REGULATING STEAM TEMPERATURE IN DRUM BOILERS BY MEANS OF INJECTION DESUPERHEATERS. INITIAL INVESTIGATION OF THE CONTROLLED OBJECT

摘要

The object of study was an automated system designed to control the feed of coolant water to the superheater tract of a TP-87 steam boiler used in a power plant. The dynamic characteristics of the superheaters were determined in relation to the channels used to transmit the control actions. It was established that a corrective system needs to be designed to automatically regulate the temperature of superheated steam for drum-type power boilers. An analysis of the system currently used on the above-indicated boiler for automatic control of the temperature of the superheated steam revealed the advantages, deficiencies, and limitations of the obsolete, worn-out system. The factors that affect the stable operation of the automated control systems of boiler plants were also determined.