Numerical optimization on blade number matching law of impeller and guide vane in reactor coolant pump

doi:10.3901/JME.2015.15.053

	Numerical optimization on blade number matching law of impeller and guide vane in reactor coolant pump
	Yang, Congxin1,2 ; Qi, Yanan 1; Li, Yibin1,2 ; Wang, Xiuyong1,2 ; Cheng, Xiaorui1,2
	2015-08-05
发表期刊	Jixie Gongcheng Xuebao/Journal of Mechanical Engineering
ISSN	05776686
卷号	51 期号:15 页码:53-60
摘要	In order to clarify the effect of blade number matching between impeller and guide vane on the hydraulic performances of the reactor coolant pump (RCP), model pumps (at a scale=0.5) are studied. Many RCPs with different matching laws between the impeller blade number Z1 and the guide vane blade number Z2 are built based on the references and geometry parameters of the RCP. Then their performances are predicted by numerical simulation. After the performances are analyzed, results in the studies are as follows. When the impeller blade number increases with the other geometry parameters of the RCP constant, the heads of impeller and pump both tend to increase with increasing trend gradually slow. When the guide vane blade number increases with the other geometry parameters of the RCP constant, the best pump can make efficiency improve by 8.48% relative to the worst one. Vortices and hydraulic loss within the guide vane and circular casing are mainly concentrated in the hemisphere region which starts with the pump outlet and goes along the impeller rotation direction. The circular casing has more hydraulic loss than the other flow components in the RCP. And the hydraulic loss of circular casing at least accounts for 36.4% of the total hydraulic loss. What is more, at the designed condition, best blade number matching laws between impeller and guide vane are (Z1=4, Z2=9), (Z1=5, Z2=12), (Z1=6, Z2=11) and (Z1=3, Z2=7), namely the efficiency and head of the RCP get the best value on condition that the guide vane blade number is about double of the impeller blade number and the blade numbers are both relatively prime. In conclusion, the above results can provide reference for choosing blade numbers matching law between impeller and guide vane of the RCP. ©, 2015, Journal of Mechanical Engineering. All right reserved.
关键词	Coolants Efficiency Geometry Optimization Well pumps Blade numbers Designed conditions Geometry parameter Guide vane Hydraulic performance Matching Numerical optimizations Reactor coolant pumps
DOI	10.3901/JME.2015.15.053
收录类别	EI
语种	中文
出版者	Editorial Office of Chinese Journal of Mechanical Engineering
EI入藏号	20153701258928
EI主题词	Impellers
EI分类号	601.2 Machine Components - 618.2 Pumps - 803 Chemical Agents and Basic Industrial Chemicals - 913.1 Production Engineering - 921 Mathematics - 921.5 Optimization Techniques
来源库	Compendex
分类代码	601.2 Machine Components - 618.2 Pumps - 803 Chemical Agents and Basic Industrial Chemicals - 913.1 Production Engineering - 921 Mathematics - 921.5 Optimization Techniques
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/112329
专题	能源与动力工程学院新能源学院
作者单位	1.School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Key Laboratory of Fluid machinery and Systems of Gansu Province, Lanzhou University of Technology, Lanzhou; 730050, China
第一作者单位	新能源学院; 兰州理工大学
第一作者的第一单位	新能源学院
推荐引用方式 GB/T 7714	Yang, Congxin,Qi, Yanan,Li, Yibin,et al. Numerical optimization on blade number matching law of impeller and guide vane in reactor coolant pump[J]. Jixie Gongcheng Xuebao/Journal of Mechanical Engineering,2015,51(15):53-60.
APA	Yang, Congxin,Qi, Yanan,Li, Yibin,Wang, Xiuyong,&Cheng, Xiaorui.(2015).Numerical optimization on blade number matching law of impeller and guide vane in reactor coolant pump.Jixie Gongcheng Xuebao/Journal of Mechanical Engineering,51(15),53-60.
MLA	Yang, Congxin,et al."Numerical optimization on blade number matching law of impeller and guide vane in reactor coolant pump".Jixie Gongcheng Xuebao/Journal of Mechanical Engineering 51.15(2015):53-60.