicht desselben, Fig. 4: einen Schnitt nach C-C in Fig. 3, Fig. 5: eine alternative Ausführungsform zu Fig. 4, 15 Fig. 6: Längsschnitt nach VI-VI in Fig. 5.3: a side view of the same, FIG. 4: a section according to CC in FIG. 3, FIG. 5: an alternative embodiment to FIGS. 4, 15; FIG. 6: longitudinal section according to FIG -VI in Fig. 5.
Fig. 7: eine alternative Ausführungsform zu Fig. 2 im Schnitt nach VII-7 shows an alternative embodiment to FIG. 2 in section according to VII-
VII in Fig. 8 Fig.8: einen Schnitt nach VIII-Vm in Fig. 7VII in FIG. 8 FIG. 8 shows a section according to VIII-Vm in FIG. 7
20 In den Figuren 1 bis 4 ist der Außenbehälter summarisch mit I und sind die darin parallel nebeneinander angeordneten Innenbehälter mit 2, 3, und 4 bezeichnet. Die Innenbehälter sind zylindrische Rohre, vorzugsweise aus Edelstahl. Der sie mit Abstand umgebende Außenbehälter 1 kann so eine flache Bauform erhalten. Er ist im wesentlichen ein flacher Quader, dessen Sei-In FIGS. 1 to 4, the outer container is summarily denoted by I and the inner containers arranged parallel to each other therein are denoted by 2, 3, and 4. The inner containers are cylindrical tubes, preferably made of stainless steel. The surrounding outer container 1 with distance can thus obtain a flat design. It is essentially a flat cuboid whose side
25 tenilächen abgerundet sein können. Jedenfalls aber hat er zwei ebene Wandteile 10, 11. In dem Zwischenraum 5 zwischen den Innenbehältem 2, 3, 4 und dem Außenbehälter 1 herrscht zur thermischen Isolation ein Vakuum, dass gemeinsam mit weiteren Maßnahmen eine sogenannte „Superisolation" bildet. Durch das Vakuum in dem Zwischenraum 5 werden die ebenen Wandteile 10,25 tenilächen can be rounded. In any case, however, it has two flat wall parts 10, 11. In the intermediate space 5 between the inner containers 2, 3, 4 and the outer container 1, there is a vacuum for thermal insulation, which forms a so-called "superinsulation" together with further measures the gap 5, the flat wall parts 10,
30 11 durch den Atmosphärendruck zusammengedrückt. Andererseits werden die Innenbehälter 2, 3, 4 bereits bei in ihnen herrschendem Atmosphärendruck nach außen gedrückt. Wenn die kryogene Flüssigkeit in den Innenbehältem 2, 3, 4 unter einem höheren Druck gespeichert ist, ist die Zugbelastung der zy- lindrischen Wände und der Böden 7, 8 der Innenbehälter 2, 3, 4 entsprechend größer.30 11 compressed by the atmospheric pressure. On the other hand, the inner containers 2, 3, 4 are already pressed to the outside at atmospheric pressure prevailing in them. If the cryogenic liquid is stored in the inner containers 2, 3, 4 under a higher pressure, the tensile load of the zy- cylindrical walls and the bottoms 7, 8 of the inner container 2, 3, 4 correspondingly larger.
Zur Aufnahme der auf die ebenen Wandteile 10, 11 des Außenbehälters 1 wirkenden Druckkräfte sind diese gegeneinander durch Stützen 12, 13 abge- stützt. Diese verbinden, wie in Fig. 4 zu sehen, die beiden ebenen Wandteile 10, 11, wobei sie zwischen den Innenbehältem 2, 3 bzw 3, 4 hindurchfuhren, vorzugsweise ohne diese zu berühren. In Fig.2 sind die Stützen 12, 13 einzelne Stützen. Die Innenbehälter 2, 3, 4 können in bekannter Weise mittels beiderseitiger an sich bekannter Aufhängungen 17, 18 an den Stirnwänden 14, 15 aufgehängt sein.For receiving the compressive forces acting on the flat wall parts 10, 11 of the outer container 1, these are supported against one another by supports 12, 13. These connect, as seen in Fig. 4, the two flat wall parts 10, 11, wherein they pass between the inner container 2, 3 or 3, 4, preferably without touching them. In Fig.2, the supports 12, 13 individual supports. The inner container 2, 3, 4 can be suspended in a known manner by means of mutually known suspensions 17, 18 on the end walls 14, 15.
Die abgewandelte Ausfuhrungsforrn der Fig. 5 und 6 unterscheidet sich davon dadurch, dass die Stützen 22, 23 sich über die Länge der Innenbehälter 2, 3, 4 erstrecken und dass die Innenbehälter 2, 3, 4 nur einerseits mittels wärmeisolierender Füße 32 an einer Stirnwand 33 des Außenbehälters 1 befestigt und mit ihrem anderen Ende frei beweglich sind. Wie in Fig. 5 zu sehen, sind die Stützen 23, 24 I-förmige Profile, deren Fußteile 24, 25 innen an den ebenen Wänden 10, 11 anliegen und deren Stegteile Verstärkungsrippen 26 aufweisen, um deren Knickfestigkeit zu erhöhen. Bei ausreichender Entfer- nung der Innenbehälter 2, 3, 4 können diese mit einer Umwicklung aus in einer Kunststoffinatrix gebetteten KohlenstofrTasern 30 versehen sein, um bei möglichst geringem Gewicht hohen Innendrücken stand zu halten. In ähnlicher Weise kann auch der Außenbehälter 1 aus einem sehr dünnen Blech bestehen, wenn er ebenfalls mit einer faserverstärkten Umwicklung 31 versehen ist.The modified Ausfuhrungsforrn of Fig. 5 and 6 differs from it by the fact that the supports 22, 23 extend over the length of the inner container 2, 3, 4 and that the inner container 2, 3, 4 only one hand by means of heat insulating feet 32 on an end wall 33 of the outer container 1 are fixed and freely movable with its other end. As can be seen in Fig. 5, the supports 23, 24 are I-shaped profiles, the foot parts 24, 25 bear against the inner walls on the flat walls 10, 11 and the web portions have reinforcing ribs 26 in order to increase their buckling strength. If the inner containers 2, 3, 4 are sufficiently removed, they can be provided with a wrapping of carbon fibers 30 embedded in a plastic matrix in order to withstand high internal pressures with the lowest possible weight. Similarly, the outer container 1 may be made of a very thin sheet metal, if it is also provided with a fiber-reinforced wrapping 31.
In Fig. 7 und Fig. 8 ist eine weitere mögliche Ausfuhrungsform eines erfindungsgemäßen Behälters für eine kryogene Flüssigkeit dargestellt. Der Behälter weist dabei einen Außenbehälter 40 mit einer Länge L, einer Breite B sowie einer Bauhöhe H auf.FIGS. 7 and 8 show a further possible embodiment of a container according to the invention for a cryogenic liquid. Of the Container has an outer container 40 with a length L, a width B and a height H.
Die weitere mögliche AusfÜhrungsfoπn nach Fig. 7 und Fig.8 unterscheidet sich von anderen Ausfuhrungsformen dadurch, dass die Stütze 34 zwei getrennte längliche Stützelemente 35 und 36 aufweist, die entlang der Längsachsen 37 der Innenbehälter 38, also in Längsachsenrichtung, angeordnet sind. In Fig. 7 ist dabei ein Schnitt der Stütze entlang der Ebene durch die beiden Längsachsen 37 der Innenbehälter 38 ersichtlich. Durch Addition der Längen der Querschnitte der Stützelemente 35 und 36 in Längsachsenrichtung, ergibt sich, dass der Außenbehälter 40 über mehr als 50 % seiner Län- genausdehnung durch die Stütze 34 zwischen seiner Bodenwand 41 und seiner Deckenwand 42 abgestützt wird. Weiters ist ersichtlich, dass die Längenausdehnung (entlang der Längsachse der zylindrischen Innenbehälter) der Stütze im Querschnitt ein Vielfaches der Breitenausdehnung derselben beträgt. Zur Ermittlung der Längenausdehnung bzw, der Breitenausdehnung werden die maximalen Längenabmessungen bzw. maximalen Breitenabmessungern des Querschnitts der einzelnen, jeweils zwischen zwei Innenbehälter angeordneten, Stützelemente addiert. Sich in Richtung der Längsachse oder in Richtung der Breite überlagernde Anteile des Querschnittes (Schnitt mit Ebene durch die beiden Längsachsen 37) der Stützelemente werden in dieser Addition nur einmal berücksichtigt.The further possible embodiment according to FIGS. 7 and 8 differs from other embodiments in that the support 34 has two separate elongate support elements 35 and 36 which are arranged along the longitudinal axes 37 of the inner containers 38, ie in the longitudinal axis direction. In Fig. 7 is a section of the support along the plane through the two longitudinal axes 37 of the inner container 38 can be seen. By adding the lengths of the cross sections of the support elements 35 and 36 in the longitudinal axis direction, it follows that the outer container 40 is supported by the support 34 between its bottom wall 41 and its top wall 42 over more than 50% of its length. Furthermore, it can be seen that the longitudinal extent (along the longitudinal axis of the cylindrical inner container) of the support in cross-section is a multiple of the width dimension thereof. In order to determine the length extension or the width extension, the maximum length dimensions or maximum width dimensions of the cross section of the individual support elements, each arranged between two inner containers, are added. Shares of the cross section overlapping in the direction of the longitudinal axis or in the direction of the width (section with plane through the two longitudinal axes 37) of the support elements are taken into account only once in this addition.
In Fig. 8 ist ersichtlich dass die Stütze 34 im Bereich der Boden- sowie der Deckenwand des Außenbehälters 40 eine zusätzliche Verstärkung 39 aufweist. Hierdurch kann die wechselseitige Krafteinleitung zwischen Außentank und Stütze verbessert werden. In Fig. 7 und Fig. 8 zeigt sich, dass in der dar- gestellten Ausfuhrungsform die kumulierte Ausdehnung der Querschnittsfläche der Stütze 34 in Richtung der Längsachse wesentlich größer ist als in Richtung zwischen den Innenbehältern und rechtwinkelig zur Längsachse also in Richtung der Breite des Außenbehälters 40. Der Außenbehälter 40 ist in Fig. 7 und Fig. 8 jeweils nur schematisch dargestellt. In Fig. 8 it can be seen that the support 34 in the region of the bottom and the top wall of the outer container 40 has an additional reinforcement 39. As a result, the reciprocal introduction of force between the outer tank and the support can be improved. FIGS. 7 and 8 show that in the illustrated embodiment, the cumulative extent of the cross-sectional area of the support 34 in the direction of the longitudinal axis is substantially greater than in the direction between the inner containers and at right angles to the longitudinal axis in the direction of the width of the outer container 40. The outer container 40 is shown in Fig. 7 and Fig. 8 only schematically.

Claims

P a t e n t a n s p r ü c h e Patent claims
1. Behälter für kryogene Flüssigkeiten mit einem evakυierbaren Außenbehälter in Flachbauweise, wobei der Außenbehälter eine im wesentlichen e- bene Bodenwand, eine im wesentlichen ebene Deckenwand sowie Seitenwän- de aufweist, und mit zumindest zwei in dem Außenbehälter angeordneten Innenbehälter, wobei jeder der Innenbehälter eine Längsachse aufweist und die zumindest zwei Innenbehälter mit im wesentlichen parallel ausgerichteten Längsachsen nebeneinander im wesentlichen in einer Ebene angeordnet sind, sowie mit einer Stütze zur Abstützung der Bodenwand gegen die Deckenwand des Außenbehälters, wobei die Stütze längs zwischen den zumindest zwei Innentanks angeordnet ist und die Stütze, bezogen auf einen Schnitt der Stütze mit der Ebene der Längsachsen der benachbarten Innenbehälter, in Längsachsenrichtung eine größere Abmessung aufweist als in einer Richtung rechtwinkelig zur Längsachsenrichtung.A container for cryogenic liquids having an evacuable outer container in a flat construction, the outer container having a substantially ebene bottom wall, a substantially flat top wall and side walls, and having at least two arranged in the outer container inner container, each of the inner container a Has longitudinal axis and the at least two inner container with substantially parallel longitudinal axes are arranged side by side substantially in a plane, and with a support for supporting the bottom wall against the top wall of the outer container, wherein the support is longitudinally disposed between the at least two inner tanks and the support , relative to a section of the support with the plane of the longitudinal axes of the adjacent inner container, in the longitudinal axis direction has a larger dimension than in a direction perpendicular to the longitudinal axis direction.
2. Behälter nach Anspruch 1, wobei die Stütze, bezogen auf den Schnitt der Stütze mit der Ebene der Längsachsen der benachbarten Innenbehälter, eine in Längsachsenrichtung gemessene maximale Längenausdehnung sowie normal dazu eine zwischen den benachbarten Innentanks gemessene maximale Breitenausdehnung aufweist und das Verhältnis von maximaler Längenausdehnung zu maximaler Breitenausdehnung zumindest 1,25:1 beträgt.2. A container according to claim 1, wherein the support, based on the section of the support with the plane of the longitudinal axes of the adjacent inner container, having a measured in the longitudinal axis direction of maximum longitudinal extent and normal thereto a measured between the adjacent inner tanks maximum width dimension and the ratio of maximum length expansion to maximum width extent at least 1.25: 1.
3. Behälter nach Anspruch 2, wobei das Verhältnis von maximaler Längenausdehnung zu maximaler Breitenausdehnung zumindest 2:1 beträgt. 3. A container according to claim 2, wherein the ratio of maximum length extension to maximum width extension is at least 2: 1.
4. Behälter nach Anspruch 2, wobei das Verhältnis von maximaler Längenausdehnung zu maximaler Breitenausdehnung zumindest 5:1 beträgt.4. A container according to claim 2, wherein the ratio of maximum length extension to maximum width extension is at least 5: 1.
5. Behälter nach einem der Ansprüche 1 bis 4, wobei die Deckenwand gegenüber der Bodenwand zwischen den zumindest zwei Innenbehälter, in5. Container according to one of claims 1 to 4, wherein the top wall opposite the bottom wall between the at least two inner container, in
Längsachsen-Richtung, über zumindest 10% der Länge des Außenbehälters durch die Stütze abgestützt ist.Longitudinal axis direction is supported over at least 10% of the length of the outer container by the support.
6. Behälter nach Anspruch 5, wobei die Deckenwand gegenüber der Bodenwand zwischen den zumindest zwei Innenbehälter, in Längsachsenrichtung, über zumindest 25%, insbesondere über zumindest 50 %, der Länge des Außenbehälters durch die Stütze abgestützt ist.6. Container according to claim 5, wherein the top wall opposite the bottom wall between the at least two inner container, in the longitudinal axis direction, over at least 25%, in particular over at least 50%, of the length of the outer container is supported by the support.
7. Behälter nach einem der Ansprüche 1 bis 6, wobei die längs zwischen den zumindest zwei Innenbehältern angeordnete Stütze mehrere getrennte7. Container according to one of claims 1 to 6, wherein the longitudinally arranged between the at least two inner containers support several separate
Stützelemente aufweist.Having support elements.
8. Behälter nach einem der Ansprüche 1 bis 7, wobei sich die Stütze ü- ber die ganze Länge der zumindest zwei Innenbehälter erstreckt.8. Container according to one of claims 1 to 7, wherein the support Ü extends over the entire length of the at least two inner container.
9. Behälter nach einem der Ansprüche 1 bis 8, wobei die zumindest zwei Innenbehälter jeweils im wesentlichen zylindrisch ausgeführt sind.9. A container according to any one of claims 1 to 8, wherein the at least two inner containers are each made substantially cylindrical.
10. Behälter nach einem der Ansprüche 1 bis 9, dadurch gekennzeich- net, dass die zumindest zwei Innenbehälter an ihren Enden an den Seitenwänden des Aussenbehälters aufgehängt sind, sodass Wärmedehnungen in Längsrichtung aufgenommen werden. 10. Container according to one of claims 1 to 9, characterized marked, that the at least two inner containers are suspended at their ends on the side walls of the outer container, so that thermal expansions are taken in the longitudinal direction.
11. Behälter nach einem der Ansprüche 1 bis .10, wobei die Stütze zumindest teilweise aus Kohlefaser besteht. 11. A container according to any one of claims 1 to 10, wherein the support consists at least partially of carbon fiber.
PCT/EP2007/003330 2006-04-14 2007-04-16 Container for cryogenic liquids WO2007118695A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2009508155A JP2009533637A (en) 2006-04-14 2007-04-16 Cryogenic liquid container
EP07724268A EP2008014B1 (en) 2006-04-14 2007-04-16 Container for cryogenic liquids
DE502007001200T DE502007001200D1 (en) 2006-04-14 2007-04-16 CONTAINER FOR CRYOGENEOUS LIQUIDS
US12/297,006 US20090301104A1 (en) 2006-04-14 2007-04-16 Container for cryogenic liquids
AT07724268T ATE438062T1 (en) 2006-04-14 2007-04-16 CONTAINER FOR CRYOGENIC LIQUIDS

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AT0030606U AT9456U1 (en) 2006-04-14 2006-04-14 CONTAINER FOR CRYOGENEOUS LIQUIDS
ATGM306/2006 2006-04-14

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ATE438062T1 (en) 2009-08-15
EP2008014A1 (en) 2008-12-31
EP2008014B1 (en) 2009-07-29
US20090301104A1 (en) 2009-12-10
JP2009533637A (en) 2009-09-17
DE502007001200D1 (en) 2009-09-10

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