Integrated rotary cavitating jet nozzle

Abstract

The invention relates to an integrated rotary cavitating jet nozzle comprising a cylindrical inlet segment, a cylindrical resonant cavity, a cylindrical pore and a cylindrical outlet segment. The cylindrical outlet segment is provided with a plurality of intake tubes; bores of the intake tubes are tangent to a bore of the cylindrical outlet segment. The inner diameter of the intake tubes is half a difference between the inner diameter of the cylindrical outlet segment and the diameter of the cylindrical pore. The section of the bore of each intake tube is round, square, or in any special shape. The intake tubes can be axially distributed in multiple rows at the cylindrical outlet segment of a nozzle body. Compressed air is led into the intake tubes, the compressed air led in from the intake tubes enters in the tangent direction, air swirls surrounding a water jet are formed in the cylindrical outlet segment and drive the water jet to turn into a rotating vortex in the cylindrical outlet segment, and cavitating effect is further enhanced; meanwhile, cavitating bubbles are concentrated to the center of the water jet, energy of the cavitating water jet is more concentrated, the shear action of the jet upon a target is enhanced, and eroding capacity of the cavitating jet is greatly improved accordingly.

Description

technical field [0001] The invention relates to a cavitation jet nozzle, in particular to a centralized rotating cavitation jet nozzle, which can be used for material surface cleaning, rust removal, degumming, surface strengthening, drilling, cutting, rock breaking and the like. Background technique [0002] Water jet special processing uses a water jet beam with high kinetic energy to erode materials, thereby realizing material cutting, which belongs to the category of high energy beam processing. Water jet processing belongs to non-contact "cold cutting", without mechanical stress, heat deformation, heat-affected zone, so it becomes the best cutting method for heat-sensitive materials; it has good adaptability, excellent cutting quality, narrow kerf, and less material loss , and the medium cost is low, clean, dust-free, non-toxic, and environmentally friendly during the cutting process, and is widely used in machinery manufacturing, aerospace, automotive, military, and cer...

AI Technical Summary

Problems solved by technology

However, in the application process, the existing cavitation water jet nozzles have many deficiencies, which are mainly manifested in: 1) The cavitation effect of the organ tube type cavitation jet nozzle used for cleaning is poor, and the outlet cavity cannot make the water jet energy Concentration, the energy concentration on the section of cavitation water jet is low; 2) The traditional cavitation water jet nozzle used for cutting and rock breaking has low jet beam velocity, non-concentrated energy and large action area, which is used for drilling, Poor effect and low efficiency when cutting and breaking rock

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