Novel controllable nanobubble generation device

Abstract

The invention relates to a bubble generation device. The generation device comprises a bubble generator itself and a circuit control system. An air outlet end of an air inlet pipe is connected with aventuri tube on a gradual contraction section, the upper end of the air inlet pipe is connected with a solenoid valve and an air pump, a pressure sensor is located in a throat outlet, a control circuit is connected with the solenoid valve and the pressure sensor, and the joint of a gradual expansion section and an outlet section is provided with multiple rings of porous disks which are equidistantly distributed and have cavitation holes of the same number in the radial direction. The pressure sensor transmits a pressure signal in the throat outlet to a control circuit, and the control circuitcontrols opening and closing of the solenoid valve according to the pressure of the throat outlet, thereby achieving the effect of controlling the air inlet amount of the air pump. The control circuitis used for detecting the pressure of the outlet to control the air flow amount, thereby ensuring that the air melting amount of the bubble generator is in a most moderate state.

Description

technical field [0001] The invention belongs to the technical field of flotation column bubble generators, and in particular relates to a novel controllable nano bubble generator. Background technique [0002] Due to the characteristics of small bubble size, large specific surface area, high adsorption efficiency, and slow rising speed in water, micro-nano bubbles are widely used in mining, environment, chemical and other fields. Introducing 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, so that it can be used in air flotation water purification, water body oxygenation, ozone water disinfection and micro-nano Air bubbles have higher efficiency than macro air bubbles in applications such as drag reduction, and have broader application prospects. [0003] Most of the existing bubble generating devices are...

AI Technical Summary

Problems solved by technology

The main problem with this design is that the amount of gas suction depends largely on the formation of negative pressure. When the parameters of the fluid itself change or the flow state changes, such as changes in liquid temperature and flow rate, the amount of gas suction is difficult to control, and Changes in the parameters of the fluid itself also seriously affect the release of bubbles, making it difficult to ensure stable bubble generation and bubble size

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