冷凝水除铁器氧气来源
Oxygen source of condensate iron remover
冷凝水中O2的来源有二个，一是蒸汽中含有一定量的O2，即锅炉给水除氧设备运行效果不理想，或运行管理不善会含有一定的O2，含有O2的给水进入锅炉后，O2会随着水的蒸发进入水蒸汽中。冷凝水中O2的另一个来源是在其输送过程中溶入空气中的氧气。确切地说，工厂生产中的冷凝水回收系统大部分为开式系统，冷凝水箱有一呼吸孔直通大气；当水箱液位上升时，水箱内的气体排入大气，当水箱液位下降时，水箱外的的气体进入水箱内，由于水箱内的气体中O2的浓度与水箱外空气中O2的浓度存在较大的浓度差，随着冷凝水箱的呼吸，大气中氧气不断进入冷凝水箱。
There are two sources of O2 in the condensate: one is that there is a certain amount of O2 in the steam, that is, the operation effect of the boiler feed water deaeration equipment is not ideal, or the operation management is not good, there will be a certain amount of O2. After the feed water containing O2 enters the boiler, the O2 will enter the water steam with the evaporation of water. Another source of O2 in condensate is the oxygen dissolved in the air during its transportation. Specifically, most of the condensate recovery systems in the production of the plant are open systems, and the condensate tank has a breathing hole through to the atmosphere; when the water tank level rises, the gas in the water tank is discharged into the atmosphere; when the water tank level falls, the gas outside the water tank enters the water tank, because there is a large concentration difference between the O2 concentration in the gas in the water tank and the O2 concentration in the air outside the water tank With the breathing of the condensate tank, oxygen in the atmosphere continuously enters the condensate tank.