Study on Material Corrosion Resistance of Flue Gas Waste Heat Exchanger

被引:0
|
作者
Han, Tingting [1 ]
机构
[1] Datang Northwest Elect Power Test & Res Inst, Xian, Shanxi, Peoples R China
关键词
Desulfurization; flue gas; corrosion; condensation;
D O I
10.3233/ATDE220419
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
According to the statistics of China Electricity Council, about 97% of China's coal-fired power generating units adopted wet desulfurization process (WFGD), of which the limestone-gypsum wet desulfurization process is the main process, accounting for about 91% of coal generating units. Without GGH, chimney exports can form white smoke plume. To solve the problem of environmental protection of white smoke plume and boiler flue gas waste heat recovery, the heat exchanger will be applied in flue gas condensation. But, the SO2, CO2, HCl and other complex components in flue gas can lead to equipment serious corrosion, so, it is necessary to study the heat exchanger and chimney material's corrosion resistance. In this paper, the natural corrosion experiments in the actual chimney condensate of 2205 duplex stainless steel, 2507 super duplex stainless steel, 316L austenitic stainless steel and TA2 materials were studied by hanging weight loss method and electrochemical method at different temperatures. The results show that: The existence of weld in stainless steel and TA2 will increase the corrosion tendency and corrosion rate of the material. In static immersion, the higher the temperature, the higher the corrosion rate; Corrosion rate is 2507<2205< TA2< 316L; In the presence of SO42- and F-, the oxide film of TA2 is destroyed and its corrosion resistance is reduced, which provides a certain reference for material selection of heat exchangers and chimneys.
引用
收藏
页码:63 / 71
页数:9
相关论文
共 50 条
  • [41] Effects of Wall Fins Patterns on the Flue Gas Performance of Condensing Heat Exchanger
    Cao, Weixue
    You, Xueyi
    10TH INTERNATIONAL SYMPOSIUM ON HEATING, VENTILATION AND AIR CONDITIONING, ISHVAC2017, 2017, 205 : 2281 - 2288
  • [42] Study of Corrosion Resistance Properties of Heat Exchanger Metals in Two Different Geothermal Environments
    Daviosdottir, Svava
    Gunnarsson, Baldur Geir
    Kristjansson, Kjartan Bjorgvin
    Ledesert, Beatrice A.
    Olafsson, Dagur Ingi
    GEOSCIENCES, 2021, 11 (12)
  • [43] Experimental and simulation study on heat and mass transfer characteristics in direct-contact total heat exchanger for flue gas heat recovery
    Wei, Hongyang
    Huang, Shifang
    Zhang, Xiaosong
    APPLIED THERMAL ENGINEERING, 2022, 200
  • [44] Heat exchanger corrosion
    不详
    MATERIALS PERFORMANCE, 2002, 41 (09) : 65 - 66
  • [45] Study on heat transfer performance using ceramic membrane to recover moisture and waste heat from flue gas
    Li, Xiangsheng
    Zhou, Tian
    Chen, Haiping
    Zhang, Heng
    Shen, Guoqing
    APPLIED THERMAL ENGINEERING, 2023, 231
  • [46] Experimental study on novel waste heat recovery system for sulfide-containing flue gas
    Ma, Hongqiang
    Liang, Nuo
    Liu, Yemin
    Luo, Xinmei
    Hou, Caiqin
    Wang, Gang
    ENERGY, 2021, 227
  • [47] The latent heat recovery from boiler exhaust flue gas using shell and corrugated tube heat exchanger: A numerical study
    Mohammadi, Sharare
    Ajarostaghi, Seyed Soheil Mousavi
    Pourfallah, Mohsen
    HEAT TRANSFER, 2020, 49 (06) : 3797 - 3815
  • [48] ANALYSIS OF A MODIFIED CYCLE DESIGN OF A GAS-FIRED ABSORPTION HEAT PUMP WITH A NEW FLUE GAS HEAT EXCHANGER
    Wagner, Philipp
    Rieberer, Rene
    13TH IIR GUSTAV LORENTZEN CONFERENCE ON NATURAL REFRIGERANTS: NATURAL REFRIGERANT SOLUTIONS FOR WARM CLIMATE COUNTRIES, 2018, : 572 - 579
  • [49] Experimental investigation on flue gas condensation heat recovery system integrated with heat pump and spray heat exchanger
    Zhang, Qunli
    Liu, Tao
    Cheng, Xuanrui
    Guo, Shuaifei
    Zhang, Lin
    Lu, Xiaoshu
    THERMAL SCIENCE AND ENGINEERING PROGRESS, 2024, 49
  • [50] Coal power plant flue gas waste heat and water recovery
    Wang, Dexin
    Bao, Ainan
    Kunc, Walter
    Liss, William
    APPLIED ENERGY, 2012, 91 (01) : 341 - 348