诱导轮叶片厚度对凝结水泵性能的影响分析  

Impact of Blade Thickness of Inducer on Performance of Condensate Pump Performance

作　　者：许陈栋 倪君辉[2] 余敏 余伟平[2] 王正初[2] Xu Chendong;Ni Junhui;Yu Min;Yu Weiping;Wang Zhengchu(School of Mechanical and Energy Engineering,Zhejiang University of Science and Technology,Hangzhou 310023,China;School of Aeronautical Engineering,Taizhou University,Taizhou 318000,China;Zhejiang Water Pump General Factory Ltd,Linhai 317000,China)

机构地区：[1]浙江科技学院机械与能源工程学院,浙江杭州310023 [2]台州学院智能制造学院,浙江台州318000 [3]浙江水泵总厂有限公司,浙江临海317000

出　　处：《化工设备与管道》2022年第5期69-76,共8页Process Equipment & Piping

基　　金：浙江省教育厅一般科研项目(Y201941738);台州市科技计划项目(1902gy12)。

摘　　要：为了探究诱导轮叶片厚度对水泵性能的影响,以某型号的大流量凝结水泵为研究对象,基于SSTk-ω湍流模型,采用有限体积法分别对诱导轮叶片厚度为1、3、5mm的凝结水泵在不同流量和不同进口压力的条件下进行数值模拟,得出叶片厚度对诱导轮外特性及水泵的外特性和汽蚀性能的影响。结果表明:诱导轮叶片厚度越小,诱导轮的扬程就越大,但是对凝结水泵外特性影响较小;相同条件下流量越大,水泵越容易发生汽蚀;诱导轮叶片厚度越小,对水泵汽蚀的抑制效果越优。研究结果可为类似泵的诱导轮几何设计提供理论参考。In order to explore the influence of blade thickness of inducer on pump performance, a certain type of large-flow condensate pump was taken as the research object. Based on SST k-ω turbulence model, the finite volume method is used to numerically simulate condensate pumps with inducer blade thickness of 1, 3 and 5 mm at different flow rates and different inlet pressures. The effect of the blade thickness on the external characteristics of the inducer and the external characteristics and cavitation performance of the pump was obtained. The results show that: the smaller the inducer blade thickness is, the larger the head of the inducer is, but the impact on the external characteristics of the condensate pump is smaller. The higher the flow rate at the same conditions, the more likely cavitation occurs in the pump;The smaller the blade thickness of inducer is, the better the cavitation inhibition effect of pump is. The research results can provide a theoretical reference for the geometric design of the inducer of similar pumps.

关 键 词：凝结水泵 诱导轮 叶片厚度 计算流体力学 

分 类 号：TQ050.2[化学工程] TH311[机械工程—机械制造及自动化]