Power plants – Combustion products used as motive fluid – With exhaust treatment
Reexamination Certificate
2011-06-21
2011-06-21
Nguyen, Hoang M (Department: 3748)
Power plants
Combustion products used as motive fluid
With exhaust treatment
C060S682000, C060S791000
Reexamination Certificate
active
07963097
ABSTRACT:
A recuperator includes a heating gas duct; an inlet manifold; a discharge manifold; and a once-through heating area disposed in the heating-gas duct through which a heating gas flow is conducted. The once-through heating area is formed from a plurality of first single-row header-and-tube assemblies and a plurality of second single-row header-and-tube assemblies. Each of the plurality of first single-row header-and-tube assemblies including a plurality of first heat exchanger generator tubes is connected in parallel for a through flow of a flow medium therethrough and further includes an inlet header connected to the inlet manifold. Each of the plurality of second single-row header-and-tube assemblies including a plurality of second heat exchanger generator tubes is connected in parallel for a through flow of the flow medium therethrough from respective first heat exchanger generator tubes, and further includes a discharge header connected to the discharge manifold. Each of the inlet headers is connected to the inlet manifold via a respective at least one of a plurality of first link pipes and each of the discharge headers is connected to the discharge manifold via a respective at least one of a plurality of second link pipes. Each of the heat exchanger tubes of each of the first and second single-row header-and-tube assemblies have an inside diameter that is less than an inside diameter of any of the plurality of first and second link pipes.
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PCT International Search Report and the Written Opinion of the International Searching Authority, dated Apr. 21, 2009—(PCT/US2009/030193).
Alstom Technology Ltd
Cantor & Colburn LLP
Nguyen Hoang M
LandOfFree
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