汽动引风机汽轮机汽源选择的热经济性分析Thermal Economy Analysis on Steam Sources Selection for Turbine-Driven Induced Draft Fan
朱国栋,李朋,王超,俞亚勇,张敬坤,高燕武
ZHU Guodong,LI Peng,WANG Chao,YU Yayong,ZHANG Jingkun,GAO Yanwu
摘要(Abstract)：
为满足"提质增效"要求,降低企业生产成本,针对汽动引风机汽轮机不同负荷工况下,所采用的供汽汽源不同的情况,进行经济性分析。分析后发现当负荷在560 MW以下,采用经二段抽汽减压后的辅助蒸汽作为汽源,造成平均0.61 g/k Wh的标煤损失;当负荷大于560 MW时,对比不同汽源供汽,采用二段抽汽较采用四段抽汽,平均煤耗增加0.7 g/k Wh。因此建议尽量不采用二段抽汽作为供汽汽源,以减少经济损失。
In order to meet the requirements of Quality Improvement and Efficiency Increase and reduce the production cost of enterprises, economy analysis of different steam sources under different load conditions of steam induced draft fan is carried out in this paper. It is found that when the load is lower than 560 MW, the decompressed auxiliary steam of two-stage extraction is used as the steam source, resulting in an average coal loss of 0.61 g/k Wh; when the load is higher than 560 MW, we compare the average coal consumption with the different steam sources between the two-stage extraction steam and four-stage extraction steam. If we adopt the two-stage extraction steam as the steam sources, the average coal consumption increases by 0.7 g/k Wh.Therefore, it is suggested not adopting the two-stage extraction steam to reduce economic loss.
关键词(KeyWords)：
汽动引风机;汽源;技术功;经济性
turbine-driven induced draft fan;steam source;technical power;economy
基金项目(Foundation):
作者(Author):
朱国栋,李朋,王超,俞亚勇,张敬坤,高燕武
ZHU Guodong,LI Peng,WANG Chao,YU Yayong,ZHANG Jingkun,GAO Yanwu
DOI: 10.19585/j.zjdl.201711016
参考文献(References)：
- [1]樊印龙,李飞雁.给水泵汽轮机汽源配置浅析[J].浙江电力,2005,24(1):29-31.
- [2]孙叶柱,孙伟鹏,江永.1 036 MW机组汽动引风机控制策略优化及其深度节能研究[J].中国电机工程学报,2011,31(S1):217-221.
- [3]李代智,周克毅,徐啸虎,等.600 MW火电机组抽汽供热的热经济性分析[J].汽轮机技术,2008,50(4):282-284.
- [4]王光艳,马岩,胡磊,等.660 MW机组给水泵小汽轮机汽源配置问题分析及处理措施[J].黑龙江电力,2016(6):546-548.
- [5]陈仲渊,樊印龙,张宝,等.汽动给水泵汽源切换方式的改进与实践[J].浙江电力,2010,29(11):39-42.
- [6]应明良,冉志超.1 000 MW机组锅炉汽动引风机运行试验分析[J].浙江电力,2015,34(7):46-48.
- [7]李芳芽.锅炉给水泵不同驱动方式的经济性比较与方法研究[D].北京:华北电力大学,2008.
- [8]刘武.600 MW机组引风机改造后可靠性及经济性分析[J].浙江电力,2012,31(11):45-47.
- [9]曾丹苓,敖越,张新铭,等.工程热力学[M].北京:高等教育出版社,2002.
- [10]宫克勤,施微,卢丽冰,等.节流过程热力学特性及工程计算[J].应用能源技术,2014(7):35-39.
- [11]王兴国,任连海,魏宝权,等.火电厂节流现象及节流技术功计算分析[J].河北电力技术,2010,29(5):22-23.
- [12]严家禄,俞晓福.水和水蒸气热力性质图表[M].北京:高等教育出版社,1995.
- [13]钱能,金生祥,王琪,等.凝结水节流控制与经济效益分析[J].中国电力,2014,47(3):69-73.
- [14]范永春,吴阿峰.引风机驱动方式选择的经济性评价方法[J].电力建设,2010,31(1):91-94.