DRUM LEVEL CONTROL METHOD AND DEVICE FOR BOILER

摘要

PROBLEM TO BE SOLVED: To improve the economic efficiency of a boiler by minimizing drainage accompanied by drum level control. SOLUTION: Drum level control for controlling the drum level of a drum in the boiler based on a predetermined control level is performed at the start of the boiler by obtaining a starting control level Ls by a starting control level computing element 11 based on the state quantity of the drum obtained by measurement on the drum before starting, and using the starting control level Ls as a control level. COPYRIGHT: (C)2009,JPO&INPIT