Icebreaker for breaking ice by using continuation method

Abstract

The invention provides an icebreaker for breaking ice by using a continuation method. The icebreaker comprises a hull, wherein ice breaking devices are separately arranged on two broadsides of the hull; the ice breaking devices comprise first section mechanical brackets, coupling rotators, second section mechanical brackets, hydraulic starting devices and tapered-tip-type structures; the first section mechanical brackets are arranged at the broadsides of the hull; the second section mechanical brackets and the first section mechanical brackets are connected by the coupling rotators; and the tapered-tip-type structures are connected to the second section mechanical brackets. The icebreaker, provided by the invention, for breaking ice by using the continuation method uses the tapered-tip-type structures to give an instantaneous impact force on the vertical section of an ice layer under the action of the hydraulic devices before the icebreaker contacts the ice layer; and the icebreaker can repeatedly hit the ice layer to destroy the internal structure of the ice layer and increase the breakability of the ice layer, thereby reducing the resistance during continuous ice breaking. The icebreaker can also be used for destroying ice floes on two sides of the icebreaker during navigation, thereby reducing the lateral pressure of the ice floes on the broadsides of the hull and reducing the wear-out failure.

Description

technical field [0001] The invention belongs to the technical field of shipbuilding, in particular to an icebreaker for continuous icebreaking. Background technique [0002] In 1864, the Russians refitted a small ship "Pirot" into the world's first icebreaker to keep the route from Kronstadt to Oranienbaum open during the frozen period. The Russian-built "Yermak" icebreaker was the first icebreaker to sail in the Arctic. Since the 19th century, icebreakers have been continuously developed. Icebreakers are service ships used to break the ice on the water surface, open up waterways, ensure ships enter and exit ice-covered ports and anchorages, or guide ships to navigate in ice areas. Most European and American countries are located in extremely cold regions, and the rivers have been frozen for a long time, which is not conducive to the travel of ships. Therefore, these countries attach great importance to the development of icebreaker technology. On the other hand, with th...

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Problems solved by technology

[0004] When the ice layer does not exceed 1.5 meters, the "continuous method" ice-breaking method is adopted, mainly relying on the power of the propeller and the bow to split and smash the ice layer, and can sail 9.2 kilometers per hour in the ice sea. Multiple collisions, not only the ice-breaking efficiency is low, but also the damage to the hull structure is huge

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