摘要
对某1 000 MW直接空冷机组汽动给水泵冷凝用蒸发式凝汽器进行了方案设计和变工况特性分析.蒸发式凝汽器采用空气与冷却水逆流布置,2×50%配置方案.变工况特性分析表明:排汽冷凝温度主要受空气入口湿球温度、风速以及喷水量的影响,随入口湿球温度升高而升高,随喷水量的增加以及风速的减小而降低.空气流速增大时,管外冷却水的蒸发量也随之增加.
Schematic design was performed to evaporative condenser for steam condensing of steam-driven feed-water pump in a 1 000 MW direct air-cooling unit,while its operational characteristics analyzed under variable working conditions.The condenser uses 2×50% configuration with air and cooling water flowing countercurrently.Results show that the condensing temperature of exhaust steam is mainly affected by the inlet wet-bulb temperature,wind speed and the amount of water spray,which rises with growing inlet wet-bulb temperature,drops with both rising amount of water spray and reducing wind speed.When the wind speed increases,the evaporation capacity of outer cooling water also increases.
出处
《动力工程学报》
CAS
CSCD
北大核心
2011年第4期290-293,共4页
Journal of Chinese Society of Power Engineering
关键词
直接空冷机组
蒸发式凝汽器
汽动给水泵
变工况运行
direct air-cooling unit
evaporative condenser
steam-driven feed-water pump
variable working condition
作者简介
洪文鹏（1970-），男，辽宁绥中人，教授，博士，主要从事多相流理论及工业节能方面的研究．
任静秋（联系人），女，硕士研究生，电话（Tel．）：15210710965；E-mail：zhmabc-1@163．com．
