流体机械2016，Vol.44Issue(12)：18-24,7.DOI:10.3969/j.issn.1005-0329.2016.12.004
核主泵流体动压型圆形深槽密封的热流耦合分析
Analysis of Themal-fluid Coupling of Hydrodynamic Circular Deep Groove Seal in Reactor Coolant Pumps
摘要
Abstract
The research use the circular deep grooves hydrodynamic seal as the research object,it was established three dimen-sional heat transfer across scales system model including sealing ring,liquid membrane and seal chamber. To get the flow field dis-tribution、pressure distribution and temperature distribution of liquid film,sealing ring,seal chamber,using the commercial CFD software Fluent,coupling the fluid-structure interface,solving the energy equation and Navier-Stokes equation. On the basis of the study,taking the rotational speed and flushing location of inlet and outlet into consideration,research the influence to the three-di-mensional heat transfer system. The results show that the cooling flush has significant effect to the heat dissipation of sealing ring;Deep groove can reduce the temperature of the seal face,has local cooling effect;the deep groove structure and fluid inertia effect cause the pressure gradient on both sides of deep groove;the rotational speed has huge influence to the temperature field compare to the flushing quantities;flushing location of inlet and outlet has huge influence on temperature field of sealing ring,There exist optimal value of flushing location of inlet and outlet,dimensionless quantity L/L0 equal to 4/7 is the optimal position of flushing in-let,the outlet position around the rotating ring of outer convex platform has optimal cooling effect.关键词
核主泵/深槽密封/跨尺度三维传热/热流耦合Key words
reactor coolant pumps/deep groove seal/three-dimensional heat transfer across scales/thermal-fluid coupling分类
机械制造引用本文复制引用
李定,孟祥铠,李纪云..核主泵流体动压型圆形深槽密封的热流耦合分析[J].流体机械,2016,44(12):18-24,7.基金项目
国家自然科学基金项目(51375449,51005209) （51375449,51005209）
浙江省自然科学基金项目(LY14E050012) （LY14E050012）
