Combustor exhaust safety valve

The utility model provides a combustor exhaust safety valve which comprises a main valve body, an air cylinder, a main rocker arm, an auxiliary rocker arm, an adjustable connection rod and a valve cover. The main valve body is arranged at an outlet of a combustor exhaust pipeline. The air cylinder is arranged outside the outlet of the combustor exhaust pipeline. A push rod of the air cylinder is hinged to the front end of the adjustable connection rod. The tail end of the adjustable connection rod is hinged to the main rocker arm. The auxiliary rocker arm is fixedly connected with the valve cover. The valve cover is hinged to the upper edge of the main valve body. The safety valve is simple in structure, convenient to install, high in controllability and capable of conducting real-time control according to the actual gas discharge amount, natural discharge and forced gas discharge are achieved, safety operation of a combustor is guaranteed, the normal operation of a system is guaranteed, and the combustion quality and efficiency are improved.