Sleeve compensator introduction and customization considerations
Sleeve compensator introduction and customization considerations
There are two sealing methods of sleeve compensator, packing seal and mechanical seal. Packing seal as a contact sealing method, by adding elastic sealing material between the outer casing and the inner core tube. The packing will be subjected to axial force and then pressed evenly to the surface of the core tube, and through its own elastic deformation to ensure compensation for the wear of the sealing surface, while preventing leakage. The decisive role is played by the physical properties of the packing - elasticity and plasticity, while the radial force (py) generated in the depth direction of the packing is different from the axial force px to which he is subjected. Where μ is the filler Poisson's ratio (that is, the transverse deformation coefficient, the ratio of transverse deformation and longitudinal deformation) which can also be replaced by k (lateral pressure coefficient) According to this feature, the filler is changed from a single soft or hard filler to a combination of filler. For example, hard filler is in a deeper place and soft filler is a little bit outside.
Some notes on customization:
Although the product is a small piece, but the overall structure (thread, bevel, etc.) is contained in numerous sizes, which size data is not accurate will cause problems in the subsequent use or installation, so if there is disassembly samples should try to provide samples, so as to ensure that the customized buckling joint can be adapted to the original pipeline use.
The inner sleeve of the sleeve compensator is connected to the pipeline with the principle and structure of high performance self-pressure dynamic seal, which can slide freely inside the shell with the expansion and contraction of the pipeline, and can adapt to the sealing requirements of any pipeline. The new synthetic material is used to seal between the shell and the inner sleeve, which can resist high temperature, corrosion and aging, and is applicable to temperatures from -40 to 150, and up to 350 in special cases, ensuring both axial sliding and no leakage of the medium inside the pipe. The sleeve compensator is designed with anti-pull-off device, which can ensure that it will not be pulled off when it expands and contracts to the limit position, thus making the safety of the whole pipe network operation greatly improved. In the pipeline industry sleeve compensator is widely popular. The sliding surface of the sleeve compensator is specially treated and generally has good corrosion resistance in environments such as salt water and salt solutions, even more than 50 times higher than stainless steel. At the same time, after many years, when the sealing effect is weakened due to wear and tear, the flange can be tightened again to enhance the sealing performance, or the bolt can be loosened, the pressure ring can be removed, and then a layer or two sealing rings can be installed, and the pressure ring can be tightened to continue to use.
