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Product Name: Turbine Isolation Dampers
Product Description
Sizes to 25' x 25' and Up
Zero Leakage Isolation of Turbine at +/- 15 psi
No Additional Pressure Drop Through Extension Neck
No Air Leakage to Steam Side
Fully Automated Operation
ALSTOM continues to pioneer in the condenser market by offering reliable
solutions as cycle requirements evolve. In many combined cycle, cogeneration
and refuse-recovery plants there is a requirement to operate the boiler while
simultaneously performing maintenance on the steam turbine.
Traditionally this has been accomplished with a separate dump condenser. The
method is costly in both equipment and space and can be fraught with control
and operational problems.
ALSTOM has developed a zero-leakage turbine isolation damper that will allow
the main condenser to accept the steam from the operating boiler, thus
eliminating the dump condenser and attendant systems. The isolation damper is
located in the condenser extension neck and with automatic operation allows
complete isolation typically within 10 minutes or less.
The Steam Turbine Isolation Damper can also be utilized in peak load
applications when process steam is required while the steam turbine is
off-line. The isolation damper maintains vacuum in the condenser during
overnight shutdown providing the following benefits:
conservation of auxiliary boiler steam strictly for process steam supply
(eliminates need for steam supply to the steam turbine gland seals)
eliminates the need to operate condensate and circulating water systems
on overnight shutdown
ancillary equipment for gland steam conditioning can be eliminated
improves performance margin on auxiliary boilers - reduces overall plant
power consumption
Company Details
In terms of orders, presence and multicultural diversity we are the most
international of the world's leading suppliers.
With over 45,000 people in more than 70 countries, we are able to combine our
global expertise with extensive... more
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