Feedwater heaters for thermal power plants0 pages

HEAT EXCHANGERS OFFERING
Feedwater Heater
Alstom closed feedwater
heaters are built to
meet high reliability
requirements and
designed for a large
number of cold and
warm starts, with very
short shutdown and
start-up times.
Highest reliability,
flexibility and availability
for your nuclear plants
The Alstom approach to feedwater heater design utilizes a comprehensive set
of precautions, practices and expertise, relying on a safe and proven design
developed from many decades of experience and feedback. Our extensive
experience in equipment design for fossil fuel and nuclear power plants enables
us to meet the unique demands of any application. Our conservative design
features provide equipment of the highest reliability and availability in the world.
Customer benefits
eXPERIENCE
Vast experience in Feedwater Heater design, which includes
duplex heaters, and heaters designed for horizontal and
vertical orientations.
Over 800 feedwater heaters provided over the past
20 years, including: 460 LP, 360 HP, of which 189 for
nuclear power plants.
Historic dominance for feedwater heaters supplied
to French nuclear industry with 648 heaters supplied
from 1977 – 1990.
Performance
• ccurate partitioning of heat exchange area between
A
desuperheating, condensing, and drain cooling zones
ensures optimum performance.
• ustom software designed to analyze each zone within
C
the heater enables us to provide equipment performance
guarantees exceeding normal industry standards.
• esign practices incorporate experience from decades
D
of equipment supply and feedback from operational
experience.
Design Flexibility
• Alstom’s international supply base allows us to provide
equipment complying with all global pressure vessel design
codes.
• Experience allows Alstom engineers to customize solutions
to meet the unique challenges of retrofit applications.
Reliability & Availability
Conservative design features provide for long life and minimal
maintenance
• Velocities are controlled to prevent potential for vibration
failures in all zones (limited to 50% of critical velocity).
• Internal standards for steam velocity within condensing
zone are more conservative than industry standard by 10 to
20%, minimizing FAC potential.
• Bundle design eliminates direct contact between shell and
tube support plates, to avoid any damage during insertion in
fabrication and maintenance.
• Rigid bundle structure enables easier and safer handling.
Alstom closed feedwater heaters are built to meet high
reliability requirements and designed for a large number of cold
and warm starts, with very short shutdown and start-up times.
TPW/BPROS/CNDNSR12/eng/THP/06.12/FR/7695 - © ALSTOM 2012. All rights reserved. Information contained in this document is indicative only. No representation or
warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances.
It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.