年产万吨级海水淡化高压泵关键技术研究与工程应用  

KEY TECHNOLOGY AND ENGINEERING APPLICATIONS OF 10 kt-SCALE DESALINATION HIGH-PRESSURE PUMP

作　　者：叶晓琰[1] 佘旭南 胡敬宁[1] 汪靖[1] 冯耀宁[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：《水处理技术》2015年第10期95-99,共5页Technology of Water Treatment

基　　金：国家科技支撑计划项目(2013BAB08B02);国家自然科学基金资助项目(51276083)

摘　　要：为了降低反渗透海水淡化高压泵投资成本和能耗,对高压泵的结构特点进行了分析,提出1种两端水润滑轴承支撑、轴向吸入节段式多级泵新型结构,通过数值模拟和实验研究提高泵水力模型效率;结合多级泵效率与级数以及可靠性与级数的关系,优选了高压泵的级数;通过轴向力及轴向力平衡的研究,优化设计出泄漏量较小、灵敏度高、恢复力合适的平衡装置;开发出的高压泵产品效率达到83.07%,体积流量220 m3/h,扬程620 m。并成功应用于年产万吨级海水淡化示范工程。In order to reduce the investment cost and energy consumption of high-pressure pump in Seawater Reverse Osmosis desalination project, a new type of multistage high-pressure centrifugal pump with two ends of water-lubricated bearings supporting and axial suction was proposed after analyzing the structural feature of the high-pressure pump. Numerical simulation and experimental study was used to improve the efficiency of the pump hydraulic model, and the relationship between the stage and efficiency of multistage pump was combined to analyze the optimal selection for the impeller stages of multistage pump. By studying the axial force and the axial balancing device, a new balancing device with less leakage fluid, high balancing sensitivity and proper restoring force was designed. The experimental results showed that the efficiency of the new multistage high-pressure centrifugal pump reached 83.07%. The new multistage high-pressure centrifugal pump can be successfully applied in seawater desalination project.

关 键 词：年产万吨级 反渗透海水淡化 高效率 高压多级离心泵 

分 类 号：P747.7[天文地球—海洋科学]