F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
F22B 21/34 (2006.01) F22B 29/06 (2006.01) F22B 37/14 (2006.01)
Patent
CA 2368972
A continuous-flow steam generator (2) has a combustion chamber (4) with evaporator tubes (10) for fossil fuel (B), said combustion chamber being followed on the fuel-gas side, via a horizontal gas flue (6), by a vertical gas flue (8). When the continuous-flow steam generator is in operation, temperature differences between the exit region (34) of the combustion chamber (4) and the entry region (32) of the horizontal gas flue (6) are to be particularly low. For this purpose, of a plurality of evaporator tubes (10) capable of being acted upon in parallel by flow medium (S), a number of the evaporator tubes (10) are led through the combustion chamber (4) before their entry into the containment wall (9) of said combustion chamber.
L'invention concerne un générateur de vapeur en continu (2) présentant une chambre de combustion (4) à faisceau évaporateur (10) pour combustible fossile (B), à la suite de laquelle est connectée, côté gaz chauds, via un courant gazeux horizontal (6), un courant gazeux vertical (8). Lorsque le générateur fonctionne, les différences de température entre la zone de sortie (34) de la chambre de combustion (4) et la zone d'entrée (32) du courant gazeux horizontal (6) doivent être particulièrement faibles. A cet effet, l'invention est caractérisée en ce que sur une pluralité de tubes évaporateurs (10) alimentés en parallèle par un fluide en circulation (S), un nombre déterminé de tubes évaporateurs (10) sont guidés à travers la chambre de combustion (4) avant leur entrée dans le mur de pourtour (9) de ladite chambre de combustion (4).
Aktiengesellschaft Siemens
Fetherstonhaugh & Co.
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