原油加熱炉チューブの腐食傾向と最小肉厚推定計算
1958 年 7 巻 6 号 p. 347-350
詳細
1958 年 7 巻 6 号 p. 347-350
The inside diameter of furnace tubes are measured by through gauge in order to know the wall thickness, but it is difficult to know the minimum wall thickness due to irregular corrosion.
Therefore, the author studied the corrosion tendency and tried to calculate minimum thickness.
The results obtained were as follows:
(1) Eccentric corrosion due to bubbling are found on the heating side of radiation tubes.
(2) The minimum wall thickness of tubes are calculated by following relation:
Tm=To-[{Δd×(12.3√Δd+50)}/100]
Tm: minimum thickness
To: original thickness
Δd: increase of inside diameter
