How to select the suitable model roots blower
I.How to read the selection parameter table.
Qs represents the air volume of the Roots blower, La represents the power demand of the Roots blower, KPa represents the outlet boost of the Roots blower, and the diameter of 125A represents the national standard flange DN125 of the air outlet
blower outlet pressure (boost)
blower air volume parameter: refers to the volume of air entering and exiting through the fan per unit time.
The power parameter of the fan: refers to the power demand of the blower, that is the power of the motor.
II.How to select model.
1. Select by type and model
Roots blowers can be divided into many types, such as Roots blowers with hard material, wear resistance and certain anti-corrosion effect. This type of Roots blowers are generally suitable for power stations, power plants and other places;
The Roots blower with explosion-proof function is generally suitable for places where flammable and explosive gases are generated; while the Roots blower with good ventilation performance and fast exhaust speed is more suitable for places with poor ventilation such as the bottom of a shaft and a tunnel.
2. Choose according to flow rate and speed
The flow of the Roots blower has its own calculation formula, and the accurate flow coefficient can be obtained by calculating the flow of the Roots blower according to the formula. The choice of speed is determined according to the radius and size of the impeller
The model of the Roots blower is composed of letters and numbers, which generally have fixed meanings and can be selected according to your own needs.
3. Choose according to wind pressure and efficiency
Wind pressure is the pressure difference generated when the gas flows through the fan blades, which can be estimated based on measurable data such as air density and pressure coefficient.
Different environments require Roots blowers with different wind pressures, so it is necessary to measure and calculate according to their own environment, so as to obtain the value of wind pressure, and then choose a suitable Roots blower according to the wind pressure value.