A kind of superpressure aeration device and its application

Abstract

The invention provides an overpressure aeration device, comprising a high-pressure liquid chamber, a high-pressure air chamber disposed in the high-pressure liquid chamber, a gas-liquid mixing chamber connected to the high-pressure liquid chamber, and a nozzle connected to the gas-liquid mixing chamber; The surface of the high-pressure air chamber is provided with a number of air holes for feeding gas into the high-pressure liquid chamber; a first check valve is arranged between the high-pressure liquid chamber and the gas-liquid mixing chamber, and the first check valve is used to block the flow of air in the gas-liquid mixing chamber. The liquid returns to the high-pressure liquid chamber, and the pressure of the pressurized gas is P G , the pressure of the pressurized liquid is P L , P G :P L =1~1.5; the opening pressure of the first check valve is P 1 , P 1 =P L . The invention also provides the use of the superpressure aeration device, which is used in the plant foliar spraying system of the wind atomization system. The super-pressure aeration device of the present invention realizes ultra-fine and uniform dispersion of air bubbles in the liquid, and can achieve good results when applied to fields such as wind atomization and liquid surface spraying.

Description

technical field [0001] The invention relates to the field of aeration devices, in particular to an overpressure aeration device and its application. Background technique [0002] The aeration device is a device that adds gas to the liquid. The aeration device is mostly used in the sewage treatment system to blow air into the wastewater to supply oxygen to the activated sludge. It can also be used in the atomization system to improve the atomization of the liquid. Effect. [0003] Existing aeration devices can be divided into two categories, namely large and medium bubble type aeration devices and ultrafine bubble type aeration devices. The bubbles of the large and medium bubble type aeration device are relatively large, the bubbles rise quickly in the liquid, and the residence time is short, so they cannot play the role of oxygen supply well; while the bubbles of the ultra-micro bubble aeration device are small, and the pressure is relatively low. Low air bubbles are easy ...

AI Technical Summary

Problems solved by technology

The bubbles of the large and medium bubble type aeration device are relatively large, the bubbles rise quickly in the liquid, and the residence time is short, so they cannot play the role of oxygen supply well; while the bubbles of the ultra-micro bubble aeration device are small, the pressure is relatively high Low air bubbles are easy to gather and agglomerate in the liquid, and cannot be evenly dispersed in the liquid, thus affecting the aeration effect

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