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Double-shear type cavitation nozzle

A double-shearing and nozzle technology, applied in the field of water jets, can solve the problems of abundant cavitation, failure to produce, and unsatisfactory nozzle cavitation effects, etc., to achieve strong cavitation effect, good shearing effect, and cavitation collapse exterminate the drastic effect

Pending Publication Date: 2021-07-09
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current cavitation nozzles generally only have one shearing effect, which makes the cavitation effect of the nozzle unsatisfactory, so it is impossible to produce more abundant cavitation

Method used

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  • Double-shear type cavitation nozzle
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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in combination with the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0031] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0032] The present invention will be further described below in conjunction with specific examples, but not as a limitation of the present invention.

[0033] It should be noted that the experimental methods described in the following embodiments, unless otherwise specified, are conventional methods, and the ...

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Abstract

The invention provides a double-shear type cavitation nozzle. The double-shear type cavitation nozzle comprises an upper nozzle, an inner sleeve, an outer sleeve, a mixing cavity, a lower nozzle and a connecting pipe, wherein a first cavity and a first through hole are formed in the upper nozzle along the axial direction; the upper nozzle is sleeved with the inner sleeve, and a second cavity is formed between the inner sleeve and the upper nozzle; the outer sleeve is arranged on the outer wall of the upper nozzle in a sleeving manner and wraps the inner sleeve, and a third cavity is formed between the outer sleeve and the inner sleeve; the mixing cavity is clamped at the outlet of the inner sleeve; the lower nozzle penetrates through the outer sleeve and extends into the mixing cavity, a fifth cavity communicated with the third cavity is formed between the lower nozzle and the mixing cavity, a jet hole is formed in the lower nozzle in the axial direction of the lower nozzle, a second through hole and an annular inner cavity communicated with the second through hole are formed in the side wall of the end side, away from the mixing cavity, of the lower nozzle, and the annular inner cavity is not communicated with the jet hole; and the connecting pipe is used for connecting the second cavity and the second through hole. When a jet flow passes through the nozzle, multiple times of shearing are carried out, lots of cavitation bubbles are generated, and the cavitation effect and the operation efficiency are improved.

Description

technical field [0001] The invention belongs to the technical field of water jets, and in particular relates to a double-shear cavitation nozzle. Background technique [0002] Cavitation jet is a new type of jet technology developed in recent years. A large number of cavitation bubbles are induced in the jet flow artificially, and the impact force of the jet flow is enhanced by the instantaneous high temperature and high pressure generated when the bubbles collapse, as well as compression waves and micro jets. , so as to improve the efficiency of the jet. Due to the characteristics of cleanness, high efficiency and low cost, it is widely used in various industrial fields and plays an important role in the construction of the national economy. [0003] Cavitation is formed by high-speed and high-pressure jet shearing, and more cavitation means better working results. In the study of cavitation cavity formation process, it was found that the cavitation performance of jet unde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05B1/34
CPCB05B1/34
Inventor 李登罗文悦姚致远熊杰巫世晶王晓笋
Owner WUHAN UNIV
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