Before assembly, the model and size of the corrugated expansion joint and the rubber bearing configuration of the pipe should be checked to ensure they meet the design requirements. For the compensator with a lining cylinder, special attention should be paid to making the position of the lining cylinder consistent with the material flow direction (assemble according to the inflow mark of the compensator. The door hinge rotation plan of the plane angular compensator should be consistent with the offset plan Consistent. For "cold-tightened" compensators, the commonly used auxiliary prefabricated components should be disassembled after the pre-deformation of the compensator.
The compensator should be disassembled immediately after assembly to serve as an auxiliary positioning mechanism for assembly, transportation and maintenance. Standard parts, and adjust the positioning equipment to the specified position according to the design needs, so that the pipeline is fully compensated for the environmental conditions, except for the pre-tensioning or "cold-tightening" pre-deformation specified in the design, the use of metal corrugations is prohibited. The pipe deformation method is used to adjust the assembly error of the pipe, so as not to affect the normal function of the expansion joint , otherwise it will shorten its service life and increase the load of the pipeline, equipment and supporting components. It is better to neutralize the pipeline. When there is no other way to ensure it, you can use the method of laying pipes, cutting equal length pipes, and then assembling the compensator.
The structure of the rotary compensator specifically includes a rotating tube, anti-friction rolling bearing , sealing cap, and seal. The sealing performance of the rotary compensator consists of two parts: axle sealing and inner hole sealing. The sealing effect of the rubber seal is the sealing effect. The main factor. The axillary angle sealing is achieved by clamping the rubber seal with the sealing cap, so that the sealing material is closely connected with the rotating pipe and the sealing seat to complete the sealing. If a small leak occurs during the use of the rotary pipe compensator, The clamping bolt can be tightened to achieve pressure-proof sealing.
Because the thermal conductivity of the rubber seal is slightly higher than that of the stainless steel plate , the sealing performance of the inner hole is good under warm operating conditions. Function, the higher the material pressure, the better the sealing. In China's high-pressure steam, it has an important sealing function. It can be considered to be canceled in low-voltage steam and boiling water, and is replaced by anti-friction and reliable inner hole sealing. The blind force and frictional resistance are the main factors of the torque of the rotary pipe compensator itself. Therefore, the inner hole sealing must not only have sufficient strength, but also the frictional resistance should be adjusted below 0.1
.
