Parallel Optimization of Reverse Heating of High Pressure Cylinder and Preheating of Control Valve for 635 MW Unit
The rapid development ofnew energy enterprises has brought higher absorption costs to Shandong power spot market.Thermal power units are forced to frequently start and stop for deep peak adjustment.During the spring and au-tumn seasons,thermal power units often experience daily startup and shutdown situations,which not only puts forward a great challenge for the safety and reliability of thermal power units,but also puts forward higher requirements for the flexibility of the units.In this paper,by optimizing the logic of DEH system,the process of reverse heating of the high pressure cylinder and preheating of the control vavle is carried out synchronously,increasing the flexibility of the heat soa-king control of the high pressure cylinder,and achieving the effect of shortening the startup time of the unit and extending the service life of the unit.
deep peak shavinghigh-pressure cylinder warmingpreheating of the control valveoptimization of soaking heat control
NETL
NSTL
万方数据
