Process for controlling the waste gas temperature in a boiler arrangement comprises determining the temperatures of the waste gas and heat transfer medium in a heat exchanger, and adjusting the temperature of the heat transfer medium

摘要

Process for controlling the waste gas temperature in a boiler arrangement comprises determining the temperatures of the waste gas and heat transfer medium in a predetermined stage of a heat exchanger, and adjusting the temperature of the heat transfer medium in one or more connected heat exchangers to control the waste gas temperature. Preferred Features: The heat transfer medium is fed through the heat transfer surfaces in larger amounts than in a normal operation. In the course of the process, the amount of heat transfer medium is changed and the temperature of the medium measured.