| 200MW直接空冷机组变工况特性研究 |
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| 引用本文： | 周兰欣,杨靖,杨祥良. 200MW直接空冷机组变工况特性研究[J]. 汽轮机技术, 2007, 49(2): 118-120,124 |
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| 作者姓名： | 周兰欣 杨靖 杨祥良 |
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| 作者单位： | 华北电力大学电站设备状态检测与控制教育部重点实验室,保定,071003;菏泽发电厂,菏泽,274000 |
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| 摘 要： | 以200MW直接空冷机组为例,考虑排汽管道的压损,排汽口和凝汽器入口间水蒸汽柱高度压差及排汽管道对环境散热量,建立直接空冷机组冷端系统变工况数学模型,编程计算做出直接空冷机组冷端系统特性曲线,同时分析了凝汽器入口压力及管道压损的变工况特性,对于空冷机组的运行具有一定的指导价值。
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| 关 键 词： | 直接空冷 凝汽器压力 变工况 特性曲线 |
| 文章编号： | 1001-5884（2007）02-0118-03 |
| 修稿时间： | 2006-04-25 |
Study on 200MW Direct Air-Cooling Unit for Variable Working Condition |
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| ZHOU Lan-xin,YANG Jing,YANG Xiang-liang. Study on 200MW Direct Air-Cooling Unit for Variable Working Condition[J]. Turbine Technology, 2007, 49(2): 118-120,124 |
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| Authors: | ZHOU Lan-xin YANG Jing YANG Xiang-liang |
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| Affiliation: | 1 Key Laboratory of Ministry of Education of Condition Monitoring and Control for Power Plant Equipment, North China Electric Power Univ, Baoding 071003, China ;2 Power Plant of Heze, Heze 274000, China |
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| Abstract: | One 200MW direct air-cooling unit was taken as an example,based on consideration of the pressure lose of exhaust manifold,the pressure difference caused by steam slug between steam exhaust port and entrance to condenser,and the heat dissipating capacity of exhaust manifold,an mathematical model was formed,the characteristic curve which was about cold end system of the unit was drawn.The characteristic curve of condenser pressure and pressure lose of exhaust manifold in varied condition was analyzed moreover.This has great value in guiding economy operation of direct air-cooling units. |
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| Keywords: | direct air-cooling exhaust pressure variable working condition characteristic curve |
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