Improved aerator

Abstract

The invention discloses an improved aerator, which comprises an impeller, floating bodies and a motor base, wherein the motor is connected with the floating bodies through a bracket, the motor base is provided with a DC brushless motor, and a motor shaft is connected with the impeller. The impeller is coated with a metal anti-corrosion coating, wherein the metal anti-corrosion coating comprises a copper aluminum alloy bottom layer, a nickel aluminum metal middle layer and a sealing paint surface layer, the thickness of the copper aluminum alloy bottom layer is 120 microns, the thickness of the nickel aluminum metal middle layer is 140 microns, and the thickness of the sealing paint surface layer is 160 microns; and the sealing paint is polyurethane top paint. The improved aerator adopts the DC brushless motor to act as a driving motor of the impeller, thereby enabling the equipment to be lower in noise in operation, less in energy consumption and higher in efficiency, and conforming to environmental protection requirements of energy conservation and emission reduction at present.

Description

technical field [0001] The invention relates to an improved aerator. Background technique [0002] Chinese patent application number CN 201110090305.2 disclosed an aerator on July 27, 2011, which includes a motor, a reducer, a first output shaft, a second output shaft, a water wheel and an impeller, a frame, and a floating body. The water wheel is installed at both ends of the first output shaft, and the impeller is installed at the end of the second output shaft. The motor drives the first output shaft and the second output shaft to rotate in different directions through the reducer, thereby driving the water wheel and the impeller to rotate . There are some deficiencies in the aerator with this structure. (1) The aerator can only work at a constant speed. Regardless of the slight or severe hypoxia in the aquaculture pond, the aerator needs to be run at full power, so that the aerator can operate at a constant speed in the aquaculture pond. Slight hypoxia causes unnecessa...

AI Technical Summary

Problems solved by technology

There are some deficiencies in the aerator with this structure. (1) The aerator can only work at a fixed speed. Regardless of the slight or severe hypoxia in the aquaculture pond, the aerator needs to be run at full power, so that the aerator can operate at a constant speed in the aquaculture pond. Slight hypoxia causes unnecessary energy waste; (2) The working voltage of the aerator is AC 220V or 380V, once leakage occurs, it will bring serious economic losses to farmers and even endanger personal safety; (3) The motor must The speed reducer is connected to the impeller, so that the cost of the aerator is increased, and the installation is more troublesome; (4) The motor is an AC motor. If the motor runs at a low voltage, it is easy to heat up and burn out

(5) The aerator is placed in water for a long time, and the impeller will also be in direct contact with water, which will cause the impeller to be corroded by water, causing damage to the impeller and reducing the service life of the impeller

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