Hanbell RC2-AVI Series, Руководство пользователя

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Air-cooled oil cooling (cooling by ambient air)
The basic air-cooled oil cooling system is shown in Figure 7.6. This
method of cooling is indirect cooling which uses ambient air to cool
down the oil, which circulates in the oil cooler.
Figure 7.6: Oil cooling by ambient air
Water-cooled oil cooling (cooling by water)
This cooling method utilizes a shell and tube heat exchanger
and a source of cooled liquid from an external cooling tower or
closed loop evaporative cooler. Once-through water can be
used but results in high water usage. An indirect cooling
system uses a pump to circulate the cooling medium and a
cooling tower or evaporative cooler to reject heat from the
cooling medium. The basic water-cooled oil cooling system is
shown in Figure 7.7.
Figure 7.7: Oil cooling by water
Note:
1. Please decide appropriate oil cooler capacity by referring to HANBELL selection software.
2. The maximum pressure drop allowed in external oil cooler is 1.5 kg/cm
2
.
3. When applying an oil cooler with a compressor, please add appropriate refrigeration oil in accordance with the size
of oil cooler as well as the length of piping.
In the oil cooler, fan is
controlled by oil
temperature of the oil outlet
of compressor.