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2018-07-17View Original

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PSHa는 시스템의 압력면
Reply #22018-07-17
PSHaa와 N
Reply #32018-07-18
NPSHr은 泵在运行的时候要抽N工作介质必须满足满足N。正常情况下N可以通过增加增加诱导轮或是入口加压压来进行改善。N汽蚀指的是N蚀余量不足而出现的现象,出现N蚀后将会导致N出现损坏严重可能导致泵烧毁。
Reply #42018-07-18
N气蚀就是在叶轮入口处(此处最最易易化汽化N产生气泡N破裂。微观N对叶对的叶轮的冲击力很大容易造成叶轮损坏;另外N产产生气泡体会导致N输送输送液体不能连续吸上使使叶N气气液一起输送N会会异常振动甚至损坏设备。
Reply #52018-12-04
N0.6미터是某些公式里面的安全量例如这个。🔺NPSHa-0N0.33N-PSPSH-安
Reply #62018-12-04
谢谢您的详细解答····
Reply #72018-12-04
N虽然不太懂但确实解答的很详细
Reply #82019-01-11
N과 같은 증기압을 초과하면 증기된 기체가 액체로 다시 변하여 기포이 형성되며, 이 기체가 액체로 이동하면 압압이 증가하면 기포이가 깨파되며 주변의 액체가 기포을 채우면서 거대한 충격을 일 악발하여 이를 증기蚀叫做汽化产生气泡气当气泡足够多多N破裂并产生巨大的能量N导致流道部件特别是叶叶轮损坏N泵表现为振动噪声异常响声N汽蚀余量就是为了防止输送介质在进入泵体时时时破裂N产生的能量N装置汽蚀余量NPSHaa和泵的必须汽蚀余量NPSHrN如果PSHa至少要比NPSHr大N6PSHaNPSHaa
Reply #92019-01-13
N气体形成的很小的的离心力力不能让液体连续不断的吸入泵内内所以就没法用了
Reply #102019-09-04
N汽蚀是一种现象汽蚀余量是一个数值
Reply #112019-09-07
N饱和PSHaN和PSHr两种其中NPSHa指的是系统的液面高度NPSHr指的是泵在运行的时候要抽N工作介质必须满足满足N。正常情况下可以通过N增加增加诱导轮或是入口加压压压来进行改善N汽蚀指的是N蚀余量不足N出现的现象N出现N后将会导致N出现损坏严重可能导致泵烧毁
Reply #122022-03-01
N气蚀就是在N入口处此处N易汽化N产生气泡N破裂微观N对N对对N冲击力很大容易N叶损坏;另外N产生气体会导致N输送输送液体不能连续吸N使N叶气液一起输送N会会异常振动甚至损坏设备
Reply #132022-04-04
N0.6미는 일부 공식안 안전量的安全量例如这个N

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