基于故障预警系统的燃煤发电设备状态检修

基于故障预警系统的状态检修是随状态监测技术发展起来的至今最先进的检修方式。20世纪90年代中国开始推行发电设备状态检修，成效明显者寥寥。为切实推行发电设备状态检修方式，某发电集团从2008年开始引进、开发并推广应用了利用相似性原理建模技术的发电设备故障预警系统。介绍了该系统的机理，并用汽轮机、锅炉、电气和化学专业各1个预警案例阐述故障预警系统在燃煤发电设备状态检修中的有效应用情况，最后就如何将两者更好地结合提出了建议。

Conditional Maintenance of Coal-Fired Power Generation Equipment Based on Early Fault Warning System

The state-based maintenance is by far the most advanced maintenance mode with the development of condition monitoring technology. Since the 1990s, the state-based maintenance of power generation equipment has been implemented in China, but with very few remarkably successful cases. In order to practically implement the state-based maintenance of power generation equipment, a power generation group has introduced, developed and popularized an early fault warning system based on similarity modeling technology for the power generation equipment since 2008. This paper introduces the mechanism of the system, and illustrates how the early fault warning system was effectively applied in the state-based maintenance of coal-fired power generation equipment with the case studies in steam turbine, boiler, electrical elements and chemical elements, respectively. At last, some suggestions are put forward on how to integrate them in a better way.