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High-speed water spraying propeller

A propeller and high-speed technology, applied in ship propulsion, ship parts, ships, etc., can solve the problems of increasing ship load weight, many pipelines, and insufficient speed of ship sailing

Active Publication Date: 2016-05-25
王升宏 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The waterjet propulsion system of today's ships uses the waterjet thrust generated by the pressurization of two-stage conventional axial flow pumps. The water pressure (water flow) obtained by this design cannot be greatly improved, and the amount of water sucked into the cabin is very large. , there are more pipelines, which will undoubtedly increase the load weight of the ship itself
Due to the above reasons, the ship's navigation is still not fast enough

Method used

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  • High-speed water spraying propeller
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  • High-speed water spraying propeller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] (1) The overall casing of the high-speed water-jet propeller (as shown in Figure (2)) is installed on the hull, and the overall casing includes: the arc-shaped tail cover of the propeller body ①, the deflector ② on the inner wall of the arc-shaped tail cover, and the paddle body shell ③ , Water nozzle rolling bearing support (not shown). They are cast as one piece in one go.

[0012] (2) The impeller shaft (as shown in figure (3)) includes: the main flow cover of the water jet ④, the conical shaft ⑤ with 5 layers of blades, which can be cast as a whole.

[0013] (3) Insert the integral impeller shaft into the bearing bracket of the water nozzle in the paddle body through the water inlet of the paddle shell, and then install the shroud (not shown) at the shaft end.

[0014] (4) At the water inlet, insert the bracket with thrust bearing and rolling bearing into the shaft end, and fix it on the shell of the water inlet of the paddle body with bolts.

[0015] (5) The defl...

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Abstract

The invention provides a high-speed water spraying propeller. According to the overall structure, the propeller is composed of a central impeller shaft and a propeller body shell. The central impeller shaft is structurally an integral cone, and the front and the back of the central impeller shaft are each provided with a fairing. The impeller shaft is provided with blades which are increased step by step from a water inlet to a water spraying opening, the propeller pitches of all layers are increased step by step, the spacing among all layers is increased step by step, and flow deflectors are arranged among all layers.

Description

technical field [0001] The invention relates to the technical field of water-jet propulsion systems for ships, and is specifically embodied as a high-speed water-jet propeller for ships. Background technique [0002] The waterjet propulsion system of today's ships uses the waterjet thrust generated by the pressurization of two-stage conventional axial flow pumps. The water pressure (water flow) obtained by this design cannot be greatly improved, and the amount of water sucked into the cabin is very large. , There are more pipelines, which undoubtedly increases the load weight of the ship itself. Due to the above reasons, the navigation of the ship is still not fast enough. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a high-speed water-jet propeller of a ship with a large thrust, which will be realized by adopting the following technical solutions. [0004] As shown in Figure (1): (embodiment five layers) th...

Claims

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Application Information

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IPC IPC(8): B63H5/14
CPCB63H5/14
Inventor 王升宏黄继木黄磊
Owner 王升宏