OALib Journal期刊
ISSN: 2333-9721
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超超临界1000mw机组rb过程除氧器暂态特性研究
, PP. 61-65
Keywords: 超超临界,1000mw机组,rb过程,除氧器,暂态特性
Abstract:
研究超超临界1000mw机组rb过程中除氧器系统的暂态试验特性,分析除氧器系统凝结水温度、质量、除氧器温度及压力以及给水泵组的参数变化。结果表明:rb过程中,给水泵组的有效汽蚀余量大幅下降,前置泵有可能发生汽蚀,建议布置除氧器时以rb工况为标准核算前置泵有效汽蚀余量下降值,防止汽蚀现象发生;计算前置泵有效汽蚀余量下降值时,将除氧器水焓值设为水箱中间位置处压力所对应的饱和水焓值。
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