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Offshore floating vessel and a method of operating the same

  • US 10,301,152 B2
  • Filed: 03/28/2017
  • Issued: 05/28/2019
  • Est. Priority Date: 04/18/2013
  • Status: Active Grant
First Claim
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1. An offshore floating vessel comprising:

  • a hoisting system adapted for suspending a load attached to a connecting device of the floating vessel and for lowering or raising a load connected to the connecting device from the floating vessel to or from the sea floor, the hoisting system comprising a drive for moving the connecting device;

    a plurality of hydraulic emergency brakes configured to inhibit motion of the connecting device relative to the floating vessel when the brakes are in an engaged state;

    a hydraulic system configured to maintain the emergency brakes in a disengaged state by applying a hydraulic pressure to each of said emergency brakes by means of a pressurized fluid;

    wherein the hoisting system is configured to be selectively operated at least in a hoisting mode and in an active heave compensation mode, wherein the hoisting system is configured to perform an active heave compensation when operated in the active heave compensation mode and to operate without active heave compensation when operated in the hoisting mode;

    wherein each emergency brake of the plurality of hydraulic emergency brakes has associated with it a separate accumulator reservoir in the hydraulic system.

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