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    • 36. 发明专利
    • Combustor and fuel supply method for combustor
    • 燃烧器和燃料供应方法
    • JP2009210200A
    • 2009-09-17
    • JP2008054230
    • 2008-03-05
    • Hitachi Ltd株式会社日立製作所
    • KOIZUMI HIROMIASAI TOMOHIROINOUE HIROSHINISHIJIMA YASUMASAMURATA EITARO
    • F23R3/36F02C6/00F02C7/22F02C7/228F02C7/232F23R3/28
    • F23R3/36F02C3/22F02C7/222F02C7/232F05D2220/75F23R2900/00002
    • PROBLEM TO BE SOLVED: To suppress a large cost increase and unstable combustion due to the use of two types of fuels when two types of fuels are used, and a gas with heating value lower than that of LNG is supplied to a combustor, since it is necessary to increase a fuel flow rate in accordance with the dropping of a heating value, and then a pressure loss of a fuel nozzle becomes large.
      SOLUTION: The combustor is equipped with: two fuel gas upstream systems 11 supplying two types of fuel gas with different heating values; a three way valve 203 merging the two fuel gas upstream systems 11; a plurality of fuel gas supply systems 210 diverging the fuel gas supplied through the three way valve 203 and supplying the fuel gas to a combustion chamber; and a plurality of burners 51 injecting the fuel gas supplied from the fuel gas supply systems 210 into the combustion chamber in correspondence to respective fuel gas supply systems 210.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了在使用两种类型的燃料时抑制由于使用两种类型的燃料而导致的大量成本增加和不稳定的燃烧,并且将具有低于LNG的热值的气体供应到燃烧器 由于需要根据发热值的下降来提高燃料流量,所以燃料喷嘴的压力损失变大。 解决方案:燃烧器配备有:两个燃料气体上游系统11,其提供具有不同热值的两种类型的燃料气体; 合并两个燃料气体上游系统11的三通阀203; 多个燃料气体供给系统210使通过三通阀203供给的燃料气体发散,并向燃烧室供给燃料气体; 以及多个燃烧器51,其将从燃料气体供应系统210供应的燃料气体相应于相应的燃料气体供应系统210注入燃烧室。版权所有(C)2009,JPO&INPIT