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电磁轴承是高温气冷堆动力转换系统氦气透平的重要组件之一,运行时出于设备保护需要对其进行冷却。该文通过GAMBIT对电磁轴承腔体进行建模,并使用三维流场分析软件FLUENT对腔内温度场、流场进行了模拟计算,评估了冷却系统的效果,并对不同氦气流量、温度下的冷却效果进行了比较及分析。分析结果表明,设计的冷却系统可有效地对电磁轴承腔内进行冷却,使用于定位监测的传感器探头等重要部件的温度被控制在允许范围之内,以确保设备安全运行。
Electromagnetic bearings are one of the most important components of a high-temperature gas-cooled reactor power conversion system for helium turbines, which are cooled during operation for equipment protection needs. In this paper, the electromagnetic bearing cavity is modeled by GAMBIT. The three-dimensional flow field analysis software FLUENT is used to simulate the temperature field and flow field in the cavity. The effect of the cooling system is evaluated. The effects of different helium flow rate, temperature The cooling effect is compared and analyzed. The analysis results show that the cooling system designed can effectively cool the electromagnetic bearing cavity, and the temperature of important components such as the sensor probe used for positioning monitoring is controlled within the allowable range to ensure the safe operation of the equipment.