Tips for choosing the model of the disc-welded vacuum bellow

Writer： admin Time：2021-09-08 22:09 Browse：℃

Disc-welded vacuum bellows bellows expansion joint model selection skills
1. Classification of bellows expansion joints Normally, the bellows expansion joints sold on the market can be roughly divided into two categories, one is the constrained expansion joint. The more common ones are hinge type expansion joints, large tie rod transverse type expansion joints, etc., which are relatively simple in structure. The bellows pipe system does not need to add any fixed brackets to obtain a higher load-bearing effect of the blind plate; the second is the non-constrained type Expansion joints require a fixed bracket to be erected on the piping system to support the axial force. Common types are universal expansion joints and axial expansion joints.
2. The selection principle of the type of bellows expansion joint. During the process of selecting the type of bellows expansion joint, technicians should contact the actual construction of the pipeline to match it with the type of thermal pipeline. When selecting a model, it is necessary to subdivide and simplify complex pipelines into typical pipe sections of expansion pipelines, "break them into parts", and split them into different "one-shaped", "L-shaped" or "Z-shaped" The shape of the pipeline is convenient for later construction and management. After the disassembly is completed, the technician should set up a good expansion joint model according to relevant conditions and actual needs, and select the supporting guide bracket based on its expansion and deformation trajectory. In addition, technicians must find out specific parameters such as the blind plate force and fatigue life of the bellows expansion joint to determine the number of brackets and the fixed position.