An aerator impeller and an aerator having the aerator impeller

Abstract

The invention relates to an aerator impeller, which comprises a conical wheel disc with a central hole and blades. The diameter of the upper end of the conical wheel disc is larger than the diameter of the lower end, and the blades are spirally evenly distributed on the outer wall of the conical wheel disc. There is a drain plate between the blades, and the drain plate is evenly and vertically fixed on the outer wall of the conical wheel disc; the blade is composed of a blade working body and a mounting end, the blade working body and the conical wheel disc are inclined and combined, and the mounting end is inclined The wall is fixed on the outer wall of the conical roulette. The device has dual functions of stirring water and increasing oxygen, high work efficiency, energy saving, low cost, and is easy to popularize and use.

Description

technical field [0001] The invention belongs to the technical field of fish farming machinery, and in particular relates to an aerator impeller and an aerator with the aerator impeller. Background technique [0002] The impeller type aerator was successfully developed by the Shanghai Fishing Machinery Institute in 1972. At present, it has been promoted in nearly 30 provinces and Southeast Asia, and now has tens of millions of units. With the promotion and use of impeller aerators, the yield per mu of pond culture has increased from 5 to 6 hundred catties in the past to 7 to 8 thousand catties. It is called a fish rescue machine and an increase machine by the majority of fishermen. It is a revolution in pond culture. At the same time, it is also the best and indispensable fishery machinery with the best oxygenation effect. [0003] In order to maximize the output, fishermen often install multiple aerators in one pond, so that the output of the pond can be increased. However,...

AI Technical Summary

Problems solved by technology

The structure of the former gearbox is complicated, and the manufacturing cost is high, which is difficult for fishermen to accept; the speed and power of the latter can be reduced due to the installation of frequency converters, but the price of frequency converters is high at this stage, and fishermen cannot accept it, and special frequency conversion motors are required.

Affected by the operating environment, the frequency converter often protects the motor in advance and causes the aerator not to work. Premature protection shutdown threatens the safety of the aquaculture pond, so it is not suitable for aquaculture ponds

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