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  2016, Vol. 34 Issue (4): 301-306    DOI: 10.3969/j.issn.1674-8530.15.0097
Current Issue | Next Issue | Archive | Adv Search Previous Articles  |  Next Articles  
Effects of impeller diameter on pressure pulsation in a double- channel sewage pump under partial conditions
DING Rong, TAN Minggao, LIU Houlin, ZHANG Jing, HE Naichang
National Research Center of Pumps, Jiangsu University, Zhenjiang, Jiangsu 212013, China
 Download: PDF (1990 KB)   HTML (1 KB)   Export: BibTeX | EndNote (RIS)      Supporting Info
Abstract In order to analyze the influence of D2(101, 103 and 105mm)on pressure pulsation under partial conditions, the unsteady solid-liquid two-phase flow of the double-channel sewage pump was numerically simulated by using the Mixture multiphase flow model, and the results were verified perfectly by experiment.The partial condition mainly includes small flow rate of 0.6Qd and large flow rate of 1.2Qd. The results showed that the pressure pulsation of volute circumference under 0.6Qd generally increased with the increase of D2, and the maximum increase reached 53.2% when the impeller dia-meter increases from 103 mm to 105 mm, while except points VP3, VP6 and VP7, the pressure pulsation of volute circumference under 1.2Qd increased slightly with the increase of D2.The pressure pulsation of volute circumference varies severely with angle change under 0.6Qd and 1.2Qd.The smaller impeller diameter is contributed to reduce the pressure pulsation in the pump under 0.6Qd and 1.2Qd. Instantaneous static pressure of each monitoring point around the tongue in all solid-liquid two-phase flow conditions fluctuates sharply when D2 is 105 mm. For each monitoring point near the tongue under the solid-liquid two-phase flow, the dominant frequency of pressure pulsation under 0.6Qd usually is of the low frequency, while the dominant frequency under 1.2Qd is of the blade passing frequency, the pressure pulsation maximum amplitude of these points basically increased with the increase of D2 under 1.2Qd. The research results provide the basis for the optimization design of double-channel sewage pump.
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
DING Rong
TAN Ming-Gao
LIU Hou-Lin
ZHANG Jing
HE Nai-Chang
Key wordsdouble-channel sewage pump   partial condition   impeller diameter   pressure pulsation   solid-liquid two-phase flow   blade passing frequency     
Received: 2015-05-06;
Cite this article:   
DING Rong,TAN Ming-Gao,LIU Hou-Lin et al. Effects of impeller diameter on pressure pulsation in a double- channel sewage pump under partial conditions[J]. Journal of Drainage and Irrigation Machinery Engin, 2016, 34(4): 301-306.
 
[1] BYSKOV R K,JACOBSEN C B,PEDERSEN N. Flow in a centrifugal pump impeller at design and off-design conditions-part II: large eddy simulations[J].Journal of fluids engineering,2003,125(1):73-83.
[2] PEI J, DOHMEN H J, YUAN S Q, et al. Investigation of unsteady flow-induced impeller oscillations of a single-blade pump under off-design conditions[J]. Journal of fluids and structures, 2012, 35:89-104.
[3] GONZÁLEZ J,PARRONDO J,SANTOLARIA C,et al.Steady and unsteady radial forces for a centrifugal pump with impeller to tongue gap variation[J].Journal of flui-ds engineering,2006,128(3): 454-462.
[4] SOLIS M, BAKIR F, KHELLADI S.Pressure fluctuations reduction in centrifugal pumps: influence of impeller geometry and radial gap[C]//Proceedings of Fluids Engineering Division Summer Meeting. New York: American Society of Mechanical Engineers, 2009: 253-265.
[5] BARRIO R, PARRONDO J, BLANCO E. Numerical analysis of the unsteady flow in the near-tongue region in a volute-type centrifugal pump for different operating points[J]. Computers & fluids, 2010, 39(5): 859-870.
[6] 施卫东,徐焰栋,李伟,等.蜗壳隔舌安放角对离心泵内部非定常流场的影响[J].农业机械学报,2013,44(z1):125-130.
SHI Weidong,XU Yandong,LI Wei, et al.Effect of different tongue angels on unsteady flow in centrifugal pump[J]. Transactions of the CSAM,2013,44(z1):125-130.(in Chinese)
[7] 张金凤,王文杰,方玉建,等.分流叶片离心泵非定常流动及动力学特性分析[J].振动与冲击,2014,33(23):37-41.
ZHANG Jinfeng,WANG Wenjie,FANG Yujian,et al.Influence of splitter blades on unsteady flow and structural dynamic characteristics of a molten salt centrifugal pump[J].Journal of vibration and shock,2014,33(23):37-41.(in Chinese)
[8] ZHANG N,YANG M,GAO B,et al.Unsteady pressure pulsation and rotating stall characteristics in a centrifugal pump with slope volute[J]. Advances in mechanical engineering,2014,2014:1-11.
[9] 蒋跃,李红,刘宜.单,双出口双蜗壳泵的压力脉动及径向力特性[J].排灌机械工程学报,2014,32(9):748-753. 浏览
JIANG Yue,LI Hong,LIU Yi. Pressure fluctuation and radial thrust characteristics in double volute pumps with single and double outlet[J].Journal of drainage and irrigation machinery engineering,2014,32(9):748-753.(in Chinese)
[10] 杨敏官,张宁,李忠,等.基于CFD的离心泵侧壁式压水室优化设计[J].江苏大学学报(自然科学版),2013,34(1):28-32.
YANG Minguan,ZHANG Ning,LI Zhong,et al. Optimal design of centrifugal pump with tilt volutebased on CFD [J].Journal of Jiangsu University(natural science edition), 2013,34(1): 28-32.(in Chinese)
[11] 吴登昊, 袁寿其, 任芸, 等. 管道泵压力脉动及振动的研究[J]. 华中科技大学学报(自然科学版), 2013,41(4):16-20.
WU Denghao,YUAN Shouqi,REN Yun,et al.Pressure pulsation and vibration in in-line circulator pumps[J].Journal of Huazhong University of Science and Technology(natural science edition), 2013,41(4):16-20.(in Chinese)
[12] Guelich J,Bolleter U.Pressure pulsations in centrifugal pumps[J].Journal of vibration and acoustics,1992,114(2):272-279.
[1] WANG Jiabin, CHEN Jia, YUAN Shouqi, PEI Ji, MENG Fan. Pressure fluctuation near double volute tongue for double-suction centrifugal pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2016, 34(4): 283-288.
[2] JIANG Linglin, LIU Houlin, WANG Kai, SHAO Chang. Effects of radial diffuser outlet pattern on pulsation of sprayer pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2016, 34(4): 289-293.
[3] LI Qifei, TAN Haiyan, LI Rennian, JIANG Lei, LYU Wenjuan. Influence of abnormally low head on pressure fluctuation of pump turbine[J]. Journal of Drainage and Irrigation Machinery Engin, 2016, 34(2): 99-104.
[4] HUANG Jianfeng, ZHANG Lixiang, YAO Ji, LONG Liyan. Numerical simulation of two-phase turbulent flow in Francis turbine passage on sediment erosion[J]. Journal of Drainage and Irrigation Machinery Engin, 2016, 34(2): 128-133.
[5] XU Yuanhui, ZHANG Qihua, SHI Weidong, LU Weigang, WANG Chuan, ZHOU Ling. Design of new type diffuser of plastic well pump and pulsation characteristics of internal pressure[J]. Journal of Drainage and Irrigation Machinery Engin, 2016, 34(1): 18-25.
[6] MA Xinhua, FENG Qi, JIANG Xiaoping, WANG Wei, HE Yongguan. Numerical simulation of unsteady pressure pulsation in multistage centrifugal pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2016, 34(1): 26-31.
[7] Liu Ruihua, Li Guidong, Wang Yang. Internal flow numerical simulation of centrifugal pump under gas-liquid two-phase flow[J]. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(8): 661-666.
[8] Li Rennian,, Hu Penglin, Li Yibin,, Bi Zhen, Zhou Dong. Numerical analysis of effect of blade tip clearance on pressure fluctuation in mixed-flow pump inlet[J]. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(7): 560-565.
[9] Yuan Jianping, Sun Wenting, Wang Longyan, Fu Yanxia, Hong Feng, Zhou Banglun. Numerical simulation of unsteady blood flows in Bi-ventricular Assist Device[J]. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(7): 553-559.
[10] Kang Can, Yang Xin, Yu Xiaojie. Inter-stage interaction and unsteady flow characteristics in multistage centrifugal pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(7): 566-571.
[11] Wang Yang, Peng Shuai, Liu Ruihua, Liu Yang. Numerical simulation of pressure fluctuation in self-priming vortex pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(7): 583-588.
[12] Chen Huilong, Fu Jie, Li Shulin, Zhao Binjuan, Zou Qiang, Liu Jinfeng. Pressure fluctuation characteristic of mechanical face sealing clearance of spiral groove in upstream pumping[J]. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(6): 504-509.
[13] Ye Xiaoyan, Feng Yaoning, Wang Jing, Zhang Desheng, Hu Jingning. Test and analysis of water-lubricated bearing of seawater desalination pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(6): 510-515.
[14] Dong Xinghua, Guo Yanlei, Bi Zhen, Li Yibin, Cheng Xiaorui. Internal and external characteristics of axial-flow pump based on coupling CFX with Workbench[J]. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(6): 488-493.
[15] Yuan Jianping, Zhu Yuwen, Zhou Banglun, Xia Shuijing, Shen Chendong. Pressure fluctuation in residual heat removal pumps[J]. Journal of Drainage and Irrigation Machinery Engin, 2015, 33(6): 475-480.

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