CN112197164A - Reinforced plastic liner winding hydrogen storage bottle and winding method - Google Patents

Reinforced plastic liner winding hydrogen storage bottle and winding method Download PDF

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Publication number
CN112197164A
CN112197164A CN202011061403.9A CN202011061403A CN112197164A CN 112197164 A CN112197164 A CN 112197164A CN 202011061403 A CN202011061403 A CN 202011061403A CN 112197164 A CN112197164 A CN 112197164A
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China
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hydrogen storage
winding
storage bottle
plastic liner
carbon fiber
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CN112197164B (en
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赵利可
甄崇礼
刘峰
李楠
周小兵
刘岩
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Xinqi Times Beijing Material Technology Co ltd
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Xinqi Times Beijing Material Technology Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
    • F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
    • 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/08—Mounting arrangements for 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
    • F17C2201/00—Vessel construction, in particular geometry, arrangement or size
    • F17C2201/03—Orientation
    • F17C2201/035—Orientation with substantially horizontal main axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2203/00—Vessel construction, in particular walls or details thereof
    • F17C2203/01—Reinforcing or suspension means
    • F17C2203/011—Reinforcing means
    • 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
    • F17C2203/066—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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0123—Mounting arrangements characterised by number of vessels
    • F17C2205/013—Two or more 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
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0107—Single phase
    • F17C2223/0123—Single phase gaseous, e.g. CNG, GNC
    • 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)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention relates to a hydrogen storage bottle wound with a reinforced plastic inner container and a winding method, belongs to the technical field of hydrogen storage bottles, and solves the problem that the radial impact resistance of the side wall of the hydrogen storage bottle is reduced under the condition that the hydrogen storage bottle is longer. The invention relates to a hydrogen storage bottle wound with a reinforced plastic inner container, which comprises a plastic inner container, a winding shaft, a carbon fiber winding layer, an axial reinforced prefabricated part and a prefabricated part end cap; the axial reinforcement prefabricated member is in a tubular shape or an arched tile shape, each hydrogen storage bottle is provided with 4 axial reinforcement prefabricated members, and the 4 axial reinforcement prefabricated members are symmetrically fixed on the outer side of the carbon fiber winding layer through the prefabricated member end caps. The hydrogen storage bottle is provided with the axial reinforcement prefabricated part which is positioned in the vacant spaces of four symmetrical corners in the square outside the hydrogen storage bottle, so that the bending impact resistance of the lengthened hydrogen storage bottle is enhanced under the condition of not increasing the installation space requirement of the hydrogen storage bottle.

Description

Reinforced plastic liner winding hydrogen storage bottle and winding method
Technical Field
The invention relates to the technical field of hydrogen storage bottles, in particular to a hydrogen storage bottle wound with a reinforced plastic liner and a winding method.
Background
The existing hydrogen storage bottles in China are mainly 35MPa type bottles. The three-type bottle adopts aluminum alloy as the inner container, has the advantages of light weight, high hydrogen storage density and the like, but the metal hydrogen embrittlement effect is more obvious along with the rise of hydrogen storage pressure, so that the upgrading space is directly limited by using the existing three-type bottle technical route. The 70MPa four-type bottle wound by the plastic inner container has the characteristics of corrosion resistance, light weight, high strength, high hydrogen storage density per unit mass, long cycle life and low cost, is the development direction of the current hydrogen storage bottle and has good development prospect.
With the continuous advance of science and technology, the vehicle-mounted high-pressure gaseous hydrogen storage of China can gradually transition to the four-type hydrogen storage bottle, and the safety of the 70MPa four-type hydrogen storage bottle wound by the high-pressure plastic liner is the focus of attention of people. For the field of commercial vehicles, the hydrogen storage requirement is large, and a hydrogen storage bottle with larger volume is required. Considering the installation space limitation, a hydrogen storage cylinder having a relatively large length and diameter is the most preferable. But under the longer condition of gas cylinder length, the ability of its lateral wall anti radial impact will descend, and thickening winding layer then will reduce the gas storage efficiency of gas cylinder.
Disclosure of Invention
In view of the above analysis, the present invention aims to provide a hydrogen storage cylinder with a reinforced plastic liner wrapped around and a wrapping method thereof, so as to solve the problems that the radial impact resistance of the sidewall is reduced and the gas storage efficiency of the cylinder is reduced by thickening the wrapping layer under the condition that the length of the hydrogen storage cylinder is longer.
The purpose of the invention is mainly realized by the following technical scheme:
a hydrogen storage bottle with a reinforced plastic inner container wound comprises a plastic inner container, a winding shaft, a carbon fiber winding layer, an axial reinforced prefabricated part and a prefabricated part end cap;
the axial reinforcement prefabricated member is in a tubular shape or an arched tile shape, each hydrogen storage bottle is provided with 4 axial reinforcement prefabricated members, and the 4 axial reinforcement prefabricated members are symmetrically fixed on the outer side of the carbon fiber winding layer through the prefabricated member end caps.
Further, the reinforced plastic liner wound hydrogen storage bottle further comprises a reinforced prefabricated member pad, wherein the reinforced prefabricated member pad is positioned on the outer side of the carbon fiber winding layer and surrounds the axial reinforced prefabricated member.
Further, the plastic inner container comprises an interface, and the axis of the interface is coaxial with the axis of the plastic inner container.
Further, the winding shaft is sleeved outside the interface and comprises a column part and an eaves part.
Further, the middle of the column portion is provided with a through hole, the through hole is a threaded hole, and the cross section of the column portion is in a regular hexagon shape.
Further, the eaves portion is located the dome-shaped cambered surface department of plastics inner bag, the eaves portion with be equipped with the hydrogen isolation pad between the plastics inner bag.
Further, the carbon fiber winding layer is wound outside the plastic inner container and the winding shaft.
Further, the inner surface shape of the preform end cap corresponds to the shoulder shape of the winding shaft after the carbon fiber winding layer is wound, and the outer surface of the preform end cap is square.
Further, the reinforced plastic liner wound hydrogen storage bottle further comprises a protective fiber winding layer, and the protective fiber winding layer is wound outside the end cap of the prefabricated member, the carbon fiber winding layer and the axial reinforced prefabricated member.
Further, the side surface of the prefabricated part end cap is provided with a groove and a threaded hole.
Further, the reinforced plastic liner wound hydrogen storage bottle further comprises a connecting device, the connecting device comprises a connecting plate and a first bump, a plurality of second bumps are arranged on one side of the connecting plate, and the first bump and the second bump of the connecting device can be inserted into grooves in the side faces of the prefabricated part end caps of the hydrogen storage bottles.
The winding method for winding the hydrogen storage bottle around the reinforced plastic inner container is characterized by comprising the following steps of:
s1, sleeving a winding shaft outside interfaces at two ends of a plastic inner container;
s2, winding a carbon fiber winding layer:
s3, heating and curing the carbon fiber winding layer;
s4, installing the axial reinforcement prefabricated member and the reinforcement prefabricated member pad and winding the protection fiber winding layer.
The invention can realize at least one of the following beneficial effects:
(1) the axial reinforcement prefabricated member of the reinforced plastic liner wound hydrogen storage bottle is positioned outside the carbon fiber winding layer, the internal stress structure of the hydrogen storage bottle cannot be influenced, the axial reinforcement prefabricated member is positioned in the vacant spaces of four symmetrical corners in the square externally connected with the hydrogen storage bottle, and the bending impact resistance of the lengthened hydrogen storage bottle is enhanced under the condition that the installation space requirement of the hydrogen storage bottle is not increased.
(2) The plastic liner of the reinforced plastic liner wound hydrogen storage bottle is provided with two interfaces for mounting a winding shaft, the two interfaces are arranged to determine a main shaft more easily than a single interface in the winding process, the winding jumping is reduced, the winding uniformity is improved, any outlet can be selected in the final use process, and the other outlet is blocked by using a blocking head.
In the invention, the technical schemes can be combined with each other to realize more preferable combination schemes. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout.
FIG. 1 is a cross-sectional view of a reinforced plastic liner wrapped around a hydrogen storage bottle in accordance with an embodiment of the present invention;
FIG. 2 is a side view of a reinforced plastic liner wrapped around a hydrogen storage bottle in accordance with an embodiment of the present invention;
FIG. 3 is a schematic view of a reinforced preform mat according to an embodiment of the present invention;
FIG. 4 is a schematic view showing the combination of the hydrogen storage cylinder of the present invention.
Reference numerals:
1-plastic inner container, 11-interface, 2-winding shaft, 21-column part, 211-hole, 22-brim part, 3-hydrogen isolation pad, 4-carbon fiber winding layer, 5-axial reinforcement prefabricated part, 6-prefabricated part end cap, 61-side surface, 62-connecting device, 7-protective fiber winding layer and 8-reinforcement prefabricated part pad.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form a part hereof, and which together with the embodiments of the invention serve to explain the principles of the invention and not to limit its scope.
In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the term "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection via an intermediate medium. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
One embodiment of the invention, as shown in fig. 1 to 3, discloses a reinforced plastic liner winding hydrogen storage bottle, which comprises a plastic liner 1, a winding shaft 2, a hydrogen isolation pad 3, a carbon fiber winding layer 4, an axial reinforcement prefabricated member 5, a prefabricated member end cap 6 and a protective fiber winding layer 7.
The plastic inner container 1 is a main body of the hydrogen storage bottle, the main body of the plastic inner container 1 is cylindrical, and the length-diameter ratio of the cylinder is 3:1-6: 1. The two ends of the plastic liner 1 are dome-shaped cambered surfaces, the top ends of the cambered surfaces at the two sides are provided with the interfaces 11, the axis of each interface 11 is coaxial with the axis of the plastic liner 1, each interface 11 can be a through hole or a blind hole, and preferably, the interface 11 at one end of the plastic liner 1 is a through hole, and the interface 11 at the other end of the plastic liner 1 is a blind hole. The interface 11 is used for installing the winding shaft 2, so that when the carbon fiber winding layer 4 is wound, the clamp can be fixed on the winding shaft 2, and the carbon fiber winding layer 4 is ensured to be coaxial with the plastic inner container 1.
The cambered surface of the plastic inner container 1 is provided with a clamping groove (not shown in the figure), the corresponding part of the winding shaft 2 is provided with a clamping block, and the clamping groove is clamped with the clamping block of the winding shaft 2 and used for installing and positioning the winding shaft 2. The winding shaft 2 is arranged outside the interface 11, and is made of 6061 aluminum alloy, austenitic stainless steel S31603 and other materials with good ductility and strong corrosion resistance. The winding shaft 2 includes a pillar 21 and a brim 22, and the pillar 21 has a cylindrical shape with a polygonal cross section, and preferably, the pillar 21 has a regular hexagonal cross section. The column part 21 is provided with a hole 211 in the middle thereof, and the hole 211 is a screw hole for installing a control and measurement device of the hydrogen storage cylinder, such as a pressure gauge, a valve, etc. The cross section of the column part 21 is of a regular hexagonal structure so that the hydrogen storage bottle is convenient to be clamped by a winding machine when the carbon fiber winding layer 4 is wound. The column part 21 is sleeved with the interface 11 of the plastic inner container 1. The eave portion 22 is located at the dome-shaped arc surface of the plastic liner 1, and the inner surface shape of the eave portion 22 is the same as the dome-shaped arc surface shape of the plastic liner 1, so that the eave portion 22 can be closely attached to the dome-shaped arc surface of the plastic liner 1.
Be equipped with hydrogen isolating pad 3 between eaves portion 22 and the plastic inner bag 1, hydrogen isolating pad 3 is annular packing ring, presses between winding axle 2 and plastic inner bag 1, and hydrogen isolating pad 3 can prevent that the high-pressure hydrogen in the plastic inner bag 1 from passing through to produce gas leakage between winding axle 2 and the plastic inner bag 1. The material of the hydrogen isolation pad 3 is silicon rubber, fluorine silicon rubber, fluorocarbon rubber, ethylene propylene diene monomer rubber or hydrogenated nitrile rubber.
The carbon fiber winding layer 4 is wound outside the plastic inner container 1 and the winding shaft 2, and the carbon fiber winding layer 4 is composed of carbon fibers or carbon fiber bundles and resin. The carbon fiber winding layer 4 includes hoop winding layers and longitudinal winding layers which are alternately layered. The hoop winding layer is around the circumferencial direction winding of plastic inner bag 1, and vertical winding layer has 10 to 45 contained angles with the axle of plastic inner bag 1, makes carbon fiber at the shoulder evenly distributed of plastic inner bag 1 and winding axle 2 through the winding in turn to pile up near winding axle 2 and strengthen. The winding path and the connection point of the carbon fiber winding layer 4 are determined according to a winding theory and finite element simulation, specifically, the thickness and the winding angle of the winding layer of the hydrogen storage bottle are calculated by adopting the winding theory such as a grid theory, a composite material classical laminated plate theory and the like, then a model of the hydrogen storage bottle comprising the winding layer is established by using finite element simulation software such as Abaqus, Ansys and the like, the acceptance condition of the hydrogen storage bottle is simulated in the simulation software, and whether the calculated winding layer of the hydrogen storage bottle meets the use requirement is verified. Prestress needs to be applied when the carbon fibers are wound, prestress is applied to the fibers by a winding machine in the winding process, and the pretightening force is kept stable in the winding process.
And (3) curing the wound tank body in a heating furnace, filling gaps among fibers with resin in the carbon fiber winding layer 4 under the action of prestress in the preheating process, heating the tank body to the resin curing temperature to permanently cure the resin, and finally cooling and forming. The solidification can get rid of the bubble of fine winding layer 4, fill the clearance in fine winding layer 4 for fine winding layer 4 forms complete whole, avoids gas leakage, simultaneously, improves fine winding layer 4's intensity.
In order to further increase the shock resistance of the hydrogen storage bottle, an axial reinforcement prefabricated member 5 is arranged outside the carbon fiber winding layer 4. The axial reinforcement prefabricated member 5 is in a tubular or arched tile shape, each hydrogen storage bottle is provided with 4 axial reinforcement prefabricated members 5, and the 4 axial reinforcement prefabricated members 5 are symmetrically fixed on the outer side of the carbon fiber winding layer 4 through prefabricated member end caps 6. The external square of the 4 axial reinforcing prefabricated parts 5 is not more than the external square of the carbon fiber winding layer 4, so that the bending impact resistance of the lengthened hydrogen storage bottle is enhanced under the condition of not increasing the requirement of the installation space of the hydrogen storage bottle.
Preform end caps 6 are provided at both ends of the hydrogen storage cylinder for fixing the axial reinforcement preform 5. The inner surface shape of the preform end cap 6 corresponds to the shoulder shape of the winding shaft 2 after winding the carbon fiber winding layer 4, and the outer surface of the preform end cap 6 is square, and preferably, the square surface is provided with a catching groove for supporting and restraining the protection fiber winding layer 7. The middle of the prefabricated part end cap 6 is provided with a hole, and the shape of the hole corresponds to the shape of the column part 21 of the winding shaft 2, so that after the prefabricated part end cap 6 is installed, the column part 11 can extend out of the prefabricated part end cap 6, and the hydrogen storage bottle control and measurement device is convenient to install. The protective fiber winding layer 7 is wound outside the prefabricated part end cap 6, the carbon fiber winding layer 4 and the axial reinforcement prefabricated part 5, the protective fiber winding layer 7 is composed of functional fibers or fiber bundles and resin, and the fiber winding direction is divided into longitudinal winding and end winding. The functional fiber bundle of the protective fiber winding layer 7 can be Kevlar fiber, basalt fiber or glass fiber and the like, and the functional fiber can be one fiber or a plurality of fibers and can be mixed for use according to the requirements. The protective fiber winding layer 7 can further fix the axial reinforcement preform 5, and at the same time, increase the wear resistance and heat insulation of the hydrogen storage bottle. After the protective fiber winding layer 7 is wound, the hydrogen storage bottle is integrally rectangular.
Further, in order to increase the contact area of the carbon fiber winding layer 4 and the axial reinforcement preform 5, disperse the impact, and improve the winding support of the protective layer, the reinforced plastic liner-wound hydrogen storage cylinder of the present embodiment further includes a reinforcement preform pad 8. The reinforcement preform pads 8 are located outside the carbon fiber wound layer 4, surrounding the axial reinforcement preforms 5, each axial reinforcement preform 5 being provided with one or more reinforcement preform pads 8 in the length direction. The reinforcing prefabricated part pad 8 is positioned within the range of the external square of the carbon fiber winding layer 4, the positioning accuracy of the axial reinforcing prefabricated part 5 is ensured under the condition of not increasing the requirement of the installation space of the hydrogen storage bottle, and meanwhile, the bending impact resistance of the lengthened hydrogen storage bottle is enhanced.
Further, as shown in fig. 4, the reinforced plastic liner-wrapped hydrogen storage cylinder of the present embodiment further includes a connecting means 62. The connecting structure can be a bayonet, a hinge and the like, and is used for assembling and fixing a plurality of hydrogen storage bottles during the installation and transportation of the hydrogen storage bottles on a transportation tool. As a specific example of this embodiment, the connecting device 62 includes a connecting plate and a first bump, one side of the connecting plate is provided with a plurality of second bumps, and the connecting plate is provided with a through hole. The side 61 of prefab end cap 6 is equipped with the recess, and the first lug and the second lug of connecting device 62 can insert in the recess of the side 61 of the prefab end cap 6 of a plurality of hydrogen storage bottles, insert the back, lock connecting plate and side 61 with locking device (like, the bolt) to connect a plurality of hydrogen storage bottles, conveniently transport a plurality of hydrogen storage bottles simultaneously, prevent in the transportation, take place relative displacement between a plurality of hydrogen storage bottles.
Example 2
The embodiment of the invention discloses a winding method for winding a reinforced plastic inner container around a hydrogen storage bottle, which comprises the following steps:
s1, a winding shaft 2 is sleeved outside the interfaces 11 at the two ends of the plastic inner container 1:
before the winding shaft 2 is installed, the hydrogen isolation pads 3 are installed at two ends of the plastic inner container 1, then the winding shaft 2 is sleeved on the interface 11, and the plastic inner container 1 and the winding shaft 2 are fixed through an adhesive. Preventing the winding shaft 2 from rotating or displacing during winding. The winding shaft 2 and the interface 11 of the plastic liner 1 are in interference fit, so that the winding shaft 2 and the plastic liner 1 are coaxial.
S2, winding the carbon fiber winding layer 4:
the winding shaft 2 at two ends is fixed by using the winding machine, and the plastic inner container 1 is sealed and pressurized, so that the plastic inner container 1 can provide support for the carbon fiber winding layer 4 when winding the carbon fiber winding layer 4. After the pressurization is completed, the carbon fiber winding layer 4 is wound on the winding shaft 2 and the outside of the plastic inner container 1. Winding can be carried out based on a wet type or by using a thermosetting narrow prepreg tape or thermosetting prepreg yarns, and the winding is divided into a winding layer along the circumferential direction of the cylindrical surface of the plastic liner 1 and an axial winding layer along the main shaft of the tank body. In order to cover the whole cylinder of the hydrogen storage bottle and ensure the uniformity of the wound fibers, a certain angle is formed between the axial winding and the main shaft, the variation range of the angle is 10-45 degrees, and the specific winding angle is determined by the length and the diameter of the hydrogen storage bottle. The winding angle increases or decreases from the inner layer to the outer layer in sequence. The carbon fibers are uniformly distributed on the shoulders of the plastic liner 1 and the winding shaft 2 through alternate winding, and are stacked and reinforced near the winding shaft. The winding path and the joint point are determined according to the winding theory and finite element simulation. The winding machine applies pre-tension to the fiber or the prepreg tape in the fiber winding process, and the pre-tension is kept stable in the winding process.
S3, heating and curing the carbon fiber winding layer 4:
and (3) placing the wound tank body in a heating furnace for curing, filling the gaps among the fibers with resin under the action of prestress by preheating, heating to the curing temperature of the resin to enable the value to be permanently cured, and finally cooling and forming.
S4, installing an axial reinforcement prefabricated part 5, a reinforcement prefabricated part pad 8 and winding a protection fiber winding layer 7:
the axial reinforcement preform 5 is secured by installing the axial reinforcement preform 5 and reinforcement preform pad 8, and then installing the preform end cap 6. After the installation is finished, the protective fiber winding layer 7 is wound according to a groove reserved on the prefabricated part end cap 6, the functional fiber of the protective fiber winding layer 7 is one or combination of a plurality of basalt fiber, Kevlar fiber, glass fiber and the like, and after the winding is finished, the resin of the protective fiber winding layer 7 is cured, so that the fireproof and environment-resistant performances of the tank body are enhanced.
Further, in order to facilitate the simultaneous transportation of a plurality of hydrogen storage bottles and prevent the relative displacement between the hydrogen storage bottles during the transportation, the embodiment further comprises:
s5, combining and fixing a plurality of hydrogen storage bottles:
stacking a plurality of hydrogen storage bottles, mounting a first bump in a groove on the upper surface of the prefabricated part end cap 6 of the hydrogen storage bottle on the lower layer, stacking the hydrogen storage bottle on the upper layer on the hydrogen storage bottle on the lower layer, and clamping the groove on the lower surface of the prefabricated part end cap 6 of the upper layer on a second bump during placement so as to limit the mutual positions of the upper layer hydrogen storage bottle and the lower layer hydrogen storage bottle. After the placement is completed, the second protrusions of the connecting means 62 are engaged in the grooves of the side surfaces 61 of the preform end caps 6 of the upper and lower hydrogen storage bottles, and then the connecting means 62 and the side surfaces 61 are locked by locking means (e.g., bolts), thereby connecting a plurality of hydrogen storage bottles.
In summary, according to the hydrogen storage bottle with the wound reinforced plastic liner and the winding method provided by the embodiment of the invention, the hydrogen storage bottle is provided with the axial reinforced prefabricated member, the axial reinforced prefabricated member is positioned outside the carbon fiber winding layer, the internal stress structure of the hydrogen storage bottle cannot be influenced, the axial reinforced prefabricated member is positioned in the vacant spaces of four symmetrical corners in the square externally connected with the hydrogen storage bottle, and the bending impact resistance of the lengthened hydrogen storage bottle is enhanced under the condition that the installation space requirement of the hydrogen storage bottle is not increased. Further, be equipped with reinforcing prefab pad 8 around axial reinforcing prefab 5, reinforcing prefab pad 8 is located the external square within range of carbon fiber winding layer 4, under the condition that does not increase hydrogen storage bottle installation space requirement, increases carbon fiber winding layer 4 and axial reinforcing prefab 5's area of contact, the dispersion is strikeed to improve the winding of protective layer and supported, strengthened the anti ability of buckling impact of extension hydrogen storage bottle simultaneously.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims (10)

1. A hydrogen storage bottle wound with a reinforced plastic inner container is characterized by comprising a plastic inner container (1), a winding shaft (2), a carbon fiber winding layer (4), an axial reinforced prefabricated part (5) and a prefabricated part end cap (6).
2. The reinforced plastic liner-wrapped hydrogen storage cylinder according to claim 1, further comprising a reinforced preform mat (8), the reinforced preform mat (8) being located outside the carbon fiber wrapped layer (4), surrounding the axial reinforcement preform (5).
3. The wrapped hydrogen storage bottle according to claim 2, characterized in that the plastic liner (1) comprises a mouthpiece (11), the axis of the mouthpiece (11) being coaxial with the axis of the plastic liner (1).
4. The wound hydrogen storage cylinder with reinforced plastic liner according to claim 3, wherein the winding shaft (2) is sleeved outside the interface (11), and the winding shaft (2) comprises a column part (21) and a brim part (22).
5. The wound hydrogen storage bottle with a reinforced plastic liner as claimed in claim 4, wherein the pillar (21) has a hole (211) in the middle, the hole (211) is a threaded hole, and the cross section of the pillar (21) is a regular hexagon.
6. The wound hydrogen storage bottle with a reinforced plastic liner as claimed in claim 4, wherein the brim (22) is located at the dome-shaped arc of the plastic liner (1), and a hydrogen isolation pad (3) is arranged between the brim (22) and the plastic liner (1).
7. The reinforced plastic liner-wrapped hydrogen storage cylinder as claimed in any one of claims 2 to 6, wherein the carbon fiber-wrapped layer (4) is wrapped around the plastic liner (1) and the wrapping shaft (2).
8. The winding hydrogen storage bottle with the reinforced plastic inner container as claimed in claim 7, wherein the inner surface of the prefabricated member end cap (6) is shaped to correspond to the shoulder of the winding shaft (2) after the carbon fiber winding layer (4) is wound, and the outer surface of the prefabricated member end cap (6) is provided with a clamping groove.
9. The wound hydrogen storage cylinder with reinforced plastic liner according to claim 8, further comprising a protective fiber winding layer (7), wherein the protective fiber winding layer (7) is wound outside the preform end cap (6), the carbon fiber winding layer (4) and the axial reinforcement preform (5).
10. A method of winding a hydrogen storage cylinder around a reinforced plastic liner as claimed in claims 1 to 9, comprising the steps of:
s1, sleeving a winding shaft (2) outside a port (11) at two ends of a plastic inner container (1);
s2, winding a carbon fiber winding layer (4):
s3, heating and curing the carbon fiber winding layer (4);
s4, installing the axial reinforcement prefabricated member (5) and the reinforcement prefabricated member pad (8) and winding the protection fiber winding layer (7).
CN202011061403.9A 2020-09-30 2020-09-30 Reinforced plastic liner winding hydrogen storage bottle and winding method Active CN112197164B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114536802A (en) * 2022-02-22 2022-05-27 中国石油大学(华东) Carbon fiber winding composite material hydrogen storage cylinder winding and spraying integrated manufacturing device

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Publication number Priority date Publication date Assignee Title
JP2000213691A (en) * 1999-01-28 2000-08-02 High Pressure Gas Safety Institute Of Japan Frp pressure container excellent in impact resistance and its manufacturing method and protective container for frp pressure container excellent in impact resistance
DE102016208376A1 (en) * 2016-05-17 2017-11-23 Bayerische Motoren Werke Aktiengesellschaft Pressure vessel for storing fuel in a motor vehicle
CN110925589A (en) * 2019-11-14 2020-03-27 江苏国富氢能技术装备有限公司 Gas cylinder with plastic liner and fully wound fibers
CN210372854U (en) * 2019-05-24 2020-04-21 江苏国富氢能技术装备有限公司 Plastic inner container carbon fiber fully-wound hydrogen storage cylinder opening structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000213691A (en) * 1999-01-28 2000-08-02 High Pressure Gas Safety Institute Of Japan Frp pressure container excellent in impact resistance and its manufacturing method and protective container for frp pressure container excellent in impact resistance
DE102016208376A1 (en) * 2016-05-17 2017-11-23 Bayerische Motoren Werke Aktiengesellschaft Pressure vessel for storing fuel in a motor vehicle
CN210372854U (en) * 2019-05-24 2020-04-21 江苏国富氢能技术装备有限公司 Plastic inner container carbon fiber fully-wound hydrogen storage cylinder opening structure
CN110925589A (en) * 2019-11-14 2020-03-27 江苏国富氢能技术装备有限公司 Gas cylinder with plastic liner and fully wound fibers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114536802A (en) * 2022-02-22 2022-05-27 中国石油大学(华东) Carbon fiber winding composite material hydrogen storage cylinder winding and spraying integrated manufacturing device

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