Remove the inlet silencer of Roots blower. If we find that the blade is uneven, this wear is caused by returning particles. If there are large particles in the delivered gas, it will impact the impeller of Roots blower, causing blade wear.
In case of negative pressure of roots blower, measures shall be taken to deal with the causes. First of all, the air volume should be properly reduced to avoid negative pressure at the inlet of the high-pressure machine, which may lead to a malignant accident. Then, the causes should be found out and dealt with separately, and the load should be added after the treatment is normal. Reduce the gas volume to a low level, and shut down in an emergency when necessary. When the gas system is handled normally and the gas frame has an upward trend, the exchange system should strive for time to start.
1. The prominent and important feature of the rear blade type is no overload power. It eliminates the need for oversized motors or other drives. The normal working static efficiency range of conventional blades is 65-80%, and the normal working static efficiency range of streamlined design is 80-92%.
2. The front blade type is usually shallow. It operates at a low speed at a given capacity, and the outlet speed is usually low. Its operating characteristics are very poor in many applications, because once the peak pressure of the fan is reached, the power will rise sharply with the decrease of static pressure. The working static efficiency range is 55-75%.
3. The power characteristic of three blade roots blower is no overload. The commonly applied pressure range is 0-76mm hydrostatic pressure. Compared with centrifugal type, blade shaft and pipe shaft with higher outlet speed can be selected. The axial flow fan shall be connected to the pipe through a tapered joint. The peak efficiency range of the tube axis is 30-50%, while the peak efficiency range of the tube axis is 40-65%.
4. Propeller fans usually operate without pipes or ducts on both sides and move air or gas from one large open area to another. The pressure of three blade roots blower is usually very low, and the volume depends on the size, blade spacing, number of blades and speed. According to the fan and its installation, the static efficiency varies from 10% to 50%. With well designed inlet ring and discharge diffuser, the efficiency can reach 50-60%.
I believe that after reading the above contents, you should also have some understanding of the operating characteristics of Roots blower blades. I hope it will be helpful to you.
Text term label: Roots blower
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