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Analysis of pressure and air volume of Roots blower

发布时间:2025-05-29 11:59人气:
Analysis of pressure and air volume of Roots blower
Dear friend, if you are worried about the pressure and air volume of the Roots blower, don't worry. Today we will delve into this topic and help you understand!
 
Common pain points of pressure and air volume
 
Many users encounter this problem when using Roots blowers:
-Although I chose a "high-power" fan, I found that the air volume is still not enough
-Unstable system pressure leads to significant production fluctuations
-High energy consumption and operating costs exceeding budget
-Frequent overload tripping of the fan affects production continuity
 
These issues often stem from a lack of thorough understanding of the relationship between pressure and air volume.
 
2. Understand the basic principles of Roots blower
 
Roots blower is a type of positive displacement blower, and its working principle is very special:
-Rotate relative to each other inside the casing through two "8" shaped rotors
-Air is enclosed in the space between the rotor and the casing
-As the rotor rotates, air is "pushed" from the inlet to the outlet
 
This unique working principle determines:
-The air volume mainly depends on the speed and rotor size
-The pressure depends on the system resistance
 
Analysis of the relationship between pressure and air volume
 
There is a key point that needs special attention here:
-The air volume of Roots blower is basically constant and independent of pressure
-But the pressure cannot increase, there is allowable work pressure
-The actual pressure is determined by the resistance of the backend system
 
For example, in daily life:
Just like drinking a beverage with a straw, the suction (pressure) depends on how hard you apply, but the flow (air volume) mainly depends on the thickness of the straw and your suction speed.
 
4 Practical Suggestions for Selection and Use
 
Based on years of experience, I have summarized several practical suggestions:
 
1 * * Selection stage * *:
-First determine the required air volume, then consider the system resistance
-Reserve 10-20 pressure margin
-Consider the impact of altitude on air volume
 
2 * * Installation Phase * *:
-Ensure smooth flow of import and export pipelines
-Install muffler and filter
-Avoid sharp bends and pipe shrinkage
 
3 * * Running phase * *:
-Regularly check the tightness of the belt
-Monitor current and temperature changes
-Timely clean the filter
 
5 Common Problem Solutions
 
When encountering problems, you can troubleshoot as follows:
 
**Insufficient air volume * *:
-Check if the rotational speed meets the standard
-Confirm if the filter is clogged
-Check if there is any leakage in the pipeline
 
**Abnormal pressure * *:
-Check if the system resistance has changed
-Confirm if the valve settings are correct
-Check if the rotor clearance is too large
 
Remember, Roots blower is like a loyal old friend. As long as you understand its temperament and use it reasonably, it will serve you stably and reliably for many years!
 

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