A spherical compensator is a device used in piping systems that can absorb or compensate for lateral displacement of pipes in multiple directions. It is unique in its ability to handle complex three-dimensional motions, not just simple axial or lateral displacements. The working principle of the spherical compensator mainly depends on its unique construction and motion mechanism.
The structure of the spherical compensator includes:
Spherical structural element: This is the core part of the spherical compensator, composed of two spherical shells, capable of achieving angular displacement, i.e. rotation along multiple axial directions.
Sleeve structural element: Connecting two spherical structural elements, allowing a certain degree of axial displacement while also supporting the spherical structural elements.
How it works:
The spherical compensator is able to compensate for the displacement of the pipe because its spherical structural elements can rotate relative to each other. When the pipe is displaced due to thermal expansion or contraction or other reasons, the sphere inside the spherical compensator can rotate relative to the outer housing, and the angular displacement caused by this rotation can absorb the lateral displacement of the pipe. Because the sphere can rotate in multiple directions, the spherical compensator can compensate for the displacement of the pipe in any direction.
Spherical compensators usually need to be used in pairs, and a single spherical compensator has no compensating capacity and can only be used as a gimbal joint for pipes. When two spherical compensators are paired, they can digest the thermal deformation of the pipeline by angular bending, so as to achieve the purpose of thermal compensation. In pipes without three-way displacement, the spherical compensator can take advantage of its angular bending ability to absorb the thermal expansion of the pipe.
Spherical compensator needs attention during installation and use:
anti-shedding frame: Because of the long compensation distance of the spherical compensator and the large force on the fixed bracket, the fixed bracket must be firm and reliable.
Slide support design: The pipe slide should be long enough and offset in the opposite direction of displacement during installation to prevent accidental displacement of the pipe during overtemperature operation.
Cold positioning installation: When the space allows, the non-cold positioning installation is adopted to ensure the safe operation of the spherical compensator.
Spherical compensator is widely used in construction, textile, electrical, chemical, petroleum, metallurgy and other industries, especially suitable for terrain pipe connection with large ground subsidence, complex terrain and large vibration. They can withstand a large amount of compensation, occupy little space, are convenient to install, can withstand high thermal stress, are not easy to scale, and have a long service life.