Environmental-friendly and energy-saving tail icebreaking type multipurpose heavy lift carrier

Abstract

The invention provides an environmental-friendly and energy-saving tail icebreaking type multipurpose heavy lift carrier comprising a heavy lift carrier body and propellers mounted on the heavy lift carrier body. An icebreaking part is arranged on the stern of the heavy lift carrier body and used for butting against an ice layer and crushing the ice layer. The propellers can drive the heavy lift carrier body to travel toward the stern direction, and the propellers are arranged on the stern of the heavy lift carrier body. The propellers are the full circle swinging contra-rotating propeller propellers, and the prow of the heavy lift carrier body is provided with a bulbous bow. When water surface freezes, the propellers are utilized to drive the heavy lift carrier body to travel toward the stern direction, and the icebreaking portion is utilized to crush the ice layer, so that the environmental-friendly and energy-saving tail icebreaking type multipurpose heavy lift carrier can be used as an icebreaker. When the water surface does not freeze, the propellers can be utilized to drive the heavy lift carrier body to travel toward the prow direction, and the bulbous bow and a contra-rotating propeller both have obvious energy-saving effect, energy consumption is effectively reduced, and the environmental-friendly and energy-saving tail icebreaking type multipurpose heavy lift carrier also can be used as a normal heavy lift carrier, so that the utilization rate of the tail icebreaking type multipurpose heavy lift carrier is greatly increased, and using cost is reduced.

Description

technical field [0001] The invention relates to the technical field of shipbuilding, in particular to a green energy-saving stern ice-breaking multi-purpose heavy-lift ship. Classified according to China Classification Society's class notation standard, its basic ship type is "ordinary dry cargo ship"; it can carry dry general cargo, bulk cargo, and containers, and is equipped with large cranes and large-open warehouses to load and unload large electromechanical equipment and bulky cargo by itself ; It also has the capability of autonomous ice-breaking navigation. Background technique [0002] The Bohai Rim and Liaodong Peninsula are economically developed areas in northern my country with strong growth. Convenient sea transportation is one of the favorable basic conditions for the economic development of these regions. A modern economy demands high-volume, punctual, reliable freight services. However, in areas such as the Bohai Rim and the Liaodong Peninsula, extreme wea...

AI Technical Summary

Problems solved by technology

[0010] This is because the relevant ships in the prior art have the following major defects: 1. The scissor-shaped bow design that can be used for icebreaking in winter consumes a lot of energy during normal navigation in spring, summer and autumn, and the market competitiveness is poor

At the same time, the bow of the ship below the waterline has been cut off a lot, resulting in less space for the arrangement of equipment in the bow, and a lot of buoyancy loss, making it difficult to balance the floating state.

2. In order for a large cargo ship to break ice independently under the propulsion of the main engine and propeller at the stern, it is necessary to allocate a main engine with a power exceeding the normal navigation demand; this will cause power waste and efficiency decline during normal navigation, so merchant ship owners are worried that investment losses will not be enough Build this type of multi-purpose cargo ship with "autonomous icebreaking capability"

3. The hull of an ordinary cargo ship is huge, and the method of propulsion of the tail to break the ice makes the whole huge hull squeeze through the ice layer, which makes the hull easy to damage

At the same time, due to the friction between the ice and the hull, the actual ice-breaking thrust transmitted from the tail thrust to the bow is small, and the ice-breaking efficiency is low.

And it cannot effectively deal with ice piles and snowdrifts

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