Phosgene preparation device based on DCS automatic control system

The utility model provides a phosgene preparation device based on a DCS (Distributed Control System) automatic control system, which comprises a first feed pipe, a second feed pipe, a main reactor and a protection reactor, the first feed pipe and the second feed pipe are respectively connected with the main reactor, the main reactor is connected with the protection reactor, the phosgene preparation device further comprises the DCS automatic control system, a heat exchanger and a water pump, the first feeding pipe and the second feeding pipe are provided with temperature sensors, pressure sensors, flow meters and flow valves, the DCS automatic control system comprises a control unit and a management unit, and the controller receives data sent by the first flow meter, the second flow meter, the first temperature sensor, the second temperature sensor, the first pressure sensor and the second pressure sensor. And the information is transmitted to the management unit. According to the utility model, the automatic