WO2023058614A1 - 高圧水素ガス用蓄圧器 - Google Patents
高圧水素ガス用蓄圧器 Download PDFInfo
- Publication number
- WO2023058614A1 WO2023058614A1 PCT/JP2022/037016 JP2022037016W WO2023058614A1 WO 2023058614 A1 WO2023058614 A1 WO 2023058614A1 JP 2022037016 W JP2022037016 W JP 2022037016W WO 2023058614 A1 WO2023058614 A1 WO 2023058614A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- steel
- steel pipe
- hydrogen gas
- pressure
- accumulator
- Prior art date
Links
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 91
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 224
- 239000010959 steel Substances 0.000 claims abstract description 224
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 32
- 239000001257 hydrogen Substances 0.000 claims abstract description 32
- 230000008878 coupling Effects 0.000 claims description 38
- 238000010168 coupling process Methods 0.000 claims description 38
- 238000005859 coupling reaction Methods 0.000 claims description 38
- 238000007789 sealing Methods 0.000 claims description 20
- 238000005304 joining Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 229910001566 austenite Inorganic materials 0.000 claims description 6
- 230000000717 retained effect Effects 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 description 21
- 239000000463 material Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 13
- 238000012360 testing method Methods 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 9
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 7
- 239000011151 fibre-reinforced plastic Substances 0.000 description 7
- 229910000734 martensite Inorganic materials 0.000 description 7
- 238000005259 measurement Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 229910001563 bainite Inorganic materials 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 229910000859 α-Fe Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 239000002970 Calcium lactobionate Substances 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000004918 carbon fiber reinforced polymer Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005536 corrosion prevention Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J12/00—Pressure vessels in general
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J13/00—Covers or similar closure members for pressure vessels in general
- F16J13/02—Detachable closure members; Means for tightening closures
- F16J13/12—Detachable closure members; Means for tightening closures attached by wedging action by means of screw-thread, interrupted screw-thread, bayonet closure, or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/04—Screw-threaded joints; Forms of screw-threads for such joints with additional sealings
-
- 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
-
- 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
- F17C2201/0138—Shape tubular
-
- 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
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/22—Assembling processes
- F17C2209/228—Assembling processes by screws, bolts or rivets
-
- 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
-
- 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
- F17C2270/0134—Applications for fluid transport or storage placed above the ground
- F17C2270/0139—Fuel stations
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
Definitions
- the present invention relates to a high-pressure hydrogen gas pressure accumulator, and more particularly to a high-pressure hydrogen gas pressure accumulator capable of storing a large amount of hydrogen.
- Another method for storing large amounts of hydrogen is to compress and store gaseous hydrogen.
- hydrogen gas has been stored in cylinders at a pressure of about 15 MPa.
- efforts are being made to store hydrogen gas at a high pressure of 40 MPa or more at hydrogen stations and the like.
- Type 1 container made entirely of metal
- Type 2 container in which the outer circumference of the metal liner (only the cylindrical portion) is hoop-wrapped with FRP (fiber-reinforced plastic)
- FRP fiber-reinforced plastic
- Type 3 container in which the entirety including the dome part
- Type 4 container in which the outer circumference of the non-metallic liner (entirely including the mirror part) is fully wrapped with FRP
- Patent Document 1 discloses a container using a straight-shaped steel container.
- Patent Document 2 discloses a container in which the outer periphery of a Cr--Mo steel liner is coated with FRP.
- Non-Patent Document 1 discloses a container in which the outer periphery of an aluminum liner is coated with FRP.
- Patent Document 3 discloses a container in which the outer periphery of a resin liner is coated with FRP.
- each type of pressure accumulator has a length of several meters and a diameter of several tens of centimeters, and the volume per pressure accumulator is limited to about 300L. had been Therefore, in order to increase the amount of hydrogen gas stored in a hydrogen station or the like, it has been necessary to increase the number of installed pressure accumulators.
- each pressure accumulator requires a valve, a support stand, and the like. Therefore, an increase in the number of installed pressure accumulators leads to an increase in facility costs, which can be said to be inefficient.
- the present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a pressure accumulator for high-pressure hydrogen gas that is capable of storing a large amount of hydrogen in a single unit despite being easy to manufacture, transport, and install. With the goal.
- the present invention was made to solve the above problems, and the gist and configuration are as follows.
- a high-pressure hydrogen accumulator comprising a steel vessel, A pressure accumulator for high-pressure hydrogen gas, wherein the steel container is composed of two or more steel pipes connected by screws.
- the steel pipe in mass%, C: 0.005 to 0.60%, Si: 0.001 to 2.0%, Mn: 0.01 to 5.0%, P: 0.0001 to 0.060%, S: 0.00001 to 0.010%, N: 0.00001 to 0.010%, Al: 0.0001 to 1.00%, O: 0.010% or less, and H: 0 to 0.0010%, 5.
- the pressure accumulator for high-pressure hydrogen gas according to any one of 1 to 4 above, which has a component composition in which the balance is Fe and unavoidable impurities.
- the component composition in mass%, Mo: 0.0001 to 5.0%, Cr: 0.0001 to 5.0%, Ni: 0.0001 to 5.0%, Cu: 0.0001 to 5.0%, Co: 0.0001 to 5.0%, B: 0.0001 to 0.01%, V: 0.0001 to 1.0%, W: 0.0001 to 5.0%, Nb: 0.0001 to 0.1%, Ti: 0.0001 to 0.1%, Zr: 0.0001 to 0.2%, Hf: 0.0001 to 0.2%, Ta: 0.0001 to 0.2%, Sb: 0.0001 to 0.2%, Sn: 0.0001 to 0.2%, Ca: 0.0001 to 0.01%, 6.
- the pressure accumulator for high-pressure hydrogen gas according to 5 above, further containing at least one selected from the group consisting of Mg: 0.0001 to 0.01% and REM: 0.0001 to 0.5%.
- the area fraction of retained austenite in the structure of the steel pipe is 0 to 3%, 7.
- the high-pressure hydrogen gas accumulator of the present invention a steel container is constructed by connecting a plurality of steel pipes with screws. Therefore, it is possible to manufacture and transport steel pipes that are smaller than the size of the entire pressure accumulator and connect them at the installation site to complete the work. Therefore, the high-pressure hydrogen gas accumulator of the present invention is excellent in productivity and transportability. In addition, since the capacity can be freely changed by changing the number of steel pipes to be connected, it is possible to easily realize the optimum hydrogen storage amount according to the installation location. Therefore, the high-pressure hydrogen gas accumulator of the present invention can be suitably used not only in hydrogen stations but also in various places where hydrogen storage is required, such as offshore wind power generation, mountainous areas, ships, and harbors.
- FIG. 2 is a schematic cross-sectional view showing the structure of a joint portion of the high-pressure hydrogen gas accumulator according to the first embodiment of the present invention.
- FIG. 6 is a schematic cross-sectional view showing the structure of a joint portion of a high-pressure hydrogen gas accumulator according to a second embodiment of the present invention.
- FIG. 6 is a schematic cross-sectional view showing an example of the structure when an O-ring is used in the second embodiment;
- FIG. 10 is a schematic cross-sectional view showing the structure of a connecting portion of a high-pressure hydrogen gas accumulator according to a third embodiment of the present invention;
- FIG. 12 is a schematic cross-sectional view showing an example of the structure when an O-ring is used in the third embodiment;
- FIG. 10 is a schematic cross-sectional view showing the structure of a connecting portion of a high-pressure hydrogen gas accumulator according to a fourth embodiment of the present invention
- FIG. 11 is a schematic cross-sectional view showing an example of a structure when a leak port is provided in a fourth embodiment of the present invention
- BRIEF DESCRIPTION OF THE DRAWINGS It is a cross-sectional schematic diagram which shows the structure of the accumulator for high pressure hydrogen gas in the 1st Embodiment of this invention.
- the pressure accumulator of the present invention is a pressure accumulator for high-pressure hydrogen gas and includes a steel container.
- the high-pressure hydrogen gas pressure accumulator can be used, for example, as a hydrogen station pressure accumulator, but is not limited thereto and can be used for any purpose.
- the high-pressure hydrogen gas accumulator of the present invention may be composed only of a steel container, and has a carbon fiber reinforced resin (CFRP) layer described later on at least a part of the surface of the steel container. good too.
- CFRP carbon fiber reinforced resin
- Step container In the present invention, it is important that the steel container is composed of two or more steel pipes connected by screws. Therefore, the steel container does not have a welded portion at the joining portion between the steel pipes. The main effects will be described below.
- the high-pressure hydrogen gas accumulator of the present invention can be manufactured and transported in a state of being divided into a plurality of steel pipes, and assembled into a predetermined size at the installation site. Therefore, even a large-capacity pressure accumulator can be easily manufactured and transported. Also, a pressure accumulator with a desired capacity can be obtained simply by changing the number of steel pipes to be connected.
- Welding is generally used as a method for connecting multiple steel pipes.
- the weld structure is a structure altered by the heat during welding, and is inferior in toughness to the base material.
- welding is performed at the installation site, it is difficult to precisely control the welding conditions, so it is difficult to ensure the welding quality. Therefore, when the steel pipes are joined by welding, when filled with high-pressure hydrogen gas, there is a risk that the joints between the steel pipes may break.
- the material of the steel pipe is not particularly limited and any steel can be used, but from the viewpoint of cost reduction, it is preferable to use a steel pipe made of low alloy steel.
- C 0.005 to 0.60%, Si: 0.001 to 2.0%, Mn: 0.01 to 5.0%, P: 0.0001 to 0.060%, S: 0.00001 to 0.010%, N: 0.00001 to 0.010%, Al: 0.0001 to 1.00%, O: 0.010% or less, and H: 0 to 0.0010%, It is preferable to use a steel pipe having a chemical composition consisting of the balance Fe and unavoidable impurities.
- H is an element that may be contained in steel depending on manufacturing conditions. However, from the viewpoint of further improving the fracture toughness, it is preferable that the H content is small, and specifically, it is preferably 0.0010% or less. Since the lower the H content, the better, the lower limit of the H content may be 0%.
- the component composition is in mass %, Mo: 0.0001 to 5.0%, Cr: 0.0001 to 5.0%, Ni: 0.0001 to 5.0%, Cu: 0.0001 to 5.0%, Co: 0.0001 to 5.0%, B: 0.0001 to 0.01%, V: 0.0001 to 1.0%, W: 0.0001 to 5.0%, Nb: 0.0001 to 0.1%, Ti: 0.0001 to 0.1%, Zr: 0.0001 to 0.2%, Hf: 0.0001 to 0.2%, Ta: 0.0001 to 0.2%, Sb: 0.0001 to 0.2%, Sn: 0.0001 to 0.2%, Ca: 0.0001 to 0.01%, At least one selected from the group consisting of Mg: 0.0001 to 0.01% and REM: 0.0001 to 0.5% may be further included.
- each of the two or more steel pipes may be the same or different. However, from the viewpoint of preventing corrosion due to the potential difference between the steel pipes, it is preferable that all the steel pipes constituting the steel container have the same chemical composition.
- the structure of the steel pipe is also not particularly limited, and a steel pipe having any structure can be used. From the viewpoint of reducing the growth rate of fatigue cracks and improving hydrogen gas resistance, the area fraction of retained austenite is 0 to 3%, the aspect ratio is 2.0 or more and the major axis is 10 ⁇ m or more. It is preferable to use a steel pipe having a structure with a number density of 10 pieces/100 mm 2 or less. Although the lower limit of the number density is not particularly limited, it may be 0/100 mm 2 .
- the "structure” in the disclosure of this specification refers to the structure at the center in the longitudinal direction of the steel pipe and at the inner wall thickness 1/4 position. That is, the area fraction of each structure is the area fraction of the structure at the center of the steel pipe in the longitudinal direction and at the inner wall thickness 1/4 position. Similarly, the number density of the inclusions is the number density at the center of the steel pipe in the longitudinal direction and at the inner wall thickness 1/4 position.
- the area fraction of retained austenite can be measured by X-ray diffraction.
- a test piece is sampled from the center in the longitudinal direction of the steel pipe at the inner wall thickness 1/4 position, and the cut surface of the test piece is chemically polished before the measurement.
- a Co-K ⁇ ray source is used as the incident X-ray, and the residual Calculate the area fraction of austenite.
- the number density of inclusions can be obtained by observation using an optical microscope.
- a test piece for measuring inclusions is taken from the center in the longitudinal direction of the steel pipe, at the inner wall thickness 1/4 position. The dimensions of the test piece are 20 mm in the length direction, 5 mm in the width direction, and 15 mm in the thickness direction.
- the test piece is embedded in resin so that the surface (L section) consisting of the longitudinal direction and the thickness direction with respect to the rolling direction of the steel pipe becomes the observation surface, and the surface is mirror-polished.
- the mirror-polished surface is observed with an optical microscope, and the number of inclusions having an aspect ratio of 2.0 or more and a length of 10 ⁇ m or more in an area of 10 mm ⁇ 10 mm is measured.
- the number density is calculated by dividing the obtained number of inclusions by the area (100 mm 2 ) of the region.
- Ten specimens for measurement of inclusions are sampled from each steel pipe to be measured, and the number density of the ten specimens is arithmetically averaged to determine the number density of inclusions in the steel pipe.
- the aspect ratio and major diameter of inclusions are obtained in accordance with the standard of JIS G0555:2020 (microscopic test method for non-metallic inclusions in steel).
- the total area fraction of martensite and bainite in the steel pipe structure is preferably 80% or more, and more preferably 80% or more.
- the upper limit of the total area fraction of martensite and bainite is not particularly limited, it may be 100%.
- the upper limit of the area fraction of martensite is not particularly limited, it may be 100%.
- the area fraction of ferrite is preferably 5% or less.
- the lower limit of the area fraction of ferrite is not particularly limited, it may be 0%.
- martensite is defined as including tempered martensite.
- the area fractions of martensite, bainite, and ferrite can be obtained by photographing a structure photograph by microscopic observation and analyzing the image of the structure photograph. Either an optical microscope or a scanning electron microscope can be used for the microscopic observation, and the observation can be performed at an appropriate magnification between 100 and 5000 times.
- the test piece used for the microscopic observation is taken so that the observation position is at the center in the longitudinal direction of the steel pipe, the inner wall thickness 1/4 position.
- the section of the sampled test piece is etched with a 3 vol % nital solution to expose the microstructure, and then the microscopic observation is performed. Identification of each tissue in the tissue photograph can be performed, for example, by comparing the tissue in each part of the tissue photograph with the tissue photograph recorded in Non-Patent Document 2.
- each of the two or more steel pipes may be the same or different, but it is preferable that they have the same structure.
- the tensile strength (TS) of each of the two or more steel pipes is preferably 1100 MPa or less, more preferably 950 MPa or less.
- the lower limit of the tensile strength is also not limited, but if the tensile strength is low, it is necessary to increase the wall thickness of the steel pipe in order to ensure the strength required for the pressure accumulator, which leads to an increase in cost. . Therefore, the tensile strength of each of the two or more steel pipes is preferably 800 MPa or more.
- the steel pipe is not particularly limited, and one manufactured by any method can be used.
- it may be an electric resistance welded pipe, a spiral steel pipe, a UOE steel pipe, a steel pipe shape obtained by hollowing out the inside of a steel material by machining or the like, or a steel pipe shape manufactured by forging, or a heated billet.
- It may be a seamless steel pipe obtained by rolling and forming a steel pipe shape.
- welding quality becomes a problem.
- welding for manufacturing steel pipes is generally performed under strictly controlled conditions in factories such as steel mills, so that the welding quality is high.
- post-weld heat treatment or the like is performed to improve the mechanical properties of the welded portion, if necessary. Therefore, compared to the welded portion where the steel pipes are welded together on site, the welded portion of the ordinary steel pipe itself is less likely to cause breakage. Therefore, it is possible to use steel pipes manufactured using welding, such as electric resistance welded pipes, spiral steel pipes, and UOE steel pipes.
- seamless steel pipe As the steel pipe from the viewpoint of further reducing the risk of breakage and enabling use at higher pressures. Since seamless steel pipes have no welded joints, the properties of the base material are uniform throughout the steel pipes. In addition, compared to steel pipes manufactured by hollowing out or forging, seamless steel pipes are less expensive and have superior properties such as toughness. It is particularly suitable.
- the length of each steel pipe is not particularly limited, and can be any length. However, if the length of the steel pipe is excessively short, the number of joints per pressure accumulator increases, resulting in an increase in cost. Therefore, the length of each of the two or more steel pipes is preferably 3 m or longer, more preferably 5 m or longer. On the other hand, if the individual steel pipes are long, the number of joints can be reduced and there is a possibility of cost reduction.
- the length of each of the two or more steel pipes is preferably 100 m or less, more preferably 12 m or less, which is transportable by vehicle, and even more preferably 6 m or less.
- any volume can be secured by connecting the number of steel pipes according to the space of the installation location without being subject to manufacturing and transportation restrictions. be able to. Therefore, the number of steel pipes forming one steel container is not particularly limited, and may be any number of two or more.
- a pressure accumulator having a length of several tens to several hundred meters can be configured by connecting several tens to hundreds of steel pipes. Also, a large number of steel pipes exceeding several hundred can be joined together to form an ultra-large-capacity pressure accumulator.
- the upper limit of the number of steel pipes is not limited, and the number can be arbitrarily supplemented according to the space of the installation place.
- the number of steel pipes may be 1000 or less, 500 or less, 200 or less, or 100 or less.
- joining portion the structure of the portion where the steel pipes are joined together by screws
- shape of the screw is not particularly limited, and any shape can be used as long as it can support the necessary stress.
- the central axes of the steel pipes constituting the steel container are coaxially arranged.
- the central axes of the respective steel pipes it is possible to more easily connect with a screw structure.
- the deviation of the central axis of the steel pipes forming the steel container is preferably 5 mm or less, more preferably 1 mm or less.
- the deviation of the central axis of the steel pipes constituting the steel container means the maximum deviation between the central axis of each steel pipe included in the steel container and the central axis of the steel pipe adjacent to the steel pipe. defined as a value.
- a sealing member at the connecting portion.
- Said sealing member can typically be arranged between two adjacent steel pipes.
- a sealing member between the steel pipe and the coupling adjacent to the steel pipe.
- the sealing member is not particularly limited, and any sealing member such as a gasket, packing, or O-ring can be used.
- the material of the sealing member is not particularly limited, and any material such as metal or resin can be used. From the viewpoint of improving the sealing property, it is preferable to use resin, copper, or the like, which can be deformed to improve the sealing property when the screw is tightened.
- double-arrange the sealing members means that two seal members are arranged between the steel pipe and the member adjacent to the steel pipe (other steel pipe or coupling).
- the sealing member closer to the inside of the steel container than the threaded portion.
- the threaded portion can be prevented from coming into contact with hydrogen gas.
- hydrogen embrittlement of the threaded portion can be suppressed, so that the risk of fracture of the steel container can be reduced.
- the steel container can be provided with lids on both ends. Any lid can be used as the lid as long as it can seal the steel container.
- the material of the lid is not particularly limited, it is generally preferable to use a steel lid.
- said lid is a screw-on lid.
- FIG. 1 is a schematic cross-sectional view showing the structure of the connecting portion of the high-pressure hydrogen gas pressure vessel 1 according to the first embodiment of the present invention.
- the steel container of the high-pressure hydrogen gas accumulator in this embodiment is composed of a plurality of steel pipes 10, and the steel pipes adjacent to each other are joined together by screws having the structure shown in FIG.
- first steel pipe 10a is formed with a female threaded portion 11a
- second steel pipe 10b is provided with a male thread that is screwed with the female threaded portion 11a of the first steel pipe 10a.
- a portion 12b is provided.
- the first steel pipe 10a and the second steel pipe 10b are connected by screwing together the female threaded portion 11a of the first steel pipe 10a and the male threaded portion 12b of the second steel pipe 10b.
- the seal portion When arranging the seal portion, it is preferable to install it at a position further to the left of the leftmost screw portion of the female screw portion 11a, that is, at a position where hydrogen gas can be prevented from reaching the screw portion (the second sealing portion to be described later). 2 embodiment, see FIG. 3).
- the steel container can be provided with lids on both ends. Any lid can be used as the lid as long as it can seal the steel container.
- a screw-on lid 50 can be provided at the end of the steel container. It should be noted that the lid can be similarly provided in other embodiments described later.
- the steel container shown in FIG. 8 is composed of two steel pipes connected by screws, the number of steel pipes may be any number of two or more.
- FIG. 2 is a schematic cross-sectional view showing the structure of the connecting portion of the high-pressure hydrogen gas accumulator 1 according to the second embodiment of the present invention.
- the steel container of the high-pressure hydrogen gas accumulator in this embodiment is composed of a plurality of steel pipes 10, and the steel pipes adjacent to each other are connected by couplings 20 provided inside the steel pipes as shown in FIG. are connected using
- one end of the first steel pipe 10a is formed with a female threaded portion 11a
- one end of the coupling 20 is provided with a male threaded portion 22 that is screwed with the female threaded portion 11a of the first steel pipe 10a.
- One end of the second steel pipe 10b is formed with a female threaded portion 11b
- the other end of the coupling 20 is provided with a male threaded portion 22 that screws together with the female threaded portion 11b of the second steel pipe 10b.
- the female threaded portion 11a of the first steel pipe 10a and the male threaded portion 22 at one end of the coupling 20 the female threaded portion 11b of the second steel pipe 10b and the male threaded portion 22 at the other end of the coupling 20
- the first steel pipe 10a and the second steel pipe 10b are connected via the coupling 20 by screwing them together.
- an O-ring 30 as a sealing member between the steel pipe 10 and the coupling 20.
- leakage of hydrogen gas can be prevented more reliably.
- FIGS. 2 and 3 show a case in which the inner diameter of the coupling 20 and the inner diameter of the steel pipe 10 are the same, the inner diameter of the coupling 20 and the inner diameter of the steel pipe 10 may be different. Moreover, although the first steel pipe 10a and the second steel pipe 10b are in contact with each other in the examples shown in FIGS.
- FIG. 4 is a schematic cross-sectional view showing the structure of the connecting portion of the high-pressure hydrogen gas accumulator 1 according to the third embodiment of the present invention.
- the steel container of the accumulator for high-pressure hydrogen gas in this embodiment is composed of a plurality of steel pipes 10, and the steel pipes adjacent to each other are connected by couplings 20 provided inside the steel pipes as shown in FIG. are connected using
- a male threaded portion 12a is formed at one end of the first steel pipe 10a, and a female threaded portion 21 screwed with the male threaded portion 12a of the first steel pipe 10a is formed at one end of the coupling 20.
- a male threaded portion 12b is formed at one end of the second steel pipe 10b, and a female threaded portion 21 screwed to the male threaded portion 12b of the second steel pipe 10b is formed at the other end of the coupling 20. is provided.
- the male threaded portion 12a of the first steel pipe 10a and the female threaded portion 21 at one end of the coupling 20 the male threaded portion 12b of the second steel pipe 10b and the female threaded portion 21 at the other end of the coupling 20
- the first steel pipe 10a and the second steel pipe 10b are connected via the coupling 20 by screwing them together.
- an O-ring 30 as a sealing member between the steel pipe 10 and the coupling 20.
- the contact portion in addition to between the first steel pipe 10a and the coupling 20, between the second steel pipe 10b and the coupling 20, between the first steel pipe 10a and the second steel pipe 10b ( The contact portion) is also provided with an O-ring.
- FIGS. 4 and 5 show a case in which the inner diameter of the coupling 20 and the inner diameter of the steel pipe 10 are the same, but the inner diameter of the coupling 20 and the inner diameter of the steel pipe 10 may be different. Also, in the examples shown in FIGS. 4 and 5, the first steel pipe 10a and the second steel pipe 10b are in contact with each other, but they may be separated as described in the following fourth embodiment. .
- FIG. 6 is a schematic cross-sectional view showing the structure of the connecting portion of the high-pressure hydrogen gas accumulator 1 according to the fourth embodiment of the present invention.
- the steel pipes adjacent to each other are joined together using a coupling 20 provided inside the steel pipes, as in the third embodiment.
- the tip of the first steel pipe 10a and the tip of the second steel pipe 10b are in contact with each other in the third embodiment, in the present embodiment, the tip of the first steel pipe 10a and the second steel pipe The tip of 10b does not touch directly.
- Other points can be the same as those of the third embodiment.
- a hydrogen gas leak can be detected by placing a hydrogen detector in front of the leak port.
- the position of installing the leak port is not particularly limited, but it is installed either or both between the end of the coupling and the thread closest to the end and between the sealing member and the thread closest to the sealing member. is preferred.
- FIG. 7 shows an example of arrangement when the leak port 40 is provided.
- a hydrogen detector (not shown) or the like can be connected to the leak port 40 .
- a leak port can also be provided when steel pipes are directly connected with screws as shown in Fig. 1, or when a coupling provided inside the steel pipes is used as shown in Figs. However, in that case, it is necessary to provide a leak port in the steel pipe. On the other hand, as shown in FIG. 7, when a coupling provided outside the steel pipe is used, it is sufficient to provide a leak port in the coupling, which facilitates manufacturing.
- a to F of the joining method shown in Table 1 represent the following structures, respectively.
- the structures of A to E were as shown in FIGS. 1 to 5, respectively.
- As the O-ring a resin-made one was used.
- F Welding
- lids having a thickness of 110 mm and having the same screw shape as the joint.
- the material of the lid is TS (tensile strength): SNCM439 steel of 900 MPa class, and the SNCM439 steel is forged into a lid shape. Hydrogen gas was introduced by opening a hole in the center of the lid and connecting a pipe.
- the lid may have a structure including two of a lid without a screw structure and a threaded member for supporting the lid.
- SCM435 and SNCM439 steels were adjusted to TS800-900 MPa by quenching and tempering. Also, X52 and X65 were manufactured by hot rolling.
- the area fractions of martensite (M), bainite (B), retained austenite (RA), and ferrite in each steel pipe were measured by the method described above.
- the number density of inclusions having an aspect ratio of 2.0 or more and a major diameter of 10 ⁇ m or more was also measured by the method described above.
- For the measurement of the area fraction and number density of inclusions a test piece taken from the center of the steel pipe in the longitudinal direction and from the inner wall thickness 1/4 position was used. The measurement results are also shown in Table 1.
- Boost test Using the obtained steel container, a high-pressure hydrogen gas accumulator was fabricated, and the inside was actually filled with pure hydrogen, and hydrogen leakage from screw joints or welds was confirmed. Specifically, hydrogen gas was pressurized to a predetermined pressure by a compressor, and filled into the high-pressure hydrogen gas accumulator. This state was maintained for 10 minutes, and it was tested whether or not hydrogen gas leakage occurred. The test was repeated while increasing the pressure in increments of 5 MPa up to a maximum of 50 MPa, and the maximum pressure at which no leakage occurred was determined. The evaluation results are also shown in Table 1.
- the toughness of the joint in hydrogen gas was evaluated according to ASTM-E1820. Specifically, from the joint (weld metal and HAZ (heat affected zone) for steel containers joined by welding), three A test piece was taken and the fracture toughness was measured. In addition, the test method may be evaluated by a method according to ASME E1681 or ASTM E399. The test environment was pure hydrogen at 21 MPa. When the average fracture toughness value of the three test pieces was higher than 52 MPa ⁇ m 1/2 , it was judged to be good, and when it was 52 MPa ⁇ m 1/2 or less, it was judged to be bad. The evaluation results are also shown in Table 1.
- the pressure accumulator for high-pressure hydrogen gas that satisfies the conditions of the present invention has a maximum pressure of 15 MPa or more at which leakage does not occur, and the toughness of the joint in hydrogen gas is also good.
- rice field On the other hand, in the welded pressure accumulator, the maximum pressure at which no leakage occurred was 10 MPa. In addition, the toughness of the joint in hydrogen gas was also poor.
- the present invention by connecting steel pipes that are easy to produce and transport, it is possible to easily create a large-capacity pressure accumulator that can stably store high-pressure hydrogen gas.
- two steel pipes were used to form the steel container, but even if three or more pipes are used, the load applied to each connecting portion is basically the same as long as the pressure is the same.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
(1)全体が金属で形成されたType1容器
(2)金属製ライナの外周(円柱状部分のみ)を、FRP(fiber-reinforced plastic)によりフープラップしたType2容器
(3)金属製ライナの外周(鏡部(dome part)を含む全体)を、FRPによりフルラップしたType3容器
(4)非金属製ライナの外周(鏡部を含む全体)を、FRPによりフルラップしたType4容器
前記鋼製容器が、ねじによりつなぎ合わされた2本以上の鋼管で構成されている、高圧水素ガス用蓄圧器。
C :0.005~0.60%、
Si:0.001~2.0%、
Mn:0.01~5.0%、
P :0.0001~0.060%、
S :0.00001~0.010%、
N :0.00001~0.010%、
Al:0.0001~1.00%、
O :0.010%以下、および
H :0~0.0010%を含み、
残部Feおよび不可避的不純物からなる成分組成を有する、上記1~4のいずれか一項に記載の高圧水素ガス用蓄圧器。
Mo:0.0001~5.0%、
Cr:0.0001~5.0%、
Ni:0.0001~5.0%、
Cu:0.0001~5.0%、
Co:0.0001~5.0%、
B :0.0001~0.01%、
V :0.0001~1.0%、
W :0.0001~5.0%、
Nb:0.0001~0.1%、
Ti:0.0001~0.1%、
Zr:0.0001~0.2%、
Hf:0.0001~0.2%、
Ta:0.0001~0.2%、
Sb:0.0001~0.2%、
Sn:0.0001~0.2%、
Ca:0.0001~0.01%、
Mg:0.0001~0.01%、および
REM:0.0001~0.5%からなる群より選択される少なくとも1つをさらに含有する、上記5に記載の高圧水素ガス用蓄圧器。
アスペクト比2.0以上かつ長径10μm以上の介在物の個数密度が10個/100mm2以下である、上記5または6に記載の高圧水素ガス用蓄圧器。
本発明の蓄圧器は、高圧水素ガス用蓄圧器であり、鋼製容器を備えている。前記高圧水素ガス用蓄圧器は、例えば、水素ステーション用蓄圧器として用いることができるが、それに限定されることなく、任意の用途で用いることができる。
本発明においては、上記鋼製容器が、ねじによりつなぎ合わされた2本以上の鋼管で構成されていることが重要である。したがって、前記鋼製容器は鋼管同士の接合部に溶接部を有しない。以下、その主な効果について説明する。
C :0.005~0.60%、
Si:0.001~2.0%、
Mn:0.01~5.0%、
P :0.0001~0.060%、
S :0.00001~0.010%、
N :0.00001~0.010%、
Al:0.0001~1.00%、
O :0.010%以下、および
H :0~0.0010%を含み、
残部Feおよび不可避的不純物からなる成分組成を有する鋼管を用いることが好ましい。
Mo:0.0001~5.0%、
Cr:0.0001~5.0%、
Ni:0.0001~5.0%、
Cu:0.0001~5.0%、
Co:0.0001~5.0%、
B :0.0001~0.01%、
V :0.0001~1.0%、
W :0.0001~5.0%、
Nb:0.0001~0.1%、
Ti:0.0001~0.1%、
Zr:0.0001~0.2%、
Hf:0.0001~0.2%、
Ta:0.0001~0.2%、
Sb:0.0001~0.2%、
Sn:0.0001~0.2%、
Ca:0.0001~0.01%、
Mg:0.0001~0.01%、および
REM:0.0001~0.5%からなる群より選択される少なくとも1つをさらに含有することもできる。
本発明において、鋼管同士をねじによってつなぎ合わせる部分(以下、「つなぎ合わせ部」という)の構造は特に限定されず、鋼管をねじによって連結できるものであれば任意の構造とすることができる。また、ねじの形状は特に限定されず、必要な応力を担持できるものであれば任意の形状とすることができる。
図1は、本発明の第1の実施形態における高圧水素ガス用蓄圧器1のつなぎ合わせ部の構造を示す断面模式図である。本実施形態における高圧水素ガス用蓄圧器の鋼製容器は、複数の鋼管10で構成されており、互いに隣接する鋼管同士は、図1に示した構造のねじによりつなぎ合わされている。
図2は、本発明の第2の実施形態における高圧水素ガス用蓄圧器1のつなぎ合わせ部の構造を示す断面模式図である。本実施形態における高圧水素ガス用蓄圧器の鋼製容器は、複数の鋼管10で構成されており、互いに隣接する鋼管同士は、図2に示したように鋼管の内側に設けられたカップリング20を用いてつなぎ合わされている。
図4は、本発明の第3の実施形態における高圧水素ガス用蓄圧器1のつなぎ合わせ部の構造を示す断面模式図である。本実施形態における高圧水素ガス用蓄圧器の鋼製容器は、複数の鋼管10で構成されており、互いに隣接する鋼管同士は、図4に示したように鋼管の内側に設けられたカップリング20を用いてつなぎ合わされている。
図6は、本発明の第4の実施形態における高圧水素ガス用蓄圧器1のつなぎ合わせ部の構造を示す断面模式図である。本実施形態の鋼製容器では、上記第3の実施形態と同様、互いに隣接する鋼管同士が鋼管の内側に設けられたカップリング20を用いてつなぎ合わされている。しかし、上記第3の実施形態では第1の鋼管10aの先端と第2の鋼管10bの先端が当接していたのに対して、本実施形態では第1の鋼管10aの先端と第2の鋼管10bの先端が直接接触しない。それ以外の点については上記第3の実施形態と同様とすることができる。例えば、図7に示すように、鋼管10とカップリング20の間にシール部材としてのOリング30を設けることが好ましい。
a:X52
b:SCM435
c:SNCN439
d:X65
A:直接ねじ接合
B:内側カップリング(Oリングなし)
C:内側カップリング(Oリングあり)
D:外面カップリング(Oリングなし)
E:外面カップリング(Oリングあり)
F:溶接
得られた鋼製容器を用いて高圧水素ガス用蓄圧器を作製し、実際に内部に純水素を充填し、ねじ接合もしくは溶接部からの水素の漏れを確認した。具体的には、水素ガスを圧縮機で所定の圧力まで昇圧し、前記高圧水素ガス用蓄圧器に充填した。その状態で10分間保持し、水素ガスの漏れが発生するか否かを試験した。圧力を5MPa刻みで最大50MPaまで上昇させながら前記試験を繰返し行い、漏洩が発生しない最高圧力を求めた。評価結果を表1に併記する。
また、作製した蓄圧器を用い、水素ガス中における接合部の靱性を、ASTM-E1820に従って評価した。具体的には、接合部(溶接によって接合した鋼製容器については、溶接金属およびHAZ(熱影響部))より、試験片の方向がL-C方向となるように蓄圧器一つあたり3つの試験片を採取し、破壊靱性を測定した。なお、試験方法はASME E1681でもASTM E399に従った方法で評価してもよい。試験環境は、純水素、21MPaとした。3つの試験片における破壊靭性値の平均値が52MPa・m1/2より高い場合を良好、52MPa・m1/2以下の場合を不良と判定した。評価結果を表1に併記する。
10 鋼管
(10a 第1の鋼管)
(10b 第2の鋼管)
11 雌ねじ部
12 雄ねじ部
20 カップリング
21 雌ねじ部
22 雄ねじ部
30 Oリング
40 リークポート
50 蓋
Claims (7)
- 鋼製容器を備える高圧水素用蓄圧器であって、
前記鋼製容器が、ねじによりつなぎ合わされた2本以上の鋼管で構成されている、高圧水素ガス用蓄圧器。 - 前記ねじによるつなぎ合わせが、前記鋼管の内側に設けられたカップリングにより行われる、請求項1に記載の高圧水素ガス用蓄圧器。
- 前記ねじによるつなぎ合わせが、前記鋼管の外側に設けられたカップリングにより行われる、請求項1に記載の高圧水素ガス用蓄圧器。
- 前記2本以上の鋼管のつなぎ合わせ部にシール部材を有する、請求項1~3のいずれか一項に記載の高圧水素ガス用蓄圧器。
- 前記鋼管が、質量%で、
C :0.005~0.60%、
Si:0.001~2.0%、
Mn:0.01~5.0%、
P :0.0001~0.060%、
S :0.00001~0.010%、
N :0.00001~0.010%、
Al:0.0001~1.00%、
O :0.010%以下、および
H :0~0.0010%を含み、
残部Feおよび不可避的不純物からなる成分組成を有する、請求項1~4のいずれか一項に記載の高圧水素ガス用蓄圧器。 - 前記成分組成が、質量%で、
Mo:0.0001~5.0%、
Cr:0.0001~5.0%、
Ni:0.0001~5.0%、
Cu:0.0001~5.0%、
Co:0.0001~5.0%、
B :0.0001~0.01%、
V :0.0001~1.0%、
W :0.0001~5.0%、
Nb:0.0001~0.1%、
Ti:0.0001~0.1%、
Zr:0.0001~0.2%、
Hf:0.0001~0.2%、
Ta:0.0001~0.2%、
Sb:0.0001~0.2%、
Sn:0.0001~0.2%、
Ca:0.0001~0.01%、
Mg:0.0001~0.01%、および
REM:0.0001~0.5%からなる群より選択される少なくとも1つをさらに含有する、請求項5に記載の高圧水素ガス用蓄圧器。 - 前記鋼管の組織における残留オーステナイトの面積分率が0~3%であり、
アスペクト比2.0以上かつ長径10μm以上の介在物の個数密度が10個/100mm2以下である、請求項5または6に記載の高圧水素ガス用蓄圧器。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020247010176A KR20240051217A (ko) | 2021-10-04 | 2022-10-03 | 고압 수소 가스용 축압기 |
AU2022359109A AU2022359109A1 (en) | 2021-10-04 | 2022-10-03 | Pressure Vessel for High-Pressure Hydrogen Gas |
JP2023504867A JPWO2023058614A1 (ja) | 2021-10-04 | 2022-10-03 | |
CN202280061589.9A CN117957389A (zh) | 2021-10-04 | 2022-10-03 | 高压氢气用蓄压器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021-163676 | 2021-10-04 | ||
JP2021163676 | 2021-10-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023058614A1 true WO2023058614A1 (ja) | 2023-04-13 |
Family
ID=85804297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2022/037016 WO2023058614A1 (ja) | 2021-10-04 | 2022-10-03 | 高圧水素ガス用蓄圧器 |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPWO2023058614A1 (ja) |
KR (1) | KR20240051217A (ja) |
CN (1) | CN117957389A (ja) |
AU (1) | AU2022359109A1 (ja) |
WO (1) | WO2023058614A1 (ja) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5474334A (en) * | 1994-08-02 | 1995-12-12 | Halliburton Company | Coupling assembly |
JP2009293799A (ja) | 2009-04-28 | 2009-12-17 | Faber Industrie Spa | Cr−Mo鋼製ライナーを用いた高圧水素貯蔵用FRP容器 |
CN204186984U (zh) * | 2014-10-27 | 2015-03-04 | 朱薪霓 | 一种压力储水桶外桶体 |
WO2016167034A1 (ja) | 2015-04-15 | 2016-10-20 | 八千代工業株式会社 | 圧力容器 |
JP2019044969A (ja) | 2017-09-04 | 2019-03-22 | Jfeスチール株式会社 | 高圧水素ガス用蓄圧器 |
-
2022
- 2022-10-03 JP JP2023504867A patent/JPWO2023058614A1/ja active Pending
- 2022-10-03 WO PCT/JP2022/037016 patent/WO2023058614A1/ja active Application Filing
- 2022-10-03 KR KR1020247010176A patent/KR20240051217A/ko unknown
- 2022-10-03 AU AU2022359109A patent/AU2022359109A1/en active Pending
- 2022-10-03 CN CN202280061589.9A patent/CN117957389A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5474334A (en) * | 1994-08-02 | 1995-12-12 | Halliburton Company | Coupling assembly |
JP2009293799A (ja) | 2009-04-28 | 2009-12-17 | Faber Industrie Spa | Cr−Mo鋼製ライナーを用いた高圧水素貯蔵用FRP容器 |
CN204186984U (zh) * | 2014-10-27 | 2015-03-04 | 朱薪霓 | 一种压力储水桶外桶体 |
WO2016167034A1 (ja) | 2015-04-15 | 2016-10-20 | 八千代工業株式会社 | 圧力容器 |
JP2019044969A (ja) | 2017-09-04 | 2019-03-22 | Jfeスチール株式会社 | 高圧水素ガス用蓄圧器 |
Non-Patent Citations (2)
Title |
---|
"Introduction to the structures and properties of metal materials - heat treatment and structure control to make use of materials", 2004, TAIGA PUBLISHING |
ENEOS TECHNICAL REVIEW, vol. 55, no. 2, June 2013 (2013-06-01), pages 69 - 72 |
Also Published As
Publication number | Publication date |
---|---|
AU2022359109A1 (en) | 2024-03-14 |
CN117957389A (zh) | 2024-04-30 |
KR20240051217A (ko) | 2024-04-19 |
JPWO2023058614A1 (ja) | 2023-04-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
RU2211876C2 (ru) | Системы наземной транспортировки сжиженного природного газа | |
US7147124B2 (en) | Containers and methods for containing pressurized fluids using reinforced fibers and methods for making such containers | |
US20080277398A1 (en) | Seam-welded 36% ni-fe alloy structures and methods of making and using same | |
EP2992992A1 (en) | Different-material joint | |
US9302437B2 (en) | High-pressure tank with permeation barrier | |
US20030098018A1 (en) | CNG fuel storage and delivery systems for natural gas powered vehicles | |
Farag et al. | New approach of pipelines joining using fiber reinforced plastics composites | |
JP2019113121A (ja) | 高圧水素ガス用蓄圧器 | |
Slifka et al. | Measurements of fatigue crack growth rates of the heat-affected zones of welds of pipeline steels | |
WO2023058614A1 (ja) | 高圧水素ガス用蓄圧器 | |
JP6882237B2 (ja) | 高圧水素ガス用蓄圧器 | |
Ronevich et al. | Hydrogen-accelerated fatigue crack growth in arc welded X100 pipeline steel. | |
JP7075762B2 (ja) | 超低温容器 | |
WO2023034953A2 (en) | Compact inserts for cryo-compressed storage vessels | |
CN105081705A (zh) | 高压氮气球形贮罐的制备方法 | |
US20090200317A1 (en) | End fitting for pressure vessel | |
JP2019044890A (ja) | 高圧水素ガス用蓄圧器およびその製造方法 | |
Fairchild et al. | Pressurized LNG: Prototype container fabrication | |
TWI281011B (en) | Improved containers and methods for containing pressurized fluids using reinforced fibers and methods for making such containers | |
Focke et al. | The influence of the reeling installation method on the integrity of circumferential welds in tight fit pipe | |
Schueller et al. | GluBi® Pipe-A New Development of A Reelable Lined Pipe | |
Kim et al. | A study on mechanical properties of natural gas pipe material in high pressure hydrogen gas environment | |
Pismenny et al. | Increase of strength characteristics of spirally-welded pipes of structural designation | |
EP4396486A2 (en) | Compact inserts for cryo-compressed storage vessels | |
CN118019640A (zh) | 用于储存或传输氢气的装置及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 2023504867 Country of ref document: JP |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22878483 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 808620 Country of ref document: NZ Ref document number: 2022359109 Country of ref document: AU Ref document number: AU2022359109 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202280061589.9 Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 2022359109 Country of ref document: AU Date of ref document: 20221003 Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 20247010176 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2022878483 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2022878483 Country of ref document: EP Effective date: 20240408 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |