超疏水铝导线防覆冰机理研究
发布时间：2018-09-09 09:56
【摘要】：近年来,超疏水表面在电力系统防覆冰方面的应用受到了广泛关注,为了对超疏水铝导线的防覆冰机理和防覆冰效果进行研究,制备了超疏水铝导线和普通铝导线,利用实验室搭建的覆冰实验平台对其覆冰过程进行了记录和分析。研究结果表明液滴在超疏水铝导线表面汇聚后可能发生自跳跃现象,使用界面自由能理论并结合能量守恒的观点对此进行了分析,认为液滴自跳跃过程有利于液滴滚落,延缓覆冰。此外,还对单个液滴在两种铝导线表面的结冰过程进行了研究,发现液滴在超疏水铝导线表面特殊的接触状态延缓了液滴在其表面的结冰时间,并且这种延缓效果主要体现在液滴发生相变之前。液滴在超疏水铝导线表面直接滚落,自跳跃滚落以及缓慢结冰使得超疏水铝导线在-5℃时拥有良好的防覆冰效果,实验结果对超疏水铝导线防覆冰理论的发展具有重要作用。
[Abstract]:In recent years, the application of superhydrophobic surface in anti-icing of power system has been paid more and more attention. In order to study the anti-icing mechanism and anti-icing effect of super-hydrophobic aluminum conductor, superhydrophobic aluminum conductor and ordinary aluminum conductor have been prepared. The icing process was recorded and analyzed by using the ice experiment platform built in the laboratory. The results show that the self-jumping phenomenon may occur after the droplets converge on the surface of superhydrophobic aluminum conductors. The theory of interface free energy and the viewpoint of energy conservation are used to analyze this phenomenon. It is considered that the self-jumping process of droplets is beneficial to the drop rolling. Delay the icing. In addition, the freezing process of single droplet on the surface of two kinds of aluminum conductors is studied. It is found that the special contact state of droplets on the surface of super-hydrophobic aluminum conductors delays the freezing time of droplets on the surface. And this effect is mainly reflected before the droplet phase transition. The droplets roll directly on the surface of superhydrophobic aluminum conductors, self-jump rolling and slow icing make super-hydrophobic aluminum conductors have a good anti-icing effect at -5 鈩，
本文编号：2232049
[Abstract]:In recent years, the application of superhydrophobic surface in anti-icing of power system has been paid more and more attention. In order to study the anti-icing mechanism and anti-icing effect of super-hydrophobic aluminum conductor, superhydrophobic aluminum conductor and ordinary aluminum conductor have been prepared. The icing process was recorded and analyzed by using the ice experiment platform built in the laboratory. The results show that the self-jumping phenomenon may occur after the droplets converge on the surface of superhydrophobic aluminum conductors. The theory of interface free energy and the viewpoint of energy conservation are used to analyze this phenomenon. It is considered that the self-jumping process of droplets is beneficial to the drop rolling. Delay the icing. In addition, the freezing process of single droplet on the surface of two kinds of aluminum conductors is studied. It is found that the special contact state of droplets on the surface of super-hydrophobic aluminum conductors delays the freezing time of droplets on the surface. And this effect is mainly reflected before the droplet phase transition. The droplets roll directly on the surface of superhydrophobic aluminum conductors, self-jump rolling and slow icing make super-hydrophobic aluminum conductors have a good anti-icing effect at -5 鈩，
本文编号：2232049
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