Permanent magnet frequency-conversion waterwheel-type aerator

Abstract

The invention belongs to the technical field of fishing gears for aquatic products, and particularly relates to a permanent magnet frequency-conversion waterwheel-type aerator. The permanent magnet frequency-conversion waterwheel-type aerator comprises several floating bodies, the floating bodies are connected through a fixed base arranged above the floating bodies, a driving motor is further arranged above the floating bodies, driving shafts extend to the two sides of the motor, transmission shafts are connected to the driving shafts at the two sides and provided with at least one impeller; apermanent magnet frequency-conversion motor is adopted as the driving motor, and comprises a frequency converter used for controlling the rotation speed of the motor. The permanent magnet frequency-conversion motor is adopted as the driving motor on the waterwheel-type aerator and comprises the frequency converter, the rotation speed of the motor can be controlled through the adjustment of the frequency converter, the rotation speed of the impellers is changed correspondingly, and thus the aerating speed of the aerator can be adjusted; by means of the adoption of the permanent magnet motor, the energy consumption is reduced for the aerator, and the working efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of aquatic fishing gear, and particularly relates to a permanent magnet variable frequency waterwheel type aerator. Background technique [0002] The aerator is a device for survival and growth of fish and shrimp in aquaculture. The existing mechanical aerators mainly include three types: waterwheel type, impeller type and water spray type. Among them, the waterwheel type aerator is rotated by the impeller. , the water is driven out of the water in the form of a waterwheel, making it come into contact with the air and dissolving a large amount of air. The airflow formed by the rotation of the impeller can also accelerate the dissolution of the air. Moreover, the waterwheel type can cause a directional flow of water, which is very beneficial to the cultivation of some aquatic products. Therefore, the waterwheel type aerator is also widely used in the field of fishing gear. [0003] However, the current wate...

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Problems solved by technology

[0003] However, the waterwheel aerators currently on the market use manual control methods, which cannot make a preliminary judgment on the oxygen content in the fish pond, which leads to the fact that it is obvious that the aeration is only turned on when the fish pond is hypoxic. Invisibly, it also caused some damage to the aquatic products. The start-up time of the aerator is

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