SSR Roots blower for sewage aeration

No matter any factory, it will more or less eliminate the non quantitative sewage, and the environmental pollution can not be ignored. If the sewage is not treated and discharged directly, the pollution to the environment is self-evident. For the sewage treatment plant, the sewage is aerated by roots blower, and the effluent quality will meet the national discharge standard. The SSR roots blower becomes an indispensable tool in the sewage treatment industry.

The blast aeration equipment is composed of air diffusion device, pressure device and conveying pipeline, The air pressurization device includes a blower and an air purification system. In the application process, the staff need to make clear the air supply volume of the blower according to the actual oxygen demand and mixing conditions. At the same time, they need to ensure that the air supply pressure of the blower is higher than the friction loss of the pipeline system and the static pressure of the air diffusion device, so as to ensure that the gas can be successfully delivered to the water body The supply pipeline mainly includes the gas transmission pipe, the main pipe and branch pipe in the aeration tank, etc.; the air diffusion device occupies a more important position in the aeration equipment, which can divide the gas into different sizes of bubbles according to the actual needs, so that the gas can fully contact with the water body, thus improving the sewage treatment effect.

Disassembly drawing of Roots blower

The blast aeration equipment is composed of air diffusion device, pressure device and conveying pipeline, The air pressurization device includes a blower and an air purification system. In the application process, the staff need to make clear the air supply volume of the blower according to the actual oxygen demand and mixing conditions. At the same time, they need to ensure that the air supply pressure of the blower is higher than the friction loss of the pipeline system and the static pressure of the air diffusion device, so as to ensure that the gas can be successfully delivered to the water body The supply pipeline mainly includes the gas transmission pipe, the main pipe and branch pipe in the aeration tank, etc.; the air diffusion device occupies a more important position in the aeration equipment, which can divide the gas into different sizes of bubbles according to the actual needs, so that the gas can fully contact with the water body, thus improving the sewage treatment effect.

The air volume of SSR Roots blower refers to the air volume under the standard air inlet state. The so-called standard state is that the temperature is 20 ℃, the absolute pressure is 101.3kPa, and the relative humidity is 65%.

ssr-roots-blower-for-sewage-aeration

The air volume of Roots fan in reference state (temperature 0 ℃, absolute pressure 101.3kPa), generally expressed in Nm3 / min. When the air inlet pressure is the same, the air volume can be converted to the standard state by the following formula:

QS = QN * 1.0332 QS: standard state air volume QN: reference state air volume

The exhaust state air volume can be converted into standard state air volume by the following formula

Qs=Qd(1.0332+Pd)/1.0332(273+ts)/(273+td)

QD: air volume in exhaust state (m3 / min)

PD: exhaust pressure (kPa)

TS: inlet air temperature Td: exhaust air temperature.

The exhaust pressure of the air volume calculated from the above structure, and then the fan model, diameter, speed and required power can be calculated according to the performance table. The selection range of model parameters of some fans is repeated. From the perspective of cost, it is recommended to select fans with relatively small models, and from the perspective of noise and upgrading space, it is recommended to select fans with relatively large models.

When selecting roots blower, first look at the required pressure (kPa) in the field project, that is, the resistance of the pipeline (kg) or the water level depth of the sewage pool (m). Second, calculate the required flow or air volume (the specification and quantity of the aeration head or the total length of the micro porous nano aeration pipe). Only knowing the required pressure and flow can we choose the most appropriate roots blower model power.

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