Fixed type multi-layered vacuum heat-insulating high-pressure liquid hydrogen storage tank
A vacuum adiabatic and high-pressure liquid technology, applied in fixed-capacity gas storage tanks, gas/liquid distribution and storage, hydrogen technology, etc., can solve the problems of increasing hydrogen storage pressure, hydrogen energy waste, limiting applications, etc., to reduce evaporation , avoid waste and prevent overpressure
Inactive Publication Date: 2017-10-03
ZHEJIANG UNIV
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Problems solved by technology
According to investigations, the daily evaporation loss of atmospheric pressure liquid hydrogen storage is about 1%, which causes a lot of waste of hydrogen energy
The hydrogen storage density of normal temperature and high pressure hydrogen storage is limited by the pressure. The current hydrogen storage pressure has reached 70MPa, but its hydrogen storage density is only 38kg/m 3 or so, compared to liquid hydrogen, the hydrogen storage density is very low
To increase the hydrogen storage density, it is necessary to increase
Method used
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[0021] Such as figure 1 As shown, the fixed multi-layer vacuum insulated high-pressure liquid hydrogen storage tank consists of two parts: the inner tank 1 and the outer tank 5. The tank body containing liquid hydrogen is used as the inner tank 1, and the outer shell is wrapped with a layer of fiber-reinforced epoxy resin-based composite material. 2, and is fixed in the cavity of the outer tank 5 by at least two inner tank supports 7; the cavity between the inner tank 1 and the outer tank 5 is a vacuum insulation interlayer 3, and multiple layers are laid in the vacuum insulation interlayer 3 for The vacuum radiation protection insulation layer 4 covering the entire inner tank 1; the outer tank 5 is provided with a vacuum pumping device 14 and a vacuum gauge 15 communicating with the vacuum insulation interlayer 3;
[0022] The inner tank support member 7 includes an annular rib 7-1, and a metal backing plate 7-2 and a non-metal backing plate 7-3 are arranged around the radial...
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The invention relates to the field of development of hydrogen energy source storage equipment, and aims to provide a fixed type multi-layered vacuum heat-insulating high-pressure liquid hydrogen storage tank. The liquid hydrogen storage tank comprises an inner tank and an outer tank; a fiber enhanced epoxy resin based composite material layer covers the outer shell of the inner tank and is fixed in a chamber body of the outer tank by a supporting part; the inner tank and the outer tank are of vacuum heat-insulating interlayers; multiple vacuum radiation-prevention heat insulating layers covering the whole inner tank are paved in the vacuum heat-insulating interlayers; a vacuumizing device and a vacuum meter which communicate with the vacuum heat-insulating interlayers are arranged on the outer tank. By comprehensively considering two factors of the temperature and the pressure in a hydrogen phase chart, the used fiber-wound aluminum inner container can bear the pressure, and the hydrogen storage density is improved more, the waste is avoided and an overpressure condition is also prevented, and the safety of the structure is ensured. The fixed type multi-layered vacuum heat-insulating high-pressure liquid hydrogen storage tank is suitable for liquid hydrogen filling stations and gas-state hydrogen filling stations.
Description
technical field [0001] The invention belongs to the field of hydrogen energy storage equipment development, in particular to a fixed multi-layer vacuum heat-insulated high-pressure liquid hydrogen storage tank. Background technique [0002] With the emergence of energy crisis and environmental problems, replacing existing fossil fuel vehicles with clean energy vehicles is one of the important ways to solve energy and environmental problems. As a green energy and energy carrier with abundant reserves, wide sources and high energy density, hydrogen energy has attracted widespread attention in recent years. Hydrogen fuel cell vehicles powered by hydrogen energy have high energy conversion rate and fuel economy. Good, zero emissions and other advantages, has become the most popular research field. The promotion and use of hydrogen fuel cell vehicles is premised on the improvement of supporting facilities. Hydrogen refueling stations are the most important basic supporting facil...
Claims
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Patent Timeline
Login to view more IPC IPC(8): F17C1/12F17C1/14F17C1/06F17C13/00
CPCF17C1/06F17C1/12F17C1/14F17C13/00F17C13/002F17C2201/0109F17C2201/035F17C2203/0308F17C2203/0391F17C2203/0609F17C2203/0629F17C2203/0639F17C2203/0646F17C2203/066F17C2221/012F17C2223/013F17C2223/035Y02E60/32Y02P90/45
Inventor 郑津洋马凯吴英哲徐平丁会明陆群杰徐淮建江城伟
Owner ZHEJIANG UNIV
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