Precise speed control – Fast amortization
Providing the speed your process requires and combining reliable mechanical design with hydrodynamic power transmission, a Vorecon variable speed planetary gear precisely controls the speed of compressors and pumps.
Precise speed control results in significant energy savings compared to throttle or bypass control systems. Furthermore, amortization is fast and usually within just a few years of service.
Customer success story
US-based gas pipeline operator Williams relies on a Vorecon variable speed planetary gear for speed control.
All benefits at a glance
OnCare.Health Vorecon
Are you interested in minimizing maintenance costs and increasing the availability of your critical drivetrain? The answer, OnCare.Health Vorecon!
Unlike other machine protection systems in the power, oil, and gas industries, OnCare.Health Vorecon is self-learning. The data diagnostic system continuously analyzes the machine’s condition and predicts future behavior through accurate signal analysis and data diagnostics.
The self-learning diagnostic system that monitors your Vorecon’s ‘Heartbeat’ in power, oil and gas applications
How the Vorecon works
The Vorecon is located between the drive motor and the driven machine in the driveline
The most significant proportion of Vorecon’s input power flows directly from the input shaft to the output shaft. At the same time, the hydrodynamic torque converter diverts a small proportion of the input power to the output shaft through the superimposing gear. The power splitting principle explained here results in the Vorecon achieving very high efficiency.
Our portfolio
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RWE
Type RWE – Economical and compact
- The torque converter fills immediately after starting the motor and branches off a small proportion of the input power.
- The driven machine is decelerated to a minimum speed.
- A fixed planetary gear transmits the power branched off to the revolving planetary gear (superimposing gear).
- The revolving planetary gear increases the power again.
- Speed control is applied using the adjustable guide vanes in the torque converter.
- The integrated oil system fills the torque converter with operating oil. At the same time, the Vorecon supplies the drive motor and the driven machine with lubricating oil.
- The Vorecon RWE is a cost-effective and straightforward solution for high-speed turbo compressors and boiler feed pumps with a reduced control range.
RWC
Type RWC – For starting-up the motor load-free
- The hydrodynamic coupling is emptied when the drive motor starts and the clutch are opened; this indicates the drive motor and the driven machine are decoupled, and motor start-up is essentially load-free.
- The hydrodynamic coupling is filled after the drive motor is running and begins to transmit power. The driven machine is then gently decelerated to minimum speed.
- The clutch closes and bypasses the hydrodynamic coupling.
- From then on, the Vorecon RWC operates similarly to the Vorecon RWE. The speed control of the driven machine is applied using the adjustable guide vanes in the torque converter.
- The drive motor starts unloaded, and the driven machine can be started under weak power grid conditions.
- Driven machines with a high mass moment of inertia are easier to start up.
RW
Type RW – For a wide range of control
- When starting up the drive motor, the hydrodynamic variable speed coupling is emptied, and the clutch is opened. This means the drive motor and the driven machine are decoupled, and motor start-up is essentially load-free.
- In the lower control range, the hydrodynamic variable speed coupling is filled and transmits power. The torque converter is emptied and thus is non-operational within this control range. The speed control of the driven machine is achieved via the adjustable scoop tube, which determines the filling level of the operating oil in the coupling and, therefore, the power transmitted.
- The retarder (hydrodynamic brake) is filled with oil and keeps the fixed planetary gear at a low speed.
- The clutch closes and bypasses the variable-speed coupling to achieve the upper-speed range.
- The retarder is emptied, and the torque converter is filled.
- From then on, the Vorecon RW operates similarly to the Vorecon RWE. The speed control of the driven machine is applied using the adjustable guide vanes in the torque converter.
- The Vorecon RW is the ideal control combination for driven machines with a comprehensive control range – mainly pumps and blowers
- In addition, the Vorecon RW offers the same advantages as the Vorecon RWC, such as a load-free motor start-up and easy start-up of driven machines with a high mass moment of inertia.
RWE-M
Type RWE-M – Economical and modular
- When starting the motor, the hydrodynamic couplings are filled, and the torque converter is emptied. The hydrodynamic couplings thus connect the stationary gear with the input shaft. This results in a very low speed on the output shaft, and the driven machine takes on a little power. This relieves the motor when starting up.
- After starting up the motor, the hydrodynamic couplings are emptied, and the torque converter is filled. The driven machine is decelerated to a minimum speed.
- From then on, the Vorecon RWC-M operates similarly to the Vorecon RWE-M. The speed control of the driven machine is applied using the adjustable guide vanes in the torque converter.
- The Vorecon RWE-M is a cost-effective and straightforward solution for high-speed turbo compressors and boiler feed pumps with a reduced control range.
- The modular design with horizontally split housing allows service work to be carried out quickly and effectively, which is an essential aspect of offshore systems.
RWC-M
Type RWC-M – The economically-priced modular version for starting up the motor load-free
- When starting the motor, the hydrodynamic couplings are filled, and the torque converter is emptied. The hydrodynamic couplings thus connect the stationary gear with the input shaft. This results in a very low speed on the output shaft, and the driven machine takes on a little power. This relieves the motor when starting up.
- After starting up the motor, the hydrodynamic couplings are emptied, and the torque converter is filled. The driven machine is decelerated to a minimum speed.
- From then on, the Vorecon RWC-M operates similarly to the Vorecon RWE-M. The speed control of the driven machine is applied using the adjustable guide vanes in the torque converter.
- The drive motor starts unloaded. The driven machine can also be started under weak power grid conditions.
- Driven machines with a high mass moment of inertia are easier to start up.
- The modular design with horizontally split housing allows service work to be carried out quickly and effectively, an essential aspect of offshore systems.
Features
- A standard integrated oil system with lube oil supply for the motor and the driven machine
- Optional: An integrated base frame solution
Key technical data
| Rated power | 1 - 50 MW |
| Input speed | 1,500 rpm or 1,800 rpm |
| Rated output speed | Up to 20,000 rpm |
| Speed range | 10% - 105% |
| Installation | Ex & non ex |
References
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t +49 7951 32 1616
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