DN25 Corrugated Compensator Details Henan Yichang Pipeline Equipment Co., Ltd.

Anti-corrosion corrugated compensator body is made of stainless steel metal corrugated compensator, which can withstand various concentrations of acid, alkali, salt, and the pressure of stainless steel metal corrugated compensator, not afraid of collision advantages. Anticorrosion metal corrugated compensator nominal diameter is DN25-1600mm, continuous fatigue life: 1000~5000 times, pressure rating: 1.0Mpa, 1.6MPa, use temperature: ≤200°C

Destabilization phenomenon:

Anti-corrosion metal corrugated compensator elastic elements will destabilize under certain load. The instability of the metal corrugated compensator has two situations: plane instability and column instability. Plane instability refers to the warping, deformation, and uneven wave pitch of the corrugated ring plate. Column instability is the overall bending of the corrugation axis, and it is away from the original straight line position. Regardless of the type of instability, the geometrical shape of the metal corrugated compensator loses its original equilibrium state, resulting in a sudden distortion of the shape. The momentary stress of the component often does not reach the yield strength of the material. Sometimes even less than the elastic limit.

Elastic characteristics

The elastic characteristic is an important performance index of the metal bellows compensator and other elastic elements. The relationship between a given corrugated compensator and other elastic elements between a given displacement and the applied load is called elasticity, and the displacement and load should be within the elastic range of the material. Corrugated compensator grade pressure can also be based on customer demand, our technical staff can customize according to the need to lengthen or different types of corrugated compensators. The elastic characteristics of the metal bellows compensator assembly can be expressed in functional equations, tables, and graphs. Its elastic characteristics depend on the structure and loading of various types of elastic elements. The elasticity of a component can be linear or nonlinear, and nonlinearity can be divided into two categories: incremental and degressive.

Cause bending moment reason

Avoiding the damage of anti-corrosion metal corrugated compensators due to bending stress is an important part that cannot be ignored in the construction of thermal power lines . Because the heat pipelines will have different degrees of concentricity deviation or laying stress in the construction, so that the thermal pipeline in operation will have a serious deviation, resulting in the metal bellows compensator in operation by varying degrees of bending stress, affecting the metal ripple compensation The normal operation of the device will even shorten the service life of the metal bellows compensator, and it will also leave hidden dangers for the safe operation of the heat pipeline. The main reasons for the metal bellows compensator being subjected to bending moments are: large eccentricity when the pipelines are docked, and the effect that the pipeline deviates from the center of the trench or the side wall of the trench when embedding, and the yellow sand cushion is uneven or grooved during the laying of the thermal pipeline. Bottom unevenness results in greater eccentricity of the pipeline.

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