Methods for controlling temperature in heating furnaces

Abstract

The invention relates to a method for controlling the temperature of a heating furnace, which includes the following steps: calculating the average temperature of the temperatures measured by thermocouples; calculating the response time based on the temperature difference between the adiabatic flame temperature and the average temperature; calculating the adjustment ratio according to the response time; calculating the compensation gain by multiplying a given gain by the adjustment ratio; Calculate the integral compensation coefficient by multiplying the integral coefficient by the adjustment ratio and perform proportional integral control for the burner control valve of the heating furnace according to the compensating amplification coefficient and the integral compensation coefficient, to adjust the opening of the control valve.