Hydraulic cavitation generating device and hydraulic cavitation generating method

Abstract

The invention discloses a hydraulic cavitation generating device and a hydraulic cavitation generating method. The device comprises a spherical chamber and a plurality of fluid inlet pipes, wherein the spherical chamber is internally provided with a spherical cavity; the plurality of fluid inlet pipes are evenly arranged at the lower half part of the spherical chamber and are communicated with the spherical chamber; the axes of all the fluid inlet pipes pass through the center of the spherical chamber, and the included angles formed between the fluid inlet pipes and the horizontal direction are the same as one another; the fluid inlet pipes are respectively and internally provided with an orifice plate; fluid begins to generate bubbles after passing through the orifice plates; when being sprayed into the lower half part of the spherical chamber, the fluid is enabled to be converged, mixed and collided, so that the collapse and regeneration process of cavitation bubbles is further promoted, and the cavitation intensity is further enhanced. The hydraulic cavitation generating device has the beneficial effects of being large in flux and high in cavitation efficiency.

Description

technical field [0001] The invention relates to the technical field of chemical fluids, in particular to a hydraulic cavitation generating device and a hydraulic cavitation generating method. Background technique [0002] Cavitation refers to the process of the formation, development and collapse of gas cavities inside the liquid or on the liquid-solid interface when the local pressure in the liquid drops. When the liquid pressure drops to even below the saturated vapor pressure of the liquid, a large number of cavitation bubbles are generated due to the violent vaporization of the liquid. Cavitation bubbles expand and grow with liquid flow. When the liquid pressure recovers, the cavitation bubbles collapse instantly to form micro jets and shock waves, resulting in instantaneous local high temperature (1000-5000K) and instantaneous high pressure (1-5×107Pa). Cavitation can lead to performance degradation of hydraulic mechanical equipment, causing vibration, noise, and cavi...

AI Technical Summary

Problems solved by technology

[0006] Although the research on hydrodynamic cavitation has gradually deepened, and the number of cavitator structures proposed has increased, the cavitation intensity and efficiency of hydrodynamic cavitation are relatively low, which is often not enough to trigger or intensify certain physical and chemical reactions.

In addition, the processing capacity of the cavitation reactor is small, and multiple devices need to be used in parallel or in series for large-scale processing, resulting in a large and complex pipeline structure of the processing system, which is still difficult to promote and apply industrially

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