Operation security control system for delay-coking coke tower

The utility model provides an operation security controls system for a delay-coking coke tower, which is mainly composed of a main control system, an inside operation man-machine terminal system, an outside operation man-machine terminal system, field equipment, a valve and a field measurement component, wherein the field measurement component is connected with the main control system through a cable, and detection signals are communicated to the main control system; the field equipment and the valve are connected with the outside operation man-machine terminal system through a control cable, and the outside operation man-machine terminal system is connected with the main control system through a multi-core control cable or a communication cable; and the inside operation man-machine terminal system is connected with the main control system through a communication cable. The operation security control system provided by the utility model can effectively prevent erroneous judgments of operators in a control room and erroneous judgments of operators on site, and prevent the equipment and the valve from sending false signals which result in erroneous judgments of the operators and security incidents caused by automatically executed operations, thereby improving the intrinsic security of operations of the coke tower.