| 摘要 |
The present invention relates to an air injecting device protruding from a bottom of a vessel toward seawater. The purpose of the present invention is to easily install and disassemble an air injecting device on the bottom of the vessel, improve water-tightness on an air path, improve an efficiency of saturability by air injection in the water, form an air bubble layer along a surface of the bottom of the vessel, and efficiently reduce friction resistance of the vessel. The air injecting device comprises: an air injecting module installed in the bottom of an entrance of the vessel having a plurality of air paths inside, and a plurality of air injection holes connected to the air paths connected to the outside; and an air supply unit connected to the air injecting module by passing through the bottom of the vessel, and supplying air into the air path of the air injecting module. The air injecting module comprises: a base plate welded on the bottom of the vessel having the air supply unit passing through the same; an air injection plate including the air path connected to the air supply unit inside, and connected to a mounting unit of the base plate and the plurality of air injection holes connected to the air path; and a connection pin including a sealing function by being installed between the base plate and the air injection plate. |
