Analysis of abnormal expansion of pipe system and optimization of structural stress in 350MW unit
A 350MW power plant main steam and reheat hot steam pipe subsidence occurred in part of the pipe section, through field inspection, calculation and checking analysis, combined with pipeline support and hanger adjustment, load testing and elevation measurement and other means, the settlement of the p...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2021-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/37/e3sconf_icemee2021_02073.pdf |
| _version_ | 1818727382170730496 |
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| author | Liu Xin Zhang Yanming Liu Qun Sun Xu Wang Yu Zhao Liye |
| author_facet | Liu Xin Zhang Yanming Liu Qun Sun Xu Wang Yu Zhao Liye |
| author_sort | Liu Xin |
| collection | DOAJ |
| description | A 350MW power plant main steam and reheat hot steam pipe subsidence occurred in part of the pipe section, through field inspection, calculation and checking analysis, combined with pipeline support and hanger adjustment, load testing and elevation measurement and other means, the settlement of the pipe system to optimize the overall stress state of the pipe system. Through the thermal displacement of the pipe system support lifting point, the selection and calculation of the pipe system support hanger and the overall design state stress check of the pipe system, the design state is basically consistent with the check state. Through to the key node load tests have shown that small spring hanger selection is the primary cause of section settling, combined with the spring adjustment space and calculation results are part of the hanger. Finally, the settlement of pipeline is realized, main steam pipe at the same time a stress and secondary stress were achieved about 15% of the decline, piping stress has been further optimized. |
| first_indexed | 2024-12-17T22:13:12Z |
| format | Article |
| id | doaj.art-022cb58daf304d95a6541f5096a812df |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-17T22:13:12Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-022cb58daf304d95a6541f5096a812df2022-12-21T21:30:41ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012610207310.1051/e3sconf/202126102073e3sconf_icemee2021_02073Analysis of abnormal expansion of pipe system and optimization of structural stress in 350MW unitLiu Xin0Zhang Yanming1Liu Qun2Sun Xu3Wang Yu4Zhao Liye5Datang Northeast Electric Power Test & Research InstituteDatang Northeast Electric Power Test & Research InstituteDatang Northeast Electric Power Test & Research InstituteDatang Northeast Electric Power Test & Research InstituteDatang Suihua Thermal Power Co., Ltd.Northeast Electric Power Design Institute Co., Ltd, of China Power Engineering Consulting GroupA 350MW power plant main steam and reheat hot steam pipe subsidence occurred in part of the pipe section, through field inspection, calculation and checking analysis, combined with pipeline support and hanger adjustment, load testing and elevation measurement and other means, the settlement of the pipe system to optimize the overall stress state of the pipe system. Through the thermal displacement of the pipe system support lifting point, the selection and calculation of the pipe system support hanger and the overall design state stress check of the pipe system, the design state is basically consistent with the check state. Through to the key node load tests have shown that small spring hanger selection is the primary cause of section settling, combined with the spring adjustment space and calculation results are part of the hanger. Finally, the settlement of pipeline is realized, main steam pipe at the same time a stress and secondary stress were achieved about 15% of the decline, piping stress has been further optimized.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/37/e3sconf_icemee2021_02073.pdf |
| spellingShingle | Liu Xin Zhang Yanming Liu Qun Sun Xu Wang Yu Zhao Liye Analysis of abnormal expansion of pipe system and optimization of structural stress in 350MW unit E3S Web of Conferences |
| title | Analysis of abnormal expansion of pipe system and optimization of structural stress in 350MW unit |
| title_full | Analysis of abnormal expansion of pipe system and optimization of structural stress in 350MW unit |
| title_fullStr | Analysis of abnormal expansion of pipe system and optimization of structural stress in 350MW unit |
| title_full_unstemmed | Analysis of abnormal expansion of pipe system and optimization of structural stress in 350MW unit |
| title_short | Analysis of abnormal expansion of pipe system and optimization of structural stress in 350MW unit |
| title_sort | analysis of abnormal expansion of pipe system and optimization of structural stress in 350mw unit |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/37/e3sconf_icemee2021_02073.pdf |
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