A turbine hydrodynamic cavitation generator

Abstract

The invention provides a turbine hydrodynamic cavitation generator, which comprises several stages of cavitation units connected in series, and each stage of the cavitation unit includes a casing, a stationary vane cascade and a turbine rotor; two Symmetrical static blade cascades, and one static blade cascade is close to the casing inlet, and the other static blade cascade is close to the casing outlet; a rotatable turbine rotor is installed between the two symmetrical static blade cascades, and the two ends of the turbine rotor They are respectively supported in two symmetrical stationary cascades; the thickness of the vanes of the stationary cascade near the inlet of the casing gradually increases along the flow direction, and the cross-sectional area of ​​flow between adjacent vanes remains constant in the radial direction; close to The thickness of the blades of the stationary cascade at the outlet of the casing decreases gradually along the flow direction, and the cross-sectional area of ​​flow between adjacent blades remains constant along the radial direction. The present invention utilizes static-dynamic-static arrangement to realize two-stage cavitation, effectively increasing the cavitation area.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a turbine hydraulic cavitation generator. Background technique [0002] With the continuous development of industry and agriculture and the great improvement of people's living standards, the problem of water pollution has become increasingly prominent, seriously restricting the sustainable development of the economy, and posing a threat to the health of human drinking water and the living environment of organisms. Sewage treatment is imminent and has become a problem that must be faced and solved together. Traditional sewage treatment methods include physical sedimentation method, biological absorption decomposition method, chemical reaction method, etc. However, they all have corresponding drawbacks. For example, the physical sedimentation method generally has high treatment cost, long action time, and insignificant effect; the biological method may destroy the local biological...

AI Technical Summary

Problems solved by technology

Existing traditional cavitation generators include orifice plates, venturi tubes, etc. They have simple structures and low manufacturing and operating costs, but they also have shortcomings such as small cavitation areas, low cavitation intensity, and low frequency of cavitation shedding and collapse. Disadvantages lead to insufficient cavitation reaction and unsatisfactory cavitation efficiency

However, many emerging rotating cavitation generators also have problems such as complex structures and high production and operation costs.

In addition, the rotating cavitation generator needs to be driven by a high-speed motor, which increases energy consumption and reduces cavitation efficiency

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