EP3215781A1 - Réservoir à gaz - Google Patents

Réservoir à gaz

Info

Publication number
EP3215781A1
EP3215781A1 EP15798344.6A EP15798344A EP3215781A1 EP 3215781 A1 EP3215781 A1 EP 3215781A1 EP 15798344 A EP15798344 A EP 15798344A EP 3215781 A1 EP3215781 A1 EP 3215781A1
Authority
EP
European Patent Office
Prior art keywords
coating
gas
gas container
container
layers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15798344.6A
Other languages
German (de)
English (en)
Inventor
Peter Adam
Wilhelm Bayerl
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.)
Linde GmbH
Original Assignee
Linde GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Publication of EP3215781A1 publication Critical patent/EP3215781A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
    • C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
    • C23C16/45523—Pulsed gas flow or change of composition over time
    • C23C16/45525—Atomic layer deposition [ALD]
    • C23C16/45555—Atomic layer deposition [ALD] applied in non-semiconductor technology
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/04—Coating on selected surface areas, e.g. using masks
    • C23C16/045—Coating cavities or hollow spaces, e.g. interior of tubes; Infiltration of porous substrates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/40—Oxides
    • C23C16/403—Oxides of aluminium, magnesium or beryllium
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/22—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the deposition of inorganic material, other than metallic material
    • C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
    • C23C16/40—Oxides
    • C23C16/405—Oxides of refractory metals or yttrium
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
    • C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
    • C23C16/455—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
    • C23C16/45523—Pulsed gas flow or change of composition over time
    • C23C16/45525—Atomic layer deposition [ALD]
    • C23C16/45527—Atomic layer deposition [ALD] characterized by the ALD cycle, e.g. different flows or temperatures during half-reactions, unusual pulsing sequence, use of precursor mixtures or auxiliary reactants or activations
    • C23C16/45529—Atomic layer deposition [ALD] characterized by the ALD cycle, e.g. different flows or temperatures during half-reactions, unusual pulsing sequence, use of precursor mixtures or auxiliary reactants or activations specially adapted for making a layer stack of alternating different compositions or gradient compositions
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/02—Pretreatment of the material to be coated
    • 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/005—Details of vessels or of the filling or discharging of vessels for medium-size and small storage vessels not under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/01—Shape
    • F17C2201/0104—Shape cylindrical
    • F17C2201/0119—Shape cylindrical with flat end-piece
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/056—Small (<1 m3)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/05—Size
    • F17C2201/058—Size portable (<30 l)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0607—Coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0602—Wall structures; Special features thereof
    • F17C2203/0612—Wall structures
    • F17C2203/0614—Single wall
    • F17C2203/0617—Single wall with one layer
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0636—Metals
    • F17C2203/0648—Alloys or compositions of metals
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
    • F17C2203/0634—Materials for walls or layers thereof
    • F17C2203/0658—Synthetics
    • F17C2203/0675—Synthetics with details of composition
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/232—Manufacturing of particular parts or at special locations of walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/05—Ultrapure fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • 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
    • F17C2223/036—Very high pressure (>80 bar)

Definitions

  • the invention relates to a gas container, in particular for filling with high purity
  • Gases are usually in special containers, usually pressure vessels, so-called.
  • Gas bottles transported. When transporting and storing special gases, such as those of particularly high purity or calibration gases, particularly high demands are placed on the containers.
  • the containers must be made of materials that ensure compatibility with the gases in question. This compatibility is significantly influenced by chemical reactions of the gases with the container material. Due to such chemical reactions, for example, the concentration of particularly reactive components in a gas mixture may decrease over time, which can significantly shorten the maximum storage time. In the case of high-purity gases, on the other hand, the purity decreases with time.
  • the container material can be specially selected and the container can then undergo a special process.
  • the container material then come in particular aluminum or aluminum alloys and stainless steel in question, since they are particularly resistant to reaction.
  • the container then undergoes a special pre-treatment with heating, evacuation and rinsing to remove water and other contaminants.
  • a passivation of the inner wall of the container ie there is a protective layer formed there with the gas to be filled by adhering gas atoms or gas molecules.
  • a new evacuation is performed and the container can be filled with the gas to be filled.
  • a similar process can be performed.
  • an additional step namely rinsing the cylinder with an acid
  • a disadvantage of the process described above and commonly used is that it is particularly complicated and expensive.
  • the process must be repeated when refilling, especially when filling with another gas.
  • the process is specially adapted to the gas to be filled.
  • it is not possible or at least not always the appropriate gas to be selected for passivation.
  • a container material is not equally suitable for all components of a gas mixture.
  • WO 2014/033359 A1 discloses, for example, a method in which a protective layer is applied inside a pump by means of an ALD method.
  • a gas container having the features of the independent claims.
  • Advantageous embodiments are the subject of the dependent claims and the following description.
  • An inventive gas container such as, for example, a gas cylinder or a "constant pressure (Piston) Cylinder * has on its inside a directly applied to a base material of the gas container coating.
  • the coating comprises several monomolecular layers of at least one
  • Coating material and, in each case substantially directly in the respective layer adjacent molecules.
  • This coating corresponds to a coating comprising a plurality of layers of at least one coating material produced by an ALD process, since precisely and only by an AL D process, i. a method for atomic layer deposition, monomolecular layers of coating material can be produced, wherein the individual molecules of a layer are substantially immediately adjacent.
  • each layer is produced individually by means of an ALD process.
  • a first reactant is brought into contact with the surface of a material to be coated, whereupon a monomolecular layer of the first reactant on the
  • a rinse process removes the excess non-surface-bound reactant.
  • a second reactant is brought into contact with the surface-bound first reactant.
  • the surface-bound molecules of the first reactant react with molecules of the second reactant to form molecules of the desired one
  • Coating material The excess second reactant is also removed by means of a rinse.
  • the result is a monomolecular, dense and homogeneous layer of the desired coating material on the surface of the material to be coated.
  • the operations mentioned can be repeated until a desired thickness of the coating of the surface has been reached.
  • Coating method ALD ie Atomic Layer Deposition
  • ALD ie Atomic Layer Deposition
  • Coating material is not related to the gas to be filled.
  • a gas container according to the invention can thus be used for various gases.
  • the at least one coating material is selected from Al 2 O 3, SiO 2, ⁇ O 2, Ta 2 O 5 and HfO 2.
  • these coating materials are relatively easy to produce by means of an ALD process and, on the other hand, provide particularly good protection against chemical reactions of filling gases with the base material of the gas container.
  • At least two of the multiple layers are formed of different Be Anlagenungsmatenalen.
  • a corrosion resistance can be increased because of different
  • the multiple layers are formed alternately from two different coating materials, in particular from Al 2 O 3 and ⁇ O 2. This increases the effect of different matehals, especially the
  • Molecules of the filling gas provided is applied. It may be a so-called passivation, which is an additional
  • the coating preferably has a thickness of at most 500 nm, in particular of at most 100 nm. This causes on the one hand as fast as possible
  • an indefinite thickness depends on the roughness of the base material. In this case, “sharp edges" of the base material must be completely covered.
  • the base material of the gas container comprises steel, in particular chromium-molybdenum steel, further, in particular 34CrMo4 steel.
  • steel is a cost-effective material, in itself for the above-mentioned pure gases or reactive gas mixtures, however, little suitable, since reactions take place particularly easily, which can lead to contamination of the filling gas. Due to the coating according to the invention, however, steel can now also be used as the base material for the gas container, since the undesired reactions are prevented.
  • 34CrMo4 steel is one commonly used for
  • the gas container is formed substantially z linder- or bottle-shaped.
  • This is a commonly used form of gas containers for filling with gas, as the gas container is thus particularly stable and easy to transport.
  • the gas container is designed as a gas pressure container, in particular as a high-pressure container. This allows a particularly effective filling of the gas container with gas and thus a reduction in the size of the gas
  • FIG. 1 shows schematically a gas container according to the invention.
  • Figure 2 shows a section of a wall of a gas container according to the invention with a coating in a preferred embodiment.
  • FIG. 3 shows a detail of a wall of a gas container according to the invention with a coating in a further preferred embodiment.
  • FIG. 1 schematically shows a gas container 100 designed as a gas cylinder according to the invention.
  • the gas cylinder 100 comprises a main body 101 with a substantially cylindrical shape and a closure cap 102.
  • the detail of the left lower corner of the wall of the gas container 100, designated A, is shown in more detail in FIG.
  • the wall comprises a base material 110, which is steel, preferably a 34CrMo steel commonly used for gas cylinders.
  • the thickness of the base material 110 is a few millimeters (about 4 mm to 8 mm) and does not differ in this respect from a conventional gas cylinder made of steel.
  • a coating 120 is now applied.
  • the coating 120 is at least one of several layers produced by means of an ALD process
  • Coating material such as AI 203 or ⁇ 02. Further detailing of the container wall, in particular of the coating 120, is shown in FIG. 3, which comprises the cutout designated B.
  • FIG. 3 which comprises the cutout designated B.
  • the detail B of the wall of the gas container of Figure 2 is larger and shown in more detail.
  • the coating 120 applied to the base material 110 consists of several layers. By way of example only three layers 130, 131 and 132 are shown. Depending on the desired embodiment, however, the coating may, for example, comprise up to 50 or 100 layers.
  • Each individual layer has the thickness of the diameter of a molecule of the respective coating material, which is in the range of a few nanometers. Furthermore, the molecules of a layer are homogeneous and close to each other, which is effected by the ALD method.
  • the coating 120 thus forms a very corrosion-resistant protective layer, whereby the gas container 100 according to the invention is very good for filling with
  • the coating 120 consists of layers of different coating materials.
  • the layers 130 and 132 consist of a first Be Anlagenungsmateriai, preferably AI203, and the intermediate layer 131 of a second Be Anlagenungsmateriai, preferably ⁇ 02.
  • This arrangement can be continued accordingly with a larger number of layers, so that the two coating materials alternate with each layer. This increases the protective effect, i. the corrosion resistance of the coating 120.
  • Coating materials and / or a different arrangement of the layers possible For example. For example, two or three layers of a coating material may be superimposed before one or more layers of another

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

L'invention concerne un réservoir à gaz (100) dont la face intérieure présente un revêtement (120) appliqué directement sur une matière de base (110) du réservoir à gaz (100), ce revêtement (120) comprenant plusieurs couches (130, 131, 132) d'au moins une matière de revêtement formées par un procédé ALD.
EP15798344.6A 2014-11-05 2015-11-04 Réservoir à gaz Withdrawn EP3215781A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014016410.1A DE102014016410A1 (de) 2014-11-05 2014-11-05 Gasbehälter
PCT/EP2015/075726 WO2016071406A1 (fr) 2014-11-05 2015-11-04 Réservoir à gaz

Publications (1)

Publication Number Publication Date
EP3215781A1 true EP3215781A1 (fr) 2017-09-13

Family

ID=54697538

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15798344.6A Withdrawn EP3215781A1 (fr) 2014-11-05 2015-11-04 Réservoir à gaz

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US (1) US10689756B2 (fr)
EP (1) EP3215781A1 (fr)
DE (1) DE102014016410A1 (fr)
WO (1) WO2016071406A1 (fr)

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US10689756B2 (en) 2020-06-23
US20180282867A1 (en) 2018-10-04
DE102014016410A1 (de) 2016-05-12
WO2016071406A1 (fr) 2016-05-12

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