The rotary compensator is a new type of compensator for thermal expansion in thermal pipelines. Its structure mainly consists of components such as an integral sealing base, sealing cover, reducing-end pipe, friction-reducing locating bearing, sealing material, and rotating cylinder. It requires two or more sets to be assembled for installation on thermal pipelines, forming a relative rotation to absorb the thermal displacement of the pipeline, thereby reducing pipeline stress.
Advantages of the rotary compensator:
(1) Large compensation volume, adaptable to natural terrain and pipeline strength; a set of large compensator can compensate for 800 meters of pipeline.
(2) No blind flange force generated from medium pressure, the fixed bracket can be made very small, especially suitable for large diameter pipelines.
(3) Superior sealing performance, requiring no maintenance for long-term operation.
(4) Significant cost savings on investment;
(5) Easy design calculations
(6) Rotational compensators can be installed on steam and hot water buried pipelines, significantly saving investment and enhancing operational safety.
Swivel compensators are typically installed in sets of 150-500m on pipelines (can be determined based on natural terrain), with over ten different installation options, which can be determined according to the pipeline's direction. After using this type of compensator, the spacing between fixed supports is increased, and guide supports should be appropriately added to avoid pipeline deflection. To reduce the friction resistance during pipeline operation, rolling supports should be installed on the sliding supports.