Anti-corrosion structure of air supply system for air layer drag reduction ship
A gas supply system and gas layer technology, applied in the direction of ship hull, ship parts, ship hull design, etc., can solve problems such as easy corrosion, and achieve the effect of preventing corrosion, ensuring long-term normal operation, and good anti-corrosion effect.
Pending Publication Date: 2020-05-01
上海长江轮船有限公司 +2
View PDF0 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The ventilation pipes near the nozzle holes, the ship bottom plate and other structures are in an oxygen-enriched environment when the air layer drag reduction system is working, and when the air layer drag reduction system is not working, the seawater backflow is in a humid environment, so it is very easy to corrode
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0032] The anti-corrosion structure of the air supply system proposed by the present invention for the air layer drag reduction ship will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be more apparent from the following description and claims. It should be noted that the drawings are all in a very simplified form and use imprecise ratios, which are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention.
[0033] An embodiment of the present invention provides an anti-corrosion structure of an air supply system for an air layer drag reduction ship, which includes a ventilation pipeline with an opening connected to the bottom plate of the ship, an opening / closing unit, and a pressure stabilizing chamber. The opening / closing unit is provided on the ventilation line. The bottom plate of the ship is provided w...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an anti-corrosion structure of an air supply system for an air layer drag reduction ship. The anti-corrosion structure comprises a ventilation pipeline with an opening connected to a ship bottom plate, an opening / closing unit and a pressure stabilizing cavity. The opening / closing unit is arranged on the ventilation pipeline. The pressure stabilizing cavity is formed betweenthe ventilation pipeline and the ship bottom plate, the first end of the pressure stabilizing cavity communicates with an opening of the ventilation pipeline, and the second end of the pressure stabilizing cavity is fixedly connected with the ship bottom plate. And an air injection part corresponding to the pressure stabilizing cavity is arranged on the ship bottom plate and used for injecting air in the pressure stabilizing cavity. The pressure stabilizing cavity and the ventilation pipeline form air space when the opening / closing unit is in a closed state, and communication between the airspace and the interior of the ship body is blocked. When the air supply pipeline does not convey air, the opening / closing unit is closed, seawater is limited in the air space and cannot flow to otherplaces, and the seawater is prevented from corroding other places of the ship body.
Description
technical field [0001] The invention belongs to the field of anticorrosion of ships, and in particular relates to an anticorrosion structure of an air supply system used for an air layer drag reduction ship. Background technique [0002] The air layer drag reduction ship uses the air layer drag reduction technology, and through a specially designed device, it ventilates to the bottom of the ship, forms and maintains a layer of air layer on the bottom of the ship, isolates the bottom surface of the ship from water, reduces the wet surface area, and can significantly reduce the resistance, reducing fuel consumption. [0003] In the gas layer drag reduction technology, the gas generated by the gas source is transported to various positions on the bottom of the ship by pipelines, and is sprayed out of the bottom of the ship through nozzle holes. The ventilation pipes near the nozzle holes, the ship bottom plate and other structures are in an oxygen-enriched environment when the...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B63B1/38B63B17/00
CPCB63B1/38B63B17/00B63B2001/387Y02T70/10
Inventor 姚国军高丽瑾邓凌陈少峰李胜周伟新黄国富恽秋琴郭银发赵璐夏灏超王昌鹏吴赞王敬
Owner 上海长江轮船有限公司