Regarding the ice machine oil pump bypass problem
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Please ask the gods: What is the function of the ice machine oil pump bypass (with check valve)? How to use? Thanks! (Pipeline inside the red line)
It's for adjusting the oil pressure, right:) I should just post all the oil circuit diagrams.
Adjusting the flow rate also has a protective effect.
Thank you all! ! ! The original picture is like this, but I don’t know the function of the oil circuit in the red circle, and I am not sure whether the two in the red circle are check valves.
Regarding the oil circuit inside the red line, my humble opinion: The oil pump provides the initial oil temperature to the oil. After the ice machine starts running normally, the oil pump can be deactivated, and then the lubrication of the machine head is maintained by the oil supply in the red coil and the exhaust pressure. Please enlighten me, thank you!
Your diagram is only a part, not a complete oil supply circulation system. If it is an equipment with an auxiliary oil pump, it must have a main oil pump (machine head pump) and related lubricating oil flow, plus a pressure sampling point to a pressure relay. If the pressure is higher than the set value, the auxiliary oil pump will be powered off. It is recommended to improve it carefully to facilitate discussion. Or you can put this issue aside for a while, and then comment on it after you fully understand it.
After the compressor is running normally, the oil pump is shut down and the oil is bypassed. Oil supply by pressure difference