摘要
LPG智能充气枪在使用过程中,线圈温度会逐渐升高,线圈磁力随温度升高而减弱,打开阀门功能减弱甚至失效,严重影响充装效率。本文建立了充气枪的发热一散热模型,提出了一种强制风冷散热方案,利用有限元法仿真了不同工况下充气枪的温度场,优化了散热结构;对改进后的充气枪进行试验,并与仿真结果进行对比。结果表明:当冷却空气压力为0.1MPa,温度为25℃时,充气枪内测得的温度为51℃,温度下降了47%,改进的风冷散热结构可满足充气枪的温控要求,保证钢瓶厂连续使用充气枪的工况。
During LPG refueling process through smart charging gun,the coil temperature will gradually increase and the coil magnetic force will weaken accordingly.The function of opening valve will weaken or even fail,which will seriously affect filling efficiency.In this paper,heating and cooling is analyzed by means of modelling heat dissipation of charging gun.A forced-air cooling scheme is proposed.The temperature field of the charging gun under different working conditions is simulated and heat dissipation structure is optimized.The experimental results show that:when the cooling air pressure is 0.1 MPa and the temperature is 25℃,the temperature measured in the charging gun is 51℃,decreased by 47%.The improved air-cooled heat dissipation structure can meet temperature control requirements of the charging gun and meet the working conditions of continuous use of the charging gun in the cylinder factory.
作者
李建雄
王兆峻
吴京祥
Li Jianxiong;Wang zhaojun;Wu Jingxiang(Duoliheng(Beijing)Energy Technology Corp)
出处
《城市燃气》
2021年第9期1-5,共5页
Urban Gas
关键词
风冷散热
仿真
液化石油气
温度场
热分析
air cooling
simulation
liquefied petroleum gas
temperature field
thermal analysis
