CN110145681B - Plastic liner full-winding composite gas cylinder - Google Patents
Plastic liner full-winding composite gas cylinder Download PDFInfo
- Publication number
- CN110145681B CN110145681B CN201910439043.2A CN201910439043A CN110145681B CN 110145681 B CN110145681 B CN 110145681B CN 201910439043 A CN201910439043 A CN 201910439043A CN 110145681 B CN110145681 B CN 110145681B
- Authority
- CN
- China
- Prior art keywords
- plastic
- metal interface
- inner container
- bottle mouth
- ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 229920001903 high density polyethylene Polymers 0.000 title claims abstract description 42
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 238000004804 winding Methods 0.000 title abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 65
- 229920003023 plastic Polymers 0.000 claims abstract description 48
- 239000004033 plastic Substances 0.000 claims abstract description 48
- 239000010410 layer Substances 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 9
- 239000004917 carbon fiber Substances 0.000 claims abstract description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000003365 glass fiber Substances 0.000 claims abstract description 5
- 239000011241 protective layer Substances 0.000 claims abstract description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 239000000835 fiber Substances 0.000 abstract description 10
- 239000007789 gas Substances 0.000 description 21
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 3
- 238000000071 blow moulding Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C1/00—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge
- F17C1/02—Pressure vessels, e.g. gas cylinder, gas tank, replaceable cartridge involving reinforcing arrangements
- F17C1/04—Protecting sheathings
- F17C1/06—Protecting sheathings built-up from wound-on bands or filamentary material, e.g. wires
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a plastic liner fully-wound composite gas cylinder, which comprises: the plastic inner container is provided with a metal bottle opening on the bottle opening of the plastic inner container, a carbon fiber reinforced layer and a glass fiber protective layer are sequentially wound on the outer side of the plastic inner container, at least four release grooves with buffer rubber strips are formed in the outer side wall of the plastic inner container, the metal bottle opening is composed of an inner metal interface and an outer metal interface, an inner thread is arranged on the inner wall of the inner metal interface, the inner metal interface is embedded in the bottle opening of the plastic inner container, a sealing groove with an O-shaped ring and a retaining ring is reserved between the outer end of the inner metal interface and the outer end of the bottle opening of the plastic inner container, the outer metal interface is in threaded connection with the outer end of the inner metal interface in a sleeved mode, the inner end of the outer metal interface is inserted into the sealing groove to press the retaining ring and the O-shaped ring, and therefore the O-shaped ring can seal the outer end of the joint between the inner metal interface and the bottle opening of the plastic inner container. The composite gas cylinder bottle mouth has excellent sealing performance, and the plastic liner and the fiber winding layer are not easy to separate.
Description
Technical Field
The invention relates to the field of hydrogen storage equipment, in particular to a full-winding composite gas cylinder with a plastic liner.
Background
The utility model provides a plastics inner bag full winding composite gas cylinder is a light hydrogen storage equipment, this kind of gas cylinder mainly used provides hydrogen for hydrogen energy automobile, and plastics inner bag full winding composite gas cylinder is used for replacing traditional metal gas cylinder with its light in weight, high strength, corrosion-resistant etc. excellent performance, has wide prospect, and this kind of gas cylinder's structure generally includes: the plastic inner container is provided with a high-strength metal bottle opening on the bottle opening of the plastic inner container, the metal bottle opening can be filled into a blow molding mold during blow molding of the plastic inner container, the metal bottle opening can be embedded into the bottle opening of the plastic inner container after the plastic inner container is blow molded, the metal bottle opening is usually used for being connected with a bottle opening valve, a carbon fiber reinforced layer is wound on the outer side of the plastic inner container, and a glass fiber protection layer is wound on the outer side of the carbon fiber reinforced layer. The existing plastic liner fully-wound composite gas cylinder has the following defects: (1) The modulus and the thermal expansion rate difference of the materials of the plastic liner bottle mouth and the metal bottle mouth are large, so that the joint part of the plastic liner bottle mouth and the metal bottle mouth can be cracked due to discontinuous rigidity when being subjected to periodic load; in addition, under the action of the ambient temperature, thermal stress can be generated, and cracks can be formed at the joint part, so that the gas cylinder leaks gas; (2) The plastic liner and the fiber winding layer are often deformed due to thermal stress change, but the deformation of the plastic liner and the fiber winding layer cannot be coordinated with each other due to different deformation amounts of the plastic liner and the fiber winding layer, so that the plastic liner and the fiber winding layer are easy to separate, and after the plastic liner and the fiber winding layer are separated, the composite gas cylinder has potential safety hazards.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: the full-winding composite gas cylinder with the plastic liner has the advantages of excellent sealing performance of the gas cylinder bottleneck and difficult separation of the plastic liner and the fiber winding layer.
In order to solve the problems, the invention adopts the following technical scheme: a plastic liner fully wrapped composite cylinder comprising: the plastic inner container is provided with a metal bottle opening on the bottle opening of the plastic inner container, a carbon fiber reinforcing layer is wrapped and coated on the outer side of the plastic inner container, and a glass fiber protective layer is wrapped and coated on the outer side of the carbon fiber reinforcing layer, and is characterized in that: at least four release grooves are formed in the outer side wall of the plastic inner container, each release groove is circumferentially arranged along the plastic inner container, and a buffer rubber strip capable of filling the release groove is arranged in each release groove; the metal bottle mouth comprises an inner metal interface and an outer metal interface, an inner thread for installing a bottle mouth valve is arranged on the inner ring side wall of the inner metal interface, the inner metal interface is embedded in the plastic inner container bottle mouth and is communicated with the inner cavity of the plastic inner container, a sealing groove is arranged between the outer end of the inner metal interface and the outer end of the plastic inner container bottle mouth, an O-shaped ring and a retainer ring positioned outside the O-shaped ring are arranged in the sealing groove, the retainer ring can block the O-shaped ring, the outer metal interface is in threaded connection with the outer end of the inner metal interface and abuts against the outer end face of the plastic inner container bottle mouth, and the inner end of the outer metal interface is inserted into the sealing groove to press the retainer ring and the O-shaped ring, so that the O-shaped ring can seal the outer end of the joint between the inner metal interface and the plastic inner container bottle mouth.
Further, the above-mentioned plastic liner is a fully wound composite gas cylinder, wherein: the bottom of the release groove is arranged in an arc shape.
Further, the above-mentioned plastic liner is a fully wound composite gas cylinder, wherein: six release grooves are provided.
Further, the above-mentioned plastic liner is a fully wound composite gas cylinder, wherein: the buffer rubber strip is fixedly connected with the release groove in a gluing way.
Further, the above-mentioned plastic liner is a fully wound composite gas cylinder, wherein: the outer ring side wall of the inner metal interface is provided with a fixing ring which is used for being embedded into the inner wall of the plastic inner liner bottle mouth.
Further, the above-mentioned plastic liner is a fully wound composite gas cylinder, wherein: an arc-shaped disc propped against the inner wall of the plastic inner container is arranged at the inner end of the inner metal interface.
The invention has the advantages that: according to the plastic liner full-winding composite gas cylinder, the metal bottle mouth is divided into the inner metal interface and the outer metal interface, so that the O-shaped ring for sealing can be pressed on the outer end of the joint between the inner metal interface and the plastic liner bottle mouth through the outer metal interface, and the hydrogen can be prevented from leaking outwards from the joint between the metal bottle mouth and the plastic liner bottle mouth; in addition, set up the release recess at the plastics inner bag surface for the deformation that the plastics inner bag is heated and structure thermal stress can be released through the release recess, thereby make plastics inner bag deformation diminish, just so can reduce its interact with the fibre winding layer, make plastics inner bag and fibre winding layer be difficult for the separation, place the buffer rubber strip in the release recess, do benefit to stable in structure and be convenient for the winding.
Drawings
Fig. 1 is a schematic structural view of a fully-wound composite gas cylinder with a plastic liner according to the present invention.
FIG. 2 is a schematic view of the structure of section A-A of FIG. 1.
Detailed Description
The invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
As shown in fig. 1 and 2, a plastic liner fully-wound composite gas cylinder includes: the plastic liner 1, install the metal bottleneck 2 on bottleneck of the plastic liner 1, twine and wrap up the carbon fiber reinforcement layer 11 in the outside of the plastic liner 1, twine and wrap up the glass fiber protective layer 12 in the outside of the carbon fiber reinforcement layer 11, there are six releasing grooves 3 on the outer sidewall of the plastic liner 1, each releasing groove 3 is parallel to each other and evenly arrange along the circumference of the plastic liner 1, there is a buffer rubber strip 4 that can fill up the releasing groove 3 in each releasing groove 3, the buffer rubber strip 4 is fixed with the releasing groove 3 in a glue way, so set up in order to more convenient winding fiber; the metal bottle mouth 2 is composed of an inner metal interface 22 and an outer metal interface 21, an inner thread for installing a bottle mouth valve is arranged on the inner ring side wall of the inner metal interface 22, the inner metal interface 22 is embedded in the bottle mouth of the plastic inner container 1 and communicated with the inner cavity of the plastic inner container 1, a sealing groove 5 is arranged between the outer end of the inner metal interface 22 and the outer end of the bottle mouth of the plastic inner container 1, an O-shaped ring 51 and a retainer ring 52 positioned outside the O-shaped ring 51 are arranged in the sealing groove 5, the retainer ring 52 can block the O-shaped ring 51, the outer metal interface 21 is in threaded connection with the outer end of the inner metal interface 22 and abuts against the outer end face of the bottle mouth of the plastic inner container 1, and the inner end of the outer metal interface 21 is inserted into the sealing groove 5 to press the retainer ring 52 and the O-shaped ring 51, so that the O-shaped ring 51 can seal the outer end of the joint between the inner metal interface 22 and the bottle mouth of the plastic inner container 1.
In this embodiment, the bottom of the release groove 3 is configured in an arc shape, so that the deformation of the plastic liner 1 can be released more uniformly through the release groove 3, and the deformation of the plastic liner 1 can be made smaller.
In addition, a fixing ring 221 for being embedded into the inner wall of the bottle mouth of the plastic liner 1 is arranged on the outer ring side wall of the inner metal interface 22. An arc-shaped disc 222 which is abutted against the inner wall of the plastic liner 1 is arranged on the inner end of the inner metal interface 22. This is provided to make the connection between the inner metal interface 22 and the mouth of the plastic liner 1 more firm.
Claims (6)
1. A plastic liner fully wrapped composite cylinder comprising: the plastic inner container is provided with a metal bottle opening on the bottle opening of the plastic inner container, a carbon fiber reinforcing layer is wrapped and coated on the outer side of the plastic inner container, and a glass fiber protective layer is wrapped and coated on the outer side of the carbon fiber reinforcing layer, and is characterized in that: at least four release grooves are formed in the outer side wall of the plastic inner container, each release groove is circumferentially arranged along the plastic inner container, and a buffer rubber strip capable of filling the release groove is arranged in each release groove; the metal bottle mouth comprises an inner metal interface and an outer metal interface, an inner thread for installing a bottle mouth valve is arranged on the inner ring side wall of the inner metal interface, the inner metal interface is embedded in the plastic inner container bottle mouth and is communicated with the inner cavity of the plastic inner container, a sealing groove is arranged between the outer end of the inner metal interface and the outer end of the plastic inner container bottle mouth, an O-shaped ring and a retainer ring positioned outside the O-shaped ring are arranged in the sealing groove, the retainer ring can block the O-shaped ring, the outer metal interface is sleeved on the outer end of the inner metal interface and is in threaded connection with the inner metal interface and abuts against the outer end face of the plastic inner container bottle mouth, and the inner end of the outer metal interface is inserted into the sealing groove to press the retainer ring and the O-shaped ring, so that the O-shaped ring can seal the outer end of the joint between the inner metal interface and the plastic inner container bottle mouth.
2. The plastic liner fully wrapped composite cylinder of claim 1, wherein: the bottom of the release groove is arranged in an arc shape.
3. The plastic liner fully wrapped composite cylinder of claim 1, wherein: six release grooves are provided.
4. The plastic liner fully wrapped composite cylinder of claim 1, wherein: the buffer rubber strip is fixedly connected with the release groove in a gluing way.
5. The plastic liner fully wrapped composite cylinder of claim 1, wherein: the outer ring side wall of the inner metal interface is provided with a fixing ring which is used for being embedded into the inner wall of the plastic inner liner bottle mouth.
6. The plastic liner fully wrapped composite cylinder of claim 1, wherein: an arc-shaped disc propped against the inner wall of the plastic inner container is arranged at the inner end of the inner metal interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910439043.2A CN110145681B (en) | 2019-05-24 | 2019-05-24 | Plastic liner full-winding composite gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910439043.2A CN110145681B (en) | 2019-05-24 | 2019-05-24 | Plastic liner full-winding composite gas cylinder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110145681A CN110145681A (en) | 2019-08-20 |
| CN110145681B true CN110145681B (en) | 2024-05-07 |
Family
ID=67593153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910439043.2A Active CN110145681B (en) | 2019-05-24 | 2019-05-24 | Plastic liner full-winding composite gas cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110145681B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586939A (en) * | 2021-07-13 | 2021-11-02 | 北京国家新能源汽车技术创新中心有限公司 | High-pressure hydrogen storage bottle |
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|---|---|---|---|---|
| CN101832389A (en) * | 2010-06-02 | 2010-09-15 | 刘强 | Fiber reinforced composite pressure bottle |
| CN102062211A (en) * | 2009-11-11 | 2011-05-18 | 八千代工业株式会社 | Pressure vessel having improved sealing arrangement |
| DE102010023923A1 (en) * | 2010-06-16 | 2011-12-22 | Benteler Sgl Gmbh & Co. Kg | Container i.e. liquefied gas tank, for use in motor vehicle, has liner formed as container inner wall area, and container outer wall area partially or completely surrounding inner wall area and made from carbon-fiber material |
| JP2016183709A (en) * | 2015-03-26 | 2016-10-20 | 株式会社明治ゴム化成 | High-pressure gas storage vessel and method of manufacturing the same |
| CN108131554A (en) * | 2017-12-31 | 2018-06-08 | 亚普汽车部件股份有限公司 | A kind of sealing device of high-pressure composite containers plastic inner container |
| CN108426165A (en) * | 2018-05-15 | 2018-08-21 | 北京天海工业有限公司 | Nonmetallic liner winding gas cylinder |
| CN108622562A (en) * | 2017-03-15 | 2018-10-09 | 本田技研工业株式会社 | High pressure storage tank |
| CN109027676A (en) * | 2018-08-06 | 2018-12-18 | 亚普汽车部件股份有限公司 | Sealing structure for high-pressure composite containers |
| CN210165179U (en) * | 2019-05-24 | 2020-03-20 | 江苏国富氢能技术装备有限公司 | Plastic liner fully-wound composite gas cylinder |
-
2019
- 2019-05-24 CN CN201910439043.2A patent/CN110145681B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102062211A (en) * | 2009-11-11 | 2011-05-18 | 八千代工业株式会社 | Pressure vessel having improved sealing arrangement |
| CN101832389A (en) * | 2010-06-02 | 2010-09-15 | 刘强 | Fiber reinforced composite pressure bottle |
| DE102010023923A1 (en) * | 2010-06-16 | 2011-12-22 | Benteler Sgl Gmbh & Co. Kg | Container i.e. liquefied gas tank, for use in motor vehicle, has liner formed as container inner wall area, and container outer wall area partially or completely surrounding inner wall area and made from carbon-fiber material |
| JP2016183709A (en) * | 2015-03-26 | 2016-10-20 | 株式会社明治ゴム化成 | High-pressure gas storage vessel and method of manufacturing the same |
| CN108622562A (en) * | 2017-03-15 | 2018-10-09 | 本田技研工业株式会社 | High pressure storage tank |
| CN108131554A (en) * | 2017-12-31 | 2018-06-08 | 亚普汽车部件股份有限公司 | A kind of sealing device of high-pressure composite containers plastic inner container |
| CN108426165A (en) * | 2018-05-15 | 2018-08-21 | 北京天海工业有限公司 | Nonmetallic liner winding gas cylinder |
| CN109027676A (en) * | 2018-08-06 | 2018-12-18 | 亚普汽车部件股份有限公司 | Sealing structure for high-pressure composite containers |
| CN210165179U (en) * | 2019-05-24 | 2020-03-20 | 江苏国富氢能技术装备有限公司 | Plastic liner fully-wound composite gas cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110145681A (en) | 2019-08-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Country or region after: China Address after: 215600 No. 236, Guotai North Road, Zhangjiagang City, Suzhou City, Jiangsu Province Applicant after: Jiangsu Guofu hydrogen energy technology equipment Co.,Ltd. Address before: 215600 19 Fuxin (Chenxin) road, yangshe Town, Zhangjiagang City, Jiangsu Province Applicant before: Jiangsu Guofu Hydrogen Energy Technology Equipment Co.,Ltd. Country or region before: China |
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| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |