Installation issues with the displacement probe
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There is a problem with determining the \"0\" reference position for installing the compressor displacement probe. Assuming I am new to this task and don’t know how to set this \"0\" reference position, what methods can be used to find it?
It’s necessary to work in cooperation with the mechanics； The mechanical technicians determine the \"maximum displacement,\" and the intermediate value corresponds to the reference position for the \"0\" position.
Determine the 0 position of the displacement probe based on the position of the fan during operation. This is because the exhaust reaction force generated when the fan impeller is in operation causes the impeller to move.
Reply to 3# s1j2: Before installing the displacement probe, it is necessary to check the equipment’s technical parameters related to play movement. Additionally, the fitter should be involved in taking actual measurements of the play gap on site, and half of these values should be used as the reference for the 0 position. If the end face to be measured is moved to the end farthest from the probe, then the displacement value displayed will be +half of that value. The opposite is true.
We push the shaft to the main thrust bearing and set it as the 0-position reference
Any of the above zero-position references will work. But there is one very important point that must not be overlooked: after setting the position, it is necessary to adjust values such as the alarm interlocks according to different situations. For example, setting the zero point at the main push position and setting it in the middle of the gap are different situations.
Any of the above zero-position references will work. But there is one very important point that must not be overlooked: after setting the position, it is necessary to adjust values such as the alarm interlocks according to different situations. For example, setting the zero point at the main push position and setting it in the middle of the gap are different situations.
What the friend above said is all very good; it turns out it was designed in advance. The key issue now is that I don’t know where the reference point is Is it the midpoint or one of the ends?