摘要:
Le condensat de vapeur provenant de la vapeur utilisée. pour réchauffer l'eau admise à la chaudière dans des réchauffeurs (R1...R4) est revaporisé par le contact d'échange thermique avec les gaz brûlés provenant de la chaudière (CH), dans des récupérateurs-évaporateurs (RE1...RE3). La vapeur ainsi formée est recyclée pour contribuer au réchauffage de l'eau admise à la chaudière. L'invention s'applique en particulier aux centrales électriques thermiques à turbine à vapeur.
摘要:
Eine Kraftwerksanlage besitzt einen Dampferzeuger (10), in dem Heißdampf für eine Dampfturbineneinrichtung (12) erzeugt wird. Das bei der Verberennung von insbesondere Kohle entstehende Rauchgas wird über einen Luftvorwärmer (33) und eine Rauchgasentschwefelungsanlage (34) einer Ableitung in die Atmosphäre zugeführt. Dadurch, daß die Ableitung als Naturzug-Kühlturm (31) ausgebildet ist, kann zwischen dem Luftvorwärmer und der Rauchgasentschwefelungsanlage (34) Wärme entnommen und entweder dem Dampferzeugungsprozeß oder einem Fernwärmenetz zugeführt werden. Zu diesem Zweck befindet sich zwischen dem Luftvorwärmer (33) und der Rauchgasentschwefelungsanlage (34) ein Wärmetauscher (35).
摘要:
A system providing for heat recovery from exhausted flue gas in a steam generator is described comprising a flue gas outlet conduit defining a flow path for flue gas from a flue gas outlet of a steam generator to a flue gas conduit junction point; a flue gas primary conduit defining a flow path for flue gas from the junction to a primary air preheater; a flue gas secondary conduit defining a flow path for flue gas from the junction to a secondary air preheater; wherein a steam generator process fluid heat exchanger is disposed within the flow path of the flue gas primary conduit upstream of the primary air preheater to recover some heat from the flue gas in advance of the primary air preheater. A method implementing the flow principles embodied in such a system is also described.
摘要:
A thermal power plant 1 including: an exhaust gas system 11; a feed-water system 4; a high-pressure feed-water heater 10 provided to the feed-water system 4; the main economizer 36, which is provided to the secondary side of the high-pressure feed-water heater 10 of the feed-water system 4 and increases the temperature of the feed-water by using the residual heat of the combustion gas from the boiler 2; and a catalytic NOx removal equipment 14, which is provided to the secondary side of the main economizer 36 of the exhaust gas system 11 and the exhaust gas at a required temperature or higher is supplied to; and a sub economizer 40, which is provided between the high-pressure feed-water heater 10 and the main economizer 36 and increases the temperature of water by using the exhaust gas on the secondary side of the NOx removal equipment 14, is provided.
摘要:
A thermal power plant 1 including: an exhaust gas system 11; a feed-water system 4; a high-pressure feed-water heater 10 provided to the feed-water system 4; the main economizer 36, which is provided to the secondary side of the high-pressure feed-water heater 10 of the feed-water system 4 and increases the temperature of the feed-water by using the residual heat of the combustion gas from the boiler 2; and a catalytic NOx removal equipment 14, which is provided to the secondary side of the main economizer 36 of the exhaust gas system 11 and the exhaust gas at a required temperature or higher is supplied to; and a sub economizer 40, which is provided between the high-pressure feed-water heater 10 and the main economizer 36 and increases the temperature of water by using the exhaust gas on the secondary side of the NOx removal equipment 14, is provided.
摘要:
A thermal power plant 1 including: an exhaust gas system 11; a feed-water system 4; a high-pressure feed-water heater 10 provided to the feed-water system 4; the main economizer 36, which is provided to the secondary side of the high-pressure feed-water heater 10 of the feed-water system 4 and increases the temperature of the feed-water by using the residual heat of the combustion gas from the boiler 2; and a catalytic NOx removal equipment 14, which is provided to the secondary side of the main economizer 36 of the exhaust gas system 11 and the exhaust gas at a required temperature or higher is supplied to; and a sub economizer 40, which is provided between the high-pressure feed-water heater 10 and the main economizer 36 and increases the temperature of water by using the exhaust gas on the secondary side of the NOx removal equipment 14, is provided.