Section Ii - Description General Description - Quincy QGV-100 Instruction Manual

Section II - Description
• General Description
• The Compression Cycle
• Air Flow
• Capacity Control System
• Cooling System
• Electrical System
• Control Panel
General Description
Quincy QGV series compressors are
single stage, positive displacement, fluid-
flooded rotary screw compressors with
variable frequency drives. The drive motor
directly drives the male rotor through
a flexible drop out type coupling with
no step up or step down gearing. The
compressor airend contains two precision-
machined rotors, a male rotor with four
lobes in constant mesh with a female
rotor consisting of six flutes. The rotors
are housed in a cast iron cylinder with two
INLET PORT
A) INTAKE
6
FEMALE ROTOR
B) COMPRESSION
Figure 2-1. Compression Cycle
Quincy Compressor-QGV Series
parallel adjoining bores. The airend has
an inlet port at the power input end and
a discharge port at the opposite end. All
parts are machined to exacting tolerances.
QGV model compressors use positive
pressure in the reservoir to circulate the
compressor fluid through the system.
All compressor components are mounted
on a heavy-duty steel frame. Controls and
indicators are arranged on a control panel
and acoustical cabinets are available to
reduce sound levels.
CYLINDER
MALE
ROTOR
DISCHARGE PORT
C) DISCHARGE