Product introduction QGD 37-160

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Quincy Rotary Screw Air Compressor QGD 315-400kW
QUINCY COMPRESSOR USA Q-TECH AIR SYSTEM
TECHNOLOGY LTD
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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Quincy Global Direct - QGD

• Quincy Globalized Design
• Attractive Styling
• Ergonomically designed
• Efficient Reliable
• Quiet Operation

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
QGD 315-400kW
Model Model QGD 315 QGD 355 QGD 400
Full Load Drive Motor kW Full Load Drive Motor kW 315 355 400
Capacity m³/min 7bar 61.4 68.4 73.3
Capacity m³/min 8bar 61.1 68.1 73.0
Capacity m³/min 10bar 48.0 60.2 67.3
Rotor Diameter mm Rotor Diameter mm 321 321 321
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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Inside the QGD 315-400
Inlet Air System
Drive Motor
Quincy Airend
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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Inside the QGD 315-400
Coolers
Fluid/Air Separation System
Electrical Control System
Lubricating System /Reservoir
Piping System
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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Inlet Air System
Design of Inlet Air Silencer Compartment

• Inlet Air for the compressor air required for
  cooling the motor is drawn directly from outside
  the enclosure. This raises efficiency and
  improves cooling conditions.
• The entire enclosure and silencer compartment is
  padded with sound absorbing foam to lower sound
  levels.

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Inlet Air System
POWERCORE Inlet Filter Element (Patented
Technology)

• Patented Technology. Performance is 10 times
  better than traditional paper elements. Pressure
  drop is low raises efficiency of the
  compressor.
• Particle removal down to 3 micron at 99.9
  efficiency for complete protection.
• Long service life, easy change-out of filter
  element.

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Inlet Air System
Quincy Positive Closure Inlet Valve

• Capable of modulation with capacity range of 20
  100 , which is higher than machines of similar
  competing lines. The wide modulation band
  ensures stable pressure in air supply, reduces
  energy consumption due to varying load changes
  and extends the life of the motor.
• The positive closure inlet valve is able to
  close totally. During unload, air enters the
  airend from the bypass valve. If there is a
  sudden loss of supply power or in the event of
  emergency stop, the inlet valve completely closes
  and prevents a fluid backflow. The inlet valve
  operates using pressure from the reservoir and
  makes operation stable and reliable.

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
The QUINCY Airend
Axial Flow Inlet

• The directional flow inlet housing chambers the
  air flow towards the rotor housing in an axial
  direction, reducing turbulence that would cause
  an increase in temperature of inlet air.
• Drawing air into a chamber ahead of the rotors
  allows the full length of the rotor to be used.
  The result is improved efficiency by 5 to 7
  over traditional radial flow designs.

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
The QUINCY Airend
Airend Shaft Seal

• Triple lip PTFE shaft seal assembly
• Outer dust seal protects the triple lip seal and
  forms a scavenge cavity.
• Scavenge cavity is linked to the inlet valve via
  a return line and the vacuum ensures no fluid
  leakage.
• The scavenge line is equipped with a check valve
  that prevents any fluid from following from the
  airend to the scavenge cavity when compressor is
  shut down.

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Drive Train

• 6kV, 10kV/3P/50Hz IP23(ODP)motor as
  standard,from renowned Chinese manufacturer?
• 380V, 6kV, 10kV IP54 (TEFC) motors are available
  as options.
• C flange connected motor and airend for
  permanent shaft alignment.
• Direct drive, no belts/ gears/ coupling, hence
  no transmission losses.
• Flexible dropout coupling. Stable reliable
  operation.

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Electronics Controls
Main Electronic Control Components

• 6KV/10KV Direct on line starting as standard.
  Remote reduced voltage starters are available as
  options.
• 380V - Wye-Delta reduced voltage starters as
  standard. Electronic components are SIEMENS
  branded and quality is assured.
• PLC based controller uses standard SIEMENS
  industrial PLC. Reliable and expandable for
  integration with plant network communication.

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Electronics Controls
HMI Control Capabilities

• Uses SIEMENS TD200 HMI,dual language
  display,user-friendly interface
• Logic control of dryer
• Wye-Delta starter is standard.
• Capacity control optionsmodulation
  auto/dual,continuous run,network(6 machines)
• Network control mode ID assigned
• System date and time display.
• Total running and loaded hours operation display
• Continuous monitoring of temperature and
  pressure
• Service timings programmed and display
• Fault alarm display.

• Preset time for motor shutdown in auto/dual mode.
• Auto-restart with programmable time delay
• Fault alarm log with time and fault type
• Operating and alarm parameters with password
  protection
• Industrial standard PLC, expandable and supports
  Profibus and other communications network.

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Control System Upgrade Option

• Uses higher version SIEMENS standard
  industrial PLC,able to network 16 compressors.
• Uses SIEMENS HMI520 colour touchscreen.
• User friendly interface with 4 language options
  English, Chinese, French and Spanish
• In addition to the standard PLC capabilities, it
  can display pressure temperature historical
  graphs.
• Multiple network sequence design and options.

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Electronics Control
Lift Valves Variable Capacity Control Option

• Quincy patented technology lift valves to best
  fulfill full and part load operation.
• Continuous monitoring of changes in system
  pressure rate of change, and using high speed
  PID control operation to automatically control on
  the no. of lift valves opening/closing.
• Control of system pressure to within 0.069bar
  of target pressure.
• Contoured to sit directly against rotor raises
  efficiency and prevents blow-by.

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Fluid/Air Separation System

• All new separation technology, modular
  multiple-separator design, that provides larger
  surface area for fluid/air separation.
• Using centrifugal separation gravity prior to
  separator, the combined effect lowers oil
  carryover to 3 ppm or lower.
• All connecting pipework is designed to the sides
  of the reservoir. Separator element change can
  be accomplished without disconnecting any pipes.
  Design is ergonomic.

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Lubricating System

• Quincy high efficiency glass microfibre fluid
  filter is designed for full flow for total
  protection.
• Imported high quality thermal control valve
  ensures operating conditions are stable and
  constant.

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
QuinSyn Fluids

• Uses Quincy QuinSyn line
• of synthetic fluids
• - standard factory fill
• being QuinSyn- PLUS -fully synthetic fluid
• Varnish free operation
• High viscosity index
• Excellent corrosion protection
• Water holding capability
• Efficient cooling

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Cooling System
Water Cooled as Standard

• (Twin fluid coolers air cooler) design for
  redundancy and extra cooling ensure reliable
  operation in ambient temperatures as high as 46?.
• Aftercooler approach temperature as low as 58?
• Fitted with standard moisture separator for
  99.9 removal of bulk water.

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Cooling System
Moisture Separator

• Imported premium quality moisture separator.
• Centrifugal moisture separator removes 99.9 of
  bulk water.
• Fitted with manual and automatic drain valves.

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Remote Cooler Package
Air Cooled Option

• Designed for remote location. Flexible
  convenient installation.
• Discharge vents at top of cooler package.
  Facilitates hot air discharge ducting or energy
  recovery installations.
• Quiet operation,8082dB(A)?Discharge via top of
  cooler package also helps lower sound levels.
• VFD fan (axial flow) helps lower sound levels.
  Fan speed is automatically regulated to maintain
  system temperature efficient and energy saving.

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Piping System

• Air piping joints are flange connected. Flexible
  hose is suitably used where required. Leak-free
  and fuss-free installation/dismantling.
• Oil piping uses steel pipes, layout is neat.
  Stable and reliable.
• SAE O-ring fittings provide the most reliable
  sealing at joints

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Superior Low Sound, Reduced Vibration Design

• Totally Enclosed Cabinet and Baseplate
• Dedicated silencer compartments for air inlet
  motor cooling.
• Sections of air piping are fitted using flexible
  hose where necessary.
• Direct drive airend and motor are flange
  connected and supported by vibration isolators.

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QUINCY ROTARY SCREW AIR COMPRESSOR QGD 315-400kW
Thank You!
QUINCY COMPRESSOR USA Q-TECH AIR SYSTEM
TECHNOLOGY LTD