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
3期
28-30
,共3页
炼化装置%停工保护%腐蚀
煉化裝置%停工保護%腐蝕
련화장치%정공보호%부식
refinery and chemical units%shutdown protection%corrosion
由于生产调整或特殊原因导致的炼油化工装置闲置或处于停工状态期间,设备所处的环境条件与操作运行期间完全不同,往往比操作运行中更容易出现劣化现象。同时,很多企业目前仍缺乏此方面的经验,需要有合适的保护方案来预防停工期间的设备腐蚀问题。通过对炼化装置闲置停工设备在停工期间存在的腐蚀环境分析,对可能发生的3种腐蚀的腐蚀机理进行了探讨,并给出了停工设备的腐蚀影响因素;介绍了5种常用的闲置停工设备的保护方法及其应用情况,同时对各种方法的优缺点进行了分析;最后指出了制定停工设备保护方案时应注意的事项。
由于生產調整或特殊原因導緻的煉油化工裝置閒置或處于停工狀態期間,設備所處的環境條件與操作運行期間完全不同,往往比操作運行中更容易齣現劣化現象。同時,很多企業目前仍缺乏此方麵的經驗,需要有閤適的保護方案來預防停工期間的設備腐蝕問題。通過對煉化裝置閒置停工設備在停工期間存在的腐蝕環境分析,對可能髮生的3種腐蝕的腐蝕機理進行瞭探討,併給齣瞭停工設備的腐蝕影響因素;介紹瞭5種常用的閒置停工設備的保護方法及其應用情況,同時對各種方法的優缺點進行瞭分析;最後指齣瞭製定停工設備保護方案時應註意的事項。
유우생산조정혹특수원인도치적련유화공장치한치혹처우정공상태기간,설비소처적배경조건여조작운행기간완전불동,왕왕비조작운행중경용역출현열화현상。동시,흔다기업목전잉결핍차방면적경험,수요유합괄적보호방안래예방정공기간적설비부식문제。통과대련화장치한치정공설비재정공기간존재적부식배경분석,대가능발생적3충부식적부식궤리진행료탐토,병급출료정공설비적부식영향인소;개소료5충상용적한치정공설비적보호방법급기응용정황,동시대각충방법적우결점진행료분석;최후지출료제정정공설비보호방안시응주의적사항。
In the operation of refineries and petrochemical plant, the process units sometimes have to be shutdown due to adjustment of production or other reasons. As the shutdown equipment's environmental conditions are completely different from those of normal operation, the equipment is more subject to corrosion than in normal operation. Therefore, appropriate measures should be taken to protect the shutdown equipment from corrosion. Through the analysis of corrosion environment of idle equipment of refinery and petrochemical units, the possible 3 corrosion mechanisms are studied and corrosion impact factors of idle equipment are given. The 5 common corrosion protection methods and their applications are described and advantages and disadvantages of each method are studied. The precautions in development of equipment protection plan are presented.