9E型联合循环汽轮机DEH系统故障分析及对策

Fault Analysis and Countermeasure of 9E Combine Cycle Steam Turbine DEH System

介绍了镇海燃机#9机组改造后DEH系统存在的问题。通过对系统调试运行过程中故障的分析,尤其针对燃气—蒸汽联合循环汽轮机的特殊性,提出了DEH控制系统完善化方案,并进行了参数优化、整定。结果表明,#9机组DEH控制系统能连续正常投入运行,汽轮机的安全性、可靠性和经济性得到提高。

This paper introduced the problems of Zhenhai 9E combine cycle power plant unit nine＇s transformed DEH control system.Analyzed the fault of adjusting course,aiming at the particularity of the gas turbine-steam turbine combine cycle unit,brought forward optimizing project of DEH control system,optimized the parameters.The results showed that the optimized DEH control system of unit nine was in order,and improved the operating safety,reliability,economy of steam turbine.