摘要
• 摘要: 通过分析当前纯凝机组供热改造的主要技术，为2×135 MW超高压纯凝发电机组设计了符合要求的供热改造方案。综合考虑电负荷的调峰要求和主机设备的安全性、安装工期、运行调节等因素，电厂采取在主蒸汽管道、高温再热蒸汽管道、回热蒸汽管道上开孔抽汽，然后利用压力匹配器进行配汽供热，每台机组的工业供热能力可以达到150 t/h。电厂的年均供电标煤耗将从353.4 g/kW·h降低到333.1 g/kW·h，节能效益显著。

   

  Abstract: This paper designs the feasible scheme of heat-supply reformation for 2×135 MW units by means of analyzing and comparing the current technology of heat-supply reformation. In consideration of the peak loader regulating of power system, the safety of turbine and boiler, the installation time and the unit operation, the power plant uses pressure matcher to inject and mix the main steam, hot-reheat steam and extraction steam for supplying heat, the heat-supply ability of each unit will reach 150 t/h finally. The annual standard coal consumption rate for power supplying in plant will be reduced from 353.4 g/kW·h to 333.1 g/kW·h and the benefit of energy-saving will be remarkable.

   

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