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WO2010116529A1 - Réservoir et procédé de fabrication correspondant - Google Patents

Réservoir et procédé de fabrication correspondant Download PDF

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Publication number
WO2010116529A1
WO2010116529A1 PCT/JP2009/057358 JP2009057358W WO2010116529A1 WO 2010116529 A1 WO2010116529 A1 WO 2010116529A1 JP 2009057358 W JP2009057358 W JP 2009057358W WO 2010116529 A1 WO2010116529 A1 WO 2010116529A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
tank
fiber
helical
winding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2009/057358
Other languages
English (en)
Japanese (ja)
Inventor
弘和 大坪
基弘 水野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to PCT/JP2009/057358 priority Critical patent/WO2010116529A1/fr
Publication of WO2010116529A1 publication Critical patent/WO2010116529A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • 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
    • F17C2203/0604—Liners
    • 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
    • F17C2203/0619—Single wall with two 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
    • F17C2203/0658—Synthetics
    • F17C2203/0663—Synthetics in form of fibers or filaments
    • F17C2203/0665—Synthetics in form of fibers or filaments radially 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
    • 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
    • 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
    • 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

Definitions

  • the present invention relates to a tank and a manufacturing method thereof. More specifically, the present invention relates to an improvement in the structure of a tank filled with hydrogen gas or the like at a high pressure.
  • a tank used for storing hydrogen gas or the like As a tank used for storing hydrogen gas or the like, a tank that is provided with an FRP layer in which a plurality of hoop layers and a helical layer are laminated on the outer periphery of the liner and is reduced in weight is used (for example, see Patent Document 1). ).
  • the liner functions as a member that prevents permeation of hydrogen gas and the like and stores it in an airtight manner
  • the FRP layer functions as a member that provides strength to withstand high internal pressure.
  • the hoop layer forming the FRP layer is a layer formed by winding a fiber (for example, carbon fiber) by hoop winding (a method of winding the fiber around the tank axis in the tank body portion). (It is substantially parallel to the tank axis and is wound up to the tank dome.) (See FIG. 2). Further, helical winding can be performed in different manners such as high angle helical winding and low angle helical winding by changing the winding angle with respect to the tank axis. When forming the FRP layer in this manner, how the fibers are wound is an important factor for improving the efficiency of strength expression by the FRP layer.
  • a circumferential fiber layer (hoop layer, high-angle helical layer) and an axial fiber layer (low-angle helical layer) are alternately wound. is there.
  • the fiber coverage is 100% or more.
  • the fiber coverage here refers to the ratio of the one-sided surface area of the fiber wound around the layer to the surface area of the tank body part (surface area of the fiber wound around the layer / body part surface area). It can be determined by x100. The coverage when the entire surface area of the body portion is covered with the minimum necessary fibers is 100%.
  • the tank is a sealed container in which, for example, both ends of a cylindrical main body part are formed in a substantially hemispherical dome part.
  • a substantially hemispherical part is a dome part
  • a cylindrical body part is a body part ( Or straight part).
  • an object of the present invention is to provide a tank that suppresses an increase in the size or mass of the tank due to a fiber layer such as a helical layer, and a manufacturing method thereof.
  • a general method is to form a fiber layer by winding a circumferential fiber layer (hoop layer, high-angle helical layer) and an axial fiber layer (low-angle helical layer) around the liner.
  • a circumferential fiber layer hover layer, high-angle helical layer
  • an axial fiber layer low-angle helical layer
  • the fiber layers are laminated in this way, it is considered that the outer fiber layers are more difficult to fully exhibit the strength of the fibers.
  • the fibers are wound without sufficiently exerting the strength, the amount of fibers is large for the strength, and the tank may have a large physique.
  • the fiber wound on the outer layer side can contribute to an increase in the tank diameter if it is wound many times even though the contribution to the strength is small.
  • the present inventor who has further studied based on such a situation has come to obtain new knowledge that leads to the solution of such problems.
  • the present invention is based on such knowledge, and is a tank having a liner, and a FRP layer composed of a hoop layer and a helical layer formed by winding fibers on the outer periphery of the liner, and depends on the fibers of the helical layer.
  • the cover rate of the tank body is lower on the outer layer side than on the inner layer side of the FRP layer.
  • the layer located on the outer layer side of the tank and the helical layer have a small contribution in terms of fiber strength with respect to the cylindrical body part (tank body part) of the tank. That is, the fiber layer located on the outer layer side or the helical layer at a lower angle is more difficult to exert the strength of the fiber and to tightly wind the body portion of the tank.
  • the helical layer in the cylindrical body part it is possible to exert a fiber strength greater than that of the helical layer. Nevertheless, the uniform coverage by the fibers as in the conventional method is disadvantageous in that it is difficult to obtain sufficient fiber strength for the increased amount of fibers used.
  • the fiber strength generation rate in the helical layer in order to act the force against the tank internal pressure
  • the degree to which the strength of the fiber is generated is effectively improved. In such a case, it is possible to reduce the amount of fiber used while realizing a high fiber strength occurrence rate, and to prevent the tank from becoming larger (larger).
  • the FRP layer can be made thinner and the volume of the tank can be increased.
  • the coverage by the helical layer is continuously reduced. Or it is also preferable that the coverage by a helical layer is decreasing in steps.
  • the rate of decrease in the coverage rate may be constant. Alternatively, the rate of decrease in the coverage rate may change midway.
  • the manufacturing method according to the present invention is a method for manufacturing a tank having a liner and an FRP layer comprising a hoop layer and a helical layer formed by winding fibers on the outer periphery of the liner.
  • the coverage of the tank body by the helical layer is made lower on the outer layer side than on the inner layer side of the FRP layer.
  • the present invention it is an object to provide a tank and a method for manufacturing the same in which the physique or mass of the tank is prevented from being increased by fibers such as a helical layer.
  • FIG. 1 to 9 show an embodiment of a tank and a manufacturing method thereof according to the present invention. Below, it demonstrates, exemplifying the case where the tank (high pressure tank) 1 concerning this invention is applied to the high pressure hydrogen tank as a hydrogen fuel supply source.
  • the hydrogen tank can be used in a fuel cell system or the like.
  • the tank 1 includes, for example, a cylindrical tank body 10 having both ends substantially hemispherical, and a base 11 attached to one end of the tank body 10 in the longitudinal direction.
  • the substantially hemispherical portion is referred to as a dome portion
  • the cylindrical body portion is referred to as a straight portion, which are denoted by reference numerals 1d and 1s, respectively (see FIGS. 1 and 2).
  • the tank 1 shown in this embodiment has the caps 11 at both ends, for the sake of convenience of explanation, the forward direction of the X axis (direction indicated by the arrow) in FIG. The side and the negative direction will be described as the base end side.
  • the positive direction (the direction indicated by the arrow) of the Y axis perpendicular to the X axis indicates the tank outer peripheral side.
  • the tank body 10 has, for example, a two-layer wall layer, and has a liner 20 that is an inner wall layer and, for example, an FRP layer 21 that is a resin fiber layer (reinforcing layer) that is an outer wall layer on the outer side.
  • the FRP layer 21 is formed of, for example, only the CFRP layer 21c, or the CFRP layer 21c and the GFRP layer 21g (see FIG. 1).
  • the liner 20 is formed in substantially the same shape as the tank body 10.
  • the liner 20 is made of, for example, polyethylene resin, polypropylene resin, or other hard resin.
  • the liner 20 may be a metal liner formed of aluminum or the like.
  • a folded portion 30 that is bent inward is formed on the tip end side of the liner 20 having the base 11.
  • the folded portion 30 is folded toward the inside of the tank body 10 so as to be separated from the outer FRP layer 21.
  • the folded portion 30 has, for example, a reduced diameter portion 30a that gradually decreases in diameter as it approaches the folded tip, and a cylindrical portion 30b that is connected to the distal end of the reduced diameter portion 30a and has a constant diameter.
  • the cylindrical portion 30b forms an opening of the liner 20.
  • the base 11 has a substantially cylindrical shape and is fitted into the opening of the liner 20.
  • the base 11 is made of, for example, aluminum or an aluminum alloy, and is manufactured in a predetermined shape by, for example, a die casting method.
  • the base 11 is fitted into an injection-molded split liner. Further, the base 11 may be attached to the liner 20 by insert molding, for example.
  • the base 11 has a valve fastening seat surface 11a formed on the tip side (outside in the axial direction of the high pressure tank 1), for example, and on the rear side (inside in the axial direction of the high pressure tank 1) of the valve fastening seat surface 11a.
  • An annular recess 11 b is formed with respect to the axis of the high-pressure tank 1.
  • the dent 11b is convexly curved on the shaft side and has an R shape.
  • the vicinity of the tip of the R-shaped FRP layer 21 is in airtight contact with the recess 11b.
  • the surface of the recess 11b that contacts the FRP layer 21 is provided with a solid lubricating coating C such as a fluorine-based resin. Thereby, the friction coefficient between the FRP layer 21 and the recessed part 11b is reduced.
  • the rear side of the recessed portion 11b of the base 11 is formed to fit, for example, the shape of the folded portion 30 of the liner 20, and for example, a flange portion (crest portion) 11c having a large diameter is formed continuously from the recessed portion 11b.
  • a cap cylindrical portion 11d having a constant diameter is formed rearward from the flange portion 11c.
  • the reduced diameter portion 30a of the folded portion 30 of the liner 20 is in close contact with the surface of the flange portion 11c, and the cylindrical portion 30b is in close contact with the surface of the cap cylindrical portion 11d. Seal members 40 and 41 are interposed between the cylindrical portion 30b and the base cylindrical portion 11d.
  • the valve assembly 50 controls the supply and discharge of the fuel gas between the external gas supply line (supply path 22) and the inside of the tank 1. Seal members 60 and 61 are interposed between the outer peripheral surface of the bubble assembly 50 and the inner peripheral surface of the base 11.
  • the FRP layer 21 is formed by, for example, FW molding (filament winding molding), winding a resin-impregnated fiber (reinforcing fiber) 70 around the outer peripheral surface of the liner 20 and the recess 11b of the base 11 and curing the resin.
  • FW molding filament winding molding
  • resin-impregnated fiber (reinforcing fiber) 70 around the outer peripheral surface of the liner 20 and the recess 11b of the base 11 and curing the resin.
  • the resin of the FRP layer 21 for example, an epoxy resin, a modified epoxy resin, an unsaturated polyester resin, or the like is used.
  • the fiber 70 carbon fiber (CF), metal fiber, or the like is used.
  • the outer periphery of the liner 20 is moved by moving the guide of the fiber 70 along the tank axis direction while rotating the liner 20 around the tank axis (indicated by reference numeral 12 in FIGS.
  • the fiber 70 can be wound around.
  • a fiber bundle in which a plurality of fibers 70 are bundled is generally wound around the liner 20.
  • the fiber bundle is simply referred to as a fiber including the case of a fiber bundle.
  • the FW device 80 shown in FIGS. 8 and 9 reciprocates the guide device (referred to as “eye opening”) 81 of the fiber 70 along the tank axial direction while rotating the liner 20 around the tank shaft 12.
  • the fiber 70 is wound around the outer periphery of the liner 20.
  • the winding angle of the fiber 70 can be changed by changing the relative speed of the movement of the guide device 81 with respect to the rotational speed of the liner 20.
  • the guide device 81 is operably supported by a jig, for example.
  • the tank 1 is formed by winding a fiber (for example, carbon fiber) 70 around the outer periphery of the liner 20 and curing the resin.
  • a fiber for example, carbon fiber
  • the low-angle helical layer 70HL) is formed.
  • the fiber 70 is wound around the straight portion (tank body portion) 1 s of the tank 1 like a coil spring to tighten the portion, and the force in the positive direction of the Y axis by the gas pressure (outward in the radial direction) A force to counteract the force to spread) is applied to the liner 20.
  • the latter helical winding is a winding method whose main purpose is to fasten the dome portion 1d, and the fiber 70 is entirely wound around the tank 1 so as to be caught by the dome portion 1d. This contributes to improving the strength of the portion 1d.
  • an acute angle (of which an acute angle is formed) between a string 70 of a fiber 70 wound like a coil spring (a thread line in a screw) and a center line of the tank 1 (tank shaft 12). 2) is the “winding angle with respect to the tank shaft (12)” of the fiber 70 referred to in the present specification, which is indicated by the symbol ⁇ in FIG.
  • the hoop winding is a method in which the fiber 70 is wound substantially perpendicularly to the tank shaft 12 in the straight portion, and a specific winding angle at that time is, for example, 80 to 90 ° (see FIG. 2). ).
  • Helical winding (or impeller winding) is a winding method in which the fibers 70 are wound around the dome portion, and the winding angle with respect to the tank shaft 12 is smaller than that in the case of hoop winding (see FIG. 2). If the helical winding is roughly divided into two types, there are two types: high angle helical winding and low angle helical winding.
  • the high angle helical winding has a relatively large winding angle with respect to the tank shaft 12, and specific examples of the winding angle are as follows. 70 to 80 °.
  • the low-angle helical winding has a relatively small winding angle with respect to the tank shaft 12, and a specific example of the winding angle is 5 to 30 °.
  • the winding angle when the fiber 70 is parallel to the tank shaft 12 is 0 °
  • the winding angle when the fiber 70 is wound around in the circumferential direction is 90 °.
  • the term “low angle helical winding” including helical winding at a winding angle of 0 to 5 ° is referred to.
  • a helical winding at a winding angle of 30 to 70 ° between them may be referred to as a medium angle helical winding.
  • the helical layers formed by the high angle helical winding, the medium angle helical winding, and the low angle helical winding are respectively a high angle helical layer (indicated by reference numeral 70HH), a medium angle helical layer (see FIG. 2), and a low angle helical layer ( This is indicated as 70LH.
  • the folded portion in the tank axial direction in the dome portion 1d of the high angle helical winding is referred to as a folded portion (see FIG. 2).
  • the hoop winding is a winding method that allows the fibers 70 to be wound spirally while adjoining the fibers 70 so that the fibers 70 are not stacked and the unevenness is not generated.
  • the helical winding is generally intended to tighten the dome portion, and it is difficult to reduce the stacking and unevenness of the fibers 70, or sufficient consideration is given to reducing them. There is no winding method.
  • the hoop winding and the helical winding are appropriately combined according to specifications such as the axial length and diameter of the tank 1, and the hoop layer 70P and the helical layer 70H are stacked around the liner 20 (see FIG. 1 and the like).
  • the fiber layer in the helical layer 70H is configured such that the coverage rate by the helical layer 70H with respect to the straight portion (body portion) 1s of the tank 1 is increased toward the inner layer side and gradually decreased toward the outer layer side. The strength generation rate is effectively improved (see FIG. 4 and the like).
  • the fiber 70 that is wound on the outer layer side is particularly concerned. It is difficult to sufficiently exert the strength of the FRP layer 21 with respect to the fiber strength occurrence rate, and as a result, the physique and mass of the tank 1 may increase (FIG. 9). reference).
  • the coverage ratio of the helical layer 70H with respect to the straight portion 1s is increased toward the tank inner layer side (lowered from the tank inner layer side toward the outer layer side) ( (See FIG. 4).
  • the fiber strength occurrence rate in the helical layer 70H can be effectively improved, and as a result, the physique or mass of the tank 1 can be prevented from becoming too large while ensuring the fiber strength occurrence rate. That is, in the present embodiment, the cover rate is optimized so that the FRP layer 21 can be formed thinner than the conventional one while ensuring the fiber strength generation rate (see FIG. 5). It is possible to reduce the size of the entire tank while maintaining (internal capacity), and it is possible to suppress an increase in physique without obtaining sufficient fiber strength (so-called enlargement of the tank 1). . This is particularly effective under the current situation where the tank 1 is required to have a larger size, a higher pressure, and a reduced number of tanks. Further, when the tank 1 is used as, for example, a hydrogen supply tank for a fuel cell vehicle, it can contribute to extending the cruising distance of the vehicle.
  • the aspect of the change in the coverage by the fibers 70 is not particularly limited, and may be gradually reduced from the inner layer to the outer layer of the FRP layer 21 (see FIG. 6) or stepwise. It may be decreased (see FIG. 7). Further, the rate of decrease is not particularly limited, and may be a constant rate or may be changed in the middle. Further, there is no particular limitation as to how much the coverage in the outermost helical layer 70H is to be made.
  • the cover ratio is 50% (as an example, the case where the one-side surface area of the wound fiber 70 and the gap between the fibers 70 are substantially equal as in this embodiment) is exemplified (The cover rate in the outermost layer may be higher or lower than this, and the layer having a cover rate of 50% may be used as an intermediate layer instead of the outermost layer.
  • the fibers 70 are evenly wound in one helical layer 70H (see FIG. 4). By winding so that the intervals between the fibers 70 are equal, the fiber strength generation rate by the fibers 70 can be made more uniform.
  • the fiber 70 is wound so that the covering ratio of the helical layer 70H to the straight portion 1s of the tank 1 with respect to the straight portion 1s of the tank 1 is lower on the outer layer side than the inner layer side of the FRP layer 21, and the fiber strength generation rate is more effective. Therefore, the use efficiency of the fiber 70 is improved. Moreover, it can suppress that the physique or mass of the tank 1 becomes large by this.
  • the present invention can be applied to things other than a tank (pressure vessel), for example, a cylinder (including a cylindrical part) such as a long object or a structure having an FRP layer.
  • a tank pressure vessel
  • a cylinder including a cylindrical part
  • FRP layer 21 having the helical layer 70H or the hoop layer 70P is formed by wrapping the fiber 70 around a mandrel (such as a mandrel) or a mold by helical winding or hoop winding, a hoop layer is formed.
  • the fiber strength of the fiber strength is improved by, for example, arranging 70P on the inner side to form an inner layer, or arranging the fiber folded end portion 70e so as to draw a trajectory that is narrowed toward the outer layer (defined as a set of all points satisfying a certain condition). It is possible to achieve the same operational effects as in the above-described embodiment, such as improving the expression efficiency.
  • Specific examples of the cylinder in the case where the present invention is applied to the cylinder as described above include exercise equipment such as a golf club shaft and carbon bat, leisure equipment such as a fishing rod, engineering products such as plant equipment, and building materials. Can be mentioned.
  • the helical layer 70H is a smooth helical layer to reduce unevenness that may occur in the hoop layer 70P adjacent to the outside.
  • the smooth helical layer 70 ⁇ / b> H is a layer formed by helical winding so as to reduce the overlap of the fibers 70 in the layer, and in principle, the next fiber 70 is aligned next to the adjacent fibers 70. Is wound, and the way the fibers 70 overlap is different from the conventional helical layer (uneven helical layer).
  • the fibers 70 in the hoop layer 70P are formed. Structural bending (undulations) or undulations and undulations can be reduced. That is, since the surface (surface layer) of the smooth helical layer 70H is smoother than the conventional surface, in the hoop layer 70P formed on the smooth surface, the bending (undulation) of the structural fibers 70 caused by unevenness. ) Is reduced.
  • Vf fiber volume
  • the winding start of the liner 20 can be either the fiber 70 forming the helical layer 70H or the fiber 70 forming the hoop layer 70P. In this way, by appropriately changing the fiber 70 at the start of winding, it is possible to set the break start position when the tank 1 should break. As described above, both the helical layer 70H and the hoop layer 70P have a greater contribution to the tank strength as the layer located on the inner side (the layer closer to the liner 20).
  • the break start position becomes the dome portion 1d in advance. It is possible to set.
  • the present invention is suitable when applied to a tank having an FRP layer, and further to a cylindrical body such as a long object or a structure.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

L'invention vise à proposer un réservoir et un procédé de fabrication correspondant qui empêchent la constitution physique ou la masse d'un réservoir d'être accrue par des couches fibreuses, telles que des couches hélicoïdales. Pour réaliser ceci, un réservoir (1) comprend un revêtement interne (20) et une couche de matière plastique renforcée par des fibres (21), qui est réalisée à partir de couches annulaires (70P) et de couches hélicoïdales (70H) qui sont formées par des faisceaux de fibres (70) qui sont enroulés autour de la circonférence externe dudit revêtement interne (20). Le pourcentage de la partie corps (1s) du réservoir (1) recouverte des fibres (70) des couches hélicoïdales (70H) est amené à être inférieur dans les couches externes par rapport aux couches internes de la couche de matière plastique renforcée par des fibres (21). Il est préférable que le pourcentage de couverture des couches hélicoïdales (70H) diminue de façon continue. En variante, il est préférable que le pourcentage de couverture des couches hélicoïdales (70H) diminue d'une manière progressive.
PCT/JP2009/057358 2009-04-10 2009-04-10 Réservoir et procédé de fabrication correspondant Ceased WO2010116529A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2009/057358 WO2010116529A1 (fr) 2009-04-10 2009-04-10 Réservoir et procédé de fabrication correspondant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2009/057358 WO2010116529A1 (fr) 2009-04-10 2009-04-10 Réservoir et procédé de fabrication correspondant

Publications (1)

Publication Number Publication Date
WO2010116529A1 true WO2010116529A1 (fr) 2010-10-14

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180202553A1 (en) * 2017-01-16 2018-07-19 Toyota Jidosha Kabushiki Kaisha Method for producing tank with protective member
US20180290537A1 (en) * 2017-04-07 2018-10-11 Toyota Jidosha Kabushiki Kaisha Tank manufacturing method and tank
CN111438930A (zh) * 2019-01-16 2020-07-24 丰田自动车株式会社 高压罐的制造方法
JP7001041B2 (ja) 2018-11-02 2022-02-03 トヨタ自動車株式会社 高圧タンクの製造方法
US11566752B2 (en) 2020-07-31 2023-01-31 Toyota Jidosha Kabushiki Kaisha High-pressure tank and method for manufacturing high-pressure tank

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54113519A (en) * 1978-02-23 1979-09-05 Kawajiyuu Bousai Kougiyou Kk Pressure container
JPH09203497A (ja) * 1996-01-29 1997-08-05 Mitsubishi Heavy Ind Ltd 複合高圧タンクの製作方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54113519A (en) * 1978-02-23 1979-09-05 Kawajiyuu Bousai Kougiyou Kk Pressure container
JPH09203497A (ja) * 1996-01-29 1997-08-05 Mitsubishi Heavy Ind Ltd 複合高圧タンクの製作方法

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180202553A1 (en) * 2017-01-16 2018-07-19 Toyota Jidosha Kabushiki Kaisha Method for producing tank with protective member
US10907733B2 (en) * 2017-01-16 2021-02-02 Toyota Jidosha Kabushiki Kaisha Method for producing tank with protective member
US20180290537A1 (en) * 2017-04-07 2018-10-11 Toyota Jidosha Kabushiki Kaisha Tank manufacturing method and tank
JP2018179081A (ja) * 2017-04-07 2018-11-15 トヨタ自動車株式会社 タンクの製造方法、および、タンク
US10632836B2 (en) * 2017-04-07 2020-04-28 Toyota Jidosha Kabushiki Kaisha Tank manufacturing method and tank
US20200223307A1 (en) * 2017-04-07 2020-07-16 Toyota Jidosha Kabushiki Kaisha Tank manufacturing method and tank
US11104219B2 (en) 2017-04-07 2021-08-31 Toyota Jidosha Kabushiki Kaisha Tank manufacturing method and tank
JP7001041B2 (ja) 2018-11-02 2022-02-03 トヨタ自動車株式会社 高圧タンクの製造方法
US11285658B2 (en) * 2018-11-02 2022-03-29 Toyota Jidosha Kabushiki Kaisha Manufacturing method for high pressure tank
CN111438930A (zh) * 2019-01-16 2020-07-24 丰田自动车株式会社 高压罐的制造方法
US11566752B2 (en) 2020-07-31 2023-01-31 Toyota Jidosha Kabushiki Kaisha High-pressure tank and method for manufacturing high-pressure tank

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