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风扇磨煤机直吹式燃烧锅炉RB控制的改进

Thermal Power Generation(2008)

Cited 23|Views2
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Abstract
在分析了华能伊敏电厂二期2×600 MW机组原辅机故障减负荷(RB)控制设计的基础上,针对风扇磨煤机卷吸用于干燥的高温炉烟温度过高,调节磨煤机出口温度的冷风调节能力有限,导致磨煤机出口温度高保护动作等问题进行了RB控制改进。调整了RB的目标负荷,将煤量降到与35%负荷相对应的量,优化了RB时停运磨煤机的控制逻辑。试验表明,改进后的RB控制满足机组快速、稳定减负荷的要求。
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control,outlet temperature of the coal pulverizer,subcritical,600 MW unit,blower coal pulverizer
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