Thread Content
What are the consequences of improper installation of the guide cylinder for compensators? The main function of the guide cylinder installed with compensators is to ensure a steady flow of the fluid in the pipeline, preventing the fluid from directly impacting or eroding the bellows. However, after the guide cylinder is installed, the medium impacts it directly; if the design of the guide cylinder is unreasonable, it may result in the entire guide cylinder falling off or part of it falling off. 1. Impact detachment: Overall detachment mainly occurs when the flow velocity of the fluid in the pipeline is high and vibrations are present. In compensators equipped with guide cylinders, the sudden reduction in the cross-sectional area at the flow-through end causes an increase in the flow velocity of the medium. This exerts intense stress on the welds at the fixed ends of the guide cylinders; when the strength of these welds is insufficient or stress concentration occurs, the welds fail, and the entire guide cylinder gets blown off. Partial detachment mainly occurs when the material of the guide cylinder is stainless steel and its thickness is relatively low (1-2 MM). Due to the poor toughness of this material, the movable end of the guide cylinder is severely affected by air currents, resulting in high-frequency vibrations that ultimately lead to tearing and partial detachment. 2. Deformation due to high-frequency vibrations When the compensator serves primarily as a vibration isolation device, pipes subjected to high-frequency vibrations can cause the guide cylinder, which is welded at one end and free at the other, to experience high-frequency vibrations as well. When the amplitude is large and the frequency is high, the material suffers from fatigue failure, resulting in deformation and rupture of the guide cylinder. Sometimes, the guide tube vibrates into an oval shape, causing a change in the gap between the guide tube and the bellows, which affects the proper operation of the compensator.