Rotary hydrodynamic cavitator capable of continuously and stably generating cavitation

Abstract

The invention provides a rotary hydraulic cavitator capable of continuously and stably generating cavitation, which comprises a spiral volute and an impeller, the impeller is arranged in the spiral volute, the impeller comprises a front cover plate, blades and a rear cover plate, and a plurality of blades are uniformly distributed between the front cover plate and the rear cover plate; the working surface of each blade is an arc surface, and the back surface of each blade is locally raised, so that a flow channel between the back surface of each blade and the working surface of the adjacent blade is locally narrowed to form a throat structure. The cavitation can be continuously and stably generated under one atmospheric pressure, the operation is simple and convenient, the adaptability is high, meanwhile, the good conveying capacity is achieved, and sewage can be continuously treated.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a rotary hydraulic cavitator capable of continuously and stably generating cavitation. Background technique [0002] With the continuous expansion of industrial and agricultural scale, the amount of sewage discharge has increased sharply, and the composition of sewage has become more and more complex. The sewage problem has seriously affected the sustainable development of the economy, and also poses a serious threat to human health and the ecological environment. Sewage treatment is urgent. Conventional sewage treatment methods mainly include physical methods, chemical methods, biological methods, advanced oxidation methods, etc., but they all have certain shortcomings. For example, physical methods are generally used to treat suspended solids and macromolecular substances, and are often used for pretreatment. High, long treatment cycle, and poor reproducibility; the chemical rea...

AI Technical Summary

Problems solved by technology

[0004] Commonly used hydraulic cavitation devices, such as orifice plates and venturi tubes, have simple structures and low manufacturing and operating costs, but they also have disadvantages such as large pressure loss, low cavitation effect, and inability to expand the size, making them difficult to apply on a large scale

At present, most rotary cavitation generators have complex structures, harsh cavitation flow conditions, and high operation and maintenance costs, which also affect their practical applications.

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