Experimental Study on Hydraulic Torque of Guide Vane of Pump Turbine under Turbine Working Condition
Abstract
In order to analyze the magnitude and variation of water torque of the guide vane of the pump turbine under turbine conditions, a pump turbine model of a pumped storage power station in China was used to process the movable guide vane shaft based on electrical stress analysis method, and the water torque tests of synchronous guide vane and asynchronous guide vane were conducted respectively. Analysis of the test results shows that: when the asynchronous guide vane is not used, the change of the guide vane water moment factor of all the guide vanes tested keeps consistent with the increase of the guide vane opening, and the direction of the water moment gradually turns from the guide vane closing direction to the guide vane opening direction; After setting 10 # guide vane as asynchronous guide vane, when the difference between the opening of asynchronous guide vane and the opening of synchronous guide vane is less than 16.4%, the water torque factor of the measured guide vane tends to be evenly distributed. when the difference is greater than 16.4%, the water torque increases sharply with the increase of the opening value, and the water torque factor of different guide vanes differs greatly.
Full Text:
PDFReferences
Mei Zuyan. Pumped storage power generation technology [M]. Beijing: Mechanical Industry Press, 2000.Cao Kun, Yao Zhimin. Hydraulic turbine principle and hydraulic design [M]. Beijing: Tsinghua University Publishing House, 1991.
Cao Shuliang, Xu Guo, Wu Yulin, et al. Calculation of three-dimensional solid-liquid two-phase turbulence and wear prediction in movable guide vane of hydraulic turbine [J]. Journal of Engineering Thermophysics, 1999,20 (5): 584-588.
Li Qifei. Study on internal flow characteristics of water diversion and guide components of turbine based on two-phase flow [D]. Lanzhou: Lanzhou University of Technology, 2006.
Luo Xing Kun, Guo Pengcheng, Zhu Guojun, et al. Multi-objective Optimization Design of Hydraulic Turbine Movable Guide Vane Based on NSGA-II Algorithm [J]. Journal of Irrigation and Drainage Mechanical Engineering, 2010,28 (5): 369-373.
Li Rennian, Liu Dianxing, Dong Zhiqiang, et al. Numerical simulation of "S" full flow passage of pump turbine [J]. Journal of Irrigation and Drainage Machinery Engineering, 2013,31 (5): 401-405.
Guo Tao, Zhang Lixiang. Study on Turbulent Characteristics and Vane Vortex Structure in Guide Mechanism of Francis Turbine with Small Opening [J]. Engineering Mechanics, 2015,32（6）：222-206 .
Huang Jianfeng, Zhang Lixiang, Wang Wenquan, et al. Numerical Simulation of Turbulent Flow Field in Movable Guide Vane Channel Based on Moving Grid [J]. Journal of Irrigation and Drainage Mechanical Engineering,2010，28（2）：140-143 .
Huang Jianfeng, Zhang Lixiang, Guo Yakun. Large Eddy Simulation of Dynamic Flow Around Regulating Movement of Hydraulic Turbine Movable Guide Vane [J]. Journal of Irrigation and Drainage Mechanical Engineering, 2013.31（8）：702-707 .
Wang Wenquan, Zhang Lixiang, Yan Yan, et al. Large Eddy Simulation of Turbulent Flow Field in Turbine Blade Runner Vortex [J]. Thermal Power Engineering, 2009,24 (2). 257-270 .
Ji Xingying, Lai Xu, Chen Ling, et al. Calculation of hydraulic moment of guide vane of tubular turbine [J]. Journal of Hydraulic Engineering, 2011,42 (7): 869-875.
Li Rennian, Tan Haiyan, Li Qifei, et al. Pressure Fluctuation Analysis of Pump Turbine under Low Water Head [J]. Journal of Hydroelectric Power Generation, 2015,34 (8). 85-90 .
Li Rennian, Tan Haiyan, Li Qifei, et al. Analysis of regional pulsation characteristics of pump turbine runner [J]. Journal of Irrigation and Drainage Machinery Engineering, 2015,33 (12).1138-1143 .
BOTERO F ，HASMATUCHI V，ROTH S，et al . Non-instructive detection of rotating stall in pump-turbines［J］.
Mechanical Systems and Signal Processing，2014，48（1/2）：162-173 .
Liu Jintao, Li Yong, Hu Qi, et al. Flow Analysis in Vaneless Zone of Pump Turbine Based on Turbulent Kinetic Energy [J]. Journal of Engineering Thermophysics, 2015,36 (9).1933-1936 .
HASMATUCHI V，FARHAT M，ROTH S，et al . Experimental evidence of rotating stall in a pump-turbine at off-design conditions in generating mode［J］. Journal of Fluids Engineering，2011，133（5）：623-635 .
DEVALS C，VU T C，GUIBAULT F， CFD analysis for aligned and misaligned guide vane torque prediction and validation with experimental data［J］. International Journal of Fluid Machinery and Systems，2015，8（3）：132- 141 .
Refbacks
- There are currently no refbacks.
