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High pressure hydrogen storage bottle made of PBO fiber and carbon fiber mixed composite material and preparation method

A composite material and carbon fiber technology, applied in fixed capacity gas storage tanks, gas/liquid distribution and storage, pressure vessels, etc., can solve problems such as poor safety, low hydrogen storage efficiency, and steel cylinder weight, and achieve structural optimization and high safety The effect of reliability and long service life

Inactive Publication Date: 2008-11-05
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention is to solve the problem of poor weight and safety of the existing steel cylinders, and the hydrogen storage efficiency is very low due to the low hydrogen density. When pressurized to 15MPa, the mass hydrogen storage density is ≤3%

Method used

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  • High pressure hydrogen storage bottle made of PBO fiber and carbon fiber mixed composite material and preparation method

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specific Embodiment approach 1

[0014] Specific implementation mode one: combine figure 1 The present embodiment will be described. This embodiment consists of an aluminum alloy lining layer 1, an elastic adhesive transition layer 2, a carbon fiber composite material inner structure layer 3, a PBO fiber composite material outer structure layer 4, and a glass fiber composite material outer protective layer 5. The layer 1 and the carbon fiber composite inner structure layer 2 are bonded by an elastic adhesive transition layer 2, and the inner surface of the PBO fiber composite material outer structure layer 4 is wound on the outer surface of the carbon fiber composite material inner structure layer 3, on the PBO The outer surface of the outer structural layer 4 of fiber composite material is wound with an outer protective layer 5 of fiber composite material.

specific Embodiment approach 2

[0015] Specific embodiment two: the preparation method of this embodiment adopts the following steps:

[0016] Step 1. First, evenly paint a layer of elastic interface adhesive layer 2 on the outer surface of the aluminum alloy inner lining layer 1; the aluminum alloy inner lining layer 1 is made of 6061 aluminum alloy, which has outstanding hydrogen corrosion resistance , will not produce hydrogen embrittlement cracks. The thickness of the aluminum alloy lining layer 1 is 3mm-6mm, and the thickness of the elastic adhesive layer 2 is 0.5mm-0.7mm. The aluminum alloy lining layer 1 adopts a seamless columnar structure formed by integral spinning technology, which avoids fatigue failure caused by welding seams.

[0017] Step 2: On the outer surface of the adhesive layer 2, the carbon fiber composite inner structure layer 3 is produced by using a fiber wet winding process, and the first to second layer of spiral winding, the second layer of hoop winding, the first to the second l...

specific Embodiment approach 3

[0024] Embodiment 3: The difference between this embodiment and Embodiment 2 is that the coating thickness of the elastic adhesive layer 2 in step 1 is 0.6 mm; in step 2, one layer of spiral winding and two layers of hoop winding are performed in sequence. , one layer of spiral winding, one layer of hoop winding, one layer of helical winding and one layer of hoop winding, the winding angle of helical winding is 15.5°, the thickness of each winding layer is 0.6mm, and the inner structure layer of carbon fiber composite material 3 The thickness is 4.2mm; in step 3, one layer of helical winding, one layer of hoop winding, two layers of helical winding and one layer of hoop winding are used successively, the winding angle of helical winding is 16°, and the thickness of each winding layer is 0.4mm, and the winding thickness of the PBO fiber composite material outer structure layer 4 is 2mm; in step 4, the second layer of helical winding and the second layer of glass fiber composite ...

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Abstract

The invention relates to a hydrogen cylinder and its preparation method, in which, on the outside surface of the aluminum alloy lining is bonded an adhesive layer and the outside surface of the adhesive layer is bonded to the inside surface of the inner structure layer of carbon fibre composite; the inside surface of the outer structure layer of PBO fibre composite is wound on the outside surface of the inner structure layer and on the outside surface of the outer structure layer is wound an outer protective covering of coating an adhesive layer on the outside surface of the lining, overlying a spiral and toroidal wound inner structure layer, an outer structure layer and an outer protective covering; curing and then getting the present inventive hydrogen cylinder.

Description

technical field [0001] The invention relates to a method for preparing a composite material high-pressure hydrogen storage cylinder. Background technique [0002] With the widespread application of hydrogen energy, especially the large-scale commercial application of hydrogen internal combustion engine vehicles and hydrogen-powered fuel cell vehicles, the requirements for the comprehensive performance of hydrogen storage containers are getting higher and higher. At present, hydrogen storage containers are mainly steel cylinders, but this kind of container has weight and poor safety. Due to the low hydrogen density, its hydrogen storage efficiency is very low. Hydrogen storage density ≤ 3%. For hydrogen storage containers for mobile use, increasing the hydrogen pressure to increase the hydrogen carrying capacity may cause hydrogen molecules to escape from the container wall or cause hydrogen embrittlement. For high-pressure hydrogen storage cylinders used in high-tech field...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17C1/06F17C1/16
CPCY02E60/321Y02E60/32
Inventor 张春华黄玉东曹海琳宋元军
Owner HARBIN INST OF TECH
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