The main reason for the pressure reduction of Roots blower is that the clearance between impellers, between impellers and wallboards, and between impellers and casing increases with the increase of clearance. Roots blower is a mandatory gas conveying equipment, and the pressure presented by Roots blower is the front resistance, which is often referred to as back pressure. The increase of clearance will lead to serious gas backflow (increase of internal leakage), resulting in the reduction of negative pressure and the appearance of pressure reduction.
Other reasons for pressure reduction: the sealing is reduced. If there is gas leakage in Roots blower or pipeline, it will affect the pressure value of Roots blower. Serious leakage will naturally cause the pressure to fail to reach the rated standard. The pressure drop of Roots blower is often caused by other faults. If the pressure drop is too large during use, it should be checked and repaired in time to ensure the normal operation of Roots blower.
1. Cause of noise expansion
Roots blower has been used for more than ten years, and its overall compactness is reduced. The anchor bolts are loose, the muffler is brittle, and the gap deviation between each spare part is enlarged, leading to the noise of Roots blower getting bigger and bigger.
2. Reduced working pressure
The key reason for the decrease of the working pressure of Roots blower is: the gap between the centrifugal impeller and the centrifugal impeller, between the centrifugal impeller and the plate wall, and between the centrifugal impeller and the shell is enlarged. Roots blower is a mechanical equipment for forced steam transportation. The working pressure displayed by Roots blower is the straight forward friction resistance, which is often called condensing type. The expansion of the gap will cause serious steam flow back (expansion of internal leakage), resulting in the reduction of air pressure and the reduction of working pressure.
Other reasons for the decrease of working pressure: the decrease of airtightness, whether it is the Roots blower or the pipeline, if there is steam leakage, it is harmful to the working pressure value of Roots blower. The leakage is relatively serious, and the working pressure certainly cannot meet the rated value specification.
3. Exhaust air volume is too small
The exhaust air volume is too small and the gap of Roots blower is too large. The gap expands and the internal leakage is relatively serious, which will result in the reduction of exhaust air volume. Similarly, in the whole process of transporting the steam body, if the pipeline leaks, the exhaust air volume will also be reduced.
Small exhaust air volume may also be caused by pipeline blockage, which is generally associated with high-pressure and temperature distributed systems. In order to avoid pipeline blockage, regular maintenance of Roots blower is very necessary.
I believe that after reading the above content, you should also understand what causes the pressure reduction of Roots blower. I hope it will help you.
Text label: Roots blower
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