F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
F22B 1/18 (2006.01) F01K 23/10 (2006.01)
Patent
CA 2313159
A heat recovery steam generator (14) has a housing (16) defining a horizontally oriented exhaust gas stream (13). The exhaust gas stream (13) passes through a first heat recovery unit (24) having horizontally oriented heat transfer tubes (25) and forced circulation of a heat transfer fluid therethrough. The exhaust gas stream (13) then is passed through an air pollution control assembly (30) having a catalyst for reduction of exhaust emissions. The exhaust gas stream (13) is subsequently passed through a second heat recovery steam generator (26) having vertically oriented heat transfer tubes (33) and natural circulation therethrough.
L'invention concerne un générateur de vapeur (14) à récupération de chaleur, qui comprend un corps (16) définissant un flux de gaz d'échappement (13) orienté horizontalement. Le gaz d'échappement (13) traverse une première unité de récupération de chaleur (24), qui comporte des tubes de transfert de chaleur (25) orientés horizontalement, traversés par une circulation forcée d'un fluide caloporteur; un ensemble antipollution (30), qui comporte un catalyseur permettant de réduire les émissions gazeuses; et un second générateur de vapeur (26) à récupération de chaleur, qui comporte des tubes de transfert de chaleur (33) orientés verticalement, traversés par une circulation naturelle.
Abb Alstom Power Inc.
Alstom Power Inc.
Smart & Biggar
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