Bellows expansion joint is used for heat up and cold shrinkage and other factors resulting in the change of pipeline or machinery and equipment specifications, but also contemporary encounter heat pipeline network and facilities to carry out compensation of one of the core components.
It is often of special interest to employees of engineering projects, mainly because of its increasingly common use: aerospace, crude oil, chemical plants, metallurgical industry, heat supply, water conservancy projects, power engineering, nuclear energy and other units, even electric locomotives, ships and other traffic control departments and multi-storey buildings. The compensator can not only compensate the pipeline offset, but also has the effect of shock and noise reduction, good confinement, so that the middle of the pipeline and pipeline and machinery and equipment to maintain a flexible connection. At the same time, it is a more unique force-bearing structure, in the use of the provisions of the higher pressure resistance to work, but also to have excellent flexibility, which is actually a pair of differences, in addition, should have a certain degree of stability and fatigue life. Therefore, the compensator in the design scheme, selection of materials, manufacturing, experiments and other levels can not be equivalent to the general vessel and pipe bending stiffness structure, which itself has richness and diversity, in the design scheme need to follow certain standards and norms.
