Aluminum alloy liner for super-large high-pressure gas cylinder and manufacturing method thereof

Abstract

The invention provides an aluminum alloy inner container for an ultra-large high-pressure air bottle and a manufacturing method. The aluminum alloy inner container comprises a straight cylinder segment, a seal head A and a seal head B, wherein the seal head A and the seal head B are located on the two ends of the straight cylinder segment, a bottle opening A and a bottle opening B are located on the seal head A and the seal head B correspondingly, the length of the aluminum alloy inner container for the ultra-large high-pressure air bottle is 5 to 13 m, the nominal outside diameter of the straight cylinder segment is phi 300 mm to phi 850 mm, and the rated pressure of the high-pressure air bottle is 20 to 30 Mpa. The rotary pressure machining method is adopted generally, 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, the raw material cost is saved, and the aluminum alloy inner container for the ultra-large high-pressure air bottle obtained through the manufacturing method has the advantages of being 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 the method has the importantsignificance in high-pressure air bottle manufacturing.

Description

technical field [0001] The invention belongs to the technical field of high-pressure containers, and in particular relates to an aluminum alloy liner for a super-large 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 ...

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

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