Why does the backwashing of the recirculating water side filter cause the other 2 units to operate as well?
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There are 3 bypass filters for the circulating water. The conditions for automatic backwashing are: first, the set time, and second, the pressure difference. When filter No. 3 is backwashed, filters No. 1 and No. 2 are very likely to be backwashed as well. During the backwashing of unit 1, units 2 and 3 do not undergo backwashing. What’s going on here?
It is possible that the water flow rates of the three filters are not identical, with filter No. 1 having a higher flow rate
Is it the distance that causes uneven water flow, or is there some other reason? The valve openings are all the same.
It’s not like this every time, but it’s likely to be so.
Take a look at how PLCs are programmed; this is not a matter of probability, it’s programmed control.
Bro, what do you think of what was said on the 2nd floor? My initial judgment was that.