介质差异对靶场燃料加注泵工作特性的影响  

Study on Influence of Discrepancies of Fluids Properties on Performances of Propellant Loading Pump in Launch Site

作　　者：高阳[1] 冯辅周[1] 张丽霞[1] 张红星 

机构地区：[1]装甲兵工程学院机械工程系,北京100072 [2]太原卫星发射基地,山西太原036304

出　　处：《机械设计与制造》2016年第5期249-252,共4页Machinery Design & Manufacture

基　　金：军队科研计划项目;国家自然科学基金(51205407)

摘　　要：采用CFD方法研究了靶场燃料加注泵在输送推进剂(N2O4)和清水时的工作特性差异,并从加注泵内部流场分布及介质物理性质的角度分析了造成工作特性差异的原因。研究结果表明:(1)输送推进剂与清水时泵的扬程和效率曲线变化不大,但对于精确加注,该变化应引起适当注意;(2)输送推进剂时泵的功率曲线高于输送清水时,且其差距随着流量的增加而增加;(3)输送推进剂时泵的温升曲线高于输送清水时,且前者随着流量增加的增速大于后者,但两者的最高温升均小于1℃。本研究对与加注泵相关的计算选型工作具有重要的指导意义。Studies the discrepancies of performances of propellant loading pump in launch site when transporting between N2O4 and liquid water using CFD method,and analyzes the causes from the perspective of fluid properties and inner flow field. Results show that：（1）differences of head curve and efficiency curve when transporting between propellant and liquid water are insignificant,but proper consideration should be paid for precise loading;（2）the power curve of the loading pump when transporting propellant is higher than that when transporting liquid water,and this difference becomes larger with the increasing of volume flow rate;（3）higher and sharper temperature rise appears when transporting propellant,but for transporting both fluids,the maxim rise is below 1℃. Conclusions made above are meaningful for computation and type selection of loading pump.

关 键 词：加注系统 加注泵 推进剂 清水 工作特性 CFD 

分 类 号：TH16[机械工程—机械制造及自动化]