Container ship propeller double-sleeve energy-saving device

A technology for container ships and energy-saving devices, which is applied in the construction of transmissions, hulls, and ships using synchronous propulsion components, which can solve problems such as wasting energy, changing the state of bubbles, and resistance, and achieve the effects of reducing contact area and frictional resistance

Pending Publication Date: 2022-07-08
JIANGSU YANGZI XINFU SHIPBUILDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing air lubrication system, it is impossible to change the state of air bubbles at different speeds of container ships through devices. Under different hull speeds and air bubble shapes, the coverage of air bubbles on the bottom of the ship will change, and it cannot adapt to different speeds to produce different drag reduction. Effect, under the premise of uniform bubble effect, more energy will be wasted at different speeds. At different speeds of container ships, the flow speed and flow state of the water flow through the stern are different, and the fixed front energy-saving components cannot realize To adjust the flow state of the water flow at different speeds, the device itself will generate resistance under the premise of a relatively fast speed, and it is impossible to improve the energy-saving efficiency of the ship

Method used

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  • Container ship propeller double-sleeve energy-saving device
  • Container ship propeller double-sleeve energy-saving device
  • Container ship propeller double-sleeve energy-saving device

Examples

Experimental program
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Effect test

Embodiment 1

[0029] A container ship propeller double-set energy-saving device, such as Figure 1-Figure 9As shown, it includes a high-efficiency propeller 2, and the high-efficiency propeller 2 is sealed and rotatably installed at the stern of the container ship 1. The stern of the container ship 1 is provided with a stern seal installation part, and the rotating shaft of the high-efficiency propeller 2 passes through the stern seal installation part. The stern The sealing installation part is provided with a front energy-saving part. The stern sealing installation part is used for the high-efficiency propeller 2 and the energy-saving part to be installed together. The front energy-saving part is used for uniform inflow of the high-efficiency propeller 2. With the coordination of energy-saving components, the inflow state of the front energy-saving components can be adjusted to produce different flow equalization effects at different speeds. The lower side of the front part of the containe...

Embodiment 2

[0032] On the basis of Example 1, as figure 2 and Figure 4 As shown, the stern sealing installation component includes a stern installation shell 3, which is fixedly arranged at the stern of the container ship 1, and the upper part of the stern installation shell 3 is provided with two limit chutes. The openings of the limit chutes are all set backward, and the limit chutes open to the rear prevent the water flow from producing resistance to the stern mounting shell 3. The shape of the stern mounting shell 3 is set to a streamline shape that decreases from front to back, so that Reduce the influence of the stern water flow on the hull movement, make the force at the stern even and ensure the dispersion of the force, the rear part of the stern installation shell 3 is fixedly connected with a sealing casing 4, the sealing casing 4 and the shaft of the high-efficiency propeller 2 Rotating connection, the front part of the stern installation shell 3 is fixedly installed with a ...

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Abstract

The invention relates to the field of ship transportation energy conservation, in particular to a container ship propeller double-sleeve energy-saving device. The technical problems that the form of bubbles generated by an air lubricating system cannot be adjusted, and a front energy-saving device is different in energy-saving effect and even generates negative effects at different navigational speeds are solved. The invention provides a container ship propeller double-sleeve energy-saving device. The container ship propeller double-sleeve energy-saving device comprises an efficient propeller and the like. The efficient propeller is installed on the tail portion of the container ship in a sealed and rotating mode, the stern sealing installation component is arranged on the tail portion of the container ship, the front energy-saving component is arranged on the stern sealing installation component, and the bubble lubricating component is arranged on the front portion of the container ship. The front energy-saving component is matched with the stern sealing installation component, the pre-rotational flow state and the inflow effect generated after water flow passes through the front energy-saving component are changed, the part, making contact with the container ship, of the water surface is isolated through the bubble lubricating component, and the frictional resistance of the water surface to the ship bottom is reduced.

Description

technical field [0001] The invention relates to the field of ship transportation energy saving, in particular to a container ship propeller double-set energy-saving device. Background technique [0002] Large container ships are an important participant in shipping. With the continuous increase in the deadweight of large container ships, their energy conservation and emission reduction are more and more important to ship owners. The existing centralized container ships mostly use the air lubrication system with the front energy-saving components of the propeller. , so that the friction between the hull and the water surface is reduced. At the same speed, the thrust provided by the propeller to the hull is reduced, and the water flow in front of the propeller is uniform and provides boosting force. Under the premise of providing the same thrust, Consume less energy. [0003] In the existing air lubrication system, it is impossible to change the state of the bubbles at differ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H5/07B63B1/38B63H23/32
CPCB63H5/07B63B1/38B63H23/321B63H2023/327Y02T70/10
Inventor 徐智王立平沈强昇龚爱军张鹏
Owner JIANGSU YANGZI XINFU SHIPBUILDING CO LTD
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