EP4652397A1 - Speicherbehälter und verfahren - Google Patents
Speicherbehälter und verfahrenInfo
- Publication number
- EP4652397A1 EP4652397A1 EP24700170.4A EP24700170A EP4652397A1 EP 4652397 A1 EP4652397 A1 EP 4652397A1 EP 24700170 A EP24700170 A EP 24700170A EP 4652397 A1 EP4652397 A1 EP 4652397A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- insulation
- layers
- storage container
- section
- support frame
- 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.)
- Pending
Links
Classifications
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- 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
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
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- 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
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/04—Vessels not under pressure with provision for thermal insulation by insulating layers
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- 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
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/08—Vessels not under pressure with provision for thermal insulation by vacuum spaces, e.g. Dewar flask
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- 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
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- 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
- F17C2201/03—Orientation
- F17C2201/035—Orientation with substantially horizontal main axis
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- 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
- F17C2201/054—Size medium (>1 m3)
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- 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)
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- 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
- F17C2203/0304—Thermal insulations by solid means
- F17C2203/0308—Radiation shield
- F17C2203/032—Multi-sheet layers
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- 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
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- 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
- F17C2203/0626—Multiple walls
- F17C2203/0629—Two walls
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- 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
- F17C2221/01—Pure fluids
- F17C2221/011—Oxygen
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- 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
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
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- 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
- F17C2221/01—Pure fluids
- F17C2221/014—Nitrogen
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- 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
- F17C2221/01—Pure fluids
- F17C2221/016—Noble gases (Ar, Kr, Xe)
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- 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
- F17C2221/01—Pure fluids
- F17C2221/016—Noble gases (Ar, Kr, Xe)
- F17C2221/017—Helium
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- 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
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- 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
- F17C2223/033—Small pressure, e.g. for liquefied gas
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- 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
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- 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
- F17C2270/0102—Applications for fluid transport or storage on or in the water
- F17C2270/0105—Ships
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- 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
Definitions
- the invention relates to a storage container for storing a cryogen and a method for producing a bottom insulation for such a storage container.
- the applicant is aware of in-house double-walled storage containers for liquid hydrogen, which have an outer container and an inner container arranged within the outer container for holding the liquid hydrogen.
- a gap provided between the inner container and the outer container is subjected to a vacuum.
- a multi-layer insulation layer can be arranged in the gap, which envelops the inner container.
- the inner container is cylindrical, with the insulation layer on the bottom sections being made up of individual layers of metallic foil and non-metallic intermediate layers.
- US 3 540 615 A relates to a multilayer insulation for cryogenic containers and forms the preamble of claim 1.
- an object of the present invention is to provide an improved storage container.
- the storage container comprises an inner container for accommodating the cryogen, an outer container in which the inner container is accommodated, and an insulation layer which envelops the inner container, wherein the inner container has a tubular base section and two bottom sections which close the base section at the front, wherein the insulation layer has bottom insulations attached to the bottom sections, and wherein each bottom insulation is composed of a plurality of ring-segment-shaped insulation elements.
- the storage container is particularly suitable for transporting the cryogen. Therefore, the storage container can also be referred to as a transport container.
- the storage container is at least double-walled and can therefore also be referred to as a double-walled storage container.
- the cryogen can be liquid hydrogen.
- the term "cryogen” can therefore be exchanged for the term "hydrogen” and vice versa.
- the cryogen can also be liquid helium, liquid nitrogen, liquid oxygen, argon, neon or the like.
- the storage container is preferably suitable for holding liquid hydrogen, it can also be referred to as a hydrogen storage container or a hydrogen storage tank.
- the storage container can be part of a vehicle, in particular a watercraft. In this case, the storage container is suitable for mobile applications. However, the storage container can also be used stationary, for example in building technology.
- the storage container is preferably constructed rotationally symmetrically to a symmetry or central axis. Accordingly, the inner container and the outer container are also constructed rotationally symmetrically to the central axis.
- the storage container is preferably arranged such that the central axis runs perpendicular to a direction of gravity. This means that the storage container is arranged horizontally. However, the storage container can also be arranged vertically. In this case, the central axis is oriented parallel to the direction of gravity.
- the inner container and the outer container are preferably both cylindrical.
- the outer container like the inner container, preferably has a tubular or cylindrical base section that is rotationally symmetrical to the central axis. Both the base section of the inner container and the base section of the outer container are preferably closed at the end with two outwardly curved base sections. However, this is not absolutely necessary.
- the base sections can also be designed differently.
- the inner container is in particular arranged completely within the outer container, so that the outer container completely or partially envelops or covers the inner container.
- the inner container can also be referred to as an inner tank.
- the outer container can also be referred to as an outer tank.
- the bottom sections of the inner container are preferably welded to the base section of the inner container.
- a corresponding bottom weld seam is provided.
- a bottom insulation as mentioned above is attached to each of the bottom sections. This means in particular that Preferably two bottom insulations are provided, which are part of the insulation layer surrounding the inner container.
- a "ring segment” is understood here to mean a section of a ring.
- the floor insulation is preferably ring-shaped.
- the floor insulation preferably has a central opening through which a central nozzle attached to the respective floor section can be passed. Each floor section can be assigned such a central nozzle.
- the inner container is suspended from the outer container with the help of the central nozzle.
- the insulation elements are in particular prefabricated.
- the insulation elements have a (commercially available) multilayer insulation (MLI).
- MMI multilayer insulation
- the insulation elements are block-shaped.
- the insulation elements are arranged next to one another to form the floor insulation.
- the insulation elements are in particular wedge-shaped or pie-shaped.
- the floor insulation has a plurality of insulation layers arranged one above the other, each of which is composed of a plurality of insulation elements, wherein the insulation elements of the different insulation layers are arranged circumferentially offset from one another.
- the number of insulation layers is arbitrary. For example, two, three, four, five or more than five such insulation layers can be provided, which are arranged one above the other. However, at least two insulation layers are provided. Because the insulation elements of the different insulation layers are arranged offset from one another around the circumference, abutting edges of the insulation elements of an insulation layer are oriented in such a way that they are covered by insulation elements of an insulation layer above or below it. In particular, each insulation element has two abutting edges that are arranged at an angle to one another. When forming the floor insulation, the insulation elements are arranged in such a way that abutting edges of adjacent insulation elements face one another.
- the floor insulation has a supporting frame that supports the insulation layers. This makes it possible to form a (self-supporting) assembly consisting of a supporting frame and insulation elements applied to it, which can be pre-assembled and then applied to a respective floor section.
- the supporting structure is curved in particular like the respective floor section.
- the supporting structure can be strut-shaped or lattice-shaped.
- the supporting structure is made of expanded metal.
- the supporting structure is firmly connected to the respective floor section.
- the supporting structure can be welded to the respective floor section.
- the floor insulation has a holding plate, wherein the insulation layers are arranged between the supporting structure and the holding plate.
- the retaining plate can be an aluminum sheet, for example.
- To form the floor insulation several layers of insulation are first placed on the supporting frame and then covered with the retaining plate. This results in a sandwich-like structure of the floor insulation, with the layers of insulation placed between the supporting frame and the retaining plate.
- the supporting frame, the insulation layers and the retaining plate are sewn together.
- stainless steel wire can be used as the suture material.
- several ring-shaped sutures can be provided.
- the sutures can run radially and/or circumferentially as desired.
- the sutures can also be zigzag-shaped.
- the floor insulation has a ring connected to the support structure which runs around the base section.
- the ring is guided in particular over the respective floor weld seam, which connects the respective floor section to the base section.
- the ring can, for example, be connected directly to the supporting structure. However, the ring can also be connected to the supporting structure using strip-shaped or sheet-shaped connectors.
- the ring is connected to the base portion by means of strip-shaped connectors.
- the connectors can also be used to connect the ring to the supporting structure.
- the connectors are strip-shaped or band-shaped.
- the connectors are welded to the base section.
- appropriate pads or welding points can be provided on the base section.
- the insulation elements are folded over an edge of the supporting frame, so that the insulation layers each have a first section arranged on the supporting frame and a second section folded over the edge.
- the first sections of the insulation layers are arranged one above the other.
- the first sections are arranged between the support frame and the aforementioned retaining plate.
- the second sections are ring-shaped or tubular.
- the second sections can cover the aforementioned ring.
- the second section of the second insulation layer is preferably shorter in the axial direction of the storage container than the second section of the first insulation layer.
- the second section of the first insulation layer does not completely cover the second section of the second insulation layer, so that an area of the first insulation layer remains uncovered by the second insulation layer.
- the second sections of different insulation layers are therefore preferably cut in such a way that a stepped geometry results in the second sections.
- a respective nth insulation layer therefore preferably has a shorter second section than the respective (n-1)th insulation layer located underneath it.
- the second section is fixed by means of an annular retaining plate.
- Such a retaining plate can be assigned to each second section.
- the ring-shaped retaining plates are attached to the insulation layers.
- the retaining plates are aluminum sheets.
- the insulation elements have a plurality of alternately arranged layers of metallic foil and non-metallic material layer.
- the metallic foil can be a metal foil or a metal-coated foil.
- the insulation elements have a plurality of alternately arranged layers of aluminum foil and glass paper and/or glass silk.
- each insulation element comprises ten to fifteen alternating layers of aluminum foil and glass paper and/or glass silk.
- the layers or layers of perforated and/or embossed aluminum foil act as a reflector and the glass paper and/or glass silk act as a spacer between adjacent aluminum foils.
- mutually facing abutting edges of the insulation elements are wrapped with a non-metallic material layer, preferably with glass paper and/or glass silk.
- the insulation elements are placed in particular in such a way that there is no gap or a gap of only a few millimeters between the abutting edges of adjacent insulation elements.
- the insulation layer has a plurality of alternately arranged layers of metallic foil and non-metallic material layer (multilayer insulation), in particular a plurality of alternately arranged layers of perforated and/or embossed aluminum foil and glass paper and/or glass silk wound on the base portion.
- a metallic foil may be a metal foil or a metal-coated foil.
- the bottom insulation is attached to the bottom sections of the inner container.
- the layers of, for example, aluminium foil and glass paper and/or glass silk are then wound onto the base section.
- the previously mentioned step geometry on the second sections of the insulation layers can be covered by the layers of aluminium foil and glass paper and/or glass silk wound onto the base section.
- a method for producing a bottom insulation for a storage container for storing a cryogen comprises the following steps: a) providing a support structure, and b) arranging a plurality of ring-segment-shaped insulation elements next to one another on the support structure in order to form the bottom insulation.
- the support structure is placed on a base mold.
- the base mold has a curved geometry that corresponds to the geometry of the base sections of the inner container.
- the base mold can also be referred to as a dummy base.
- the base insulation is prefabricated on the base mold. As soon as all components of the base insulation have been assembled, it is lifted off the base mold and attached to the storage container. Then, as previously mentioned, a large number of alternating layers of aluminum foil and glass paper and/or glass silk are wound onto the base section.
- a plurality of insulation layers arranged one above the other are formed, each of which is composed of a plurality of insulation elements, wherein the insulation elements of the different insulation layers are arranged circumferentially offset from one another.
- the number of insulation layers arranged one above the other is arbitrary.
- the insulation elements are arranged in such a way that the abutting edges of the insulation elements of two insulation layers arranged directly on top of each other are arranged in such a way that the abutting edges do not overlap each other.
- step b) the insulation elements are folded over an edge of the support frame, so that the insulation layers each have a first section arranged on the support frame and a second section folded over the edge.
- the second section After the second section has been folded over, it is cut to size so that it has a tubular or hollow-cylindrical geometry.
- the second sections of insulation layers arranged one above the other are preferably cut to size so that they form several steps, thus resulting in a step-like geometry as mentioned above on the second sections.
- the second sections can be wrapped in a non-metallic material layer, for example in glass paper and/or glass silk.
- Fig. 1 shows a schematic sectional view of an embodiment of a storage container
- Fig. 2 shows the detailed view II according to Fig. 1;
- Fig. 3 shows a schematic plan view of an embodiment of a bottom insulation for the storage tank according to Fig. 1;
- Fig. 4 shows a schematic sectional view of the floor insulation according to the section line IV-IV of Fig. 3;
- Fig. 5 shows a schematic plan view of an embodiment of an insulation element for the floor insulation according to Fig. 3;
- Fig. 6 shows a schematic sectional view of the insulation element according to the section line VI-VI of Fig. 5;
- Fig. 7 shows a schematic block diagram of an embodiment of a method for producing the floor insulation according to Fig. 3;
- Fig. 8 shows a schematic view of the bottom insulation of Figs. 3 and 4 applied to a bottom section of the inner container
- Fig. 1 shows a schematic sectional view of an embodiment of a storage container 1.
- Fig. 2 shows the detailed view II according to Fig. 1.
- the storage container 1 can also be referred to as a storage tank.
- cryogenic fluids or liquids, or cryogens for short in addition to the previously mentioned hydrogen H2
- the storage container 1 can be a transport container.
- liquid hydrogen H2 can be transported with the storage container 1.
- the storage container 1 can be part of a vehicle, in particular a watercraft. In this case, the storage container 1 is suitable for mobile applications. However, the storage container 1 can also be used stationary, for example in building technology.
- the storage container 1 is preferably constructed rotationally symmetrically to a symmetry or central axis 2.
- the central axis 2 is oriented perpendicular to a direction of gravity g.
- the storage container 1 comprises a first container or inner container 3, which is also constructed rotationally symmetrically to the central axis 2.
- the inner container 3 comprises a tubular or cylindrical base section 4, which is also constructed rotationally symmetrically to the central axis 2.
- the base section 4 can have a circular or approximately circular geometry in cross section.
- the base section 4 is closed on both sides at the front with the aid of a cover section or base section 5, 6.
- the base sections 5, 6 are curved.
- a first base section 5 and a second base section 6 are curved in opposite directions, so that the base sections 5, 6 are curved outwards with respect to the base section 4.
- the inner container 3 is fluid-tight, in particular gas-tight.
- the inner container 3 can be made of stainless steel.
- the liquid hydrogen H2 is contained in the inner container 3. As long as the hydrogen H2 is in the two-phase region, a gas zone 7 with vaporized hydrogen, H2, and a liquid zone 8 with liquid hydrogen H2 can be provided in the inner container 3. After being filled into the inner container 3, the hydrogen H2 therefore has two phases with different states of aggregation, namely liquid and gaseous. This means that there is a phase boundary 9 in the inner container 3 between the liquid hydrogen H2 and the gaseous hydrogen H2.
- the inner container 3 is arranged completely within a second container or outer container 10.
- the storage container 1 is thus double-walled.
- the outer container 10 is also constructed rotationally symmetrically to the central axis 2.
- the outer container 10, like the inner container 3, comprises a tubular or cylindrical base section 11 which is constructed rotationally symmetrically to the central axis 2.
- the base section 11 can have a circular or almost circular geometry in cross section.
- the base section 11 is closed at the front by a cover section or bottom section 12, 13.
- a first bottom section 12 and a second bottom section 13 are provided.
- the bottom sections 12, 13 are curved in opposite directions, so that the bottom sections 12, 13 are curved outwards with respect to the base section 11.
- the outer container 10 is fluid-tight, in particular gas-tight.
- the outer container 10 can also be made of stainless steel.
- a gap 14 is provided that completely surrounds or envelops the inner container 3.
- the gap 14 is subjected to a vacuum.
- a vacuum is to be understood in particular as a pressure of less than 300 mbar, preferably less than 10 -3 mbar, more preferably less than 10 -5 mbar.
- the storage container 1 is thus vacuum-insulated or vacuum-insulated.
- the fact that the gap 14 completely "envelops” or “envelops" the inner container 3 means in the present case that the gap 14 runs completely around the base section 4 on the one hand and is also provided between the two first base sections 5, 12 and between the two second base sections 6, 13.
- a thermal insulation layer 15 (Fig.
- the insulation layer 15 encloses both the base section 4 and the bottom sections 5, 6 of the inner container 3.
- the insulation layer 15 serves for thermal insulation.
- the insulation layer 15 is multi-layered. This means that the insulation layer 15 comprises a large number of layers or plies.
- the insulation layer 15 can therefore also be referred to as a multi-layer insulation layer or a multi-layer thermal insulation layer.
- the insulation layer 15 is a so-called multilayer insulation (MLI).
- the insulation layer 15 comprises several alternating layers or plies of metallic foil (metal foil or metal-coated foil) and non-metallic material layer, for example perforated and/or embossed aluminum foil 16 as a reflector and glass paper and/or glass silk 17 as a spacer between adjacent aluminum foils 16.
- metallic foil metal foil or metal-coated foil
- non-metallic material layer for example perforated and/or embossed aluminum foil 16 as a reflector and glass paper and/or glass silk 17 as a spacer between adjacent aluminum foils 16.
- the glass paper and/or the glass silk 17 acts as a spacer between two adjacent aluminum foils 16, whereby the insulation layer 15 can be subjected to the vacuum prevailing in the gap 14.
- the insulation layer 15 only partially fills the gap 14.
- the insulation layer 15 can also completely fill the gap 14.
- the insulation layer 15 is located on the outside of the inner container 3.
- a gap 18 that completely envelops or envelops the insulation layer 15 can be provided between the insulation layer 15 and the outer container 10.
- the gap 18 is in particular part of the gap 14.
- the gap 18 can, for example, have a gap width of 100 mm.
- the gap 18 can be partially or completely filled with rock wool, glass wool or another suitable insulating material attached to the inside of the outer container 10.
- the layers of, for example, aluminum foil 16 and the layers of, for example, glass paper and/or glass silk 17 are alternately applied to the inner container 3, in particular to the base section 4 of the inner container 3.
- the production of the insulation layer 15 in the area of the base sections 5, 6 is explained below.
- Fig. 3 shows a schematic plan view of an embodiment of a floor insulation 19 that can be attached to the floor sections 5, 6.
- Fig. 4 shows a schematic sectional view of the floor insulation 19 according to the section line IV-IV of Fig. 3.
- the floor insulation 19 is part of the insulation layer 15.
- the floor insulation 19 is assigned a symmetry or central axis 20, to which the floor insulation 19 can be constructed rotationally symmetrically.
- the floor insulation 19 is assigned an axial direction A, which can coincide with the central axis 20 or be arranged parallel to it.
- a radial direction R of the floor insulation 19 is oriented perpendicular to the central axis 20 and away from it.
- a circumferential direction U is oriented around the central axis 20.
- the circumferential direction U can be oriented counterclockwise.
- the circumferential direction U can also be oriented clockwise.
- a base mold 21 is provided for producing the base insulation 19.
- the base mold 21 has a curved front side 22 which is oriented upwards in the orientation of Fig. 4.
- the front side 22 corresponds in terms of its geometry or shape to a geometry or shape of the first base section 5.
- the base mold 21 can also be referred to as a dummy base.
- the front side 22 can be curved in the shape of a spherical cap.
- a "spherical cap" is to be understood as a section of a sphere or a section of a sphere.
- a support frame 23 is placed on the front side 22 of the floor form 21.
- the support frame 23 has a curved geometry or shape like the front side 22 or like the first floor section 5.
- the support frame 23 can be designed in the form of a grid or struts.
- the support frame 23 is made of expanded metal.
- the support frame 23 has a central opening 24.
- a central nozzle (not shown) can be passed through the central opening 24, with the help of which the Inner container 3 can be suspended from the outer container 10.
- the opening 24 can be constructed rotationally symmetrically to the central axis 20.
- the support frame 23 is connected, for example welded, to a ring 25 running around the central axis 20.
- the ring 25 can be guided over a bottom weld seam provided between the first bottom section 5 and the base section 4 in order to connect the support frame 23 together with the ring 25 to the inner container 3.
- the ring 25 is placed below the support frame 23.
- the ring 25 can be made from a perforated sheet, for example.
- a plurality of connectors 26, 27 are attached to the ring 25, of which only two are provided with a reference number in Fig. 4.
- the number of connectors 26, 27 is arbitrary.
- the connectors 26, 27 are preferably arranged evenly spaced from one another around the central axis 20.
- the connectors 26, 27 can be welded to the base section 4. Suitable connection points or welding points can be provided on the base section 4 for this purpose.
- the connectors 26, 27 can be band-shaped or strip-shaped. For example, sheet metal strips can be used as connectors 26, 27.
- the connectors 26, 27 can also serve to connect the support frame 23 to the ring 25. This means in particular that a gap (not shown in Fig. 3) can be provided between the support frame 23 and the ring 25, which is bridged or spanned along the axial direction A by the connectors 26, 27. The support frame 23 therefore does not have to be connected directly to the ring 25.
- a plurality of insulation elements or insulation elements 30, 31 are placed on the support frame 23 in several insulation layers or insulation layers 28, 29, of which only two per insulation layer 28, 29 are provided with a reference number in Fig. 3.
- a first insulation layer 28 lies on the support frame 23.
- a second insulation layer 29 lies on the first insulation layer 28, so that the first insulation layer 28 is arranged between the support frame 23 and the second insulation layer 29.
- the number of insulation layers 28, 29 is arbitrary. For example, three, four, five or more than five insulation layers 28, 29 can be provided. However, at least two insulation layers 28, 29 are provided.
- Fig. 5 shows a schematic plan view of an embodiment of an insulating element 30 as mentioned above.
- Fig. 6 shows a schematic sectional view of the insulating element 30 according to the section line VI-VI of Fig. 5. In the following, reference is made simultaneously to Figs. 5 and 6.
- the insulation element 30 is ring-segment-shaped or cake-shaped and comprises a curved inner edge 32, an outer edge 33 and two side edges or abutting edges 34, 35.
- the abutting edges 34, 35 can also be referred to as cut edges.
- the insulation elements 30, 31 are wedge-shaped or ring-segment-shaped.
- a "ring segment” is understood here to mean a section of a ring. Arranged next to one another, several insulation elements 30, 31 accordingly form a ring, in particular in the form of the respective insulation layer 28, 29.
- the abutting edges 34, 35 are oriented at an angle to one another.
- the inner edge 32 forms a cylinder section.
- the inner edge 32 faces the central axis 20.
- the outer edge 33 faces away from the central axis 20.
- the insulation element 30 can also be referred to as an insulation package or pie piece package.
- the insulation element 30 can also be referred to as an MLI element or MLI package.
- the insulation element 30 is made up of a plurality of alternating layers of reflector layer and spacer layer, generally metallic foil (metal foil or metal-coated foil) and non-metallic material layer, for example aluminum foil 16 and glass paper and/or glass silk 17. For example, ten to fifteen layers are provided.
- the abutting edges 34, 35 are wrapped with glass paper and/or glass silk 17.
- glass paper and/or glass silk 17 other materials can also be used to wrap the abutting edges 34, 35. For example, any fabric, scrim, fleece or the like can be used. Now returning to Fig.
- the insulation elements 30, 31 are placed next to one another on the support frame 23 to form the first insulation layer 28, viewed along the circumferential direction U.
- the glass paper and/or glass silk 17 folded over the abutting edges 34, 35 of the insulation elements 30, 31 also prevents the aluminum foils 16 of adjacent insulation elements 30, 31 from coming into contact with one another.
- the insulation elements 30, 31 When they are placed on the support frame 23, the insulation elements 30, 31 are folded down around an edge 36 of the support frame 23, so that the first insulation layer 28 has a first section 37, which rests on the top of the support frame 23, and a second section 38, which rests laterally on the support frame 23 and/or on the ring 25.
- the second section 38 is tubular or cylindrical.
- the second section 38 can cover the ring 25 completely or partially.
- the first insulation layer 28, like the support frame 23 has an opening 39 through which the previously mentioned central connector can be passed.
- the inner edges 32 of all insulation elements 30, 31 of the first insulation layer 28 form the opening 39.
- the second section 38 of the first insulation layer 28, which overhangs the side of the support frame 23, is fixed using an annular retaining plate 40.
- the retaining plate 40 runs completely around the central axis 20 and at least partially covers the second section 38.
- the retaining plate 40 is optional, however.
- the second insulation layer 29 is then produced.
- a large number of insulation elements 30, 31 are placed on the first insulation layer 28.
- the insulation elements 30, 31 of the second insulation layer 29 are placed such that the abutting edges 34, 35 of the insulation elements 30, 31 of the first insulation layer 28, viewed along the circumferential direction U, are offset from the abutting edges 34, 35 of the insulation elements 30, 31 of the second insulation layer 29, so that no continuous abutment is created in the floor insulation 19.
- the abutting edges 34, 35 of the two insulation layers 28, 29, viewed along the axial direction A are not placed one above the other.
- the insulation elements 30, 31 of the second insulation layer 29 are preferably placed such that their abutting edges 34, 35 are located in the middle between the abutting edges 34, 35 of the insulation elements 30, 31 of the first insulation layer 28.
- the insulation elements 30, 31 of the second insulation layer 29 are arranged such that their abutting edges 34, 35 are placed in the middle between the abutting edges 34, 35 of the insulation elements 30, 31 of the first insulation layer 28.
- the insulation elements 30, 31 are placed horizontally on the support frame 23, which in turn lies on the base form 21, which has suitable recesses.
- the insulation elements 30, 31 of the second insulation layer 29 are folded downwards at the side so that the second insulation layer 29 also has a first section 41 that rests on the first section 37 of the first insulation layer 28 and a second section 42 that rests on the second section 38 of the first insulation layer 28.
- the second section 42 of the second insulation layer 29 does not completely cover the second section 38 of the first insulation layer 28, so that a stepped geometry results.
- the second insulation layer 29, like the support frame 23, has an opening 43 through which the previously mentioned central support can be passed.
- the inner edges 32 of all insulation elements 30, 31 of the second insulation layer 29 form the opening 43.
- the second section 42 of the second insulation layer 29, which overhangs laterally over the first insulation layer 28, is fixed using an annular retaining plate 44.
- the retaining plate 44 runs completely around the central axis 20 and at least partially covers the second section 42.
- the retaining plate 44 is optional, however.
- the second sections 38, 42 can be cut to size.
- the second sections 38, 42 can in particular be cut to size and wrapped with glass paper and/or glass silk 17.
- a centrally vertical ring 25 which is preferably made of a thin sheet and/or a perforated sheet, as described above.
- the insulation elements 30, 31 of the insulation layers 28, 29 are cut so that the second sections 38, 42 form one or preferably two steps.
- the resulting cut edges are again wrapped with glass paper and/or glass silk 17.
- a third to nth insulation layer can be produced.
- the number of insulation layers 28, 29 is arbitrary. In particular, however, at least two insulation layers 28, 29 are provided.
- a retaining plate 45 for example an aluminum sheet, is placed on an uppermost insulation layer, in this case the second insulation layer 29.
- the retaining plate 45 has a central opening 46 through which the previously mentioned central support can be passed.
- the openings 24, 39, 43, 46 together form an opening 47 that breaks through the center of the floor insulation 19.
- the retaining plate 45, the insulation layers 28, 29 and the supporting structure 23 are fixed to one another using several seams 48, 49, in other words they are connected to one another, in particular sewn together.
- a stainless steel wire can be used as the material for the seams 48, 49.
- the seams 48, 49 can have any geometry. As shown in Fig. 3, the seams 48, 49 can have a circular geometry, for example. However, the seams 48, 49 can run anywhere along the radial direction R and/or the circumferential direction U.
- the seams 48, 49 can also be designed in a zigzag shape, for example.
- the floor insulation 19 is now finished and represents a self-supporting assembly that can be lifted off the floor form 21.
- a traverse can fix two high-strength wires that are connected to the support frame 23 in a tensile manner through the insulation layers 28, 29 with the help of a stop.
- the wires are removed through the openings 24, 39, 43, 46 or through the opening 47, so that the MLI properties of the insulation layers 28, 29 are only slightly disturbed. As shown in Fig.
- the ring 25 is guided over a respective bottom weld seam 51 provided between the bottom sections 5, 6 and the base section 4.
- the connectors 26, 27 attached to the ring 25 are then connected, in particular welded, to the base section 4.
- Alternating layers of aluminum foil 16 and glass paper and/or glass silk 17 are then wound onto the base section 4, wherein the stepped second sections 38, 42 of the insulation layers 28, 29 can also be wound in.
- the bottom insulation 19 then forms, together with the layers of aluminum foil 16 and glass paper and/or glass silk 17 wound onto the base section 4, the insulation layer 15 that completely envelops the inner container 3.
- the insulation of the floor sections 5, 6 is thus carried out using the cake-shaped insulation elements 30, 31 made of typically ten to fifteen layers of aluminum foil 16 and glass paper and/or glass silk 17, with their abutting edges 34, 35 being surrounded by glass paper and/or glass silk 17.
- the shape of the insulation elements 30, 31 is selected such that, on the one hand, they protrude beyond the floor section 5, 6 in the radial direction R and, on the other hand, are mounted with a butt joint to one another with no gap or with a gap in the millimeter range in order to form the first insulation layer 28.
- a circumference of the ring 25 is matched to an actual circumference of the inner container 3, so that during assembly the ring 25 can be pulled over the bottom weld seam provided between the respective bottom section 5, 6 and the base section 4.
- the support frame 23 is mechanically connected to the ring 25 in a tensile manner, for example via protruding sheet metal strips, for example in the form of the connectors 26, 27. These sheet metal strips are welded to suitable pads 50 of the inner container 3, so that the support frame 23 and the ring 25 are mechanically fixed to the inner container 3.
- the support frame 23 is also welded in the area of the central support onto suitable pads (not shown in Fig. 8) which are provided on the respective base section 5, 6.
- suitable pads not shown in Fig. 8
- the parallelism of the cutting edges of the second sections 38, 42 with a circumference of the base section 4 is ensured by means of a circumferential marking on the base section 4.
- a width of a gap at the second sections 38, 42 viewed along the axial direction A is again between zero and a few millimeters.
- the working time for providing the bottom sections of the inner container 3 with a bottom insulation is significantly reduced by the pre-assembled bottom insulation compared to a procedure in which the layers of aluminum foil 16 and glass paper and/or glass silk 17 are laid individually on the inner container.
- the winding of the base section 4 can be carried out with a reduced crew in at least half the time.
- the number of layers of aluminum foil 16 and glass paper and/or glass silk 17 in the area of the floor sections 5, 6 no longer necessarily has to match the number of layers of aluminum foil 16 and glass paper and/or glass silk 17 in the area of the base section 4, so that the number of layers can be optimized independently of one another.
- Fig. 7 shows a schematic block diagram of an embodiment of a method for producing the floor insulation 19.
- the method comprises a step S1 of providing the support frame 23.
- the provision can comprise producing the support frame 23.
- a step S2 a plurality of the ring-segment-shaped insulation elements 30, 31 are arranged next to one another on the support frame 23 in order to form the floor insulation 19 or a plurality of insulation layers 28, 29.
- a plurality of insulation layers 28, 29 arranged one above the other are formed, each of which is composed of a plurality of insulation elements 30, 31.
- the insulation elements 30, 31 of the different insulation layers 28, 29 are arranged offset from one another around the circumference.
- the abutting edges 34, 35 of the insulation elements 30, 31 of insulation layers 28, 29 lying one above the other are thus placed offset from one another when viewed along the circumferential direction U.
- step S2 the insulation elements 30, 31 are folded over the edge 36 of the support frame 23, so that the insulation layers 28, 29 each have the first section 37, 41 arranged on the support frame 23 and the second section 38, 42 folded over the edge 36.
- the second sections 38, 42 can be cut in a suitable manner so that a stepped geometry results on the second sections 38, 42.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Packages (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP23020018 | 2023-01-16 | ||
| PCT/EP2024/025025 WO2024153460A1 (de) | 2023-01-16 | 2024-01-15 | Speicherbehälter und verfahren |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4652397A1 true EP4652397A1 (de) | 2025-11-26 |
Family
ID=84982104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP24700170.4A Pending EP4652397A1 (de) | 2023-01-16 | 2024-01-15 | Speicherbehälter und verfahren |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP4652397A1 (de) |
| JP (1) | JP2026502187A (de) |
| CN (1) | CN120418577A (de) |
| WO (1) | WO2024153460A1 (de) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3540615A (en) | 1969-01-30 | 1970-11-17 | T O Paine | Panelized high-performance multilayer insulation |
| US6521077B1 (en) * | 1999-03-25 | 2003-02-18 | Lydall, Inc. | Method for insulating a cryogenic container |
| WO2014127840A1 (de) * | 2013-02-25 | 2014-08-28 | Olaf Berghoff | Tank für kryogene fluide |
| PL3452749T3 (pl) * | 2016-05-04 | 2022-05-02 | Linde Gmbh | Zbiornik transportowy |
| DE102021001008A1 (de) * | 2020-03-06 | 2021-09-09 | Linde Gmbh | Speicherbehälter |
-
2024
- 2024-01-15 CN CN202480005984.4A patent/CN120418577A/zh active Pending
- 2024-01-15 EP EP24700170.4A patent/EP4652397A1/de active Pending
- 2024-01-15 WO PCT/EP2024/025025 patent/WO2024153460A1/de not_active Ceased
- 2024-01-15 JP JP2025537231A patent/JP2026502187A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2026502187A (ja) | 2026-01-21 |
| WO2024153460A1 (de) | 2024-07-25 |
| CN120418577A (zh) | 2025-08-01 |
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