A micro-nano bubble generating device and a cleaning machine using the device

Abstract

The invention relates to a micro-nano bubble generating device and a cleaning machine using the device. The micro-nano bubble generating device includes a shell with a water inlet at the top and a water outlet at the bottom. The water inlet pipe is arranged on the edge, and the water inlet pipe is provided with a piston, an elastic member, and a connecting piece. The piston is arranged in the water inlet pipe so that it can move up and down, and its lower end is against the top wall of the casing around the water inlet; the lower part of the connecting piece is arranged in the water inlet pipe. And the lower end has a plug-in tube inserted into the water passage chamber, and the area of ​​the lower end surface of the plug-in tube is smaller than the area of ​​the lower end surface of the piston. When the water flow passes through at a relatively large flow rate, the water pressure on the lower end of the piston is greater than the water pressure at the lower port of the insertion tube, and the piston moves upward under the drive of the water pressure, thereby reducing the gap between the lower end of the insertion tube and the upper wall of the bracket, so that The water passing area is reduced to reduce the water pressure, which provides a stable pressure water source for the micro-nano bubble generating device, which is conducive to improving the concentration of micro-nano bubbles and cleaning effect.

Description

technical field [0001] The invention relates to a micro-nano bubble generating device used for washing electrical appliances, and also relates to a cleaning machine using the micro-nano bubble generating device and used for cleaning tableware, vegetables or fruits. Background technique [0002] With the gradual maturity of micro-nano bubble cleaning technology, the application in the field of household appliances has become more extensive. [0003] In the field of industrial applications, nano-scale bubbles refer to tiny bubbles below 1000nm in liquids. Further, bubbles between 1 and 100 μm are called tiny bubbles, and bubbles above 100 μm are called ordinary bubbles. In water, compared with ordinary bubbles, micro-nano bubbles have the characteristics of long existence time, high surface energy, negative charge on the surface, high gas-liquid mass transfer rate, and the ability to spontaneously generate free radicals. Therefore, micro-nano bubbles have the characteristics o...

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Problems solved by technology

However, further studies have found that the factors affecting the saturation solubility of air in water are temperature and pressure, and the above-mentioned prior application cannot provide a stable water inlet pressure, thereby affecting the concentration of micro-nano bubbles

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