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["증기 �泵不量的原因是什么?",,"증기 앵글泵与汽轮机的排气装置相连,排汽装置内负压约为-0.07MPa左右,水温大约在77度左右,然后经常在泵切换或正常运行时泵就不上量了,出口压力低,凝结水外送不出去,是不是水在这种条件下汽化了导致泵汽缚,所以不上量,请各位大神帮忙分析一下到底是什么原因造成的谢谢","본 토론은 28Z6 8:47에 38356_FPPZ가 편집했습니다 一定是的查了下78摄氏度水饱和蒸汽压为:3KPa=-...31MPa(绝对压力)而实际是-8...7MPa汽化是必须的都是水蒸气泵肯定不好使","总的来说进泵压力很低(负压为K8.7MPa左右)。","적외선으로 침식되었어요. 没有其他的原因")

2018-11-26View Original

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有这么个疑问,凝结水泵与汽轮机的排气装置相连,排汽装置内负压为-0.07MPa左右,水温大概在70度左右,然后经常在泵切换或者正常运行时泵就不上量了,出口压力低,凝结水外送不出去,是不是水在这种条件下汽化了,导致泵汽缚,所以不上量,请各位大神帮忙分析一下,看到底是什么原因造成的,谢谢
Reply #22018-11-26
本帖最后由 3983596_FPPZ 于 2018-11-26 20:47 编辑 一定是的,查了下,70摄氏度水饱和蒸汽压为:31KPa=0.031MPa(绝对压力),而实际是-0.07MPa,汽化是必须的,都是水蒸气,泵肯定不好使
Reply #32018-11-26
总的来说进泵压力过低(负压为-0.07MPa左右)。
Reply #42018-11-27
气蚀了,没有别的原因:)

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