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Large-scale high-pressure storage container liner and manufacturing method thereof

A manufacturing method and liner technology, applied to other manufacturing equipment/tools, manufacturing tools, container filling methods, etc., can solve the problems of heavy quality, poor reliability, and small volume of high-pressure gas cylinders, and achieve low pollution and high reliability , the effect of convenient operation

Active Publication Date: 2020-08-11
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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  • Large-scale high-pressure storage container liner and manufacturing method thereof
  • Large-scale high-pressure storage container liner and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0125] Prepare a large-scale high-pressure gas storage cylinder liner with a diameter of 500mm, a length of 10m, 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:

[0126] S1, with back cover 1 billet overall reverse extrusion molding

[0127] Select an aluminum ingot with a height of 1000mm and a diameter of 520mm as the extrusion billet, first heat the aluminum ingot to be extruded to 300°C, and at the same time, preheat the outer extrusion mold and the inner extrusion rod to 300°C;

[0128] The aluminum ingot is placed in the extrusion die, and the billet is made into a prefabricated tube billet with a back cover 1 through 10 extrusions. During the extrusion process, the die is kept at 280-300°C;

[0129] The outer surface of the preform is processed by a turning method; the inner surface of the preform is processed by a boring method.

[0130] In this way, a seamless pipe ...

Embodiment 2

[0171] Prepare a large-scale high-pressure gas storage cylinder liner with a diameter of 780mm, a length of 12m, and a wall thickness of 8mm. The rated pressure of the high-pressure gas cylinder is required to be 20Mpa, specifically including the following steps:

[0172] S1, with back cover 1 billet overall reverse extrusion molding

[0173] Select an aluminum ingot with a height of 1200mm and a diameter of 800mm as the extrusion billet, first heat the aluminum ingot to be extruded to 300°C, and at the same time, preheat the outer extrusion mold and the inner extrusion rod to 300°C;

[0174] The aluminum ingot is placed in the extrusion die, and the billet is made into a prefabricated tube billet with a back cover 1 through 10 extrusions. During the extrusion process, the die is kept at 280-300°C;

[0175] The outer surface of the preform is processed by a turning method; the inner surface of the preform is processed by a boring method.

[0176] In this way, a seamless pipe ...

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Abstract

The invention provides an inner tank of a large high-pressure gas storing and transporting cylinder and a manufacturing method thereof. The inner tank of the gas cylinder is an aluminum alloy inner tank, wherein one end of the inner tank is provided with a seal bottom, and the other end of the inner tank is closed to form a seal head; a cylinder port is of an integrated seamless structure; the inner tank comprises a straight barrel section, the seal bottom and the seal head; the seal bottom and the seal head are correspondingly positioned at two ends of the straight barrel section; the cylinder port is positioned in the seal head; the aluminum alloy inner tank is 5-13m in length; and the nominal outside diameter of the straight barrel section is phi 300-850mm. According to the inner tank of the large high-pressure gas storing and transporting cylinder, a plate blank is used as a raw material and is completely processed by a rotary pressing method; the whole product is free from a jointseal; the preparation processes are simple; the operation is convenient; the energy consumption is small; the pollution is low; the loss of the raw material in the manufacturing process is low. The aluminum alloy inner tank processed by the manufacturing method has the characteristics of being oversize, high in reliability, thin in wall, and light in mass; the material structure is uniform and dense; the overall strength effect is outstanding; the inner tank has the characteristic of being resistant to high pressure and is of an important significance to the manufacturing of oversized high-pressure gas cylinders.

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 large-scale high-pressure gas storage 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 fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17C1/00F17C13/00B23P23/04
CPCB23P23/04F17C1/00F17C13/002F17C2201/0104
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