Fire monitoring and blocking system for VOCs discharge pipeline

The invention discloses a fire monitoring and blocking system for a VOCs discharge pipeline. Comprising a ventilation component (101), a group of water curtain nozzles (102) are mounted on the inner wall of the ventilation component (101), and each water curtain nozzle (102) is connected with a water supply pipeline (103); a linear fire temperature detector (107) is installed on the ventilation part (101), the two ends of the linear fire temperature detector (107) are connected into a detector terminal box (108) and a detection signal processor (109) respectively, the detection signal processor (109) processes feedback signals of the detector (107) in real time, a processing result is transmitted to a monitoring control unit (111), a temperature sensor (110) is installed on the inner wall of the ventilation part (101), and the temperature sensor (110) is connected with the monitoring control unit (111). The control unit (111) is connected with the monitoring control unit (111); and a monitoring signal is acce