Marine hydrodynamic force energy-saving combination type conduit hydrofoil

A combined, hydrodynamic technology, applied in ship propulsion, ship parts, ship construction, etc., can solve problems such as weakening effects, achieve the effect of reducing main engine power and improving propulsion efficiency

Inactive Publication Date: 2020-01-03
708TH RES INST OF CSSC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of ship shape line technology, new ship types make the effect of the original ship hydrodynamic energy-saving technology gradually weaken, and it is necessary to develop hydrodynamic technology suitable for new ship types

Method used

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  • Marine hydrodynamic force energy-saving combination type conduit hydrofoil
  • Marine hydrodynamic force energy-saving combination type conduit hydrofoil
  • Marine hydrodynamic force energy-saving combination type conduit hydrofoil

Examples

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Embodiment Construction

[0034] In order to make the technical means realized by the present invention, creative features, goals and effects easy to understand, the following examples are combined with the appended figure 1 to attach Figure 11 A marine hydrodynamic energy-saving combined ducted hydrofoil provided by the present invention will be described in detail.

[0035] In this embodiment, the ship's hydrodynamic energy-saving combined ducted hydrofoil mainly includes a duct 1, a non-full circular annular duct 11, a non-complete elliptical annular duct 12, hydrofoils 2, duct outer hydrofoils 21, duct inner hydrofoils 22. Hull 3.

[0036] The combined ducted hydrofoil is arranged in front of the propeller and at the tail of the ship close to the propeller. The combined ducted hydrofoil includes a duct 1 and several hydrofoils 2, wherein the duct 1 is composed of a non-complete circular annular duct 11 and an incomplete elliptical annular duct 12 , and the incomplete elliptical ring conduit 12 i...

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Abstract

The invention discloses a marine hydrodynamic force energy-saving combination type conduit hydrofoil, and belongs to the technical field of ship hydrodynamic force energy saving. The conduit hydrofoilcomprises a conduit consisting of a non-full-circle circular ring conduit and an incomplete elliptical ring conduit, wherein the incomplete elliptical ring conduit is connected with a ship body through a plurality of hydrofoils; one end of the non-full-circle circular ring conduit is connected with the ship body; the other end of the non-full-circle circular ring conduit is connected with one endof the incomplete elliptical ring conduit, or two ends of the non-full-circle circular ring conduit are independently connected with the ship body; the plurality of hydrofoils take the axial line ofa propeller as a center and are outwards distributed on the inner side and the outer side of the incomplete elliptical ring conduit in a radial pattern; the hydrofoils comprise conduit outer hydrofoils and conduit inner hydrofoils, wherein one end of each of the plurality of conduit outer hydrofoils is fixedly arranged on the outer side of the incomplete elliptical ring conduit; and two ends of the plurality of conduit inner hydrofoils are independently connected with the inner side of the incomplete elliptical ring conduit and the ship body. The marine hydrodynamic force energy-saving combination type conduit hydrofoil provided by the invention is used for improving ship propulsion efficiency and lowering main diesel engine propulsion power.

Description

technical field [0001] The invention relates to the technical field of ship hydrodynamic energy saving, in particular to a ship hydrodynamic energy saving combined duct hydrofoil, especially to a kind of hydrofoil suitable for the flow in front of the propeller, which can provide propeller pre-rotation and improve the unfavorable flow at the tail of the ship. Ship hydrodynamic energy saving device. Background technique [0002] At present, with the increasing global greenhouse effect, IMO (International Maritime Organization International Maritime Organization) has put forward higher requirements for energy saving and emission reduction in ship navigation, which is mainly reflected in two quantitative restrictions. One is the reduction in ship design. The emission requirement is EEDI (Energy Efficiency DesignIndex Ship Energy Efficiency Design Index) index, and the second is the emission reduction requirement during ship navigation is EEOI (Ship Energy Efficiency Operation I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H5/15
CPCB63H5/15
Inventor 王金宝于海蔡跃进吴永顺张越峰蔡诗剑
Owner 708TH RES INST OF CSSC
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