The installation method of sleeve compensator mainly includes the following key steps and precautions:
Preparation
Inspection and custody: Ensure that the sleeve compensator is properly kept before installation to avoid sun, rain and dust pollution. At the same time, check whether the model specifications of the compensator meet the design requirements, and whether the surface is not damaged or seriously corroded.
Measurement and validation: Accurately measure the compensator size to ensure that the equipment can be installed correctly, and select the appropriate materials and models according to the operating temperature, pressure and media.
Installation Steps
Installation location determination: Choose the appropriate location to install the sleeve compensator, ensuring that it can adequately absorb the thermal expansion, contraction and other displacements of the piping system.
Height adjustment and calibration: Place the sleeve compensator on the pipe and make the necessary height adjustment and vertical calibration to ensure that it is installed along the centerline of the pipe and the different axiality does not exceed 1%.
Fixing and connecting：
For unidirectional compensators, the sliding sleeve should be installed at the media inflow end.
The pipe sections welded at both ends of the compensator must be grooved. After welding, the hydraulic pressure test should be carried out according to the acceptance specification. During pressure test, the bolts at both ends of the packing chamber should be tightened until there is no leakage.
Guided sliding supports are provided at the pipe close to the compensator to prevent lateral displacement.
Flanged connection: Install flange connections at both ends of the compensator and tighten them firmly with bolts to ensure all mounting points are firm and reliable.
Insulation and waterproofing: The thermal insulation and waterproof structure of the compensator may be the same as that of the pipe, but no binding force may be exerted on the telescopic section.
Precautions
Direction of media flow: For the two-way thrust-free compensator, it must be installed according to the flow direction of the medium injected in the schematic diagram. When the medium is steam, it will avoid the formation of air plug in the compensator.
Supporting structure: For situations where additional support is required (such as higher positions), steel structural supports are used to provide stable support.
Operational strength: Pay attention to not excessive strength during installation to prevent damage to threads and flange surfaces, so as to avoid leakage.
Running Checks: After the compensator is installed, it is necessary to check and tighten the bolts at both ends of the packing chamber again after a period of operation.
Installation method under special circumstances
According to the specific application scenario, different installation methods such as spring support, bracket support, suspension installation, steel structure support or bellows end hoisting may be adopted.
Maintenance and Inspection
Ensures that the compensator can be installed at maximum length at all temperatures, without pre-tension or pre-pressing.
Check the status of the compensator periodically during operation, including but not limited to tightness, flexibility, and abnormal noise or vibration.
The above is the general installation method of sleeve compensator. The specific installation process may vary depending on the product model and field conditions, so it is recommended to read the product manual carefully.