Variable-speed drives for the oil,
gas and petrochemical industry
We give 100 % –
even under toughest conditions
Voith Turbo hydrodynamic drives are in service in the oil, gas and petrochemical industry under the toughest conditions around the world.
These drives are installed at facilities from production to transportation to processing. On offshore platforms, natural gas pipelines, crude
oil and liquid pipelines, refineries, petrochemical plants and other
industrial facilities, in the desert, or in arctic environments – Voith
drives are running 24 hours a day, 365 days a year. These environments
require equipment that can operate economically and with maximum
reliability inspite of the difficult operating conditions.
Efficient and reliable drives for controlling pumps
and compressors are a necessity for reduced
operating costs, increased profitability and, above
all, a smooth production process. Variable-speed
drives by Voith Turbo deliver the highest possible
reliability, availability and efficiency. This performance is the result of the companies’ continuous
research and development.
Advantages provided
by the hydrodynamic drives
■
■
■
■
■
■
Powers of 100 to 50 000 kW and speeds of 100 to
20 000 rpm can be transmitted with Voith hydrodynamic variable-speed drives.
■
■
■
■
■
■
Reliability of 99.9 %*
Availability of 99.8 %*
Highest efficiency
Optimum price/performance ratio
Application in explosive and dusty environments
at extreme temperatures
Very long trouble-free operating periods (MTBF)
Compact and robust design
Easy maintenance
Excellent control accuracy and high control
dynamics
Vibration damping
Integrated lube oil system supplying lube oil to
the driver and driven machine
Availability of spare parts guaranteed for many
years
*calculated on the basis of machines in operation
2
Even in toughest conditions
Economic speed control upstream
No matter how tough your requirements are: hot, cold, dust, environments with explosion hazards – Voith offers an economical and at the
same time reliable solution for every application.
Compressor drive unit on oil platform
Nam, North Sea, Vorecon type RWE,
Power 4 573 kW,
Speed 13 211 rpm
Gas lift compressor, Oman, Geared
variable speed coupling type R 19 KGS,
Power 7 880 kW,
Speed 9 571 rpm
Gas pipeline compressor, Thailand
Vorecon type RWE,
Power 9 955 kW,
Speed 9 053 rpm
Gas lift compressors and injection pumps
Pipeline pumps
Geared variable-speed couplings and the
Vorecon are used for speed controlling pumps
and compressors in oil or gas production
facilities. If the natural pressure of the field is no
longer sufficient, water or gas is pumped into the
producing formations at high pressures. As a
result, remaining oil or gas is pushed to the
surface. Voith drives provide a stepless control of
the required injection flow and pressure.
In pipelines, pump stations overcome pressure
losses, differences in altitude and transportation
of multiple products. Variable-speed turbo couplings provide stepless control resulting in energy
savings, higher service lives of motor and pump,
torsional vibration damping and a more economical operation.
3
Crude oil loading pump, Saudi Arabia
Geared variable speed coupling type R 19 KGL,
Power 10 500 kW,
Speed 1 622 rpm
Gas Pipeline compressor, USA
Vorecon type RWE,
Power 5 560 kW,
Speed 14 000 rpm
Loading pumps
Pipeline compressors
Voith variable-speed couplings allow pumps to be
switched off while the motor is still running, as
well as stepless flow rate control irrespective of
the back pressure or suction pressure.
If distances are long, gas pipelines need flow
control as well as increased pressure. The
variable speed planetary gear Vorecon® with its
high efficiency and the absolute reliability of the
hydrodynamics is the ideal drive unit for pipeline
compressors. Low investment costs, highest
flexibility and significant energy savings as a
result of speed control are further advantages of
this modern drive system. When replacing old
gas turbine drivers with electric motor drives, the
Vorecon offers the possibility of reduced emissions and compliance with the latest environmental
requirements.
4
Variable-speed drives
Applications
Voith Turbo variable-speed drives combined with electric motors are used in a
great variety of installations:
Upstream – Pumps and compressors for
Downstream – Pumps and compressors for
the following applications:
the following applications:
■
■
■
■
■
■
■
■
■
Gas lift
Gas pipelines
FPSO ships
Offshore platforms
LNG
Injection
Crude oil loading
Oil pipelines
Water disposal
■
■
■
■
■
■
Chemical processes
Refrigeration processes
Hydrogen recycling processes
Wet gas units
Delayed Cokers
Refineries
5
Highest reliability
for downstream applications
For turbo compressors, speed control is an effective means of process
adjustment. Electric motors combined with a Vorecon variable-speed
planetary gear or a geared variable-speed coupling have proven to be a
reliable means for speed adjustment.
Complete refrigeration compressor train,
assembled on base frame with integrated
oil supply, Vorecon type RWE,
Power 6 966 kW,
Speed 8 879 rpm
Compressor test facility, China
Vorecon type RWC,
Power 30 000 kW
Speed 6 000 rpm
Plant inlet compressor, Canada
Vorecon type RWE,
Power 7 457 kW,
Speed 11 400 rpm
Refrigeration compressors
Compared to alternative drive systems, such as
frequency inverters, the system offers distinct
advantages: excellent availability and reliability of
the units and high efficiency proven by field testing. In addition, hydrodynamic systems often
have lower investment and maintenance costs as
well as a longer life than electronic speed control
systems.
Refrigeration compressors are used to compress
refrigerants, e.g. propane. The cold generated by
expanding the refrigerant can be used to separate precious hydrocarbons as condensate from
natural gas. With the help of speed control the
process can be adapted steplessly. The Vorecon
enables speed control at high efficiency and
partially relieved start-up of the drive motor.
6
Advantages
Hydrogen Recycle Compressors
Process Compressor
With modern processes, refineries are producing
desulphurized diesel fuel to meet new environmental requirements. To control the required
hydrogen recycle process, speed control of the
compressor is required. The compressors often
run at very high speeds – The Voith Vorecon is
the ideal drive unit for this application.
In the chemical industry process compressors are
used to initiate reactive processes. Such processes need to run without any disturbances or interruptions for several years. Voith geared variablespeed couplings have been proven as highly
reliable drives for these compressors.
Hydrogen Recycle Compressor, Sweden
Vorecon type RWE,
Power 4 200 kW,
Speed 10 450 rpm
Propylene Process Compressor, Germany
Geared variable-speed coupling type R 111 KGS,
Power 12 000 kW,
Speed 4 140 rpm
7
More than just components –
Engineering and Service
Apart from a wide range of products, Voith Turbo offers innovative
engineering and comprehensive field services. With a diverse range of
engineering services, such as performance optimisation, flow and
vibration calculations, and FEM calculations we can help you when
selecting, and designing your drive system. Voith Turbo’s field service
is available anywhere in the world, 24 hours a day. Your advantage:
custom-made solutions for optimum fulfilment of all your process
requirements.
In our company test field, research is carried out
to continually improve our products and test new
technologies and materials. Prior to delivery, all
Voith products are subjected to intensive test runs
Flow calculation
Sample of a FEM calculation for a
base frame
Competence for complete solutions
Because of the experience and services listed
above, we are able to offer our customers complete drive systems – motor, variable-speed drive
and oil supply system – assembled on a single lift
8
skid. This provides you with complete solution
and offers you considerable savings in terms of
transport and installation.
The right solution in all cases –
The Voith product range
Depending on the application, the requirements, the performance or the
output speed, Voith can offer to you a number of different solutions:
Variable-speed planetary gears, geared variable-speed couplings or
variable-speed turbo couplings. Together with you we will find the right
solution for your specific needs.
1 Schematic section Vorecon type RWE
with base frame and oil supply system
2 Schematic section geared variablespeed coupling
3 Schematic section variable-speed
1
Variable-speed planetary gear Vorecon®
turbo coupling
2
The Vorecon is a combination of a hydrodynamic component
and a planetary gear in superimposed design. The innovative
drive system is based on the principle of power splitting which
enables high efficiencies across a wide speed range.
Geared variable-speed coupling
Geared variable-speed couplings combine a hydrodynamic
variable-speed coupling and a gear unit in a joint housing. The
gear can be an increaser or reducer, depending on the application. For very high output speeds, the geared variable-speed
coupling is fitted with an additional gear stage.
3
Variable-speed couplings
Variable-speed turbo couplings offer the easiest hydrodynamic
solution for speed control when the maximum output speed
equals the motor speed. The speed of the driven machine can
be controlled steplessly and dynamically.
Cr 271 en, aik / WA, 03.2010, 2.000. Dimensions and illustrations without obligation. Subject to modifications.
Voith Turbo GmbH & Co. KG
Variable-speed drives
Voithstraße 1
74564 Crailsheim, Germany
Tel. +49 7951 32-0
Fax +49 7951 32-650
vs.drives@voith.com
www.variable-speed.com
www.voithturbo.com