Insulation pipes, also known as heat preservation pipes, are steel pipes that have undergone insulation processing to ensure that the internal temperature of the working pipe meets or reaches the required level of surface temperature under various working environments and the influence of external media.
Insulation pipes are widely used in the transportation networks for liquids and gases, including in petrochemical, chemical, centralized heating networks, central air conditioning ventilation pipes, and municipal engineering projects.
Steel-clad steel composite thermal insulation pipes are a type of underground buried pipeline that can be installed underground without a concrete structure. This method allows for the thermal expansion of the working steel pipe to occur inside the outer pipe, thereby reducing material costs, shortening construction time, and ensuring the safety of the heating pipeline. They can be safely used in various temperature environments and are particularly suitable for high-temperature steam pipeline projects. The operating temperature range can reach 150℃-450℃. Below, Tang Guangsong introduces the technical knowledge of the processing and installation of the thermal insulation layer for steel-clad steel buried thermal insulation pipes.
One,Steel-clad steel-insulated pipeBasic Requirements for Installation Technology.
1. Strictly adhere to the construction pipeline quality acceptance standards.
Before pipeline installation, carefully inspect the pipeline specifications, materials, and design for compliance with requirements, following the procedures for rust removal, oiling, pipeline debris, and rust treatment.
3. Installation principle of steel-clad steel thermal insulation pipe: start from large to small; from main to branch; from up to down.
4. The water system is equipped with a drain valve at the low point and an automatic drain valve at the high point.
5. Pipeline installation should follow the principle of "large first, small later; top to bottom; exit first."
6. Upon completion of pipeline installation, water pressure tests were conducted as per design specifications.
