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2015 11 冶 金 动 力 年第 总第 期 期 189 METALLURGICAL POWER 31 热电 350MW发电机组高炉煤气 增压风机切换方式优化研究 1 2 1 胡捷,娄婧鑫,廖立 (1.宝山钢铁股份有限公司,上海 201900,2.上海交通大学,上海 200240) BFG BFG 1 【摘 要】宝钢电厂 4号机组配备 3 台 增压风机,与之配套的电动机为双速电动机,可以根据 用 量的不同进行高、低速切换运行。在实际的切换运行中,对进口调节挡板的开度范围要求十分严格,仅在 个工 BFG BFG 况点下可以进行,因此,当需要增加 消耗量而将低速运行的风机切换高速运行时存在 的放散。通过 试验数据和理论分析对切换方式进行优化,找到多种切换方案并达到保证压力的稳定、减少 BFG放散,实现节 能的目的。 BFG 【关键词】高炉煤气;增压风机;高低速切换;压力稳定;减少 【中图分类号】TM31 【文献标识码】B 放散 1006-6764(2015)11-0031-04 【文章编号】 Optimization of Speed Switching of BFG Booster for 350MW Power Unit Hu Jie , Lou Jingxin2, Liao Li 1 1 (1. Baoshan Iron & Steel Co., Ltd., Shanghai 201900; 2. Shanghai Jiaotong University, Shanghai 200400, China ) [Abstract] The unit 4 of Baosteel Power Plant is equipped with 3 BFG booster fans with the ancillary motor using a two-speed motor, which can switch between high and low speed according to BFG amount. In actual switching operation, the range of entrance apron was strictly required with only one operating point. Therefore, BFG would be diffused when the booster fan was switched from low speed to high speed to increase BFG consumption. Through experiment and theoretical analysis the switching mode was optimized and a variety of switching programs was designed to maintain pressure stability, reduce BFG relief and save energy. [Keywords] BFG;booster;high-low speed switching;stable pressure;reduction of BFG re原 lief BBF 1引言 运行要求时,就需要将 切换至高速运行。同样 BFG BBF 4 350 MW 燃气 的,随着 用量的不断减少,高速运行的 进 宝钢电厂 号机组为世界首