We have our chiller loop set up per the Pro Chiller diagram with a dedicated recirc pump and a single process pump going to the supply header. A VFD with input from a pressure sensor in the supply line controls the pumps speed.
The pasteurizer at the end of the line sometimes has flow issues if a lot of tanks are open. Could I put in another pump with another VFD and pressure switch for the pasteurizer? The pump would be between the drop from the supply header and the inlet of the cold HX section on the pasteurizer. It could also take a higher pressure than the tanks so the pressure setpoint could be raised.
Any issue with doing this?
Any limit to the number of pumps you can add similar to above for future tank additions that may start to get farther away from the original process pump at the chiller?
The pasteurizer at the end of the line sometimes has flow issues if a lot of tanks are open. Could I put in another pump with another VFD and pressure switch for the pasteurizer? The pump would be between the drop from the supply header and the inlet of the cold HX section on the pasteurizer. It could also take a higher pressure than the tanks so the pressure setpoint could be raised.
Any issue with doing this?
Any limit to the number of pumps you can add similar to above for future tank additions that may start to get farther away from the original process pump at the chiller?
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