TENSION ADJUSTING APPARATUS, TENSION ADJUSTING METHOD OF MOORING LINE, AND MOORING SYSTEM HAVING THE TENSION ADJUSTING APPARATUS

摘要

The present invention relates to a tension control apparatus for a mooring line, a tension control method for a mooring line, and a mooring system having the tension control apparatus for a mooring line. The present invention enables an offshore structure to control tension through a vertically movable fairlead according to the offshore environmental conditions, enables the continuous operation of the offshore structure, such as a floating production storage offloading (FPSO), extends the fatigue life of a mooring line, and enables a continuous offloading work without a stop by controlling tension through the position control of the fairlead when offloading to another transport ship, such as a tanker and an LNGC. The tension control apparatus for a mooring line comprises: multiple mooring lines which are connected to the offshore structure; a fairlead which is installed to be vertically moved and guides the mooring line; a mooring line tension sensing unit which senses the tension of the mooring liens; a fairlead moving unit which vertically moves the fairlead to control the tension of the mooring lines; and a control unit which controls the fairlead moving unit according to the sensed signal from the mooring line tension sensing unit.