Regarding the oxygen content in boiler feedwater
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I’ve encountered a problem recently: the deaerator installed in the catalytic unit operates at a normal pressure of 0.1 MPa, and the oxygen content in the water coming out of the deaerator is within acceptable limits. However, after the water is pressurized to 6.0 MPa by the boiler feed pump, samples taken 700 meters downstream from the pump show that the oxygen content in the water is significantly above the allowable level. What could be the possible causes? Thank you to all the experts.
Did the pump leak air and draw in water? Or are there issues with sampling and testing? For such problems, it is necessary to identify the possible causes and rule them out
This post was last edited by I Love Popcorn on 2017-12-27 at 15:34. If the testing and sampling are normal, what could be the reason? Could it be that the pressure has increased and there is more dissolved oxygen? The temperature drop should not be significant. It can’t be that air is being drawn in due to a pump leak, right?