Reasons for leakage of bellows compensator

Leakage of the bellows compensator in the pipeline is mostly caused by improper construction and installation, causing the pipeline to deviate from the designed position during operation. Due to the inconsistent pressure resistance of the pipeline foundation, when uneven dynamic or static loads occur on the ground above the pipeline, the pipeline sinks unevenly, causing the corrugated compensator to leak. Therefore, the distortion of the pipeline compensator is the root cause of the leakage of the corrugated compensator.

The compressive strength of the original soil or backfill soil under the fixed bearing foundation is inconsistent with that of the side backfill soil. Dynamic or static loads on the ground above the fixed bearing will cause the fixed bearing to deflect. The torque generated by this deflection is transmitted to the Pipe compensator, causing the pipe compensator to leak. To meet the requirement of large installation length, multiple directly buried insulation pipes need to be welded together. In fact, this is a broken line pipe.

A bellows compensator is a compensation component. It utilizes the effective expansion and contraction deformation of the corrugated pipe of its working body to absorb the dimensional changes of pipelines, conduits, containers, etc. caused by thermal expansion and contraction, or to compensate for the axial, lateral and angular displacement of pipelines, conduits, containers, etc. It can also be used to reduce noise and vibration. It is widely used in modern industry.

Bellows compensator is also customarily called expansion joint or expansion joint. It is composed of bellows (an elastic element) that constitutes its working body and accessories such as end tubes, brackets, flanges, and conduits. Mainly used in various pipelines, it can compensate for the thermal displacement, mechanical deformation and absorb various mechanical vibrations of the pipeline, thereby reducing the deformation stress of the pipeline and increasing the service life of the pipeline.

The working principle of the bellows compensator is to use its own elasticity to compensate for the axial, angular, lateral and combined displacement of the pipe caused by thermal deformation, mechanical deformation and various mechanical vibrations. It has pressure resistance, sealing, corrosion resistance, temperature resistance, impact resistance, vibration and noise reduction, reduces pipeline deformation, and improves the service life of the pipeline.

① Good corrosion resistance: Good high temperature resistance and corrosion resistance: The selected fluoroplastic and organic silicon materials have good high temperature resistance and corrosion resistance.

② Good sealing performance: With a relatively complete assembly system, the bellows compensator can have no leakage.

③ Lightweight, simple structure, easy to install and maintain.

④ Compensation for thermal expansion: It can compensate in multiple directions, which is better than metal compensators that can only compensate in one direction.

⑤ Compensation for installation errors: Since system errors are inevitable during the pipeline connection process, the bellows compensator can better compensate for the installation errors.

⑥ Noise reduction and vibration reduction: The fiber fabric and thermal insulation cotton body itself have the functions of sound absorption and vibration isolation, which can effectively reduce the noise and vibration of boilers, fans and other systems.