CN210511025U - Large-volume steel inner container circumferential winding gas cylinder - Google Patents
Large-volume steel inner container circumferential winding gas cylinder Download PDFInfo
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- CN210511025U CN210511025U CN201920983998.XU CN201920983998U CN210511025U CN 210511025 U CN210511025 U CN 210511025U CN 201920983998 U CN201920983998 U CN 201920983998U CN 210511025 U CN210511025 U CN 210511025U
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Abstract
The utility model provides a large capacity steel inner bag ring winding gas cylinder, the water capacity of gas cylinder is 400 supplyes 4000L, nominal pressure is 10-30MPa, the gas cylinder includes the steel inner bag, combined material winding protective layer, preceding end plug and back end plug, the internal and external screw thread is processed at the both ends of steel inner bag, the one end of steel inner bag is screwed fixedly through internal thread and preceding end plug, the other end is screwed fixedly through internal thread and back end plug, the surface cure of steel inner bag has combined material winding protective layer, combined material winding protective layer comprises carbon fiber winding protective layer and glass fiber winding protective layer, glass fiber winding protective layer sets up the outside at carbon fiber winding protective layer. The gas cylinder has the water volume of 400-4000L and the nominal pressure of 10-30MPa, is used for filling high-pressure gas such as natural gas, air, nitrogen and the like, and has the characteristics of large volume-weight ratio, safety, reliability, good fatigue resistance and the like.
Description
Technical Field
The utility model relates to a portable pressure vessel field, what specifically say is a big volume steel inner bag hoop winding gas cylinder.
Background
As a clean and efficient energy source, natural gas is applied more and more widely in various industries such as petrochemical industry, city civil use and the like, so that the position occupied by the natural gas in the urban energy structure in China is more and more important. The expansion of natural gas resource development has also driven the rapid development of natural gas transportation equipment, namely, natural gas transportation long-tube trailers and large-volume long-tube trailer gas cylinders. Under the increasingly strict requirement of the total loading mass of the semitrailer, the increase of the loading mass of the contained medium is limited.
In order to improve the transportation efficiency and reduce the transportation cost, the research and development of the metal liner fiber hoop winding gas cylinder and the long tube trailer with larger volume-weight ratio become the research direction of the industry.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a volume steel inner bag hoop winding gas cylinder, water volume 400 supplyes power of 4000L, nominal pressure 10-30MPa for fill high-pressure gas such as natural gas, air, nitrogen gas, have that the volume-to-weight ratio is big, safe and reliable, fatigue resistance can characteristics such as good.
In order to realize the technical purpose, the adopted technical scheme is as follows: the utility model provides a large capacity steel inner bag ring winding gas cylinder, the water capacity of gas cylinder is 400 supplyes 4000L, nominal pressure is 10-30MPa, the gas cylinder includes the steel inner bag, combined material winding protective layer, preceding end plug and back end plug, the internal and external screw thread is processed at the both ends of steel inner bag, the one end of steel inner bag is screwed fixedly through internal thread and preceding end plug, the other end is screwed fixedly through internal thread and back end plug, the surface cure of steel inner bag has combined material winding protective layer, combined material winding protective layer comprises carbon fiber winding protective layer and glass fiber winding protective layer, glass fiber winding protective layer sets up the outside at carbon fiber winding protective layer.
The carbon fiber winding protective layer is formed by winding a plurality of layers of carbon fibers on the surface of the steel inner container in parallel and annularly at a winding angle of 60-90 degrees, and the glass fiber winding protective layer is formed by winding a plurality of layers of glass fibers on the surface of the steel inner container in 90-120 degrees in parallel and annularly.
The thickness of the composite material winding protective layer is 3-6mm, and the total number of layers of the carbon fiber winding protective layer and the glass fiber winding protective layer (2-2) is 10-30.
The utility model has the advantages that: the steel inner container is adopted to realize the advantages of large volume, high safety and the like, meanwhile, the composite material winding protective layer is wound on the outer side of the steel inner container, the steel inner container in the steel inner container can be prevented from being influenced by ring increase by using the composite material winding protective layer under the condition of reducing the wall thickness, meanwhile, because of the high strength and high modulus of the carbon fiber winding protective layer and the high tensile strength and high elastic coefficient of the glass fiber winding, the stress of the inner container is reduced due to the fact that the carbon fiber is stressed in a layered mode on the outer side and the carbon fiber is stressed on the inner side, the medium loading capacity of the product is improved, meanwhile, the composite material layer can ensure that fragments cannot fly out of the steel inner container under extreme conditions (such as overpressure explosion of the inner container and the like), and the property safety of external personnel is ensured.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1. the device comprises a steel inner container, 2, a composite material winding protective layer, 3, a front end plug, 4, a rear end plug, 2-1, a carbon fiber winding protective layer, 2-2 and a glass fiber winding protective layer.
Detailed Description
A large-volume steel liner ring-wound gas cylinder, the water volume of the gas cylinder is 400-4000L, the nominal pressure is 10-30MPa, the gas cylinder comprises a steel liner 1, a composite material winding protective layer 2, a front end plug 3 and a rear end plug 4, the steel liner 1 is formed integrally by hot spinning through a steel pipe, inner and outer threads are processed at two ends of the steel liner 1, one end of the steel liner 1 is fixedly screwed with the front end plug 3 through internal threads, the other end of the steel liner 1 is fixedly screwed with the rear end plug 4 through internal threads, a gasket can be added between the end plug and the internal threads for sealing, the surface of the steel liner 1 is solidified with the composite material winding protective layer 2, the composite material winding protective layer 2 is solidified at the middle part of the steel liner 1, namely at the part with relatively flat surface and less radian change, the composite material winding protective layer 2 is composed of a carbon fiber winding protective layer 2-1 and, the glass fiber winding protective layer 2-2 is arranged on the outer side of the carbon fiber winding protective layer 2-1.
The carbon fiber winding protective layer 2-1 is formed by winding a plurality of layers of carbon fibers on the surface of the steel inner container 1 in parallel and annularly at a winding angle of 60-90 degrees, and the glass fiber winding protective layer 2-2 is formed by winding a plurality of layers of glass fibers on the surface of the steel inner container 1 in 90-120 degrees in parallel and annularly. The winding directions of the carbon fiber winding protective layer 2-1 and the glass fiber winding protective layer 2-2 are crossed, the arrangement not only can give full play to the performances of the two protective layers, but also can better isolate the external environmental pollution, and simultaneously, the two protective layers are arranged.
The thickness of the composite material winding protective layer 2 is 3-6mm, and the total number of layers of the carbon fiber winding protective layer 2-1 and the glass fiber winding protective layer 2-2 is 10-30.
The steel inner container 1 is provided with an inner thread and an outer thread and a sealing structure, and the steel inner container 3 is formed by hot spinning of a large-caliber seamless steel pipe (nominal outer diameter phi 406-phi 660mm and wall thickness 5-20 mm) made of 4130X, 30CrMo, 4142 and the like. The measured volume reaches more than 500L.
Internal threads at two ends of the steel inner container 1 are respectively screwed with two end plugs, and external pipelines are connected to the internal threads of the end plugs to realize the functions of air charging and discharging; external threads at two ends of the steel inner container 1 are connected with external flanges in a screwing mode, the steel inner container is installed on a specific frame, a plurality of high-pressure air tanks are assembled into a packaging tube bundle, and the packaging tube bundle is installed on a chassis of a long-tube trailer to meet different use requirements.
The composite material winding protection layer 2 is made of high-strength carbon fibers, epoxy resin and glass fibers. The epoxy resin is prepared by mixing CYD128 epoxy resin, a methyl hexahydrophthalic anhydride curing agent and a dimethylbenzylamine accelerator according to a certain ratio (100: 80-100: 25-60: 0.2). Carbon fibers (soaked in epoxy resin) are wound on the steel inner container 1 according to a winding angle of 90 degrees by special fiber winding equipment, the thickness of the composite material layer is 3-6mm, and the number of layers is 10-30. And (3) placing the wound steel liner 1 into a curing furnace for drying and curing.
The large-volume fiber-wound gas cylinder is different from the existing large-volume steel gas cylinder in that the gas cylinder is manufactured by adopting a single-layer steel pipe in the prior art, the wall thickness of the prior art is larger under the same pressure-bearing capacity, and the loaded media are less under the same condition. In the prior art, the single-layer steel cylinder has no protective layer on the outside, so that the surface is easily influenced by the environment in the long-term use process, metal corrosion occurs, and the safety of the product is influenced. The invention adopts the high-strength carbon fiber winding protective layer and is matched with the outer protective glass fiber winding protective layer, the high strength and high modulus of the carbon fiber and the high tensile strength and high elastic coefficient of the glass fiber are utilized, the stress of the liner is obviously reduced, the wall thickness of the liner can be correspondingly reduced, the medium loading capacity of the product is improved, meanwhile, the composite material layer can ensure that the steel liner cannot fly out fragments under extreme conditions (such as overpressure explosion of the liner and the like), and the property safety of external personnel is ensured.
Claims (3)
1. The utility model provides a large capacity steel inner bag hoop winding gas cylinder which characterized in that: the water volume of the gas cylinder is 400-4000L, the nominal pressure is 10-30MPa, the gas cylinder comprises a steel inner container (1), a composite material winding protective layer (2), a front end plug (3) and a rear end plug (4), internal and external threads are processed at two ends of the steel inner container (1), one end of the steel inner container (1) is screwed and fixed with the front end plug (3) through internal threads, the other end of the steel inner container is screwed and fixed with the rear end plug (4) through internal threads, the composite material winding protective layer (2) is solidified on the surface of the steel inner container (1), the composite material winding protective layer (2) is composed of a carbon fiber winding protective layer (2-1) and a glass fiber winding protective layer (2-2), and the glass fiber winding protective layer (2-2) is arranged on the outer side of the carbon fiber winding protective layer (.
2. The large-volume steel liner hoop-wound gas cylinder as defined in claim 1, wherein: the carbon fiber winding protective layer (2-1) is formed by winding a plurality of layers of carbon fibers on the surface of the steel inner container (1) in parallel and annularly at a winding angle of 60-90 degrees, and the glass fiber winding protective layer (2-2) is formed by winding a plurality of layers of glass fibers on the surface of the steel inner container (1) in parallel and annularly at a winding angle of 90-120 degrees.
3. A large volume steel liner hoop wound gas cylinder as claimed in claim 1 or 2, wherein: the thickness of the composite material winding protective layer (2) is 3-6mm, and the total number of layers of the carbon fiber winding protective layer (2-1) and the glass fiber winding protective layer (2-2) is 10-30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920983998.XU CN210511025U (en) | 2019-06-27 | 2019-06-27 | Large-volume steel inner container circumferential winding gas cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920983998.XU CN210511025U (en) | 2019-06-27 | 2019-06-27 | Large-volume steel inner container circumferential winding gas cylinder |
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| Publication Number | Publication Date |
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| CN210511025U true CN210511025U (en) | 2020-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920983998.XU Active CN210511025U (en) | 2019-06-27 | 2019-06-27 | Large-volume steel inner container circumferential winding gas cylinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114773042A (en) * | 2022-03-23 | 2022-07-22 | 康姆罗拉有限公司 | Preparation process of quartz ceramic |
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2019
- 2019-06-27 CN CN201920983998.XU patent/CN210511025U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114773042A (en) * | 2022-03-23 | 2022-07-22 | 康姆罗拉有限公司 | Preparation process of quartz ceramic |
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Address after: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee after: CSSC Shuangrui (Luoyang) special equipment Co.,Ltd. Address before: No.88, Binhe North Road, hi tech Zone, Luoyang City, Henan Province Patentee before: LUOYANG SUNRUI SPECIAL EQUIPMENT Co.,Ltd. |