DE102015008428A1 - Tank and method of manufacturing a tank - Google Patents

Tank and method of manufacturing a tank

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Publication number
DE102015008428A1
DE102015008428A1 DE102015008428.3A DE102015008428A DE102015008428A1 DE 102015008428 A1 DE102015008428 A1 DE 102015008428A1 DE 102015008428 A DE102015008428 A DE 102015008428A DE 102015008428 A1 DE102015008428 A1 DE 102015008428A1
Authority
DE
Germany
Prior art keywords
inner container
thermal barrier
wall
thermal
thermal insulation
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
Application number
DE102015008428.3A
Other languages
German (de)
Inventor
Marian Krol
Josef Irl
Till Waas
Norman Bruckhaus
Jörg Lützow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LINDNER GROUP KG
Linde AG
Original Assignee
LINDNER GROUP KG
Linde AG
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 LINDNER GROUP KG, Linde AG filed Critical LINDNER GROUP KG
Priority to DE102015008428.3A priority Critical patent/DE102015008428A1/en
Publication of DE102015008428A1 publication Critical patent/DE102015008428A1/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C3/00Vessels not under pressure
    • F17C3/02Vessels not under pressure with provision for thermal insulation
    • F17C3/022Land-based bulk storage containers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00Details of vessels or of the filling or discharging of vessels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/03Thermal insulations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/03Thermal insulations
    • F17C2203/0304Thermal insulations by solid means
    • F17C2203/0329Foam
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/03Thermal insulations
    • F17C2203/0304Thermal insulations by solid means
    • F17C2203/0329Foam
    • F17C2203/0333Polyurethane
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/03Thermal insulations
    • F17C2203/0304Thermal insulations by solid means
    • F17C2203/0358Thermal insulations by solid means in form of panels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/03Thermal insulations
    • F17C2203/0375Thermal insulations by gas
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/03Thermal insulations
    • F17C2203/0375Thermal insulations by gas
    • F17C2203/0379Inert
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602Wall structures; Special features thereof
    • F17C2203/0612Wall structures
    • F17C2203/0626Multiple walls
    • F17C2203/0629Two walls
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634Materials for walls or layers thereof
    • F17C2203/0636Metals
    • F17C2203/0639Steels
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634Materials for walls or layers thereof
    • F17C2203/0636Metals
    • F17C2203/0646Aluminium
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634Materials for walls or layers thereof
    • F17C2203/0658Synthetics
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00Vessel construction, in particular walls or details thereof
    • F17C2203/06Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634Materials for walls or layers thereof
    • F17C2203/0678Concrete
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00Vessel construction, in particular methods of manufacturing
    • F17C2209/21Shaping processes
    • F17C2209/2109Moulding
    • F17C2209/2118Moulding by injection
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/01Pure fluids
    • F17C2221/011Oxygen
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/01Pure fluids
    • F17C2221/014Nitrogen
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/01Pure fluids
    • F17C2221/016Noble gases (Ar, Kr, Xe)
    • F17C2221/017Helium
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00Handled fluid, in particular type of fluid
    • F17C2221/03Mixtures
    • F17C2221/032Hydrocarbons
    • F17C2221/033Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146Two-phase
    • F17C2223/0153Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2260/00Purposes of gas storage and gas handling
    • F17C2260/03Dealing with losses
    • F17C2260/031Dealing with losses due to heat transfer
    • F17C2260/033Dealing with losses due to heat transfer by enhancing insulation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17CVESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00Applications
    • F17C2270/01Applications for fluid transport or storage
    • F17C2270/0134Applications for fluid transport or storage placed above the ground

Abstract

A tank (1) for storing cryogenic gases (2) with an inner container (9), an outer container (4) and between the inner container (9) and the outer container (4) arranged heat-insulating wall (16), wherein the heat-insulating wall (16 ) is self-supporting trained.

Description

  • The invention relates to a tank for storing cryogenic gases and a method for producing such a tank.
  • For storing cryogenic gases, such as liquefied natural gas, dome-shaped flat-bottomed tanks are known, which have an inner container, an outer container and disposed between the inner container and the outer container thermal barrier coating. The thermal barrier coating may for example be made of perlite poured between the inner vessel and the outer vessel.
  • The US 3,401,910 A describes a tank for storing cryogenic gases. Between an inner container and an outer container of the tank constructed of individual thermal insulation elements thermal insulation layer is provided. The thermal insulation elements are prestressed. The thermal barrier coating is thereby supported on the inner container and on the outer container. To prevent collapse of the inner container, this is supported with support struts.
  • Against this background, the object of the present invention is to provide an improved tank for storing cryogenic gases.
  • Accordingly, a tank for storing cryogenic gases is proposed. The tank comprises an inner container, an outer container and a heat-insulating wall arranged between the inner container and the outer container, the heat-insulating wall being designed to be self-supporting.
  • Due to the fact that the heat-insulating wall is self-supporting, no loads, in particular no vertical and / or horizontal loads, are applied to the inner container. As a result, the inner container can be listed with a smaller wall thickness. The wall thickness of the inner container can be 5 to 50 millimeters. The thermal insulation wall is supported neither on the inner container nor on the outer container. As a result, a mechanical load on the inner container is prevented. The risk of collapse of the inner container is thereby reduced.
  • The thermal barrier can also be referred to as insulation wall. The inner container and the outer container are circular cylindrical and arranged concentrically to one another. The inner container is positioned inside the outer container. The inner container and the outer container are spaced from each other. In this room, the thermal barrier wall is arranged. The thermal barrier wall preferably has thermal insulation properties. The inner container and / or the outer container preferably each have a circular bottom and a cylindrical shell. The heat-insulating wall preferably has a circular-cylindrical geometry and completely circumscribes the inner container. The gas in the inner container is also referred to below as the product gas. The gas can pass from the liquefied state of matter to the gaseous state during storage by heating. The gas is then called a boil-off gas. Cryogenic gases can also be referred to as liquefied cryogenic gases. Examples of such cryogenic gases are liquefied natural gas, liquid ethene or ethylene (boiling point 169.43 K = -103.72 ° C), liquid ethane (boiling point 90.15 K = -183 ° C), liquid helium (boiling point 4.22 K) = -268.93 ° C), liquid hydrogen (boiling point 20.27 K = -252.88 ° C), liquid nitrogen (boiling point 77.35 K = -195.80 ° C) or liquid oxygen (boiling point 90.18 K = -182.97 ° C).
  • According to one embodiment, the thermal barrier wall is formed from interconnected block-shaped thermal insulation elements which are in particular positively and / or non-positively connected to each other.
  • The thermal insulation elements can also be referred to as insulation elements. Form-fitting connections are created by the interaction of at least two connection partners. As a result, the connection partners can not solve each other without or with interrupted power transmission. The thermal insulation elements can be positively connected to each other by means of a tongue and groove connection. Additionally or optionally to the tongue and groove connection, the thermal insulation elements can be glued together. In particular, the thermal insulation elements are material, force and / or positively connected.
  • Force-fit connections require a normal force on the surfaces to be joined together. Their mutual displacement is prevented, as long as caused by the static friction counterforce is not exceeded. Cohesive connections are all compounds in which the connection partners are held together by atomic or molecular forces. They are at the same time non-detachable connections, which can only be separated by destruction of the connecting means. Examples of cohesive connections are adhesive or welded joints. Preferably, the thermal insulation elements are releasably connected to each other. The thermal insulation elements can be stacked on each other to manufacture the thermal barrier wall. Preferably, the Heat insulation elements made of an open-pore or closed-cell plastic material, in particular a plastic foam. For example, the thermal insulation elements may be made of a rigid polyurethane foam, a polystyrene foam, a polyisocyanate foam or the like.
  • According to a further embodiment, the thermal barrier wall is made vapor-tight and / or gas-tight.
  • In particular, the thermal barrier wall has a vapor and / or gas barrier, in particular a metal foil or a coating. This prevents, for example, that vaporized boil-off gas escapes. Furthermore, an inerting of the tank is accelerated because the thermal barrier wall can not be saturated with product gas. The vapor barrier may be, for example, an aluminum foil or a paint. The vapor barrier may be provided on the inside and / or outside of the thermal barrier wall. In particular, the block-shaped thermal insulation elements of the thermal insulation wall may already have the vapor and / or gas barrier, which may be applied to the prefabricated thermal insulation elements on the inside or outside, in particular adhesively bonded. Alternatively, a gas and / or vapor permeable material is applicable for the thermal barrier wall.
  • According to a further embodiment, a gas-filled gap is provided between the heat-insulating wall and the outer container.
  • In other words, this means that the thermal barrier wall may be spaced from the outer vessel. The gap can also be referred to as free gas space.
  • The gap preferably completely circumscribes the thermal barrier wall. The gap is preferably filled with gaseous nitrogen or with the vaporized product gas.
  • According to a further embodiment, a cast thermal barrier coating is provided between the thermal barrier wall and the inner vessel.
  • The thermal barrier coating may also be referred to as an insulating layer. The thermal barrier coating is poured in particular in sections in the vertical direction between the thermal barrier wall and the inner container. For this purpose, a first portion of the thermal insulation wall is first erected, then a first portion of the heat insulating layer according to its height introduced liquid and brought to cure, then a second, third to n-th section of the thermal barrier wall is constructed and a second, third to n-th section of the thermal barrier coating introduced liquid. Due to the partial casting of the thermal barrier coating, excessive heat generation during curing of the thermal barrier coating is prevented. The thermal barrier wall can serve as outer formwork for casting the thermal barrier coating. The inner formwork is then the inner container. Alternatively, a removable inner formwork can be provided, which is removed after the casting of the thermal barrier coating. The thermal barrier coating may be flexible after curing, in particular elastically deformable. Alternatively, the thermal barrier coating may be stiff after curing.
  • According to a further embodiment, the thermal barrier coating is made of a foamed, in particular closed-pore, plastic material.
  • For example, the thermal barrier coating may be made of a foamed polyurethane material.
  • According to a further embodiment, a convection barrier is arranged between the thermal barrier coating and the inner container.
  • The convection barrier prevents free convection of the vaporized product gas between the heat-insulating layer and the inner container, whereby condensation of the product gas is prevented on the outside of the inner container. The thermal insulation unit may have the convection barrier.
  • According to a further embodiment, the convection barrier is elastic and provided such that it follows a temperature-induced shrinkage or expansion movement of the inner container.
  • In particular, the convection barrier is compressible and stretchable. The convection barrier may for example be made of a mineral wool or an elastically deformable foamed plastic material.
  • According to a further embodiment, the convection barrier is connected to the thermal barrier coating and / or the inner container.
  • In particular, the thermal barrier coating can be cast on the convection barrier. Furthermore, the convection barrier can be connected to the heat-insulating layer in a material, force and / or form-fitting manner. The convection barrier, for example, glued to the thermal barrier coating and / or the inner container, hung in this or otherwise be connected with these. In particular, the convection barrier can be suspended on an upper side of the inner container and be rolled from there. Preferably, the convection is also connected to the inner container material, force, and / or positively connected. Alternatively, the convection barrier can not be connected to the inner container, but only abut against it.
  • According to a further embodiment, the convection barrier between the heat-insulating wall and the inner container is biased.
  • For example, the convection barrier is made of a compressed mineral wool. Due to the bias, the convection barrier follows temperature-induced dimensional changes of the inner container. The material used for the convection barrier, any material can be used, which can be pulled or pressed at low temperatures in a large Wegbereich and in this case has only a small spring constant.
  • According to a further embodiment, the inner container is designed as an upwardly open cup for receiving the cryogenic gases and the outer container as a shell surrounding the cup.
  • The cup takes up the liquefied product gas. The cup is open at the top so that evaporating product gas can escape from the cup. The inner container is preferably made of a steel material, in particular of a steel sheet. The inner container comprises a circular cylindrical shell and a bottom. The outer container preferably has a circular cylindrical shell, a bottom and a dome-shaped ceiling. The outer container may for example be made of a steel material or concrete. Alternatively, the concrete shell and dome-shaped ceiling can be made of steel. The outer container may on the inside a vapor barrier, a so-called liner. The liner may include metal plates or metal sheets applied on an inside of the outer container. With the help of the vapor barrier, the outer container becomes gas impermeable. The inner container is covered with a cover, in particular a circular lid, which is suspended from the dome-shaped ceiling of the outer container. Alternatively, the cup may also have a closed dome-shaped roof. On the cover heat insulation elements may be arranged, which are made for example of mineral wool.
  • Furthermore, a method for producing a tank for storing cryogenic gases is proposed. The method comprises the following steps: providing an inner container and an outer container; and arranging a heat-insulating wall between the inner container and the outer container, so that the heat-insulating wall is made self-supporting.
  • The thermal barrier wall is preferably constructed of individual thermal insulation elements in layers. The thermal insulation elements can be positively connected to each other, for example, and additionally or optionally glued together. The positive connection can be achieved by a tongue and groove system.
  • According to one embodiment, a thermal barrier coating is poured in during or after the placement of the thermal barrier wall between the thermal barrier wall and the inner vessel.
  • The thermal barrier coating is produced in situ during the manufacture of the tank. That is, the heat-insulating layer is cast in sections in the vertical direction between the heat-insulating wall and the inner container. Here, the thermal barrier wall serves as a formwork for the thermal barrier coating. The thermal barrier wall and the thermal barrier coating form a self-supporting thermal insulation unit or insulation unit. The thermal barrier coating can be made, for example, from a foamed polyurethane material. Due to the partial casting of the thermal barrier coating, an excessive heat load on the thermal barrier wall during curing of the thermal barrier coating is prevented.
  • According to a further embodiment, an elastically deformable convection barrier is arranged prior to pouring the thermal barrier coating between the thermal barrier wall and the inner vessel, wherein the thermal barrier coating is poured between the thermal barrier wall and the convection barrier. Alternatively, a removable formwork can be provided between the convection barrier and the thermal barrier wall, which is removed after pouring the thermal barrier coating. The convection barrier can be attached to the inner container with the use of such a removable formwork even after pouring the thermal barrier coating.
  • As a result, a permanent and reliable connection of the convection barrier is achieved with the thermal barrier wall. The convection barrier may be additionally or optionally attached to the inner container. In particular, the convection barrier is compressible and stretchable.
  • According to a further embodiment, a first portion of the thermal barrier wall is erected, and then a height of the first portion corresponding to a first portion of the Thermal insulation layer introduced liquid and cured, in which case a second, third to n-th section of the thermal insulation wall is then constructed and a second, third to n-th section of the thermal barrier coating is introduced and cured liquid.
  • Due to the partial casting of the thermal barrier coating, excessive heat generation during curing of the thermal barrier coating is prevented. n is an integer, where n = 1 to infinity.
  • Further possible implementations of the tank and / or the method also include combinations of features or embodiments described above or below with regard to the exemplary embodiments which are not explicitly mentioned. The person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the tank and / or the method.
  • Further advantageous embodiments and aspects of the tank and / or the method are the subject matter of the subclaims and the exemplary embodiments of the tank and / or the method described below. Furthermore, the tank and / or the method will be explained in more detail on the basis of preferred embodiments with reference to the enclosed figures.
  • 1 shows a schematic sectional view of an embodiment of a tank for storing cryogenic gases;
  • 2 shows an enlarged section II of the sectional view of the tank according to the 1 ;
  • 3 shows a schematic sectional view of the tank according to the section line III-III of 2 ; and
  • 4 shows a block diagram of an embodiment of a method for manufacturing the tank according to the 1 ,
  • In the figures, the same or functionally identical elements have been given the same reference numerals, unless stated otherwise.
  • The 1 shows a highly simplified schematic sectional view of a tank 1 for storing cryogenic or cryogenic liquefied gases 2 , An example of a liquefied gas 2 is liquefied natural gas or liquefied natural gas (LNG). Furthermore, the gas 2 Ethylene, ethane, nitrogen, oxygen, helium or the like. The gas 2 can also be referred to as product gas.
  • The Tank 1 has a plate-shaped concrete foundation 3 here in the form of a cast circular concrete slab. Furthermore, the tank includes 1 one on the concrete foundation 3 arranged outer container 4 , The outer container 4 can be made of a steel material or concrete. If the outer container 4 is made of concrete, inside this can be a vapor barrier, a so-called liner 5 , be provided. The liner 5 ensures a gas-tightness of the outer container 4 , The liner 5 may include a steel diaphragm, welded steel plates or clamped steel sheets. Is the outer container 4 Made of a steel material, can be applied to the liner 5 be waived.
  • The outer container 4 has a circular cylindrical outer container wall or jacket 6 , an outer container bottom 7 that is integral with the concrete foundation 3 may be formed, and an outwardly domed dome-shaped ceiling 8th on. For example, the outer container bottom 7 and the outer container wall or jacket 6 made of concrete and the dome-shaped ceiling 8th be made of steel. The outer container 4 can be in the form of an upwardly open cup with outer container bottom 7 and outer container wall or jacket 6 be educated. The outer container 4 is also referred to as outer tank or outer cup. The Tank 1 further includes one inside the outer container 4 arranged inner container 9 , The inner container 9 is made of a steel material. The inner container 9 is also configured in the form of a cup with a circular cylindrical inner container wall or coat 10 and an inner container bottom 11 , The inner container 9 is also referred to below as the inner tank or inner cup. The inner container 9 is inside the outer container 4 coaxially positioned with respect to the vertical axes.
  • The cup-shaped inner container 9 is with one from the ceiling 8th of the outer container 4 suspended cover 12 covered. The cover 12 is not fluid-tight with the inner container 9 connected so that so-called boil-off gas, that is gas 2 , which has gone from the liquid state of matter into the gaseous, from the cup-shaped inner container 9 can escape. The cover 12 is by means of metallic rods / struts 13 from the ceiling 8th suspended. The cover 12 is still up or to the outer container 4 with block-shaped thermal insulation elements, mats or sacks 14 thermally insulated. The thermal insulation elements 14 For example, they may be made of a foamed plastic material such as polyurethane, polystyrene or the like. Furthermore, the thermal insulation elements 14 be made of mineral wool such as slag, glass or rock wool.
  • Between the inner container bottom 11 of the inner container 9 and the concrete foundation 3 respectively. the outer container bottom 7 of the outer container 4 is a floor thermal insulation 15 intended. The floor thermal insulation 15 can be made of foam glass, for example. Foam glass can also be referred to as Foamglass or Cellular Glass. Furthermore, the floor thermal insulation 15 be constructed of individual block-shaped elements.
  • Between the inner container wall or jacket 10 and the outer container wall or jacket 6 is a thermal barrier wall 16 arranged. The thermal insulation wall 16 is self-supporting, that is, the thermal barrier wall 16 does not support itself on the outer container 4 still on the inner container 9 from. The weight of the thermal barrier wall 16 gets into the floor heat insulation 15 brought in. Between the thermal insulation wall 16 and the outer container 4 is a the thermal insulation wall 16 completely circulating free gas space or gap 17 intended. The gap 17 can with vaporized gas 2 or in an inner container 9 be filled with gaseous nitrogen with a closed lid. The floor thermal insulation 15 is a load-bearing insulating component, which is covered by a liquid-tight and gas-tight bottom liner or second bottom upwards. This second bottom can be made of cold-strength steel, aluminum compound layers, or other suitable materials.
  • The 2 shows an enlarged section of the tank 1 in accordance with point II of the 1 , The 3 shows a sectional view of the tank 1 according to section line III-III of 2 ,
  • As the 2 shows, indicates the floor thermal insulation 15 a circular cylindrical, towards the ceiling 8th extending encircling coat or wall 18 on. In an outer container shell made of concrete 9 can the coat 18 also known as thermal corner protection or thermal corner protection. The thermal insulation wall 16 does not support itself on the mantle 18 from. The inner container 9 can shrink due to temperature or expand. In the 2 is with the reference numeral 9a an expanded state and with the reference numeral 9b a shrunken state of the inner container 9 designated.
  • The thermal insulation wall 16 is made of interconnected block-shaped thermal insulation elements 19 educated. The thermal insulation elements 19 are connected with each other in terms of material, force and / or form fit. The thermal insulation elements 19 For example, they can be connected together by means of a tongue and groove connection. Alternatively or additionally, the thermal insulation elements 19 be glued together. The thermal insulation elements 19 are made of a foamed, especially closed-cell, plastic material. Alternatively, the thermal insulation elements 19 made of an open-pored plastic material. For example, the thermal insulation elements 19 be made of a rigid polyurethane foam, a polystyrene foam, a polyisocyanate foam or the like.
  • The thermal insulation wall 16 may have a vapor barrier. The vapor barrier can be on the inside and / or outside of the thermal insulation wall 16 be provided. The vapor barrier is required when the thermal insulation elements 19 are made of an open-pored plastic material. The vapor barrier may be, for example, an aluminum foil or a paint. The vapor barrier can be completed before the completion of the thermal barrier wall 16 on the individual thermal insulation elements 19 be applied. Alternatively, the vapor barrier after completion of the thermal barrier wall 16 to be applied to this.
  • Between the thermal insulation wall 16 and the inner container 9 is a cast thermal barrier coating 20 intended. The thermal barrier coating 20 is used in the production of the tank 1 poured in situ. The thermal insulation wall 16 is built up in sections in height direction and the thermal barrier coating 20 then poured in sections. For this purpose, first a first section of the thermal barrier wall 16 built, then a first section of the thermal barrier coating according to the first section in its height 20 introduced liquid and cured, then a second, third to n-th section of the thermal barrier wall 16 built and accordingly a second, third to nth section of the thermal barrier coating 20 introduced liquid. By the partial casting of the thermal barrier coating 20 is too high heat during curing of the thermal barrier coating 20 prevented. The thermal barrier coating 20 consists of a foamed, in particular a closed-pore foamed, plastic material. The thermal barrier coating 20 can be made of a polyurethane material. The thermal insulation wall 16 forms with the thermal barrier coating 20 a thermal insulation unit 21 , The thermal insulation unit 21 is self-supporting. The thermal insulation wall 16 serves as a formwork for casting the thermal barrier coating 20 ,
  • Between the thermal barrier coating 20 and the inner container 9 is a convection barrier 22 arranged. The convection barrier 22 prevents convection of vaporized gas 2 between the thermal barrier coating 20 and the inner container 9 , This will cause condensation of the vaporized gas 2 on the outside of the inner container 9 prevented. The convection barrier 22 prevents the flow of large quantities of vaporized gas past 2 on the inner container. The thermal insulation unit 21 can the convection lock 22 exhibit.
  • The convection barrier 22 is elastic and provided such that it is a temperature-induced shrinkage and / or expansion movement of the inner container 9 follows. The convection barrier 22 can with the thermal barrier coating 20 and / or the inner container 9 be connected. A compressed state of the convection barrier 22 is in the 2 and 3 represented by a solid line. An expanded or expanded state of the convection barrier 22 is in the 2 and 3 shown with a dashed line. The convection barrier 22 can be material, force and / or positive fit with the thermal barrier coating 20 and / or the inner container 9 be connected. For example, the convection lock 22 on the thermal barrier coating 20 and / or on the inner container 9 be hung or glued to these. The convection barrier 22 can be on a top edge of the inner container 9 be hung up and unrolled from there. It may be useful to simplify the installation, the convection lock 22 on the inner container wall or jacket 10 of the inner container 9 mechanically fasten. The convection barrier 22 this is done at an upper edge of the inner container 9 attached and then rolled down in tracks.
  • Also the sticking of the convection barrier 22 on the inner container 9 is a suitable method to fix this for assembly purposes, before then the thermal barrier coating 20 is introduced. The thermal barrier coating 20 can between the convection barrier 22 and the thermal barrier wall 16 be poured. As a result, a reliable and durable connection of the thermal barrier coating 20 with the convection barrier 22 reached. The convection barrier 22 can be between the thermal barrier wall 16 and the inner container 9 be biased. This is the convection lock 22 when building the tank 1 compressed. The of the compressed convection barrier 22 on the inner container 9 applied vertical and / or horizontal loads are extremely low. For example, the convection lock 22 be made of mineral wool. The convection barrier 22 can also be made of a foamed, elastically deformable plastic material.
  • The convection barrier 22 is compressible and expandable. This is followed by the convection barrier 22 the inner container 9 with temperature-related dimensional changes of the same. The convection barrier 22 can be coated with a laminating aluminum foil. With the help of the elastic convection barrier 22 may be a detachment of the thermal insulation unit 21 from the inner container 9 due to temperature-related dimensional variations of the same can be prevented. Due to the fact that the thermal insulation wall 16 and the thermal barrier coating 20 are made of a closed-cell plastic material, a rapid drying and inerting of the system can be realized.
  • The 4 shows a block diagram schematically a method of manufacturing such a tank 1 , The method comprises a step S1 of providing the inner container 9 and the outer container 4 on. The inner container 9 can serve as a cup to hold the cryogenic gas 2 and the outer container 4 may be formed as a jacket surrounding the cup.
  • In a step S2, the thermal barrier wall 16 between the inner container 9 and the outer container 4 arranged so that the thermal barrier wall 16 is self-supporting trained. More specifically, the thermal barrier wall 16 arranged so that they are not attached to the inner container 9 still on the outer container 4 supported. During or after placing the thermal barrier wall 16 can between these and the convection barrier 22 in a step S3, the thermal barrier coating 20 be poured. The thermal barrier coating 20 and the thermal barrier wall 16 form the self-supporting thermal insulation unit 21 ,
  • The convection barrier 22 can be at the top of the inner container 9 be hung. Subsequently, first a first section of the thermal barrier wall 16 built, then a first section of the thermal barrier coating according to the first section in its height 20 introduced liquid and cured, then a second, third to n-th section of the thermal barrier wall 16 built and accordingly a second, third to nth section of the thermal barrier coating 20 introduced liquid. By the partial casting of the thermal barrier coating 20 is too high heat during curing of the thermal barrier coating 20 prevented.
  • The thermal insulation wall 16 can, as explained above, be built in sections. Here are the thermal insulation elements 19 piled up or piled up and connected together. The thermal barrier coating 20 is partially between the at least partially constructed thermal barrier wall 16 and the inner container 9 cast. As a result, too much heat development in the curing of the material of the thermal barrier coating 20 prevented. The thermal insulation wall 16 serves as outer formwork for the thermal barrier coating 20 , In the production of the tank 1 can another formwork between the thermal barrier wall 16 and the inner container 9 be provided so that the thermal barrier coating 20 no direct contact with the inner container 9 Has.
  • Before pouring the thermal barrier coating 20 between the thermal barrier wall 16 and the inner container 9 becomes the elastically deformable convection barrier 22 between the inner container 9 and the thermal insulation wall 16 arranged. The thermal barrier coating 20 is then between the thermal barrier wall 16 and the convection barrier 22 cast. The convection barrier 22 serves as inner formwork. This will provide a reliable and lasting bond between the thermal barrier coating 20 and the convection barrier 22 produced.
  • Due to the fact that the thermal insulation wall 16 from each other material, force and / or positively connected heat insulation elements 19 can be made quickly and easily. Due to the self-supporting properties of the thermal insulation wall 16 No loads, in particular no vertical loads, on the inner container 9 applied, so that it can be performed accordingly with a smaller wall thickness. The inner container 9 can have a wall thickness of 5 to 50 millimeters. With the help of the elastic convection barrier 22 is a detachment of the thermal insulation unit 21 from the inner container 9 in a shrinkage of the inner container 9 and thus a radial displacement of the inner container shell 10 prevents inward, causing condensation of the vaporized gas 2 on the outside of the inner container 9 is prevented.
  • Although the present invention has been described with reference to embodiments, it is variously modifiable.
  • For example, on the convection lock 22 be waived. Furthermore, a two-sided pouring of the thermal barrier coating 20 between the thermal barrier wall 16 and the convection barrier 22 and between the convection barrier 22 and the inner container 9 respectively.
  • LIST OF REFERENCE NUMBERS
  • 1
    tank
    2
    gas
    3
    concrete foundation
    4
    outer container
    5
    Metal lining or liner
    6
    Outer container wall or jacket
    7
    Outer container base
    8th
    Outer container ceiling
    9
    inner container
    9a
    Inner vessel wall or jacket with minimal radial expansion
    9b
    Inner vessel wall or jacket in maximum radial extent
    10
    Inner container wall or jacket
    11
    Inside the container base
    12
    Inner container lid / cover
    13
    Rod or strut
    14
    thermal insulation element
    15
    floor insulation
    16
    heat insulating wall
    17
    Gap between thermal barrier wall and outer vessel wall or jacket
    18
    Wall or mantle of floor insulation
    19
    thermal insulation element
    20
    thermal barrier
    21
    thermal insulation unit
    22
    convection
    S1
    step
    S2
    step
    S3
    step
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • US 3401910 A [0003]

Claims (15)

  1. Tank ( 1 ) for storing cryogenic gases ( 2 ), with an inner container ( 9 ), an outer container ( 4 ) and one between the inner container ( 9 ) and the outer container ( 4 ) arranged thermal insulation wall ( 16 ), wherein the thermal barrier wall ( 16 ) is self-supporting trained.
  2. Tank according to claim 1, wherein the thermal barrier wall ( 16 ) of interconnected block-shaped thermal insulation elements ( 19 ) is formed, which are in particular positively and / or non-positively connected to each other.
  3. Tank according to claim 1 or 2, wherein the thermal barrier wall ( 16 ) is vapor-tight and / or gas-tight.
  4. Tank according to one of claims 1-3, wherein between the heat-insulating wall ( 16 ) and the outer container ( 4 ) a gas-filled gap ( 17 ) is provided.
  5. Tank according to one of claims 1-4, wherein between the heat-insulating wall ( 16 ) and the inner container ( 9 ) a cast thermal barrier coating ( 20 ) is provided.
  6. Tank according to claim 5, wherein the thermal barrier coating ( 20 ) is made of a foamed, especially closed-cell, plastic material.
  7. Tank according to claim 5 or 6, wherein between the thermal barrier coating ( 20 ) and the inner container ( 9 ) a convection barrier ( 22 ) is arranged.
  8. Tank according to claim 7, wherein the convection barrier ( 22 ) is elastic and is provided such that it causes a temperature-induced shrinkage and / or expansion movement of the inner container ( 9 ) follows.
  9. Tank according to claim 7 or 8, wherein the convection barrier ( 22 ) with the thermal barrier coating ( 20 ) and / or the inner container ( 9 ) connected is.
  10. Tank according to one of claims 7-9, wherein the convection barrier ( 22 ) between the thermal insulation wall ( 16 ) and the inner container ( 9 ) is biased.
  11. Tank according to one of claims 1-10, wherein the inner container ( 9 ) as an upwardly open cup for receiving the cryogenic gases ( 2 ) and the outer container ( 4 ) is formed as a shell surrounding the cup.
  12. Method for producing a tank ( 1 ) for storing cryogenic gases ( 2 ), comprising the following steps: providing (S1) an inner container ( 9 ) and an outer container ( 4 ); and arranging (S2) a thermal barrier wall ( 16 ) between the inner container ( 9 ) and the outer container ( 4 ), so that the thermal insulation wall ( 16 ) is formed self-supporting.
  13. A method according to claim 12, wherein during or after arranging (S2) the thermal barrier wall ( 16 ) between the thermal insulation wall ( 16 ) and the inner container ( 9 ) a thermal barrier coating ( 20 ) is poured.
  14. A method according to claim 13, wherein prior to pouring (S3) the thermal barrier coating (S3) 20 ) between the thermal insulation wall ( 16 ) and the inner container ( 9 ) an elastically deformable convection barrier ( 22 ), wherein the thermal barrier coating ( 20 ) between the thermal insulation wall ( 16 ) and the convection barrier ( 22 ) is poured.
  15. The method of claim 14, wherein a first portion of the thermal barrier wall ( 16 ) and then, according to the first section, a first section of the thermal barrier coating (in height) ( 20 ) is introduced and cured liquid, wherein then a second, third to n-th section of the thermal insulation wall ( 16 ) and, accordingly, a second, third to nth section of the thermal barrier coating ( 20 ) is introduced liquid and cured.
DE102015008428.3A 2015-06-30 2015-06-30 Tank and method of manufacturing a tank Pending DE102015008428A1 (en)

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Application Number Priority Date Filing Date Title
DE102015008428.3A DE102015008428A1 (en) 2015-06-30 2015-06-30 Tank and method of manufacturing a tank

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE102015008428.3A DE102015008428A1 (en) 2015-06-30 2015-06-30 Tank and method of manufacturing a tank
EP16733289.9A EP3317577A1 (en) 2015-06-30 2016-06-15 Tank and method for producing a tank
RU2017143843A RU2720345C2 (en) 2015-06-30 2016-06-15 Reservoir and method of reservoir manufacturing
AU2016288513A AU2016288513A1 (en) 2015-06-30 2016-06-15 Tank and method for producing a tank
CN201680038610.8A CN108027109A (en) 2015-06-30 2016-06-15 Tank and the method for manufacturing tank
PCT/EP2016/000993 WO2017001047A1 (en) 2015-06-30 2016-06-15 Tank and method for producing a tank

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CN (1) CN108027109A (en)
AU (1) AU2016288513A1 (en)
DE (1) DE102015008428A1 (en)
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WO (1) WO2017001047A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3401910A (en) 1965-09-13 1968-09-17 Arcadia Air Products Guard rail mounting

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1457617A (en) * 1965-09-22 1966-01-24 Technigaz sealingly fixed tank or the like and its construction method
US3319431A (en) * 1966-05-25 1967-05-16 Exxon Research Engineering Co Double walled cryogenic tank
DE1272830B (en) * 1967-01-31 1968-07-11 Mannesmann Ag Underground Lagerbehaelter, especially Heizoeltank
US4021982A (en) * 1974-01-24 1977-05-10 Technigaz Heat insulating wall structure for a fluid-tight tank and the method of making same
CN85105351B (en) * 1985-07-13 1988-04-13 日本钢管株式会社 Method and system for insulating a cargotank for liquefied gas
RU2262034C2 (en) * 2001-01-11 2005-10-10 Кириллов Николай Геннадьевич Fuel reservoir for protracted storage of liquefied natural gas
KR20120138756A (en) * 2010-01-28 2012-12-26 오사까 가스 가부시키가이샤 Low-temperature tank
JP5998616B2 (en) * 2012-04-26 2016-09-28 株式会社Ihi Independent liner unit and tank construction method
CN203240268U (en) * 2013-03-19 2013-10-16 中国海洋石油总公司 Self-support type LNG (Liquefied Natural Gas) storage tank
DE102013016705A1 (en) * 2013-10-09 2015-04-09 Stiebel Eltron Gmbh & Co. Kg Method for insulating a hot water tank and hot water tank

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3401910A (en) 1965-09-13 1968-09-17 Arcadia Air Products Guard rail mounting

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RU2017143843A3 (en) 2019-11-25
RU2017143843A (en) 2019-08-01
RU2720345C2 (en) 2020-04-29
WO2017001047A1 (en) 2017-01-05
AU2016288513A1 (en) 2018-01-04
EP3317577A1 (en) 2018-05-09
CN108027109A (en) 2018-05-11

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