排灌机械工程学报
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排灌机械工程学报  2010, Vol. 28 Issue (1): 43-46    DOI: 10.3969/j.issn.1674—8530.2010.01.009
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万吨级反渗透海水淡化高压泵级数的优化选择
胡敬宁,  江 伟,  叶晓琰,  刘三华
(江苏大学 流体机械工程技术研究中心, 江苏 镇江 212013)
Optimal selection for stage number of high pressure multi-stage pump for 10 k ton-scale reverse osmosis desalination systems
Hu Jingning,  Jiang Wei,  Ye Xiaoyan, Liu Sanhua
(Technical and Research Center of Fluid Machinery Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China)
 全文: PDF (308 KB)   HTML (1 KB)   输出: BibTeX | EndNote (RIS)      背景资料
摘要 反渗透海水淡化高压多级离心泵为新型轴向吸入节段式多级泵.为了提高其效率以及转子系统的稳定性,利用ANSYS有限元分析软件,对不同级数的海水淡化多级泵转子-轴承系统进行了模态分析,计算了转子系统的临界速度,研究了临界转速与级数的关系以及对数衰减率与级数的关系,并结合多级泵效率与级数的关系,讨论了海水淡化高压泵级数的最优选择.综合转子系统的稳定性和效率两方面因素,海水淡化用高压多级泵选用6级较为合适.可为设计过程中对参数的合理选择提供一些参考依据.
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胡敬宁
江 伟
叶晓琰
刘三华
关键词多级离心泵   转子-轴承系统   模态分析   临界转速   对数衰减率   海水淡化     
Abstract: The high pressure pump for seawater reverse osmosis desalination systems is an axial suction segment multi-stage pump. In order to improve the efficiency and stability of rotor system, the rotor-bearing system for different stages high pressure pump of seawater reverse osmosis desalination systems is mode analyzed using ANSYS. The rotor system critical speed are calculated, and the relationship between the stage number and the critical speed as well as the logarithmic decay rate is studied. The optimal selection for stage number is discussed under consideration of the relationship between pump efficiency and stage number. The results show that 6 stages is more reasonable for rotor system stability and efficiency. Some references on selecting reasonable parameters for this type pump design are proposed.
Key wordsmulti-stage centrifugal pump   rotor-bearing system   mode analysis   critical speed   logarithmic decay rate   seawater-desalination   
收稿日期: 2009-09-24; 出版日期: 2010-01-30
基金资助:

"十一五"国家科技支撑计划项目(2006BAB03A02);江苏省高技术研究计划立项项目(BG2006024)

通讯作者: 胡敬宁(1962-),男,安徽安庆人,研究员(hujingning@263.net),主要从事流体机械及工程研究.    
作者简介: 江伟(1985-),男,江西抚州人,硕士生(weijianglut@126.com),主要从事流体机械研究.
引用本文:   
胡敬宁, 江 伟, 叶晓琰等. 万吨级反渗透海水淡化高压泵级数的优化选择[J]. 排灌机械工程学报, 2010, 28(1): 43-46.
HU Jing-Ning, Jiang- Wei, Ye-Xiao-Yan et al. Optimal selection for stage number of high pressure multi-stage pump for 10 k ton-scale reverse osmosis desalination systems[J]. Journal of Drainage and Irrigation Machinery Engin, 2010, 28(1): 43-46.
 
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