Cause Analysis of Weld Crack of Pressure Vessel Attached to Gas Injection Compressor
| Autor: | Xunji Li, Zifeng Yan, Wei Xing, Daoyong Gong, Yajun Li, Houde Su, Fushan Wang, Yufu Zhang |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Heat-affected zone
Materials science Nozzle 0211 other engineering and technologies 02 engineering and technology Welding Finite element method Pressure vessel law.invention Vibration Stress (mechanics) 020303 mechanical engineering & transports 0203 mechanical engineering law 021105 building & construction Composite material Gas compressor |
| Zdroj: | DEStech Transactions on Materials Science and Engineering. |
| ISSN: | 2572-889X |
| DOI: | 10.12783/dtmse/ameme2020/35565 |
| Popis: | Through the technical analysis of many cracks and leaks occurred in the pressure vessel attached to the gas injection compressor during its long service period at high pressure, the chemical analysis, metallographic analysis, hardness measurement, finite element analysis and vibration monitoring of the three-stage outlet spherical tank were carried out. Finally, it is determined that the causes of the defects are the high hardness and stress values of the weld seam and heat affected zone of the nozzle, and the mechanical fatigue caused by the alternating load caused by the vibration of the unit. |
| Databáze: | OpenAIRE |
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