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Flexible fastening mounting bottom cover for heavy-load slender winding gas cylinder

A winding gas cylinder, slender technology, which is applied in the field of flexible fastening installation bottom cover, can solve the problem of unsuitable volume of the installation interface, achieve good follow-up deformation ability, good connection ability, and improve the effect of mechanical resistance

Active Publication Date: 2021-09-07
LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of this application is to provide a flexible fastening installation bottom cover for heavy-duty slender winding gas cylinders, to solve the traditional installation interface in the related art It cannot be applied to the problem of fixing large volume and large load capacity cylinders

Method used

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  • Flexible fastening mounting bottom cover for heavy-load slender winding gas cylinder
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  • Flexible fastening mounting bottom cover for heavy-load slender winding gas cylinder

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specific Embodiment

[0048] A specific embodiment of the flexible fastening installation bottom cover for heavy-duty elongated wound gas cylinders of the present application is as follows:

[0049] Carbon fiber wound slender, high-pressure thin-walled xenon cylinder made of heavy-duty composite materials, the base wall thickness of the thin-walled inner lining is 0.8mm, the load capacity is 181.5kg, the length is 1643mm, the diameter is φ300mm, and the aspect ratio is 5.5;

[0050] For the flexible fastening installation bottom cover of the above-mentioned carbon fiber wound composite gas cylinder, along its axial direction, it is divided into a flexible structure with a thin wall thickness (60mm in length) and a rigid structure with a thicker thickness (140mm in length). The thin wall thickness of the flexible structure is 1.2mm Gradually change to 2mm (inclination of about 1°), 48 opening expansion grooves with a width of 1mm are evenly distributed on the circumference of the installation bottom ...

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Abstract

The invention discloses a flexible fastening mounting bottom cover for a heavy-load slender winding gas cylinder. The flexible fastening mounting bottom cover for the heavy-load slender winding gas cylinder comprises a flexible structure with a first end used for achieving follow-up deformation and a rigid structure with a second end used for improving the space dynamics environment resisting capacity under the large load, wherein the flexible structure is of an inverted cone ring bottom cover structure, and the rigid structure is of a flowerpot type bottom support structure. The flexible fastening mounting bottom cover not only has the capability of bearing large-amount vibration assessment, but also can realize expansion and contraction large deformation consistency synchronous following. The good follow-up deformation capability is achieved, the good connection capability with a multi-layer non-metal dissimilar material is achieved, and the capability of resisting the spatial dynamic environment under the large load is achieved, and the flexible fastening mounting bottom cover is very practical for the large-load slender composite material gas cylinder with an ultra-thin-wall lining on a large or ultra-large satellite platform; and the actual installation requirement of the future development trend for the light composite material gas cylinder for a large spacecraft is met.

Description

technical field [0001] The present application relates to the technical field of composite material gas cylinders, in particular to a flexible fastening installation bottom cover for heavy-duty slender wound gas cylinders. Background technique [0002] Due to the high height of the main load-bearing structure of large or super-large satellite platforms and the limited layout space, the xenon gas cylinders used in the electric propulsion system have a large load capacity, which determines that the gas cylinders can only be slender and restrained by fixed supports at the upper and lower ends. Arrange the installation interface in the middle of the cylinder. The traditional installation interface adopts a metal flange structure, which is directly connected to the joint part of the thin-walled lining through a welding structure. It is only suitable for the needs of small-load heavy-duty gas cylinders with a small aspect ratio, and is used to carry light gases such as helium and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C1/00F17C13/08
CPCF17C1/00F17C13/088F17C2201/0109F17C2203/0602F17C2203/0663F17C2205/01F17C2270/0194Y02E60/32
Inventor 李玉峰
Owner LANZHOU INST OF PHYSICS CHINESE ACADEMY OF SPACE TECH
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