CN114165723B - Can and method for manufacturing can - Google Patents

Can and method for manufacturing can Download PDF

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Publication number
CN114165723B
CN114165723B CN202110643097.8A CN202110643097A CN114165723B CN 114165723 B CN114165723 B CN 114165723B CN 202110643097 A CN202110643097 A CN 202110643097A CN 114165723 B CN114165723 B CN 114165723B
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CN
China
Prior art keywords
layer
annular
spiral
reinforcing
reinforcing layer
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Active
Application number
CN202110643097.8A
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Chinese (zh)
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CN114165723A (en
Inventor
金井大弥
古泽照宜
李相根
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Toyota Motor Corp
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Toyota Motor Corp
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Publication of CN114165723A publication Critical patent/CN114165723A/en
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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
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • 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
    • F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
    • F17C1/04—Protecting sheathings
    • F17C1/06—Protecting sheathings built-up from wound-on bands or filamentary material, e.g. wires
    • 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
    • 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
    • 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
    • F17C2203/0621—Single wall with three layers
    • 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
    • F17C2203/0646—Aluminium
    • 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
    • F17C2203/066—Plastics
    • 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
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • 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
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F17C2203/067—Synthetics in form of fibers or filaments helically wound
    • 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
    • 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
    • F17C2209/2154—Winding
    • 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
    • F17C2209/219—Working processes for non metal materials, e.g. extruding
    • 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
    • F17C2209/227—Assembling processes by adhesive means
    • 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
    • F17C2209/00—Vessel construction, in particular methods of manufacturing
    • F17C2209/23—Manufacturing of particular parts or at special locations
    • F17C2209/234—Manufacturing of particular parts or at special locations of closing end pieces, e.g. caps
    • 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
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0184—Fuel cells
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

The present disclosure relates to a can and a method for manufacturing the can, wherein the can of the present invention comprises: a liner having a cylindrical portion and dome portions disposed at both ends of the cylindrical portion; a reinforcing layer disposed on the liner, formed of CFRP, and having a spiral layer composed of carbon fibers and a1 st annular layer which is in contact with the outer surface of the spiral layer and composed of carbon fibers and constitutes the outermost layer of the reinforcing layer; and a protective layer which is disposed on a portion of the reinforcing layer located on the cylindrical portion, is formed of GFRP, has a2 nd annular layer which is in contact with the 1 st annular layer and is composed of glass fibers, and does not have a spiral layer composed of glass fibers.

Description

Can and method for manufacturing can
Technical Field
The present disclosure relates to cans and methods of manufacturing cans.
Background
As a tank for storing a fluid, a tank including: a liner forming a space for storing a fluid; a reinforcing layer disposed on the liner and formed of CFRP (Carbon Fiber Reinforced Plastics: carbon fiber reinforced resin); and a protective layer disposed on the reinforcing layer and formed of GFRP (Glass Fiber Reinforced Plastics: glass fiber reinforced resin). In japanese patent application laid-open publication 2019-219025, as the protective layer, the following layers are formed, the layers having: a spiral layer formed of spirally wound glass fibers; and an annular layer formed on the spiral layer and formed of glass fiber wound in an annular shape.
In the case where a plurality of cracks are generated on the surface of the protective layer at the time of gas filling due to aging or the like and respectively spread toward the inside, rolling up of the protective layer may occur. For example, in a can provided with a protective layer having the structure of japanese patent application laid-open No. 2019-219025, the extension of each crack is stopped at the boundary between the annular layer formed of glass fiber and the spiral layer, and interlayer peeling may occur starting from the tip of each crack. Since GFRP is more likely to undergo stress corrosion cracking than CFRP, the cracking and interlayer peeling may interact with each other to cause the protective layer to roll up. Therefore, a technique capable of suppressing occurrence of rolling up in the protective layer in the case where a crack is generated on the surface of the protective layer is desired.
Disclosure of Invention
The present disclosure can be implemented as follows.
According to one aspect of the present disclosure, a canister is provided. The tank is provided with: a liner having a cylindrical portion and dome portions disposed at both ends of the cylindrical portion; a reinforcing layer disposed on the liner and formed of CFRP, the reinforcing layer having a spiral layer including carbon fibers and a1 st annular layer, the 1 st annular layer being in contact with an outer surface of the spiral layer and including carbon fibers, and the 1 st annular layer constituting an outermost layer of the reinforcing layer; and a protective layer which is disposed on a portion of the reinforcing layer located on the cylindrical portion, and which is formed of GFRP, has a2 nd annular layer which is in contact with the 1 st annular layer and which is made of glass fibers, and does not have a spiral layer made of glass fibers.
According to the can of this embodiment, the protective layer does not have a spiral layer formed by spirally winding glass fibers, and the 1 st annular layer of the reinforcing layer and the 2 nd annular layer of the protective layer in contact with the 1 st annular layer are both formed by annular winding, so that the crack generated on the surface of the protective layer does not stop at the boundary between the 1 st annular layer and the 2 nd annular layer, that is, the boundary between the protective layer and the reinforcing layer, but can be promoted to extend to the boundary between the 1 st annular layer and the spiral layer in the reinforcing layer. This can suppress occurrence of interlayer peeling in the protective layer starting from the tip of each crack, and can suppress occurrence of rolling up of the protective layer when a crack is generated on the surface of the protective layer. Further, since CFRP is less likely to cause stress corrosion cracking than GFRP, even when each crack extends to the boundary between the 1 st annular layer and the spiral layer in the reinforcing layer and interlayer peeling occurs at the boundary, occurrence of rolling up in the reinforcing layer can be suppressed.
(2) The structure may be as follows: in addition to the tank according to the above aspect, a protector is further provided to cover a portion of the reinforcing layer that is disposed above the dome portion. According to the can of this embodiment, since the spiral layer including glass fibers is not provided, the glass fibers can be reduced and the winding time can be shortened as compared with the case of the structure having the spiral layer.
(3) The structure may be as follows: in the tank according to the above aspect, the reinforcing layer further includes a 3 rd annular layer including carbon fibers and located inside the spiral layer. According to the can of this embodiment, the can strength can be improved by providing the 3 rd annular layer on the inner side where the hoop stress is high.
The present disclosure can also be implemented in various ways other than a can. For example, the present invention can be realized by a vehicle on which the tank is mounted, a method of manufacturing the tank, or the like.
Features, advantages, and technical and industrial significance of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings, in which like reference numerals denote like elements
Drawings
Fig. 1 is a schematic cross-sectional view of a can as an embodiment of the present disclosure.
Fig. 2 is an enlarged cross-sectional view of the reinforcing layer and the protective layer disposed on the cylindrical portion.
Fig. 3 is a process diagram showing a method of manufacturing a can.
Detailed Description
A. Embodiments are described below:
A1. overall structure of the tank:
fig. 1 is a schematic cross-sectional view of a can 100 as an embodiment of the present disclosure. Tank 100 is a tank that stores a fluid. In the present embodiment, the tank 100 stores compressed hydrogen as a fluid, and is mounted on a fuel cell vehicle as a hydrogen tank mounting device, for example. Further, fig. 1 and 2 schematically show the respective parts of the tank 100 according to the present disclosure, and thus the dimensions of the respective parts illustrated do not represent specific dimensions.
The can 100 has a can cylindrical portion 102 and a pair of can dome portions 104 as its constituent parts. The can cylindrical portion 102 has a substantially cylindrical shape. The can dome 104 has a generally hemispherical shape having a radius that is the same as the radius of the can cylindrical portion 102. The can dome portions 104 are arranged with their circular openings at both ends of the can cylindrical portion 102 toward the can cylindrical portion 102 side. In fig. 1, the boundary between the tank cylindrical portion 102 and the tank dome portion 104 is indicated by a broken line.
The can 100 includes a liner 10, a reinforcing layer 20, a protective layer 25, a joint 30, a joint 40, and a pair of protectors 50.
Liner 10 forms the innermost layer in tank 100. Liner 10 has a cylindrical portion 12 and a dome portion 14. The cylindrical portion 12 is a part of the tank cylindrical portion 102. Dome portion 14 is a part of can dome portion 104 and is disposed at both ends of cylindrical portion 12. The liner 10 is formed of, for example, a nylon resin (polyamide resin), a synthetic resin such as a polyethylene resin, or a metal such as an aluminum alloy, and in the present embodiment, is formed of nylon. The liner 10 has a property of being blocked so that hydrogen or the like filled into the inner space of the liner 10 does not leak to the outside (so-called gas barrier property).
The joint 30 is disposed on top of a portion of the liner 10 corresponding to one of the pair of dome portions 14. The "top" of dome portion 14 refers to the intersection of dome portion 14 with central axis CA of can 100. The joint 30 has a through hole. The through hole of the joint 30 connects the inside of the can 100 with the outside. A pipe or a valve is attached to the tank 100 via the joint 30.
The joint 40 is disposed on top of a portion of the liner 10 corresponding to the other of the pair of dome portions 14. The joints 30 and 40 also function as attachment portions for attaching the liner 10 to the winding device when the reinforcing layer 20 and the protective layer 25 are formed. The fittings 30, 40 are joined to the liner 10, such as by insert molding.
The protector 50 covers a portion of the reinforcing layer 20 described later, which is disposed above the dome portion 14. The above-mentioned parts are bonded by a moisture-curable adhesive. The protector 50 is, for examplePolyurethane material, thickness of the thickest part is about 30mm, average outer diameterAbout 300 mm.
The reinforcing layer 20 is formed to cover the entire outer surface of the liner 10 and a portion of the joint 30 and a portion of the joint 40. The reinforcing layer 20 functions to strengthen the pressure resistance of the can 100. The reinforcing layer 20 is made of CFRP (Carbon Fiber Reinforced Plastics: carbon fiber reinforced resin) which is a composite material of an epoxy resin and carbon fibers. CFRP is less likely to cause stress corrosion cracking than GFRP described later.
The portion of the reinforcing layer 20 located on the cylindrical portion 12 is covered with a protective layer that contacts the outer surface of the portion. On the other hand, the portion of the reinforcing layer 20 disposed on the dome portion 14 is covered with a protector 50 that contacts the outer surface of the portion.
The diameter of the carbon fibers in the reinforcing layer 20 is smaller than the diameter of glass fibers of the protective layer 25 described later. By such a structure, carbon fibers can be densely arranged in the reinforcing layer 20 than glass fibers of the protective layer 25. Therefore, the pressure resistance of the can 100 can be further enhanced as compared with a configuration in which the diameter of the fibers in the reinforcing layer 20 is equal to or larger than the diameter of the protective layer 25.
The protective layer 25 is disposed on a portion of the reinforcing layer 20 located on the cylindrical portion 12. Specifically, the protective layer 25 is in contact with the outermost layer of the above-described portions. The protective layer 25 is made of GFRP (Glass Fiber Reinforced Plastics: glass fiber reinforced resin) which is a composite material of a thermosetting resin and glass fibers. As a result, the protective layer 25 has higher impact resistance than the reinforcing layer 20.
Fig. 2 is an enlarged cross-sectional view of the reinforcing layer 20 and the protective layer 25 disposed on the cylindrical portion 12. In fig. 1 and 2, the direction of the central axis CA of the can 100 toward the outside is indicated by an arrow Do. Fig. 2 is an explanatory diagram for explaining the technical content, and does not accurately show the dimensions of each part.
The reinforcing layer 20 has a spiral layer 252 and a1 st annular layer 254. Spiral layer 252 and 1 st annular layer 254 are each comprised of CFRP. The thermosetting resins contained in each of the spiral layer 252 and the 1 st annular layer 254 are the same epoxy resin.
A spiral layer 252 is formed over the liner 10. In the present embodiment, the spiral layer 252 is formed to be disposed in contact with the liner 10 and to surround the liner 10. The spiral layer 252 includes a spirally wound carbon fiber C1, and an epoxy resin Re1 fixing the carbon fiber C1. "spiral winding" refers to a winding method of a fiber in which the fiber is wound in an orientation intersecting a plane perpendicular to the central axis CA of the can 100.
The 1 st annular layer 254 is provided in the reinforcing layer 20 at a portion thereof located on the cylindrical portion 12. The 1 st annular layer 254 is located in contact with the outer surface of the spiral layer 252. The 1 st annular layer 254 constitutes the outermost layer of the reinforcing layer 20. The 1 st annular layer 254 includes an annular winding carbon fiber C2, and an epoxy resin Re2 fixing the carbon fiber C2. "annular winding" refers to a method of winding a fiber in a direction substantially parallel to a plane perpendicular to the central axis CA of the tank body.
The protective layer 25 has a2 nd annular layer 256 and a resin layer 258. The 2 nd annular layer 256 is formed of GFRP. The thermosetting resin contained in the 2 nd annular layer 256 is an epoxy resin.
The 2 nd annular layer 256 is disposed on the portion of the protective layer 25 located on the cylindrical portion 12. The 2 nd annular layer 256 is located outside the 1 st annular layer 254 and in contact with the 1 st annular layer 254. The 2 nd annular layer 256 includes an annular wound glass fiber G3, and an epoxy resin Re3 fixing the glass fiber G3. The resin layer 258 is located in contact with the outer side of the 2 nd annular layer 256. The resin layer 258 is a layer without fibers, and is formed by, for example, moving the epoxy resin Re3 in the 2 nd annular layer 256 on the inner side toward the resin layer 258.
If the filling and release of the gas are repeated, a crack CR as shown in fig. 2 may occur. The crack CR is a crack that is generated starting from the outer surface of the protective layer 25 and extends inward, and is also called a so-called "lateral crack". The extension into the inside thereof does not stop at the boundary of the protective layer 25 and the reinforcing layer 20. This is because the winding method of the fibers is the same annular winding for both the innermost layer of the protective layer 25 and the outermost layer of the reinforcing layer 20, and the winding angles of the fibers are almost the same as each other. As a result, interlayer peeling that may occur starting from the tip of the crack CR is suppressed, and rolling up in the protective layer 25 is suppressed.
The crack CR breaks through the boundary between the protective layer 25 and the reinforcing layer 20 and extends into the 1 st annular layer 254. The extension in the interior of the 1 st annular layer 254 described above stops at the boundary of the 1 st annular layer 254 and the spiral layer 252 in the reinforcing layer 20. This is because the winding angle of the fiber differs between the 1 st annular layer 254 and the spiral layer 252 due to the winding method of the fiber. As a result, the tip of the crack CR is located at the boundary between the 1 st annular layer 254 and the spiral layer 252, and thus interlayer peeling may occur starting from the tip of the crack CR. However, even when the interlayer peeling described above occurs, since the CFRP is less likely to cause stress corrosion cracking than the GFRP, the occurrence of rolling-up in the reinforcing layer 20 due to interaction between the interlayer peeling and the stress corrosion cracking is suppressed.
A2. The manufacturing method of the tank comprises the following steps:
fig. 3 is a process diagram showing a method of manufacturing the can 100. First, the liner 10 in a state where the joint 30 and the joint 40 are attached is prepared (step P10).
The reinforcing layer 20 is formed of CFRP on the liner 10 (step P20). The reinforcing layer forming step P20 includes a step P22 and a step P24.
In step P22, the carbon fiber is spirally wound on the liner 10 to form the spiral layer 252. More specifically, the carbon fiber C1 impregnated with the epoxy resin Re1 is spirally wound on the liner 10 by a winding device. At this time, the carbon fiber C1 is wound around the cylindrical portion 12 and the dome portion 14 (see fig. 1). As a result, the spiral layer 252 is formed on the cylindrical portion 12 and the dome portion 14. In the step P22, the epoxy resin Re1 included in the spiral layer 252 is not cured.
In step P24, carbon fibers are wound in a ring shape by contact with the outer surface of the spiral layer 252 located on the cylindrical portion 12, thereby forming the 1 st annular layer 254 which is the outermost layer of the reinforcing layer 20. More specifically, the carbon fiber C2 impregnated with the epoxy resin Re2 is wound around the spiral layer 252 in a loop shape by a winding device. As a result, the 1 st annular layer 254 is formed on the cylindrical portion 12. In addition, at the stage of the step P24, the epoxy resin Re2 contained in the 1 st annular layer 254 is not cured.
A protective layer 25 is formed on the portion of the reinforcing layer 20 located on the cylindrical portion 12 (step P30). In the protective layer forming step P30, the glass fiber is wound in a loop by contacting the 1 st loop layer 254, thereby forming the 2 nd loop layer 256. More specifically, the glass fiber impregnated with the epoxy resin Re3 is wound on the 1 st annular layer 254 by a winding device, thereby forming the protective layer 25. In the step P30, the epoxy resin Re3 included in the protective layer 25 is not cured.
The epoxy resin contained in the reinforcing layer 20 and the protective layer 25 is heated to cure the epoxy resin contained in the reinforcing layer 20 and the protective layer 25 (step P40). The resin can be cured by, for example, an induction heating method using an induction heating coil that causes high-frequency induction heating by heating using a heating furnace. The protector 50 is assembled to the portion of the reinforcing layer 20 disposed on the dome portion 14 (step P50), and the can 100 is completed.
According to the can 100 of the present embodiment described above, the 1 st annular layer 254 of the reinforcing layer 20 and the 2 nd annular layer 256 of the protective layer 25 in contact with the 1 st annular layer 254 are both formed by annular winding. Therefore, the crack CR generated on the surface of the protective layer 25 is not stopped at the boundary between the 1 st annular layer 254 and the 2 nd annular layer 256, that is, the boundary between the outermost layer in the reinforcing layer 20 and the innermost layer in the protective layer 25, but can be promoted to extend to the boundary between the 1 st annular layer 254 and the spiral layer 252 in the reinforcing layer 20. This can suppress interlayer peeling of the protective layer 25 starting from the tip of the crack CR, and can suppress rolling up of the protective layer 25 when the crack is generated on the surface of the protective layer 25. Further, since CFRP is less likely to cause stress corrosion cracking than GFRP, even when crack CR extends to the boundary between 1 st annular layer 254 and spiral layer 252 in reinforcing layer 20 and interlayer peeling occurs at the boundary, occurrence of rolling up in reinforcing layer 20 can be suppressed. Accordingly, when a crack is generated on the surface of the protective layer 25, the protective layer 25 and the reinforcing layer 20 can be prevented from rolling up.
The can 100 of the present embodiment is provided with the protector 50 covering the portion of the reinforcing layer 20 disposed on the dome portion 14, and does not have a spiral layer composed of glass fibers. Therefore, compared with the structure having the spiral layer, the reduction of the glass fiber and the shortening of the winding time can be realized.
B. Other embodiments:
(B1) In the can 100 of the above embodiment, the innermost layer of the reinforcing layer 20 is the spiral layer 252, but the present disclosure is not limited thereto. The reinforcing layer 20 may further have a 3 rd annular layer located inside the spiral layer 252 and including carbon fibers. When the tank 100 is filled with a gas to apply an internal pressure, the highest stress input to the tank 100 is hoop stress, and the fiber strength is only developed in the fiber direction, so that the annular layer mainly functions for hoop stress. Therefore, by forming the 3 rd annular layer at a position which is more inward than the spiral layer 252 and has higher circumferential stress, can strength can be improved. In the above-described structure, the annular layer and the spiral layer may be alternately formed repeatedly a predetermined number of times.
(B2) In the can 100 of the above embodiment, the portion of the reinforcing layer 20 disposed on the dome portion 14 is covered with the protector 50, but may not be covered with the protector 50. In addition, the above-described portion may have a spiral layer formed by spirally winding glass fibers as the protective layer 25 instead of the protector 50.
The present disclosure is not limited to the above-described embodiments, and can be realized by various configurations within a range not departing from the gist thereof. For example, in order to solve some or all of the problems described above, or in order to achieve some or all of the effects described above, the technical features of the embodiments corresponding to the technical features of the embodiments described in the summary of the invention can be appropriately replaced or combined. In addition, the present invention can be appropriately deleted unless the technical features are described as necessary in the present specification.

Claims (4)

1. A tank, wherein the tank is configured to be placed in a container,
the tank is provided with:
a liner having a cylindrical portion and dome portions disposed at both ends of the cylindrical portion;
a reinforcing layer disposed on the liner and formed of CFRP, the reinforcing layer having a spiral layer including carbon fibers and a1 st annular layer, the 1 st annular layer being in contact with an outer surface of the spiral layer and including carbon fibers and constituting an outermost layer of the reinforcing layer; and
and a protective layer which is disposed on a portion of the reinforcing layer located on the cylindrical portion and is formed of GFRP, wherein the protective layer has a2 nd annular layer which is in contact with the 1 st annular layer and is made of glass fibers, and does not have a spiral layer made of glass fibers.
2. The canister of claim 1, wherein,
the reinforcing layer is provided with a protective member covering a portion of the reinforcing layer which is disposed above the dome portion.
3. Tank according to claim 1 or 2, wherein,
the reinforcing layer further has a 3 rd annular layer located on the inner side of the spiral layer and including carbon fibers.
4. A can manufacturing method according to any one of claims 1 to 3, wherein,
the method for manufacturing the tank comprises the following steps:
a reinforcing layer forming step of forming the reinforcing layer, wherein the reinforcing layer forming step includes a step of forming a spiral layer by spirally winding carbon fibers, and a step of forming the 1 st annular layer constituting the outermost layer of the reinforcing layer by annularly winding carbon fibers; and
and a protective layer forming step of forming the protective layer, wherein the 2 nd annular layer is formed by contacting the 1 st annular layer and winding glass fiber in an annular shape.
CN202110643097.8A 2020-09-11 2021-06-09 Can and method for manufacturing can Active CN114165723B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203023785U (en) * 2012-12-12 2013-06-26 沈阳斯林达安科新技术有限公司 Fluorescence composite winding gas cylinder
CN104023950A (en) * 2011-12-28 2014-09-03 丰田自动车株式会社 Tank and manufacturing method therefor
CN204420556U (en) * 2014-12-30 2015-06-24 沈阳斯林达安科新技术有限公司 With location, bottom and the composite cylinder of detaching structure
CN108368968A (en) * 2015-12-22 2018-08-03 霓达株式会社 The manufacturing method of high-pressure bottle and high-pressure bottle
CN108533945A (en) * 2017-03-03 2018-09-14 丰田自动车株式会社 Pressure pan
CN109073148A (en) * 2016-03-04 2018-12-21 日产自动车株式会社 The manufacturing method of high pressure gas storage container and high pressure gas storage container
CN111594744A (en) * 2019-02-21 2020-08-28 丰田自动车株式会社 High-pressure gas tank and method for manufacturing high-pressure gas tank

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3511751B2 (en) * 1995-09-07 2004-03-29 ダイキン工業株式会社 FRP composite container
JP2011185360A (en) * 2010-03-09 2011-09-22 Toyota Motor Corp Method for manufacturing of high pressure gas tank
JP5116807B2 (en) * 2010-06-15 2013-01-09 本田技研工業株式会社 Pressure vessel
JP6926796B2 (en) * 2017-08-04 2021-08-25 トヨタ自動車株式会社 tank
JP7087907B2 (en) * 2018-10-16 2022-06-21 トヨタ自動車株式会社 Manufacturing method of high pressure tank and high pressure tank
JP7035976B2 (en) * 2018-11-15 2022-03-15 トヨタ自動車株式会社 High pressure tank and its mounting structure
JP2020085095A (en) * 2018-11-21 2020-06-04 トヨタ自動車株式会社 High pressure tank
JP2020142388A (en) * 2019-03-04 2020-09-10 トヨタ自動車株式会社 Method for manufacturing high pressure tank

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104023950A (en) * 2011-12-28 2014-09-03 丰田自动车株式会社 Tank and manufacturing method therefor
CN203023785U (en) * 2012-12-12 2013-06-26 沈阳斯林达安科新技术有限公司 Fluorescence composite winding gas cylinder
CN204420556U (en) * 2014-12-30 2015-06-24 沈阳斯林达安科新技术有限公司 With location, bottom and the composite cylinder of detaching structure
CN108368968A (en) * 2015-12-22 2018-08-03 霓达株式会社 The manufacturing method of high-pressure bottle and high-pressure bottle
CN109073148A (en) * 2016-03-04 2018-12-21 日产自动车株式会社 The manufacturing method of high pressure gas storage container and high pressure gas storage container
CN108533945A (en) * 2017-03-03 2018-09-14 丰田自动车株式会社 Pressure pan
CN111594744A (en) * 2019-02-21 2020-08-28 丰田自动车株式会社 High-pressure gas tank and method for manufacturing high-pressure gas tank

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