Air compressor airflow issue
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The air compressor is turned on, so why is the air volume sometimes high and sometimes low, with a difference of 1000 in volume? Is it due to the air compressor itself or…
It is related to many factors such as temperature and filter resistance.
This is likely directly related to the ambient temperature, as well as the condition of the flow meter and the filter elements in the inlet, and has little to do with issues related to the unit itself
Being more specific will help get a better response.
First, it is necessary to determine what type of compressor it is What are the corresponding inlet and outlet pressures/temperatures for different volumes of gas? When the air volume changes, it is only through comprehensive consideration of various factors such as how other parameters are affected that analysis can be conducted to provide assistance. Your response is too general; it is recommended to be more detailed.
It is recommended to rule out the possibility of surge first; try increasing the pressure again after completely releasing the pressure. Does this occur under full load or during the pressure increase process? Is the pressure increase speed fast during the operation? Even at high speeds, it can cause surge. Check the filter resistance level, as well as various parameters during compressor operation (bearing temperature, shaft vibration, displacement, etc.). If it is driven by a motor, check whether there are any fluctuations in the motor current and voltage.
The types of air compressors include: centrifugal and positive-displacement. Centrifugal types also include single-stage and multi-stage ones. There are many positive-displacement types, such as piston-type, screw-type, gear-type, vane-type, and so on. Furthermore, as for the power source of the driving device—such as electric motors, steam turbines, and gas engines—it is necessary to determine the type first. It’s better to discuss the issue again.
If the ambient temperatures differ little, the resistance of the molecular sieves is the main factor to consider; it’s impossible for the resistance of the two molecular sieves to be exactly the same, so there will inevitably be some variation in the gas flow rate~~
After accounting for fluctuations in rotational speed, when the guide vane position remains the same, it is basically only related to the pressure in the downstream system. If the tower pressure doesn’t change either, then it’s likely an issue with the instruments; or there might be a problem with the guide vanes or the valves downstream