Resistance reducing and energy saving type rudder blade

An energy-saving, rudder blade technology, which is applied in the direction of steering with rudder, can solve the problems of limited research on rudder energy saving and drag reduction, and achieve the effects of reducing rudder cavitation, reducing mutual interference, and reducing lateral force loss.

Inactive Publication Date: 2016-03-02
CHONGQING JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The drag reduction and energy saving technology of marine rudders can solve this problem very well. However, the current research on the energy saving and drag reduct

Method used

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  • Resistance reducing and energy saving type rudder blade
  • Resistance reducing and energy saving type rudder blade
  • Resistance reducing and energy saving type rudder blade

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] Such as Figure 1 to Figure 6 As shown, a drag-reducing and energy-saving rudder blade includes a hollow rudder blade main body. 6. The air chamber 5 is connected to the air intake pipe 9, and an exhaust hole 4 is provided on the outer surface of the air chamber 5, and the ballast water chamber 6 is connected to the air chamber 5 ballast water tank with the water inlet pipe 8 and the water outlet pipe 12 6 Ballast water tank 6 Water inlet pipe 8 Ballast water tank 6 Air tank 5 Air inlet pipe 9. The main body of the rudder blade is welded by flat steel 15, and a plurality of steel plates are welded on the main body of the rudder blade to divide it into an air chamber 5 and a ballast water tank 6. A pressure sensor is installed in the air chamber 5, and a pressure sensor is installed in the ballast water tank 6. pressure sensor 13.

[0027] In the present inven...

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Abstract

The invention discloses a resistance reducing and energy saving type rudder blade which comprises a hollow rudder blade body. The two ends of the rubber blade body are connected with a top plate and a bottom plate respectively to form a sealing cavity. An air cabin and a water ballast tank are arranged in the sealing cavity, water enters the water ballast tank through a water inlet pipe, and the air cabin is inflated through an air inlet pipe. Air is exhausted outwards through the air cabin, and after microbubbles are formed on the surface of a rudder, the viscidity of mixed fluid containing the microbubbles is greatly lower than that of fluid free of microbubbles, and frictional resistance is remarkably reduced. Meanwhile, the speed distribution of the fluid in a boundary layer is also influenced by the microbubbles, the thickness of the boundary layer is increased at inflow velocity, the frictional resistance is reduced, and the resistance reducing effect is obvious.

Description

technical field [0001] The invention relates to a drag-reducing and energy-saving rudder blade, which belongs to the field of ships. Background technique [0002] As the carrier with the largest proportion of carrying capacity in transportation, the energy-saving effect of ships has a great impact on the national economy. The research on energy-saving issues has become one of the long-term strategic tasks in the development of my country's national economy. In the process of transportation, if the ship is sailing on the waves with low frequency under high sea conditions, it is very easy to have the phenomenon of swaying, and it is easy to be disturbed by the wave laterally, and the rudder effect is also easy to lose. Due to this situation frequent marine accidents have caused significant economic and property losses. In order to avoid similar incidents, in addition to improving the driver's sense of responsibility, it is also necessary to fully grasp the ship's maneuverabili...

Claims

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Application Information

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IPC IPC(8): B63H25/38
CPCB63H25/38
Inventor 袁培银赵宇雷林孙鹏赵藤孙勇敢
Owner CHONGQING JIAOTONG UNIVERSITY
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