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屏蔽电机定子齿压板局部温升过高分析

, PP. 113-120

Keywords: 主泵屏蔽电机,温度场,绝缘,齿压板,锥形环,过热

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Abstract:

主泵屏蔽电机是化工厂以及核电站的重要组成部分,主要用来运送高温、高压、毒性、腐蚀性、放射性的液体,其安全稳定的运行对化工厂及核电站回路系统非常重要。针对主泵屏蔽电机内发热与冷却的复杂性以及工作在密封高温条件下的特点,以一台5000kW主泵屏蔽电机为例,采用温度场基本理论,用有限体积法对其端部齿压板和锥形环的温升进行数值计算,找到了工厂实验过程中电机端部温升过高的原因。结合电磁场分析结果,通过改进齿压板结构,给出了新型齿压板与锥形环的连接方案,从而解决了电机端部温升过高的问题,为更大容量主泵屏蔽电机温度场的准确计算提供理论和实践依据。

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