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Experimental and computational failure analysis of a high pressure regulating valve in a chemical plant
Yi, JZ; Hu, HX; Zheng, YG; Zhang, Y; Hu, HX (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Peoples R China.
2016-12-01
发表期刊ENGINEERING FAILURE ANALYSIS
ISSN1350-6307
卷号70页码:188-199
摘要A high pressure regulating valve for producing ethylene vinyl acetate copolymer in a chemical plant failed after three years in service. The failure analysis of valve was performed by means of visual inspection, stereo microscopy, optical microscopy, scanning electron microscopy and computational fluid dynamics (CFD). The morphology analyses showed that the craters on the valve plug and cage, especially the end of the valve plug, were mainly caused by cavitation erosion, and the ditch damage resulted from the erosion due to impingement and scouring of the high velocity flow. The corrosivity of vinyl acetate was proved to have few effects on the materials damage. The failure reasons were further demonstrated by the simulation results, which presented the distribution of the sites suffering the high velocity flow erosion and possible cavitation erosion. The computed numerical results showed a good agreement with morphology analyses. (C) 2016 Elsevier Ltd. All rights reserved.
部门归属[yi, junzhen ; hu, hongxiang ; zheng, yugui ; zhang, yaming] chinese acad sci, inst met res, key lab nucl mat & safety assessment, 62 wencui rd, shenyang 110016, peoples r china ; [yi, junzhen] univ sci & technol china, sch mat sci & engn, hefei 230026, peoples r china
关键词Failure Analysis Chemical Plant Regulating Valve Cavitation Erosion Erosion
学科领域Engineering, Mechanical ; Materials Science, Characterization & Testing
资助者National Natural Science Foundation of China [5157010762]
收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.imr.ac.cn/handle/321006/76167
专题中国科学院金属研究所
通讯作者Hu, HX (reprint author), Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, 62 Wencui Rd, Shenyang 110016, Peoples R China.
推荐引用方式
GB/T 7714
Yi, JZ,Hu, HX,Zheng, YG,et al. Experimental and computational failure analysis of a high pressure regulating valve in a chemical plant[J]. ENGINEERING FAILURE ANALYSIS,2016,70:188-199.
APA Yi, JZ,Hu, HX,Zheng, YG,Zhang, Y,&Hu, HX .(2016).Experimental and computational failure analysis of a high pressure regulating valve in a chemical plant.ENGINEERING FAILURE ANALYSIS,70,188-199.
MLA Yi, JZ,et al."Experimental and computational failure analysis of a high pressure regulating valve in a chemical plant".ENGINEERING FAILURE ANALYSIS 70(2016):188-199.
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