WO2022259906A1 - 圧力容器用ライナー及び圧力容器用ライナーの製造方法 - Google Patents
圧力容器用ライナー及び圧力容器用ライナーの製造方法 Download PDFInfo
- Publication number
- WO2022259906A1 WO2022259906A1 PCT/JP2022/022055 JP2022022055W WO2022259906A1 WO 2022259906 A1 WO2022259906 A1 WO 2022259906A1 JP 2022022055 W JP2022022055 W JP 2022022055W WO 2022259906 A1 WO2022259906 A1 WO 2022259906A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liner
- pressure vessel
- liner member
- central portion
- joining
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 238000000034 method Methods 0.000 title description 14
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 34
- 238000005304 joining Methods 0.000 claims abstract description 16
- 239000011347 resin Substances 0.000 claims abstract description 16
- 229920005989 resin Polymers 0.000 claims abstract description 16
- 230000002093 peripheral effect Effects 0.000 claims abstract description 13
- 238000000465 moulding Methods 0.000 claims description 29
- 230000007423 decrease Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 6
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000012783 reinforcing fiber Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000001175 rotational moulding Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/16—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge constructed of plastics materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/006—Joining parts moulded in separate cavities
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14598—Coating tubular articles
- B29C45/14622—Lining the inner or outer surface of tubular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F17C1/06—Protecting sheathings built-up from wound-on bands or filamentary material, e.g. wires
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
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- B29C2045/0027—Gate or gate mark locations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1703—Introducing an auxiliary fluid into the mould
- B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7154—Barrels, drums, tuns, vats
- B29L2031/7156—Pressure vessels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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
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- F17C2201/0109—Shape cylindrical with exteriorly curved end-piece
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F17C2201/05—Size
- F17C2201/056—Small (<1 m3)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/01—Reinforcing or suspension means
- F17C2203/011—Reinforcing means
- F17C2203/013—Reinforcing means in the vessel, e.g. columns
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/0602—Wall structures; Special features thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
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- F17C2203/0612—Wall structures
- F17C2203/0614—Single wall
- F17C2203/0619—Single wall with two layers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
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- F17C2203/0658—Synthetics
- F17C2203/0663—Synthetics in form of fibers or filaments
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0305—Bosses, e.g. boss collars
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0388—Arrangement of valves, regulators, filters
- F17C2205/0394—Arrangement of valves, regulators, filters in direct contact with the pressure vessel
- F17C2205/0397—Arrangement of valves, regulators, filters in direct contact with the pressure vessel on both sides of the pressure vessel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/21—Shaping processes
- F17C2209/2109—Moulding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2209/00—Vessel construction, in particular methods of manufacturing
- F17C2209/22—Assembling processes
- F17C2209/221—Welding
- F17C2209/222—Welding by friction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/012—Hydrogen
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
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- 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)
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
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- F17C2270/0165—Applications for fluid transport or storage on the road
- F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
Definitions
- the present invention relates to a pressure vessel liner and a method for manufacturing a pressure vessel liner.
- Patent Literature 1 discloses a resin pressure vessel liner provided inside the pressure vessel.
- the pressure vessel liner according to Patent Document 1 is formed by joining a pair of bottomed cylindrical first liner member and bottomless cylindrical second liner member to each other. By interposing the bottomless cylindrical second liner member between the pair of first liner members, the size of the pressure vessel can be increased.
- the second liner member is molded, for example, by injection molding.
- the pressure vessel has a reinforcing layer made of fiber reinforced resin around the pressure vessel liner. Since a small amount of gas permeates the pressure vessel from the pressure vessel liner to the outside, an external pressure P2 acts from the outside of the pressure vessel liner toward the inside (from between the pressure vessel liner and the reinforcing layer). Normally, the internal pressure P1 acts from the inside to the outside of the pressure vessel liner, and since the internal pressure P1>the external pressure P2, there is no particular problem. However, depending on the conditions, the internal pressure P1 ⁇ the external pressure P2 may be satisfied, and buckling may occur in which the pressure vessel liner is recessed from the outside toward the inside. The buckling is likely to occur in a large pressure vessel formed with a second liner member interposed therebetween.
- the object of the present invention is to provide a pressure vessel liner capable of increasing strength and a method for manufacturing the pressure vessel liner.
- the present invention provides a resin pressure vessel liner comprising a pair of a bottomed cylindrical first liner member and a bottomless cylindrical second liner member joined together,
- the second liner member is characterized in that the thickness gradually decreases from the central portion toward the joint portions at both ends in the axial direction.
- the present invention includes a forming step of forming a pair of a bottomed tubular first liner member and a bottomless tubular second liner member, and forming the first liner members on both ends of the second liner member.
- the second liner member is formed by pouring a resin so that the thickness gradually decreases from the center portion of the cavity provided in the mold toward both ends in the axial direction. It is characterized by molding.
- the thickness of the second liner member gradually decreases from the central portion toward both ends in the axial direction. It is possible to improve the molding accuracy of both ends of the liner member in the axial direction. As a result, the step (diameter difference) at the joint between the first liner member and the second liner member can be eliminated or reduced, so stress concentration at the joint can be avoided and the strength can be increased. In addition, it is possible to suppress deterioration in quality due to rubbing between the molded article and the molding die at the time of mold release, so that the mold can be easily released.
- a reinforcing rib is formed along the inner peripheral surface of the central portion of the second liner member.
- the reinforcing ribs are formed, the occurrence of buckling can be prevented.
- the present invention also provides a resin-made pressure vessel liner comprising a pair of a bottomed tubular first liner member and a bottomless tubular second liner member joined together, wherein the second liner member is A reinforcing rib is formed in the central portion over the inner peripheral surface of the second liner member.
- the reinforcing ribs are formed, the occurrence of buckling can be prevented.
- the reinforcing rib has a ring shape.
- uniform reinforcement can be achieved in the circumferential direction.
- the strength of the pressure vessel liner can be increased.
- FIG. 4 is a side cross-sectional view showing a molding step of a second liner member in the method of manufacturing a pressure vessel liner according to the present embodiment
- FIG. 4 is a side cross-sectional view showing a state in which surplus pieces are cut off in the molding step of the method of manufacturing the pressure vessel liner according to the present embodiment
- FIG. 5 is a side cross-sectional view showing a conventional molding process for a second liner member
- FIG. 5 is a perspective view showing a first modified example of the second liner member according to the present embodiment
- FIG. 11 is a perspective view showing a second modified example of the second liner member according to the present embodiment
- FIG. 11 is a perspective view showing a third modified example of the second liner member according to the present embodiment;
- the pressure vessel 100 includes a hollow pressure vessel liner 1, mouthpieces 11, 11, and a reinforcing layer 30.
- the pressure vessel 100 is a vessel that stores gas such as hydrogen therein.
- the mouthpieces 11 are provided at both left and right ends, and are portions for injecting and discharging gas.
- the reinforcing layer 30 is formed on the outer periphery of the pressure vessel liner 1 and is a layer that reinforces the pressure vessel liner 1 .
- the reinforcing layer 30 is made of, for example, fiber-reinforced resin.
- the reinforcing layer 30 is formed by winding reinforcing fibers (not shown) impregnated with a thermosetting resin around the pressure vessel liner 1 and curing the thermosetting resin.
- Glass fiber, carbon fiber, aramid fiber, or the like, for example, can be used as the reinforcing fiber of the reinforcing layer 30 .
- the pressure vessel liner 1 includes resin first liner members 10 and 10 and a resin second liner member 20 .
- the pressure vessel liner 1 is divided into three parts in the longitudinal direction (horizontal direction in FIG. 1), and is formed by joining first liner members 10, 10 and a second liner member 20 together.
- the inside of the pressure vessel liner 1 serves as a storage space for storing gas.
- the first liner member 10 has a mouthpiece 11 at the top of the dome shape. One end of the first liner member 10 is open and the other end is closed so as to gradually reduce in diameter. That is, the first liner member 10 is formed in a bottomed tubular shape with one end open. It should be noted that the first liner member 10 is not limited to being cylindrical as described above.
- the base 11 is made of metal such as stainless steel, for example. Components such as a valve assembly are connected to the opening of the base 11 .
- the valve assembly connects between the storage space and the external gas flow path.
- the mouthpieces 11 are provided at both ends of the pressure vessel liner 1, but the mouthpieces 11 may be provided at only one end.
- the second liner member 20 is open at both ends in the axial direction and has a cylindrical shape.
- reinforcing ribs 21 are formed along the circumferential direction near the central portion 20a in the axial direction.
- the shape of the second liner member 20 is substantially line-symmetrical with respect to the reinforcing rib 21 .
- the reinforcing rib 21 is ring-shaped in this embodiment.
- the reinforcing rib 21 is continuously formed in the circumferential direction with a constant wall thickness and a constant overhang length.
- the thickness of the second liner member 20 is the thickest in the vicinity of the central portion 20a, and gradually becomes thinner toward the ends 20b, 20b on both sides in the axial direction.
- the first liner members 10, 10 and the second liner member 20 are joined together at joints A, A with their ends facing each other.
- the joints A, A are formed along the circumferential direction.
- the form of joining is not particularly limited, but in this embodiment, they are joined by welding.
- first liner member 10 and the second liner member 20 are each molded by injection molding.
- the first liner members 10, 10 are molded using a first liner member molding die (not shown).
- the second liner member 20 is molded using a mold 40 for the second liner member.
- the second liner member molding die 40 is composed of a concave first molding die 41 and a convex second molding die 42 . By fitting the second mold 42 to the first mold 41, the cavity 22 and the gate 23 are formed.
- the cavity 22 is a part that becomes a cylindrical space.
- the distances L, L from the axial center to both ends of the cavity 22 are equal.
- the cavity 22 has a thickness (height of the space) that gradually decreases from the central portion to both ends.
- the outer diameter of cavity 22 is constant in the axial direction.
- the inner diameter of the cavity 22 gradually increases from the central portion toward both ends in the axial direction. That is, the inner peripheral surface 22b of the cavity 22 is inclined so as to gradually approach the outer peripheral surface 22a from the central portion toward both ends.
- the gate 23 is a portion for injecting molten resin into the cavity 22 .
- the gate 23 is composed of a linear portion 23a and a disk portion 23b.
- the linear portion 23a is a linear space portion.
- the disk portion 23b is a disk-shaped space that is continuous with the tip of the straight portion 23a.
- the disk portion 23b is perpendicular to the straight portion 23a. Further, the outer peripheral edge of the disk portion 23b communicates with the central portion of the cavity 22. As shown in FIG.
- the molten resin is allowed to flow from the straight portion 23a of the gate 23 as indicated by the arrow in FIG.
- the disk portion 23b, the central portion of the cavity 22, and both ends of the cavity 22 are filled with the molten resin in this order.
- the mold 40 for the second liner member is demolded, and the molded product is taken out.
- the second liner member 20 is completed by cutting off the surplus piece 51 from the molding.
- the redundant piece 51 has a T-shaped cross section. In the cutting step, while leaving the outer peripheral edge of the portion formed by the disk portion 23b, the remaining portion is circularly cut out of the molding.
- the outer diameter of the outer peripheral surface 20c of the second liner member 20 is constant in the axial direction.
- the inner diameter of the inner peripheral surface 20d of the second liner member 20 gradually increases from the central portion 20a toward both ends 20b, 20b.
- first liner members 10, 10 and the second liner member 20 are joined.
- the form of joining is not particularly limited, but in this embodiment, joining is performed by welding (vibration welding).
- welding vibration welding
- the ends of the first liner member 10 and the second liner member 20 are joined at the joining portion A along the circumferential direction.
- the pressure vessel liner 1 is formed.
- the method of manufacturing the pressure vessel liner is not limited to the method described above.
- injection molding was exemplified as the molding process, other molding methods such as rotational molding and blow molding may be used.
- the conventional molding method uses a second liner member molding die 40A that includes a concave first molding die 41A and a convex second molding die 42A.
- a gate 23A for injecting molten resin is set near one end of the cavity 22A. Therefore, it is difficult to maintain a constant holding pressure between the end of the cavity 22A far from the gate 23A and the end of the cavity 22A near the gate 23A. was there. As a result, when joining with the first liner member, there is a problem that a step is generated and the strength is lowered.
- the thickness of the second liner member 20 gradually decreases from the central portion 20a toward both ends in the axial direction. It is possible to make the holding pressure of the second liner member 20 uniform, and to improve the molding accuracy of both ends of the second liner member 20 in the axial direction. As a result, the step (diameter difference) at the joint A between the first liner member 10 and the second liner member 20 can be eliminated or reduced, so stress concentration at the joint A can be avoided and the strength can be increased. can be done.
- the molded product is released from the second liner member mold 40 . At that time, the molded product can be easily taken out, and the molding accuracy can be improved. Further, since the reinforcing rib 21 is formed along the inner peripheral surface at the central portion of the second liner member 20, the strength of the pressure vessel liner 1 can be increased and the occurrence of buckling can be prevented. can.
- reinforcing ribs 21 are ring-shaped and are provided uniformly over the circumferential direction of the second liner member 20, stress concentration can be avoided and reinforcement can be performed in a well-balanced manner.
- the reinforcing ribs 21 can be formed using the gates 23 . This eliminates the need for a separate step of forming the reinforcing ribs 21, thus reducing the number of working steps.
- a reinforcing rib 21A according to the first modification has a small circular hole 21a in the center and a plurality of large circular holes 21b on the top, bottom, left, and right of the hole.
- a reinforcing rib 21B according to the second modification has four evenly distributed small circular holes 21a in addition to the first modification shown in FIG.
- a reinforcing rib 21C according to the third modification has a small circular hole 21a in the center and a plurality of fan-shaped holes 21c of the same shape around it.
- the reinforcing ribs 21 may be appropriately set in consideration of the arrangement balance and the flow of the gas stored inside.
- the shape of the reinforcing rib 21 shown in the embodiment is an example, and does not limit the present invention.
- the holes in which the reinforcing ribs 21 are provided may be square or may have a slit-like gap, or may not have a small hole in the center.
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Abstract
Description
また、本発明は、一対の有底筒状の第1ライナー部材及び無底筒状の第2ライナー部材をそれぞれ成形する成形工程と、前記第2ライナー部材の両端に各前記第1ライナー部材をそれぞれ接合する接合工程と、を含み、前記成形工程では、成形型に設けられたキャビティの中央部から軸方向両端へ向けて肉厚が徐々に薄くなるように樹脂を流し込み前記第2ライナー部材を成形することを特徴とする。
以下、添付した図面を参照し、本発明の実施形態について説明する。なお、図面の説明において、同一の要素には同一の符号を付し、重複する説明は、適宜省略する。以下の説明において、「前後」、「左右」、「上下」は、図1,図2の矢印に従う。
図1に示すように第1ライナー部材10は、ドーム状の頂上箇所に口金11を備えている。第1ライナー部材10の一端は開口しており、他端は漸次的に縮径するように閉塞している。すなわち、第1ライナー部材10は、一端側が開口した有底筒状に形成されている。なお、第1ライナー部材10は、上述したように円筒状に形成される場合に限定されるものではない。
図2に示すように第2ライナー部材20は、軸方向の両端側が開口しており、円筒状を呈する。第2ライナー部材20は、内周面において、軸方向の中央部20a付近に周方向に沿って補強リブ21が形成されている。第2ライナー部材20の形状は、補強リブ21を中心に概ね線対称になっている。補強リブ21は、本実施形態ではリング状になっている。補強リブ21は、一定の肉厚及び一定の張り出し長さで周方向に亘って連続して形成されている。
続いて、圧力容器用ライナーの製造方法について説明する。本実施形態に係る圧力容器用ライナーの製造方法では、成形工程と接合工程とを行う。
ここで、従来の圧力容器用ライナーの無底筒状の第2ライナー部材の成形方法について説明する。図5に示すように、従来の成形方法では、凹型となる第1成形型41Aと、凸型となる第2成形型42Aとを備えた第2ライナー部材用成形型40Aを用いていた。第2ライナー部材用成形型40Aは、溶融樹脂を注入するゲート23Aが、キャビティ22Aの一方の端部寄りに設定されている。そのため、キャビティ22Aのうち、ゲート23Aから遠い端部と、ゲート23Aから近い端部とで、成形保圧を一定に保つことが難しく、第2ライナー部材の両端の板厚が異なってしまうという問題があった。これにより、第1ライナー部材と接合する際に、段差が発生し、強度が低下するという問題があった。
図6に示すように、第1変形例に係る補強リブ21Aは、中心に円形の小さい穴21aを設け、その上下左右に複数の円形の大きい穴21bを設けている。
また、図7に示すように、第2変形例に係る補強リブ21Bは、図6の第1変形例にさらに円形の小さい穴21aを4つ均等に設けている。
また、図8に示すように、第3変形例に係る補強リブ21Cは、中心に円形の小さい穴21aを設け、その周辺に複数の同形状の扇形状の穴21cを設けている。
1 圧力容器用ライナー
10 第1ライナー部材
20 第2ライナー部材
21 補強リブ
30 補強層
Claims (5)
- 一対の有底筒状の第1ライナー部材及び無底筒状の第2ライナー部材を互いに接合してなる樹脂製の圧力容器用ライナーであって、
前記第2ライナー部材は、中央部から軸方向両端の接合部へ向けて肉厚が徐々に薄くなっていることを特徴とする圧力容器用ライナー。 - 前記第2ライナー部材の中央部には、内周面に亘って補強リブが形成されていることを特徴とする請求項1に記載の圧力容器用ライナー。
- 一対の有底筒状の第1ライナー部材及び無底筒状の第2ライナー部材を互いに接合してなる樹脂製の圧力容器用ライナーであって、
前記第2ライナー部材の中央部には、前記第2ライナー部材の内周面に亘って補強リブが形成されていることを特徴とする圧力容器用ライナー。 - 前記補強リブは、リング状を呈することを特徴とする請求項2又は請求項3に記載の圧力容器用ライナー。
- 一対の有底筒状の第1ライナー部材及び無底筒状の第2ライナー部材をそれぞれ成形する成形工程と、
前記第2ライナー部材の両端に各前記第1ライナー部材をそれぞれ接合する接合工程と、を含み、
前記成形工程では、成形型に設けられたキャビティの中央部から軸方向両端へ向けて肉厚が徐々に薄くなるように樹脂を流し込み前記第2ライナー部材を成形することを特徴とする圧力容器用ライナーの製造方法。
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US18/568,098 US20240263741A1 (en) | 2021-06-09 | 2022-05-31 | Pressure vessel liner and method for manufacturing pressure vessel liner |
EP22820088.7A EP4354012A1 (en) | 2021-06-09 | 2022-05-31 | Pressure vessel liner and method for manufacturing pressure vessel liner |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4394929A (en) * | 1981-04-10 | 1983-07-26 | Union Carbide Corporation | Cryogenic liquid storage container having an improved access conduit |
JP2006242247A (ja) | 2005-03-02 | 2006-09-14 | Toyota Motor Corp | ガス容器およびその製造方法 |
JP2008161247A (ja) * | 2006-12-27 | 2008-07-17 | Asahi Kasei Kuraray Medical Co Ltd | 体液処理器用の筒状容器及び体液処理器 |
JP2011027161A (ja) * | 2009-07-24 | 2011-02-10 | Toyota Motor Corp | 樹脂ライナ、および、流体容器 |
JP2014224602A (ja) * | 2013-04-17 | 2014-12-04 | 豊田合成株式会社 | 圧力容器用ライナー、その成形型、および圧力容器 |
JP2016183709A (ja) * | 2015-03-26 | 2016-10-20 | 株式会社明治ゴム化成 | 高圧ガス貯蔵容器とその製造方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05346197A (ja) * | 1992-06-10 | 1993-12-27 | Kobe Steel Ltd | 繊維強化プラスチック複合圧力容器 |
JP2002188794A (ja) * | 2000-12-21 | 2002-07-05 | Honda Motor Co Ltd | 高圧水素タンクおよび高圧水素タンクの製造方法 |
JP4393155B2 (ja) * | 2003-10-30 | 2010-01-06 | 株式会社豊田自動織機 | 圧力容器 |
US7943884B2 (en) * | 2005-03-02 | 2011-05-17 | Toyota Jidosha Kabushiki Kaisha | Gas container and method of producing the same |
US7901576B2 (en) * | 2007-08-06 | 2011-03-08 | Enpress, L.L.C. | Composite water treatment vessel including liquid distributor plates |
FR2922993B1 (fr) * | 2007-10-24 | 2010-02-26 | Michelin Soc Tech | Reservoir de fluide sous pression et methode de fabrication d'un tel reservoir. |
CA2845724C (en) * | 2011-08-22 | 2017-08-29 | Tranzgaz Inc. | Method of fabricating type 4 cylinders and arranging in transportation housings for transport of gaseous fluids |
JP6468174B2 (ja) * | 2015-12-09 | 2019-02-13 | トヨタ自動車株式会社 | 高圧タンク |
US10816138B2 (en) * | 2017-09-15 | 2020-10-27 | Goodrich Corporation | Manufacture of a conformable pressure vessel |
CN113733450B (zh) * | 2021-09-08 | 2023-03-31 | 亚普汽车部件股份有限公司 | 一种高压复合储氢瓶的焊接塑料内胆结构及成型工艺 |
-
2022
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4394929A (en) * | 1981-04-10 | 1983-07-26 | Union Carbide Corporation | Cryogenic liquid storage container having an improved access conduit |
JP2006242247A (ja) | 2005-03-02 | 2006-09-14 | Toyota Motor Corp | ガス容器およびその製造方法 |
JP2008161247A (ja) * | 2006-12-27 | 2008-07-17 | Asahi Kasei Kuraray Medical Co Ltd | 体液処理器用の筒状容器及び体液処理器 |
JP2011027161A (ja) * | 2009-07-24 | 2011-02-10 | Toyota Motor Corp | 樹脂ライナ、および、流体容器 |
JP2014224602A (ja) * | 2013-04-17 | 2014-12-04 | 豊田合成株式会社 | 圧力容器用ライナー、その成形型、および圧力容器 |
JP2016183709A (ja) * | 2015-03-26 | 2016-10-20 | 株式会社明治ゴム化成 | 高圧ガス貯蔵容器とその製造方法 |
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