Impeller-type aerator

Abstract

The invention discloses an impeller-type aerator. The impeller-type aerator comprises a frequency conversion controller, a motor, a speed reducer, an impeller, supporting rods and whole-machine floating bodies, wherein the frequency conversion controller, the motor, the speed reducer and the impeller are sequentially connected, the speed reducer is connected with the whole-machine floating bodiesthrough the supporting rods, and the frequency conversion controller converts alternating currents into direct currents to output to the motor. The impeller-type aerator has the advantages that impeller-type aerator is not limited by three-phase electricity, energy and electricity are saved, the aeration effect is good, installation is convenient and rapid, and using is safer.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and in particular relates to an impeller type aerator. Background technique [0002] The aeration machine is a commonly used machine in the fishery and aquaculture industry. It drives the working parts through a power source such as an electric motor or a diesel engine, so that the "oxygen" in the air is quickly transferred to the equipment in the aquaculture water body. The machine is mainly used to increase The oxygen content in the water can ensure that the fish and other organisms in the water will not be hypoxic, and at the same time, it can also inhibit the growth of anaerobic bacteria in the water and prevent the deterioration of the pool water from threatening the living environment of the island fish. The machine generally uses its own air pump to drive air into the water, so as to achieve the purpose of increasing the oxygen content in the water. The use of an aerator can not only ...

AI Technical Summary

Problems solved by technology

The rotor with this structure has the following problems in the manufacturing process: when applying glue to each dovetail groove between the two dovetail groove projections, because of the dovetail groove of the dovetail groove projection, the glue is directly from the outer surface. It is inconvenient to smear, and glue smear is also easy to smear unevenly. When installing, push the magnetic steel sheet 13 from one side of the outer surface 111 of the fitting cylinder, and gradually push the inner surface 131 of the magnetic steel sheet 13 to completely fit the cylinder. The outer surface 111 of the cylinder. During the pushing process, the glue applied on the outer surface of the cylinder is pushed out, so that the glue on the inner surface of the magnetic steel sheet and the outer surface 111 of the cylinder is missing and the glue is uneven, which may cause the process. Repeated glue application affects the firmness between the magnetic steel sheet and the cylinder, reducing the service life of the entire rotor

In addition, this kind of rotor is easy to wear out the magnetic steel sheet during use, and the magnetic steel sheet on the rotor cylinder is easy to degumming, falling off or even cracking

[0005] In traditional aerators, the impellers are mostly made of plastic. The surface of the plastic impeller is provided with a ring of water-feeding blades, and the height of the water-feeding blades is equal to the height of the plastic impeller. The impeller is set at the center of the aerator under the motor. This structure has limited rotation space for the impeller. , the amount of water fetched by the rotation of the water fetching blade is not large, and the amount of oxygen that can be increased is greatly affected by the power of the motor and the size of the impeller. The contact area between the impeller and the air is limited, and the amount of oxygen added to the water body in a unit time is limited, and there is noise during operation. Larger; the plastic impeller is easy to accumulate algae and moss during use, and it is easy to age when placed in water for a long time. The plastic blade needs a certain thickness, so it increases the resistance of rotation, affects the effect of oxygenation, and increases the load power of the motor. The whole three-phase motor has a high load and is easy to burn out; in addition, the impeller-type aerator is generally composed of an impeller, a motor, a control device, several floating bodies, etc., and an impeller is installed under the motor, and the impeller extends below the water surface. The control device realizes the control of the motor, and the rotation of the motor drives the impeller to rotate, and the rotation of the impeller drives the water to splash, so as to realize the purpose of oxygen in the air entering the water body; and in the aerator with this structure, the control device is set together with the motor and the impeller. During the process of impeller rotation and oxygenation, water splashes and easily wets the control device. Once the control device fails, it will cause problems such as electric leakage and aerator stop working. In serious cases, it may cause safety accidents

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