Analysis of the cause of the problem when the corrugated compensator

Analysis of the cause of the problem when the corrugated compensator
The corrugated compensator produces problems when the cause of the analysis of the corrugated compensator work body for the bellows, through the effective expansion and contraction deformation of the bellows can compensate for axial, lateral and angular displacement. Users in the purchase of the corrugated compensator, corrugated compensator manufacturer in the design of the corrugated compensator in addition to consider the pressure strength, stability and fatigue times, but also take into account the instability of the bellows. So what does the instability of the corrugated compensator refer to?
Bellows compensator instability said _ is the bellows part can not be normal expansion, the formation of irregular corrugation chaos, bending. The main reasons for its instability are the length of the bellows is too long, the compensation amount of the bellows compensator design is high, due to the bending device is too tight does not play a role in bending. Corrugated compensator in the bellows of the wave height, wave distance problems are also the cause of bellows instability. For larger diameter and higher internal pressure of the corrugated compensator, plane instability _ pressure is often the control factor for the selection of bellows parameters, calculate and select the anti-stability performance _ of the bellows parameters is the key to design. When this time still can not meet the stability requirements, _ to take other measures to avoid instability of the corrugated compensator, such as increasing the wall thickness, the use of u-shaped bellows with reinforced ring, select the material with high permissible stress, etc. For pipe systems with low internal pressure and high thermal displacement, column yield instability and fatigue design may become critical factors affecting bellows calculations. Appropriately increase the wave height and reduce the wall thickness of the bellows will increase the displacement allowed by a single wave, reduce the total number of waves of the corrugated compensator, favorable instability problem solving. Increase the number of waves of the corrugated compensator, can reduce the fatigue stress, but reduces the column yield instability _ pressure, while this is not beneficial to the plane instability.