ICE BREAKER (VARIANTS), METHOD AND SYSTEM FOR SINGLE-SUPPORTMOORING AND SERVICING SHIPS

摘要

The invention discloses the following transformations: In order to carry out the offshore discharge of a liquid load, mainly oil from a land storage plan t to ocean-going tankers during winter time and ice formation by mooring the tankers to a mooring berth or by a single-support mooring at any time irrespective of a prevailing wind and the state of sea in a more comfortable direction for said mooring berth and in such a way that the tankers can perform a full circle and be loaded with a liquid medium, an ordinary icebreaker (1) comprises a diving station (5) which is arranged on the deck (3) thereof and provided with a diving well (6) in the hull (2) of said icebreaker (1), and a device for protecting the flexible hose (8) of an undersea pipeline against ice. In the first variant, said protecting device is embodied in the form of a cylinder (7) provided with guides (13) which make it movable inside a guiding well (10) embodied in the aft end of the hull (2). In the second variant, the icebreaker (1) comprises a device for protecting the flexible hose (8) of the undersea pipeline against ice embodied in the form of a pontoon (15) which is provided with a service well (16) for said flexible hose (8), said device being arranged on the deck (4) and secured for the sea . The inventive system forsingle-support mooring and servicing ships comprises the inventive icebreaker (1) for the offshore discharge of oil. A mooring ro pe and a hose for transporting a fluid medium are embodied in the form of an integral hose-rope (28). The inventive method for single-support mooring and servicing ships, mainly tankers (9) is carried out with the aid of the inventive icebreaker (1) and the hose-rope (28).