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Sweepback wing type propelling efficiency improving device

A technology of propulsion efficiency and swept wings, applied in the direction of rotary propeller, rotary propeller, etc., can solve the problem of weakening energy saving effect, and achieve the effect of good energy saving effect, overcoming drag reduction, and short design cycle.

Active Publication Date: 2020-11-24
SHANGHAI SHIP & SHIPPING RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] With the improvement of the overall performance of the ship, the current mainstream straight vane front guide wheels have a tendency to weaken the energy saving effect to a certain extent. The adverse effect of weakening the propeller excitation force on the front guide wheel is not taken into account

Method used

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  • Sweepback wing type propelling efficiency improving device
  • Sweepback wing type propelling efficiency improving device
  • Sweepback wing type propelling efficiency improving device

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Embodiment Construction

[0022] The swept wing propulsion efficiency improvement device of the present invention is as Figure 1-Figure 2 As shown, the same as the prior art, it also includes the propeller 1 located at the stern and the front guide wheel 2 located in the front area of ​​the propeller 1. The difference is that the front guide wheel 2 includes several pieces of swept back Wing guide vanes 3 and arc ducts 4 installed on the tips 31 of the guide vanes 3, each swept wing guide vane 3 includes front wings 32 arranged radially along the stern axis 6 of the hull 5 and connected to the hull 5, The rear wing 33 is connected to the upper end of the front wing 32 and is inclined backward (that is, toward the propeller 1 located behind). The front wing 32 is connected to the hull 5 by welding, and the connection position is near the stern shaft 6 of the hull 5. The front wing 32 is relatively far away from the propeller 1, and the distance between it and the surface of the propeller 1 is 15%-25% o...

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Abstract

The invention discloses a sweepback wing type propelling efficiency improving device. The sweepback wing type propelling efficiency improving device comprises a propeller arranged at a stern and a front guide wheel arranged in front of the propeller; the front guide wheel comprises a plurality of sweepback wing type guide vanes and arc-shaped guide pipes installed at the tips of the guide vanes, each guide vane comprises a front wing arranged in the radial direction of a stern shaft of a ship body and connected with the ship body, and a rear wing connected to the upper end of the front wing and inclined backwards. The device is relatively light in structure, convenient to machine and easy to install and position, and can be designed in a targeted mode according to a specific ship type so as to reduce appendage resistance, generate favorable pre-swirling flow, improve a wake field, improve propelling efficiency and achieve the purpose of saving energy.

Description

technical field [0001] The invention belongs to ship propulsion technology, in particular to a swept-wing propulsion efficiency improvement device. Background technique [0002] The development of science and technology in today's society is extremely rapid. At the same time, the depletion of energy resources on the earth and the deterioration of the human living environment have also greatly accelerated, which has prompted the International Maritime Organization to impose strict requirements on ship performance indicators. Green development has become the main theme in recent years, and green Shipping is also becoming a new investment outlet for investment institutions. In the field of ship rapidity research, in addition to continuing to spare no effort to optimize the shape of the ship, it is also possible to design and install hydrodynamic energy-saving devices to improve the propulsion efficiency of the ship, thereby reducing the energy consumption of the ship. Hydrodyn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H1/28B63H1/14
CPCB63H1/28B63H1/14
Inventor 杨帆陈昆鹏陈伟民赵伟民葛明臣李艳丽闫磊马雪泉董国祥
Owner SHANGHAI SHIP & SHIPPING RES INST
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