Fire monitoring device for petrochemical production line

The utility model relates to the field of fire monitoring, and discloses a fire monitoring device for a petrochemical production line, which comprises a fixed base fixedly connected with the inner wall of a shell, the shell is provided with an acquisition cover, the inner wall of the shell is provided with a fixed bracket, the fixed bracket is fixedly connected with a sliding rod, and the sliding rod is in sliding connection with a collection box for storing a sensor. A smoke sensor is arranged in the collecting box, the smoke sensor is provided with a temperature sensor, the temperature sensor is provided with a flame sensor, a fan is arranged below the collecting box, the fan is fixedly connected to a motor conveying shaft, the motor conveying shaft is rotationally connected with a gear assembly, and the motor is provided with a motor support. The problems that manual monitoring is limited by the visual field and the number of monitoring devices, blind areas possibly exist, comprehensive monitoring of the w