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    • 77. 发明专利
    • Steam supply system and steam supply method
    • 蒸汽供应系统和蒸汽供应方法
    • JP2012215340A
    • 2012-11-08
    • JP2011080842
    • 2011-03-31
    • Mitsubishi Heavy Ind LtdNippon Steel CorpTobata Co-Operative Thermal Power Co Inc三菱重工業株式会社戸畑共同火力株式会社新日本製鐵株式会社
    • YANAGIMOTO YOTAROSAKAI TOSHIYUKIYANO KEISHIMITA NAOMAEKAWA HIROAKIYAMAGUCHI ATSUSHIIZUKAWA HIROSHITAKAGI TERUMASA
    • F22G5/06F22G5/02F22G5/12
    • PROBLEM TO BE SOLVED: To provide a steam supply system and method, capable of supplying high pressure steam to the outside while properly coping with variation in a supply amount of the steam supplied to the outside.SOLUTION: This steam supply system 1 includes: a coal fired boiler 2 including a superheater 9 and a reheater 12; a factory supply pipe 17 supplying some of the steam heated by the superheater 9 to the outside; a high pressure turbine 4 driven by the steam other than the steam supplied to the factory supply pipe 17 out of the steam heated by the superheater 9; a low pressure turbine 5 driven by the steam passing through the high pressure turbine 4 and reheated by the reheater 12; and a power generator 6 generating electric power by the rotation output of the high pressure turbine 4 and the low pressure turbine 5. The reheating temperature of the steam reheated in the reheater 12 is adjusted on the basis of the supply amount of the steam passing through the factory supply pipe 17 and the power generation amount required in the power generator 6.
    • 要解决的问题:提供一种蒸汽供应系统和方法,其能够在适当地应对供应到外部的蒸汽的供给量的变化的同时向外部供应高压蒸汽。 该蒸汽供给系统1包括:燃煤锅炉2,包括过热器9和再热器12; 将由过热器9加热的一部分蒸汽供给到外部的工厂供给管17; 由除了由过热器9加热的蒸汽供给到工厂供应管17的蒸汽以外的蒸汽驱动的高压涡轮机4; 由通过高压涡轮机4的蒸汽驱动并被再热器12再加热的低压涡轮机5; 以及通过高压汽轮机4和低压汽轮机5的旋转输出来发电的发电机6.再热器12中再加热的蒸汽的再加热温度根据通过的蒸汽的供给量进行调整 工厂供应管17和发电机6所需的发电量。版权所有(C)2013,JPO&INPIT
    • 80. 发明专利
    • WASTE HEAT RECOVERY BOILER WITH DUCT BURNER
    • JP2001116208A
    • 2001-04-27
    • JP29259899
    • 1999-10-14
    • BABCOCK HITACHI KK
    • KAWAZOE HIROSHIIBUKA HIDEO
    • F23N5/00F22B1/18F22G5/02
    • PROBLEM TO BE SOLVED: To suppress the excessive increase of the temperature of a waste heat recovery boiler inlet duct and the excessive increase of the steam temperature of a superheater outlet. SOLUTION: In a waste heat recovery boiler 7 where in a superheater 8, a vaporizer 9, and an economizer 10 are arranged in this order, along a flow of combustion exhaust gas, a duct burner for reheating boiler water is installed at the inlet of each of the superheater and the vaporizer. A combustion amount at a superheater inlet duct burner 4 is regulated based on the inlet exhaust gas temperature and a superheater outlet steam temperature 13 of the waste heat recovery boiler. A combustion amount at a vaporizer inlet duct burner 5 is regulated based on a saturated steam amount 14. alternatively, arrangement of the super heater 8 and the vaporizer 9 at a passage for a exhaust gas flow is reversed and a boiler inlet, the vaporizer, the superheater and the economizer are installed in this order, and the duct burner is installed at the inlets of the vaporizer and the superheater.