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An offshore loading system especially suited for transferring petroleum products from a floating production vessel to a marine tanker. The system comprises a cantilevered support boom mounted on the deck of the production vessel, a fluid conduit extending generally horizontally along the boom from a

An offshore loading system especially suited for transferring petroleum products from a floating production vessel to a marine tanker. The system comprises a cantilevered support boom mounted on the deck of the production vessel, a fluid conduit extending generally horizontally along the boom from a riser on the deck of the production vessel, an articulated loading arm connected to the outboard end of the horizontal conduit, and a multiple swivel joint for connection between the outboard end of the loading arm and a pipe manifold on the deck of the marine tanker. The inboard end of the loading arm is connected by swivel joints to the outboard end of the horizontal conduit to facilitate pivoting the loading arm in both a vertical plane and a horizontal plane. An inboard drive sheave secured to the inboard end of the loading arm is connected to a support cable for raising and lowering the arm, and a pantograph drive system of sheaves, cables and hydraulic cylinders interconnects the inboard drive sheave and an outboard sheave for raising and lowering an outboard section of the arm.

대표청구항 ▼

A loading system for transferring fluid from one fluid handling means to another and to provide for relative movement between the different handling means, said system comprising: a support structure for mounting on a first fluid handling means; a horizontal support boom having an inboard end connec

A loading system for transferring fluid from one fluid handling means to another and to provide for relative movement between the different handling means, said system comprising: a support structure for mounting on a first fluid handling means; a horizontal support boom having an inboard end connected to said support structure; a boom conduit member mounted along said boom; means for coupling the inboard end of said boom conduit member to said first handling means; an articulated loading arm having one end thereof pivotally connected to the outer end of said boom conduit member for movement about a first horizontal axis; an inboard sheave; means for mounting said inboard sheave for rotation about said first horizontal axis with said inboard sheave fixed to said loading arm; a tower sheave rotatably mounted on said support structure; a loading arm support cable; means for connecting said support cable between said inboard sheave and said tower sheave including a plurality of idler sheaves, means for pivotally mounting a first idler sheave on the outer end of said support boom adjacent said inboard sheave, means for mounting a second idler adjacent said tower sheave, means for connecting a first end of said support cable to said inboard sheave, said support cable being trained around said inboard sheave and trained around a portion of said first and said second idler sheaves, and means for connecting a second end of said support cable to said tower sheave; means for rotating said tower sheave to rotate said inboard sheave and to pivotally move said loading arm about said first horizontal axis; and means for connecting the outboard end of said loading arm to a second fluid handling means.