超临界锅炉贮水箱液位控制策略

The Control Strategy of the Storage Vessel Level in Supercritical Boiler

介绍了超临界机组带循环泵内置式分离器启动系统的贮水箱液位控制策略,重点对贮水箱的正常运行模式、限制流量模式和溢流阀的控制进行了介绍。该逻辑设计实现了机组在启、停和升降负荷过程中贮水箱液位的全自动控制,在保证系统经济、稳定的同时也提高了控制的灵活性。

This dissertation introduces the control strategy of the storage vessel level in supercritical unit which includes a built-in start-up system with circulation pump.Mainly introducing the normal operation mode and the restricted flow mode of the storage vessel,and the control method of the overflow valve.This design of the logic makes a full-automatic control of the storage vessel level in the period of the unit operating in start-up and shut-down working condition or increasing and droping load,it guarantees the stability and economy of the system and also a greater flexibility of control.