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Venturi cavitation based on swirl-orifice coupling effect

ActiveCN119977065BOptimize the shortcomings of poor cavitation continuityincrease velocity gradientWater/sewage treatment by centrifugal separationFlow mixersPressure riseSocial benefits
This invention proposes a Venturi cavitation device based on the swirling-orifice coupling effect, relating to the field of fluid cavitation technology. It includes an inlet section, throat, and expansion section of the Venturi tube body, with hollow spiral guide vanes on the inner wall of the inlet section. The spiral guide vanes cause the fluid near the inner wall to rotate at high speed, forming a stable rotation effect and inducing a local low-pressure zone in the expansion section. This effectively counteracts the pressure rise caused by cavitation bursting, shortens the cavitation cycle interval, and enhances the continuity of the cavitation process. The hollow flow channel regulates and accelerates the fluid in the central region, effectively increasing the throat velocity and improving cavitation intensity. This invention has a compact structure, is easy to manufacture, and can simultaneously improve cavitation intensity and continuity. It is widely applicable to various fields such as wastewater degradation, sterilization and disinfection, industrial emulsification, and oil-water mixing treatment, showing good application prospects and economic and social benefits.
Owner:HARBIN UNIV OF SCI & TECH