氨法脱硫硫酸铵浆液腐蚀及防护对策
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摘要
本文针对氨法脱硫硫酸铵浆液腐蚀现状,对硫酸铵浆液的腐蚀机理进行了分析,得出氯离子点腐蚀、硫酸盐和亚硫酸盐结晶腐蚀以及硫酸铵浆液固体颗粒的冲刷磨损是硫酸铵浆液腐蚀的主要形式。本文通过对橡胶衬里、玻璃钢、合金钢等常用防腐材料的使用范围和施工工艺的对比分析,提出了氨法脱硫工艺中浆液防腐材料的选择标准和硫酸铵浆液腐蚀的防护及控制措施。
Accroding to the corrosion status of ammonium sulfate desulphurization in a power plant,the corrosion mechanism of ammonium sulfate slurry is analyzed. The spitting corrosion, crystal corrosion,and erosion corrosion are the main corrosion forms. The commonly used anticorrosive materials, such as rubber lining, FRP, alloy steel and so on, are compared and analyzed. The standard for selection of anticorrosive materials in ammonia desulphurization process are presented.
Accroding to the corrosion status of ammonium sulfate desulphurization in a power plant,the corrosion mechanism of ammonium sulfate slurry is analyzed. The spitting corrosion, crystal corrosion,and erosion corrosion are the main corrosion forms. The commonly used anticorrosive materials, such as rubber lining, FRP, alloy steel and so on, are compared and analyzed. The standard for selection of anticorrosive materials in ammonia desulphurization process are presented.
引文
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[16]李守信等.烟气脱硫系统的防腐问题[J].华北电力大学学报,2000,27(4):70-74.
[17]麦秀树.氨法脱硫吸收塔内不锈钢腐蚀缺陷分析及处理[J].广西电力,2014,37(5):82-85.
[18]赵礼金.发电厂湿法烟气脱硫FGD橡胶防腐和玻璃鳞片防腐的比较[J].能源工程,2008,6:55-57.
[19]Don Kelley.The use of FRP in FGD applications[J].Reinforced Plastics,2007,15(1):14-19.
[20]梁志超.湿法烟气脱硫塔腐蚀及重点区域防护对策[J].全面腐蚀控制,2017,31(4):66-69.
[21]许青.烟气脱硫装置(FGD)耐腐蚀合金的选择与施工要领[J].化肥设计,2010,48(6):7-8.
[22]魏受玲.镍基合金材料在高含氯离子环境中的抗腐蚀性能[D]:[西安石油大学硕士学位论文].西安:西安石油大学,2011,30-31.
[2]Chu H,Chien T W.Simultaneous absorption of SO2 and No from flue gas with KMnO4/Na OH solutions[J].The Science of the Total Environment,2001,275:127-135.
[3]周理明等.氨法烟气脱硫过程的工艺优化[J].化学工程,2014,42(4):7-12.
[4]Gao X,Ding H L,Du Z.Gas-liquid absorption reaction between(NH4)2SO3 solution and SO2 for ammonia-based wet flue gas desulfurization[J].Applied Energy,2010,87(8):2647-2651.
[5]潘丹萍.氨法烟气脱硫气溶胶特性试验研究[J].四川大学学报(工程科学版),2015,47(6):204-209.
[6]鲍静静.湿式氨法烟气脱硫中气溶胶的形成特性研究[J].高校化学工程学报,2010,24(2):325-330.
[7]张红才.煤粉锅炉烟气的氨法脱硫技术改造及实践[J].化工设备与管道,2014,51(3):30-34.
[8]袁永权,廖永进.湿法脱硫系统吸收塔入口腐蚀环境及防腐方案的探讨[J].广东电力,2010,23(5):21-22.
[9]高树爱.2205型双相不锈钢在大型火力发电厂脱硫吸收塔中的应用[J].能源与节能,2012,84(9):98-99.
[10]关亚静.烟气脱硫装置的防腐材料[J].河北电力技术,2000,3:28-29.
[11]何翼云.氨法烟气脱硫技术及其进展[J].化工环保,2012,32(2):141-144.
[12]郑卫京,罗永禄,张可矩.火电厂烟气脱硫装置腐蚀与防护[J].电力环境保护,1999,15(2):23-26.
[13]王小平,孟照杰.燃煤电厂湿法脱硫中的腐蚀环境和防腐技术[J].中国电力,2000,33(10):68-71.
[14]曾庭华,廖永进.连州电厂烟气脱硫系统内的腐蚀环境和防腐措施分析[J].热力发电,2003,32(1):44-47.
[15]Honga,Seok-Joo.Materials for flue gas desulfurization systems operating in Korea and their failures[J].Materials at High Temperatures,2007,24(4):289-293.
[16]李守信等.烟气脱硫系统的防腐问题[J].华北电力大学学报,2000,27(4):70-74.
[17]麦秀树.氨法脱硫吸收塔内不锈钢腐蚀缺陷分析及处理[J].广西电力,2014,37(5):82-85.
[18]赵礼金.发电厂湿法烟气脱硫FGD橡胶防腐和玻璃鳞片防腐的比较[J].能源工程,2008,6:55-57.
[19]Don Kelley.The use of FRP in FGD applications[J].Reinforced Plastics,2007,15(1):14-19.
[20]梁志超.湿法烟气脱硫塔腐蚀及重点区域防护对策[J].全面腐蚀控制,2017,31(4):66-69.
[21]许青.烟气脱硫装置(FGD)耐腐蚀合金的选择与施工要领[J].化肥设计,2010,48(6):7-8.
[22]魏受玲.镍基合金材料在高含氯离子环境中的抗腐蚀性能[D]:[西安石油大学硕士学位论文].西安:西安石油大学,2011,30-31.