电气化铁路隧道微波防冰研究Research on microwave anti-icing for electrified railway tunnel
王永亮,钟选明,廖成,李军野,冯菊
摘要(Abstract)：
对电气化铁路隧道的防冰问题进行研究,提出非接触式微波致热防冰方法。该方法通过天线发射微波加热隧道裂缝渗水处的混凝土,使得渗水处温度上升,温升超过5℃,促使渗水区跨越-5~0℃这一水凝结成冰的温度区段,防止渗水凝结成冰,实现隧道防冰目的。同时对微波频率、天线输入功率与隧道微波防冰效率的关系进行仿真研究。结果表明,将2.45 GHz,2 000 W微波馈入天线,延时4 443 s,渗水处温升达到5℃。天线输入功率越大,温升越快;相同条件下,5.8 GHz的防冰效率较2.45 GHz高,前者为后者的2.3倍,频率越高,温升越快。
关键词(KeyWords)： 铁路隧道;微波防冰;效率温升;电气化;非接触式;防冰效率
基金项目(Foundation): 国家973计划资助项目(2013CB328904);; 中央高校基本科研业务专项资金(2682015CX062)~~
作者(Author): 王永亮,钟选明,廖成,李军野,冯菊
DOI: 10.16652/j.issn.1004-373x.2018.07.026
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