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Supercavitation gas-liquid multi-phase water spray propeller

A water jet propulsion, vapor-liquid technology, applied in ship propulsion, propulsion components, ship components, etc.

Inactive Publication Date: 2007-02-14
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention aims to solve the problem of realizing high-power propulsion under cavitation conditions, so as to expand the application range of water jet propulsion

Method used

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  • Supercavitation gas-liquid multi-phase water spray propeller
  • Supercavitation gas-liquid multi-phase water spray propeller
  • Supercavitation gas-liquid multi-phase water spray propeller

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0026] The same as the general water jet propeller, the supercavitation vapor-liquid multiphase water jet propeller drives the impeller of the pump stage to rotate through the motor, and converts the rotational mechanical energy into the mechanical energy of the liquid flow. Its basic structure is as follows: figure 1 As shown, it is composed of a water absorption chamber 1, a supercavitation impeller 2, a guide member 3, a shafting 4 and an impeller chamber 5.

[0027] figure 2 It is the supercavitation impeller structure diagram, the main components are shaft 1, Tulin supercavitation blade 2, supercavitation impeller hub 3 and impeller chamber housing 4. image 3 It is a structural diagram of a kinetic energy converter, and its main components are a converter housing 1 , a shaft 2 and a converter blade 3 .

[0028] Under the rotation of the impeller, the liquid flow enters the supercavitation impeller through the water suction chamber. When the water body passes through t...

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Abstract

The present invention is one kind of water-jetting propulsion system utilizing supercavitation in realizing vapor-liquid two phase propulsion. The water-jetting propulsion system consists of a water uptake chamber, a supercavitation impeller, an impeller chamber, a kinetic energy converter and a shafting. The supercavitation impeller with vanes designed based on Tulin supercavitating foil principle can operate normally under cavitation and supercavitation condition. Both the vapor phase and the liquid phase in the back of the impeller are converted in the kinetic energy converter before being jetted via the thruster to produce thrust in the outlet of the thruster. The kinetic energy converter can guide the flow of both the vapor phase and the liquid phase and convert the rotation kinetic energy of both the vapor phase and the liquid phase in the outlet of the impeller into axial flow kinetic energy without increasing the pressure of the two phase flow. The present invention realizes great power thrusting under cavitation condition.

Description

technical field [0001] The invention relates to a water jet propulsion device utilizing supercavitation phenomenon to realize high power and high power density, and belongs to the technical field of water jet propulsion of water surface vehicles. Background technique [0002] Waterjet propulsion is one of the propulsion methods to realize the navigation of water surface and underwater vehicles. Unlike the propeller, it does not use the propeller to directly generate thrust, but uses the reaction force of the jet of water from the propulsion pump to push the ship forward. Waterjet propulsion has the advantages of high propulsion efficiency, strong anti-cavitation ability, small attachment resistance, good maneuverability, simple transmission shaft system, good protection performance, low operating noise, wide range of variable working conditions, and environmental protection. . [0003] With the increase of sailing speed and the increase of the amount of water sprayed by the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63H11/02
Inventor 王国玉余志毅郝勇李向宾
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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