冶金动力
冶金動力
야금동력
Metallurgical Power
2015年
11期
31-34
,共4页
高炉煤气%增压风机%高低速切换%压力稳定%减少BFG放散
高爐煤氣%增壓風機%高低速切換%壓力穩定%減少BFG放散
고로매기%증압풍궤%고저속절환%압력은정%감소BFG방산
BFG%booster%high-low speed switching%stable pressure%reduction of BFG re-lief
宝钢电厂4号机组配备3台BFG增压风机,与之配套的电动机为双速电动机,可以根据BFG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1个工况点下可以进行,因此,当需要增加BFG消耗量而将低速运行的风机切换高速运行时存在BFG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.
寶鋼電廠4號機組配備3檯BFG增壓風機,與之配套的電動機為雙速電動機,可以根據BFG用量的不同進行高、低速切換運行.在實際的切換運行中,對進口調節擋闆的開度範圍要求十分嚴格,僅在1箇工況點下可以進行,因此,噹需要增加BFG消耗量而將低速運行的風機切換高速運行時存在BFG的放散.通過試驗數據和理論分析對切換方式進行優化,找到多種切換方案併達到保證壓力的穩定、減少BFG放散,實現節能的目的.
보강전엄4호궤조배비3태BFG증압풍궤,여지배투적전동궤위쌍속전동궤,가이근거BFG용량적불동진행고、저속절환운행.재실제적절환운행중,대진구조절당판적개도범위요구십분엄격,부재1개공황점하가이진행,인차,당수요증가BFG소모량이장저속운행적풍궤절환고속운행시존재BFG적방산.통과시험수거화이론분석대절환방식진행우화,조도다충절환방안병체도보증압력적은정、감소BFG방산,실현절능적목적.
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.
