How does the steam generator steam system work?

　　In terms of water vapor system, the water is heated to a certain temperature in the heater, enters the economizer through the flowing water pipeline, conducts the next heating, and then sends it to the drum. It is mixed with pot water and goes down the down pipe to the inlet header of the water wall. The water absorbs the radiant heat of the furnace in the water-cooled wall tube to form a steam-water mixture, which reaches the drum through the rising tube, and separates the water and steam through the steam-water separation device. The separated saturated steam flows from the upper part of the drum to the superheater, continues to absorb heat to become superheated steam at 450°C, and then sends it to the steam turbine.