CN210088449U - High-pressure composite lightweight hydrogen storage bottle - Google Patents
High-pressure composite lightweight hydrogen storage bottle Download PDFInfo
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- CN210088449U CN210088449U CN201920773836.3U CN201920773836U CN210088449U CN 210088449 U CN210088449 U CN 210088449U CN 201920773836 U CN201920773836 U CN 201920773836U CN 210088449 U CN210088449 U CN 210088449U
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- 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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model relates to a compound lightweight hydrogen storage bottle of high pressure, including the bottle inner bag, respectively with the bottle inner bag about bottle shoulder integrated into one piece's indent formula bottleneck, with the nipple and the cladding of bottleneck outside outer joint, the bottle inner bag be the HDPE material, nipple and metal end cap or valve peg graft. Compared with the prior art, the utility model has the advantages of light weight, high hydrogen storage density, good sealing performance, good bottle mouth sealing performance, stable winding and the like.
Description
Technical Field
The utility model belongs to the technical field of hydrogen fuel cell car hydrogen storage technology and specifically relates to a compound lightweight hydrogen storage bottle of high pressure is related to.
Background
In 2019, facilities such as charging and hydrogenation are promoted to be constructed and written into a government work report for the first time, and hydrogen is combusted in oxygen to generate water without generating any other byproducts. The hydrogen gas is widely present in the air, so that the hydrogen gas becomes the most convenient energy source for taking and cleaning to one hundred percent of people and livestock and is harmless, the hydrogen fuel cell vehicle is filled with hydrogen for only 3-4 minutes at a time, the endurance mileage can reach 650 kilometers, the driving mileage is long, the hydrogenation speed is high, the driving controllability and the fuel vehicle are completely consistent and environment-friendly, and the vehicle-mounted hydrogen cylinder is the key equipment for storing energy of the hydrogen fuel cell vehicle, so that the vehicle-mounted hydrogen cylinder is used as the only container for storing hydrogen energy at present, and the light weight technology of the high-pressure hydrogen storage equipment is the research direction of the prior art.
As shown in figure 1, the traditional III type hydrogen storage bottle takes aluminum alloy as an inner container of the gas bottle, adopts an aluminum alloy pipe material to close up by spinning, processes a bottle mouth, the bottle mouth and the bottle shoulder are in arc transition, the density is generally between 2.5 and 2.88g/cm3, the IV-type hydrogen storage bottle is made of HDPE (high density polyethylene) material, the density is only 0.94-0.95g/cm3, but the difficulty of the current manufacturing is that the pipelines of the hydrogen fuel battery car are all metal pipelines, if HDPE is adopted as the material of the inner container of the hydrogen storage bottle, the bottle mouth thread is made of different materials with the aluminum alloy pipeline, has anisotropy and different hardness, and the forced sealing can cause material deformation and sealing failure, since the lower explosion limit of hydrogen is only 4.1%, there is a great risk once it leaks.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a high-pressure composite light hydrogen storage bottle in order to overcome the defects of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
the utility model provides a compound lightweight hydrogen storage bottle of high pressure, includes bottle inner bag, respectively with about the bottle inner bag bottle shoulder integrated into one piece's indent formula bottleneck, with the nipple of bottleneck grafting and the cladding at the outside outer joint of bottleneck, the bottle inner bag be the HDPE material, nipple and metal end cap or valve peg graft.
The inner joint is of an inverted boss type and is composed of an integrally-formed inserting part and a connecting part, the inserting part is inserted into the mouth of the bottle nozzle, a check ring and a sealing groove opening are arranged on the outer surface of the inserting part, and an O-shaped sealing ring is installed in the sealing groove opening.
The metal plug or the valve is inserted into the connecting part to be connected in a sealing mode, and the inner surface of the outer joint is respectively in screwed sealing with the outer surface of the nozzle and the outer surface of the connecting part of the inner joint through threads.
The outer surfaces of the inner container and the outer joint of the bottle body are provided with carbon fiber winding layers for bearing winding tension, and glass fiber protective layers or anti-impact protective covers are wound on the outer sides of the carbon fiber winding layers.
The minimum thickness of the inner container of the bottle body is 5.5 mm.
The circumferential layer thickness h of the carbon fiber winding layerθAnd thickness h of the spiral layerαThe design formula of (1) is as follows:
wherein R is the radius of the inner container, PbFor minimum design burst pressure, α is the wrap angle, σfDesign strength for carbon fiber, VfIs the fiber volume content of the carbon fiber winding layer.
The shear stress safety factor of the threaded connection part is not less than 4 times.
The metal plug and the valve are both made of 6061 aluminum alloy.
The inner joint and the outer joint are both metal joints.
Compared with the prior art, the utility model has the advantages of it is following:
firstly, the weight is light, the hydrogen storage density is high: the utility model discloses a bottle inner bag adopts the HDPE plastics material, compares in the alloy inner bag of III type hydrogen storage bottles, quality greatly reduced, and the total weight only is 37.9kg, and quality hydrogen storage density can reach 5.4%, can effectual reduction load improve hydrogen fuel automobile's the mileage of traveling.
Secondly, the sealing performance of the bottle mouth is good: because the utility model discloses a bottle neck is HDPE plastics material, and the metal end cap or the valve of being connected rather than be 6061 aluminum alloy material, the utility model discloses an indent formula cross-section is bow-shaped bottle neck to inner joint and outer joint through threaded connection have been designed, and with the bottle neck mouth part insert the space that inner joint and outer joint formed, the effectual problem of having avoided leading to sealed failure or deformation because of the material difference.
Thirdly, winding stably: because the utility model discloses a plastic liner does not bear load, and its body structure also can't bear big winding tension, consequently one deck fibrous layer is used for bearing winding tension on the winding of inner liner outer surface to cooperate concave cross-section to be arcuate bottleneck, give the sufficient bending resistance of plastic liner head in the winding, guarantee that the winding is stable
Fourthly, the sealing performance is good: the utility model discloses press from both sides plastics inner bag bottle neck mouth between metal nipple and metal outer joint, adopt the form of screw thread to screw sealedly to through setting up the combination seal structure that twice O shape circle adds the retaining ring between bottle neck mouth internal surface and nipple grafting portion surface, the effectual leakproofness of having guaranteed, still add the glass fiber protective layer or set up the protecting cover of protecting against shock in the sealed department of bottle neck simultaneously, increased seal strength under the safe condition of guaranteeing to strike.
Fifth, during stress analysis, a self-tightening pressure is applied to the type III bottle, and the hydrogen storage bottle of the present invention does not require this step, and a load is directly applied from zero.
Drawings
FIG. 1 is a schematic view of a conventional type III hydrogen storage cylinder.
Fig. 2 is a main sectional view of the structure of the bottle body of the hydrogen storage bottle of the present invention.
Fig. 3 is a partially enlarged view of a portion a in fig. 2.
Fig. 4 is a sectional view of the mouthpiece-connecting structure.
FIG. 5 is a plan view of the sealing structure of the mouth of the liner
Fig. 6 is a main sectional view of the hydrogen storage bottle of the present invention.
Figure 7a is a front view of the structure of the nipple.
Figure 7b is a structural plan view of the nipple.
Fig. 8a is a front view of the external joint.
Fig. 8b is a top view of the external joint.
The bottle comprises a bottle body liner 1, a bottle mouth 2, a bottle mouth 3, an inner joint 4, an outer joint 21, a mouth 31, an insertion part 32, a connecting part 311, a retainer ring 312 and a sealing notch.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
At present, only GB/T35544 & 2017 & lt & gt compressed hydrogen aluminum liner carbon fiber fully-wound gas cylinder for vehicles which is suitable for the III type hydrogen storage cylinder exists in China, and the national standard of the IV type hydrogen storage cylinder does not exist. The research on IV type bottles (high-pressure composite light hydrogen storage bottles) is in the initial stage. The utility model discloses on the basis based on III type hydrogen storage bottle, according to the characteristics of IV type hydrogen storage bottle, design calculation is carried out to IV type hydrogen storage bottle.
The design of the IV-type hydrogen storage bottle of the utility model is based on the following conditions:
(1) the plastic liner only has sealing function and does not bear any load.
(2) The carbon fiber wound layers bear the entire load.
The specific design content is as follows:
1. designing calculation parameters
Filling a medium: hydrogen gas;
nominal working pressure: 35 MPa;
note: taking 35MPa as an example, 70MPa is calculated similarly.
The temperature of the use environment: -40 ℃ to 85 ℃;
the diameter of the inner container:
nominal outer diameter:
nominal volume: 52L
The hydrostatic test pressure is 52.5 MPa;
the minimum design bursting pressure is 78.75 MPa;
the design service life is 15 years.
2. Material selection
2.1 selection of materials for the liner of the bottle
Through a large number of foreign application practices, the currently accepted liner material suitable for storing hydrogen is HDPE, namely high density polyethylene.
2.2 carbon fiber winding layer Material selection
According to the current foreign situation, the carbon fiber of T700 grade is selected. The specific carbon fiber selection is as follows:
TABLE 1 carbon fiber parameters
| Tensile strength | Nominal linear density | Nominal modulus |
| 4900MPa | 1600TEX | 230GPa |
2.3 glass fiber selection
According to the actual use condition of the current hydrogen cylinders in China, a glass fiber protective layer is adopted as a protective layer. Because the glass fiber is only used as a protective layer, the performance index of the glass fiber is not specifically required, and generally only E glass fiber or higher-grade glass fiber is required to be adopted.
2.4 mouthpiece Material selection
The current III type hydrogen storage bottle adopts 6061 aluminum alloy, and because the domestic 6061 aluminum alloy has good hydrogen compatibility, the hydrogen has small influence on the slow strain rate tensile property and the fatigue crack expansibility. Meanwhile, the heat treatment process has no obvious influence on the hydrogen brittleness sensitivity of the 6061 aluminum alloy, so the 6061 aluminum alloy is a verified material with good use experience and is very suitable to be used as a bottle nozzle material of an IV-type high-pressure hydrogen cylinder. In this example, 6061 aluminum alloy was selected as the material for the mouth metal nozzle.
2.5 resin matrix selection
The resin matrix of the III type hydrogen storage bottle generally adopts epoxy or modified epoxy, and at present, E51 epoxy resin is basically adopted, and the epoxy resin is bisphenol A type epoxy resin. The curing agent used in type III hydrogen storage bottles is typically an anhydride-based curing agent, such as methyl tetrahydrophthalic anhydride. Appropriate accelerators, such as BDMA, are then added, which constitute a resin formulation system suitable for the winding process. Because epoxy resins are inherently brittle, a suitable toughening agent is generally added to improve the elongation at break of the resin system. The III type hydrogen storage bottle curing agent can also be selected from amine curing agents, and the curing agent has higher fracture elongation and can improve the self-tightening process cracks on the surface of the gas cylinder. However, the resin system adopting the amine curing agent generally has a low glass transition temperature of only 80-90 ℃,
the curing temperature of the III type hydrogen storage bottle resin is generally medium-temperature curing, and the post-curing temperature is generally controlled between 120 ℃ and 140 ℃.
The utility model discloses a resin system requirement then is different totally with III type hydrogen storage bottle, because the utility model discloses a HDPE plastic inner bag, HDPE softening point are 125 ~ l35 ℃, and HDPE stabilizes service temperature about 80 ℃, so can't adopt III type hydrogen storage bottle's solidification temperature. Therefore, a new resin system is needed, and currently, epoxy resin and modified amine curing agents are generally adopted, and then winding and curing are carried out by adopting a low-temperature curing method. The curing temperature is generally about 80 ℃.
In the present utility model, the following resin system is adopted for winding and curing:
epoxy resin: 128 epoxy;
curing agent: d230;
and (3) a curing process: 80 ℃ for 6-8 hours.
3. Structural design
3.1 Structure design of inner container of bottle body
Because the plastic inner container does not bear load, the body structure of the plastic inner container cannot bear large winding tension. And the inner container needs to be wound with a thick carbon fiber layer on the outer surface. Therefore, the design of the inner container needs to comprehensively consider the convenience of the winding process, and the inner container cannot deform and be unstable during winding, so that the bottle mouth structure is flexible and fails.
The utility model designs a structural form of the plastic inner container under the condition of fully considering, as shown in figures 2 and 3.
The inner bag adopts two bottle mouths, and the mouth adopts the indent design, according to HDPE material characteristic, adopts the mode of 3D printing or blow molding to process, and the outer nested groove in its bottle shoulder position processing. Then through processing the inner joint and the outer joint, the cylinder mouth part of the gas cylinder liner is wrapped in the inner joint in a sandwich mode, so that after the metal joint is installed, great bending resistance can be given to the plastic liner seal head during winding, and stability during winding is guaranteed.
3.2 bottle mouth structural design
In the embodiment, the bottle mouth structure of the hydrogen storage bottle is innovatively designed, the specific structure is shown in fig. 4, and the plastic inner container mouth is clamped between the metal inner joint (shown in fig. 7a and 7 b) and the metal outer joint (shown in fig. 8a and 8 b) in a combined mode of fig. 4. Then the valve and the plug are screwed on the metal inner connector.
3.3 Plastic inner container sealing Structure design
Through the bottleneck structure that fig. 4 shows, the utility model discloses can guarantee to stabilize the continuous form of plastics and metal as far as, not influenced by follow-up factor, follow-up in production and use, possible influence is for example change valve, water pressure frock influence and so on factor.
As shown in fig. 5, the plastic inner container and the metal nozzle are sealed by a combination of an O-ring and a retainer ring, and meanwhile, in order to increase the reliability of the sealing, a group of sealing structures are additionally arranged to ensure the final stability and reliability of the product.
3.4 composite reinforced layer structural design
The utility model discloses it is the same with III type hydrogen storage bottle at carbon fiber winding layer structural design's theoretical basis, but an important difference is the utility model discloses hydrogen storage bottle's inner bag does not bear any load for the plastics material inner bag, and III type hydrogen storage bottle inner bag bears load, generally in the design calculation in-process, when checking III type hydrogen storage bottle winding layers, need subtract the burst pressure of aluminum alloy inner bag.
From this, can derive, under the same burst pressure, the utility model discloses a carbon fiber winding layer thickness of IV type hydrogen storage bottle will be greater than III type hydrogen storage bottle.
However, since the fatigue failures of the type III hydrogen storage bottle are all failures of the aluminum alloy liner, the fatigue times of the type III hydrogen storage bottle can be ensured only by winding the aluminum alloy liner under high explosion pressure in order to reduce the stress of the aluminum alloy liner. For example, a 35MPa type iii hydrogen storage cylinder, although the standard specified burst factor is 2.25 times, in practice, the true burst pressure of the cylinder is generally greater than a 3-fold safety factor.
And the fatigue performance of the carbon fiber composite material is only needed to be considered for the IV-type hydrogen storage bottle, and the fatigue performance of the carbon fiber composite material is more than 10 times of that of the metal. So the design of the IV-type hydrogen storage bottle can give full play to the performance of the carbon fiber composite material, reduce the explosion coefficient and not reduce the fatigue performance.
Accordingly, the type IV hydrogen storage cylinder can be designed according to the minimum burst pressure specified by the standard. In the present example, the specification of the burst pressure is designed in the reference GB/T35544-2017 standard, and the safety factor is 2.25 times, namely 78.75MPa
3.5 protective layer Structure design
The utility model discloses owing to adopt the plastics inner bag, its itself does not have rigidity, so shock-resistant, especially the gas cylinder head, stand striking or strike, arouse the head seriously impaired easily. The III type hydrogen storage bottle has a good protection effect on external impact because the aluminum inner container has certain strength.
The utility model discloses set up protecting against shock visor in head department, be used for preventing that the gas cylinder head from receiving stress impact.
In this design, can have 2 selections to the protective layer, firstly twine the glass fiber protective layer, secondly set up the protecting cover that guards against shock, can select one kind, also can both kinds select. However, in the calculation process, the influence of the protective layer on the strength of the gas cylinder is not considered.
4. Calculation of inner container design wall thickness
The utility model discloses a IV type hydrogen storage bottle inner bag does not bear load, but the inner bag still need guarantee the sealed of hydrogen, so need not consider intensity check when designing inner bag thickness, selects the minimum thickness of plastics inner bag to be 5.5 mm.
4.1 winding layer minimum design wall thickness calculation
And (4) designing the IV-type hydrogen storage bottle, and designing and calculating the thickness of the carbon fiber winding layer according to a grid theory.
The design formula of the carbon fiber circumferential layer is as follows:
the carbon fiber spiral layer design formula is as follows:
in the above formula, each symbol is defined as follows:
hθ: the thickness of the carbon fiber circumferential winding layer is mm;
hα: the thickness of the carbon fiber spiral winding layer is mm;
r: the radius of the inner container;
Pb: a minimum design burst pressure;
σf: designing strength of the carbon fiber;
Vf: the volume content of the fibers of the carbon fiber winding layer;
α winding angle.
In actual calculation, the annular utilization rate of the carbon fibers is the highest, and the spiral utilization rate is lower than the annular utilization rate. When designing type III hydrogen storage cylinders and gas cylinders, the burst pressure of the aluminum liner itself is generally subtracted. However, this is for convenience of calculation, and the practical situation is that the thickness of the aluminum inner container end socket is much higher than the thickness of the inner container cylinder. A considerable part of the load of the actual type III hydrogen storage bottle closure is provided by the aluminum liner per se and is far higher than the load born by the cylinder body part. When the IV-type hydrogen storage bottle is designed, the carbon fiber winding layer bears the partial load of the end socket completely, and the carbon fiber winding layer can be analyzed and obtained, and the fiber utilization rate of the carbon fiber spiral layer is lower than that of the III-type hydrogen storage bottle.
4.2 checking safety coefficient of shearing stress of bottle mouth screw
The bottle mouth of the IV-type hydrogen storage bottle of the utility model is the same as the III-type hydrogen storage bottle, and the shearing stress of the screw thread needs to be checked. At present, according to the GB/T35544 and 2017 standard, the thread shear stress safety factor is not less than 4 times.
A thread shear stress checking method GB/T28053 composite gas cylinder for a respirator is provided.
For the IV-type hydrogen storage bottle, the thread checking not only needs to check the part connected with the valve, but also needs to check the thread shearing stress of the connecting part simultaneously if the bottle mouth structure design also has the part connected with the metal piece and is not less than 4 times.
4.3 nominal volume calculation of Hydrogen storage bottle
The calculation can be carried out according to the cylinder part and the end enclosure part respectively, the cylinder part is calculated according to a cylindrical formula, and the end enclosure part is calculated according to an ellipsoid formula.
4.4 calculation of the internal bladder gross weight of the Hydrogen storage bottle
And the nominal weight of the liner of the IV-type hydrogen storage bottle is calculated according to the cylinder part and the end enclosure part respectively. The cylinder part is multiplied by the density of the plastic according to the nominal volume, the nominal volume is calculated according to the volume of the outer cylinder of the plastic liner-the volume of the inner circle of the plastic liner, the volume of the end enclosure part is calculated by subtracting the volume of the inner ellipsoid from the volume of the outer ellipsoid, and finally, the nominal weight of the whole IV-type hydrogen storage bottle is obtained through summarization.
Example 1
The structure of the inner container is shown in fig. 6, and the whole inner container is formed by combining a metal outer joint, a metal inner joint, a plastic inner container and a sealing piece.
Calculating the weight of the inner container: because the structure of the inner container is complex, the weight of the inner container is respectively divided into three parts, namely a metal outer joint, a metal inner joint and a plastic inner container. And (3) generating the volume of the liner by adopting CAD software and a computer for automatically generating a 3D graph, and then converting the overall mass of the liner according to the density.
TABLE 2 Overall quality of liner
The total mass is as follows: 8.1 kg;
tail blocking: 0.294 kg;
a valve: about 1.7 kg.
And (3) designing the thickness of a winding layer:
carbon fiber material: dongli T700 same series carbon fiber
The technical performance indexes are as follows:
the minimum tensile strength guarantee value (MPa) in the circumferential direction of the carbon fiber is more than or equal to 3800.
The winding layer structure design is shown in table 3.
Table 3 winding layer structure design table
Calculating the weight of the winding layer:
the winding layer common weight calculation is shown in table 4.
Table 4 winding layer public weighing quantity calculation table
Calculating the total weight of the IV type hydrogen storage bottle:
the total mass of the IV-type hydrogen storage bottle of the utility model comprises the following parts: the inner container, the winding layer, the tail plug, the end socket protective layer and the cylinder valve are shown in table 5.
TABLE 5 Total Hydrogen storage bottle Mass
| Inner container | Winding layer | Tail plug | End socket protection pad | Cylinder valve | |
| Weight kg | 8.1 | 25.9 | 0.294 | 1 | 1.7 |
The mass hydrogen storage density of the type IV hydrogen storage cylinder was calculated as shown in table 6.
TABLE 6 Hydrogen storage bottle Mass Hydrogen storage Density
The above mass hydrogen storage density is calculated data in the case where the IV-type hydrogen storage bottle is wound only around the circumferential glass fiber protective layer. According to domestic use conditions, a glass fiber protective layer is generally wound outside the carbon fiber layer. If the glass fiber protective layer of the spiral layer is calculated, the weight of the IV type hydrogen storage bottle is increased by 0.87kg, the total weight is 37.9kg, and the mass hydrogen storage density can reach 5.4 percent.
The utility model discloses a vehicle-mounted IV-type hydrogen storage bottle process design includes two core key creation points of inner bag structural design and winding design.
When the plastic inner container is designed, the most core part needs to consider the design of a sealing structure between the plastic inner container and the metal connecting nozzle. The whole design considers the complex use condition of the vehicle-mounted hydrogen storage bottle (IV type), no gas leakage can occur between metal and plastic at the temperature of minus 40 ℃ to 85 ℃, and the metal and the plastic are two different materials and have different thermal deformation shrinkage rates. At the same time, the plastic softens when the temperature rises.
When the plastic inner container is designed, how the carbon fibers can be wound on the plastic inner container needs to be considered, certain rigidity and certain deformation resistance need to be considered, certain tension is needed for the carbon fiber winding, the strength of the carbon fibers can be well exerted, the plastic inner container does not bear load, compressed air can be filled into the plastic inner container during the winding process, and then the plastic inner container is wound. However, the metal nozzle has a large size, and the winding stability is still seriously influenced by the structural design.
When the IV-type hydrogen storage bottle is wound, certain pressure needs to be charged to ensure the winding manufacturability, so that the fiber can fully exert the strength.
Claims (7)
1. The utility model provides a compound lightweight hydrogen storage bottle of high pressure which characterized in that, including bottle inner bag (1), respectively with about bottle inner bag (1) bottle shoulder integrated into one piece's indent formula bottleneck (2), with inner joint (3) and the cladding of bottleneck (2) outside outer joint (4) of bottleneck (2) grafting, bottle inner bag (1) be the HDPE material, inner joint (3) and metal end cap or valve peg graft.
2. The high-pressure composite light-weight hydrogen storage bottle as claimed in claim 1, wherein the nipple (3) is of an inverted boss shape and comprises an integrally formed insertion part (31) and a connecting part (32), the insertion part (31) is inserted into the mouth (21) of the bottle mouth (2), a retainer ring (311) and a sealing notch (312) are arranged on the outer surface of the insertion part (31), and an O-shaped sealing ring is arranged in the sealing notch (312).
3. The high-pressure composite light-weight hydrogen storage bottle as claimed in claim 2, wherein the metal plug or the valve is inserted into the connecting portion (32) for sealing connection, and the inner surface of the outer joint (4) is screwed and sealed with the outer surface of the nozzle (21) and the outer surface of the connecting portion (32) of the inner joint (3).
4. The high-pressure composite light-weight hydrogen storage bottle as claimed in claim 1, wherein the outer surfaces of the bottle body liner (1) and the outer joint (4) are provided with carbon fiber winding layers for bearing winding tension, and glass fiber protective layers are wound on the outer sides of the carbon fiber winding layers or impact protection covers are arranged.
5. The high-pressure composite lightweight hydrogen storage bottle as claimed in claim 1, wherein the minimum thickness of the bottle body liner (1) is 5.5 mm.
6. The high-pressure composite lightweight hydrogen storage bottle as claimed in claim 1, wherein the metal plug and the valve are both made of 6061 aluminum alloy.
7. The high-pressure composite light-weight hydrogen storage bottle as claimed in claim 1, wherein the inner joint (3) and the outer joint (4) are both metal joints.
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| CN201920773836.3U CN210088449U (en) | 2019-05-27 | 2019-05-27 | High-pressure composite lightweight hydrogen storage bottle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336400A (en) * | 2020-03-09 | 2020-06-26 | 山东大学 | Liner of high-pressure hydrogen storage bottle and preparation method |
| CN111650897A (en) * | 2020-05-06 | 2020-09-11 | 江苏国富氢能技术装备有限公司 | Intelligent production process of aluminum liner in intelligent production workshop of high-pressure hydrogen cylinder |
| CN111963884A (en) * | 2020-07-14 | 2020-11-20 | 合肥通用机械研究院有限公司 | Ultrahigh pressure hydrogen storage container |
-
2019
- 2019-05-27 CN CN201920773836.3U patent/CN210088449U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111336400A (en) * | 2020-03-09 | 2020-06-26 | 山东大学 | Liner of high-pressure hydrogen storage bottle and preparation method |
| CN111650897A (en) * | 2020-05-06 | 2020-09-11 | 江苏国富氢能技术装备有限公司 | Intelligent production process of aluminum liner in intelligent production workshop of high-pressure hydrogen cylinder |
| CN111650897B (en) * | 2020-05-06 | 2022-03-15 | 江苏国富氢能技术装备股份有限公司 | Intelligent production process of aluminum liner in intelligent production workshop of high-pressure hydrogen cylinder |
| CN111963884A (en) * | 2020-07-14 | 2020-11-20 | 合肥通用机械研究院有限公司 | Ultrahigh pressure hydrogen storage container |
| CN111963884B (en) * | 2020-07-14 | 2022-04-05 | 合肥通用机械研究院有限公司 | Ultrahigh pressure hydrogen storage container |
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