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2017-11-03View Original

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Reply #22017-11-03
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Reply #32017-11-03
今天听了一个理念,温度高了后除盐水的氧出来就腐蚀管线了!! 是这个道理不
Reply #42017-11-04
除氧器进水温度太低或太高均对操作及除氧效果有影响,大部分除氧器在将除氧水提温40~70℃时合适,这个温升范围除氧器运行操作简单、经济实惠。
Reply #52017-11-04
进入除氧器的水温没什么要求的,加热后除去水中的溶解氧,怎么会腐蚀管线?;P
Reply #62017-11-04
从水中析出的溶氧及其他气体则不断地从除氧器顶部的排汽管随余汽携带排出器外。除氧需满足一定饱和压力温度下。
Reply #72017-11-04
1. 锅炉给水进行脱氧操作的目的就是防止锅炉的氧腐蚀。在水温度大于95℃时,水中的溶解氧会腐蚀很严重。 2. 热力除氧是将锅炉给水加热至沸点,使氧的溶解度减小,水中氧不断逸出,这样能除掉水中各种气体(包括游离志CO2,N2)。因此进水温度越高,除氧器用汽量就低,能耗越低。但进水温度高必须考虑入口管线的腐蚀问题。
Reply #82017-11-04
是这个道理,但不是氧出来,而是温度高了水中的溶解氧腐蚀加剧。
Reply #92017-11-04
将除氧水提温40~70℃时合适?
Reply #102017-11-04
除去氧,不腐蚀管线;但若除不去,可就腐蚀了。
Reply #112017-11-06
是的,除氧器出水温度减40~70
Reply #122017-11-08
同意大家观点,不能低也不能太高,温度太高氧就会游离出来,会腐蚀管线
Reply #132017-11-09
如果进入除氧器的温度过低,你们除氧器的温度可以保证吗
Reply #142017-11-09
25度以上可以提到104度,再低了不合适,除氧器排汽量太大且不好操作,通常低于40度的进水加一前置生水加热器,

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