Ship air layer drag reduction system with air cavity inflation sealing device

Abstract

The invention discloses a ship air layer drag reduction system with an air cavity inflation sealing device, and relates to the technical field of ship drag reduction. The ship air layer drag reduction system comprises an inflation system, an air output port of the inflation system communicates with a sealing air bag through an air bag inflation pipeline, and the sealing air bag is arranged in an air cavity; a bottom plate of the air cavity is a ship bottom plate, and air spraying holes are formed in the ship bottom plate. The inflation system is communicated with an air cavity area outside the sealing air bag through an air cavity air supply pipeline; a first remote control valve is arranged on the air bag inflation pipeline; a second remote control valve is arranged on the air cavity air supply pipeline; the air bag inflation pipeline further communicates with an atmosphere connecting pipeline, and a third remote control valve is arranged on the atmosphere connecting pipeline. The problem that sea water easily carries marine organisms to enter the air cavity when the air layer drag reduction system stops working is solved.

Description

technical field [0001] The invention relates to the technical field of ship drag reduction, in particular to a ship air layer drag reduction system with an air chamber inflatable sealing device. Background technique [0002] Ship gas drag reduction technology is a technology that reduces the frictional resistance of the ship's surface by injecting air into the bottom of the ship to form a stable gas lubrication layer during the ship's travel. The ship's air layer drag reduction system includes an air supply system, an air cavity and an air injection hole, and the air injection hole is arranged on the bottom plate of the ship and communicated with the air cavity. When the ship is running, the air supply system supplies air to the air cavity, and the gas in the air cavity is ejected to the outside of the hull through the jet holes to form a gas lubrication layer that can reduce resistance at the bottom of the hull. [0003] When the ship is moored at the dock or encounters se...

AI Technical Summary

Problems solved by technology

In addition, due to the corrosiveness of seawater, it will corrode the hull steel plate and air cavity. If it is soaked in seawater for a long time, it will cause corrosion and cracking of the air cavity and bottom plate, which will affect the structural safety of the ship.

[0004] Therefore, there is an urgent need for an air cavity inflatable sealing device and a ship suitable for the ship's air layer drag reduction system to solve the problem that seawater enters the air cavity through the jet hole

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