适用于超临界机组深度调峰状态下的干湿态无扰切换系统及控制方法

本发明提供一种适用于超临界机组深度调峰状态下的干湿态无扰切换系统及控制方法，包括：储水罐，出口处连接有三通，入口与分离器出口连通；热水循环系统，与储水罐的出口连通，配置为采用热水循环泵的方式将储水罐饱和水循环至省煤器入口，再流经水冷壁到达分离器，实现工质再循环；储水罐水位微调节系统，包括与储水罐出口连通的除氧器和高压加热器，用于将储水罐饱和水引至除氧器内，经高压加热器加热后循环至省煤器和水冷壁后到达分离器。该切换系统能够实现机组干湿态灵活转换，以及超临界机组20％～100％负荷长周期灵活性调峰，保证机组安全稳定运行，且在机组启动阶段减少了启动时间、工质和热量外排，实现了热量有效回收。 The invention provides a dry and wet state undisturbed switching system suitable for a supercritical unit in a deep peak regulation state and a control method. The dry and wet state undisturbed switching system comprises a water storage tank; an outlet is connected with a T-connector; an inlet is communicated with the outlet of a separator; a hot water circulation system is communicated with the outlet of the water storage tank and is configured to circulate saturated water in the water storage tank to an inlet of an economizer by adopting a hot water circulation pump; then the saturated water flows through a water cooling wall to reach the separator to realize working medium recirculation; a water level fine adjustmen