Using thermal imaging to prevent loss of steam turbine efficiency by detecting and correcting inadequate insulation at turbine startup
    1.
    发明授权
    Using thermal imaging to prevent loss of steam turbine efficiency by detecting and correcting inadequate insulation at turbine startup 失效
    利用热成像技术,通过检测和校正涡轮启动时的绝缘不足,防止蒸汽轮机效率的损失

    公开(公告)号:US07090393B2

    公开(公告)日:2006-08-15

    申请号:US10318198

    申请日:2002-12-13

    IPC分类号: G01N17/00 G01N21/09 G01K13/08

    摘要: The invention involves the use of thermal imaging equipment to take infrared images of a steam turbine during start-up. The exterior temperatures developed from the infrared images are correlated with turbine vibration data to determine which insulation temperature patterns reflect insulation poor enough to cause packing seal teeth to rub and the turbine to vibrate during operation or shut-down. From the thermal images and vibration data, control limits are developed for insulation surface temperature. Insulation is added, before the steam turbine is shut down, in accordance with the obtained data and control limits.

    摘要翻译: 本发明涉及使用热成像设备在启动期间拍摄蒸汽轮机的红外图像。 从红外图像产生的外部温度与涡轮机振动数据相关,以确定哪些绝缘温度模式反映绝缘体不足以使填充密封齿摩擦并且涡轮在运行或停机期间振动。 根据热图和振动数据,开发了绝缘表面温度的控制限制。 根据获得的数据和控制限制,在蒸汽轮机关闭之前添加绝缘。