Abstract:In order to suppress the secondary flow and axial vortex to improve the performance of the molten salt pump. A splitter space guide vane was raised.Using k-ε model and SIMPLE on simulation of the model molten salt pump with two forms of space guide vane.Then acquire the performance of two forms of molten salt pump and the interior velocity and pressure flow. The results show that at 0.8Q and 1.0Q flow,the distribution of the velocity in the splitter space guide vane is more even,the secondary flow and vortex near the suction side of guide vane reduced.As a result,the efficiency of the model pump is improved.At the 1.2Q flow,the splitter guide vane result in the low efficiency.But the distribution of velocity at the outlet of the space guide vane is even and the area of the low velocity decreased.The amplitude of the pressure fluctuation in the splitter space guide vane is determined by the blade frequency.The pressure fluctuation near the outlet is improved.At the design operating condition,the amplitude of the pressure fluctuation is lower 40% than the regular space guide vane.The pressure fluctuation near the flange is higher than hub.At the flange side of the vane,the pressure fluctuation on the pressure side is lower than suction side.The pressure fluctuation is similar on the hub of space guide vane.
杨敏官, 邵腾, 高波, 李忠, 王达. 熔盐泵分流式空间导叶内部流动及其非定常特性[J]. 排灌机械工程学报, 2015, 33(4): 306-310.
Yang Minguan, Shao Teng, Gao Bo, Li Zhong, Wang Da. Interior flow and unsteady performance of molten salt pump with splitter space guide vane. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(4): 306-310.
[1]赵秋霞. 导流壳几何参数选取及其对泵性能的影响[J].太原理工大学学报,2001,33(4):414-416. Zhao Qiuxia. Geometry parameter selecting of diversion shell and the effect on pump function[J].Journal of Taiyuan University of Technology, 2001,33(4):414-416.(in Chinese)[2]Hiromu Tsurusaki. Unsteady flows arising in a mixed-flow vaneless diffuser system[J]. International Journal of Fluid Machinery and Systems,2008,(1):92-100.[3]朱荣生,胡自强,杨爱玲. 双叶片泵内非定常流动的数值模拟[J].排灌机械工程学报,2011,29(1):26-30. Zhu Rongsheng,Hu Ziqiang,Yang Ailing.Numerical simulation of unsteady flow in double-blade pump[J].Journal of Drainage and Irrigation Machinery Enginee-ring, 2011,29(1):26-30.(in Chinese)[4]朱荣生,燕浩,付强,等. 贯流泵内部压力脉动特性的数值计算[J].水力发电学报,2012,31(1):220-225. Zhu Rongsheng,Yan Hao,Fu Qiang,et al.Numerical calculation of characteristics of tubular pump internal pressure pulsation[J].Journal of Hydroelectric Engineering, 2012,31(1):220-225.(in Chinese)[5]Takeshi Sano,Yoshiki Yoshida. Numerical study of rotating stall in a pump vaned diffuser[J].Journal of Fluids Engineering,2002,124:363-370.[6]魏清顺,刘在伦. 导流器叶片进口安放角对潜水泵性能的影响[J].中国电机工程学报,2012,32(14):109-115. Wei Qingshun,Liu Zailun.Effect of inlet setting angles of space guide vanes on submersible pump performances[J].Proceedings of the CSEE, 2012,32(14):109-115.(in Chinese)[7]司乔瑞,袁寿其,王川,等.低比速多级潜水泵优化设计[J].农业工程学报,2012,28(8):122-127. Si Qiaorui,Yuan Shouqi, Wang Chuan,et al.Optimal design of submersible multistage pumps with low specific speed[J].Transactions of the CSAE, 2012,28(8):122-127.(in Chinese)[8]杨从新,杜媛英,黎义斌,等,导叶参数对混流泵水阻系数及效率的影响[J].排灌机械工程学报,2012,30(5):538-541. Yang Congxin,Du Yuangying,Li Yibin,et al.Effects of guide vanes parameter on water resistance coefficient and efficiency of mixed-flow pump[J]. Journal of Drainage and Irrigation Machinery Engineering, 2012,30(5):538-541.(in Chinese)[9]一种具有吸力面副叶片的空间导叶体:中国,ZL201310002529.2[P].2013-01-04.[10]王福军.计算流体动力学分析——CFD软件原理与应用[M].北京:清华大学出版社,2004:7-11.