WO2017149817A1 - 高圧ガス貯蔵容器、および高圧ガス貯蔵容器の製造方法 - Google Patents
高圧ガス貯蔵容器、および高圧ガス貯蔵容器の製造方法 Download PDFInfo
- Publication number
- WO2017149817A1 WO2017149817A1 PCT/JP2016/078928 JP2016078928W WO2017149817A1 WO 2017149817 A1 WO2017149817 A1 WO 2017149817A1 JP 2016078928 W JP2016078928 W JP 2016078928W WO 2017149817 A1 WO2017149817 A1 WO 2017149817A1
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- WIPO (PCT)
- Prior art keywords
- reinforcing member
- plasma
- reinforcing
- pressure gas
- storage container
- Prior art date
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- F17C2203/067—Synthetics in form of fibers or filaments helically wound
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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
- F17C2209/2154—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
- 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
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/01—Improving mechanical properties or manufacturing
- F17C2260/011—Improving strength
-
- 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
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/01—Improving mechanical properties or manufacturing
- F17C2260/012—Reducing weight
-
- 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
- F17C2270/0168—Applications for fluid transport or storage on the road by vehicles
-
- 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
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/1369—Fiber or fibers wound around each other or into a self-sustaining shape [e.g., yarn, braid, fibers shaped around a core, etc.]
Definitions
- the present invention relates to a high-pressure gas storage container and a method for manufacturing a high-pressure gas storage container.
- reinforcing members in which reinforcing fibers are impregnated with resin have attracted attention as automobile parts.
- the reinforcing fiber since the reinforcing fiber has low adhesion to the resin, it is necessary to improve the adhesion of the reinforcing fiber to the resin.
- the surface of the aromatic polyamide fiber is modified and bonded by irradiating the aromatic polyamide fiber with plasma from a direction perpendicular to the fiber arrangement surface.
- a method for improving adhesion has been disclosed to improve the properties.
- the present invention has been made to solve the above-described problems, and provides a high-pressure gas storage container and a method for manufacturing a high-pressure gas storage container that can be reduced in weight while maintaining appropriate strength by a reinforcing member. Objective.
- the high-pressure gas storage container includes a liner that contains high-pressure gas, and a reinforcing layer that is formed by winding a belt-shaped reinforcing member around the outer peripheral surface of the liner.
- the reinforcing member is made of a reinforcing fiber impregnated with resin and at least partially irradiated with plasma.
- a method of manufacturing a high-pressure gas storage container includes a liner that contains high-pressure gas, and a reinforcing layer that is formed by winding a belt-shaped reinforcing member around the outer peripheral surface of the liner. It is a manufacturing method of a gas storage container. In the manufacturing method of the high-pressure gas storage container, at least a part of the reinforcing fiber is irradiated with plasma, the reinforcing fiber is impregnated with resin to form the reinforcing member, and the reinforcing member is wound around the outer peripheral surface of the liner.
- FIG. 1 is a view showing a high-pressure gas storage container 1 according to this embodiment.
- FIG. 2 is a cross-sectional view showing the liner 10 of the high-pressure gas storage container 1.
- FIG. 3 is a cross-sectional view showing a part of the reinforcing member 20 made of the reinforcing fiber 21 impregnated with the resin 22.
- FIG. 1 shows a process in which the reinforcing member 20 is wound around the outer peripheral surface 10 ⁇ / b> A of the liner 10.
- the high-pressure gas storage container 1 has a liner 10 that contains a high-pressure gas such as hydrogen gas, and a belt-shaped reinforcing member 20 wound around an outer peripheral surface 10A of the liner 10 as shown in FIG. And the formed reinforcing layer 30. 3 and 5, the reinforcing member 20 is composed of reinforcing fibers 21 impregnated with resin 22 and irradiated with plasma P.
- a high-pressure gas such as hydrogen gas
- the reinforcing member 20 is composed of reinforcing fibers 21 impregnated with resin 22 and irradiated with plasma P.
- the liner 10 is formed as a cylindrical tank.
- the liner 10 has a gas barrier property and suppresses permeation of high-pressure gas to the outside. As shown in FIGS. 1 and 2, the liner 10 is provided on one side of the barrel portion 11 provided at the center in the axial direction X, the mirror portion 12 provided on both sides of the barrel portion 11 in the axial direction X, and the mirror portion 12. A base 13 to be used.
- the trunk portion 11 is formed in a cylindrical shape so as to extend in the axial direction X.
- the mirror part 12 curves so as to gradually decrease outward in the axial direction X.
- a radially outward force F ⁇ b> 1 acts on the inner peripheral surface 11 ⁇ / b> A of the trunk portion 11 from the high-pressure gas accommodated therein.
- a force F2 acts on the inner peripheral surface 12A of the mirror part 12 from a high-pressure gas accommodated therein along a direction orthogonal to the inner peripheral surface 12A.
- the magnitudes of the force F1 and the force F2 are equal.
- a bending stress S is generated in the shoulder portion 14 which is a boundary portion between the inner peripheral surface 11A of the trunk portion 11 and the inner peripheral surface 12A of the mirror portion 12, and the strength against the bending stress is required as compared with other portions. It is.
- the base 13 is configured to protrude outward from the mirror part 12 in the axial direction X.
- a pipe is connected to the base 13 or a valve mechanism including an open / close valve and a pressure reducing valve is connected to fill and discharge the high pressure gas storage container 1 with high pressure gas.
- die 13 may be provided in the mirror part 12 of both sides.
- the material constituting the liner 10 can be made of metal or synthetic resin.
- the metal for example, iron, aluminum, stainless steel or the like can be used.
- the synthetic resin that can be used include polyethylene, polyamide, and polypropylene.
- the reinforcing layer 30 is formed by winding a predetermined number of reinforcing members 20 around the outer peripheral surface 10 ⁇ / b> A of the liner 10.
- the number of times the reinforcing member 20 is wound, that is, the number of the reinforcing layers 30 is not particularly limited, but is 20 to 30, for example.
- the reinforcing layer 30 improves the pressure resistance strength of the liner 10.
- the reinforcing member 20 is made of a reinforcing fiber 21 impregnated with a resin 22 as shown in FIG.
- the reinforcing member 20 includes a reinforcing member 20A wound around a hoop layer 31 described later, and a reinforcing member 20B wound around the helical layer 32.
- the reinforcing fiber 21 according to this embodiment is irradiated with plasma P.
- an acidic functional group can be added to the reinforcing fiber 21. Therefore, the adhesion of the resin 22 to the reinforcing fiber 21 is improved, and the strength as the reinforcing member 20 is improved.
- the reinforcing fiber 21 for example, carbon fiber, glass fiber, polyamide fiber or the like can be used.
- a carbon fiber having a small coefficient of thermal expansion and excellent dimensional stability and less deterioration in mechanical properties even at high temperatures will be described.
- the reinforcing fiber 21 is configured in a bundle of about 1000 to 50000 carbon fibers.
- thermosetting resin for example, an epoxy resin, a polyester resin, or a phenol resin can be used.
- thermoplastic resin for example, a polyamide resin or a polypropylene resin can be used.
- FIG. 4A is a graph showing how the tensile strength of the reinforcing member 20 is improved by irradiating the plasma P.
- FIG. 4B is a graph showing how the bending strength of the reinforcing member 20 is improved by irradiating the plasma P.
- the left side shows the strength of a test piece obtained by impregnating resin 22 with carbon fibers called large tow having 30000 or more single fibers.
- the right side shows the strength of the test piece in which the large tow is irradiated with the plasma P and impregnated with the resin 22.
- the tensile strength of the reinforcing member 20 is improved by irradiating the plasma P.
- the bending strength of the reinforcing member is improved by irradiating the plasma P.
- the bending strength is preferably improved more than the tensile strength.
- the reinforcing layer 30 includes a hoop layer 31 formed by winding the reinforcing member 20 ⁇ / b> A around the trunk portion 11 along the circumferential direction, and the reinforcing member 20 ⁇ / b> B with respect to the trunk portion 11 and the mirror portion 12. And a helical layer 32 wound spirally.
- the hoop layers 31 and the helical layers 32 are alternately stacked.
- the hoop layers 31 and the helical layers 32 may not be stacked alternately.
- the hoop layer 31 ensures the tensile strength in the radial direction of the body part 11.
- the reinforcing member 20 ⁇ / b> A wound around the hoop layer 31 has a relatively low strength. Therefore, the amount of plasma P irradiated to the reinforcing fibers 21 constituting the reinforcing member 20A is relatively small. Note that, as described above, since the tensile strength of the reinforcing member 20 due to the irradiation of the plasma P is relatively small, the amount of the plasma P irradiated to the reinforcing fibers 21 constituting the reinforcing member 20A may be small.
- the helical layer 32 ensures the strength in the axial direction X of the high-pressure gas storage container 1 because the reinforcing member 20B is wound around the trunk portion 11 and the mirror portion 12. Therefore, the helical layer 32 ensures the strength of the shoulder portion 14 for which bending strength is required. For this reason, the reinforcing member 20B wound around the helical layer 32 has a relatively high strength. Therefore, the amount of plasma P irradiated to the reinforcing fibers 21 constituting the reinforcing member 20B is relatively large. As described above, since the bending strength of the reinforcing member 20 is preferably improved by the irradiation of the plasma P, the bending strength of the shoulder portion 14 can be preferably ensured.
- FIG. 5 is a diagram showing a manufacturing apparatus 100 for the high-pressure gas storage container 1.
- the manufacturing apparatus 100 for the high-pressure gas storage container 1 includes a storage unit 110, an irradiation unit 120, an impregnation unit 130, a transport unit 140, a detection unit 150, and a control unit 160. .
- the storage unit 110 stores the bobbin-shaped reinforcing fibers 21.
- the storage unit 110 includes a set unit 111 on which the bobbin-shaped reinforcing fibers 21 are set, and four rollers 112 to 115 that maintain the tension of the reinforcing fibers 21.
- the irradiation unit 120 irradiates the reinforcing fiber 21 with plasma P.
- the irradiation unit 120 irradiates the surface 21A of the reinforcing fiber 21 with the plasma P from a direction inclined with respect to the Y direction (orthogonal direction orthogonal to the surface 21A). It is preferable.
- the irradiation part 120 irradiates the surface 21A of the reinforced fiber 21 with the plasma P from the direction inclined 30 degrees or more with respect to the Y direction.
- the plasma gas is applied to the surface 21A of the reinforcing fiber 21 while being inclined, so that compression of the plasma gas is suppressed and the center It is possible to irradiate by ignoring the high temperature part. Therefore, it is possible to efficiently irradiate the reinforcing fiber 21 with the plasma P and add an acidic functional group to the reinforcing fiber 21 while reducing damage to the reinforcing fiber 21.
- the power source of the irradiation unit 120 it is preferable to use an AC power source 121.
- the AC power supply 121 is grounded (grounded).
- the irradiation intensity of the plasma P irradiated from the irradiation unit 120 can be adjusted by adjusting the plasma voltage, current, frequency, electrode, and gas conditions (gas composition).
- adjusting the irradiation intensity of plasma P means adjusting the irradiation intensity of plasma P by adjusting at least one of the above-described plasma voltage, current, frequency, electrode, and gas conditions. It means to adjust.
- the plasma voltage is, for example, 200 to 400 V and preferably 260 to 280 V from the viewpoint of the ease of generating plasma P.
- the pulse discharge frequency is, for example, 10 to 30 kHz, and preferably 16 to 20 kHz, from the viewpoint of easy generation of plasma P.
- the plasma irradiation distance is, for example, 2 to 30 mm, preferably 10 to 15 mm. If the plasma irradiation distance is short, the reinforcing fiber 21 may be damaged. If the plasma irradiation distance is long, the surface modification effect becomes small.
- the plasma irradiation time is, for example, 0.1 to 5.0 seconds, and preferably 0.5 to 1.0 seconds. If the plasma irradiation time is short, the surface modification effect is small, and if it is long, the reinforcing fiber 21 may be damaged.
- the plasma gas for example, a mixed gas containing 0.5% or more of oxygen, nitrogen, or helium can be used.
- the impregnation unit 130 impregnates the reinforcing fiber 21 irradiated with the plasma P with the resin 22.
- the impregnation unit 130 includes a storage unit 131 in which the resin 22 is stored, and a rotating unit 132 that rotates in synchronization with the conveyance of the reinforcing fibers 21 while being in contact with the reinforcing fibers 21.
- the impregnation unit 130 further includes an adjustment unit 133 that adjusts the amount of the resin 22 that adheres to the rotation unit 132, and a pair of rollers 134 and 135 that are provided on the upstream side and the downstream side of the rotation unit 132 in the transport direction and maintain tension. And having.
- the impregnation unit 130 further includes a guide unit 136 that is provided on the downstream side of the downstream roller 135 and guides the reinforcing fiber 21 toward the liner 10.
- the storage unit 131 includes a recess 131 ⁇ / b> A on the upper side, and the resin 22 is stored in the recess 131 ⁇ / b> A.
- the rotating part 132 rotates while contacting the resin 22 stored in the recess 131A in the lower part and in contact with the reinforcing fiber 21 conveyed in the upper part.
- the rotating unit 132 rotates clockwise in synchronization with the conveyance of the reinforcing fiber 21.
- the resin 22 adhering to the outer periphery of the rotation part 132 is lifted upward and adheres to the reinforcing fiber 21 irradiated with the plasma P.
- the reinforcing fiber 21 can be impregnated with the resin 22 and the reinforcing member 20 is formed.
- the rotating unit 132 maintains the tension of the reinforcing fiber 21 irradiated with the plasma P together with the rollers 134 and 135.
- the adjusting unit 133 adjusts the amount of the resin 22 attached to the outer periphery of the rotating unit 132.
- the adjusting unit 133 contacts the resin 22 attached to the outer periphery of the rotating unit 132 to move the removing unit 133A that removes the resin 22 by a predetermined amount and the removing unit 133A so that the rotating unit 132 can be approached and separated.
- Moving unit 133B to be moved.
- the guide part 136 guides the reinforcing fiber 21 impregnated with the resin 22 toward the liner 10.
- the guide part 136 has an L shape.
- the structure of the impregnation part 130 will not be specifically limited if it is the structure which can impregnate the resin 22 to the reinforced fiber 21 with which the plasma P was irradiated.
- the transport unit 140 transports the reinforcing fiber 21 from the left side to the right side of FIG. 5, while the reinforcing member 20 obtained by impregnating the resin 22 into the reinforcing fiber 21 irradiated with the plasma P on the surface 21 ⁇ / b> A is used as the liner 10. Is wound around the outer peripheral surface 10A.
- the transport unit 140 is a motor.
- the detection unit 150 detects the conveyance speed of the reinforcing fiber 21.
- a known speed sensor can be used.
- the location where the detection unit 150 is disposed is not particularly limited as long as the reinforcing fiber 21 is conveyed.
- the control unit 160 controls the operation of the irradiation unit 120, the transport unit 140, and the like.
- the control part 160 what was comprised by the well-known microcomputer provided with CPU, RAM, ROM, etc. can be used.
- the bobbin-shaped reinforcing fiber 21 is set in the setting unit 111, and the conveying unit 140 is operated in a state where the liner 10 is set at the position shown in FIG. As a result, the liner 10 rotates and the reinforcing fibers 21 are conveyed (S01). At this time, the detection unit 150 detects the conveyance speed of the reinforcing fibers 21.
- the irradiation unit 120 irradiates the conveyed reinforcing fiber 21 with the plasma P (S02).
- the step S02 of irradiating the plasma P includes a first irradiation step of irradiating the reinforcing fiber 21 constituting the reinforcing member 20A wound around the hoop layer 31 with the plasma P.
- the step S02 of irradiating the plasma P includes a second irradiation step of irradiating the reinforcing fiber 21 constituting the reinforcing member 20B wound around the helical layer 32 with the plasma P.
- the first irradiation step and the second irradiation step are performed alternately. Moreover, the irradiation amount of the plasma P irradiated in the first irradiation step is smaller than the irradiation amount of the plasma P irradiated in the second irradiation step.
- the irradiation amount of the plasma P is adjusted by adjusting the irradiation intensity of the irradiation unit 120 and the conveyance speed of the reinforcing fiber 21. That is, in the first irradiation step, the irradiation amount of the plasma P is reduced by adjusting the irradiation intensity of the irradiation unit 120 to be weak and increasing the conveyance speed of the reinforcing fiber 21. On the other hand, in the second irradiation step, the irradiation amount of the plasma P is increased by adjusting the irradiation intensity of the irradiation unit 120 and decreasing the conveyance speed of the reinforcing fiber 21.
- the irradiation intensity of the plasma P can be reduced with respect to the reinforcing fibers 21 constituting the reinforcing member 20A wound around the hoop layer 31 where relatively high strength is not required. Accordingly, the amount of plasma gas used can be reduced, and the running cost can be reduced.
- the conveying speed of the reinforcing fiber 21 is increased. be able to. Therefore, manufacturing time can be shortened and productivity can be improved.
- the resin 22 is impregnated into the reinforcing fiber 21 irradiated with the plasma P (S03).
- the reinforcing member 20A is formed by impregnating the reinforcing fiber 21 irradiated with the plasma P in the first irradiation step with the resin 22.
- the reinforcing member 20B is formed by impregnating the reinforcing fiber 21 irradiated with the plasma P in the second irradiation step with the resin 22.
- the strength of the reinforcing member 20B is higher than that of the reinforcing member 20A.
- the step S04 of winding the reinforcing member 20 includes a hoop winding step of winding the reinforcing member 20A around the trunk portion 11 along the circumferential direction. Further, the step S04 of winding the reinforcing member 20 includes a helical winding step of winding the reinforcing member 20B around the trunk portion 11 and the mirror portion 12 in a spiral shape.
- the hoop winding process and the helical winding process are performed alternately.
- the conveyance speed of the reinforcing fiber 21 changes according to the change in the diameter of the position where the mirror part 12 is wound. There is.
- the conveyance speed changes, even if the irradiation intensity of the plasma P is constant, the irradiation amount of the plasma P to the reinforcing fiber 21 changes. Therefore, there is a concern that unintended variation in strength occurs in the reinforcing member 20 in one layer 31, 32.
- the control unit 160 adjusts the irradiation intensity of the irradiation unit 120 based on the information on the conveyance speed detected by the detection unit 150 and irradiates the reinforcing fiber 21 with the plasma P. Keep the amount constant. Specifically, when the transfer speed is relatively high, the irradiation intensity of the plasma P is adjusted to be high, and when the transfer speed is relatively low, the irradiation intensity of the plasma P is adjusted to be low. To do. As described above, by adjusting the irradiation intensity of the irradiation unit 120, it is possible to suppress a variation in the intensity of the reinforcing member 20 in one of the layers 31 and 32.
- the high-pressure gas storage container 1 having the liner 10, the hoop layer 31 made of the reinforcing member 20A, and the helical layer 32 made of the reinforcing member 20B is manufactured by the above manufacturing method.
- the reinforcing fiber 21 is irradiated with the plasma P, the strength of the reinforcing member 20 is improved. Therefore, it is possible to reduce the amount of the reinforcing member 20 wound around the outer peripheral surface 10 ⁇ / b> A of the liner 10 while suppressing a decrease in strength of the high-pressure gas storage container 1.
- the high-pressure gas storage container 1 includes the liner 10 that stores high-pressure gas, and the reinforcing layer 30 that is formed by winding the belt-shaped reinforcing member 20 around the outer peripheral surface 10A of the liner 10.
- the reinforcing member 20 is composed of reinforcing fibers 21 impregnated with resin 22 and irradiated with plasma P.
- acidic functional groups can be added to the reinforcing fibers 21 by irradiating the reinforcing fibers 21 with the plasma P. Therefore, the adhesion of the resin 22 to the reinforcing fiber 21 is improved, and the strength of the reinforcing member 20 is improved. Therefore, the amount of the reinforcing member 20 wound around the outer peripheral surface 10A of the liner 10 can be reduced and the weight can be reduced while suppressing a decrease in strength.
- the liner 10 has a barrel 11 provided in a cylindrical shape in the center of the axial direction X, and a mirror that is provided on both sides of the barrel 11 in the axial direction X and curves so as to gradually decrease outward in the axial direction X.
- Part 12 The reinforcing layer 30 includes a hoop layer 31 formed by winding the reinforcing member 20 ⁇ / b> A around the body 11 along the circumferential direction, and a helical formed by winding the reinforcing member 20 ⁇ / b> B around the body 11 and the mirror 12 in a spiral shape. And layer 32.
- the reinforcing fiber 21 constituting the reinforcing member 20B wound around the helical layer 32 is irradiated with plasma P.
- the helical layer 32 contributes to securing the strength of the shoulder portion 14 for which bending strength is required.
- the strength in the shoulder 14 can be improved. it can.
- the bending strength of the reinforcing member 20B is preferably improved by the irradiation of the plasma P, the bending strength at the shoulder portion 14 can be preferably improved.
- the reinforcing fiber 21 constituting the reinforcing member 20A wound around the hoop layer 31 is irradiated with plasma P. Further, the reinforcing fiber 21 constituting the reinforcing member 20A wound around the hoop layer 31 is configured so that the amount of the plasma P irradiated is smaller than the reinforcing fiber 21 constituting the reinforcing member 20B wound around the helical layer 32. Do it. According to the high-pressure gas storage container 1 configured as described above, since the reinforcing fiber 21 constituting the reinforcing member 20A wound around the hoop layer 31 is irradiated with the plasma P, the strength of the trunk portion 11 can be improved. it can.
- the irradiation intensity of the plasma P can be reduced with respect to the reinforcing fibers 21 constituting the reinforcing member 20A wound around the hoop layer 31 where relatively high strength is not required. Accordingly, the amount of plasma gas used can be reduced, and the running cost can be reduced.
- the method for manufacturing the high-pressure gas storage container 1 is a reinforcement formed by winding the belt-shaped reinforcing member 20 around the liner 10 containing the high-pressure gas and the outer peripheral surface 10A of the liner 10. And a high pressure gas storage container 1 having a layer 30.
- the reinforcing fiber 21 is irradiated with plasma P, the reinforcing fiber 21 is impregnated with the resin 22 to form the reinforcing member 20, and the reinforcing member 20 is wound around the outer peripheral surface 10 ⁇ / b> A of the liner 10.
- acidic functional groups can be added to the reinforcing fibers 21 by irradiating the reinforcing fibers 21 with the plasma P. Therefore, the adhesion of the resin 22 to the reinforcing fiber 21 is improved, and the strength of the reinforcing member 20 is improved. Therefore, the amount of the reinforcing member 20 wound around the outer peripheral surface 10A of the liner 10 can be reduced and the weight can be reduced while suppressing a decrease in strength.
- the reinforcing member 20 when the reinforcing member 20 is wound around the outer peripheral surface 10A of the liner 10, there is a helical winding process in which the reinforcing member 20B including the reinforcing fiber 21 irradiated with the plasma P is spirally wound around the liner 10.
- the helical layer 32 formed by the helical winding process contributes to securing the strength of the shoulder portion 14 for which bending strength is required.
- the plasma P is applied to the reinforcing fiber 21 that constitutes the reinforcing member 20B wound around the helical layer 32, the strength of the shoulder portion 14 can be improved.
- the bending strength of the reinforcing member 20B is preferably improved by irradiation with plasma P, the bending strength at the shoulder portion 14 can be preferably improved, and the occurrence of stress concentration at the shoulder portion 14 can be suppressed. .
- a hoop winding step of winding the reinforcing member 20 ⁇ / b> A including the reinforcing fiber 21 irradiated with the plasma P around the trunk portion 11 along the circumferential direction is further performed.
- the reinforcing fiber 21 constituting the reinforcing member 20A wound in the hoop winding process has a smaller amount of irradiation of the plasma P than the reinforcing fiber 21 constituting the reinforcing member 20B wound in the helical winding process.
- the reinforcing fiber 21 constituting the reinforcing member 20A wound around the hoop layer 31 is irradiated with the plasma P, the strength in the trunk portion 11 is improved. Can do.
- the irradiation intensity of the plasma P can be reduced with respect to the reinforcing fibers 21 constituting the reinforcing member 20A wound around the hoop layer 31 where relatively high strength is not required. Accordingly, the amount of plasma gas used can be reduced, and the running cost can be reduced.
- the conveying speed of the reinforcing fiber 21 when the irradiation amount of the plasma P is relatively small is faster than the conveying speed of the reinforcing fiber 21 when the irradiation amount of the plasma P is relatively large. According to this manufacturing method, manufacturing time can be shortened and productivity can be improved.
- the irradiation intensity of the plasma P is adjusted so that the irradiation amount of the plasma P to the reinforcing fiber 21 becomes constant according to the change in the conveying speed of the reinforcing fiber 21 in the helical winding process. According to this manufacturing method, it is possible to suppress the occurrence of variation in strength in the reinforcing member 20 in one of the layers 31 and 32 constituting the reinforcing layer 30.
- the surface 21A of the reinforcing fiber 21 is irradiated with the plasma P from the direction inclined with respect to the orthogonal direction orthogonal to the surface 21A. According to this configuration, since the plasma P is irradiated on the surface 21A of the reinforcing fiber 21 while being inclined, the compression of the plasma gas is suppressed, and the central high temperature portion can be emitted and irradiated. Therefore, it is possible to efficiently irradiate the reinforcing fiber 21 with the plasma P and to impart an acidic functional group to the reinforcing fiber 21 while reducing damage to the reinforcing fiber 21.
- the high-pressure gas storage container 2 according to Modification Example 1 is different from the high-pressure gas storage container 1 according to the above-described embodiment in the configuration of the helical layer 320.
- FIG. 7 is a view showing the high-pressure gas storage container 2 according to the first modification. In FIG. 7, the hoop layer 31 is not shown for easy understanding.
- the helical layer 320 of the high-pressure gas storage container 2 according to Modification 1 is formed by winding the reinforcing member 20 ⁇ / b> C at an angle inclined by the first inclination angle ⁇ ⁇ b> 1 with respect to the axial direction X. 321. Further, the helical layer 320 includes a second helical layer 322 formed by winding the reinforcing member 20D at an angle inclined with respect to the axial direction X by a second inclination angle ⁇ 2 smaller than the first inclination angle ⁇ 1.
- the boundary angle between the first tilt angle ⁇ 1 and the second tilt angle ⁇ 2 is set to 55 degrees, which is a tilt angle at which the strength against the internal pressure of the cylindrical part can be theoretically optimally secured.
- the first helical layer 321 has a great effect of contributing to the effect of the hoop layer 31, that is, securing the strength of the body portion 11 in the circumferential direction.
- the second helical layer 322 has a larger influence that contributes to securing the strength of the shoulder portion 14 than the first helical layer 321.
- the reinforcing member 20 ⁇ / b> D wound around the second helical layer 322 has a higher strength than the reinforcing member 20 ⁇ / b> C wound around the first helical layer 321. Therefore, the amount of irradiation of the plasma P is larger in the reinforcing fiber 21 constituting the reinforcing member 20D than in the reinforcing fiber 21 constituting the reinforcing member 20C.
- the step of irradiating the plasma P includes a first irradiation step of irradiating the reinforcing fiber 21 constituting the reinforcing member 20A wound around the hoop layer 31 with the plasma P. Further, the step of irradiating the plasma P includes a third irradiation step of irradiating the reinforcing fiber 21 constituting the reinforcing member 20C wound around the first helical layer 321 with the plasma P. Further, the step of irradiating the plasma P includes a fourth irradiation step of irradiating the reinforcing fiber 21 constituting the reinforcing member 20D wound around the second helical layer 322 with the plasma P.
- the irradiation amount of plasma P irradiated in the third irradiation step is smaller than the irradiation amount of plasma P irradiated in the fourth irradiation step. Further, the amount of plasma P irradiated in the third irradiation step is larger than the amount of plasma P irradiated in the first irradiation step.
- the step of winding the reinforcing member 20 includes a hoop winding step of winding the reinforcing member 20A around the trunk portion 11 along the circumferential direction.
- the step of winding the reinforcing member 20 includes a first helical winding step of winding the reinforcing member 20C around the trunk portion 11 and the mirror portion 12 at an angle inclined by the first inclination angle ⁇ 1 with respect to the axial direction X.
- the step of winding the reinforcing member 20 includes a second helical winding step of winding the reinforcing member 20D around the trunk portion 11 and the mirror portion 12 at an angle inclined by the second inclination angle ⁇ 2 with respect to the axial direction X. .
- the helical layer 320 of the high-pressure gas storage container 2 includes the first helical layer 321 and the second helical layer 322.
- the reinforcing fiber 21 constituting the reinforcing member 20C wound around the first helical layer 321 is less irradiated with the plasma P than the reinforcing fiber 21 constituting the reinforcing member 20D wound around the second helical layer 322. Consists of.
- the reinforcing fiber 21 constituting the reinforcing member 20C wound around the first helical layer 321 whose strength is not required as compared with the second helical layer 322 is used.
- the irradiation intensity of plasma P can be reduced. Accordingly, the amount of plasma gas used can be reduced, and the running cost can be reduced.
- the first helical layer 321 is wound around the reinforcing member 20C at an angle of 55 degrees or more with respect to the axial direction X, and the second helical layer 322 has the reinforcing member 20D of less than 55 degrees with respect to the axial direction X. Wrapped at an inclined angle.
- the reinforcing member 20 is wound at an angle inclined by 55 degrees with respect to the axial direction X, the strength of the liner 10 against the internal pressure from the high-pressure gas can be theoretically optimally ensured.
- the first helical layer 321 has an effect that contributes to the effect of the hoop layer 31, that is, to ensure the strength of the body portion 11 in the circumferential direction.
- the influence of the second helical layer 322 contributing to securing the strength of the shoulder 14 is greater than that of the first helical layer 321. Therefore, the distribution of the plasma P applied to the reinforcing fibers 21 constituting the hoop layer 31, the first helical layer 321, and the second helical layer 322 can be optimized.
- the helical winding process includes a first helical winding process and a second helical winding process.
- the reinforcing fiber 21 constituting the reinforcing member 20C wound in the first helical winding process is less irradiated with the plasma P than the reinforcing fiber 21 constituting the reinforcing member 20D wound in the second helical winding process.
- the irradiation intensity of the plasma P can be reduced with respect to the reinforcing fibers 21 constituting the reinforcing member 20C wound around the first helical layer 321 where relatively high strength is not required. Accordingly, the amount of plasma gas used can be reduced, and the running cost can be reduced.
- the reinforcing member 20C is wound at an angle inclined by 55 degrees or more with respect to the axial direction X
- the reinforcing member 20D is inclined by less than 55 degrees with respect to the axial direction X. Wrap at an angle.
- the reinforcing member 20 is wound at an angle inclined by 55 degrees with respect to the axial direction X
- the strength of the liner 10 against the internal pressure from the high-pressure gas can be theoretically optimally ensured.
- the first helical layer 321 has an effect that contributes to the effect of the hoop layer 31, that is, to ensure the strength of the body portion 11 in the circumferential direction.
- the influence of the second helical layer 322 contributing to securing the strength of the shoulder 14 is greater than that of the first helical layer 321. Therefore, the distribution of irradiation of the plasma P to the reinforcing fibers 21 constituting the hoop layer 31, the first helical layer 321 and the second helical layer 322 can be further optimized.
- the reinforcing fiber 21 constituting the reinforcing member 20A wound around the hoop layer 31 is irradiated with the plasma P.
- the reinforcing fiber 21 constituting the reinforcing member 20A wound around the hoop layer 31 may not be irradiated with the plasma P. According to the high pressure gas storage container and the manufacturing method of the high pressure gas storage container configured as described above, the usage amount of the plasma gas can be further reduced, so that the running cost can be further reduced.
- the reinforcing fiber 21 constituting the reinforcing member 20C wound around the first helical layer 321 was irradiated with the plasma P.
- the reinforcing fiber 21 constituting the reinforcing member 20C wound around the first helical layer 321 may not be irradiated with the plasma P.
- the plasma P is irradiated to all the reinforcing fibers 21 constituting the reinforcing layer 30.
- any form of the reinforcing fiber 21 constituting the reinforcing layer 30 and at least a portion irradiated with the plasma P is included in the present invention.
- the liner 10 has a cylindrical shape, but may have a quadrangular prism shape or the like.
- the angle serving as the boundary between the first helical layer 321 and the second helical layer 322 is set to 55 degrees, but is not limited thereto.
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Abstract
Description
本実施形態に係る高圧ガス貯蔵容器1は、概説すると、図1に示すように、水素ガス等の高圧ガスを収容するライナー10と、ライナー10の外周面10Aに帯状の補強部材20を巻き付けて形成した補強層30と、を有する。また、補強部材20は、図3、5に示すように、樹脂22が含浸され、かつ、プラズマPが照射された強化繊維21からなる。以下、本実施形態に係る高圧ガス貯蔵容器1の構成を詳述する。
次に、図5を参照して、本実施形態に係る高圧ガス貯蔵容器1の製造装置100を説明する。図5は、高圧ガス貯蔵容器1の製造装置100を示す図である。
次に、図6のフローチャートを参照して、本実施形態に係る高圧ガス貯蔵容器1の製造方法について説明する。なお、本実施形態に係る高圧ガス貯蔵容器1の製造方法は、フィラメントワインディング法によって行われる。
以下、上述した実施形態の改変例について説明する。
10 ライナー、
10A ライナーの外周面、
11 胴部、
12 鏡部、
20、20A、20B、20C、20D 補強部材、
21 強化繊維、
22 樹脂、
30 補強層、
31 フープ層、
32、320 ヘリカル層、
321 第1ヘリカル層、
322 第2ヘリカル層、
P プラズマ。
Claims (15)
- 高圧ガスを収容するライナーと、前記ライナーの外周面に帯状の補強部材を巻き付けて形成した補強層と、を有する高圧ガス貯蔵容器であって、
前記補強部材は、樹脂が含浸され、かつ、少なくとも一部にプラズマが照射された強化繊維からなる高圧ガス貯蔵容器。 - 前記ライナーは、軸方向の中央に筒状に設けられる胴部と、前記胴部の前記軸方向の両側に設けられ前記軸方向の外方に向けて漸減するように湾曲する鏡部と、を有し、
前記補強層は、前記補強部材を前記胴部に対して円周方向に沿って巻き付けてなるフープ層と、前記補強部材を前記胴部および前記鏡部に対して螺旋状に巻き付けてなるヘリカル層と、を有し、
前記ヘリカル層において巻き付けられる前記補強部材を構成する前記強化繊維は、前記プラズマが照射されてなる請求項1に記載の高圧ガス貯蔵容器。 - 前記フープ層において巻き付けられる前記補強部材を構成する前記強化繊維は、前記プラズマが照射されてなり、
前記フープ層において巻き付けられる前記補強部材を構成する前記強化繊維は、前記ヘリカル層において巻き付けられる前記補強部材を構成する前記強化繊維よりも、前記プラズマが照射される量が少なくなるように構成してなる、請求項2に記載の高圧ガス貯蔵容器。 - 前記フープ層において巻き付けられる前記補強部材を構成する前記強化繊維に対して、前記プラズマが照射される量はゼロである、請求項2に記載の高圧ガス貯蔵容器。
- 前記ヘリカル層は、前記補強部材を前記軸方向に対して第1傾斜角だけ傾斜した角度で巻き付けてなる第1ヘリカル層と、前記補強部材を前記軸方向に対して前記第1傾斜角よりも小さい第2傾斜角だけ傾斜した角度で巻き付けてなる第2ヘリカル層と、を有し、
前記第1ヘリカル層において巻き付けられる前記補強部材を構成する前記強化繊維は、前記第2ヘリカル層において巻き付けられる前記補強部材を構成する前記強化繊維よりも、前記プラズマが照射される量が少なくなるように構成してなる、請求項2~4のいずれか1項に記載の高圧ガス貯蔵容器。 - 前記第1ヘリカル層は、前記補強部材が前記軸方向に対して55度以上傾斜した角度で巻き付けてなり、
前記第2ヘリカル層は、前記補強部材が前記軸方向に対して55度未満傾斜した角度で巻き付けてなる、請求項5に記載の高圧ガス貯蔵容器。 - 高圧ガスを収容するライナーと、前記ライナーの外周面に帯状の補強部材を巻き付けて形成した補強層と、を有する高圧ガス貯蔵容器の製造方法であって、
強化繊維の少なくとも一部にプラズマを照射し、
前記強化繊維に樹脂を含浸させて前記補強部材を形成し、
前記補強部材を前記ライナーの前記外周面に巻き付ける高圧ガス貯蔵容器の製造方法。 - 前記補強部材を前記ライナーの前記外周面に巻き付ける際に、
前記プラズマが照射された前記強化繊維を備える前記補強部材を前記ライナーに対して、螺旋状に巻き付けるヘリカル巻き工程を有する請求項7に記載の高圧ガス貯蔵容器の製造方法。 - 前記補強部材を前記ライナーの前記外周面に巻き付ける際に、
前記プラズマが照射された前記強化繊維を備える前記補強部材を前記ライナーのうち軸方向の中央に筒状に設けられる胴部に対して、円周方向に沿って巻き付けるフープ巻き工程をさらに有し、
前記フープ巻き工程において巻き付けられる前記補強部材を構成する前記強化繊維は、前記ヘリカル巻き工程において巻き付けられる前記補強部材を構成する前記強化繊維よりも、前記プラズマの照射量が少ない、請求項8に記載の高圧ガス貯蔵容器の製造方法。 - 前記補強部材を前記ライナーのうち軸方向の中央に筒状に設けられる胴部に対して、円周方向に沿って巻き付けるフープ巻き工程をさらに有し、
前記フープ巻き工程において巻き付けられる前記補強部材を構成する前記強化繊維に対する前記プラズマの照射量はゼロである、請求項8に記載の高圧ガス貯蔵容器の製造方法。 - 前記ヘリカル巻き工程は、
前記補強部材を軸方向に対して第1傾斜角だけ傾斜した角度で巻き付ける第1ヘリカル巻き工程と、
前記補強部材を前記軸方向に対して前記第1傾斜角よりも小さい第2傾斜角だけ傾斜した角度で巻き付ける第2ヘリカル巻き工程と、を有し、
前記第1ヘリカル巻き工程において巻き付けられる前記補強部材を構成する前記強化繊維は、前記第2ヘリカル巻き工程において巻き付けられる前記補強部材を構成する前記強化繊維よりも、前記プラズマの照射量が少ない、請求項8~10のいずれか1項に記載の高圧ガス貯蔵容器の製造方法。 - 前記第1ヘリカル巻き工程において、前記補強部材を前記軸方向に対して55度以上傾斜した角度で巻き付け、
前記第2ヘリカル巻き工程において、前記補強部材を前記軸方向に対して55度未満傾斜した角度で巻き付ける請求項11に記載の高圧ガス貯蔵容器の製造方法。 - 前記プラズマの照射量が相対的に少ない場合の前記強化繊維の搬送速度は、前記プラズマの照射量が相対的に多い場合の前記強化繊維の搬送速度よりも速い請求項9~12のいずれか1項に記載の高圧ガス貯蔵容器の製造方法。
- 前記ヘリカル巻き工程における前記強化繊維の搬送速度の変化に応じて、
前記強化繊維に対する前記プラズマの照射量が一定となるように、前記プラズマの照射強度を調整する請求項8~13のいずれか1項に記載の高圧ガス貯蔵容器の製造方法。 - 前記強化繊維の表面に、前記表面に直交する直交方向に対して傾斜した方向から前記プラズマを照射する請求項7~14のいずれか1項に記載の高圧ガス貯蔵容器の製造方法。
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CN109893897A (zh) * | 2017-12-08 | 2019-06-18 | 曼·胡默尔有限公司 | 用于过滤器子组件的衬里 |
CN109893897B (zh) * | 2017-12-08 | 2022-04-26 | 曼·胡默尔有限公司 | 用于过滤器子组件的衬里 |
CN109893898B (zh) * | 2017-12-08 | 2022-07-22 | 曼·胡默尔有限公司 | 用于过滤器子组件的衬里 |
JP2020067102A (ja) * | 2018-10-22 | 2020-04-30 | 豊田合成株式会社 | 高圧タンク |
WO2020084946A1 (ja) * | 2018-10-22 | 2020-04-30 | 豊田合成株式会社 | 高圧タンク |
JP7093010B2 (ja) | 2018-10-22 | 2022-06-29 | 豊田合成株式会社 | 高圧タンク |
US11193630B2 (en) | 2019-04-01 | 2021-12-07 | Toyota Jidosha Kabushiki Kaisha | High pressure tank and method for manufacturing the same |
JP2021076194A (ja) * | 2019-11-11 | 2021-05-20 | トヨタ自動車株式会社 | 圧力容器及びその製造方法 |
JP7314771B2 (ja) | 2019-11-11 | 2023-07-26 | トヨタ自動車株式会社 | 圧力容器及びその製造方法 |
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KR20180114152A (ko) | 2018-10-17 |
US10940663B2 (en) | 2021-03-09 |
EP3425257A1 (en) | 2019-01-09 |
US20190077109A1 (en) | 2019-03-14 |
EP3425257A4 (en) | 2019-03-20 |
CN109073148A (zh) | 2018-12-21 |
KR102117492B1 (ko) | 2020-06-01 |
EP3425257B1 (en) | 2022-07-20 |
US11590725B2 (en) | 2023-02-28 |
JP6627961B2 (ja) | 2020-01-15 |
CA3016384A1 (en) | 2017-09-08 |
US20210146647A1 (en) | 2021-05-20 |
CN109073148B (zh) | 2020-10-23 |
JPWO2017149817A1 (ja) | 2018-12-20 |
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