Thermal deaerator
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I’m a bit confused about this thermal deaerator. Does the deaerator simply use steam to heat the water until the pressure reaches 0.2 bar and the temperature reaches 104 degrees? Or does it first bring the pressure to 0.2 bar, and then heat the water to 104 degrees at that pressure? Could someone please explain this? Thank you
The working principle of a thermal deaerator is to use heating to reduce the amount of dissolved oxygen in water, as the solubility of oxygen decreases as temperature rises. Specifically, as for the process you mentioned, it usually goes like this: 1. First, heat the water to raise its temperature. During the heating process, oxygen in the water begins to be released. 2. Then adjust the system pressure to 0.2 bar. At this lower pressure, a water temperature of 104 degrees can help drive more oxygen out of the water, as the lower pressure facilitates the release of more gases. In summary, deaerators typically first raise the water temperature by heating it, and then maintain that high temperature at a lower pressure to enhance the deaeration effect. It is not simply to first raise the pressure to 0.2 bar and then heat it to 104 degrees; rather, the pressure needs to be adjusted while heating or after heating in order to ensure effective oxygen removal. .