超临界机组空冷风机运行优化试验研究
Experimental study on operation optimization of air-cooled fans in supercritical units
陈树宽 1杜秦洲 1王瑶 1高飞 1周戈 1周强 1薛康康2
作者信息
- 1. 大唐陕西发电有限公司延安热电厂,陕西 延安 716000
- 2. 中国大唐集团科学技术研究院有限公司西北电力试验研究院,陕西 西安 710065
- 折叠
摘要
文中通过对空冷风机的运行进行优化,确定空冷机组在不同环境温度和负荷下的最佳风机运行频率,提高机组运行的经济性.结果表明,机组50%THA(理论热可用率)工况时,在5～15℃温度参数变化范围内,增加空冷风机频率,使机组背压接近阻塞背压;在5～30℃温度参数变化范围内,空冷风机频率应运行在39 Hz左右.机组75%THA工况时,在5～15℃温度参数变化范围内,增加空冷风机频率,使机组背压接近阻塞背压;在15～25℃温度参数变化范围内,空冷风机频率应运行在39 Hz左右;在超过30℃温度参数变化范围内,空冷风机应超频运行.机组100%THA工况时,在5～30℃温度参数变化范围内,空冷风机均应超频运行.
Abstract
Optimizing the operation of air-cooled fans to determine the optimal fan operating frequency for air-cooled units under different environmental temperatures and loads,thereby improving the economic operation of the unit.The results show that at 50%THA condition of the unit,within the temperature parameter range of 5～15 ℃,increasing the frequency of the air-cooled fans causes the unit back pressure to approach the blocking back pressure;within the temperature parameter range of 5～30 ℃,the air-cooled fan frequency should operate around 39 Hz.At 75%THA condition,within the temperature parameter range of 5～15 ℃,increasing the frequency of the air-cooled fans causes the unit back pressure to approach the blocking back pressure;within the temperature parameter range of 15～25 ℃,the air-cooled fan frequency should operate around 39 Hz;when the temperature parameter exceeds 30 ℃,the air-cooled fans should operate at an overclocked frequency.At 100%THA condition of the unit,within the temperature parameter range of 5～30 ℃,the air-cooled fans should all operate at an overclocked frequency.
关键词
直接空冷/运行优化/最佳真空/最佳风机频率Key words
direct air cooling/operation optimization/optimal vacuum/optimal fan frequency引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据