Axial flow compressor throat pressure difference
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Why does an axial flow compressor have a pressure difference monitoring point at the throat? What are the purposes and principles behind monitoring this pressure difference?
The pressure difference at the fan’s throat is proportional to the air volume, and it is used for backflow protection; our fans shut down when the pressure difference at the throat reaches 2 kPa. It seems that this parameter has two setting points; after measuring the pressures at these two points, the pressure difference at the throat is calculated.
The fan stops operating when the differential pressure at its throat reaches 2 kPa; in other words, there is a interlock in place. So, when starting the fan, does this interlock need to be disabled first? Is it in use during normal operation?