Ultra-high pressure gas cylinder liner with end caps and manufacturing method thereof

A manufacturing method and technology of compressed gas cylinders, applied in the field of high-pressure containers, can solve the problems of small volume, heavy quality, and poor reliability of ultra-high pressure gas cylinders, and achieve the effects of strict surface quality control, low pollution, and light weight

Active Publication Date: 2020-07-10
AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To at least solve the problems of small volume, overweight and poor reliability of the current ultra-high pressure gas cylinders

Method used

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  • Ultra-high pressure gas cylinder liner with end caps and manufacturing method thereof
  • Ultra-high pressure gas cylinder liner with end caps and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0113] Prepare a super-high-pressure gas cylinder liner with a diameter of 500mm, a length of 3.5m, and a wall thickness of 5mm. The rated pressure of the super-high-pressure gas cylinder is required to be 70Mpa, specifically including the following steps:

[0114] S1, the preparation of aluminum alloy liner spinning tube, this step specifically includes the following steps:

[0115] S1a, the spinning forming of the straight section 3 of the aluminum alloy liner spinning tube, the seamless pipe with a length of 1.2m is spun two times by using the three-wheel staggered forward spinning method, and the three-wheel staggered forward spin The stagger amount in the pressing method is set to 6mm; the spinning piece A is obtained, and the spinning piece A is a straight cylinder of equal thickness or a straight cylinder section 3 with outer ring end frames at both ends; the size of the spinning piece A is: total length is 3700mm, the thickness of the straight section 3 is 5mm, and the...

Embodiment 2

[0148] Prepare a kind of 650mm, length 4m, the ultra-high pressure gas cylinder liner that wall thickness is 6mm with both ends of head, and its ultra-high pressure gas cylinder rated pressure requirement is 50Mpa, specifically comprises the following operation steps:

[0149] S1, the preparation of aluminum alloy liner spinning tube, this step specifically includes the following steps:

[0150] S1a, the spinning forming of the straight section 3 of the aluminum alloy liner spinning tube, the seamless pipe with a length of 1.5m is 2 times spinning by the three-wheel staggered reverse-spinning method, and the three-wheel staggered reverse spin The misalignment in the pressing method is set to 6mm;

[0151] The spinning part A is obtained, and the spinning part A is a straight tube of equal thickness or a straight tube section 3 with an outer circumferential end frame at both ends; the size of the spinning part A is: the total length is 4200mm, and the thickness of the straight ...

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Abstract

The invention provides an ultrahigh-pressure gas cylinder liner with two end sockets and a manufacturing method thereof. The ultrahigh-pressure gas cylinder liner is an aluminum alloy liner with an integrated seamless structure with two ends close to form a seal head and a bottle mouth, the length of the aluminum alloy liner is smaller than 5 meters, the nominal outer diameter of a straight cylinder section is phi 406-phi 850 mm, and the nominal pressure of an ultrahigh-pressure gas cylinder is 35-70 Mpa. According to the ultrahigh-pressure gas cylinder liner with two end sockets, a spinning processing method is generally adopted, the whole product is free of weld joints, the preparation process is simple, the operation is convenient, the energy consumption is low, the pollution is small,and the raw material cost is saved. The ultrahigh-pressure gas cylinder liner with two end sockets is processed by adopting pipe blank as the raw material, and has the characteristics of being high inreliability, thin in wall and light in weight; the material structure is uniform and compact, the overall strength effect is excellent, the high-pressure resistance is achieved, and the ultrahigh-pressure gas cylinder liner with two end sockets has important significance on the manufacturing of the ultrahigh-pressure gas cylinder.

Description

technical field [0001] The invention belongs to the technical field of high-pressure containers, and in particular relates to an inner liner of an ultra-high-pressure gas cylinder with two ends sealed and a manufacturing method thereof. Background technique [0002] With the rapid development and industrialization of hydrogen fuel cells and electric vehicles, the research and construction of hydrogen source technology and hydrogen energy infrastructure have attracted great attention from developed countries. Safe and economical hydrogen storage and transportation technology is the key to promote the practical and industrialization of hydrogen energy utilization. High-pressure hydrogen storage using ultra-high pressure gas cylinders with a pressure of 35-70MPa is the most commonly used and most direct way of hydrogen storage. High-pressure hydrogen storage can be used at room temperature, and the hydrogen can be released directly through the adjustment of the valve. It has t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17C1/00
CPCF17C1/00F17C2209/2181
Inventor 王东坡马世成汪宇羿赵文龙张月倩孙昂
Owner AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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