Analysis of Cracking Reasons of the Second Quench Heat Exchanger Cylinder
The second quench heat exchanger is the core equipment of the ethylene plant of a petrochemical company.There was a sudden leak in the heat exchanger in May 2018, causing the equipment to stop.Through the inspection it was found that the leakage mainly occurred in the first barrel section of the hea...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Materials Protection
2021-01-01
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| Series: | Cailiao Baohu |
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| Online Access: | http://www.mat-pro.com/fileup/1001-1560/PDF/202100132.pdf |
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| author | ZHANG Sheng-nan, ZHAO Wen-bin, TONG Ai-qun, LU Zhong-hai |
| author_facet | ZHANG Sheng-nan, ZHAO Wen-bin, TONG Ai-qun, LU Zhong-hai |
| author_sort | ZHANG Sheng-nan, ZHAO Wen-bin, TONG Ai-qun, LU Zhong-hai |
| collection | DOAJ |
| description | The second quench heat exchanger is the core equipment of the ethylene plant of a petrochemical company.There was a sudden leak in the heat exchanger in May 2018, causing the equipment to stop.Through the inspection it was found that the leakage mainly occurred in the first barrel section of the heat exchanger shell near the upper tube plate.There was a penetrating crack in the failure position of the cylinder, and the crack was completely cracked along the direction of thickness.For this, the original manufacturing data of the equipment were reviewed, and the stress analysis, macroscopic examination and sampling analysis of the cracking phenomenon of the cylinder of the heat exchanger were carried out.Results showed that alkali stress corrosion was the fundamental cause of heat exchanger cylinder failure and cracking, meanwhile the corresponding preventive measures were put forward. |
| format | Article |
| id | doaj-art-8cc570ce2fc042b0b7e35e2e826933d7 |
| institution | Kabale University |
| issn | 1001-1560 |
| language | zho |
| publishDate | 2021-01-01 |
| publisher | Editorial Department of Materials Protection |
| record_format | Article |
| series | Cailiao Baohu |
| spelling | doaj-art-8cc570ce2fc042b0b7e35e2e826933d72025-08-20T03:28:48ZzhoEditorial Department of Materials ProtectionCailiao Baohu1001-15602021-01-0154118719210.16577/j.cnki.42-1215/tb.2021.01.032Analysis of Cracking Reasons of the Second Quench Heat Exchanger CylinderZHANG Sheng-nan, ZHAO Wen-bin, TONG Ai-qun, LU Zhong-hai0(1.Department of Mechanical Engineering, Petrochemical and Occupation College of Lanzhou, Lanzhou 730060, China;2.Petrochina Lanzhou Petrochemical Company, Lanzhou 730060, China)The second quench heat exchanger is the core equipment of the ethylene plant of a petrochemical company.There was a sudden leak in the heat exchanger in May 2018, causing the equipment to stop.Through the inspection it was found that the leakage mainly occurred in the first barrel section of the heat exchanger shell near the upper tube plate.There was a penetrating crack in the failure position of the cylinder, and the crack was completely cracked along the direction of thickness.For this, the original manufacturing data of the equipment were reviewed, and the stress analysis, macroscopic examination and sampling analysis of the cracking phenomenon of the cylinder of the heat exchanger were carried out.Results showed that alkali stress corrosion was the fundamental cause of heat exchanger cylinder failure and cracking, meanwhile the corresponding preventive measures were put forward.http://www.mat-pro.com/fileup/1001-1560/PDF/202100132.pdfsecond quench heat exchanger; cracking; corrosion; alkali stress |
| spellingShingle | ZHANG Sheng-nan, ZHAO Wen-bin, TONG Ai-qun, LU Zhong-hai Analysis of Cracking Reasons of the Second Quench Heat Exchanger Cylinder Cailiao Baohu second quench heat exchanger; cracking; corrosion; alkali stress |
| title | Analysis of Cracking Reasons of the Second Quench Heat Exchanger Cylinder |
| title_full | Analysis of Cracking Reasons of the Second Quench Heat Exchanger Cylinder |
| title_fullStr | Analysis of Cracking Reasons of the Second Quench Heat Exchanger Cylinder |
| title_full_unstemmed | Analysis of Cracking Reasons of the Second Quench Heat Exchanger Cylinder |
| title_short | Analysis of Cracking Reasons of the Second Quench Heat Exchanger Cylinder |
| title_sort | analysis of cracking reasons of the second quench heat exchanger cylinder |
| topic | second quench heat exchanger; cracking; corrosion; alkali stress |
| url | http://www.mat-pro.com/fileup/1001-1560/PDF/202100132.pdf |
| work_keys_str_mv | AT zhangshengnanzhaowenbintongaiqunluzhonghai analysisofcrackingreasonsofthesecondquenchheatexchangercylinder |