文献类型：期刊文献

英文题名：Theoretical Study on Thermal Hydraulic Expansion Process of Stainless Steel Lined Clad Pipe

作者：Liu, Yanbin[1];Wang, Xuesheng[1];Yu, Junjiang[1];Qin, Xinya[1];Zheng, Jiameng[1];Sang, Guoxun[1]

机构：[1]East China Univ Sci & Technol, Key Lab Pressure Syst & Safety, Minist Educ, Shanghai 200237, Peoples R China

年份：2022

卷号：144

期号：6

外文期刊名：JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME

收录：;EI(收录号：20225213314391);WOS:【SCI-EXPANDED(收录号:WOS:000876567600020)】；

语种：英文

外文关键词：stainless steel lined clad pipe; thermal hydraulic expansion; cold hydraulic expansion; graph method; residual contact pressure

摘要：The stainless steel lined clad pipe (SSLCP) can be widely used in different fields. Industrial SSLCP are generally manufactured by the cold hydraulic expansion (CHE) method which requires high hydraulic pressure and good sealing property. The interlayer bonding force is difficult to obtain by the CHE when there is little difference between the yield strengths of inner and outer pipes. Furthermore, the hydraulic expansion process nearly cannot be achieved when the yield strength of inner pipe is higher than that of outer pipe. The thermal hydraulic expansion (THE) method can overcome these difficulties. In this paper, the graph method was adopted to analyze the THE principles for "inner strong and outer weak (ISOW)" and "outer strong and inner weak (OSIW)" pipes. The effective hydraulic expansion criterion conditions of SSLCPs were proposed and can be used as basis of clad pipe material matching and forming process selection. Through the stress and strain analysis of inner and outer pipes during THE process, the deformation coordination conditions of elastic deformation and thermal deformation of the inner and outer pipe were established. The correlation between the residual contact pressure p*(c), the hydraulic expansion pressure p(i), and the effective temperature difference Delta T-e were derived. The calculation formula of the maximum expansion pressure p(imax) and the minimum expansion pressure p(imin) was obtained. The maximum heating temperature of outer pipe was also derived. Furthermore, the finite element analysis (FEA) method was adopted and simulated results verify the feasibility and applicability of the theory study.