国产600MVV75D亚临界机组热耗率偏高原因分析及解决办法

来源 :2016年中国电机工程学会年会 | 被引量 : 0次 | 上传用户:zhufeng19791123
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为扎实有效落实好节能减排的具体措施,具体分析某电厂3号机组热耗率偏高的原因,调研同类型机组存在的共性问题,探讨汽封改造的最佳方案,提出通过揭缸提效等措施降低汽轮机热耗率,提高机组运行经济性的解决办法.
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某厂引进法国阿尔斯通技术生产制造的亚临界、一次中间再热、三缸双排汽、凝汽式汽轮机组进行增容改造研究,发现汽轮机通流部分增容改造的同时,需要配合锅炉、发电机及相应的重要主辅设备进行适应性的改造.增容改造以改造前的性能试验及历史数据对重要的主辅机进行定量核算,确定其对汽轮机增容改造的适应性.研究表明,汽轮发电机组由330MW增容至360MW,需要对锅炉、发电机、主变、励磁变、送风机、给水泵、7号高压加