Air layer drag reduction ship

Abstract

The embodiment of the invention provides an air layer drag reduction ship which comprises a ship body and an air supply system located in the ship body; the ship body comprises a bottom plate locatedat the bottom of the ship body, the air supply system comprises a plurality of pipelines and a plurality of pressure stabilizing cavity arrays, and the plurality of pressure stabilizing cavity arraysare fixed to the inner side of the bottom plate, are connected with the pipeline, and extend in the width direction of the ship body and are arranged in the length direction of the ship body; and eachpressure stabilizing cavity array comprises at least two pressure stabilizing cavities arranged in the width direction of the ship body, and the interval between every two adjacent pressure stabilizing cavities is larger than zero in the width direction of the ship body. The embodiment of the invention provides the air layer drag reduction ship, pressure stabilizing cavities are prevented from blocking ship bottom liquid, discharge of the ship bottom liquid is facilitated, and the stability of the air layer drag reduction ship is improved.

Description

technical field [0001] The invention relates to ship drag reduction and energy saving technology, in particular to an air layer drag reduction ship. Background technique [0002] The use of ship bottom air jet technology to form an air layer on the surface of the hull to reduce the frictional resistance of the hull surface is a new technology used in energy saving and emission reduction of ships at home and abroad. However, at present, there are usually two ways to inject air at the bottom of the ship. One is to set a plurality of holes on the bottom of the ship to connect the air jet pipes to directly inject air, and the other is to weld the air jet box on the outer plate of the ship bottom. hole out. The above two air injection methods have phenomena such as unstable gas flow rate and uneven size of the ejected bubbles, which lead to unsatisfactory air injection effect, reduce the utilization rate of air bubbles, and make it difficult to achieve the expected drag reductio...

AI Technical Summary

Problems solved by technology

The conventional form of the plenum chamber has certain disadvantages: the plenum chamber has a certain height, runs through the transverse direction of the ship, and divides the bottom of the hull into sections along the length of the ship, so that part of the water will be blocked during the discharge of ballast water. It cannot be drained cleanly, which increases the humidity of the bottom space, which is not conducive to the air layer drag reduction components arranged at the bottom; at the same time, it increases the weight of the hull, reduces the load capacity, and reduces the stability of the ship

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