Select fans for your recirculating aquaculture farm?

Select fans for your recirculating aquaculture farm? When designing a factory recirculating aquaculture farm, many people tend to ignore the selection of fans.

In fact, during the source water treatment stage of the fan in the factory circulating water system, the fan aeration treatment can remove the excessive chloride, hydrogen sulfide and other harmful substances in the water source.

In the tail water treatment stage, fan aeration can provide enough oxygen for microorganisms to accelerate the decomposition of organics in the tail water.

In the breeding stage, the aeration of the fan can provide enough oxygen for the breeding organisms to breathe, making high-density breeding possible.

It can be said that fans play an important role in the whole cycle of the factory circulating water system.

At present, there are three types of fans commonly used in recirculating aquaculture farms on the market: Roots fan, turbine fan and high-speed centrifugal fan.

Here, small CAT mainly distinguishes between performance and economy:

In terms of performance indicators, the outlet pressure and air volume of Roots blower are very large, which is suitable for deep pools above 2.5 meters, such as large biochemical filter barrels.

The turbine fan has a large air output, but the air outlet pressure is lower than the Roots fan. It can be used in the front end fish pond and the biochemical filter tank with a small volume at the back end.

High speed centrifugal fan, due to its working principle, although the output air volume is far higher than Roots fan and turbine fan, the outlet air pressure difference is not suitable for pools more than 2.5 meters high, generally only suitable for fish ponds.

In terms of price indicators, although the overall market price of Roots blower is more competitive, turbine blower takes the second place, and centrifugal blower is the most expensive. However, Roots blower is subject to the design principle, and its service life is the shortest of the three.

In conclusion, based on the working principles, performance indicators and use scenarios of the three types of fans, if the biochemical system of the recirculating water aquaculture fishery is deep and large, Roots fan is the best choice.

If the diameter of the fish pond in the aquaculture fishery is more than 8 meters, the centrifugal fan is recommended to be used to match the fan of this kind of large diameter fish pond.

If the diameter of the fish pond in the recirculating aquaculture fishery is not large and the depth of the biochemical filtration system is less than 2.5 meters, it is recommended to use a turbine fan, which is the most cost-effective.