摘要
为了提高工程实际中的离心式消防泵性能,在原型泵的基础上,优化设计了一种高效、低振且扬程曲线平坦的高性能离心式消防泵.针对消防泵目前存在的问题,基于计算流体力学方法,采用增加副叶片、改变副叶片长度的措施,设计和比较了3种优化方案.结果表明:三种优化方案都在一定程度提高了消防泵性能.优化方案2在设计点的扬程为42.6 m,效率为68.46%,消除了驼峰现象,降低了轴功率,并且提高了效率,综合考虑为最佳方案.研究结果对工程实际中提升消防泵的性能、降低消防泵轴功率具有指导意义.
To improve the performance of the engineering centrifugal fire pump,a high-performance centrifugal fire pump with high efficiency,low vibration and flat head curve was designed and optimized based on the prototype pump.Aimed at the existing problems of the fire pump,with the computational fluid dynamics method,3 optimization plans were designed and compared through increase of the auxiliary blade and change of the auxiliary blade length.The results show that,all the 3 optimization plans can improve the fire pump performance to some extent.Optimization plan 2 has a lift of 42.6 m at the design point and an efficiency of 68.46%,eliminates the hump phenomenon,reduces the shaft power and improves the pump efficiency,which is synthetically chosen as the best plan.The research results have guiding significance for improving the fire pump performance and reducing the fire pump shaft power.
作者
王杰
胡箫
林仁勇
常正玺
赵安宁
文国有
邵海江
WANG Jie;HU Xiao;LIN Renyong;CHANG Zhengxi;ZHAO Anning;WEN Guoyou;SHAO Haijiang(Key Laboratory of Fluid Transmission Technology of Zhejiang Province,Zhejiang Sci-Tech University,Hangzhou 310018,P.R.China;LEO Group Pump(Zhejiang)Co.,Ltd.,Taizhou,Zhejiang 317500,P.R.China)
出处
《应用数学和力学》
北大核心
2025年第9期1209-1217,共9页
Applied Mathematics and Mechanics
基金
国家自然科学基金(12202392,52476039)。
关键词
消防泵
优化设计
数值模拟
内流特性
压力脉动
fire pump
optimized design
numerical simulation
internal flow characteristic
pressure pulsation
