A variable stern structure suitable for ice breaking operations at the stern of an icebreaker

Abstract

The invention discloses a variable stern structure suitable for ice-breaking operations at the stern of an ice-breaking ship, including an ice-breaking cone, an ice-breaking reamer and a water jet system; There are several ice-breaking cones on the side; the ice-breaking reamer is connected to the installation groove on the reinforcement plate through a telescopic rotating assembly, and the reamer head protrudes from the outlet hole on the ice-breaking cone disc; the water pump in the water jet system is installed on the bow side of the ship It is also connected to the booster pump through pipelines, the booster pump and the high-speed jet water gun are connected through a high-pressure water supply pipe, and the high-speed jet water gun is arranged on the support mechanism at the rear end of the stern. The invention utilizes a combination of multiple structures to break ice, which can not only ensure the excellent continuous ice-breaking ability of polar ships when sailing in the stern direction, but also realize auxiliary ice removal and navigation drag reduction at the same time, improve ice-breaking efficiency, and adapt to different navigation needs.

Description

technical field [0001] The invention belongs to the technical field of polar ship design and manufacture, and in particular relates to a variable stern structure suitable for icebreaking operations at the stern of an icebreaker. Background technique [0002] With the continuous advancement of exploration technology, the frequency of scientific expeditions to the Arctic and Antarctic regions is increasing day by day. Especially in the context of the scarcity of non-biological resources such as oil and gas in the world, the drilling and production of oil and gas resources in polar regions has gradually become the focus of attention of countries all over the world. As an important tool for opening waterways and rescuing ships, icebreakers have always been the focus of attention in the industry for their icebreaking capabilities and navigation safety. When an icebreaker encounters dangerous ice conditions during navigation, such as icebergs or ice ridges, it usually needs to ma...

AI Technical Summary

Problems solved by technology

The icebreakers in the prior art mainly have the ability to break ice at the bow and side, or make adaptive improvements to the hull structure to improve the icebreaking sailing ability, but have not made effective structural improvements to the stern structure, and the icebreaker forcibly stern direction The difficulty is high, and the ice-breaking device cannot adjust the ice-breaking angle in real time according to different ice conditions; in addition, the existing ice-breaking device is mainly a purely mechanized structure, which is forced by the rigid collision between the mechanical structure and the ice layer. In the ice-breaking process, the overall ice-breaking speed is relatively slow, and the ice-breaking efficiency needs to be further improved

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