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2019-06-17View Original

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Reply #22019-06-17

汽蚀이 발생하면,,

Reply #32019-06-18

Reply #42019-06-18

그러나 만약 액체가 증기로 변환되는 경우,气缚和汽蚀是否会同时发生？欢迎大家讨论

Reply #52019-06-18

汽蚀和气缚的发生机理来看，气缚是由于泵内存有气体，启动泵后吸不上液的现象。如果泵及吸入管路系统密封不良或吸入管安装位置不当，致使泵内存入较多空气，由于空气密度很小，不能抛到叶轮外缘，就会堵住叶轮部分或全部流道，使排液中断。汽蚀是由于泵的吸上高度过高，使泵内存压力等于或低于输送液体温度下的饱和蒸汽压时，液体汽化，气泡形成、破裂等过程中引起的剥蚀现象，称为“汽蚀”现象。从现象发生来看：“气缚”现象发生后，泵无液体排出且没有噪音和振动。而汽蚀发生时液体因冲击而产生噪音、振动、会使流量减少甚至无液体排出

Reply #62019-09-16

汽蚀严重的后期应是气缚状态了

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