石油化工腐蚀与防护
石油化工腐蝕與防護
석유화공부식여방호
PETROCHEMICAL CORROSION AND PROTECTION
2011年
2期
49-51
,共3页
粱成浩%由成鑫%隋桂海%黄乃宝
粱成浩%由成鑫%隋桂海%黃迺寶
량성호%유성흠%수계해%황내보
废汽油罐%浮盘盖板%浮筒%硫化物%孔蚀%防护措施
廢汽油罐%浮盤蓋闆%浮筒%硫化物%孔蝕%防護措施
폐기유관%부반개판%부통%류화물%공식%방호조시
waste gasoline tank%floating cover%buoy%sulfide%pitting corrosion%prevention measures
对某石化公司642号废汽油储罐0Crl8Ni9不锈钢浮盘盖板和浮筒腐蚀情况进行了物理测试。分析了腐蚀的原因。结果表明．不锈钢浮盘盖板和浮筒是由于废汽油中有硫化物而导致局部腐蚀穿孔。腐蚀穿孔是由浮盘盖板下表面萌生，并向接触其相部位的上表面发展。同时，由于海水冲洗和稀释引起氯化物对不锈铜浮盘盖板和浮筒的局部腐蚀。在分析的基础上提出了切实可行的防护措施。
對某石化公司642號廢汽油儲罐0Crl8Ni9不鏽鋼浮盤蓋闆和浮筒腐蝕情況進行瞭物理測試。分析瞭腐蝕的原因。結果錶明．不鏽鋼浮盤蓋闆和浮筒是由于廢汽油中有硫化物而導緻跼部腐蝕穿孔。腐蝕穿孔是由浮盤蓋闆下錶麵萌生，併嚮接觸其相部位的上錶麵髮展。同時，由于海水遲洗和稀釋引起氯化物對不鏽銅浮盤蓋闆和浮筒的跼部腐蝕。在分析的基礎上提齣瞭切實可行的防護措施。
대모석화공사642호폐기유저관0Crl8Ni9불수강부반개판화부통부식정황진행료물리측시。분석료부식적원인。결과표명．불수강부반개판화부통시유우폐기유중유류화물이도치국부부식천공。부식천공시유부반개판하표면맹생，병향접촉기상부위적상표면발전。동시，유우해수충세화희석인기록화물대불수동부반개판화부통적국부부식。재분석적기출상제출료절실가행적방호조시。
The physical tests were performed to analyze the corrosion and corrosion causes of 0Crl8Ni9Ti stainless steel floating cover and buoy of 642# waste gasoline tank. The results indicated that it was the sulfide in waste gasoline that caused the corrosion and corrosion failure of floating cover and buoy. The corrosion failure was burgeoning on the bottom surface of floating cover and then developed to the upper surface. At the same time, the local corrosion was accelerated due to chlorides from sea water rinsing and dilution. Practical protection measures have been proposed based upon the analysis.
