Corrosion resistance properties of stainless steel-based porous layer of high flux exchanging tube in acetic acid solution

doi:10.16085/j.issn.1000-6613.2017.06.041

Abstract

Abstract: Porous surface high flux exchanging tube is a high efficiency heat transfer component. In order to improve the corrosion resistance of porous surface high flux exchanging tube,power sintering was adopted to develop a stainless steel-based micro-porous layer on the surface of stainless stain tube. All the experiments were conducted in the boiling ethylene glycol solution with acetic acid. With the aids of electric scanning microscope method(SEM),corrosion weight loss method and electrochemical comparison measurement,the corrosion resistance of stainless steel-based porous layer on high flux heat exchanger tube was studied compared with copper-based and iron-based porous layer. The results show that corrosion resistance of stainless steel-based porous layer is superior to copper-based and iron-based materials. In the boiling immersion test,the mass loss rate of stainless steel-based porous layer is about 1/5—1/3 of iron-based porous layer,and 3/10—4/7 of copper-based porous layer. The corrosion resistance of stainless steel-based porous layer decreases with acetic acid concentration at the range of 0.1—10mol/L and at room temperature. Additionally,the corrosion resistance of stainless steel-based porous layer is higher than copper-based and iron-based porous layers throughout the experiment.

Key words: stainless steel, porous high flux heat exchanger tube, acetic acid, corrosion, sintering

摘要： 表面多孔高通量换热管是一种高效的强化沸腾传热元件。为了提高表面多孔高通量换热管的耐腐蚀性能，本文采用粉末烧结工艺在不锈钢换热管表面烧结了一层不锈钢基多孔层，模拟含乙酸的乙二醇溶液蒸发沸腾工况，并借助扫描电子显微镜（SEM）、腐蚀失重法和电化学方法对比研究了不锈钢基、铁基、铜基3种高通量换热管表面多孔层的耐腐蚀性能。结果表明，所开发的不锈钢基表面多孔层相比铁基和铜基表面多孔层具有更加优良的耐腐蚀性能。在沸腾浸泡实验条件下，不锈钢基多孔层的腐蚀速率约为铁基多孔层腐蚀速率的1/5～1/3，为铜基多孔层的3/10～4/7。在0.1～10mol/L的实验浓度范围内，常温下不锈钢基多孔层耐蚀性随着乙酸浓度的增加而降低，但仍明显优于铁基、铜基多孔层。

关键词: 不锈钢, 多孔高通量换热管, 乙酸, 腐蚀, 烧结

CLC Number:

TQ050.9

TAO Liangquan, LIU Jinglei, XIA Xiangming, FAN Genfang, CAO Honghai, XU Hong. Corrosion resistance properties of stainless steel-based porous layer of high flux exchanging tube in acetic acid solution[J]. Chemical Industry and Engineering Progress, 2017, 36(06): 2255-2261.

陶良权, 刘京雷, 夏翔鸣, 范根芳, 曹洪海, 徐宏. 不锈钢基高通量换热管多孔层的耐乙酸腐蚀特性[J]. 化工进展, 2017, 36(06): 2255-2261.

References

[1] 徐宏,戴玉林,夏翔鸣,等.高通量换热器研制及在大型石化装置中的节能应用[J].太原理工大学学报,2010,41(5):577-580. XU H,DAI Y L,XIA X M,et al.Manufacture of high flux heat exchanger and its application in large scale petrochemical equipment[J].Journal of Taiyuan University of Technology,2010,41(5):577-580.
[2] 赫彤.表面多孔管的研制[J].石油化工技术,1978(5):475-479. HE T.Development of porous surface tube [J].Journal Petrochemical Technology,1978(5):475-479.
[3] 刘京雷,徐宏,徐鹏,等.高通量换热器研制开发及应用[C]//中国压力容器协会.全国第四界换热器学术会议论文集.合肥:合肥工业大学出版社.2011:45-49. LIU J L, XU H, XU P,et al.Manufacture and applications of high flux heat exchanger[C]//China Pressure Vessel Association.The Fourth National Academic Conference Papers Corpus of Heat Exchange.Hefei:Hefei University of Technology Press,2011:45-49.
[4] 刘阿龙,徐宏,金伟,等.烧结型多孔管在NaCl溶液中的传热与结构特性[J].华东理工大学学报(自然科学版),2009,35(2):327-323. LIU A L, XU H, JIN W,et al.Heat transfer and fouling characteristics of sintered porous surface tubes in NaCl solution[J]. Journal of East China University of Science and Technology,2009,35(2):327-323.
[5] WETT T.High-flux heat-exchange surface allows area to be cut by over 80%[J].The Oil and Gas Journal,1971,69(52):118-120.
[6] 陈文造.铝多孔表面冷凝-蒸发器的应用[J].石油化工设备技术,1993,14(4):70-72. CHEN W Z.The application of porous aluminum tube in condensator and evaporator [J].The Technology of Petrochemical Equipment,1993,14(4):70-72.
[7] 杨东,李永星,陈听宽,等.多孔表面管内高沸点工质的强化流动沸腾换热与阻力特性[J].化工学报,2004,55(10):1631-1637. YANG D,LI Y X,CHEN T K,et al.Enhanced flow boiling heat transfer of high saturation temperature organic fluid in vertical porous tube [J].CIESC Journal,2004,55(10):1631-1637.
[8] O'NEILL P S,GOTTZMAN C F,TCRBOT J W.Heat exchanger for NGL[J].Chemical Engineering Progress,1971,67(7):80-82.
[9] GOTTZMAN C F,O'NEILL P S,MILTON P E.High efficiency heat exchanger[J].Chemical Engineering Progress,1973,69(7):69-75.
[10] WOLF C W.High flux tubing conserves energy[J].Chemical Engineering Progress,1976,72(7):53-55.
[11] 中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.金属和合金的腐蚀不锈钢晶间腐蚀试验方法:GB/T 4334—2008[S].北京:中国标准出版社,2009. General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China.Corrosion of metals and alloys—Test methods for intergranular corrosion of stainless steels:GB/T 4334—2008[S].Beijing:Standards Press of China,2009.
[12] 马红杰,黄新泉,李建辉.再沸器腐蚀原因分析[J].石油化工,2010,24(2):26-28. MA H J,HUANG X Q,LI J H.Analysis of corrosion cause in the reboiler[J].Petrochemical,2010,24(2):26-28.
[13] 中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.金属和合金的腐蚀——腐蚀试样上腐蚀产物的清除:GB/T 16545—2015[S].北京:中国标准出版社,2015. General Administration of Quality Supervision,Inspection and Quarantine of the People's Republic of China,Standardization Administration of the People's Republic of China.Corrosion of metals and alloys——removal of corrosion products from corrosion test specimens:GB/T 16545—2015[S].Beijing:Standards Press of China,2015.
[14] YU L P,YAO J,HE Y H,et al.The corrosion behavior of sintering micro-porous Ni-Cu alloy in hydrofluoric acid solution [J].Journal of Alloys and Compounds,2015,638:7-13.
[15] 吴靓,董虹星,贺跃辉.Ni₃Al金属间化合物多孔材料的抗盐酸腐蚀性能[J].中国有色金属学报,2010,20(8):1558-1565. WU L,DONG H X,HE Y H.Corrosion resistance of porous Ni₃Al intermetallics in hydrochloric acid solution [J].The Chinese Journal of Nonferrous Metals,2010,20(8):1558-1565.
[16] GREGORUTTI R W,ELSBER C I,GARRIDO L,et al.Corrosion in 316L porous prostheses obtained by gelcasting [J].Procedia Materials Science, 2015,9:279-284.
[17] SUN X T,KANG Z X,JIANG H J,et al.A comparative study on the corrosion behavior of porous and dense NiTi shape memory alloys in NaCl solution [J].Electrochimica Acta,2011,56:6389-6396.
[18] YU L P,LEI T,NAN B,et al.Characteristics of a sintered porous Ni-Cu alloy cathode for hydrogen production in a potassium hydroxide solution[J].Energy,2016,97:498-505.
[19] RYBALKA K V,BEKETAEVA L A.Electrochemical behavior and the rate ofgeneral corrosion of NiAl intermetallic compound in the unbuffered sodium chloride solutions[J].Corrosion Science,2011,53(2):630-636.
[20] KICHIGIN W I,POLYAKOVA M V,SYUR T A,et al.Application of electrochemical impedance method to studying corrosion of porous powder steels[J].Protection of Metals,2002,38(6):632-639.
[21] HOSSEINI S A,AKBARINIA S,MOHAMMADYANI D,et al.Enhanced corrosion resistance of porous NiTi with plasma sprayed alumina coating[J].Corrosion Engineering,Science and Technology,2015,50(8):595-600.
[22] 陈德和.不锈钢及其热处理[M].北京:机械工业出版社,1973:13-14. CHEN D H.Stainless steel and heat treatment [M].Beijing:China Machine Press,1973:13-14.