Cavitator with adjustable annular-conical gap

Abstract

The invention relates to a cavitator with an adjustable annular-conical gap, which belongs to the field of hydrodynamic cavitation and comprises an annular-conical cavity composed of an inner truncated cone shaped element (1) and an outer truncated cone shaped element (2), a left annular-conical water outlet, a shaft (3), a lower water inlet, a shell (4), a sealing ring (5), an end cover (6), an adjusting valve (7), a screw (8), a connecting and fixing element (9) and a sealing ring (10). The cavitator is characterized in that the contact area of fluid and a solid wall surface is increased bythe annular-conical cavity, and the cavitation efficiency is improved; the cavitation flow is gathered at one point to generate interference, so that the intensity of cavitation collapse is enhanced;the cavitation flow is quickly diffused to the whole fluid domain after interference, so that the sufficient mixing of an oxidant and the fluid is promoted; the distance between the annular-conical gaps can be adjusted, so that different fluid cavitation effects can be obtained; and each component has good processing manufacturability, and the cavitator has good assembly manufacturability, so thatthe cavitator is convenient to disassemble and assemble.

Description

technical field [0001] The invention discloses a cavitator with adjustable ring-cone clearance, which belongs to the field of hydrodynamic cavitation. Background technique [0002] With the development of modern industry and the improvement of people's living standards, some powerful fertilizers, pesticides, dyes and other emerging products are widely used in production and life, which greatly facilitates people's lives, and at the same time leads to the continuous increase of sewage discharge in our country. The increase of refractory organic matter in wastewater has exceeded the self-purification capacity of the water body, causing pollution to the natural water body. The problem of water pollution is getting worse day by day, and has become the focus of global attention. Traditional water treatment methods include: physical method, chemical method and biological method. Sewage treatment plants in most countries generally use the biologically activated sludge method to tr...

AI Technical Summary

Problems solved by technology

Sewage treatment plants in most countries generally use the biologically activated sludge method to treat sewage. This method has played an important role in the treatment of water pollution, but the sludge method will generate a lot of sludge pollution, and the sludge needs to spend a lot of money to treat it. At the same time, the traditional activated sludge method can no longer meet the current environmental protection requirements.

Images