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为什么真空除氧器要给水除氧?

发布时间： 2015-01-31 浏览数：

必要性：真空除氧器给水中溶有气体的危害：腐蚀金属设备、降低其使用寿命；增大传热热阻，降低传热效果。

给水除氧的任务主要包括：除去水中的不凝结气体，防止设备腐蚀和传热恶化。

具体方法：热力除氧和化学除氧。

除氧器给水中溶解氧的主要来源：化学补充水带进；处于真空下工作的凝汽器、部分低压加热器等热力设备及管道附件不严密，漏进空气。

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