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A cavity length continuously adjustable high pressure self-excited oscillation pulse jet nozzle

A technology of self-excited oscillation and pulsed jet, which is applied in the direction of jetting device and jetting device to achieve the effects of convenient use, energy concentration and loss reduction

Inactive Publication Date: 2016-02-10
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no high-pressure self-excited oscillation pulse jet nozzle with simple structure, easy processing, good effect and low cost.

Method used

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  • A cavity length continuously adjustable high pressure self-excited oscillation pulse jet nozzle
  • A cavity length continuously adjustable high pressure self-excited oscillation pulse jet nozzle
  • A cavity length continuously adjustable high pressure self-excited oscillation pulse jet nozzle

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Embodiment Construction

[0027] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.

[0028] please see figure 1 , figure 2 , image 3 with Figure 4 , the technical solution adopted in the present invention is: a cavity length continuously adjustable high-pressure self-excited oscillation pulse jet nozzle, including an inlet nozzle 1, an adjustment ring 2, a base 3 and an outlet nozzle 4; the middle part of the inlet nozzle 1 is provided with a tapered hole 7. There is a straight pipe section 8 at the outlet, the cone angle of the tapered hole 7 is 13.5°, the surface roughness Ra of the hole is less than or equal to 0.8, the length of the...

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Abstract

The invention discloses a high-pressure self-oscillation oscillating impulse jet flow nozzle with continuous adjustable cavity length. The high-pressure self-oscillation oscillating impulse jet flow nozzle comprises an inlet nozzle, an adjusting ring, a base and an outlet nozzle, wherein the base is an inner hollow cylinder; the inner cavity of the cylinder is a cylindrical oscillating cavity; the upper end of the inlet nozzle is connected with a high-pressure pipe by external threads arranged on the cylindrical face of the end part of the upper end; the middle of the inlet nozzle is spirally connected with inner ring threads of the adjusting ring by external threads arranged on the outer cylindrical face of the middle; the lower end of the inlet nozzle is spirally screwed into the oscillating cavity of the base; the base is fixedly connected with the adjusting ring and the outlet nozzle respectively by screws, through holes formed in the upper and lower bottom faces of the base, a through hole formed in the adjusting ring and a through hole formed in the outlet nozzle. The high-pressure self-oscillation oscillating impulse jet flow nozzle with the continuous adjustable cavity length has the advantages that aiming at different working pressures, the cavity length of the oscillating cavity can be continuously adjusted by rotating the base, and thus the continuous jet flow is changed into strong impulse jet flow; each part of the nozzle is easily processed, and the replacement is convenient.

Description

technical field [0001] The invention belongs to the field of mechanical equipment, and relates to a self-excited oscillation pulse jet nozzle, in particular to a cavity-length continuously adjustable high-pressure self-excited oscillation pulse jet nozzle which can convert continuous jets under different working pressures into pulse jets. Background technique [0002] Self-excited oscillating pulse jet is a high-efficiency jet developed by using theories of fluid mechanics, fluid resonance, transient flow, and hydroacoustics. Without relying on any other rotating parts or external excitation, the continuous jet can be converted into a pulse jet only by using the special structure of the self-excited oscillating pulse jet nozzle, thereby greatly enhancing the striking force and destructive effect of the jet, improving the working efficiency of the jet, and playing a role to the effect of energy saving. Therefore, the self-excited oscillating pulse jet nozzle is a very promis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05B1/34
CPCB05B1/083
Inventor 康勇王晓川李登袁波方珍龙胡毅王泽峰丁小龙
Owner WUHAN UNIV
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