Micro-nano bubble generator

Abstract

The invention discloses a micro-nano bubble generator. The micro-nano bubble generator comprises a liquid inlet pipe, a swirl flow groove, a reducing pipe, an air inlet pipe, a shell, a throat pipe, adiffusion pipe, a mixing pipe, a breaker and release heads, wherein the reducing pipe, the throat pipe and the diffusion pipe are sequentially connected to form a Venturi-pipe-like water passing channel structure; a gap between the joints of the reducing pipe, the throat pipe and the diffusion pipe is a multi-stage air inlet; the inner walls of two ends of the shell are connected with the outer wall of the reducing pipe and the outer wall of the diffusion pipe respectively to form an air storage chamber which communicates with a throat flow channel through the multi-stage air inlet; and the breaker is arranged in the mixing pipe; and the outer side of the mixing pipe is connected with four release heads. According to the micro-nano bubble generator disclosed by the embodiments of the invention, large bubbles can be quickly broken; formed bubbles have the characteristics of small size and uniform dispersion; meanwhile, the diameters of the bubbles can be adjusted by replacement of therelease heads with different specifications.

Description

technical field [0001] The invention belongs to a gas-liquid two-phase mixing device, in particular to a micro-nano bubble generator. Background technique [0002] Micro-nano bubbles have the characteristics of small bubble size, large specific surface area, high adsorption efficiency, and slow rising speed in water. Introducing micro-nano bubbles in water can effectively separate solid impurities in water, quickly increase the oxygen concentration of water, kill harmful bacteria in water, and reduce the friction coefficient of solid-liquid interface. In fields such as drag reduction, it has higher efficiency than macroscopic bubbles, and its application prospects are broader. The bubble generator is the main equipment in the bubble manufacturing technology. Its performance directly affects the size, quantity and uniformity of the generated bubbles. At present, there are many methods for manufacturing microbubbles, such as physical cutting method, pressurized dissolved air ...

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Problems solved by technology

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an improved micro-nano bubble generator, which has a stronger shearing and crushing ability, and solves the problem of low uniformity of the bubbles without excessively limiting The intake air volume can meet the purpose of high air bubble uniformity when the air intake volume is large

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