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Fiber composite material high-pressure hydrogen storage cylinder and preparation method thereof

A fiber composite material and composite material technology, applied in the field of fiber composite high-pressure hydrogen storage gas cylinders and its preparation, can solve the problems of poor fatigue resistance and high and low temperature impact stability, and achieve good uniformity, resin content, and defect The effect of small porosity

Active Publication Date: 2021-05-04
BEIJING NEW ENERGY VEHICLE TECH INNOVATION CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this arrangement of fibers and fiber filaments becomes a weak point of stress concentration in a high pressure environment, and the fatigue resistance and high and low temperature impact stability are relatively poor.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Fiber composite material high-pressure hydrogen storage cylinder and preparation method thereof
  • Fiber composite material high-pressure hydrogen storage cylinder and preparation method thereof
  • Fiber composite material high-pressure hydrogen storage cylinder and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] (1) Provide a cylinder liner 100 of 6061 aluminum alloy, the size of which is as follows figure 2 shown. Specifically, the maximum cross-sectional outer diameter of the liner body 110 is 367 mm, and the thickness gradually increases from 5 mm in the middle to 15 mm; the outer diameter of the bottle mouth 120 is 59 mm, and the inner diameter is 21 mm; the length of the gas cylinder liner 100 is 796 mm.

[0060] (2) The T70024K carbon fiber yarn purchased from Toray Corporation of Japan was used to carry out two-dimensional multi-spindle weaving on the outer surface of the gas cylinder liner through the Overbraiding216 spindle process to form a composite material weaving layer including multi-layer fiber two-dimensional fabric. Among them, the parameters of two-dimensional multi-spindle weaving are shown in Table 1. The weaving angle of the main part of the liner is 61-67°, the weaving angle at the bottle mouth is 15-20°, and the weaving angle at the bottle shoulder is ...

Embodiment 2

[0069] (1) Provide a cylinder liner 100 of 6062 aluminum alloy, the size of which is as follows image 3 shown. Specifically, the maximum cross-sectional outer diameter of the liner body 110 is 167 mm, and the thickness gradually increases from 4 mm in the middle to 10 mm; the outer diameter of the bottle mouth 120 is 29 mm, and the inner diameter is 11 mm; the length of the gas cylinder liner 100 is 596 mm.

[0070] (2) The T70036K carbon fiber yarn purchased from Toray Corporation of Japan was used to carry out two-dimensional multi-spindle weaving on the outer surface of the gas cylinder liner through the Overbraiding72-spindle process to form a composite braided layer including multi-layer fiber two-dimensional fabrics. Among them, the parameters of the two-dimensional multi-spindle weaving are shown in Table 1. The weaving angle of the main part of the liner is 56-62°, the weaving angle at the bottle mouth is 15-20°, and the weaving angle at the bottle shoulder is 40-50°...

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Abstract

The invention provides a fiber composite material high-pressure hydrogen storage cylinder and a preparation method thereof. The preparation method comprises the steps that S100, a cylinder inner container is provided, and the cylinder inner container comprises an inner container body and a cylinder opening; S200, fiber yarns are adopted to conduct two-dimensional multi-spindle weaving on the outer surface of the cylinder inner container, so that a composite material weaving layer comprising multiple layers of fiber two-dimensional fabric is formed, the weaving angle of the fiber two-dimensional fabric at the position of the inner container body is 56-67 degrees, and the weaving angle of the fiber two-dimensional fabric at the position of the cylinder opening is 15-55 degrees; S300, in the composite material weaving layer, a sewing thread in the axis direction of the cylinder is additionally arranged between every 3-5 layers of adjacent fiber two-dimensional fabric for fixing, and a woven preformed body is obtained; and S400, resin is adopted to cure the woven preformed body through a vacuum bag vacuum resin infusion method, and the fiber composite material high-pressure hydrogen storage cylinder with the fiber composite material layer is obtained. The fiber composite material high-pressure hydrogen storage cylinder is light in weight, high in strength, resistant to fatigue, large in structural rigidity and good in high and low temperature impact resistance stability.

Description

technical field [0001] The invention relates to the technical field of hydrogen storage, in particular to a high-pressure hydrogen storage cylinder for fiber composite materials and a preparation method thereof. Background technique [0002] At present, hydrogen energy, as a new type of environmentally friendly energy, has attracted widespread attention from all walks of life and has been applied in the field of new energy vehicles. Hydrogen fuel vehicles have come out, but most of them use steel cylinders to store hydrogen fuel. Hydrogen cylinders for vehicles have problems such as heavy mass, small volume-to-weight ratio, easy corrosion, unsafe failure modes, and low working pressure, which restrict the application of hydrogen energy in the field of new energy vehicles. Applications. Under the background that the whole world is vigorously advocating energy saving and emission reduction and creating a low-carbon life, new energy vehicles urgently need a hydrogen storage cy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C70/68B29C70/78B29K105/10B29K63/00B29K105/00
CPCB29C70/681B29C70/78B29K2105/103B29L2031/7158B29K2105/0005Y02E60/32
Inventor 张振翀陈雨时梁晨邹广才原诚寅
Owner BEIJING NEW ENERGY VEHICLE TECH INNOVATION CENT CO LTD
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