Year1
- 口径：
- DN600
- 压力：
- 1.6mpa
- 补偿量：
- 160mm
Bellows compensator, also known as telescopic joint and expansion joint, is mainly used to ensure the safe operation of pipelines. It is a flexible, thin-walled, transversely corrugated device with telescopic function. The main elastic element is stainless steel bellows. Rely on the expansion, contraction and bending of the bellows to compensate for the forward, transverse and angular direction of the pipe. Its function can
compensate and absorb the axial, transverse and angular thermal deformation of the pipeline.
.Absorb equipment vibration and reduce the impact of equipment vibration on pipelines.
.Absorb the deformation of pipelines caused by earthquakes and ground subsidence.
The bellows compensator is composed of metal bellows and components. The working principle of the bellows compensator is to use its own elastic expansion and contraction function to compensate for the axial, angular, lateral and combined displacements of the pipeline caused by thermal deformation, mechanical deformation and various mechanical vibrations. The compensation function is resistant to It has the functions of pressure, sealing, corrosion resistance, temperature resistance, impact resistance, vibration and noise reduction, which can reduce pipeline deformation and increase pipeline service life.
The advantage of the corrugated pipe compensator is that it adopts an advanced overall one-time hydroforming process that does not damage the corrugated pipe. The product features are high dimensional accuracy, long service life, reliable performance, compact structure, large compensation, long fatigue life, high pressure bearing capacity, wide range of materials, and in engineering applications, it has the characteristics of simple piping and no need for maintenance, large diameter, High temperature resistance and strong resistance to stress corrosion. But it also has shortcomings that are difficult to solve. For example, the axial corrugated compensator produces pressure thrust on the fixed bracket, resulting in a large thrust of the fixed bracket, resulting in high cost. In addition, the corrugated compensator pipe wall is thin and cannot withstand torsion and vibration, resulting in poor safety and high equipment investment. There are a series of shortcomings such as strict design requirements, high construction and installation accuracy, and often short of expected lifespan.
Under normal circumstances, the material used for metal bellows compensator should meet the following conditions
) High elastic limit, tensile strength and fatigue strength to ensure that the bellows works.
) Good plasticity to facilitate compensator molding and processing, and to obtain sufficient hardness and strength through subsequent processing (work hardening, heat treatment, etc.).
) Good corrosion resistance to meet the requirements of bellows working in different environments.
) Good welding performance to meet the welding process requirements during the production of bellows.
Application of bellows compensator
Pipes with large deformation and limited spatial position.
, large diameter pipes with large deformation and displacement and low working pressure.
, It is necessary to limit the equipment that takes over the load.
, pipes required to absorb or isolate high-frequency mechanical vibrations.
, pipes required to absorb earthquakes or foundation settlement.
, Absorb the vibration at the pipeline pump outlet.
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Liu Xiaofei
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