小机组液压调节系统的改造  

Transformation for small steam turbine hydraulic governing system

作　　者：李金勇 张平湖 

机构地区：[1]中国联合工程公司,浙江杭州310022

出　　处：《能源工程》2010年第4期65-68,共4页Energy Engineering

摘　　要：随着汽轮机的发展和电网峰谷差的不断增大,对机组的调峰和调频要求越来越高。因此,降低运行成本,改善机组运行可靠性和控制灵活性,已成了各电厂特别是老电厂的当务之急。介绍了广州石化1号机组液压调节系统改造为数字式电液调节系统的改造方案,对比分析了机组调节系统改造前后的控制水平。As the development of steam turbine and growing of power peak and valley difference,the requirement for turbine-generator unit variable load and frequency modulation have become higher.Therefore,to reduce operating costs,improve reliability and control flexibility of plant operation have become the top priority of all power plant,especially the old power plant.The project for Guangzhou Petrochemical Company NO.1 Unit hydraulic governing system transformed into digital electro-hydraulic control system was introduced,and analysis of the unit system control level before and after transformation was compared.

关 键 词：液压调节系统 数字式电液调节系统 直接驱动阀 超速保护控制 

分 类 号：TK223.7[动力工程及工程热物理—动力机械及工程]