Journal of Energy and Natural Resources

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Stress Analysis of Large Diameter Pipe Interface Structure of Boiler Main Steam Pipe

Received: Mar. 17, 2023    Accepted: May 06, 2023    Published: May 18, 2023
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Abstract

The “four tubes” safety of the boiler is related to the economic and safe operation of the boiler. In order to ensure the safety of boiler steam pipe large diameter nozzle welding place, the structural stress analysis of the special large-aperture nozzle pipeline designed in a boiler enterprise's design process is studied in this paper. In the case, the allowable angle of the pipeline exceeds the direct calculation range of JB4732-1995, therefore, the ANSYS finite element analysis method is used to calculate the structural stress of the pipeline, and the stress evaluation is carried out. The results show that the finite element method can effectively calculate the pipeline structure's stress calculation. In order to meet the requirements of JB 4732-1995 for the evaluation of various types of stress intensity step by step, the film bending stress is treated as SIII, and the conservative treatment is controlled by 1.5Sm, therefore, the finite element analysis results of the pipeline show that the maximum equivalent stress is 176.22 MPa, which is located at the connection between the large nozzle and the main pipe, and the larger the diameter of the pipe nozzle, the higher the equivalent stress. The stress evaluation results of the pipeline are evaluated according to the third stress intensity, and the strength of the analyzed parts meets the standard requirements.

DOI 10.11648/j.jenr.20231201.11
Published in Journal of Energy and Natural Resources ( Volume 12, Issue 1, March 2023 )
Page(s) 1-6
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Large Aperture Takeover, Finite Element Method, Stress Analysis, Stress Evaluation

References
[1] Bian Xiaoke. Failure analysis and life prediction of main steam pipelines [J]. Building materials and decoration, 2016, No. 419 (15): 165-6. (in Chinese)
[2] Wei Shengjun, Li Fufu, Qi Chang. Crack problems and prevention in inspection of boilers, pressure vessels and pressure pipelines [J]. Science and information technology, 2023, (2): 16-8. (in Chinese)
[3] Salifu S, Desai D, Kok S. Influence of Diverse Operating Cycles on the Useful Creep Life of P92 Steam Piping [J]. Journal of Failure Analysis and Prevention, 2021, 21 (3): 983-92.
[4] Murakami K, Komazaki S-I, Mitsueda T. Creep Remaining-Life Assessment of 2.25Cr-1Mo Steel Hot Reheat Steam Piping by Small Punch Test [J]. Tetsu-to-Hagane, 2022, 108 (1): 88-96.
[5] Chen Xingyang, Zhou Yang, Song Junjun, et al. Remaining Life Assessment of Main Steam Piping in Long-term High Temperature Service Power Plant [J]. Physical and Chemical Inspection-Physical Volume, 2023, 59 (01): 13-5+38. (in Chinese)
[6] SToresund J, Andersson D, Rantala J, et al. Creep analysis of a main steam pipe system [J]. Materials at High Temperatures, 2022, 39 (6): 678-88.
[7] GRIN’ E A, STEPANOV V V, SARKISYAN V A, et al. Method for evaluating the technical state of boilers and piping in thermal power plants [J]. Power Technology and Engineering, 2012, 45 (5): 369-75.
[8] Choi W, Han J. Health-Monitoring Methodology for High-Temperature Steam Pipes of Power Plants Using Real-Time Displacement Data [J]. Applied Sciences, 2021, 11 (5).
[9] Pástor M, Lengvarský P, TREBUŇA F, et al. Prediction of failures in steam boiler using quantification of residual stresses [J]. Engineering Failure Analysis, 2020, 118.
[10] Qi Haifeng. Causes and prevention of cracks in boiler main steam pipeline [J]. Labor protection, 2021, (8): 80-1. (in Chinese)
[11] Liu Cong, Shen Liang, Lu He. Steam pipe stress calculation and support selection of 220t / h boiler [J]. Power plant system engineering, 2021, 37 (04): 47-8 + 50. (in Chinese)
[12] Lyu Y, Lian w, Sun z, et al. Failure Analysis of Abnormal Bulging and Cracking for High-Pressure Steam Pipe [J]. Journal of Materials Engineering and Performance, 2022, 31 (9): 7277-89.
[13] JB4732-1995, Steel Pressure Vessels, Design by Analysis, 2005. (in Chinese)
[14] GB 150.3-2011, Pressure Vessel Part 3: Design. (in Chinese)
[15] GB/T 16507-2022, Water Pipe Boiler. (in Chinese)
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  • APA Style

    Chen Ye, Zheng Nenghong, Yang Rui, Xia Fengbing, Liu Tao, et al. (2023). Stress Analysis of Large Diameter Pipe Interface Structure of Boiler Main Steam Pipe. Journal of Energy and Natural Resources, 12(1), 1-6. https://doi.org/10.11648/j.jenr.20231201.11

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    ACS Style

    Chen Ye; Zheng Nenghong; Yang Rui; Xia Fengbing; Liu Tao, et al. Stress Analysis of Large Diameter Pipe Interface Structure of Boiler Main Steam Pipe. J. Energy Nat. Resour. 2023, 12(1), 1-6. doi: 10.11648/j.jenr.20231201.11

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    AMA Style

    Chen Ye, Zheng Nenghong, Yang Rui, Xia Fengbing, Liu Tao, et al. Stress Analysis of Large Diameter Pipe Interface Structure of Boiler Main Steam Pipe. J Energy Nat Resour. 2023;12(1):1-6. doi: 10.11648/j.jenr.20231201.11

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  • @article{10.11648/j.jenr.20231201.11,
      author = {Chen Ye and Zheng Nenghong and Yang Rui and Xia Fengbing and Liu Tao and Huang Renjie and Chai Lijun},
      title = {Stress Analysis of Large Diameter Pipe Interface Structure of Boiler Main Steam Pipe},
      journal = {Journal of Energy and Natural Resources},
      volume = {12},
      number = {1},
      pages = {1-6},
      doi = {10.11648/j.jenr.20231201.11},
      url = {https://doi.org/10.11648/j.jenr.20231201.11},
      eprint = {https://download.sciencepg.com/pdf/10.11648.j.jenr.20231201.11},
      abstract = {The “four tubes” safety of the boiler is related to the economic and safe operation of the boiler. In order to ensure the safety of boiler steam pipe large diameter nozzle welding place, the structural stress analysis of the special large-aperture nozzle pipeline designed in a boiler enterprise's design process is studied in this paper. In the case, the allowable angle of the pipeline exceeds the direct calculation range of JB4732-1995, therefore, the ANSYS finite element analysis method is used to calculate the structural stress of the pipeline, and the stress evaluation is carried out. The results show that the finite element method can effectively calculate the pipeline structure's stress calculation. In order to meet the requirements of JB 4732-1995 for the evaluation of various types of stress intensity step by step, the film bending stress is treated as SIII, and the conservative treatment is controlled by 1.5Sm, therefore, the finite element analysis results of the pipeline show that the maximum equivalent stress is 176.22 MPa, which is located at the connection between the large nozzle and the main pipe, and the larger the diameter of the pipe nozzle, the higher the equivalent stress. The stress evaluation results of the pipeline are evaluated according to the third stress intensity, and the strength of the analyzed parts meets the standard requirements.},
     year = {2023}
    }
    

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  • TY  - JOUR
    T1  - Stress Analysis of Large Diameter Pipe Interface Structure of Boiler Main Steam Pipe
    AU  - Chen Ye
    AU  - Zheng Nenghong
    AU  - Yang Rui
    AU  - Xia Fengbing
    AU  - Liu Tao
    AU  - Huang Renjie
    AU  - Chai Lijun
    Y1  - 2023/05/18
    PY  - 2023
    N1  - https://doi.org/10.11648/j.jenr.20231201.11
    DO  - 10.11648/j.jenr.20231201.11
    T2  - Journal of Energy and Natural Resources
    JF  - Journal of Energy and Natural Resources
    JO  - Journal of Energy and Natural Resources
    SP  - 1
    EP  - 6
    PB  - Science Publishing Group
    SN  - 2330-7404
    UR  - https://doi.org/10.11648/j.jenr.20231201.11
    AB  - The “four tubes” safety of the boiler is related to the economic and safe operation of the boiler. In order to ensure the safety of boiler steam pipe large diameter nozzle welding place, the structural stress analysis of the special large-aperture nozzle pipeline designed in a boiler enterprise's design process is studied in this paper. In the case, the allowable angle of the pipeline exceeds the direct calculation range of JB4732-1995, therefore, the ANSYS finite element analysis method is used to calculate the structural stress of the pipeline, and the stress evaluation is carried out. The results show that the finite element method can effectively calculate the pipeline structure's stress calculation. In order to meet the requirements of JB 4732-1995 for the evaluation of various types of stress intensity step by step, the film bending stress is treated as SIII, and the conservative treatment is controlled by 1.5Sm, therefore, the finite element analysis results of the pipeline show that the maximum equivalent stress is 176.22 MPa, which is located at the connection between the large nozzle and the main pipe, and the larger the diameter of the pipe nozzle, the higher the equivalent stress. The stress evaluation results of the pipeline are evaluated according to the third stress intensity, and the strength of the analyzed parts meets the standard requirements.
    VL  - 12
    IS  - 1
    ER  - 

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Author Information
  • College of Mechanical Engineering, Sichuan University of Science and Engineering, Yibing, People’s Republic of China

  • College of Mechanical Engineering, Sichuan University of Science and Engineering, Yibing, People’s Republic of China

  • College of Mechanical Engineering, Sichuan University of Science and Engineering, Yibing, People’s Republic of China

  • College of Mechanical Engineering, Sichuan University of Science and Engineering, Yibing, People’s Republic of China

  • College of Mechanical Engineering, Sichuan University of Science and Engineering, Yibing, People’s Republic of China

  • College of Mechanical Engineering, Sichuan University of Science and Engineering, Yibing, People’s Republic of China

  • College of Mechanical Engineering, Sichuan University of Science and Engineering, Yibing, People’s Republic of China

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