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2017-05-14View Original

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Reply #22017-05-14
["["过热蒸汽怎么理解
Reply #32017-05-14
"什么叫"
Reply #42017-05-14
饱和蒸汽在不同的压力下有不同的温度,当温度达到饱和蒸汽时再通过加热使蒸汽温度上升这就形成了过热蒸汽。在饱和压力相同情况下,过热蒸汽的密度要小一点。
Reply #52017-05-14
在饱和状态下的液体称为饱和液体,其对应的蒸汽是饱和蒸汽,但最初只是湿饱和蒸汽,待饱和水中的水分完全蒸发后才是干饱和蒸汽。蒸汽从不饱和到湿饱和干饱和的过程温度是不增加的(湿饱和到干饱和温度保持不变),干饱和之后继续加热则温度会上升,成为过热蒸气。
Reply #62017-05-15
简单理解就是比饱和蒸汽温度高,不管高多少都特么叫过热蒸汽!
Reply #72017-05-15
当液相全部变为气相后,再加热,就得到过热蒸汽,但是我觉得过热蒸汽的压力应该比最后的饱和蒸气压高一点吧。
Reply #82017-05-21
但是过热蒸汽相对危害大些
Reply #92017-05-31
个人认为哈:只要是蒸汽温度比标准表查到压力下的饱和蒸汽温度高的,不管高多少,都叫过热蒸汽。
Reply #102017-06-08
感觉除了节流无法制备过热蒸汽

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