HYDRAULIC MONITORING SYSTEM OF HIGH PRESSURE DIVERTER AND DIVERTER MONITORING METHOD USING THE SAME

摘要

The present invention relates to a monitoring system of a diverter that operates when a predetermined or higher pressure is applied to a blow out preventer (BOP), a flow line seal hydraulic line connected to the diverter and into which the pressure applied to the BOP is introduced; locking/unlocking hydraulic lines and diverter open/close hydraulic lines; The flow line seal hydraulic line, the locking/unlocking hydraulic line, and the diverter open/close hydraulic line are installed respectively on the flow line seal hydraulic line, the locking/unlocking hydraulic line, and the diverter open/closed hydraulic line. first to third pressure sensors for sensing internal pressure; It is installed on the flow line seal hydraulic line, locking/unlocking hydraulic line, and diverter open/close hydraulic line, respectively, to connect the flow line seal hydraulic line, locking/unlocking hydraulic line, and diverter open/close hydraulic line. first to third valve units for opening and closing; The flow line seal hydraulic line, locking/unlocking hydraulic line, and locking/unlocking hydraulic line received by the first to third pressure sensing sensors receive the pressure of the diverter open/close hydraulic line a control unit for maintaining the pressure of the locking hydraulic line and the diverter open/closed hydraulic line at a set value; and opening and closing of the first to third valve units to maintain the pressures of the flow line seal hydraulic line, the locking/unlocking hydraulic line, and the diverter open/closed hydraulic line at the set values, operated under the control of the control unit. a valve control unit for automatically controlling each; The control unit lowers the pressure inside the diverter through a control signal instructing the opening of the flow line seal hydraulic line and the diverter close hydraulic line, respectively, which the first valve unit and the third valve unit are responsible for. characterized in that In addition, the present invention relates to a monitoring method of a diverter operated when a predetermined or more pressure is applied to a blow out preventer (BOP), and a flow line sealed hydraulic line connected to the diverter, a locking/unlocking hydraulic line, and a The butter open/close hydraulic line and the internal pressure of the diverter chamber are sensed by the first to fourth pressure sensors and transmitted to the control unit in real time, so that control of each hydraulic line is implemented, and a pressure above a certain level is applied to the BOP. In this case, the diverter locking step of opening the locking hydraulic line of the diverter to control the pressure on the locking hydraulic line to a set pressure range; a diverter flow line seal operation step of closing the locking hydraulic line and simultaneously opening the flow line real hydraulic line to control the pressure on the flow line real hydraulic line within a set pressure range; a pressure release step of lowering the pressure inside the diverter chamber by opening the diverter close hydraulic line while keeping the flow line seal hydraulic line open and controlling the pressure on the diverter close hydraulic line within a set pressure range; and a diverter monitoring step of monitoring the pressure inside the diverter chamber in the control unit to determine whether to maintain the pressure release step; It is characterized in that it includes. As a result, the diverter with stability and reliability is operated by monitoring the operation of the diverter installed in the field in real time, and at the same time, when an abnormality occurs, each valve unit is automatically controlled to set the pressure applied to the diverter. By controlling the following, various safety accidents can be prevented in advance.