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Aluminum alloy inner container for ultra-large high-pressure air bottle and manufacturing method thereof

A high-pressure gas cylinder and super-sized technology, which is applied to the aluminum alloy liner for super-large high-pressure gas cylinders and its manufacturing field, can solve the problems of small volume, heavy quality, and poor reliability of high-pressure gas cylinders, and achieve convenient operation and low pollution , The effect of less loss of raw materials

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 high-pressure gas cylinders

Method used

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  • Aluminum alloy inner container for ultra-large high-pressure air bottle and manufacturing method thereof
  • Aluminum alloy inner container for ultra-large high-pressure air bottle and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0115] Prepare an aluminum alloy inner liner for super-sized high-pressure gas cylinders with a diameter of 300mm, a length of 10m, and a wall thickness of 6mm. The rated pressure of the high-pressure gas cylinder is 25Mpa, which specifically includes the following steps:

[0116] S1, the aluminum alloy inner liner spinning tube is prepared, the straight tube section 3 of the seamless pipe is subjected to multi-pass powerful external spinning forming processing using the ultra-long cylinder tension spinning equipment to obtain the aluminum alloy inner liner spinning tube; this step Specifically include the following steps:

[0117] S1a, the spinning forming of the straight section 3 of the aluminum alloy inner liner spinning tube, the ultra-long cylinder tension spinning equipment is used to spin a seamless pipe with a length of 1600mm for 4 times using a tension spinning device with a three-wheel offset positive spinning method. During the pressing process, the offset amount in th...

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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 specifically relates to an aluminum alloy inner liner for super-large-size high-pressure gas cylinders and a manufacturing method thereof. Background technique [0002] High-pressure gas cylinders have been widely used in various industries in the national economy such as industrial and mining production, construction, transportation, marine, aviation, medical care, and military. The capacity of the high-pressure gas cylinder, the thickness of the bottle wall, and the manufacturing process and materials all affect the performance of the high-pressure gas cylinder. For example, natural gas and hydrogen are a clean energy that is developed and widely used worldwide. At present, the storage, transportation and use of compressed natural gas (CNG), compressed hydrogen and other compressed industrial gases in 20-30MP high-pressure gas cylinders are the main methods for transporting the...

Claims

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Application Information

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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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