2results about How to "High rotational strength" patented technology

The application belongs to the technical field of micro-bubble generating equipment, and discloses a cyclone-reversal type micro-bubble generator. The micro-bubble generator comprises a liquid inlet pipe, a cyclone isolation cylinder, a first-stage cyclone cavity, a second-stage cyclone cavity, a cyclone reversal cavity, a Venturi nozzle and an air injection pipe. Liquid phase enters the first-stage cyclone cavity along the tangential direction of the periphery of the first-stage cyclone cavity through the liquid inlet pipe. The cyclone isolation cylinder is coaxial and isohypse with the first-stage cyclone cavity, and the inside of the cyclone isolation cylinder is the second-stage cyclone cavity. One end of the first-stage cyclone cavity and one end of the second-stage cyclone cavity are connected with the cyclone reversal cavity. The air injection pipe is inserted into the second-stage cyclone cavity through the cyclone reversal cavity along the central axis of the micro-bubble generator. The other end of the second-stage cyclone cavity is connected with the Venturi nozzle. The contraction pipe section is directly connected with the other end of the second-stage cyclone cavity or extends into the second-stage cyclone cavity. The micro-bubble generator has the advantages of ensuring the stability of cyclone, being more compact in structure, having stronger cyclone shear action on airflow, and generating smaller micro-bubbles.

The application discloses a coaxial multi-atmosphere water guide laser processing device, which comprises a laser generating module, a light-water coupling module, a protective gas flow generating module and a composite nozzle assembly. The light-water coupling module couples the water jet and the laser by total reflection to form a laser water jet. The protective gas flow generating module comprises a first protective gas flow generating module and at least one second protective gas flow generating module, and can generate multiple layers of coaxial protective gas flows. The first protective gas flow spirally surrounds the outside of the laser water jet, and the second protective gas flow further surrounds the outside of the first protective gas flow. The composite nozzle assembly is composed of a first nozzle and at least one second nozzle which are coaxially nested from inside to outside. Finally, the output is a coaxial composite jet composed of the laser water jet and the multiple layers of protective gas flows. The application solves the technical problems that are difficult to simultaneously realize efficient water drainage, prevent molten material from splashing back and maintain the stability of the water jet in the prior art.