Boost pressure mechanism in hydraulic cylinders for control rod hydraulic drive systems

LIU Qianfeng; BO Hanliang; QIN Benke

doi:10.16511/j.cnki.qhdxxb.2015.24.009

PDF(1398 KB)

Journal of Tsinghua University(Science and Technology) ›› 2015, Vol. 55 ›› Issue (12) : 1324-1331. DOI: 10.16511/j.cnki.qhdxxb.2015.24.009

NUCLEAR AND NEW ENERGY ENGINEERING

Boost pressure mechanism in hydraulic cylinders for control rod hydraulic drive systems

{{article.zuoZhe_EN}}

Author information +

History +

Abstract

The stepping of a hydraulic cylinder was analyzed based on the fluid mechanics for a control rod hydraulic drive system (CRHDS). The pressure transient was analyzed experimentally and theoretically for abnormal operating conditions. The results show that as the cylinder pressure increases, the pressure has an inflexion point when the inner cylinder reaches the top. The inner cylinder displacement increases while the speed of the inner cylinder decrease as the pressure increases. The flow velocity at the sealing ring increases due to the higher pressure between the two surfaces of the inner cylinder. This mechanism can be used to analyze the cylinder performance.

Key words

control rod hydraulic drive system (CRHDS) / hydraulic cylinders / model for boost pressure

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

LIU Qianfeng, BO Hanliang, QIN Benke. Boost pressure mechanism in hydraulic cylinders for control rod hydraulic drive systems[J]. Journal of Tsinghua University(Science and Technology). 2015, 55(12): 1324-1331 https://doi.org/10.16511/j.cnki.qhdxxb.2015.24.009

References

[1] 薄涵亮, 郑文翔, 王大中, 等.核反应堆控制棒水压驱动技术 [J]. 清华大学学报: 自然科学版, 2005, 45(3): 424-427.BO Hanliang, ZHENG Wenxiang, WANG Dazhong, et al. Hydraulic control rod drive technology for nuclear reactors [J]. Journal of Tsinghua University: Science& Technology, 2005, 45(3): 424-427(in Chinese).
[2] 秦本科, 薄涵亮, 郑文祥, 等. 控控制棒水压驱动机构单缸步进动态过程 [J]. 清华大学学报: 自然科学版, 2005, 45(3): 428-431. QIN Benke, BO Hanliang, ZHENG Wenxiang, et al.Single cylinder stepping motion for the control rod hydraulic drive mechanism [J]. Journal of Tsinghua University: Science & Technology, 2005, 45(3): 428-431(in Chinese).
[3] 秦本科, 薄涵亮, 郑文祥, 等. 控制棒水压驱动机构水压缸步升压力变化过程 [J]. 清华大学学报: 自然科学版, 2008, 48(12): 2118-2121.QIN Benke, BO Hanliang, ZHENG Wenxiang, et al. Pressure transients in hydraulic cylinder step-up mot ion of control rod hydraulic drive mechanism [J]. Journal of Tsinghua University : Science & Technology, 2008, 48(12): 2118-2121 (in Chinese).
[4] 秦本科, 薄涵亮, 郑文祥. 控制棒水压驱动机构水压缸步降过程研究 [J]. 原子能科学技术, 2009, 43(4): 345-349.QIN Benke, BO Hanliang, ZHENG Wenxiang. Study on step-down dynamic process of hydraulic cylinder for control rod hydraulic drive mechanism [J]. Atomic Energy Science and Technology, 2009, 43(4): 345-349. (in Chinese)
[5] 秦本科, 薄涵亮, 郑文祥. 控制棒水压驱动机构水压缸步降过程运动阻力研究 [J]. 原子能科学技术, 2009, 43(4): 435-440. QIN Benke, BO Hanliang, ZHENG Wenxiang. Kinetic resistance of hydraulic cylinder for control rod hydraulic drive mechanism in step-down motion process [J]. Atomic Energy Science and Technology, 2009, 43(4) : 345-349. (in Chinese)
[6] 秦本科, 薄涵亮, 郑文祥. 水压缸活塞环密封流动阻力研究 [J]. 原子能科学技术, 2005, 39(3): 236-239.QIN Benke, BO Hanliang, ZHENG Wenxiang. Flow Resistance of hydraulic cylinder piston ring seal structure [J].Atomic Energy Science and Technology, 2005, 39(3): 236-239. (inChinese)
[7] 秦本科, 薄涵亮, 郑文祥. 水压缸活塞环密封运动阻力研究 [J]. 原子能科学技术, 2006, 40(2): 235-239.QIN Benke, BO Hanliang, ZHENG Wenxiang. Kinetic resistance of hydraulic cylinder piston ring seal structure [J]. Atomic Energy Science and Technology, 2006, 40(2): 235-239. (in Chinese)
[8] 秦本科. 核反应堆控制棒水压驱动技术研究[D]. 北京: 清华大学, 2005.QIN Benke. Research on the Control rod Hydraulic Drive Technology [D]. Beijing: Tsinghua University, 2005. (in Chinese)
[9] 华绍曾, 杨学宁. 实用流体阻力手册 [M]. 北京: 国防工业出版社, 1985: 422.HUA Shaozeng, YANG Xuening. Applied Fluid Resistance Handbook [M]. Beijing: Defense Industry Press,1985: 422.(in Chinese)
[10] 归柯庭, 汪军, 王秋颖. 工程流体力学 [M]. 北京: 科学技术出版社, 2003: 15.GUI Keting, WANG Jun, WANG Qiuying. Engineering Fluid Mechanics [M]. Beijing: Science and Technology Press, 2003: 15. (in Chinese)
[11] 秋元德三. 水击与压力脉动 [M]. 北京: 电力工业出版社, 1981: 35.Akimoto Narumi. Water Hammer and Pressure Fluctuation [M]. Beijing: Electric Power Industry Press, 1981: 35. (in Chinese)
[12] Reynolds W. Thermodynamic Properties IN S.I.[M]. Stanford, USA: Stanford University Press, 1983.
[13] 薄涵亮. 卡林那循环的热力学分析 [D]. 西安: 西安交通大学, 1988.BO Hanliang. Thermodynamic Analysis of Kalina Cycle [D]. Xi'an: Xi'an Jiaotong University, 1988.(in Chinese)