国产引进型600MW机组氢冷却器漏氢分析处理

来源 :2016年中国电机工程学会年会 | 被引量 : 0次 | 上传用户:Melissachen
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本文主要介绍华润电力登封有限公司二期工程东方电气生产2×600MW氢内冷发电机组氢气冷却器自由端滑动结合面密封漏氢的分析处理.氢气冷却发电机漏氢量(率)的大小直接影响机组的安全运行、影响着发电机的冷却效果、影响着发电机的带负荷能力,这个指标是汽轮发电机运行的主要技术指标之一,所以对发电机组漏氢量(率)的控制很重要.影响发电机漏氢的因素很多,包含发电机密封油系统、发电机氢气冷却系统、发电机定子水冷却系统、发电机本体及与氢气相关的所有结合面、管道、法兰等各方面,建议在分析清楚引起发热的原因为感应电流,并且考虑到感应电压较低,一般的绝缘材料就可以满足需求。在分析对比各种绝缘材料以后,为了方便安装,最终选择在发电机氢气冷却器压铁上包扎透明胶带为材质的绝缘层,以切断感应电流通道。
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