600MW直接空冷机组防冻节能优化运行控制策略研究  

Control Strategy Study on Antifreeze and Energy Saving Optimal Operation of 600MW Direct Air Cooling Unit

作　　者：刘海渊 郭志军 程通锐 LIU Haiyuan;GUO Zhijun;CHENG Tongrui(Shanxi Guohua Jinjie Energy Co.,Ltd.,Yulin 719000,China;Zhongke Nuowei（Beijing）Technology Co.,Ltd.,Beijing 100094,China)

机构地区：[1]陕西国华锦界能源有限责任公司,陕西榆林719000 [2]中科诺维(北京)科技有限公司,北京100094

出　　处：《内蒙古电力技术》2018年第5期19-22,26,共5页Inner Mongolia Electric Power

摘　　要：为了满足直接空冷机组冬季安全、经济运行的要求,通过分析风机电耗率和机组背压之间的关系,结合机组历史运行数据、空冷岛温度分布规律、防冻控制方法,建立了经济运行背压模型,给出了防冻控制方法,并制订了兼顾机组节能运行的优化控制策略。该控制策略在600 MW直接空冷机组上实施后,机组冬季运行背压平均可降低1 kPa,在满足机组防冻安全的基础上实现了经济运行。In order to meet the requirements of the safety and economic operation ofthe direct air cooling unit in winter, through the analysis of the relationship between thewind power consumption rate and the back pressure of the unit, the back pressure modelof the economic operation was established by combining the historical operation data of theunit, the temperature distribution law of the air cooling island and the antifreezing controlmethods. The antifreezing control method was formulated. The optimal control strategy ofunit antifreezing and energy saving operation were taken into account. After theimplementation of the control strategy on 600 MW direct air cooling unit, the back pressureof the unit in winter could be reduced by 1 kPa, and the economic operation was realizedon the basis of meeting the safety of the unit′s anti freezing.

关 键 词：600MW直接空冷机组 背压 风机 防冻 节能 

分 类 号：TK264.1[动力工程及工程热物理—动力机械及工程]