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Characteristics and application status of waterwheel aerator

2021-09-13 09:25:19
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As an aquaculture equipment with the same name as the impeller type aerator, the waterwheel aerator has its own characteristics and application range. The waterwheel aerator is powered by an electric motor and decelerates through a reducer to drive the impeller to rotate. When working, the blades on the impeller are partially or completely immersed in water. Next, take a look at the application status and characteristics of waterwheel aerators.


In the process of aquaculture, bait impurities and fish and shrimp excrement will form a certain bottom in the water. This bottom has its own advantages and disadvantages for the growth of fish and shrimp. The appearance and application of aerators is to reduce the disadvantages and increase the growth of fish and shrimp. help. The use of aerators for aeration is the most common and effective measure to improve the water quality of shrimp ponds. Commonly used aerators include turbo-type aerators, waterwheel type impellers, etc. Although the structures are different, the purpose is the same. ; Through mechanical methods, the oxygen-deficient water bodies increase the amount of dissolved oxygen and provide a favorable living environment for shrimps and other organisms. The most commonly used are impeller type and waterwheel type. The application of waterwheel type aerators is becoming more and more common in South China.



The working principle of the waterwheel type aerator is that the waterwheel type aerator uses blades to hit the water body. On the one hand, it lifts the lower layer of water until the water body is broken into splashes, which are splashed into the atmosphere. After increasing the amount of dissolved oxygen, it will fall back to the water body by gravity. Pool water; on the other hand, the pool water is pushed to flow, forming a circulation, and transporting water with sufficient dissolved oxygen to all parts of the shrimp pond, forming a relatively uniform distribution of dissolved oxygen.


The major feature of the waterwheel type aerator is to make the pool water form a circulation, so that the DO value of the whole pool can be consistent within a certain period of time. The formation and maintenance of circulation require a certain amount of energy, which is determined by the viscous nature of water. The flow of pool water is complicated, the main flow is circulation, and there will be backflow after turning. There is no ready-made model for this kind of flow. The circulation promotes the uniform distribution of DO, and its pressure distribution is conducive to the realization of sewage collection in the center of the shrimp pond. In practical applications, the problems encountered can be briefly summarized as: the influence of the layout of the aerator on the aeration effect, and the influence of the layout of the aerator on the central sewage collection effect: these two problems are related to the shrimp pond. Circulation is closely related.


In some news, I saw that the yellow impeller on the newly installed waterwheel aerator quickly turned over, arousing a strong splash and accelerating the dissolution of oxygen in the air into the water. According to reports, this novel aerator is composed of a motor, a reduction box, a frame, a pontoon, an impeller, etc., and is suitable for aeration in shallow water aquaculture ponds with a depth of 1 meter. There are more and more crab ponds or shrimp ponds. Use this machine to increase oxygen.

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