钢制内胆环缠绕气瓶壁厚设计方法对比分析

玻璃钢/复合材料 ›› 2016, Vol. 0 ›› Issue (3): 44-48.

钢制内胆环缠绕气瓶壁厚设计方法对比分析

刘培启¹,陈祖志²,周天送¹,古纯霖²

1.大连理工大学化工机械学院,大连116024;
2.中国特种设备检测研究院,北京100013

收稿日期:2015-11-30 出版日期:2016-03-28 发布日期:2016-03-28
作者简介:刘培启(1981-),男,博士,副教授,主要从事气体制冷和分离等特种设备研发,以及气瓶等压力容器应力分析评定工作,lpq21cn@dlut.edu.cn。

COMPARISON OF WALL-THICKNESS DESIGN METHODS OF HOOP WRAPPEDCYLINDERS WITH STEEL LINER

LIU Pei-qi¹, CHEN Zu-zhi², ZHOU Tian-song¹, GU Chun-lin²

1.School of Chemical Machinery,Dalian University of Technology,Dalian 116024, China;
2.China Special Equipment Inspection and Research Center,Beijing 100013, China

Received:2015-11-30 Online:2016-03-28 Published:2016-03-28

摘要/Abstract

摘要： 由于相关钢制内胆环缠绕气瓶设计制造标准中未明确指定内胆壁厚的设计公式,使得市面上同样规格的环缠绕气瓶内胆壁厚和自紧压力等参数存在一定差异,给监管工作带来不便。首先全面总结了环缠绕气瓶钢制内胆的设计方法,然后根据设计结果建立有限元分析模型,对比分析了不同标准体系设计的气瓶内胆壁厚的差异,以及由于壁厚差异而引起的纤维应力比和自紧压力的变化。结果表明,GB 5099相比于其他两种标准体系内胆设计壁厚偏大,相差约4.35%~6.0%;导致相应的环缠绕气瓶纤维应力比相差3.5%~30.8%,自紧压力的合理范围也存在差异。

关键词: 环缠绕气瓶, 内胆设计, 纤维应力比, 自紧压力

Abstract: Because the wall-thickness design formulas of liner are not explicitly specified in related design and manufacturing standards of hoop wrapped cylinders, which makes certain difference among some parameters, such as wall thickness of liner and autofrettage pressure, about the same specification in the market. Therefor, some inconveniences are brought to the regulatory work. Design method of steel liner was comprehensively summarized firstly; then the finite element analysis models are established according to design results; at last, wall thicknesses differences caused by different standard systems and changes of fiber stress ratio and autofrettage pressure caused by differences of wall thickness are compared and analyzed. The results showed that wall thickness designed by GB 5099 is larger compared with the other two kinds of standard systems, and the difference is about 4.35%~6.0%, leading to the difference of fiber stress ratio ranges from 3.5% to 30.8%. At the same time, the reasonable range of autofrettage pressure is also different.

Key words: hoop wrapped cylinders, design of liner, fiber stress ratio, autofrettage pressure

中图分类号:

TB332

刘培启,陈祖志,周天送,古纯霖. 钢制内胆环缠绕气瓶壁厚设计方法对比分析[J]. 玻璃钢/复合材料, 2016, 0(3): 44-48.

LIU Pei-qi, CHEN Zu-zhi, ZHOU Tian-song, GU Chun-lin. COMPARISON OF WALL-THICKNESS DESIGN METHODS OF HOOP WRAPPEDCYLINDERS WITH STEEL LINER[J]. Fiber Reinforced Plastics/Composites, 2016, 0(3): 44-48.

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