某水电站GIS电缆层中SF_6重气扩散的数值模拟

The Numerical Simulation Study of the Pervasion about the SF_6 Heavy Gas in the GIS Cable Layer of the Hydroelectric Power Station

本文以国内某水电站的GIS电缆层为对象,应用CFD数值模拟方法,对以SF_6为代表的重气扩散规律进行研究与分析。着重探讨在不同泄漏量和排风量条件下,SF_6重气在电缆层中浓度的变化及各因素对重气扩散规律的影响,得出了若干结论。相关研究可为后续模型实验研究提供技术指导,也可为同类电站厂房建设提供借鉴与参考。

The pervasion rule of the heavy gas that take SF6 as representative is researched and analyzed by the method of the numerical simulation based on the GIS cable layer of a domestic hydroelectric power station, This paper emphatically discusses the density change of the SF6 heavy gas in the cable layer and the influence of the various factors under the different quantity of the heavy gas and the different quantity of the wind, and some results and conclusions are obtained, The correlative research results may provide the technical guidance for the study of the following model test, and also may provide the model and the reference for the build of the similar workshop of the hydroelectric power station.