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| Simulation on performance of a centrifugal pump during rapid startup period |
| WU Shaoke1*, ZHANG Yuewen2, ZHANG Peng2 |
| 1.Water Transport Planning and Design Co, . Ltd., China Communications Construction Company Limited, Beijing 100007, China; 2.College of Marine Engineering, Dalian Maritime University, Dalian, Liaoning 116026, China |
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Abstract To further research instantaneous characteristics in the centrifugal pump during the startup period, first, the results simulated by the software Flowmaster and the experimental results were compared, and then the situation that pump started up by different ways was simulated and analyzed. It showed that star-delta starting was in favour of the pump compared to the direct-starting. Based on this, Flowmaster was used to simulate the instantaneous starting speed, flow rate, power and outlet pressure of the centrifugal pump with the different valve openings. At last, the non-dimensional analysis was carried out. The results show that the star-delta starting belongs to the slow-start and is better than the direct-starting. In the start-up process of the centrifugal pump, flow rate characteristics are mainly determined by the motor starting characteristics and rise slowly at the beginning. The time that the flow rate reaches the stablility from zero laggs far behind the time that the rotating speed does. The dimensionless coefficient varie all the time and it can not be inconsistent with the quasi-steady state assumption.
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Received: 24 May 2016
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[1]刘超. 离心泵振动故障分析及排查措施[J]. 化工设备与管道, 2016, 53(4):64-65.
LIU Chao. Analysis of fault due to vibration occurred in centrifugal pump and troubleshooting measures[J]. Process equipment & piping, 2016, 53(4):64-65.(in Chinese)
[2]郭建,邱澄宇.离心泵和管路效率分析[J].集美大学学报,2004,9(3):250-254.
GUO Jian,QIU Chengyu. Analysis on efficiency of centrifugal pump and pipeline [J]. Journal of Jimei University,2004,9(3): 250-254.(in Chinese)
[3]LEFEBVRE P J,BARKER W P. Centrifugal pump performance during instantaneous operation [J].Journal of fluids engineering,1995, 117(2): 123-128.
[4]TSUKAMOTO H. OHASHI H. Transient, characteristics of a centrifugal pump during startup period [J]. ASME journal of fluids engineering,1982,104(1): 6-13.
[5]TSUKAMOTO H,MATSUNAGA S, YONEDA H, et al. Transient characteristics of a centrifugal pump during stopping period [J]. ASME journal of fluids enginee-ring,1986, 108(4): 392-399
[6]杨从新,杨斌.离心泵在启动阶段的瞬态三维数值模拟[J].排灌机械工程学报,2010, 28(2): 122-126.
YANG Congxin,YANG Bin. Centrifugal pump in the startup stage of three dimensional transient numerical simulation [J]. Journal of drainage and irrigation machinery engineering,2010,28(2): 122-126.(in Chinese)
[7]胡征宇,吴大转,王乐勤.离心泵快速启动过程的瞬态水力特性外特性研究[J].浙江大学学报(工学版),2005,39(5): 605-608.
HU Zhengyu, WU Dazhuan, WANG Leqin. Transient hydraulic characteristics of centrifugal pump during rapid start up process [J]. Journal of Zhejiang University(engineering science),2005,39(5): 605-608.(in Chinese)
[8]吴大转,王乐勤,胡征宇.离心泵快速启动过程外部特性的实验研究[J].工程热物理学报,2006,27(1): 68-70.
WU Dazhuan,WANG Leqin, HU Zhengyu. Experimental study on the external characteristics of centrifugal pump during rapid starting [J]. Journal of engineering thermal physics, 2006, 27(1): 68-70.(in Chinese)
[9]吴大转,王乐勤,胡征宇.离心泵快速启动过程瞬态水力特性的数值模拟[J].浙江大学学报(工学版),2005,39(9): 1427-1430, 1454.
WU Dazhuan, WANG Leqin, HU Zhengyu. Numerical simulation of transient hydraulic characteristics of centrifugal pump during quick start process [J]. Journal of Zhejiang University(engineering science),2005,39(9): 1427-1430,1454.(in Chinese)
[10]王乐勤,吴大转.混流泵管路负载快速变化过程瞬态特性的实验研究[J].通用机械, 2003(2): 65-68.
WANG Leqin,WU Dazhuan. Experimental study on transient characteristics of a mixed flow pump with rapid load change process [J]. General machinery,2003(2): 65-68.(in Chinese)
[11]吴大转,徐斌杰,李志锋.离心泵瞬态操作条件下内部流动的数值模拟[J].工程热物理学报,2009,30(2): 781-783.
WU Dazhuan, XU Binjie, LI Zhifeng. Numerical simulation of internal flow in a centrifugal pump under transie-nt operating conditions [J]. Journal of engineering thermo physics, 2009,30(2): 781-783.(in Chinese)
[12]LI Z F,WU D Z, WANG L Q, et al. Numerical simulation of the transient flow in a centrifugal pump during starting period[J]. Journal of fluid engineering, 2010,132(8):1-8.
[13]王福军,白绵绵,肖若富. Flowmaster在泵站过渡过程分析中的应用[J]. 排灌机械工程学报,2010,28(2): 144-148.
WANG Fujun,BAI Mianmian, XIAO Ruofu. Flowmaster in pump transition process analysis application [J].Drainage and irrigation machinery engineering journal, 2010,28(2): 144-148.(in Chinese)
[14]党德功,张天强,高清秀,等. 使用FLOWMASTER模拟和优化柴油机的供油系统[J]. 铁道机车车辆,2003,23(1): 116-120.
DANG Degong, ZHANG Tianqiang,GAO Qingxiu, et al. Using Flowmaster simulation and optimization of diesel engine fuel supply system [J]. Railway vehicle, 2003,23(1): 116-120.(in Chinese)
[17]张玉良,朱祖超,崔宝玲. 离心泵快速启动过程的实验研究[J].工程热物理学报, 2013,34(11): 56-60.
ZHANG Yuliang, ZHU Zuchao, CUI Baoling. Experimental study on the rapid start up process of centrifugal pumps [J]. Journal of engineering and engineering,2013,34(11): 56-60.(in Chinese)
[18]吴小平,把多铎,胡沙沙, 等. 基于MATLAB离心泵特性曲线的拟合与绘制[J].中国农村水利水电,2010(11): 144-146.
WU Xiaoping,BA Duoduo, HU Shasha, et al. Centrifugal pump characteristic curve fitting and mapping based on MATLAB[J]. China rural water and hydropower, 2010(11):144-146.(in Chinese) |
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