消防泵压差导流冷却循环的数值模拟研究  

Numerical study on differential pressure diversion cooling circuit of fire pump

作　　者：赵熙 王成[1,2] 芮延年 芮晓光[4] Zhao Xi;Wang Cheng;Rui Yannian;Rui Xiaoguang(School of Mechanical&Electric Technology,Suzhou Institute of Trade&Commerce,Jiangsu Suzhou 215009,China;Jiangsu PV Wind Power Control Engineering Research and Development Center,Jiangsu Suzhou 215009,China;School of Mechanical&Electrical Engineering,Suzhou University,Jiangsu Suzhou 215006,China;School of Computer Engineering,Suzhou Vocational University,Jiangsu Suzhou 215104,China)

机构地区：[1]苏州经贸职业技术学院机电技术学院,江苏苏州215009 [2]江苏省光伏风电物联工程技术研究开发中心,江苏苏州215009 [3]苏州大学机电工程学院,江苏苏州215006 [4]苏州市职业大学计算机工程学院,江苏苏州215104

出　　处：《消防科学与技术》2023年第2期217-221,共5页Fire Science and Technology

基　　金：国家高技术研究发展计划项目(2012AA063506);苏州市应用基础研究计划项目(SNG2020050);苏州高职高专院校“产教融合、校企合作”教育改革研究课题(2021JG004)。

摘　　要：设计了压差导流冷却循环回路,并对其影响因素进行了研究。通过构建水泵冷却循环耦合换热数值模型,分析了导流通道的倾斜角度、孔径大小和水泵转速等对散热的影响。结果表明:相比倾角15°,导流通道倾角55°的平均热交换系数增加了13.2%,在忽略流量损失的条件下,设计采用倾角为55°。随着导流通道半径的增大,固体温度下降趋势减缓,考虑到管径的扩大会增加结构成本和能量损失,取4.5mm为设计半径值。冷却通道流量与水泵转速基本呈正比,满足不同转速下的散热需求。To improve the heat dissipation performance of the seal end face of fire pump,a differential pressure diversion cooling loop is designed and the influencing factors have been studied.Based on the numerical model of fire pump cooling cycle,the influences of tilt angle and radius of diversion channel and pump speed on heat transfer have been analyzed.The results show that,compared with the inclination angle of diversion channel 15̊,the 55̊condition's average surface heat transfer coefficient have been increased by 13.2%.Ignoring the mass flow loss,the optimal inclination angle is 55̊.With the increase of diversion channel radius,the decreasing trend of solid temperature has been decreased.Considering that the expansion of pipe radius will increase the structural cost and energy loss,4.5 mm is taken as the design radius value.The cooling channel flow is basically proportional to the pump speed,meeting the heat dissipation requirements at all pump speeds.

关 键 词：消防泵 压差导流 冷却循环 热流耦合 数值模拟 

分 类 号：TU892[建筑科学] TH311[机械工程—机械制造及自动化]