Influence of diffuser radial position of guide vane on submersible well pump performance
CHENG Xiaorui1,2, ZHANG Xuelian1*, LYU Boru1, LIU He1
1. College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou, Gansu 730050, China; 2. Key Laboratory of Fluid machinery and Systems, Gansu Province, Lanzhou, Gansu 730050, China
Abstract:In order to study the influence of radial position of guide vane on the performance of submersible well pump, nine configurations of guide vane were designed by changing the radial position of spatial guide vane under a certain condition of other parameters, aiming at the 250QJ125 of submersible well pump. Based on the Reynolds-averaged N-S equation, the RNG k-ε model and the SIMPLE algorithm, the three-dimensional numerical calculation of the full runner was carried out for the internal flow of the guide vane of submersible well pump in different radial positions. Through analysing the calculation results, the performance parameters of the submersible pump are obtained under different guide vane programs. At the same time, the loss of guide vane and the variation rule of cross section area as well as the turbulent kinetic energy and static pressure distribution inside the guide vane are compared. The results show that the radial position of the guide vane has a significant influence on the performance of the submersible well pump. When the radial distance of the guide vane is increased to an appropriate position, the internal loss of the guide vane is small, and the energy conversion capabi-lity is excellent. In addition, the fluctuation of the turbulent kinetic energy inside the guide vane is weakened, and the flow loss is greatly reduced, so as to improve the efficiency of pump. However, the variation rule on the cross section area of guide vanes is obviously different, and the degree of turbulent kinetic energy fluctuation aggravates when the radial distance is exaggerated. Therefore, the flow loss of guide vanes increases and the performance of pump drops.
程效锐,,张雪莲*,吕博儒,刘贺. 导叶径向位置对井用潜水泵性能的影响[J]. 排灌机械工程学报, 2019, 37(10): 848-854.
CHENG Xiaorui,, ZHANG Xuelian*, LYU Boru, LIU He. Influence of diffuser radial position of guide vane on submersible well pump performance. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(10): 848-854.
[1]袁丹青, 石荣, 韩泳涛, 等. 深井离心泵新型空间导叶设计及优化[J]. 江苏大学学报(自然科学版), 2015, 36(6): 661-665. YUAN Danqing,SHI Rong,HAN Yongtao,et al. Design and optimization of new-type space guide vanes for deep-well centrifugal pump[J]. Journal of Jiangsu University(natural science edition),2015,36(6):661-665.(in Chinese)[2]杨敏官, 李辉, 高波, 等. 离心泵内流场计算及空间导叶内流动分析[J]. 流体机械, 2008, 36(7): 16-19. YANG Minguan,LI Hui,GAO Bo,et al.Numerical calculation of turbulent flow in a centrifugal pump and flow field analysis to vaned diffuser[J].Fluid machinery,2008,36(7):16-19.(in Chinese)[3]关醒凡. 现代泵理论与设计[M]. 北京: 中国宇航局出版社, 2011:339-340.[4]ZHOU Ling, SHI Weidong, LU Weigang, et al. Numeri-cal investigations and performance experiments of a deep-well centrifugal pump with different diffusers[J]. ASME Journal of fluids engineering,2012,134(7):0711002.[5]魏清顺,孙西欢,刘在伦.导流器几何参数对潜水泵性能影响的通径分析[J].排灌机械工程学报,2014,32(3):202-207. WEI Qingshun, SUN Xihuan, LIU Zailun. Path analysis of effects of diffuser geometric parameters onperformance of submersible pump[J]. Journal of drainage and irrigation machinery engineering,2014,32(3):202-207.(in Chinese)[6]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. Opti-mal design of submersible multistage pumps with low specific speed[J]. Transactions of the CSAE, 2012, 28(8): 122-127.(in Chinese)[7]曹树良, 谭磊, 桂绍波. 离心泵前置导叶设计与试验[J]. 农业机械学报, 2010, 41(S1): 1-5. CAO Shuliang,TAN Lei,GUI Shaobo. Design and experi-ment of inlet guide vane for centrifugal pump[J]. Transactions of the CSAM,2010,41(S1):1-5.(in Chinese)[8]张启华,徐燕,施卫东,等. 多级离心泵圆周弯扭式导叶设计及性能试验[J]. 农业工程学报, 2013, 29(5): 37-43. ZHANG Qihua,XU Yan,SHI Weidong,et al. Design and performance test of circumferential crankle guide vane of multistage centrifugal pumps[J]. Transactions of the CSAE,2013,29(5):37-43.(in Chinese)[9]崔宝玲, 孟嘉嘉, 贾晓奇. 基于CFD技术的多级潜水泵优化设计[J]. 农业机械学报,2012,43(11):142-146. CUI Baoling,MENG Jiajia,JIA Xiaoqi. Optimization design of multi-stage submersible pump based on CFD [J]. Transactions of the CSAM,2012,43(11):142-146.(in Chinese)[10]邴浩, 谭磊, 曹树良. 叶片数及叶片厚度对混流泵性能的影响[J]. 水力发电学报, 2013, 32(6): 250-255. BING Hao,TAN Lei,CAO Shuliang. Effects of blade number and thickness on performance of mixed-flow pumps [J]. Journal of hydroelectric engineering,2013,32(6):250-255.(in Chinese)[11]周岭, 杨阳, 施卫东, 等. 导叶出口边位置对深井离心泵性能的影响[J]. 排灌机械工程学报, 2016, 34(12): 1028-1034. ZHOU Ling,YANG Yang,SHI Weidong,et al. Influence of outlet edge position of diffuser vane on performance of deep-well centrifugal pump[J].Journal of drainage and irrigation machinery engineering,2016,34(12):1028-1034.(in Chinese)[12]顾延东,袁寿其,裴吉,等.导叶安装位置对混流泵压力脉动特性的影响[J].排灌机械工程学报,2017,35(2):93-99. GU Yandong, YUAN Shouqi, PEI Ji, et al. Effects of diffuser installation position on pressure fluctuation in mixed flow pump[J]. Journal of drainage and irrigation machinery engineering, 2017,35(2): 93-99.( in Chinese)[13]程效锐,贾程莉,杨从新,等.导叶周向布置位置对核主泵压力脉动的影响[J].机械工程学报,2016,52(16):197-204. CHENG Xiaorui, JIA Chengli, YANG Congxin, et al. Influence of circumferential position of guide vane on unsteady flow characteristics in reactor coolant pump[J]. Journal of machanical engineering, 2016,52(16):197-204.(in Chinese)[14]谭东杰, 戈志鹏, 董亮, 等. 中开式输油泵导叶叶轮匹配特性研究[J]. 流体机械, 2018, 46(12):47-52. TAN Dongjie,GE Zhipeng,DONG Liang,et al. Study on matching characteristics between diffuser and impeller of split-case oil pump[J]. Fluid machinery, 2018, 46(12):47-52.( in Chinese)[15]马希金, 崔生磊, 周贯五,等. 基于CFD的多相泵复合导叶优化设计[J]. 流体机械, 2019,47(2):45-50. MA Xijin,CUI Shenglei,ZHOU Guanwu,et al. Optimization design of compound immobile impeller of multiphase pump based on CFD method[J]. Fluid machinery,2019,47(2):45-50.