consilience1
Petroleum
- Jul 31, 2006
- 16
Dear all
Our plant suffer from the leakage on convection tube in heater. The convection tube is for making saturated steam, and recently chemicals for BFW was changed. So we suspected failure of water chemistry, and try to repair the leaked tube with plugging way because there is no spared tubes.
By the way, we concern about the situation after plugging some convection tubes which are leaked. Definitely the number of tubes are decreased, and it will impacts the amount of steam generated and its qualities. Also, according to decreasing heat absorption to convection tubes, flue gas temperature will be higher.
For that case, is there any some tools for calculation or estimation, for example, if 50% of tubes is plugged, how much steam flow rate is decreased? or how much temperature is increased on tube skin?
Thank you
Our plant suffer from the leakage on convection tube in heater. The convection tube is for making saturated steam, and recently chemicals for BFW was changed. So we suspected failure of water chemistry, and try to repair the leaked tube with plugging way because there is no spared tubes.
By the way, we concern about the situation after plugging some convection tubes which are leaked. Definitely the number of tubes are decreased, and it will impacts the amount of steam generated and its qualities. Also, according to decreasing heat absorption to convection tubes, flue gas temperature will be higher.
For that case, is there any some tools for calculation or estimation, for example, if 50% of tubes is plugged, how much steam flow rate is decreased? or how much temperature is increased on tube skin?
Thank you
