Analysis of fatigue reliability for high temperature and high pressure multi-stage decompression control valve

doi:10.1088/1757-899X/322/4/042020

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Analysis of fatigue reliability for high temperature and high pressure multi-stage decompression control valve
	Yu, Long 1,2; Xu, Juanjuan 1,2; Zhang, Lifang 1,2; Xu, Xiaogang 1,2
	2018
卷号	322
DOI	10.1088/1757-899X/322/4/042020
英文摘要	Based on stress-strength interference theory to establish the reliability mathematical model for high temperature and high pressure multi-stage decompression control valve (HMDCV), and introduced to the temperature correction coefficient for revising material fatigue limit at high temperature. Reliability of key dangerous components and fatigue sensitivity curve of each component are calculated and analyzed by the means, which are analyzed the fatigue life of control valve and combined with reliability theory of control valve model. The impact proportion of each component on the control valve system fatigue failure was obtained. The results is shown that temperature correction factor makes the theoretical calculations of reliability more accurate, prediction life expectancy of main pressure parts accords with the technical requirements, and valve body and the sleeve have obvious influence on control system reliability, the stress concentration in key part of control valve can be reduced in the design process by improving structure.
会议录	2017 INTERNATIONAL SYMPOSIUM ON APPLICATION OF MATERIALS SCIENCE AND ENERGY MATERIALS (SAMSE 2017)
会议录出版者	IOP PUBLISHING LTD
会议录出版地	DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
语种	英语
资助项目	National Natural Science Foundation of China[51569012] ; Gansu Natural Science Foundation of China[1508RJZA113] ; Basic Research Project Subsidy Project of Universities in Gansu[20146302]
WOS研究方向	Energy & Fuels ; Materials Science
WOS记录号	WOS:000447413400095
内容类型	会议论文
源URL	[http://119.78.100.223/handle/2XXMBERH/36173]
专题	石油化工学院
通讯作者	Yu, Long
作者单位	1.Lanzhou Univ Technol, Sch Petro ENG, Lanzhou, Gansu, Peoples R China 2.Machinery Ind Pump & Special Valve ENG Res, Lanzhou, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Yu, Long,Xu, Juanjuan,Zhang, Lifang,et al. Analysis of fatigue reliability for high temperature and high pressure multi-stage decompression control valve[C]. 见:.