排灌机械工程学报
   首页  学报介绍  编 委 会  作者园地  征订启事  编校法规  编读往来  录用公告  广告合作   行业新闻  留  言  English 
排灌机械工程学报  2017, Vol. 35 Issue (12): 1024-1029    DOI: 10.3969/j.issn.1674-8530.16.1025
最新目录 | 下期目录 | 过刊浏览 | 高级检索 Previous Articles  |  Next Articles  
双流道泵内瞬态动力学特性
谈明高1, 廉益超1, 吴贤芳2, 丁荣1, 陈昆3
1.江苏大学国家水泵及系统技术研究中心, 江苏 镇江 212013; 2.江苏大学能源与动力工程学院, 江苏 镇江 212013; 3.宁波巨神制泵实业有限公司, 浙江 宁波 315135
Unsteady dynamics in double channel pump
Tan Minggao1, Lian Yichao1, Wu Xianfang2, Ding Rong1, Chen Kun3
1.Research Center of Pumps, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2.School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, China; 3. Ningbo Jushen Pumps Industry Co., Ltd., Ningbo, Zhejiang 315135, China
 全文: PDF (3141 KB)   HTML (1 KB)   输出: BibTeX | EndNote (RIS)      背景资料
摘要 为研究双流道泵输送固液两相流时瞬态动力学特性,基于Mixture多相流模型和拓展的标准k-ε湍流模型对泵内流进行了非定常数值计算,研究了隔舌附近间隙流道内压力脉动及外径对叶轮径向力的影响,并对D2=101,103,105 mm时能量性能进行了试验验证.研究结果表明,在清水及两相流设计工况下,间隙流道内各监测点处压力脉动主频均为叶频,且颗粒加入后各监测点处压力脉动强度均有不同程度减弱且最大减弱了25.86%.输送固液两相流时,D2=105 mm和D2=101 mm时设计工况和小流量下叶轮径向力的分布与变化具有一定的规律性,大流量工况时各D2下的规律均比较明显;随着流量的增大,叶轮径向力矢量中心均从蜗壳断面8向断面4移动,且不受D2的影响.
服务
把本文推荐给朋友
加入我的书架
加入引用管理器
E-mail Alert
RSS
作者相关文章
谈明高
廉益超
吴贤芳
丁荣
陈昆
关键词双流道污水泵   固液两相流   压力脉动   径向力     
Abstract: In order to research the unsteady dynamics in a double channel sewage pump as it transports the solid-liquid two-phase flow, the inner flow double channel sewage pump was numerically simulated by using the mixture multiphase flow model and the developed standard k-ε turbulence model. The pressure fluctuation in the gap flow channel and the impeller radial force under different impeller diameter D2, namely 101, 103 and 105 mm, were studied. The simulation results agree well with the experimental ones, which indicated that the numerical calculation methods can be used to predict the transient dynamics in this pump. The results showed that the dominant frequency of pressure pulsation at monitoring points in gap flow channel is the blade passing frequency before and after adding a moderate amount of particles. The pressure fluctuation intensity at each monitoring point was weakened with particle addition and the maximum reduction was 25.86%. When the pump transports the solid-liquid two-phase flow and the diameter is 105 mm or 101 mm, the distribution and change of impeller radial force are more regular under designed and operation at a small flow rate. When the flow rate of two-phase flow is larger than the design flow rate, the distribution and change of impeller radial force are regular under all diameters. As the flow rate of two-phase flow increases, the vector center of impeller radial force moves from the eighth section to the fourth section of volute and the impeller diameter has little effect on it.
Key wordsdouble channel sewage pump   solid-liquid two-phase flow   pressure pulsation   radial force   
收稿日期: 2016-10-27;
基金资助:国家自然科学基金资助项目(51579117,51509109);江苏省自然科学基金资助项目(BK20161350);江苏高校优势学科建设工程资助项目
通讯作者: 廉益超(1994—),男,江苏无锡人,硕士研究生(lycxwj34@163.com),主要从事水力机械多相流研究.   
作者简介: 谈明高(1980—),男,江苏扬州人,研究员,博士(tmgwxf@ujs.edu.cn),主要从事泵水力优化设计研究.
引用本文:   
谈明高,廉益超,吴贤芳等. 双流道泵内瞬态动力学特性[J]. 排灌机械工程学报, 2017, 35(12): 1024-1029.
TAN Ming-Gao-,LIAN Yi-Chao-,WU Xian-Fang- et al. Unsteady dynamics in double channel pump[J]. Journal of Drainage and Irrigation Machinery Engin, 2017, 35(12): 1024-1029.
 
[1] 陈波.离心式污水泵内部流动的三维数值模拟[D]. 南京:南京理工大学,2012.
[2] 单麟婷. 双流道污水泵流动分析与设计方法的研究[D]. 兰州:兰州理工大学,2010.
[3] PAGALTHIVARTHI K V,GUPTA P K,TYAGI V,et al.CFD predictions of dense slurry flow in centrifugal pump casings[J]. International journal of aerospace and mechanical engineering,2011,5(4):16-28.
[4] 程效锐,张楠,赵伟国,等.双吸泵输送含沙水流时蜗壳内压力脉动特性[J].排灌机械工程学报,2015,33(1):37-42. 浏览
CHENG Xiaorui,ZHANG Nan,ZHAO Weiguo,et al. Pressure fluctuation features of sand particle-laden water flow in volute of double-suction centrifugal pump[J].Journal of drainage and irrigation machinery engineering,2015,33(1):37-42.(in Chinese)
[5] DONG R, CHU S, KATZ J. Relationship between unsteady flow, pressure fluctuations, and noise in a centrifugal pump[J]. Journal of fluids engineering, 1995, 117(1): 24-29.
[6] SHI F, TSUKAMOTO H. Numerical study of pressure fluctuations caused by impeller difuser interaction in a diffuser pump stage[J]. Journal of fluid engineering-transaction of the ASME, 2001,123(9): 466-474.
[7] 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.
[8] UY R V, BRENNEN C E. Experimental measurements of rotordynamic forces caused by front shroud pump leakage[J]. Journal of fluids engineering, 1999, 121(3):633-637.
[9] JOSÉ González, JORGE Parrondo, CARLOS Santolaria, et al. Steady and unsteady radial forces for a centrifugal pump with impeller tongue gap variation[J]. Journal of fluids engineering, 2006, 128(3): 454-462.
[10] 张静. 双流道式污水泵叶轮三维设计及水力模型开发研究[D]. 兰州:兰州理工大学,2010.
[11] 齐学义,阎晓伟,姬孝斌,等.双流道污水泵内固相体积分数分布规律[J]. 江苏大学学报(自然科学版), 2009, 30(2):156-159.
QI Xueyi, YAN Xiaowei, JI Xiaobin, et al. Volume fraction distribution rules for solid-phase in double channel sewage pump[J].Journal of Jiangsu University(natural science edition),2009, 30(2):156-159.(in Chinese)
[12] 罗宝杰,赖喜德,张翔,等. 双吸双流道泵流动特性研究[J].流体机械,2014,42(8):21-25.
LUO Baojie, LAI Xide, ZHANG Xiang, et al. Study of flow characteristics of double-channel with double-suction pump [J]. Fluid machinery, 2014, 42(8):21-25.(in Chinese)
[13] 仇晶. 双流道泵蜗壳的流固耦合计算与多目标优化研究[D]. 镇江:江苏大学,2016.
[14] 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)
[1] 高波1, 杜文强1, 杨丽1, 张宁1, 王浩宇1, 袁霄2. 蜗壳面积变化规律对低比转数离心泵性能的影响[J]. 排灌机械工程学报, 2017, 35(9): 749-.
[2] 曹卫东, 张忆宁, 姚凌钧. 多级离心泵内部固液两相流动及磨损特性[J]. 排灌机械工程学报, 2017, 35(8): 652-.
[3] 季磊磊, 李伟, 施卫东, 邵佩佩, 蒋小平. 叶片数对混流泵内部非定常压力脉动特性的影响[J]. 排灌机械工程学报, 2017, 35(8): 666-.
[4] 王家斌, 王逸云, 袁寿其, 裴吉. 两级中开泵级间隔板对双吸叶轮径向力的影响[J]. 排灌机械工程学报, 2017, 35(7): 564-570.
[5] 张琳, 施卫东, 张德胜, 石磊. 基于大涡模拟的混流泵不稳定流动数值研究[J]. 排灌机械工程学报, 2017, 35(4): 303-308.
[6] 韩冬冬, 于凤荣, 张思青. 水泵水轮机水轮机工况全流道三维非定常数值模拟[J]. 排灌机械工程学报, 2017, 35(4): 325-332.
[7] 顾延东, 袁寿其, 裴吉, 刘永, 曹健. 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.
[8] 刘志超, 孔繁余, 王洋, 谢山峰, 赵立峰. 非等距叶片分布对旋涡自吸泵压力脉动的影响[J]. 排灌机械工程学报, 2017, 35(2): 113-118.
[9] 李仁年,, 陈昊, 韩伟,, 李雪峰, 刘慧娟. 颗粒粒径对导叶式离心泵动静叶栅内流动的影响[J]. 排灌机械工程学报, 2017, 35(12): 1018-1023.
[10] 谭林伟, 施卫东, 张德胜, 张扬, 张文全. 叶片出口安放角对单叶片泵性能的影响[J]. 排灌机械工程学报, 2017, 35(10): 835-841.
[11] 史广泰, 刘小兵, 魏文景, 刘洋. 含导叶的液力透平内部压力脉动特性[J]. 排灌机械工程学报, 2017, 35(1): 6-12.
[12] 张霞, 袁寿其, 张金凤, 黄茜. 螺旋形蜗壳型式对高比转数离心泵性能的影响[J]. 排灌机械工程学报, 2017, 35(1): 25-31.
[13] 黄茜, 袁寿其, 张金凤, 张霞. 叶片包角对高比转数离心泵性能的影响[J]. 排灌机械工程学报, 2016, 34(9): 742-747.
[14] 柴立平, 叶欢, 任志明, 李辉. 叶轮参数对泵出口压力脉动的影响[J]. 排灌机械工程学报, 2016, 34(8): 645-650.
[15] 马新华, 冯琦, 蒋小平, 王伟, 陆伟刚. 导叶叶片数对多级离心泵压力脉动的影响[J]. 排灌机械工程学报, 2016, 34(8): 665-671.

江苏大学梦溪校区(镇江市梦溪园巷30号)图书馆5楼 0511-84440893 传真0511--84440033
Copyright 江苏大学杂志社 2010-2015 All Rights Reserved