7/27/2019 Diverter Damper Brosur
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For a Combined cycle Power Plant, the power island consists of
Gas Turbine, Heat Recovery Steam Generator(HRSG) and Steam Turbine.
Briey, Hot ue gas leaving the gas turbine is used to generate steam
in the HRSG and this
steam is sent to the steam turbine to generate electricity. The
hot ue gas leaving the gas turbine can either be released to
the atmosphere at simple cycle mode or diverted to HRSG to
maintain above explained combined cycle mode operation.
Also during start up of the HRSG, the hot ue gas shall be
diverted to the HRSG gradually untill the system reaches
optimum regime. For this reason, a special equipment called
Diverter Damper is located between Gas Turbine and
HRSG, to allow diversion of the hot ue gas leaving the gas
turbine and lead the system to work properly.
Being located at the most important part of the system, the
diverter shall resist drag forces, & thermal stresses
caused
by the hot ue gas, the more diverter can achieve optimum goals,
the longer system life can be provided.
ENPRO has designed and manufactured a new Diverter Damper with
state of art and being the most successful of
its generation.
DIVERTER DAMPER
ENPRO Plaza Kader Sok. No: 34 06700 GOP Ankara TURKEYPhone: +90
312 428 66 99 Fax: +90 312 428 66 29 [email protected]
www.enpro.com.tr
The internally insulated system is designed to withstand
drag forces caused by the ue gas at high velocities.
The expansion of the internal liners is optimized to have
higher product life.
The system insulation is provided to have minimum surface
temperature to protect the system and working personel
at the extreme conditions.
The Diverter Damper shaft mechanism is designed to haveinnite
life.
The blade truss system is designed to absorb thermal
expansions within the blade to avoid the blade being
deformed due to temperature differences within the
system hence providing a smooth surface for gas proof
operation.
The sealing design with seal air system is provided to
maintain 100% sealing either in simple cycle or combined
cycle mode.
The diverter damper is designed to allow the system to
operate in modulating mode which means the damper to
be used in cogeneration plants also to allow the system
provide desired amount of steam.
During the design stage, FEM methods are used in every
stage to achieve optimum design characteristics.
The system is designed to de assemble into three parts
which allows the system to be transported easily and also
having no cut in the seal channels etc. in the system that
means no weld work at site other than sealing welds.
