高级检索

9%Cr钢厚壁管道局部焊后热处理温度场的数值模拟

胡磊, 王学, 孟庆云, 肖德铭, 王鹏飞, 严正, 张永生

胡磊, 王学, 孟庆云, 肖德铭, 王鹏飞, 严正, 张永生. 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): 13-16,21.
引用本文: 胡磊, 王学, 孟庆云, 肖德铭, 王鹏飞, 严正, 张永生. 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): 13-16,21.
shu
HU Lei, WANG Xue, MENG Qingyun, XIAO Deming, WANG Pengfei, YAN Zheng, ZHANG Yongsheng. 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): 13-16,21.
Citation: HU Lei, WANG Xue, MENG Qingyun, XIAO Deming, WANG Pengfei, YAN Zheng, ZHANG Yongsheng. 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): 13-16,21.
shu

9%Cr钢厚壁管道局部焊后热处理温度场的数值模拟

  • 1.

    武汉大学 动力与机械学院, 武汉 430072

  • 2.

    河北沧海重工股份有限公司, 盐山 061300

  • 3.

    天津电力建设公司, 天津 300012

基金项目: 国家自然科学基金资助项目(51074113, 51374153);四川省应用基础研究计划资助项目(2013JY0123)

Numerical simulation of temperature field in 9% Cr steel thick-wall pipe in local PWHT

  • 1.

    School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China

  • 2.

    Hebei Canghai Pipe Fitting Group Co., Ltd., Yanshan 061300, China

  • 3.

    Tianjin Electric Power Construction Company, Tianjin 300012, China

摘要

    摘要
  • 摘要: 基于热源追踪法开发了一个能够根据控温点温度自动调整热输入的有限元程序. 使用该程序模拟了9%Cr钢管道的局部焊后热处理温度场分布,并进行了试验验证. 结果表明,模拟结果与试验结果吻合良好. 热处理温度场沿管道轴向呈近似抛物线状分布,沿径向呈近似线性分布. 距焊缝中心两倍壁厚范围内,管道内外壁温差均约为17~18 ℃. 按照目前国内焊后热处理规程推荐的参数进行热处理,均温区宽度能够满足要求,可以保证整个接头的热处理效果. 根据温度场分布,还确定了与管道内壁焊缝中心温度相同的外壁等效点位置,以监测热处理过程中管道内壁温度的变化.
    Abstract: A FE program which could adjust heat input automatically according to the temperature at the controlling point was developed based on the heat input tracking method. The temperature distributions of 9% Cr steel pipe in local post weld heat treatment (PWHT) was simulated by using this program. The simulation results were in good agreement with the experimental results. The temperature field distributed as a parabola at the axial direction. There existed approximate linear relationship between metal temperature and radial distance. The temperature variations between the outer wall and the inner wall was about 17~18 ℃ within the distance of two times wall thickness to the weld center. The calculated soak band width according to the local PWHT parameters recommend by current domestic standard was wide enough to meet the requirements of heat treatment. Equivalence point on the outer wall which had the same temperature as the weld center in inner wall was obtained in order to monitor the temperature variation in inner wall during PWHT.
    • HTML全文
    • 参考文献(10)
  • [1] Wang Xue, Zheng Jiangpeng, Shang Wei. Prediction of Ac1 temperature in P92 steels weld metal[J]. China Welding, 2012, 21(4): 8-14.
    [2] 汪建华, 陆 浩, 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.
    [3] 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 Lin, 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.
    [4] 姜运建, 荆洪阳, 徐连勇, 等. 焊接残余应力对 P92 钢 Ⅳ 型蠕变开裂的影响[J]. 焊接学报, 2011, 32(1): 16-20. Jiang Yunjian, Jin Hongyang, Xu Lianyong, et al. Effect of welding residual stress on type IV creep failure of P92 steel[J]. Transactions of the China Welding Institution, 2011, 32(1): 16-20.
    [5] 徐连勇, 荆洪阳, 周春亮, 等. 焊后热处理对 P92 钢管道焊接残余应力场的影响[J]. 焊接学报, 2010, 31(3): 13-16. Xu Lianyong, Jin Hongyang, Zhou Chunliang, et al. Influence of heat treatment on residual stress of P92 steel pipe girth weld[J]. Transactions of the China Welding Institution, 2010, 31(3): 13-16.
    [6] 张建强, 章应霖, 蒙玉琼. P92厚壁管道PWHT温度场数值模拟[C]// 2008年火电机组建设质量控制技术论坛论文集, 满洲里, 2008: 395-399.
    [7] Li Peilin, Fan Ruizhi, Lu Hao. Temperature field analysis of main steam pipe under local post weld heat treatment[J]. China Welding, 2010, 19(4): 20-24.
    [8] 杨 富. 新型耐热钢焊接[M]. 北京: 中国电力出版社, 2006.
    [9] 颜庆津. 数值分析[M]. 3版. 北京: 北京航空航天大学出版社, 2006.
    [10] 周烨斌, 王洪晖. 大口径厚壁P92管道不同形式现场热处理的比较及讨论[J]. 焊接技术, 2011(s1): 8-13. Zhou Yebin, Wang Honghui. Comparison and discussion of different types of field heat treatment for large diameter and thick wall P92 pipe[J]. Welding Technology, 2011(s1): 8-13.
    • 相关文章
    • 施引文献
    • 资源附件(0)
计量
  • 文章访问数:  528
  • HTML全文浏览量:  1
  • PDF下载量:  228
  • 被引次数: 0
出版历程
  • 收稿日期:  2014-03-05

目录

摘要
HTML全文
    参考文献(10)
    相关文章
    施引文献
    资源附件(0)

    /

    返回文章
    返回

    网站版权 © 焊接杂志社焊接学报编辑部电话：0451-86323218地址：哈尔滨市松北区创新路2077号

    本系统由 北京仁和汇智信息技术有限公司 开发  百度统计