摘要 换热器是煤化工企业重要的换热设备,由于煤化工工艺介质条件的复杂性,造成的换热器腐蚀直接影响到企业生产运行的稳定与安全。通过对煤化工企业换热器腐蚀现状的调查分析,综述了在运行过程中的各种腐蚀形态、腐蚀产生的机理和影响因素;探讨了常用的腐蚀防护研究方法,对比分析了换热器的工作原理及优缺点;讨论了煤化工换热器的腐蚀防护措施,并对今后换热器腐蚀机理的研究方向、方法以及防腐措施发展前景进行了展望。
关键词 :
煤化工 ,
换热器 ,
腐蚀机理 ,
腐蚀防护
Abstract :Heat exchanger is an important heat exchange equipment in coal chemical enterprises, due to the complexity of process medium conditions in coal chemical, the corrosion of heat exchanger directly affects the stability and safety of production and operation of enterprises. Based on the investigation and analysis of the corrosion status of heat exchangers in coal chemical enterprises, various corrosion forms, corrosion generation mechanism and influencing factors during operation were summarized, the common research methods of corrosion protection were discussed, and the working principle, advantages and disadvantages of heat exchanger were compared and analyzed, and the corrosion protection measures of heat exchanger in coal chemical industry were discussed, and the research direction, methods and development prospect of corrosion mechanism of heat exchanger in the future were prospected.
Key words :
coal chemical industry
heat exchanger
corrosion mechanism
corrosion protection
基金资助: 宁夏自然科学基金项目(2021AAC03082)
通讯作者:
李宏燕( 1976— ),女,宁夏中卫人,博士。
作者简介 : 袁天孝( 1996— ),男,河北蠡县人,在读研究生。
[ 1 ] 董舒民,姜德林. 炼油厂换热器腐蚀分析及防护[ J ]. 化工技术与开发,2006,35( 10 ):34 - 35.
[ 2 ] 伏建华,李志刚. 缓蚀剂在苯乙烯精馏装置中的应用[ J ]. 石油化工腐蚀与防护,2011,28( 4 ):5 - 52.
[ 3 ] 李瑞龙,陈凑喜,杨靖华. 煤化工装置循环水换热器腐蚀原因分析及防护措施[ J ]. 化工技术与开发,2016,45( 12 ):52 - 53,57.
[ 4 ] 丁顺利. 换热器换热管氯离子应力腐蚀开裂事故案例分析[ J ]. 中国特种设备安全,2018,34( 7 ):61 - 66.
[ 5 ] Hodgkiess T, Neville A, Shrestha S. Electrochemical and mechan-
ical interactions during erosion-corrosion of a high-velocity oxy-fu-el coating and a stainless steel[ J ]. Wear, 1999(233 - 235)A: 623 - 634.
[ 6 ] A Neville,T Hodgkiess, J T Dallas. A study of the erosion-cor-
rosion behaviour of engineering steels for marine pumping applications[J]. Wear, 1995(186): 497-507.
[ 7 ] M M Stack, N Corlett, S Turgoose. Some though-ts on modelling the effects of oxygen and particle concentrate on the erosion - corrosion of steels in aqueous slurries[ J ]. Wear, 2003, 255( 1 ): 225 - 236.
[ 8 ] Burstein G T, Sasaki K. Effect of impact angle on the slurry erosi-
on-corrosion of 304 L stainless steel[ J ]. Wear, 2000, 240(1/2): 80 - 94.
[ 9 ] Zu J B, Burstein G T, Hutchings I M. A comparative study of the slurry erosion and free-fall particle erosion of aluminium[ J ]. 1991, 149(1-2): 73 - 84.
[ 10 ] Li Y, Burstein G T, Hutchings I M. The influence of corrosion on the erosion of aluminium by aqueous silica slurries[ J ]. Wear, 1995(186/187): 515 - 522.
[ 11 ] B D Jana, M M Stack. Modelling impact angle effe-cts on erosion-
corrosion of pure metals: Construction of materials performance maps[ J ]. Wear, 2005, 259( 1 ): 243 - 255.
[ 12 ] Finnie I. Erosion of surfaces by solid particles[ J ]. Wear, 1960, 3( 2 ): 87 - 103.
[ 13 ] 朱 娟,张乔斌,陈 宇,等. 冲刷腐蚀的研究现状[ J ]. 中国腐蚀与防护学报,2014,34( 3 ):199 - 210.
[ 14 ] H Meng, X Hu, A Neville. A systematic erosi-on-corrosion study of two stainless steels in marine conditions via experimental design[ J ]. Wear, 2006, 263( 1 ): 355 - 362.
[ 15 ] 王海红,王 平,闫龚杰,等. N80套管钢在液固两相流中的冲刷腐蚀行为[ J ]. 石油工程建设,2021,47( 1 ):10 - 14.
[ 16 ] 郑玉责,姚治铭,何莉,等. 泥浆型冲蚀中冲刷和腐蚀变互作用研究综述[ J ]. 材料科学与工程,1994( 4 ):27 - 31.
[ 17 ] 焦 洋,张胜寒,檀 玉. 核电站用不锈钢在高温高压水中应力腐蚀开裂行为的研究进展[ J ]. 中国腐蚀与防护学报,2021,41( 4 ):417 - 428.
[ 18 ] 潘 巍,李 瑜,孙昭宜,等. 电化学阻抗谱(EIS)技术在腐蚀防护中的应用现状[J/OL]. 化工新型材料:1 - 16[2021-07-08].
[ 19 ] 葛红花,周国定,吴文权. 硫离子对316 L不锈钢耐蚀性的影响[ J ]. 华北电力技术,2003,33( 8 ):46 - 49.
[ 20 ] Karel Bouzek, Henry Bergmann. Comparison of pure and white c-
ast iron dissolution kinetics in highly alkalineelectrolyte[ J ]. Corrosion Science, 1999, 41( 11 ): 2 113 - 2 128.
[ 21 ] 欧阳维真,王 蕾,许淳淳. 带锈铁器在海水介质中腐蚀行为的电化学阻抗研究[ J ]. 桂林工学院学报,2008( 3 ):389 - 392.
[ 22 ] 贾静焕,刘智勇,杜翠薇,等. 316L不锈钢在高pH碱性硫化物环境中的应力腐蚀行为[ J ]. 表面技术,2015,44( 3 ):36 - 40,56.
[ 23 ] Yuan Li, Y Frank Cheng. Passive film growth on carbon steel and its nanoscale features at various passivatingpotentials[ J ]. Applied Surface Science, 2017( 396 ): 144 - 153.
[ 24 ] Wang Z, Zhang L, Tang X, et al. The surface characterization and passivebehavior of Type 316L stainless steel in H2S-containing conditions[ J ]. Applied Surface Science, 2017( 423 ): 457 - 464.
[ 25 ] 王 竹,冯 喆,张 雷,等. 电化学方法在不锈钢腐蚀研究中的应用现状及发展趋势[ J ]. 工程科学学报,2020,42( 5 ):549 - 556.
[ 26 ] Wang Z, Zhou Z Q, Zhang L, et al. Effect of pH on the Electroche-
mical B-ehaviour and Passive Film Composition of 316L StainlessSteel[ J ]. 2019, 32( 5 ): 585 - 598.
[ 27 ] Farhad Daneshvar Fatah, Fu Yijun, Liu Changan, et al. Caustic corrosion in a boiler waterside tube: Root cause and mechanism[ J ]. Engineering Failure Analysis, 2013( 28 ): 69 - 77.
[ 28 ] 王 博,李德超,李庆华,等. 硝酸重沸器的腐蚀失效分析和防护对策[ J ]. 表面技术,2011,40( 1 ):63 - 67.
[ 29 ] R Cabrera-Sierra, M Miranda-Hernanclez, E Sosa, etal. Electroc-
hemical characterization of the different surface states formed in the corrosion of carbon steel in alkaline sour medium[ J ]. Corrosion Science, 2001, 43( 12 ): 2 305 - 2 324.
[ 30 ] 陈彩霞,凌 娟,王一宁. 洗涤塔腐蚀原因分析与预防[ J ]. 压力容器,2018,35( 12 ):61 - 68.
[ 31 ] 宋迎剑. 某炼厂柴油加氢装置高压换热器铵盐腐蚀内漏分析[ J ]. 化工管理,2017( 26 ):14.
[ 32 ] 吕 慧,戴新丽,高建权. 炼油厂循环水系统微生物影响因素及控制[ J ]. 全面腐蚀控制,2009,23( 11 ):41 - 43.
[ 33 ] 周艳军. 循环水阻垢缓蚀剂P-1的研制[ J ]. 天津化工,2002( 1 ):22 - 23.
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