排灌机械工程学报
   Home  About Journal  Editorial Board  Author Center  Subscriptions    中文 
Journal of Drainage and Irrigation Machinery Engin  2019, Vol. 37 Issue (7): 574-579    DOI: 10.3969/j.issn.1674-8530.17.0081
article Current Issue | Next Issue | Archive | Adv Search Previous Articles  |  Next Articles  
Improved centrifugal pump impeller design in terms of blade wrap and exit angles
WANG Yanyan1,2, ZHAO Weiguo1,2*, HAN Xiangdong1,2, ZHENG Yingjie1,2
1. School 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
 Download: PDF (10391 KB)   HTML (1 KB)   Export: BibTeX | EndNote (RIS)      Supporting Info
Abstract Based on computational fluid dynamics(CFD)technology, numerical simulation of flow field in the whole centrifugal pump of KQW250-400 type was performed. At first, the original impeller blade design was altered according to blade design theory, and five impeller models were built by changing the blade wrap angle Φ and the blade exit angle β2. Then, the corresponding hydraulic perfor-mance curves and internal flow fields of the pumps with these different impeller models were obtained numerically. The results indicate that the impeller with blade wrap angle Φ=126° and exit angle β2 = 24° is the optimal and with the best performance, i.e. at the design flow rate Qd=550 m3/h, the calculated head and efficiency are 53.49 m and 87.66%, respectively. Based on the experimental data, the centrifugal pump with the original impeller is subject to a 49.10 m head and a 79.88% efficiency at the flow rate Q=551.381 m3/h in comparison with 51.84 m head and 85.65% efficiency at the flow rate Q=550.823 m3/h for the pump with the optimized impeller. As such the head and efficiency have increased by 2.74 m and 5.77%, respectively, under the design condition; especially, the efficiency curve with the optimized impeller of the centrifugal pump is all above the curve with the original impeller. This suggests that the overall performance of the centrifugal pump has been improved. This outcome is conducive to improving the economic benefits of pump utilization in buildings and subsequently reducing energy consumption.
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
WANG Yan-Yan-
ZHAO Wei-Guo-
*
HAN Xiang-Dong-
ZHENG Ying-Jie-
Key wordscentrifugal pump   impeller   improved design   numerical simulation   performance test     
Received: 2017-04-17;
Cite this article:   
WANG Yan-Yan-,,ZHAO Wei-Guo- et al. Improved centrifugal pump impeller design in terms of blade wrap and exit angles[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(7): 574-579.
 
[1] 杨乐乐. 离心泵参数化设计与内部流场仿真研究[D]. 秦皇岛: 燕山大学, 2017.
[2] 陈冰. 螺旋离心泵的叶片变螺距设计及数值模拟[D]. 兰州: 兰州理工大学, 2008.
[3] MINEMURA K, TOMOMI U. Three dimension calcula-tion of air water two-phase flow in centrifugal pump impeller based on a bubbly flow model with fixed cavity[J]. JSME international journal series B,1994, 37(4):726-735.
[4] 杨华, 谷传刚, 汤方平, 等.基于CFD紊流计算的离心泵叶型优化设计[J]. 扬州大学学报(自然科学版), 2007, 10(3): 41-44.
[5] MINEMURA K, TOMOMI U. Prediction of air-water two-phase flow performance of a centrifugal pump based on one-dimension two-fluid model[J]. Journal of fluids engineering, 1998,120(3): 327-334.
[6] 李清平. 螺旋轴流式多相泵设计初探及其内部气液两相流动的三维数值分析[D]. 北京: 中国石油大学, 1998.
[7] WU Yulin. Three-dimension calculation of oil-bubble flows through a centrifugal Pump impeller[C]//Proceedings of the Third International Conference on Pump and Fan. Beijing:Tsinghua University Press, 1998: 526-532.
[8] 班耀涛, 赵宏. 螺旋轴流式油气多相泵的性能预测模型[J]. 工程热物理学报, 2000, 21(2): 187-190.
[9] YANG Hua, GU Chuangang, TANG Fangping, et al. Blade profile optimization for centrifugal pump based on turbulence numerical simulation[J]. Journal of Yang-zhou University(natural science edition),2007,10(3): 41-44.(in Chinese)
[10] 孙建平, 张克危, 刘龙珍. 离心泵叶片形状的优化[J]. 华中理工大学学报, 1997, 25(2): 61-63.
[11] BAN Yaotao, ZHAO Hong. Performance prediction model of helico-axial multiphase pump[J]. Journal of engineering thermophysics, 2000, 21(2): 187-190.(in Chinese)
[12] SUN Jianping, ZHANG Kewei, LIU Longzhen. Optimization of the blade profile of centrifugal pumps[J]. Journal of Huazhong University of Science and Technology, 1997,25(2): 91-63.(in Chinese)
[13] 谢红太,党小刚. 基于Inventor的多次曲线创建及其在叶片泵设计中的应用[J]. 山东理工大学学报(自然科学版),2018,32(2):70-73.
[14] 黄思, 吴玉林. 叶片式泵内气液两相泡状流的三维数值计算[J]. 水利学报, 2001(6): 57-61.
[15] XIE Hongtai, DANG Xiaogang. Research on the method of creating multiple curves using Inventor and its application in the manufacture of vane pump[J]. Journal of Shandong University of Technology(natural science edition), 2018, 32(2): 70-73.(in Chinese)
[16] 赵伟国,盛建萍,杨军虎,等.基于CFD的离心泵优化设计与试验[J].农业工程学报,2015,31(21):125-131.
[17] HUANG Si, WU Yulin. 3-D calculation of gas-oil flow in rotodynamic pump based on a bubbly flow model[J]. Journal of hydraulic engineering, 2001(6): 57-61.(in Chinese)
[18] 余志毅,曹树良,王国玉.叶片泵内气液两相流的三维流动数值模型[J].北京理工大学学报,2007,27(12):1057-1060,1064.
[19] ZHAO Weiguo, SHENG Jianping, YANG Junhu, et al. Optimization design and experiment of centrifugal pump based on CFD[J]. Transactions of the CSAE, 2015, 31(21): 125-131.(in Chinese)
[20] 关醒凡.现代泵设计手册[M]. 北京:中国宇航出版社,2011.
[21] 杨军虎, 边中, 钟春林, 等. 基于水力损失计算的离心泵叶轮叶片出口安放角选择方法[J]. 西华大学学报(自然科学版), 2016, 35(3): 89-92,112.
[22] YU Zhiyi, CAO Shuliang, WANG Guoyu. A numerical model for 3-D gas-liquid two-phase flow in vane pumps[J]. Transactions of Beijing Institute of Technology, 2007,27(12):1057-1060,1064.(in Chinese)
[23] 李雪琴,玉君,赵鹏,等.多相混输泵内气液两相分布的随机分形模型[J].广西大学学报(自然科学版),2010,35(5):756-761.
[24] YANG Junhu, BIAN Zhong, ZHONG Cunlin, et al. Method for selecting centrifugal pump impeller outlet angle based on calculation of centrifugal pump impeller′s hydraulic loss[J]. Journal of Xihua University(natural sciences), 2016, 35(3): 89-92,112.(in Chinese)
[25] 张忆宁,曹卫东,姚凌钧,等.不同叶片出口角下离心泵压力脉动及径向力分析[J].流体机械,2017,45(11):34-40.
[26] LI Xueqin,YU Jun, ZHAO Peng, et al. A random fractal model of gas-liquid distribution in multiphase pump[J]. Journal of Guangxi University(natural science edition), 2010,35(5):756-761.(in Chinese)
[27] ZHANG Yining,CAO Weidong,YAO Lingjun,et al. Analysis on pressure fluctuation and radial thrust of centrifugal pump under different blade outlet angle[J]. Fluid machinery, 2017,45(11):34-40.(in Chinese)
[28] 张伟. 叶片泵非设计工况叶轮内部流动分析和预测[D].上海: 上海大学, 2010.
[29] 陈世杰,杨帆,黄辉,等.立式轴流泵装置叶片区压力脉动数值分析[J].流体机械,2019,47(2):17-22.
[30] CARIDAD J, KENYERY F. CFD analysis of electric submersible pumps(ESP)handling two-phase mixtures[J]. Journal of energy resources technology, 2004, 126(2):99-104.
[31] CHEN Shijie,YANG Fan,HHUANG Hui,et al. Numeri-cal analysis of pressure fluctuation of the blade region in vertical axial-flow pumping system[J]. Fluid machi-nery, 2019,47(2):17-22.(in Chinese)
[1] ZHANG Renhui,*, ZHANG Sidai, TIAN Lei, CHEN Xuebing. Performance and internal flow characteristics of jet centrifugal pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(9): 763-768.
[2] CHAI Liping, YU Jiafeng*, LI Yue , YAN Hao, CAO Linsong. Pressure pulsation characteristics in a series-parallel centrifugal pump with unequal blade pitch[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(9): 752-757.
[3] YU Song, GU Xiyao, LIU Yingyuan, YIN Junlian, WANG Dezhong*. Numerical simulation on pressure pulsation characteristic of nuclear coolant pump by different numerical methods[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(8): 645-649.
[4] YANG Yong-Fei-1, LI Wei-1*, SHI Wei-Dong-2, MA Xin-Hua-1, HE Yong-Guan-1, XU Rong-Jun-3. Modal analysis of super low-specific-speed self-balancing multistage centrifugal pump rotor[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(7): 593-599.
[5] XU Hailiang,*, ZHOU Yongxing, YANG Fangqiong,, WU Bo,. Analysis on influences of feeding flow rate on flow characteristics in deep-sea ore hydraulic transport equipment[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(7): 618-624.
[6] ZHAO Wanyong*,GUO Qiang,. Effects of blade leading edge position on hydraulic performances of centrifugal pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(7): 568-573.
[7] SHI Weidong ,*, HOU Yunhe , ZHOU Ling , LI Yuemin , XUE Shaohui . Numerical simulation and test of performance of deep-well centrifugal pumps with different stages[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(7): 562-567.
[8] LI Qiang*, LI Sen, YAN Hao, WANG Daoming, XIA Shengsheng. Influence of blade leading edge shape on performance of micro-high-speed centrifugal pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(7): 587-592.
[9] YUAN Jianping, DENG Fanjie, ZHANG Keyu, CUI Qianglei, SI Qiaorui*. Status of research in internal flow in impeller pumps under gas-liquid two-phase conditions[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(7): 553-561.
[10] PANG Qinglong, JIANG Xiaoping*, ZHU Jiawei, WU Guoqiao, WANG Xinwei, WANG Li. Influences of radial clearance between impeller and diffuser on flow field in side chambers of multistage centrifugal pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(7): 580-586.
[11] LIU Jianhe, LI Xingguang*, XU Yanming. Influence of needle-ring electrode configuration on induction charging spray[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(6): 521-527.
[12] CEN Chunhai, PAN Zhongyong*, WANG Xuebao. Numerical simulation of cavitation flow in whole flow path of water-jet propulsor[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(6): 528-533.
[13] ZHAO Weiguo,,PAN Xuwei,*,SONG Qice,,LI Shangsheng, . Effect of blade perforation near inlet edge on the cavitation performance of centrifugal pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(6): 461-468.
[14] YANG Sunsheng,SHAO Ke*,DAI Tao. Influence of blade wrap angle on characteristics of mixed flow pump as turbine[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(6): 475-479.
[15] YUE Shubo, ZHANG Hongqing*, DIAO Mingjun, DAI Shangyi. Numerical simulation of breast wall with pressure section of spillway sluice[J]. Journal of Drainage and Irrigation Machinery Engin, 2019, 37(6): 491-497.

Copyright © 2011 Journal of Drainage and Irrigation Machinery Engineering
Support by Beijing Magtech Co.Ltd   E-mail: support@magtech.com.cn