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WANG Xue, HU Lei, CHEN Dongxu, SUN Songtao. Influence of internal air flow on temperature field of large diameter and thick wall P92 pipe during local PWHT[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(11): 104-108.
Citation: WANG Xue, HU Lei, CHEN Dongxu, SUN Songtao. Influence of internal air flow on temperature field of large diameter and thick wall P92 pipe during local PWHT[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(11): 104-108.
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Influence of internal air flow on temperature field of large diameter and thick wall P92 pipe during local PWHT

  • 1.

    Key Laboratory of Transients in Hydraulic Machinery, Ministry of Education, Wuhan University Wuhan 430072, China

  • 2.

    Henan No. 1 Thermal Power Construction Company, Zhengzhou 450001, China

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  • Received Date: May 12, 2016
    Graphical Abstract
    • Abstract
  • A conjugate heat transfer model is proposed based on the Ansys CFX code. The established model which has been verified by experiment is used to simulate the temperature distributions of P92 pipe during PWHT in the case of air flow in pipe with different velocities. The results show that the velocity of air flow in pipe has little influence on the temperature distributions of the outer wall, especially on the weld metal region, but its increase significantly reduces the temperature on inner wall of pipe and rises temperature gradient along the axial direction of pipe. The temperature difference between the inner and outer wall, as well as the axial temperature gradient increases linearly with the increase of the air flow velocity. For each 1m/s increase of the velocity of air flow in pipe, the temperature difference between inner and outer wall will increase by 5.0℃, and the axial temperature gradients on inner and outer wall of pipe increase 0.03 and 0.02, respectively. Meanwhile, the soak band width on inner wall will also be reduced obviously. Due to the influence on the temperature field of pipe during local PWHT of P92 steel, the air flow in pipe should be suppressed, otherwise, it is necessary to increase the width of heating zone.
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    • References (12)
  • Bugge J, Kjaer S, Blum R. High-efficiency coal-fired power plants development and perspectives[J]. Energy, 2006, 31:1437-1445.
    Wang Xue, Xu Qiang, Yu Shumin, et al. Laves-phase evolution during aging in fine grained heat-affected zone of a tungsten-strengthened 9% Cr steel weldment[J]. Journal of Materials Processing Technology, 2015, 219:60-69.
    Wang Xue, Zheng Jiangpeng, Shang Wei. Prediction of Ac1 temperature in P92 steels weld metal[J]. China Welding, 2012, 21(4):8-14.
    Vaillant J C,Vandenberghe B, Hahn B, Heuser H, et al. T/P23, 24, 911 and 92:new grades for advanced coal-fired power plants-properties and experience[J]. International Journal of Pressure Vessels and Piping, 2008, 85:38-46.
    肖凌, 朱平, 史春元, 等. P92新型耐热钢焊接粗晶区回火参数选择[J]. 焊接, 2006(11):52-55. Xiao Ling, Zhu Ping, Shi Chunyuan, et al. Suitable temper parameter for coarse grain zone of new type heat-resistant steel P92[J]. Welding & Joining, 2006(11):52-55.
    汪建华, 陆皓, 村川英一. 局部焊后热处理加热宽度的直接评定方法[J]. 焊接学报, 2000, 21(2):39-42. Wang Jianhua, Lu Hao, Murakawa H. A direct assessing method of heated widths during local PWHT[J]. Transactions of the China Welding Institution, 2000, 21(2):39-42.
    陆皓, 汪建华, 村川英一. 三维管接头焊后局部热处理加热宽度准则[J]. 焊接学报, 2001, 22(1):11-14. Lu Hao, Wang Jianhua, Murakawa H. Heated band width criterion in local post weld heat treatment of three dimensional tubular joint[J]. Transactions of the China Welding Institution, 2001, 22(1):11-14.
    陆皓, 汪建华, 村川英一. Cr-Mo钢管子局部焊后热处理加热宽度准则的确定[J]. 焊接学报, 2006, 27(3):5-8. Lu Hao, Wang Jianhua, Murakawa H. Determination of heated band with criterion of local post weld heat treatment for Cr-Mo steel pipe[J]. Transactions of the China Welding Institution, 2006, 27(3):5-8.
    Yaghi A H, Hyde T H, Becker A A, et al. Finite element simulation of welding residual stresses in a P91 steel pipe incorporating solid-state phase transformation and post-weld heat treatment[J]. The Journal of Strain Analysis for Engineering Design. 2008, 43:275-293
    Dorfman, Abram S. Conjugate Problems in Convective Heat Transfer[M]. Boca Raton:CRC Press, 2009.
    胡磊, 王学, 孟庆云, 等. 9%Cr钢厚壁管道局部焊后热处理温度场的数值模拟[J]. 焊接学报, 2015, 36(12):13-16. Hu Lei, Wang Xue, Meng Qingyun, et al. Numerical simulation of temperature field in 9% Cr steel thick-wall pipe in local PWHT[J]. Transactions of the China Welding Institution, 2015, 36(12):13-16.
    周春亮. P92钢焊接温度场及应力场的数值模拟[D]. 天津:天津大学, 2008.
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