600MW机组超低负荷调峰中三大风机运行稳定性分析  

Analysis on Operation Stability of PA,FD and ID Fan during Peak-shaving Ultra-low Load Operation of a 600MW Unit

作　　者：陈晓文[1] 赵兴春[2] 黄成 郑冠捷[2] 刘立成[2] 王锋[2] Chen Xiaowen;Zhao Xingchun;Huang Cheng;Zheng Guanjie;Liu Lichen;Wang Feng(Huanghe Hydropower Development Co., Ltd., Xining 810000, China;Northwest Electric Power Design Institute Co., Ltd., Xi＇an 7100750, China;Jurong Power Plant, Jiangsu Huadian Energy Co., Ltd., Zhenjiang 212400, Jiangsu Province, China)

机构地区：[1]黄河上游水电开发有限责任公司,西宁810000 [2]西北电力设计院,西安710075 [3]华电江苏能源有限公司句容发电厂,江苏镇江212400

出　　处：《发电设备》2017年第6期456-460,共5页Power Equipment

摘　　要：为了满足机组超低负荷调峰的新要求,以某600 MW机组为基础,对三大风机在15%THA和20%THA负荷下的稳定性进行分析。结果表明:送风机和引风机在各种运行组合条件下,均在稳定区域;当运行2台磨煤机时,一次风机可以稳定运行;当仅投运单台磨煤机时,一次风机运行在失速点附近,存在不稳定性。To satisfy the new requirement of ultra-low load operation during peak-shaving period of a 600 MW unit, an analysis was conducted on the operation stability of its PA, FD and ID fan respectively at 15% THA and 20% THA load. Results show that both the FD and ID fan run in the stable range under different conditions. The PA fan runs stably when two coal mills are put into operation. However, the PA fan works near the stall point when only a single mill is operated, indicating that there exists potential risk of unstable operation of the PA fan.

关 键 词：火电厂 超低负荷 风机 调峰 

分 类 号：TK223.26[动力工程及工程热物理—动力机械及工程]