Micro-nano bubble generating device

Abstract

The invention belongs to the technical field of micro-nano bubble equipment, and particularly relates to a micro-nano bubble generating device. The micro-nano bubble generating device comprises a multistage centrifugal pump and a pressure tank, wherein an air one-way valve air inlet is arranged on a water inlet pipe of the multistage centrifugal pump; a water outlet of the multistage centrifugal pump is communicated with a water inlet of the pressure tank through a pipeline; a flow guide pipe, a fixed plate and a sleeve are arranged in the pressure tank; the four side surfaces of the fixed plate are vertically and fixedly connected with the inner wall of the pressure tank; the inside of the pressure tank is divided into a water flow cavity and a bubble cavity; the flow guide pipe vertically sleeves the fixed plate and communicates with the water flow cavity; the sleeve sleeves the outer wall of the flow guide pipe and extends horizontally in a water flow direction; a movable piece is arranged in the flow guide pipe in clearance fit; one end of a movable piece is sleeved by the flow guide pipe, and the other end of the movable piece extends horizontally in the water flow direction;the other end surface of the movable piece is fixedly connected with one end of a connecting rod; and a moving device which can be used for adjusting the moving of the connecting rod in the axial direction of the connecting rod is arranged on the side surface of the pressure tank. The micro-nano bubble generating device provided by the invention has the advantages of simple operation, low cost, high foaming efficiency and low energy consumption.

Description

technical field [0001] The invention belongs to the technical field of micro-nano bubble equipment, and in particular relates to a micro-nano bubble generating device. Background technique [0002] Traditional air bubbles with a diameter of 1-5mm rise rapidly in water and disappear immediately after reaching the water surface, while micron-sized air bubbles with a diameter below 50 μm rise slowly in water and have a large specific surface area, so the speed of gas-liquid mass transfer Much higher than the traditional large-sized bubbles; at the same time, micro-bubbles also have very good physiological effects. In recent years, micro-bubbles can improve the quality of water and make it easier for gas to be incorporated into water. Moreover, bubbles are generated in liquids, which can be widely used Used in sports drinks, plateau drinks, in sewage treatment, high oxygen water, hydroponics, aquaculture and energy saving of water heating and electricity. [0003] In the existi...

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Problems solved by technology

[0003] In the existing technical field of micro-nano bubble generation, ultrasonic cavitation method and electrolysis method produce micro-bubbles with low efficiency and high energy consumption, which is not conducive to popularization and use in actual production; chemical reaction method has high cost and is easy to cause damage to water bodies. Secondary pollution is not conducive to direct use in natural water bodies, but using high-power high-speed motors to achieve high-speed shear mixing requires high equipment manufacturing, difficult processing, low bubble generation efficiency, high cost and inconvenient operation

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