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蒸汽射流道路除冰效率仿真研究
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Study on road de-icing efficiency with impinging vapor jet
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    摘要:

    提出将射流冲击技术应用于路面积冰去除,将具有一定温度、压力、流量等射流参数的蒸汽流体,经过射流管上的细孔喷出,冲击冰路结合处,使该区域温度迅速升高至融化,实现积冰与路面的快速分离,结合铲斗,将冰层推走.利用Gambit和Fluent流体仿真软件建立射流除冰的数值模型,研究不同孔径大小和分布规律对除冰效率的影响规律.仿真研究结果表明:随着区域内射流孔分布密度的增加,除冰效率也相应增大,其中8孔射流嘴除冰效率达到了24 km/h,但随着孔数的增加,除冰效率并不成单调性增长,需要选择合适的最优值.

    Abstract:

    Jet impinging technology is put forward to remove the ice on the road.The vapor jet with certain temperature,pressure,and flow is injected through several small nozzles to icy road.The ice is warmed or even melted,thus separated from the road and then are pushed away by a forklift truck.The softwares named Gambit and Fluent are used to establish numerical model and study the de-icing efficiency with different nozzle distribution patterns in same area.Results show that the de-icing efficiency is improved with the increase of jet nozzle number,which can reach 24 km/h with 8 nozzle pattern.Yet the increase of de-icing efficiency is not in linear relationship with increase of the nozzle number,thus an optimal value of nozzle number is needed to choose.

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引用本文

张凯,侯庆落.蒸汽射流道路除冰效率仿真研究[J].南京信息工程大学学报(自然科学版),2013,5(3):251-256
ZHANG Kai, HOU Qingluo. Study on road de-icing efficiency with impinging vapor jet[J]. Journal of Nanjing University of Information Science & Technology, 2013,5(3):251-256

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  • 收稿日期:2012-03-07

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