A bow guide tube device

A technology of diversion tube and bow, which is applied in ship propulsion, ship parts, ship construction, etc. It can solve the problems of slapping bow, easy impact, large friction resistance between ship bottom and water, etc., so as to save forward power, reduce friction resistance, reduce The effect of slap damage

Active Publication Date: 2016-03-02
NANTONG COSCO KHI SHIP ENG
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AI Technical Summary

Problems solved by technology

[0002] When a fat ship is sailing, there will be a lot of water flowing to the bow, and a large amount of water will easily impact and beat the bow, which will bring great resistance to the ship's navigation. At the same time, the beating will easily damage the bow structure. , the bottom of the ship and the water produce a large frictional resistance, which brings great resistance to the ship's navigation

Method used

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specific Embodiment

[0011] A nozzle device for the bow of a ship. The nozzle device is composed of a hollow nozzle 1 with openings at both ends and a plurality of compressed air tubes 2 arranged in the nozzle 1. The nozzle device is arranged at the bow of the ship, centered Position, when the ship is sailing, the water flowing to the bow flows to the stern through the diversion tube device, and flows into the water, which reduces the resistance of the water flow to the bow. The radial direction of the diversion tube 1 is flexible and curved to avoid the loss of pressure head. The entrance of 1 is set at the bow design waterline, and the exit is set at the front end of the collision bulkhead. The compressed air pipe 2 is distributed on the semicircular inner wall of the draft tube 1, and the surface is provided with many dense small holes for releasing air into the draft tube 1, forming a water-air mixture in the draft tube 1, and the water After the air mixture flows out of the draft tube, the ai...

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Abstract

The invention discloses a guide pipe device for a stem. The guide pipe device comprises a hollow guide pipe with openings at two ends, and a plurality of compressed air pipes disposed in the guide pipe. The guide pipe device is arranged at a central head of a ship. Compared with the prior art, the guide pipe device has the advantages that water from the stem flows to the bottom of the ship through the guide pipe device, resistance produced by impact of the water on the stem is reduced, moving power of the ship is saved, and panting damage of the stem by the water is reduced. In addition, the bottom of the ship is subjected to air lubrication by air bubbles released in the compressed air pipes, friction between the bottom of the ship and the water is reduced, and moving power of the ship is further saved.

Description

technical field [0001] The invention relates to a ship diversion device, in particular to a bow diversion tube device. Background technique [0002] When a fat ship is sailing, there will be a lot of water flowing to the bow, and a large amount of water will easily impact and beat the bow, which will bring great resistance to the ship's navigation. At the same time, the beating will easily damage the bow structure. , the bottom of the ship and the water produce greater frictional resistance, which brings great resistance to the navigation of the ship. Contents of the invention [0003] Purpose of the invention: The purpose of the present invention is to make up for the deficiencies in the prior art and provide a draft tube device that can guide the water flow at the bow to the bottom of the ship and reduce the friction between the bottom of the ship and the water. [0004] Technical solution: a draft tube device for the bow, the draft tube device is composed of a hollow d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63H5/15
Inventor 莫中华薛国良刘灿波潘志远徐宏伟王同山
Owner NANTONG COSCO KHI SHIP ENG
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