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Manufacturing method of double-head high-pressure gas cylinder liner

A technology for high-pressure gas cylinders and manufacturing methods, applied in the field of high-pressure containers, capable of solving problems such as heavy weight, poor reliability, and small volume of high-pressure gas cylinders, and achieving the effects of low pollution, increased overall diameter and size, and convenient operation

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 high-pressure gas cylinders

Method used

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  • Manufacturing method of double-head high-pressure gas cylinder liner
  • Manufacturing method of double-head high-pressure gas cylinder liner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0106] Prepare a double-headed high-pressure gas cylinder liner with a diameter of Φ420mm, a length of 2.5m, and a wall thickness of 4mm. The rated pressure of the high-pressure gas cylinder is required to be 25Mpa, specifically including the following steps:

[0107] S1, the preparation of aluminum alloy liner spinning tube, this step specifically includes the following steps:

[0108] S11, the spinning forming of the straight section 3 of the aluminum alloy liner spinning tube, using the three-wheel staggered forward spinning method to carry out two-pass spinning on the seamless tube blank with a length of 1m, and the three-wheel staggered forward spin The misalignment in the pressing method is set to 6mm;

[0109] 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 3000mm, and the thickness of t...

Embodiment 2

[0142] Prepare a double-head high-pressure gas cylinder liner with a diameter of 618mm, a length of 4.5m, and a wall thickness of 6mm. The rated pressure of the high-pressure gas cylinder is required to be 25Mpa, specifically including the following steps:

[0143] S1, the preparation of aluminum alloy liner spinning tube, this step specifically includes the following steps:

[0144] S11, Spinning forming of the straight section 3 of the aluminum alloy liner spinning tube, the seamless tube blank with a length of 1.5m is 3 times spinning by the three-wheel staggered reverse spinning method, and the three-wheel staggered reverse spin The misalignment in the spinning method is set to 6mm;

[0145] 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 4700mm, and the thickness of the straight tube secti...

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Abstract

The invention provides a double-sealing-head high-pressure gas cylinder liner and a manufacturing method thereof. The double-sealing-head high-pressure gas cylinder liner is an aluminum alloy liner oftwo-end closing formed sealing heads and bottle openings in an integral seamless structure, and comprises a straight cylinder section, the A sealing head and the B sealing head, wherein the A sealinghead and the B sealing head are correspondingly positioned at the two ends of the straight cylinder section, and the A bottle opening and the B bottle opening are located on the the A sealing head and the B sealing head respectively; and the length of the double-sealing-head high-pressure gas cylinder liner is smaller than 5m, the nominal outer diameter of the straight cylinder section is phi 406-phi 850mm, and the rated pressure of a high-pressure gas cylinder is 20-30 Mpa. According to the liner, a spinning machining method is adopted generally, products are free of weld seams wholly, the production process is simple, the operation is convenient, the energy consumption is low, the pollution is small, and the raw material cost is saved; the high-pressure gas cylinder liner machined through the manufacturing method has the characteristics of being high in reliability, thin in wall and light in weight; and the inner material structure of the liner is uniform and compact, the overall strength effect is excellent, high pressure resistance is achieved, and the liner has important significance on the manufacturing of the high-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 a double-head high-pressure gas cylinder and a manufacturing method thereof. Background technique [0002] High-pressure gas cylinders have been widely used in various industries of the national economy such as industrial and mining production, construction, transportation, ocean, aviation, medical treatment, and military affairs. The capacity of the high-pressure gas cylinder, the thickness of the bottle wall, the manufacturing process and materials will all affect the performance of the high-pressure gas cylinder. For example, natural gas and hydrogen are clean energy sources that are developed and widely used worldwide. At present, the storage and transportation of 20-30MP high-pressure gas cylinders and the use of compressed natural gas (CNG), compressed hydrogen and other compressed industrial gases are the main ways for the mo...

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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