Numerical study on the dynamic characteristics of a reactor coolant pump ring seal

doi:10.11990/jheu.202107077

	Numerical study on the dynamic characteristics of a reactor coolant pump ring seal
其他题名	核主泵口环密封动力学特性数值研究
	Feng, Dewei 1; Yan, Fangquan 2; Han, Baohua 2; Pang, Minchao 1; Li, Yibin1 ; Wang, Yan 3
	2024-02
发表期刊	Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University
ISSN	1006-7043
卷号	45 期号:2 页码:298-305
摘要	To study the influence of a seal ring on the rotor dynamic characteristics of a reactor coolant pump, considering the seal ring of a Hua-long pressurized reactor 1000 coolant pump as the research object and applying the rotor dynamics theory, the whirl rotor dynamic equation under the small disturbance model was established. Based on the CFD quasi-steady state method, the internal flow field of the seal clearance region was numerically simulated to explore the effects of speed, pressure difference, and ring structure on the dynamic characteristics and stability of the rotor. The results reveal that the greater the speed and pressure difference are, the more important the effect of the whirl ratio on the sealing force is, and the absolute values of the stiffness and damping coefficients increase. Rotation speed has a considerable effect on the cross-stiffness and cross-damping coefficients. The cross-stiffness coefficients of the plane seal and the labyrinth seal increase by 6. 92-fold and 4. 13-fold, respectively, and the cross-damping coefficients increase by 15. 4-fold and 6. 25-fold, respectively. The pressure difference has a considerable effect on the direct-stiffness coefficient, which increases by 6. 2-fold and 9. 1-fold for the plane and labyrinth seals, respectively. Simultaneously, the labyrinth seal has a smaller vortex coefficient Ωf and better structural stability than the plane seal. © 2024 Editorial Board of Journal of Harbin Engineering. All rights reserved.
关键词	Coolants Damping Pressure effects Pumps Seals Stability Stiffness Damping coefficients Dynamics characteristic Labyrinth Seal Pressure differences Reactor coolant pumps Ring seals Rotor stability Rotors dynamics Stiffness coefficients Structure of the ring
DOI	10.11990/jheu.202107077
收录类别	EI
语种	中文
出版者	Editorial Board of Journal of Harbin Engineering
EI入藏号	20240815611700
EI主题词	Computational fluid dynamics
EI分类号	618.2 Pumps ; 619.1.1 Pipe Accessories ; 723.5 Computer Applications ; 803 Chemical Agents and Basic Industrial Chemicals ; 931.1 Mechanics ; 951 Materials Science
原始文献类型	Journal article (JA)
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/169926
专题	能源与动力工程学院
通讯作者	Li, Yibin
作者单位	1.School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.Nuclear Power Pump Co., Ltd., Shenyang Blower Works Group, Shenyang; 110869, China; 3.Science and Technology on Research System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu; 610213, China
第一作者单位	新能源学院
通讯作者单位	新能源学院
第一作者的第一单位	新能源学院
推荐引用方式 GB/T 7714	Feng, Dewei,Yan, Fangquan,Han, Baohua,et al. Numerical study on the dynamic characteristics of a reactor coolant pump ring seal[J]. Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University,2024,45(2):298-305.
APA	Feng, Dewei,Yan, Fangquan,Han, Baohua,Pang, Minchao,Li, Yibin,&Wang, Yan.(2024).Numerical study on the dynamic characteristics of a reactor coolant pump ring seal.Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University,45(2),298-305.
MLA	Feng, Dewei,et al."Numerical study on the dynamic characteristics of a reactor coolant pump ring seal".Harbin Gongcheng Daxue Xuebao/Journal of Harbin Engineering University 45.2(2024):298-305.