引用本文:XU Hai-Liang,XU Cong,WU Bo.[en_title][J].Journal of Chongqing University (English Edition),2018,17(2):49~54
XU Hai-Liang,XU Cong,WU Bo.Theoretical analysis of effect of solid phase on cavitation performance of deep-sea mining pump[J].Journal of Chongqing University (English Edition),2018,17(2):49~54
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Theoretical analysis of effect of solid phase on cavitation performance of deep-sea mining pump
XU Hai-Liang1,2, XU Cong1, WU Bo1,2
1.School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, P. R. China;2.State Key Laboratory of High Performance Complex Manufacturing, Changsha 410083, P. R. China
摘要:
In view of the present situation of low cavitation performance of deep-sea mining slurry pump, the effect of solid phase on the cavitation performance of deep-sea mining pump is analyzed theoretically. The relationship between gas and liquid phases are established by cavitation nucleon theory and mass energy equation as well as solid phase and liquid phase, and then we explored the relationship between gas phase and solid phase. The results show that the critical bubble radius and solid-phase concentration flow rate during the cavitation can be related to the liquid pressure. Eq. (19) show that the larger the solid particle concentration and the solid phase flow, the earlier the cavitation will occur, and pump anti-cavitation performance will decline.
关键词:  deep-sea mining pump  solid-liquid two-phase flow  cavitation  theoretical analysis
DOI:10.11835/j.issn.1671-8224.2018.02.002
分类号:
基金项目:Funded by the National Natural Science Foundation of China (No. 51775561).
Theoretical analysis of effect of solid phase on cavitation performance of deep-sea mining pump
XU Hai-Liang1,2, XU Cong1, WU Bo1,2
1.School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, P. R. China;2.State Key Laboratory of High Performance Complex Manufacturing, Changsha 410083, P. R. China
Abstract:
In view of the present situation of low cavitation performance of deep-sea mining slurry pump, the effect of solid phase on the cavitation performance of deep-sea mining pump is analyzed theoretically. The relationship between gas and liquid phases are established by cavitation nucleon theory and mass energy equation as well as solid phase and liquid phase, and then we explored the relationship between gas phase and solid phase. The results show that the critical bubble radius and solid-phase concentration flow rate during the cavitation can be related to the liquid pressure. Eq. (19) show that the larger the solid particle concentration and the solid phase flow, the earlier the cavitation will occur, and pump anti-cavitation performance will decline.
Key words:  deep-sea mining pump  solid-liquid two-phase flow  cavitation  theoretical analysis
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