基于磁-热耦合分析的综合管廊电力舱温度监控布置方法

Temperature Monitoring Arrangement Method Through Magneto-thermal Coupling Analysis for Power Cabin of Integrated Pipe Gallery

针对综合管廊电力舱室内部线路复杂,且通风散热环境恶劣容易起火,需要对电力舱内温度进行监测的问题,提出了一种基于磁-热耦合的综合管廊电力舱温度监控方法,采用有限元法,根据电力舱工程实际模型建立二维模型,进行多物理场耦合数值计算,得出温度分布云图。在温度较高处设置多条温度观测线,读取其温度并拟合成曲线,找出温度最高点。通过该方法可以找出最易起火点,并对该点布置温度监控,从而有效地预防火灾的发生。

Dwing to the complexity of internal wiring and the inflammability as a result of bad ventilation and heat dissipation,the temperature of the power cabin of integrated pipe gallery needs to be monitored.In this paper,a temperature monitoring arrangement method through magneto-thermal coupling analysis is proposed.By using the finite element method,a two-dimensional model is established on the basis of actual model project of power cabin.After multi-physics coupling numerical calculation,a temperature nephogram is figured out.Then,by setting multiple temperature observation lines at high temperature area,reading the value and fitting into curve,the highest temperature spots can be excavated.Thus,the most inflammable spot can be discovered and the fire hazard can be wiped out effectively by deploying the temperature monitoring in the places.