What are the differences between the corrugated expansion joint and the rotary compensator in assemb
Because the thermal conductivity of the rubber seal is slightly higher than that of the stainless steel plate, so the tightness is good under the actual operating working condition of the temperature state. The bore seal has a self-sealing effect, and the higher the working pressure of the material, the better the seal. The bore sealing bears the blind force, friction resistance is the main element of the turntable type pipe compensator itself torsional distance, thus the bore sealing should not only have sufficient compressive strength, and the friction resistance should also be adjusted to 0.1 below.
The structure of the rotary compensator specifically has a rotating tube, wear reduction assured rolling bearing, hermetic screw cap, hermetic seat, clamping bolt, rubber seal, size one prefabricated components. The sealing of the rotary compensator has two components namely axillary angle sealing, bore sealing. The characteristics of the rubber seal are the main elements of the actual effect of the seal. The axillary angle sealing is based on the sealing screw cap tightening rubber seals, so that the sealing material and the rotating tube, sealing seat close contact to complete the sealing, rotary pipe compensator application in case of small leaks, can be twisted tightening bolts to complete with pressure waterproof plugging.
Before assembly, should check the type specification of the corrugated expansion joint, specifications and the rubber support of the pipeline is equipped, in line with the design provisions. The compensator with lining cylinder, should pay special attention to make the lining cylinder orientation and material mobility orientation, carry out "cold tight" compensator, its pre-deformation commonly used to assist prefabricated components, should be disassembled after the compensator pre-deformation.
Pipeline assembly should be immediately after the end of the disassembly of the compensator as the assembly of transport maintenance assistance positioning organization and standard parts, and according to the design needs of the positioning equipment to the normative parts, so that the pipeline in the natural environment standards to get complete compensation. In addition to the design program provides for pre-stretching pressure or "cold tight" pre-deformation, the application of metal bellows deformation is prohibited to regulate the assembly error of the pipeline to prevent jeopardizing the conventional role of the expansion joint, otherwise it will reduce its service life and increase the load of pipeline, machinery and equipment and support prefabricated components. The pipeline alignment is better, in the absence of other ways to ensure, can choose to take over the laying and then cut down the equal length of the pipeline and then assemble the compensator to ensure the approach.
