Sullair 1107e, Руководство оператора и списки запасных частей

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2.5 COMPRESSOR DISCHARGE
SYSTEM, FUNCTIONAL
DESCRIPTION
Refer to Figure 2-3. The compressor unit discharges the
compressed air/fluid mixture into the combination receiver
tank.
The receiver tank has three basic functions:
1. It acts as a primary fluid separator.
2. Serves as the compressor fluid receiver tank.
3. Houses the final fluid separator.
The compressed air/fluid mixture enters the receiver tank
and flows through an internal baffle system. The direction
of movement is changed and its velocity significantly
reduced, thus causing large droplets of fluid to form and
fall to the bottom of the receiver tank. The fractional
percentage of fluid remaining in the compressed air
collects on the surface of the separator element as the
compressed air flows through the separator. A return line
(or scavenge tube) leads from the bottom of the separator
element to a medium pressure region of the compressor
unit. Fluid collecting on the bottom of the separator is
returned to the compressor by a pressure differential
between the receiver tank and the compressor. A visual
sight glass is located on the return line to observe this fluid
flow. There is also an orifice in this return line (protected
by a strainer) to assure proper flow. The separator system
reduces the fluid carry-over to less than 1 ppm (parts per
million) for Sullube or 2 ppm for 24KT. A message on the
controller indicates if abnormal pressure drop through the
separator develops. At this time, separator element
replacement is necessary.
A minimum pressure/check valve, located downstream
from the separator, assures a minimum receiver tank
pressure of 50 psig (3.4 bar) during loaded conditions.
This pressure is necessary for proper air/fluid separation
and proper fluid circulation.
A terminal check valve is incorporated into the minimum
pressure/check valve to prevent compressed air in the
service line from bleeding back into the receiver tank on
shutdown and during operation of the compressor in an
unloaded condition.
A pressure relief valve (located on the wet side of the
separator) is set to open if the receiver tank pressure
exceeds the receiver tank rating. A temperature switch will
shut down the compressor if the discharge temperature
reaches 235˚F (113˚C).
WARNING
DO NOT remove caps, plugs, and/or
other components when compressor
is running or pressurized.
Stop compressor and relieve all
internal pressure before doing so.
Fluid is added to the receiver tank via a capped fluid filler
opening, placed on the inlet housing to prevent overfilling
of the receiver tank. A sight glass enables the operator to
visually monitor the receiver tank fluid level.
SECTION 2
10
1100e, 1500e, 1800e Operator’s Manual and Parts List
®
SULLAIR
®