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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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超超临界1000mw机组锅炉水冷壁管超温控制策略
, PP. 99-103
Keywords: 超超临界,1000mw机组,锅炉,水冷壁管,超温,给水流量,温度,控制
Abstract:
基于对某超超临界1000mw机组锅炉水冷壁超温特性的分析,提出一种通过改变给水流量和调整减温水与给水流量比值的锅炉水冷壁温度控制策略,并在各种易发生锅炉水冷壁超温的工况下进行了机组升、降负荷试验。结果表明,该控制策略通过预判断水冷壁超温趋势超前调整锅炉给水流量,从而很好地抑制了超温,且对机组负荷、主蒸汽压力等参数的影响不大。
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