万吨级反渗透海水淡化高压泵的优化设计  

Optimal design of high pressure pump for 10000tons reverse osmosis desalination system

作　　者：胡敬宁[1] 肖霞平[1] 周生贵[1] 周广凤[1] 潘金秋[1] 

机构地区：[1]江苏大学流体机械工程技术研究中心,江苏镇江212013

出　　处：《排灌机械》2009年第1期25-29,共5页Drainage and Irrigation Machinery

基　　金：国家科技支撑项目(2006BAB03A02);江苏省高新技术项目(BG2006024)

摘　　要：结合反渗透海水淡化高压泵的能耗状况,合理选择了万吨级反渗透海水淡化高压泵的泵型,提出了一种轴向吸入节段式高压多级泵的新型结构型式.在已有高效水力模型的基础上,对影响效率的几个关键水力尺寸进行不同的优化组合,设计了6种叶轮模型和2种导叶模型,组合成6组水力模型.应用CFD方法对6组水力模型进行了性能预测,挑选出2组效率高(预测)的水力模型制作成2台单级模型泵进行试验研究.2组水力模型试验表明,泵的流量、扬程满足高压泵的要求,其中最优模型的效率达到了79.72%.Considering the energy consumption of the HP-pump for SWRO, a reasonable type of high pressure pump was selected, and a new structure of the axial suction segment multistage pump was proposed. Based on the existing effective hydraulic models, through optimizing several key hydraulic dimen- sions which affect the efficiency, six kinds of impeller models and two kinds of guide vanes were designed, and six groups of hydraulic models were assembled . Performance characteristics of these models were predicted by using the CFD technology. Two groups of high-efficiency hydraulic models were selected to produce two single-stage model pumps for test research. The tests show that the capacity and head meet the requirements of the HP-pump, and the efficiency of the best model pump reaches to 79.72%.

关 键 词：反渗透海水淡化 高压多级泵 离心泵 轴向吸入 效率 模型 

分 类 号：TH311[机械工程—机械制造及自动化]