Cavitation type ultrahigh pressure water hammer type water gun sprayer

Abstract

The invention discloses a cavitation type ultrahigh pressure water hammer type water gun sprayer. Under the high pressure, a nozzle of the sprayer sprays out water hammer jet flow with cavitation proficiency. The sprayer comprises a sprayer cavity comprising an accordion cavity, a Helmholtz cavity and a conical nozzle outlet control section, wherein the accordion cavity and the Helmholtz cavity are axially through along the sprayer. A conical cavity transition section is formed between the accordion cavity and the Helmholtz cavity, high-speed fluid flows from the accordion cavity to a nozzle outlet to form water hammer flow with self-oscillation, and the water hammer flow produces vertex adhering wall effect at the nozzle outlet control section so that a cavitation phenomenon is induced at the nozzle outlet control section. The water jet flow sprayed out by the sprayer belongs to discontinuous cavitation water hammer flow, water attacking strength is in alternate tension with relaxation, alternating stress can be exerted on the surface of an attacked object, and the surface of the attacked object can be easily damaged or surrendered due to fatigue strength by means of the alternating stress and the cavitation effect. The cavitation type ultrahigh pressure water hammer type water gun sprayer is applied to occasions requiring rust removal, cleaning, scrabbing on the surface of concrete and the like.

Description

technical field [0001] The patent of the present invention relates to a water gun device for ultra-high pressure water jets, in particular to a cavitation type ultra-high pressure water hammer water gun nozzle. Background technique [0002] The pollution layer or covering layer formed by physical, chemical or biological action on the surface of the object is called dirt, and the process of removing these pollutants or covering layer to restore the original surface condition is called cleaning. According to cleaning function and principle: chemical cleaning, physical cleaning, microbial cleaning. In order to make the metal surface have good cleanliness and roughness, it is necessary to carry out pretreatment such as rust removal on the surface of the metal structure. In the field of anti-corrosion, there is "seven points of rust removal, three points of painting", which shows the importance of rust removal. In view of the particularity of the metal structure, the constructio...

AI Technical Summary

Problems solved by technology

This continuous jet lacks a "fatigue effect" on the surface of the object. At the same impact force, if there is no "fatigue effect", it is difficult to make the dirt, rust spots, adhesion layers and other objects attached to the surface of the object yield

Images