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Failure analysis of the blackwater regulating valve in the coal chemical industry
Zheng, Kexin1,2; Hu, Hongxiang1; Chen, Fengguan3; Zheng, Yugui1
Corresponding AuthorHu, Hongxiang() ; Zheng, Yugui()
2021-07-01
Source PublicationENGINEERING FAILURE ANALYSIS
ISSN1350-6307
Volume125Pages:15
AbstractValves' failure is common in the coal industry due to their severe working conditions, like highvelocity erosion, cavitation erosion, and so on. The damage morphologies of the blackwater regulating valve (BRV) in coal chemical equipment were investigated by stereo microscopy, metallographic microscopy, and scanning electron microscopy (SEM). Failure causes of the valve were analyzed from the material structure, hole defects, composition, hardness of the material, corrosive media, and computational fluid dynamics (CFD). The results showed the damage on the valve spool and seat was attributed to the combined effect of slurry erosion, cavitation erosion, and corrosion. The soft cobalt phase was preferentially removed followed by the pulling-off of WC particles, which is the failure mechanism of BRV.
KeywordFailure analysis Coal chemical industry Blackwater regulating valve Erosion-corrosion Cavitation erosion
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China
DOI10.1016/j.engfailanal.2021.105442
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2018YFC0808500] ; National Natural Science Foundation of China[51971229] ; National Natural Science Foundation of China[51871226]
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Mechanical ; Materials Science, Characterization & Testing
WOS IDWOS:000652333800001
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/160955
Collection中国科学院金属研究所
Corresponding AuthorHu, Hongxiang; Zheng, Yugui
Affiliation1.Chinese Acad Sci, CAS Key Lab Nucl Mat & Safety Assessment, Inst Met Res, 62 Wencui Rd, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Hefei Gen Machinery Res Inst, Hefei 230031, Peoples R China
Recommended Citation
GB/T 7714
Zheng, Kexin,Hu, Hongxiang,Chen, Fengguan,et al. Failure analysis of the blackwater regulating valve in the coal chemical industry[J]. ENGINEERING FAILURE ANALYSIS,2021,125:15.
APA Zheng, Kexin,Hu, Hongxiang,Chen, Fengguan,&Zheng, Yugui.(2021).Failure analysis of the blackwater regulating valve in the coal chemical industry.ENGINEERING FAILURE ANALYSIS,125,15.
MLA Zheng, Kexin,et al."Failure analysis of the blackwater regulating valve in the coal chemical industry".ENGINEERING FAILURE ANALYSIS 125(2021):15.
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