600MW直接空冷机组热力系统的分析与评价  

Exergy Analysis and Assessment on Thermodynamic System of 600MW Direct Air-cooled Unit

作　　者：蒋爱华[1] 蒋琪琳[1] 杜金魁 余煌[1] 

机构地区：[1]中南大学能源科学与工程学院,长沙410083 [2]陕西国华锦界能源有限责任公司,西安710049

出　　处：《汽轮机技术》2011年第2期107-109,共3页Turbine Technology

摘　　要：为揭示直接空冷机组热力系统的不可逆损失的机理和挖掘其节能潜力,对600MW直接空冷机组的热力系统进行了分析和节能评价。结果表明:600MW直接空冷机组的目的效率为39.08%,总损失占60.92%。凝汽器的损系数为6.11%,而相同容量水冷机组的凝汽器损系数仅为2.23%,因此,必须对凝汽器采取节能措施,提高直接空冷机组的整体效率。In order to reveal mechanisms of the irreversible exergy loss of the thermodynamic system of a direct air-cooled unit and explore the energy saving potential, exergy analysis and energy-saving assessment were performed to the thermodynamic system of a 600MW direct air-cooled unit. The results show that： the exergy efficiency of 600MW direct air- cooled units is 39.08%, the total exergy loss accounts for 60.92%. The exergy loss coefficient of the condenser of the unit is 6.11% , and the same item of water cooled units of the same capacity is only 2.23%, so some energy-saving measures must be taken for the condenser to improve exergy efficiency of direct air-cooling units.

关 键 词：600MW 直接空冷机组 热力系统 分析 节能 

分 类 号：TK123[动力工程及工程热物理—工程热物理]