CN204164648U - A kind of composite material vessel - Google Patents
A kind of composite material vessel Download PDFInfo
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- CN204164648U CN204164648U CN201420496884.XU CN201420496884U CN204164648U CN 204164648 U CN204164648 U CN 204164648U CN 201420496884 U CN201420496884 U CN 201420496884U CN 204164648 U CN204164648 U CN 204164648U
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- composite material
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- material vessel
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Abstract
The utility model discloses a kind of composite material vessel, comprising: an inner bag, and this inner bag is for storing pressurized gas; One continuous fiber, this continuous fiber is wound in this outer surface of liner by a predetermined angle and forms at least one deck composite layer; One affix, this affix is positioned at the interlayer of this composite layer and/or internal surface and/or outer surface, ftractures along fiber direction for preventing this composite layer.
Description
Technical field
The utility model relates to a kind of gas transport technology, particularly relates to a kind of composite material vessel.
Background technique
For the transport of the gases such as rock gas, hydrogen, helium in prior art, mainly realize transport by improving the mode storing pressure.Along with the development of gas industry, the pressure demand of atmosphere storage cask (gas cylinder) is also being improved constantly.
The high-pressure composite containers (gas cylinder) produced in prior art, its inner bag is generally metallic material and makes.In order to increase volume and the bearing capacity of clad vessel (gas cylinder), common way adopts termination spinning necking method to be processed into inner bag with high-pressure seamless metal tube, and be wound around one deck high tensile strength fibrous material at the outer surface of inner bag, utilize the pulling force of high tensile strength fibrous material to strengthen the bearing capacity of inner bag.In prior art, because the container (gas cylinder) adopting the shaping surface of System of Filament Winding Process to have composite layer unavoidably there will be cracking along fiber direction or be full of cracks after the application of the overpressure.Along with the increase of access times and the impact of specific environment, these crackings or be full of cracks have the trend of expansion, and the serious whole composite layer that more can make ftractures.
In view of this, be badly in need of in prior art wanting a kind of new technology effectively can reduce or eliminate the cracking of composite layer.
Model utility content
In order to overcome the defect existed in prior art, the utility model provides a kind of minimizing even to eliminate the composite material vessel of composite layer cracking and the forming method of composite layer thereof.
In order to realize above-mentioned model utility object, the utility model discloses a kind of composite material vessel, comprising: an inner bag, and this inner bag is for storing gas; One continuous fiber, this continuous fiber is wound in this outer surface of liner by a predetermined angle and forms at least one deck composite layer; One affix, this affix is positioned at the interlayer of this composite layer and/or internal surface and/or outer surface, ftractures for preventing this composite layer.
Further, this affix is between two composite layers.
Further, this affix is fabric or nonwoven.
Further, the shape of this affix is threadiness, sheet, cotton-shaped, block.
Further, this affix is made up of metal or nonmetallic material.
Further, this affix is made up of fiber-like material.
Further, this fiber-like material is made up of one or more in following material: carbon fiber, glass fibre, aramid fibre, polyester fibre, steel fiber.
Further, this continuous fiber is circumferentially wound around this outer surface of liner.
Further, this continuous fiber is along this outer surface of liner of spiral wound.
Further, this affix spreads along the direction vertical with this hoop and applies.
Compared with prior art, the forming technique of composite material vessel provided by the utility model and composite layer thereof, play longitudinally (axis) strengthening action in container wound composite layer inside, effectively can prevent the generation that composite material ftractures or chaps; Effectively can prevent the direction cracking of wound composite layer surface along Filament-wound Machine or the extension of be full of cracks in container Long-Time Service process simultaneously.This stabilizes the performance of container to a certain extent, thus improves container Security in use.
Accompanying drawing explanation
Can to be described in detail by following model utility and institute's accompanying drawings is further understood about advantage of the present utility model and spirit.
Fig. 1 is the structural representation of the composite material vessel involved by the utility model;
Fig. 2 is the close-up schematic view of the composite material vessel involved by the utility model.
Embodiment
Specific embodiment of the utility model is described in detail below in conjunction with accompanying drawing.
Because existing employing fibrous ring is to the shaping composite material vessel (or gas ballon) of winding shaping process, the composite layer shrinkage to each other that the outer surface due to built-in metal inner tube and metal inner tube is wound around is inconsistent.Gas cylinder is in the process repeatedly filled, the length of gas cylinder has extension, ductility due to metallic material is obviously better than the ductility of composite material, in the process of therefore repeatedly resetting at gas cylinder, the length that the length that metal extends extends considerably beyond composite material, will cause the hoop of composite surface layer to ftracture like this.Therefore there will be the cracking along fiber direction or be full of cracks after the application of the overpressure, along with the increase of access times and the impact of specific environment, these crackings or be full of cracks have the trend of expansion, and serious meeting makes whole composite layer ftracture.Therefore, the purpose of this utility model is to provide the forming method of a kind of composite material vessel and composite layer thereof effectively can suppress the cracking of continuous fiber layer.
The utility model calculates fibrous ring to the longitudinal force of mating with it when being wound around according to mechanical analysis, in composite layer forming process, this is strengthened technology application wherein, realizing container is exerting pressure in loading process, when the composite layer of gas cylinder ftractures along fiber direction, the pulling force that one perpendicular with cracking direction is provided, thus improves cracking phenomena and the long-term cracking extension phenomenon on surface.
As shown in Figure 1, Fig. 1 is the structural representation of the composite material vessel involved by the utility model.This composite material vessel can be the bottle for holding pressurized gas, also can be the pipeline holding pressurized gas, liquid, solid.Fig. 1 is wherein a kind of mode of execution of the present utility model, and in this mode of execution, this container 2 high-quality seamless steel pipe is made, and employing termination, the two ends spinning necking method of steel pipe is processed as two bottlenecks 3.Bottleneck 3 disposed thread is used for fixing front end plug and rear end plug.Wherein front end arranges air inlet beyond the Great Wall and to give vent to anger valve, and rear end arranges a safety relief device (not shown) beyond the Great Wall.In another embodiment, this steel cylinder also only can comprise a port.
The outer surface of this steel cylinder 2 comprises a composite layer 1.Composite layer 1 usually have continuous fiber circumferentially (a direction) coiling form.Composite layer 1 only can cover the part surface of steel cylinder 2, also can cover all surfaces of steel cylinder 2, and the outer surface comprising bottleneck 3 covers without exception.Composite material vessel illustrated in fig. 1 is a kind of composite material vessel of typical hoop wrap style.The feature that hoop is wound around is that the coiling angle of continuous fiber is almost vertical with the axis (b direction) of gas cylinder.The technical problem that the gas cylinder that hoop is wound around easily occurs is, when being full of pressurized gas in bottle, because the audience rating of metal inner tube and composite layer is inconsistent, causes composite layer to occur the cracking in hoop (a direction).The utility model, by longitudinally providing an equilibrant force, ftractures to overcome hoop.
In another embodiment, composite material vessel adopts full winding or wide-angle canoe.In time adopting full winding or wide-angle to be wound around, there will be crackle in the direction parallel along continuous fiber, according to technological scheme provided by the utility model, need to provide an equilibrant force, to overcome cracking in the angle vertical with continuous fiber.
As shown in Figure 2, Fig. 2 is the close-up schematic view of the composite material vessel involved by the utility model.Inconsistent with prior art, composite layer 1 provided by the utility model, except comprising continuous fiber 10, also comprises an affix 11.This is to increase the longitudinal direction matched with hoop tension (the b direction in a Fig. 1) power in composite layer forming process.Exerting pressure in loading process in order to realize container, awarding hoop and to ftracture a longitudinal pulling force, thus improving the cracking phenomena on surface and long-term cracking extends phenomenon.
In a kind of preferred embodiment, continuous fiber 10 and affix 11 are continuously shaped, and namely one deck continuous fiber 10 covers one deck affix 11 above or below.Affix 11 can be fabric also can be nonwoven.Wherein fabric refers to by the material knitted line intersection and formed after knot of more than two.Affix 11 can be fibrous material, can be floccule, also can be block, tablet.If fibrous material, then the orientation of this affix 11 longitudinally parallel or with longitudinally extend at an angle.
Affix 11 can be made up of carbon fiber, glass fibre, aramid fibre, polyester fibre, steel fiber.Carbon fiber (carbon fiber is called for short CF) is the tencel material of the high strength of a kind of carbon content more than 95%, high modulus fibre.It to be piled up along fiber axial direction by organic fibers such as flake graphite crystallites to form, the micro crystal graphite material obtained through carbonization and graphitization processing.Carbon fiber includes but not limited to as polyacrylonitrile-based carbon fibre, asphalt base carbon fiber, viscose-based carbon fiber, phenolic aldehyde base carbon fibre, gas-phase growth of carbon fibre.Glass fibre (glass fiber or fiberglass) refers to the composition material that to be silica, aluminium oxide, calcium oxide, boric oxide, magnesium oxide, sodium oxide etc. formed through high temperature melting, wire drawing, doff, the technique such as to weave cotton cloth.Glass fibre comprises but is not limited to alkali-free glass fibre, medium-alkali glass fibre, high alkali glass fibre, high-strength glass fibre, high-modulus glass fiber, resurrection glass fibre, alkali-resistant glass fibre and other glass fibres.Aramid fibre full name is Fanglun 1414 (Aramid fiber), comprises contraposition aramid fiber (PPTA) and a position aramid fiber (PMIA).Steel fiber (Steel Fiber) mainly refers to by metal (iron, ferro-alloy, steel etc.) steel fiber that causes, slenderness ratio (the ratio of length of staple and its diameter is made to cut off finer wire method, cold-rolling strip steel shearing, steel ingot milling or molten steel rapid condensation method, when cross section of fiber is non-circular, adopt the diameter of the conversion representative section area of a circle) be 40 ~ 80 fiber.
The utility model also provides a kind of forming method of composite material simultaneously, realize by adding fabric in hoop Wound wound composite forming process, fabric scope described here is comparatively extensive, as: carbon fibre fabric, glasscloth, aramid fabric or the strong thing of its blend fiber etc.; Also the fabric of preimpregnation matrix resin is comprised.First when selecting fabric, its surperficial immersion agent must be compatible with resin system with winding continuous fiber system, like this in forming process fabric, winding continuous fiber and resin matrix by solidifying to form overall wound composite layer, as an integrated carrying load under the condition of exerting pressure.The working life of the phenomena impair gas cylinders such as layering can not be there is because of bi-material in Long-Time Service process simultaneously; Secondly, the mode of tiling is adopted to be overlying on certain layer (can be that bottom is to any one deck in the outermost surface) circumferential winding layer that calculates by analysis by fabric paving, it is evenly soaked into (if selecting preimpregnation matrix resin fabric can omit this soak process) with resin matrix, paving has been covered rear continuation hoop and has been wound around, and will spread smooth being wound between winding layer of fabric covered.Fabric paving covers position and the number of plies all adjusts by analytical calculation and product actual conditions.
To specifically provide the method for the composite material vessel of a kind of manufacture involved by the utility model below, first the steel high pressure seamless pipe choosing supporting length according to design capacity makes inner bag, inner bag is positioned on the running shaft of a runing rest again, then prepares high strength composite layer on inner bag surface.
Composite layer preparation process, selects the surperficial immersion agent compatible with resin matrix with winding continuous fiber, by fabric, winding continuous fiber and resin matrix, surperficial immersion agent by solidifying to form overall wound composite layer.
According to the parameter in table 1, fiber impregnated resin matrix is wound on toroidal container (inner bag) during winding.
Table 1
When being wound to certain layer, stop being wound around, affix paving is overlying in described composite material certain layer.This certain layer can be n-th layer (n is natural number).Those of ordinary skill in the art can by the layout of cylinder design physical dimension and key point, line, and the parameter such as the symmetry properties of structure, the position of setting certain layer.
Continuous fiber layer can circumferentially be wound around when being wrapped in inner bag surface, also can be wound around at an angle (spiral winding) with hoop.The affix increased in winding process spreads the direction covered, and can cover, or cover to spread with gas cylinder axis 30 ° of force directions perpendicular to hoop 90 ° of force direction pavings.
After winding completes, composite layer solidification employing horizontally rotates mode cascade temperature-curable mode, and solidify 4 ~ 5 hours under the step temperature of 95 ~ 155 DEG C, in its process, gas cylinder horizontally rotates, and ensures that in whole process, gas cylinder surface gel content is even.
With inner bag external diameter for 406mm, overall length is that to twine gas cylinder be control sample to the ring of 2140mm, this gas cylinder length of straigh line is that 1650mm experiences 25MPa working pressure repeatedly after charge and discharge 15000 times before not filling, the length of straigh line of cylinder liner becomes 1670mm, metal inner tube length change reaches 20mm, and the length change of composite layer straightway is very micro-.Because both length change are seriously inconsistent, therefore just there is hoop cracking phenomena clearly in composite layer, and the widest wall scroll hoop crack width can reach 7mm.
To add the inner bag external diameter of affix for 406mm, overall length is that to twine gas cylinder be control sample to the ring of 2140mm.After experience 25MPa working pressure repeatedly charge and discharge 15000 times, the length of straigh line of cylinder liner becomes 1670mm from 1650mm, and metal inner tube length change reaches 20mm.The variance ratio of cylinder liner still reaches 1.2%.But owing to compensating longitudinal force, the outer surface that the ring adding affix twines gas cylinder only has more uniform circumferential crack, the widest short of width 2mm of crackle.
Just preferred embodiment of the present utility model described in this specification, above embodiment is only in order to illustrate the technical solution of the utility model but not to restriction of the present utility model.All those skilled in the art comply with design of the present utility model by the available technological scheme of logical analysis, reasoning, or a limited experiment, all should within scope of the present utility model.
Claims (10)
1. a composite material vessel, is characterized in that, comprising:
One inner bag, described inner bag is for storing gas;
One continuous fiber, described continuous fiber is wound in described outer surface of liner by a predetermined angle and forms at least one deck composite layer;
One affix, described affix is positioned at the interlayer of described composite layer and/or internal surface and/or outer surface, ftractures for preventing described composite layer.
2. composite material vessel as claimed in claim 1, it is characterized in that, described affix is between two composite layers.
3. composite material vessel as claimed in claim 1, it is characterized in that, described affix is fabric or nonwoven.
4. composite material vessel as claimed in claim 1, is characterized in that, the shape of described affix is threadiness, sheet, cotton-shaped or block.
5. composite material vessel as claimed in claim 1, it is characterized in that, described affix is made up of metal or nonmetallic material.
6. composite material vessel as claimed in claim 1, it is characterized in that, described affix is made up of fiber-like material.
7. composite material vessel as claimed in claim 6, it is characterized in that, described fiber-like material is carbon fiber, glass fibre, aramid fibre, polyester fibre or steel fiber.
8. composite material vessel as claimed in claim 1, it is characterized in that, described continuous fiber is circumferentially wound around described outer surface of liner.
9. composite material vessel as claimed in claim 1, it is characterized in that, described continuous fiber is along outer surface of liner described in spiral wound.
10. composite material vessel as claimed in claim 1, is characterized in that, described affix spreads along the direction vertical with the hoop that described continuous fiber is wound around and applies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420496884.XU CN204164648U (en) | 2014-08-29 | 2014-08-29 | A kind of composite material vessel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420496884.XU CN204164648U (en) | 2014-08-29 | 2014-08-29 | A kind of composite material vessel |
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| Publication Number | Publication Date |
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| CN204164648U true CN204164648U (en) | 2015-02-18 |
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| CN201420496884.XU Active CN204164648U (en) | 2014-08-29 | 2014-08-29 | A kind of composite material vessel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371100A (en) * | 2014-08-29 | 2016-03-02 | 中材科技（苏州）有限公司 | Composite container and forming method of composite layers of composite container |
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- 2014-08-29 CN CN201420496884.XU patent/CN204164648U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371100A (en) * | 2014-08-29 | 2016-03-02 | 中材科技（苏州）有限公司 | Composite container and forming method of composite layers of composite container |
| WO2016029718A1 (en) * | 2014-08-29 | 2016-03-03 | 中材科技（苏州）有限公司 | Composite material container and method for forming composite material layer thereof |
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| GR01 | Patent grant | ||
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Effective date of registration: 20161216 Address after: 18 Chengdu Province Industrial Park, Xinjin Province, the new material industry functional area of new materials, road, the road, 611430 Patentee after: SINOMA TECHNOLOGY (CHENGDU) CO., LTD. Address before: 215021 Changyang street, Suzhou Industrial Park, Jiangsu, China, No. 68, No. Patentee before: Sinoma Science & Technology (Suzhou) Co., Ltd. |