Metal Compensator for Gas Pipeline
is also known as , or bellows expansion joint. The utility model is composed of a bellows (an elastic element) constituting the main body of the bellows and accessories such as an end pipe, a bracket, a flange, a conduit, etc. The utility model belongs to a compensation element. The effective expansion deformation of bellows is used to absorb the size changes of pipelines, conduits and containers caused by thermal expansion and cold contraction, or to compensate the axial, transverse and angular displacements of pipelines, conduits and containers. It can also be used for noise reduction and vibration reduction. It is widely used in modern industry. In heating, in order to prevent pipeline deformation or damage caused by thermal elongation or thermal stress during heating, compensators need to be installed on the pipeline to compensate the thermal elongation of the pipeline, thereby reducing the stress of the pipe wall and the force acting on the valve or support structure.
Advantages of the :
The utility model has the advantages of compact structure, less space occupation and direct burying; the disadvantage is that the manufacturing is difficult, the pressure resistance is low, and the compensation ability is small. The compensation capacity is related to the outer dimensions, wall thickness and diameter of the corrugated tube: the higher the pressure, the thicker the wall, the smaller the diameter, the greater the rigidity, and the smaller the compensation capacity. Waveform compensator is generally used for applications where the nominal pressure is ≤1.0MPa and the nominal diameter is ≥150mm. It can also be used for large diameter pipes with normal pressure and low pressure. It can be used in boiler flue gas ducts up to DN4000mm.
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