Precautions for construction and installation of bellows exp

Writer： admin Time：2021-09-08 21:59 Browse：℃

Precautions for the construction and installation of telescopic welded bellows bellows expansion joints
1. Pre-deformation of bellows expansion joints Generally, the quality and pre-deformation of bellows expansion joints will be systematically monitored and monitored by relevant inspectors before they are produced and shipped. Analysis to ensure the service life and safety factor of expansion joints. However, the manufacturer's pre-deformation detection only stays on the expansion joint to absorb the axial displacement, which has certain one-sidedness and limitations, and cannot fully reflect the overall pre-deformation amount. In this regard, technicians need to clarify the type of expansion joints and the pre-deformation detection requirements of this type of product before the formal installation, and conduct a secondary inspection of the expansion joints that need to be tested by cold drawing to understand the absorption of lateral displacement and angular displacement. The actual situation lays a solid foundation for the subsequent installation work.
2. Reasonable pre-tensioning and compression technicians should conduct an in-depth analysis of the installation environment before installing the bellows expansion joint, observe the changes in the surrounding temperature and humidity, and grasp the real and effective first-hand information. Then, based on this, scientifically and effectively pre-stretch the bellows expansion joints that need to be installed to ensure its safety and stability to a certain extent, so that it can exert its due effect in the heat transmission process.
3. To ensure the quality of installation, technical personnel must put safety and quality in the first place during installation operations, improve installation efficiency under the premise of ensuring quality, strictly follow related technical operation procedures, and do not change or add or subtract operations at will due to temporary convenience Steps, pay attention to the standardization and rationalization of the installation, and must not bend the bellows expansion joint forcibly to make it cater to the trend of the heating pipeline, so as to avoid leaving hidden dangers for safe operation.