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Following wake tube of ship

A ship and wake technology, applied in the field of wake tubes, can solve problems such as insufficient recovery and utilization of energy, reduced propulsion efficiency of the propulsion system, and increased wave-making resistance at the stern, so as to improve hull efficiency and propulsion Efficiency, optimized layout, effect of improved flow field in the stern

Inactive Publication Date: 2010-06-30
孙志伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The technical problem to be solved by the present invention is that in the prior art, there are some problems in the flow field and efficiency of the ship itself and its propulsion system: the flow field of the ship itself and its propulsion system needs to be further improved and optimized; The deterioration of the flow field may reduce the propulsion efficiency of the propulsion system; the flow field of the propulsion system at the stern of the ship also deteriorates the flow field of the ship itself; the energy of the outflow of the propulsion system has not been fully recovered and utilized, and Relatively increase the wave-making resistance at the stern

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0039] Such as figure 1 As shown, the wake pipe of the ship with water outlet in front of the propeller and behind the side. The center line of the follower pipe is on the same water plane (or longitudinal section), the water inlet 1 of the follower pipe is on the side deck (or bottom surface) 5 of the midship part of the ship, and the water outlet 3 of the follower pipe It is on the side surface (or bottom surface) 6 of the stern, the inlet part 2 of the follower tube and the outlet part 4 of the follower tube are both bell-shaped, and the transmission shaft 9 of the propeller 7 and its shaft tube 10 pass through the follower tube. The tip circle of the propeller 7 passes through the bell mouth of the outlet part 4 of the relevant tracer pipe, and the front end of the transmission shaft 9 is the electric motor or gearbox 8 .

[0040] As the ship advances, its stern decompresses and creates waves. Under the effect of negative pressure difference, part of the wake in the mids...

Embodiment 2

[0043] Such as figure 2 As shown, the ship waker pipe and its dustpan-shaped concave surface near the water outlet. The center line of the follower pipe is on the same water plane (or longitudinal section), the water inlet 1 of the follower pipe is on the side deck (or bottom surface) 5 of the midship part of the ship, and the follower pipe in front of the propeller 7 The water outlet 3 is on the steep slope in front of the pit formed by the dustpan-shaped concave surface 11, the water outlet 3 of the follower pipe behind the propeller 7 side is on the outside of the rear of the pit, and the inlet part 2 of the follower pipe and the outlet part 4 of the follower tube are bell-shaped, the drive shaft 9 of the propeller 7 and its shaft tube 10 pass through the follower tube, the tip circle of the propeller 7 passes through the pit, and the front end of the drive shaft 9 is a motor or speed changer. Box 8.

[0044] Compared with the first embodiment, this embodiment is basical...

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Abstract

The invention discloses a following wake tube of a ship, which is used for solving some problems existing in flow fields and the efficiency of a ship body and a propulsion system thereof in the prior art. The following wake tube of the ship is a pipeline system for communicating a waist flow field and a stern flow field of the ship, wherein a water inlet of the following wake tube is arranged on the side face or the bottom of the waist of the ship; a water outlet of the following wake tube is arranged on the side face, the bottom or the end face of the stern or the outlet part of the following wake tube extends out of the side face, the bottom or the end face of the stern; and the middle part of the following wake tube is arranged inside the ship. The a following wake tube of the ship improves and optimizes the flow fields of the ship body and the propulsion system thereof, recycles a part of energy of the following wake of the ship and the effluent of the propulsion system and reduces the wave making resistance of the ship so as to enhance the ship body efficiency and the propulsion efficiency of the ship. The presence of the following wake tube of the ship is also beneficial to the matching and installation of the propulsion system relative to the ship body.

Description

technical field [0001] The invention belongs to the technical field of ships, in particular to a flow field for improving and optimizing a ship and its propulsion system, for recovering and utilizing the wake of the ship and the energy of the outflow of the propulsion system, and for reducing A waker tube that improves the ship's hull efficiency and propulsion efficiency by improving the ship's wave-making resistance. Background technique [0002] Ships are used in a wide range of applications, such as transportation, fishing, engineering, ocean development, and military affairs. This requires a wide variety of high-performance ships. The main performance of a ship, such as speed, maneuverability, seakeeping and economy, is mainly affected and restricted by the ship type and propulsion system. Under the existing technical conditions, the high performance of ships mainly refers to rapidity, and often at the cost of sacrificing economy. [0003] Whether it is a ship floatin...

Claims

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Application Information

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IPC IPC(8): B63B1/40
CPCB63H5/16
Inventor 孙志伟
Owner 孙志伟
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