Remote monitoring alarm control system of pipeline cutoff device

The invention relates to a safety protection facility for a mining and transportation pipeline, in particular to a remote monitoring alarm control system of a pipeline cutoff device. The remote monitoring alarm control system of the pipeline cutoff device comprises a wellhead safety hydraulic cutoff device and a remote executing mechanism, wherein the remote executing mechanism communicates with ahydraulic control system of a wellhead safety hydraulic cutoff device, the flow of hydraulic oil in the hydraulic control system is remotely controlled, high-pressure hydraulic oil in the hydraulic control system is forced to return to an oil storage tank, and a hydraulic cutoff valve loses supporting of the high-pressure hydraulic oil in the hydraulic control system. A flat gate valve forming the hydraulic cutoff valve is closed under the action of an internal spring of the flat gate valve, so that the cutoff of an air source is achieved, the structure is simpler and the closing is faster. According to the actual si