电厂冷却系统选取的技术经济分析.pdf

电厂冷却系统选取的技术经济分析 靳海军 孟文俊 白音木仁 （内蒙古电力勘测设计院 内蒙古 呼和浩特 010020 ） [摘要] ：本文介绍了汽机排汽系统的各种冷却方式，冷却方式可以分为：湿冷系统、空冷系 统两类。 根据技术经济比较结果，表凝式间接空冷系统年运行费用总计小于直接空冷系统。表凝 式间接空冷系统总投资费用总计大于直接空冷系统。在煤价为 225 元/t 时，两种空冷系统 年总费用基本相等。单从经济角度讲，煤价为225元/t是两种空冷系统选取的一个分界点。 当煤价大于 225 元/t时，采用间接空冷系统较为合适。当煤价小于 225 元/t时，采用直接 空冷系统较为合适。同时间接空冷系统与直接空冷系统与诸多因素有关，在选取时，既要考 虑业主喜好等主观因素，又要考虑外部条件、技术经济等客观因素。因此间接空冷系统与直 接空冷系统的选取应具体工程具体对待。 [关键词] ：冷却系统 技术经济 Power cooling system selection technical economy analysis JIN HAI jun Meng wen jun Bai yin mu ren ( Inner Mongolia Power Exploration Design Institute, Hohhot010020, Inner Mongolia) Abstract: This article introduced the steam engine exhaust systems each coolant conditions, the coolant conditions may divide into: Wet cold system, air cooled system two kinds. According to the technical economy comparison result, the table congeals the type indirect air cooled system year operating cost grand total is smaller than the direct air cooled system. The table congeals the type indirect air cooled system total investment expense grand total to be bigger than the direct air cooled system. In the coal price is 225 yuan/t, two kind of air cooled system year all-in cost basic equal. The list says from the economical angle, the coal price is 225 yuan/t is a two kind of air cooled system selection threshold. When the coal price is bigger than 225 yuan/t, uses the indirect air cooled system to be more appropriate. When the coal price is smaller than 225 yuan/t, uses the direct air cooled system to be more appropriate. Simultaneously is indirect the air cooled systematic and the direct air cooled system with many factors related, when selection, both must consider that the owner likes and so on subjective factor, and must consider the external condition,