减压塔底渣油泵叶轮腐蚀原因与应对措施

发布时间：2017-12-28 10:46

本文关键词：减压塔底渣油泵叶轮腐蚀原因与应对措施　出处：《石油化工腐蚀与防护》2016年06期 　论文类型：期刊论文

【摘要】：某石化公司1.0 Mt/a减压装置减压塔底渣油泵由于频繁出现机泵震动大、输送流量波动等问题而解体检查,发现减压渣油泵叶轮腐蚀严重,分析腐蚀产物发现在减压渣油泵的叶轮上存在高温硫腐蚀、有机环烷酸腐蚀和物流高流速冲蚀;M100硫的质量分数高达2.49%、盐的质量浓度达到60 mg/L、酸值达到1.244 mg KOH/g;采用X-MET7500手持式光谱仪对叶轮材质检测,证明了叶轮材质不具备防止高温硫腐蚀的条件。提出了增加电脱盐装置,实现原料预处理;选择抗高温硫腐蚀的叶轮材质、加注缓蚀剂等应对措施。
[Abstract]:A Petrochemical Industries Co 1 Mt/a pressure relief device of vacuum tower pump residuum pump at the bottom due to frequent problems of vibration and conveying flow fluctuation and the disintegration of the check, found that the residue oil pump impeller found serious corrosion, high-temperature sulfur corrosion, organic naphthenic acid corrosion and high flow velocity in the impeller erosion logistics residue pump on analysis of corrosion products; quality concentration fraction of M100 sulfur as high as 2.49%, salt reached 60 mg/L, the acid value reached 1.244 mg KOH/g; X-MET7500 handheld spectrometer on the impeller material detected by, that does not have the impeller material to prevent the high temperature sulfur corrosion condition. The electric desalting device is added to achieve raw material pretreatment, and the material of the impeller resistant to high temperature sulfur corrosion and the injection corrosion inhibitor are selected.
【作者单位】：珠海市华峰石化有限公司;中国石油天然气股份有限公司长庆石化分公司;
【分类号】：TE986
【正文快照】： 减压渣油泵作为减压装置的重要设备,其高效、安全、平稳运行是保证企业效益和生产安全的重要手段。某石化公司减压渣油泵投入生产以来,腐蚀严重、机泵震动大、输送流量波动等问题频频发生,因此,寻找减压渣油泵存在的问题显得尤为重要。1减压渣油泵叶轮腐蚀情况某石化公司1.0 M

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