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50-litres hydrogen composite cylinder having carbon fiber wholly-wound, reinforced aluminum lining

A technology of winding reinforcement and carbon fiber, which is applied in the field of hydrogen supply equipment, can solve the problems of low safety performance, low weight-to-volume ratio, difficult 35MPa high-pressure hydrogen storage composite gas cylinder composite structure layering sequence, etc., and achieve the best safety performance effect

Inactive Publication Date: 2005-01-12
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

This existing technology is also difficult to design the layering sequence of the composite material structure of the 35MPa high-pressure hydrogen storage composite gas cylinder and the "self-tightening" technical treatment method adopted to improve its fatigue life
[0005] Therefore, using the virtual simulation technology of finite element program software to give the optimal layering sequence of carbon fiber structural layers and reasonable "self-tightening" pressure in the design, to ensure that the carbon fiber fully wound reinforced aluminum lined composite gas cylinder is under high pressure. Good fatigue life, safety performance and low weight-to-volume ratio at working pressure are still a formidable challenge

Method used

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  • 50-litres hydrogen composite cylinder having carbon fiber wholly-wound, reinforced aluminum lining
  • 50-litres hydrogen composite cylinder having carbon fiber wholly-wound, reinforced aluminum lining
  • 50-litres hydrogen composite cylinder having carbon fiber wholly-wound, reinforced aluminum lining

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specific Embodiment approach

[0021] 1) figure 1 In , the structural dimensions of the aluminum lining shown are respectively taken as:

[0022] The length of cylinder 1 is L 1 =531mm, inner diameter D=327mm, height L of sag at end 2 of the elliptical surface 2 =90mm, including the length L of the bottle mouth 3 with M25 internal thread 3 =50mm, wall thickness t=3.4mm, guarantee that the volume of composite gas cylinder of the present invention is 50 liters.

[0023] 2) Apply a thin layer of polyurethane varnish on the outer surface of the aluminum lining as an anti-electrocorrosion coating 4.

[0024] 3) After the T700-12KC carbon fiber bundle is immersed in epoxy resin, according to a certain design tension T, it is wound on the aluminum lining according to the optimally designed layering sequence; the layering sequence of the carbon fiber winding layer 5 of the aluminum lining cylinder part is:

[0025] [±α 1 / H 3 / ±α 2 / H 2 / ±α 3 / H 2 ],

[0026] The layering sequence of the longitudinal hel...

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Abstract

The strengthend composite hydrogen storing bottle has inner aluminum lining comprising one barrel and two symmetrical elliptic cambers with inner thread mouth as core mold, carbon fiber layers wound onto the surface of the inner lining in optimally designed winding order and outer wound shock resisting protective glass fiber layers. During the making process 'self fastening' treatment is adopted, the longitudinal fiber layers and circular fiber layers are wound alternately. The present invention make it possible for the hydrogen fuel electric vehicle to reach the driving mileage of similar to burning vehicle and has practical use value, lasting airtight performance and excellent safety.

Description

technical field [0001] The invention relates to a 50-liter carbon fiber full-winding reinforced aluminum-lined hydrogen storage composite gas cylinder, which is an essential device for supplying hydrogen in a hydrogen fuel cell system in a hydrogen fuel electric car, and is used for storing compressed hydrogen under a high pressure state of 35Mpa. Background technique [0002] The proton exchange membrane fuel cell directly converts the chemical energy of hydrogen into electrical energy, and the electrolyte is a proton exchange membrane. The working principle of the proton exchange membrane fuel cell is very simple: the hydrogen used as fuel flows from the hydrogen storage device to an electrode terminal of the battery pack, and under the action of the anode catalyst, the hydrogen molecules are ionized into positively charged hydrogen ions (protons) and Negatively charged electrons; electrons form a current in the external circuit, and can output electrical energy to the loa...

Claims

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Application Information

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IPC IPC(8): F17C1/06F17C1/14
CPCY02E60/321Y02E60/32
Inventor 王熙张伟吴浩明
Owner SHANGHAI JIAO TONG UNIV
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