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| Industry Segments |
| Energy Technology |
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Control Systems for the Turbine Sector
In cooperation with the German turbine construction industry, Siemens in particular, Bosch Rexroth has replaced the previously used low-pressure control concept with an innovative high pressure range of 100 to 160 bar. This concept applies especially to the applications of gas and steam turbines.
The advantage of gas turbines over steam turbines is that the entire thermal power can be controlled via the fuel quantity. For mastering the turbine in terms of control and safety, only various systems are required in the fuel circuit.
Generally, gas turbines can be provided with two fuel systems for natural gas or fuel oil. The equipment depends on the final customer´s wishes.
The required control and safety equipment must be rated for different operating methods. It consists of oil and gas valves which are actuated by hydraulic cylinders and controls by Bosch Rexroth. In contrast to gas turbines, with steam turbines, the entire thermal power of the turbine has to be controlled by safety and control equipment.
The nominal widths of steam valves, pressures and temperatures are many times higher than that of gas turbines. The hydraulic cylinders used are therefore rated for a higher power demand and provided with larger diameters and spring packages.
These components cover the power range of 60 to 240 MW for gas turbines and 50 to 1,000 MW for steam turbines. |
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