ZHANG Cuihong. CAUSE ANALYSIS OF CORROSION FOR CHEMICAL-DOSING TUBE ENTERING INTO THE DRUM PORT[J]. Thermal power generation, 2005, (1): 48-49. DOI: 10.19666/j.rlfd.2005.01.016.
锅炉进汽包口炉内加药管腐蚀原因分析
摘要
胜利发电厂 2 2 0MW汽轮发电机组锅炉进汽包口炉内加药 (磷酸三钠 )管腐蚀严重
管壁减薄1.2mm
主要因磷酸三钠溶液浓度偏高和加药管内有残存气体引起。对此
采取了相应的处理措施
Abstract
The innerboiler chemical (Na_3PO_4)dosing tube entering into the drum port has been seriously corroded
the thickness of tube wall decreased 1.2mm
the main causes leading to corrosion are as follows:(1) the concentration of Na_3PO_4 solution is somewhat higher; (2)residual gas exists in the dosing tube. Directing against these