CN213872192U - Plastic lining fiber reinforced composite material high-pressure hydrogen storage cylinder - Google Patents
Plastic lining fiber reinforced composite material high-pressure hydrogen storage cylinder Download PDFInfo
- Publication number
- CN213872192U CN213872192U CN202022505887.3U CN202022505887U CN213872192U CN 213872192 U CN213872192 U CN 213872192U CN 202022505887 U CN202022505887 U CN 202022505887U CN 213872192 U CN213872192 U CN 213872192U
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- gas cylinder
- fiber
- plastic
- metal gas
- metal
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- 239000004033 plastic Substances 0.000 title claims abstract description 42
- 229920003023 plastic Polymers 0.000 title claims abstract description 42
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 23
- 239000001257 hydrogen Substances 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 title claims abstract description 23
- 238000003860 storage Methods 0.000 title claims abstract description 23
- 239000003733 fiber-reinforced composite Substances 0.000 title claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 96
- 229910052751 metal Inorganic materials 0.000 claims abstract description 92
- 239000002184 metal Substances 0.000 claims abstract description 92
- 239000000835 fiber Substances 0.000 claims abstract description 31
- 239000010410 layer Substances 0.000 claims abstract description 27
- 239000003365 glass fiber Substances 0.000 claims abstract description 12
- 239000011241 protective layer Substances 0.000 claims abstract description 8
- 239000000853 adhesive Substances 0.000 claims abstract description 4
- 230000001070 adhesive effect Effects 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 claims description 14
- 238000007906 compression Methods 0.000 claims description 14
- 230000002787 reinforcement Effects 0.000 claims description 7
- 239000011159 matrix material Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 4
- 229920002292 Nylon 6 Polymers 0.000 claims description 4
- 229920002302 Nylon 6,6 Polymers 0.000 claims description 4
- 239000004917 carbon fiber Substances 0.000 claims description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 3
- 229920000271 Kevlar® Polymers 0.000 claims description 3
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000005007 epoxy-phenolic resin Substances 0.000 claims description 3
- 239000004761 kevlar Substances 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 229910052797 bismuth Inorganic materials 0.000 claims 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims 1
- 239000004945 silicone rubber Substances 0.000 claims 1
- 229920001903 high density polyethylene Polymers 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 6
- 239000003292 glue Substances 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 210000004907 gland Anatomy 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- XQUPVDVFXZDTLT-UHFFFAOYSA-N 1-[4-[[4-(2,5-dioxopyrrol-1-yl)phenyl]methyl]phenyl]pyrrole-2,5-dione Chemical compound O=C1C=CC(=O)N1C(C=C1)=CC=C1CC1=CC=C(N2C(C=CC2=O)=O)C=C1 XQUPVDVFXZDTLT-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920003192 poly(bis maleimide) Polymers 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- NTXGQCSETZTARF-UHFFFAOYSA-N buta-1,3-diene;prop-2-enenitrile Chemical compound C=CC=C.C=CC#N NTXGQCSETZTARF-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
本实用新型公开了一种塑料内衬纤维增强复合材料高压储氢气瓶。包括塑料内衬、金属气瓶开口端和金属气瓶尾端；缠绕有预应力的纤维增强层的塑料内衬开口端与金属气瓶开口端的下端面用胶粘剂粘合，塑料内衬下端与金属气瓶尾端贴合，气瓶上端的纤维增强层与金属气瓶开口端的轴向上端面贴合，气瓶下端的纤维增强层与金属气瓶尾端的轴向下端面贴合，纤维增强层的外侧缠绕有玻璃纤维保护层，两端封头的外侧设有气瓶封头防撞层。塑料内衬开口端与金属气瓶开口端的轴向下端面间设有O型圈和防松垫片，用螺母与弹簧垫片压紧。采用O型圈密封、胶合密封和塑料内衬自紧密封三重密封，当气瓶内压力越高，塑料内衬与金属气瓶开口端间压得越紧，气体泄漏越难。
The utility model discloses a plastic-lined fiber-reinforced composite material high-pressure hydrogen storage bottle. Including plastic lining, metal gas cylinder open end and metal gas cylinder tail; the plastic lining open end wrapped with prestressed fiber reinforced layer and the lower end of the metal gas cylinder open end are bonded with adhesive, and the plastic lining lower end is bonded with metal The tail end of the gas cylinder is fitted, the fiber reinforced layer at the upper end of the gas cylinder is fitted with the axial upper end face of the open end of the metal gas cylinder, the fiber reinforced layer at the lower end of the gas cylinder is fitted with the axial lower end face of the tail end of the metal gas cylinder, and the fiber reinforced layer The outer side of the cylinder is wound with a glass fiber protective layer, and the outer side of the end heads is provided with an anti-collision layer for the cylinder head. An O-ring and an anti-loose washer are arranged between the open end of the plastic liner and the axial lower end face of the open end of the metal gas cylinder, and are pressed with nuts and spring washers. O-ring seal, glue seal and plastic lining self-tightening seal are used for triple sealing. When the pressure in the gas cylinder is higher, the tighter the pressure between the plastic lining and the open end of the metal gas cylinder, the harder it is for gas to leak.
Description
Technical Field
The utility model relates to a high-pressure hydrogen storage facility especially relates to a plastics inside lining fiber reinforcement combined material high pressure hydrogen storage cylinder.
Background
With the continuous development of new energy automobiles, hydrogen energy is widely applied as a clean and efficient renewable energy source. High-pressure hydrogen storage is still a current main hydrogen storage mode, and most of the currently used gas cylinder liners are metal liners, and carbon fiber glass fibers and the like are wound on the outer layers. With the improvement of the hydrogen storage density requirement of unit mass, the plastic lining composite hydrogen storage cylinder is developed.
There are many patents related to the structure of the iv-type gas cylinder, such as korean patent US7648042B2 "a metal cylinder port design for a composite High-pressure gas cylinder", US20170276294a1 "High-gas-insulated metallic non-gaseous-cylinder for a High-pressure composite vessel", US20170276294a1 "Boss and liner interface for a pressure vessel", toyota JP 200606060484 "High-pressure gas cylinder seal", international patent PCT/JP2009/060067 "of toyota auto corporation," manufacturing method of gas cylinder, and "new practical patent CN 201721786654.7" of medium material science and technology (chengdu) limited "tail structure of a High-pressure gas cylinder with an outer diameter of a plastic liner larger than 200 mm. The patents make relevant designs on the structure and the sealing method of the gas cylinder, the structure forms are various, and sealing can be realized in the gas storage using process. However, these structures are complicated to manufacture, require high machining accuracy, and are relatively expensive.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems existing in the background technical field, the utility model aims to provide a plastic lining fiber reinforced composite material high-pressure hydrogen storage cylinder which has simple structure, simple manufacture and reliable sealing.
In order to achieve the purpose of the invention, the utility model adopts the technical scheme that:
the utility model discloses a: the plastic liner, the opening end of the metal gas cylinder and the tail end of the metal gas cylinder; the outer side of the fiber reinforced layer is wound with a glass fiber protective layer, and the outer sides of the glass fiber protective layers of the end sockets at two ends of the metal gas cylinder are provided with gas cylinder end socket anti-collision layers;
an O-shaped ring is arranged between the opening end of the plastic lining and the axial lower end surface of the opening end of the metal gas cylinder, and the O-shaped ring, an inner check ring on the inner side and an outer check ring on the outer side are arranged in an O-shaped ring groove on the axial lower end surface of the opening end of the metal gas cylinder; the O-shaped ring is screwed with the thread at the lower end of the opening end of the metal gas cylinder through the plastic lining, the anti-loosening gasket and the spring gasket in sequence and the compression nut; the anti-loosening gasket is uniformly provided with a plurality of metal sheets along the outer circumference; the outer side of the lower end of the opening end of the metal gas cylinder, which is provided with the thread, is provided with a groove, and the width of the groove is larger than that of the metal sheet on the anti-loosening gasket.
The opening end of the metal gas cylinder is of an axisymmetric cylindrical structure with two small ends and a large middle part, and a through hole is formed in the center of the opening end of the metal gas cylinder; the outer side of the upper port of the opening end of the metal gas cylinder is provided with a raised spigot which prevents the fiber from overflowing during winding, and the inner side of the upper port is provided with threads.
The locking gasket is a metal ring, the inner side of the locking gasket is radially provided with a bulge, and the outer circumference of the locking gasket is provided with a plurality of bulges capable of being bent.
The large end of the compression nut is cylindrical, the small end of the compression nut is cylindrical metal of the hexagon nut, a groove is formed in the outer circumference of the cylindrical large end of the compression nut, the width of the groove is larger than the width of a protrusion on the annular outer circumference of the anti-loosening gasket, and the depth of the groove is 3-5 mm.
The tail end of the metal gas cylinder is arranged between the plastic lining and the fiber reinforced resin matrix composite material layer, and a concave hole which does not penetrate through the thickness direction of the gas cylinder is formed in the lower end of the shaft center of the tail end of the metal gas cylinder.
The fiber is carbon fiber, boron fiber, Kevlar fiber or glass fiber.
The fiber reinforced layer matrix is epoxy resin, phenolic resin or bismaleimide resin.
The material of the opening end of the metal gas cylinder and the material of the tail end of the metal gas cylinder are aluminum alloy or stainless steel.
The plastic lining material is nylon 6 or nylon 66.
The O-shaped ring is made of butadiene-acrylonitrile rubber or silicon rubber.
The utility model has the advantages that:
1) light weight and high gas storage density: the utility model discloses a nylon 6, nylon 66 etc. make the gas cylinder inside lining, and the inside lining adopts recycling welded method processing after the injection moulding to form, compares in other technologies such as blow molding, and the inside lining precision that adopts injection moulding process to obtain is high, the compactness is good, and the porosity is lower. Lighter in weight compared to metal lined type iii gas cylinders.
2) The metal gas cylinder open end department adopts the sealing on the axial terminal surface, sealing performance is good, adopt multiple sealed reliable of ensureing to seal between metal gas cylinder open end axial terminal surface and plastics inside lining contact surface, the sealed O type circle that adopts on the metal gas cylinder open end axial terminal surface of first layer is sealed, retrain with interior shelves circle and outer shelves circle to O type circle and prevent the extrusion destruction, there is locking gasket above the plastics inside lining with O type circle contact, spring shim and gland nut compress tightly, and there is locking gasket to pin gland nut and prevent the pine in service and take off, the gas tightness has effectively been ensured. The second is sealed again, adopts special adhesive to bond metal gas cylinder open end and plastics inside lining contact surface between metal gas cylinder open end axial terminal surface and plastics inside lining contact surface, has further strengthened sealed effect, and the effectual material of having avoided leads to warping too big, the problem of sealed inefficacy because of the difference. The third is that it is sealed to adopt the self-tightening type to seal the design, and pressure in the gas cylinder is higher, and gas pressure is bigger to the plastic lining effort, and it is tighter to press between plastic lining and the metal gas cylinder open end, and it is harder that gas passes through the clearance leakage between plastic lining and the metal gas cylinder open end.
Drawings
Fig. 1 is a sectional view of the structure of the present invention.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is a front sectional view of the open end of the metal cylinder.
FIG. 4 is a top view of a lock washer.
Fig. 5 is a top view of the compression nut.
In the figure: 1. the gas cylinder head anticollision layer, 2, the glass fiber protective layer, 3, the fibre enhancement layer, 4, metal gas cylinder open end, 5, interior retaining ring, 6, outer retaining ring, 7, the plastics inside lining, 8, O type circle, 9, locking gasket, 10, spring gasket, 11, gland nut, 12, metal gas cylinder tail end.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, the utility model comprises a plastic lining 7, a metal gas cylinder opening end 4 and a metal gas cylinder tail end 12; the winding has prestressed fiber reinforcement layer 3 outside plastic liner 7, the axial lower terminal surface of 7 open ends of plastic liner and metal gas cylinder open end 4 is bonded with the adhesive, the up end laminating of 7 lower extremes of plastic liner and metal gas cylinder tail end 12, fiber reinforcement layer 3 and the axial up end laminating of metal gas cylinder open end 4 of 7 upper extremes of plastic liner, fiber reinforcement layer 3 and the axial lower terminal surface laminating of metal gas cylinder tail end 12 of 7 lower extremes of plastic liner, the outside winding of fiber reinforcement layer 3 has glass fiber protective layer 2, the outside of the glass fiber protective layer 2 of metal gas cylinder both ends head is equipped with gas cylinder head anticollision layer 1.
An O-shaped ring 8 is arranged between the opening end of the plastic lining 7 and the axial lower end surface of the opening end 4 of the metal gas cylinder, and the O-shaped ring 8, an inner check ring 5 on the inner side and an outer check ring 6 on the outer side are arranged in an O-shaped ring groove on the axial lower end surface of the opening end 4 of the metal gas cylinder; the O-shaped ring 8 is screwed with the thread at the lower end of the opening end 4 of the metal gas cylinder through a plastic lining 7, a locking gasket 9 and a spring gasket 10 in sequence by a compression nut 11; a plurality of metal sheets are uniformly distributed on the anti-loosening gasket 9 along the outer circumference; the outer side of the lower end thread of the metal gas cylinder opening end 4 is provided with a groove, and the width of the groove is more than 1mm larger than the width of a metal sheet on the anti-loosening gasket 9.
As shown in fig. 1, 2 and 3, the open end 4 of the metal gas cylinder is an axisymmetric cylindrical structure with two small ends and a large middle part, and a through hole is formed in the center of the open end 4 of the metal gas cylinder; a raised spigot for preventing the overflow of fibers during winding is arranged outside the upper port of the opening end 4 of the metal gas cylinder, and a thread is arranged inside the upper port; an O-shaped ring groove is arranged on the surface of the axial lower end surface of the opening end 4 of the metal gas cylinder, which is attached to the plastic lining 7.
As shown in fig. 1, 2 and 4, the anti-loose pad 9 is a metal ring, a protruding metal sheet is radially arranged on the inner side of the ring of the anti-loose pad 9, and a plurality of (3-8) bendable protruding metal sheets are arranged on the outer circumference of the ring of the anti-loose pad 9.
As shown in fig. 1, 2 and 5, the large end of the compression nut 11 is cylindrical, the small end of the compression nut is cylindrical metal of a hexagon nut, a groove is formed on the outer circumference of the cylindrical large end of the compression nut 11, the width of the groove is more than 1mm larger than the width of the protrusion on the annular outer circumference of the anti-loose gasket 9, and the depth of the groove is 3-5 mm.
As shown in fig. 1, the tail end 12 of the metal gas cylinder is arranged between the plastic lining 7 and the fiber reinforced resin matrix composite material layer 3, and a concave hole which does not penetrate through the thickness direction of the gas cylinder is arranged at the lower end of the axial center of the tail end 12 of the metal gas cylinder for weight reduction.
The fiber is carbon fiber, boron fiber, Kevlar fiber or glass fiber and the like.
The fiber reinforced layer matrix is epoxy resin, phenolic resin or bismaleimide resin and the like.
The material of the opening end 4 of the metal gas cylinder and the material of the tail end 12 of the metal gas cylinder are aluminum alloy or other stainless steel or high-strength steel.
The plastic lining 7 is made of polymer materials such as nylon 6, nylon 66 or polypropylene.
The O-shaped ring 8 is made of sealing materials such as nitrile rubber, silicon rubber or fluororubber and the like with hydrogen corrosion resistance.
The manufacturing process of the high-pressure hydrogen storage cylinder made of the plastic lining fiber reinforced composite material comprises the following steps:
1) the plastic lining 7 is divided into two halves, each half is processed by an injection molding process, and then a complete plastic lining is spliced by circular seams by using a welding method.
2) An inner retainer ring 5, an O-shaped ring 8 and an outer retainer ring 6 are sequentially placed into an O-shaped ring groove on the axial lower end face of the opening end 4 of the metal gas cylinder, one end of the opening end 4 of the metal gas cylinder, which is provided with the O-shaped ring, is pressed into the opening end of the plastic lining 7, and the axial lower end face of the opening end 4 of the metal gas cylinder is glued with the outer edge of the plastic lining 7 after being tightly attached.
3) The anti-loosening gasket 9 and the spring gasket 10 are sequentially placed on a lower cylindrical thread of the open end 4 of the metal gas cylinder, the cylindrical end opening of the compression nut 11 is screwed on the lower cylindrical thread of the open end 4 of the metal gas cylinder, the O-shaped ring 8 and the plastic lining 7 are compressed and sealed, and then the metal sheet on the outer circumference of the anti-loosening gasket 9 is bent and embedded into an outer side groove of the compression nut 11.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022505887.3U CN213872192U (en) | 2020-11-03 | 2020-11-03 | Plastic lining fiber reinforced composite material high-pressure hydrogen storage cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022505887.3U CN213872192U (en) | 2020-11-03 | 2020-11-03 | Plastic lining fiber reinforced composite material high-pressure hydrogen storage cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN213872192U true CN213872192U (en) | 2021-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022505887.3U Withdrawn - After Issue CN213872192U (en) | 2020-11-03 | 2020-11-03 | Plastic lining fiber reinforced composite material high-pressure hydrogen storage cylinder |
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| Country | Link |
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| CN (1) | CN213872192U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228764A (en) * | 2020-11-03 | 2021-01-15 | 浙江大学 | Plastic lined fiber reinforced composite material high pressure hydrogen storage cylinder |
| CN114811426A (en) * | 2022-03-14 | 2022-07-29 | 中科南京未来能源系统研究院 | A high-pressure hydrogen storage device based on micro-nano glass fiber tubes |
-
2020
- 2020-11-03 CN CN202022505887.3U patent/CN213872192U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228764A (en) * | 2020-11-03 | 2021-01-15 | 浙江大学 | Plastic lined fiber reinforced composite material high pressure hydrogen storage cylinder |
| CN112228764B (en) * | 2020-11-03 | 2025-02-11 | 浙江大学 | Plastic lined fiber reinforced composite high pressure hydrogen storage cylinder |
| CN114811426A (en) * | 2022-03-14 | 2022-07-29 | 中科南京未来能源系统研究院 | A high-pressure hydrogen storage device based on micro-nano glass fiber tubes |
| CN114811426B (en) * | 2022-03-14 | 2024-04-16 | 中科南京未来能源系统研究院 | A high-pressure hydrogen storage device based on micro-nano glass fiber tubes |
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