2200M4JE-HO-iS2-N_2014.04.
Screw Compressor i-series
Appendix -2
Basic Flow of the Oil Cooler
The supply of oil to the compressor must be
in the range of 30
°
C to 60
°
C. Therefore, a
cooler for lubricant cooling is necessary
after an oil separator.
Figure app.-2 is the reference flow of the
water-cooled oil cooler.
The heat exchanger can be chosen with shell
and tube type, plate-type, shell and plate-type,
the air-cooled type.
Figure app.-2
Figure app.-3 is the reference flow of the
thermo-siphon oil cooler.
Shell and tube type or plate-type are
general.
Even in the oil cooler of either method,
install the oil cooler of adequate capacity
to cover the oil radiation amount of the
compressor.
Also, design considering a piping
pressure-loss and a refrigerant liquid
water head.
Figure app.-3
Figure app.-4 is the oil cooling system of liquid injection. In this case, the heat exchanger is not
required. The oil is cooled by letting the liquid injection port of the compressor breathe in refrigerant
liquid after decompression.
Figure app.- 4
