摘要
比较计算燃煤电厂烟气的抬升高度和落地空气质量浓度,讨论通过常规的烟囱排放或通过冷却塔排放哪种方式更有利于空气环境质量的改善。计算方法采用德国标准规范的烟团抬升模式和污染物扩散模式。比较方案选择了冷却塔和烟囱各3种设计方案。计算结果表明,使用149.6m高的冷却塔排放烟气,其抬升高度明显高于其他方案,其一次性落地空气质量浓度明显小于其他方案;使用120m高的冷却塔和240m烟囱排放烟气,其抬升高度和一次性落地空气质量浓度结果相当;210m烟囱不加GGH方案的情况为最差。
The uplifted height and subsided consistency of coal-fired power plant were compared and calculated. The ways to exhaust the flue gas, including the stack emission and cooling tower emission, are discussed from the point of air quality improvement. Calculation for puff model and pollution dispersion model was in accordance with Germany standards. Six comparison projects have been selected, three of which are stack emission and others are cooling tower emission. The calculation results show that the uplifted height is distinctively higher than others while the subsided consistency is the least in case of the 149.6-m cooling tower for flue gas exhausting. The calculation results of 120-meter-high cooling tower and the stack of 240 meters are almost the same. Result of the 210-m-stack without GGH is the worst.
出处
《中国电力》
CSCD
北大核心
2006年第10期73-76,共4页
Electric Power
关键词
燃煤电厂
排烟方式
烟塔合一
抬升高度
落地空气质量浓度
coal-fired power plant
flue gas exhausting method
cooling tower with flue gas injection
uplifted height
subsided consistency
