DCS pressure stabilization control method for chlorine system in front of synthetic furnace

The invention provides a DCS pressure stabilization control method for a chlorine system in front of a synthetic furnace, and belongs to the technical field of system pressure control, the DCS pressure stabilization control method for the chlorine system in front of the synthetic furnace comprises the following steps: a pressure stabilization control setting stage: controlling a control mode of an automatic control valve of the synthetic furnace and setting parameters of the chlorine system in front of the synthetic furnace through a DCS; and a pressure stabilization control execution stage: judging the in-use or standby state of the synthetic furnace, and realizing the correlation between the self-control valve and the ratio through logic control, so as to realize the automatic control of the self-control valve. According to the DCS pressure stabilization control method for the front chlorine system of the synthetic furnace, rapid matching of the proportion of hydrogen and chlorine in an accident state is ac