Multi-resonance-cavity cavitating jet nozzle

Abstract

The invention discloses a multi-resonance-cavity cavitating jet nozzle which comprises a left end body, a right end body and at least one middle body, wherein the tail end of the left end body is in threaded connection with the first middle body, and the right end body is in threaded connection with the last middle body, thus forming at least three resonance cavities with identical structures; inlets and outlets of the resonance cavities are connected with different stages of necking openings; the tail resonance cavity and a spraying opening are formed in the right end body; the axial lines of the multiple resonance cavities, the different stages of necking openings and the spraying opening are overlapped with the axial line of the nozzle; and a first sine flow guide curved surface and a second sine flow guide curved surface are arranged at the front part of the left end body, so that liquid can quickly and stably enter the nozzle, is severely cavitated through the multiple stages of necking openings and the multiple resonance cavities, and is finally sprayed out from the spraying opening. Compared with the prior art, the multi-resonance-cavity cavitating jet nozzle disclosed by the invention can conform to influx of high-flow high-flowing speed liquid; and the sine flow guide curved surfaces, the multiple resonance cavities and the multiple stages of necking openings enhance the cavitating effect on the liquid and improves the cavitating efficiency.

Description

technical field [0001] The invention relates to a cavitation jet nozzle, in particular to a multi-resonance cavity type cavitation jet nozzle. Background technique [0002] The cavitation jet nozzle is a kind of generating device that causes the liquid to produce cavitation effect. There are many kinds of cavitation water jet nozzles at home and abroad. The typical structures are center body nozzle and rotor blade nozzle, but their structure is relatively complicated. , and the cavitation effect is relatively poor. Harmonic self-resonating cavitation waterjet nozzles have better cavitation effects, and their two typical structures are organ pipe nozzles and Helmholtz oscillating cavity nozzles. Based on harmonic self-resonance cavitation water jet technology, various forms of cavitation jet nozzle structures have been designed, for example, a centralized rotating cavitation jet nozzle disclosed in Chinese patent publication number 104307651A, and Chinese patent publication ...

AI Technical Summary

Problems solved by technology

The above-mentioned cavitation jet nozzle is mainly used in surface cleaning, rust removal, cutting, drilling, etc., but its flow rate is small, and its structure is difficult to apply to the fields of sewage treatment and seawater desalination production. In the case of cavity nozzles, the cavitation efficiency of the above-mentioned cavitation jet nozzles is low, it is difficult to form a better cavitation effect, and it cannot meet the actual requirements of cavitation jets

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