How to select the calculation formula of Roots blower for aquaculture?

 Roots blower selected for aquaculture. It can be estimated by the model selection formula of aquaculture oxygenation, and the inlet volume flow Qs=the volume of pool water X1.5% or more (m3/h)

Roots blower oxygenation is widely used in aquaculture, mainly for bottom aeration. Generally, the number of aeration discs installed in the aquaculture pond of 10 mu land is about 35-40. In the case of water depth of 2 meters, it only needs to be equipped with Jingong 65 with a 2.2kw Roots blower.

Roots blower is widely used in aquaculture industry because of its advantages such as large air volume, suitable pressure, clean output gas and no oil dust. Aeration with Roots blower can increase the content of dissolved oxygen in water, which plays a positive role in purifying water quality and promoting the growth of aquaculture. For aquaculture industry personnel, it is a problem to select the appropriate Roots blower model. How to select appropriate Roots blower, and what fan parameters should be considered when selecting Roots blower?

Application occasions of three blade roots blower in aquaculture

Generally, users need to calculate the required aeration air volume and air pressure according to their own breeding species, breeding area, water depth, breeding density, aeration mode, length and diameter of gas transmission pipe, local loss of bubbles and other data, and then according to the number of Roots blowers they need, these data should be determined before selecting Roots blowers. If the air volume and air pressure of Roots blower cannot meet the requirements, the pool cannot be fully aerated.

Generally, aquaculture practitioners know that aquaculture can be roughly divided into greenhouse aquaculture and open-air aquaculture. There are differences in the selection of Roots blower between shed farming and open-air farming, which is related to the calculation of the air volume of Roots blower. Different farming methods use different calculation methods.

Let's first look at the selection of Roots blower in the shed, and calculate the fan parameters according to the pipe laying and ponding area in the shed. The laying of greenhouse pipes is generally divided into bottom aeration and top aeration. Bottom aeration is basically divided into two types: PVC pipe drilling or bottom aeration disk. If the perforated PVC pipe is used for drilling, the selection method of environmentally friendly water treatment aeration can generally be followed when selecting Roots blower. If the bottom aeration disk is selected, the air volume is calculated according to the number of aeration disks in each pool. Aeration on the tank is basically suspended nanotube or self sinking nanotube aeration, and the air volume shall be calculated according to the length of nanotube and the number of nanotubes distributed in each tank.

Let's take a look at the selection of Roots blower for open-air farming. Open air aquaculture is basically a large pond, water area or pond with large area. This culture method generally uses nanotube aeration or nanotube aeration disk. When adopting this cultivation method, the air volume of roots blower needs to be determined according to the floor area, the length of nanotubes used or the number of aeration discs. Whether in greenhouses or open air aquaculture, too large or too small air volume will affect the use and aeration effect, so it is very important to calculate the air volume correctly.

After the air volume and pressure of Roots blower are determined, the next step is to select the motor power, that is, select the appropriate motor power according to the air volume and pressure. If the motor power is too small or too large, the aeration will be affected. If the motor is too small, the purpose of reasonable and effective aeration of Roots blower cannot be achieved. If the motor is too large, the equipment price will be too high and power resources will be wasted in the later stage.

These are the parameters to be considered when selecting Roots blower for aquaculture. If you are an experienced aquaculture customer, you can generally quote these parameters directly. Roots blower manufacturers can select fans according to the fan selection table. However, if you encounter an inexperienced user, you need to explain the breeding variety, breeding area, water depth, breeding density, aeration method, length of trachea, diameter and other data. To the fan manufacturer, while Roots fan manufacturer will give reasonable opinions and suggestions based on experience to help customers select models.

Conclusion: In the selection of Roots blower for aquaculture, the air volume and pressure of Roots blower are essential. In a word, the appropriate Roots blower model should be selected according to the breeding scale, breeding method and other conditions.