2017年全国发电厂热控系统故障统计分析与建议

Statistics and Analysis of the Thermal Control System Faults in the Power Plants Nationwide Throughout 2017

从2017年全国发电厂发生的热控系统故障中,筛选了涉及系统设备、设计组态、安装、检修维护及运行操作等方面的148起典型案例并进行了整理分类。通过对这些典型案例的统计分析,针对控制系统及辅助设备老化、自动系统缺乏试验和维护、就地独立装置故障高发、典型故障重复发生等问题,提出了开展设备劣化分析和更新升级、重视自动系统品质维护、加强制度规范和执行、加强技术管理和人员培训等相关措施和建议,以进一步消除热控系统的故障隐患,提高热控系统的可靠性。

In this paper, 148 typical cases involving system design, configuration, installation, maintenance and operation are selectedand categorized from the collection of the thermal control system faults that occurred in the power plants nationwide throughout2017. Through the statistical analysis of these typical cases, regarding the problems including the aging of the control system andauxiliary equipments, inadequate testing and maintenance of the automatic system, high failure rate of the on-site standalone controldevices and repetitive occurrence of the typical faults, etc., the relevant pre-control measures and suggestions to further eliminate thepotential risks and improve the system reliabilities are proposed such as equipment degradation analysis and upgrading, automaticsystem quality maintenance, specification normalization and implementation, and strengthening the effectiveness of the technicalmanagement and the personnel training.