Quincy Rotary Screw Vacuum Pump—QGVI Series Quincy Rotary Screw Vacuum Pump QGVI QUINCY COMPRESSOR – USA Q-TECH AIR SYSTEM TECHNOLOGY LTD

Quincy Rotary Screw Vacuum Pump—QGVI Series

Quincy Rotary Screw Vacuum Pump

QGVI

QUINCY COMPRESSOR – USA

Q-TECH AIR SYSTEM TECHNOLOGY LTD


QUINCY COMPRESSOR ： The leader in industrial vacuum technology

·The pioneer in rotary screw vacuum technology ·Advanced vacuum inlet modulation ·Ushered in the era of efficient & durable vacuum pumps for

industrial applications


Various Vacuum Pump Technologies Available in

the Present Day

1 、 Rotary Screw

2 、 Rotary Vane

3 、 Liquid Ring

4 、 Rotary Lobe


Rotary Screw Vacuum Pump

Strengths:1 、 Low loading on bearing, long equipment life2 、 Efficient, high reliability3 、 Minimum vibration, low maintenance costs 4 、 Low fluid top-up5 、 Low fluid carryover 6 、 High temperature shutdown protection7 、 Modulating inlet valve8 、 Air cooled, water cooled options9 、 Complete package, inclusive of controls

Weaknesses:1 、 Large footprint/weight2 、 Sensitive to chemicals and particulates3 、 Rough vacuum only （ 1-0.001TORR ）


Inlet Compression Discharge

Rotary Vane Vacuum Pump

Strengths:1、 Low initial investment2、 Low vibration, low sound3、 Fine vacuum possible4、 Small footprint/weight

Weaknesses:1 、 Short pump life, vanes have to be replaced every 3-5 years2 、 No modulation3 、 Higher fluid carryover 4 、 Sensitive to particulate and liquid contamination5 、 Fluid top-up every 3 months 6 、 Not a complete package

排气

2: 压缩

进气排气

4: 排气

进气排气

3: 升压

进气排气

1: 吸气

气体 Air

进气


Discharge

Part 2: Compression

InletDischarge

Part 4: Exhaust

InletDischarge

Part 3: Overpressure

InletDischarge

Part 1: Suction

Air Air

Inlet

Liquid Ring

Strengths:1 、 Low initial investment 2 、 Long equipment life3 、 Not sensitive to particulates4 、 Capable of handling moisture laden inlet streams5 、 Able to utilise process fluids as liquid ring.

Weaknesses:1 、 Relatively low efficiency ， Sensitive to water temperature2 、 No modulation3 、 Utilise large quantities of water and water disposal is a problem4 、 Not a complete package


Rotation

SuctionPort

DischargePort

Ring of LiquidImpeller

Rotary Lobe

Strengths:1 、 Simple design 2 、 No oil in compression3 、 Low initial investment4 、 Suitable for lower vacuum (<15”H(<15”HgV)gV)

Weaknesses:1 、 Loud operation2 、 No modulation3 、 Lower efficiency ， especially operating above 15”HgV”HgV


1

43

2

Unparalleled Vacuum Technology

Industrial vacuum applications require rugged & efficient vacuum pumps that can operate in harsh enviroments. The reasons the QUINCY QGVI series is – for many - the vacuum pump of choice:

1 – Efficient. Comparing ACFM per input hp, QGVI outperforms all industry standards.

2 – Long life. QGVI are designed with compressor duty bearngs. This translates into extended product life and lower cost of ownership.

3– Controls. The modulating inlet valve provides a dual function: i) to protect site vacuum level ii) provide energy savings

4 – Complete Package. Each QGVI comes complete with full electricals, inlet filtration, base frame and controls. Just plug and play.


Inside the QGVI

Inlet Filtration

Fluid/Air Separation

System

Totally closed steel baseplat

e

Gauge panel

Coolers

Electrical Enclosure

Inlet/Outlet Flange

Connections

Flexible hose (fluid

connection)


Inside the QGVI

Wind Shield

Modulating Inlet Valve

Drive Motor

“C” Flange Connection

Asymmetrical Rotors

Vibration Isolators

Fluid Pre-filter

Thermal Control Valve

Fluid After-filter

Flexible airend discharge pipin

g

Positive Flow Fluid Pump


All New Industrial Exterior Design

Quincy Globalized Design

Attractive Styling

Totally enclosed baseplate and enclosure provide effective sound attenuation

“U” shaped directional discharge vents lower sound caused by air discharge through vents.

Easy-access panels facilitate maintenance


Gauge + Electronic Control System

Both gauge and electronic control

Discharge air temperature, fluid/air separator tank pressure, vacuum gauges

Continuous run/auto-dual capacity control options

High air temperature alarm

Run hours meter

On/off switch

Siemens electronic components


Inlet Filter

Imported from USA

Large filtration surface area, low pressure drop


Modulating Inlet Valve

Pneumatic Controlled. Unlike the butterfly valve, there is no rotation – only translation along a fixed axis. This is simpler and more reliable.

Modulates according to load requirements and maintains vacuum within pre-set levels.

Through modulation, vacuum pump operation is more energy efficient.


Drive System

Direct drive motor and airend.

“C” flange connection between motor and airend allows for permanent shaft alignment.

Flexible coupling between motor and airend. KTR branded, imported from Germany. Vibration is reduced, reliable operation.


Dual Rotor Airend

Quincy Compressor USA was the first to pioneer the use of the dual rotor vacuum pump. Mass production began in 1980.

Rotary screw technology has relatively higher operating efficiency compared to other technology: rotary vane, liquid ring, etc

Quincy’s unique axial flow inlet design enhances operating efficiency.

Oversized rotors （ 204 ， 255 ， 321 ）， slow speed （ <3000rpm ）， long equipment life up to 400,000 hours.


Positive Flow Lubrication

Designed with a positive displacement rotor-driven oil pump.

Superior to a differential pressure lubrication system, adequate lubrication is certain even during unloading or starting.

Longer airend life

Designed with a two-stage fluid filtration system, fluid is first filtered before entering the pump. Fluid is filtered again after leaving the pump prior to entering the airend. This promises total protection for airend and pump.


Fluid Cooling SystemSpecial formulated synthetic fluid ，QUINSYN-PG ， with 8,000 hours life.

Fluid cools the airend which in turn is cooled in the fluid cooler.

Oversized coolers ensure sufficient redundancy in the system for reliable operation in ambient temperatures as high as 43 .℃Thermal control valve regulates fluid temperature entering the airend.

Water cooled/Air cooled options

Piping utilizes SAE “O”-ring fittings for leak-free operations


Fluid/Air Separator

Design is similar to compressor fluid/air separation system, for fluid carryover as low as 3PPM

Tangential entry of air into the bottom half separator tank fitted with vanes for centrifugal separation. Moisture is also knocked out when air impacts the wall and vanes in the tank at speed.

Separator element is imported from USA.


Quincy Rotary Screw

Vacuum Pump

QGVIAdvanced rotary screw technology that is efficient and energy-saving.

Optimized component design for reliability and long life.

Complete controls system that self-regulates to maintain vacuum required.

Easy to install, easy to maintain.

Attractive Styling


Numerous Applications

Electronics

Semiconductor

Printing/Pulp & Paper

Pharmaceutical

Woodworking

Packaging

Some of Our CustomersTSMC (Taiwan Semiconductor Manufacturing Co)

UMC (United Microelectronics Corporation)

Quanta Computer

ChipPac

SIEMENS

Philips Semiconductor

Proconn Technology

AND MANY MORE…


Thank You ！


QUINCY COMPRESSOR – USA

Q-TECH AIR SYSTEM TECHNOLOGY LTD

Documents

Quincy Rotary Screw Vacuum Pump—QGVI Series Quincy Rotary Screw Vacuum Pump QGVI QUINCY COMPRESSOR – USA Q-TECH AIR SYSTEM TECHNOLOGY LTD