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Ultrahigh pressure gas bottle inner container and manufacturing method

A manufacturing method and technology of compressed gas cylinders, applied to other manufacturing equipment/tools, manufacturing tools, container filling methods, etc., can solve problems such as poor reliability, heavy quality, and small volume of ultra-high pressure gas cylinders, and achieve light weight and low pollution , the effect of strict surface quality control

Active Publication Date: 2019-04-05
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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  • Ultrahigh pressure gas bottle inner container and manufacturing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0131] Prepare an ultra-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 ultra-high pressure gas cylinder is required to be 70Mpa, specifically including the following steps:

[0132] S1, back cover 1 spinning

[0133] Select a slab with a thickness of 20mm and a diameter of Φ1200mm as the spinning blank, first heat the slab to be spun to 360°C, write the spinning program according to the following parameters, and perform ordinary spinning:

[0134] First, carry out 3 times of double-spin wheel multi-pass mirror image ordinary spinning for pre-forming spinning, and the spinning process is non-fitting mold spinning;

[0135] Then after 3 passes of forming and spinning of the back cover section 1, in the spinning process, the gradual thickness spinning method is used for spinning;

[0136] After 6 passes of double-spin wheel and multi-pass mirror image ordinary spinning, the straight-through barr...

Embodiment 2

[0174] Prepare an ultra-high pressure gas cylinder liner with a diameter of 650mm, a length of 4m, and a wall thickness of 6mm. The rated pressure of the ultra-high pressure gas cylinder is required to be 50Mpa, specifically including the following steps:

[0175] S1, back cover 1 spinning

[0176] Select a slab with a thickness of 25mm and a diameter of Φ1500mm as the spinning blank, first heat the slab to be spun to 360°C, write the spinning program according to the following parameters, and perform ordinary spinning:

[0177] First, carry out 3 times of double-spin wheel multi-pass mirror image ordinary spinning for pre-forming spinning, and the spinning process is non-fitting mold spinning;

[0178] Then after 3 passes of forming and spinning of the back cover section 1, in the spinning process, the gradual thickness spinning method is used for spinning;

[0179] After 6 passes of double-spin wheel and multi-pass mirror image ordinary spinning, the straight-through barrel...

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Abstract

The invention provides an ultrahigh pressure gas bottle inner container and a manufacturing method. The gas bottle inner container is an integrated seamless structure aluminum alloy inner container with one end with a seal bottom and the other end closed up to form a seal head and a bottle opening; the inner container comprises the seal bottom, a straight cylinder segment, the seal head and the bottle opening, the seal bottom and the seal head are located on the two sides of the straight cylinder segment, the bottle opening is located on the seal head, the length of the aluminum alloy inner container is smaller than 5 m, the nominal outside diameter of the straight cylinder segment is phi 406 mm to phi 850 mm, and the rated pressure of the high-pressure gas bottle is 35 to 70 Mpa. The blank is adopted as the raw material, the rotary pressure machining method is adopted, the product is wholly free of welding line, the preparing process is simple, operation is convenient, energy consumption is low, the pollution is small, in the whole manufacturing process, the losses of the raw material are small, and the gas bottle obtained through the manufacturing method has the advantages of being high in reliability, thin in wall, and small in mass. The inner material structure is compact and uniform, the whole strength effect is excellent, the high pressure resistance is achieved, and themethod has the important significance in high-pressure gas bottle manufacturing.

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 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 the advantages of simp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C1/00F17C13/00B23P23/04
CPCF17C1/00F17C13/002B23P23/04F17C2201/0104
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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