It is for a situation where is needed steam at two (or three) pressure levels. There it is possible to install a steam back-pressure turbine with controlled extraction(s). High pressure steam is conduct from the boiler to the turbine wheresteam expand to the higher of the desired pressures to pass the first section. All the steam produced in the boiler is used to generate electricity. Part of the steam is discharged through the neck for consumption and the remaining part of the steam is used in the second section for electricity generation.The steam pressure is reduced to the lower in the second section of the required steam pressures. All steam is optimally used for electricity generation, taking into account the consumption at each pressure level.
For cases where heat is needed and it is preferable also to produce electricity by condensing mode. It can also be used to control the entire boiler-turbine-heat consumer system when there is a fluctuation in heat consumption and these rapid changes would be problematic to control on the boiler. Excess steam is then used in the condensing section for electrical production.
Multistage steam condensing turbine with controled extraction for power output from 6000kW to 13500kW. Standard design with axial steam flow.Steam flow is controled by set of control valves. There is nozzle governing for high efficiency in wide range of steam flow. High speed design with gearbox reduce size of turbine case and help for high...
Multistage steam condensing turbine with controled extraction for power output from 13500kW to 20000kW. Standard design with axial steam flow.Steam flow is controled by set of control valves. There is nozzle governing for high efficiency in wide range of steam flow. High speed design with gearbox reduce size of turbine case and help for high...
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