Possible causes of conduits fracture

      Compared with the ordinary pressure vessel, the working condition of conduits is worse. In addition to the working temperature, pressure and medium, the conduits will produce larger deformation. The displacement of the pipe is provided by the deformation of the conduits. The displacement causes the conduits to produce high axial stress and bending stress, so that the cracks are mainly transverse cracks, and there are some oblique cracks with a certain angle to the transverse cracks. In many cases, the conduits will also be subject to mechanical vibration and the vibration caused by the flow of medium in the pipeline. At the same time, the dead weight of the pipeline, medium and insulation material will cause the bellows to produce a certain bending moment, so the stress state of the conduits in the work is very complex.

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