Please wait a minute...
浙江大学学报(工学版)
能源工程     
生物质锅炉钢材在氯化钾接触条件下腐蚀特性
余春江,王准,龚彬,骆仲泱
浙江大学 能源清洁利用国家重点实验室,浙江 杭州 310027
Corrosion characteristics of biomass bolier steel in KCl contact condition
YU Chun-jiang,WANG Zhun,GONG Bin,LUO Zhong-yang
State Key Laboratory of Clean Energy Utilization of Zhejiang University, Hangzhou 310027, China
 全文: PDF(2767 KB)  
摘要:
为了比较不同材料抗腐蚀特性,模拟生物质锅炉过热器区的条件,在550~700 ℃范围内对生物质锅炉常用的20G、12Cr1MoVG、Super304、SUS316、TP347H、HR3C等钢材进行腐蚀特性对比研究.通过测定试样的增重量,得出腐蚀特性曲线;利用能谱分析仪、扫描电镜和X射线衍射仪对试样腐蚀后的形貌特征、元素质量分数和腐蚀产物的组成进行分析.结果表明,在高温下,常用钢材抗KCl高温腐蚀能力的排序为HR3C>TP347H>Super304>SUS316>12Cr1MoVG>20G;温度和金属表面KCl的附着量对高温腐蚀具有重要影响;KCl高温下可以和合金钢表面镍铬氧化物钝化层反应,直接破坏钝化层的保护作用,从而加速氧化腐蚀的进行.
关键词: 锅炉高温腐蚀生物质燃烧过热器钢材KCl    
Abstract:
To compare the corrosion behavior of different stainless steels under typical condition of superheater in biomass fueled boiler, the experimental research was carried out. Commonly used boiler steels such as 20G, 12Cr1MoVG, Super304, SUS316, TP347H and HR3C were tested and the temperature arrangement of  550~700℃ was chosen. The corrosion characteristic curve is drawn through measuring the increment of sample weight. Detailed analysis using Energy Dispersive System(EDS), Scanning Electron Microscope(SEM) and X-ray Diffractometer(XRD) was also conducted to study the morphology features, element content and composition of corrosion products after the samples were collected. The result shows that under high-temperature, the order of those stainless steels’ resistance to KCl corrosion is HR3C>TP347H>Super304>SUS316>12Cr1MoVG>20G. The temperature and adhesion amount of KCl on the metal surface also have significant influence on the rate of corrosion. It was found that the nickel-chromium based passivation layer of the materials is reactive under KCl environment and the damage of this layer is the direct reason for high rate high-temperature corrosion.
Key words: boiler    superheater    biomass combustion    steel    high- temperature corrosion    KCl
出版日期: 2014-12-08
:  TK 6  
基金资助:
国家自然科学基金重点资助项目(51336008);科技部国际合作专项(2011DFA61060);国家“十二五”科技支撑计划重点资助项目(2012BAA09B01)
服务  
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章  
王准
余春江
龚彬
骆仲泱

引用本文:

余春江,王准,龚彬,骆仲泱. 生物质锅炉钢材在氯化钾接触条件下腐蚀特性[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2014.11.019.

YU Chun-jiang,WANG Zhun,GONG Bin,LUO Zhong-yang. Corrosion characteristics of biomass bolier steel in KCl contact condition. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2014.11.019.

链接本文:

http://www.zjujournals.com/xueshu/eng/CN/10.3785/j.issn.1008-973X.2014.11.019        http://www.zjujournals.com/xueshu/eng/CN/Y2014/V48/I11/2046

[1] JOHANSEN J M, JAKOBSEN J G, FRANDSEN F J. Release of K Cl and S during pyrolysis and combustion of high-chlorine biomass [J]. Energy Fuels, 2011, 25(11): 4961-4971.
[2] SANDBERG J, KARLSSON C, FDHILA R B .A 7 year long measurement period investigating the correlation of corrosion, deposit and fuel in a biomass fired circulated fluidized bed boiler [J]. Applied Energy, 2011, 88(1): 99-110.
[3] NIELSEN H P, FRANDSEN F J, DAM-JOHANSEN K. The implications of chlorine associated corrosion on the operation of biomass fired boilers [J].Progress in Energy and Combustion Science, 2000, 26(3):283-293.
[4] LI Lian-ming, YU Chun-jiang, HUANG Fang, et al. Study on the deposits derived from a biomass circulating fluidized-bed boiler [J]. Energy Fuels, 2012, 26(9): 6008-6014.
[5] SKRIFVARS B, BACKMAN R, HUPA M, et al. Corrosion of superheater steel materials under alkali salt deposits part 1: the effect of salt deposit composition and temperature [J]. Corrosion Science, 2008, 50(5):1274-1282.
[6] SKRIFVARS B,WESTEN K M,HUPA M, et al. Corrosion of superheater steel materials under alkali salt deposits. part 2: SEM analyses of different steel materials [J] .Corrosion Science ,2010, 52(3):1011-1019.
[7] 李庆, 宋军政, 聂志钢. 130t/h 燃生物质锅炉过热器管子腐蚀原因分析[J]. 发电设备, 2009, 3: 214-218.
Li Qing, Song Jun-zheng, Nie Zhi-gang. Cause analysis on corrosion of a 130t/h biomass-fired boilers superheater tubes [J]. Power Equipment, 2009, 3: 214-218.
[8] VAN LOO S, KOPPEJAN J. The handbook of biomass combustion and co-firing [M]. [S. l.]: Earthscan Ltd, 2008.
[9] LITH S C V, FRANDSEN F J, MONTGOMERY M, et al. Lab-scale investigation of deposit-induced chlorine corrosion of superheater materials under simulated biomass-firing conditions. part 1: Exposure at 560° C[J]. Energy Fuels, 2009,23(7), 3457-3468.
[10] DANIEL P L, RAPP R A, FONTANA M G, et al.Advances in corrosion science and technology[M].New York:Plenum Press, 1976.
[11] CHANG Y N, WEI F I. High-temperature chlorine corrosion of metals and alloys[J].Journal of Materials Science,1991,26(14):3693-3698.
[12] RAPP R A,DEVAN J H,DOUGLASS D L. High temperature corrosion in energy systems [J].Master Sci Eng, 1981,50(1):117.
[13] FOLKESON N, JONSSON T, HALVARSSON M, et al.The influence of small amounts of KCl (s) on the high temperature corrosion of a Fe-225Cr-1Mo steel at 400and 500℃[J] . Materials and Corrosion, 2011, 62(7):606-615.
[14]SHINATA Y .Accelerated oxidation rate of chromium induced by sodium chloride [J].Oxidation of Metals, 1987,27(5):315-332.
[15] JONSSON T, FOLKESON N, SVENSSON J E, et al. An ESEM in situ investigation of initial stages of the KCl induced high temperature corrosion of a Fe–225 Cr–1Mo steel at 400° C [J]. Corrosion Science ,2011, 53(6): 2233-2246.
[16] LEHMUSTO J,SKRIFVARS B J,YRJAS P, et al.High temperature oxidation of metallic chromium exposed to eight different metal chlorides [J]. Corrosion Science, 2011,53(10):3315-3323.
[17] LEHMUSTO J, SKRIFVARS B J, YRJAS P, et al. Comparison of potassium chloride and potassium carbonate with respect to their tendency to cause high temperature corrosion of stainless 304L steel[J].Fuel Processing Technology,2013,105: 98-105.
[18] PETTERSSON J, FOLKESON N, JOHANSSON L G, et al. The effects of KCl, K2SO4 and K2CO3 on the high temperature corrosion of a 304-type austenitic stainless steel[J].Oxidation of metals,2011,76(1/2):93-109.
[19] 韦威,黄芳,余春江,et al.生物质燃烧设备高温腐蚀问题初探[J].能源工程,2011, (2):23-28.
WEI Wei,HUANG Fang,YU Chun-jiang,et al. Primary investigation of high-temperature corrosion problems in biomass combustion equipment [J].Energy Engineering,2011, (2):2328.
[20] 余春江,骆仲泱,张文楠.碱金属及相关无机元素在生物质热解转化析出[J].燃烧化学学报,2000,28(5):420-425.
YU Chun-jiang, LUO Zhong-yang, Zhang Wen-nan. Inorganic material emission during biomass pyrolysis [J].Journal Of Fuel Chemistry And Technology , 2000, 28(5):420-425.
[21] 印佳敏,吴占松.TP347H在生物质锅炉过热器气相条件下的腐蚀性(II)[J].热力发电,2009 ,38(7):27-31.
YIN Min-jia, WU Zhan-song. Corrosion characters of TP347H steel under atmosphere of superheaters of biomass burned boilers(II)[J]. Thermal Power Generation, 2009 ,38(7):2731.
[1] 廖燕华, 谢旭, 唐站站. Q345qC钢及焊接接头低周疲劳性能与断裂机理[J]. 浙江大学学报(工学版), 2018, 52(1): 73-81.
[2] 钟崴, 彭梁, 周永刚, 徐剑, 从飞云. 基于小波包分析和支持向量机的锅炉结渣诊断[J]. 浙江大学学报(工学版), 2016, 50(8): 1499-1506.
[3] 周永刚,李培,敖翔,赵虹. 基于燃烧均匀性的对冲燃烧锅炉高温腐蚀抑制[J]. 浙江大学学报(工学版), 2015, 49(9): 1768-1775.
[4] 龚彬, 余春江, 王准, 骆仲泱. 生物质炉排锅炉不同受热面沉积特性[J]. 浙江大学学报(工学版), 2015, 49(8): 1578-1584.
[5] 王彤, 谢旭, 唐站站, 沈赤. 考虑复杂应变历史的钢材修正双曲面滞回模型[J]. 浙江大学学报(工学版), 2015, 49(7): 1305-1312.
[6] 董康, 周昊, 杨玉, 王凌力, 岑可法. 二次风风量对旋流燃烧器气固流动特性的影响[J]. 浙江大学学报(工学版), 2014, 48(12): 2162-2171.
[7] 游卓,王智化,周志军,胡昕,朱燕群,周俊虎,岑可法. MW燃煤锅炉富氧燃烧改造及NOx排放的数值模拟[J]. 浙江大学学报(工学版), 2014, 48(11): 2080-2086.
[8] 钟崴,杨志群,宋冬根,胡继光,童水光. 闪速炼铜余热锅炉辐射冷却室水动力性能设计[J]. J4, 2013, 47(11): 1970-1975.
[9] 杨文闯, 杨卫娟, 周志军, 袁炜东, 陈瑶姬, 周俊虎, 岑可法. 不同二次风角度的W炉冷态流场实验研究[J]. J4, 2013, 47(1): 139-145.
[10] 钟崴, 丁晟, 宋冬根, 鞠霞, 童水光. 闪速炼铜余热锅炉辐射室流场温度场数值模拟[J]. J4, 2012, 46(2): 321-326.
[11] 刘富君, 孔帅, 凌张伟, 郑慕林, 钱岳强, 金南辉, 王强, 李翔. 基于风险检验技术的电站锅炉过热器评定方法[J]. J4, 2011, 45(10): 1791-1798.
[12] 吕钰, 王智化, 杨卫娟, 周俊虎, 何沛, 岑可法. 大型燃煤锅炉SNCR过程数值研究[J]. J4, 2010, 44(4): 750-755.
[13] 郑成航, 程乐鸣, 骆仲泱, 王勤辉, 施正伦, 岑可法. 裤衩型300 MW循环流化床炉膛二次风数值模拟[J]. J4, 2010, 44(4): 743-749.
[14] 谢金芳, 钟崴, 周懿, 吴燕玲, 童水光. 基于基环平差流量调节的锅炉水动力计算方法[J]. J4, 2010, 44(3): 499-504.
[15] 钟崴, 吴燕玲, 童水光, 葛俊旭, 周懿, 谢金芳. 基于遗传算法的锅炉对流受热面优化设计[J]. J4, 2010, 44(12): 2291-2296.