Design of Heating Furnace Temperature Control System Based on Feedforward Control
Abstract：Furnace is a heating equipment that wildly used in oil refining, and chemical fiber industry. The material flow in the tube installed in the furnace is heated to the required temperature. The material temperature is the basic control requirements, but for the existing energy crisis, improving the thermal efficiency of furnace, energy saving through better furnace optimal control is more meaningful.
In view of the various characteristics of the furnace inside the furnace, taking into account the furnace inside the variable too much, cut will change over time, and is a nonlinear change, by studying the reality of the situation at home and abroad, and it and domestic and foreign Is used to effectively control the important control parameters in the control system of the furnace, including the outlet temperature of the heated material, the ratio of air to fuel, and the pressure inside the furnace. Because of the energy crisis in today's society, we can meet the requirements of the process and reduce the energy consumption. In order to make the heating furnace real energy conservation and reduce the emission, we need to heat Furnace to make better control. So I designed a program, and the simulation of this program with Matlab, get the final results, with this result to prove that the program can be implemented, the effect is also ideal, and the program also makes the furnace efficiency High, while solving the time lag of the furnace.
Keywords: Double-crossing-limiting control; Feedforward-feedback control; energy saving; automatic control system of heating furnace; consumption reduction