Prefabricated direct buried fixed joint
It has strong waterproof and anti-corrosion ability. It can be directly buried in the ground or water without the need for a pipe trench. The construction is simple and quick, and the overall cost is low.
The utility model relates to a steam directly buried heat insulation pipe heat insulation fixed bracket, which includes a working steel pipe and an outer casing which is sheathed outside the working steel pipe. The inner and outer sealing plates are arranged inside the working steel pipe and the outer casing. On the inner wall of the outer casing and the outer casing, a reinforcing rib is installed in the sealing plate to prevent the sealing plate from moving due to the thrust generated by the thermal expansion of the working steel pipe; the sealing plate is made of a material with good heat insulation performance and good flexibility. The utility model facilitates the maintenance and inspection of the pipeline, improves the thermal insulation effect, and has a good thermal insulation effect, achieves the purpose of preventing the chronic diffusion and leakage of the heat source, indirectly prevents the thermal environment pollution, and protects the green environment.
The inner layer of the thermal insulation material is wrapped with microporous calcium silicate on the inner steel pipe, and the gap is filled with high temperature resistant and high elastic insulation material, which effectively reduces heat loss. The outer layer of insulation is made of polyurethane insulation material, which uses the excellent insulation performance of polyurethane to control the surface temperature of the outer casing below 50 ° C to protect the anticorrosive layer and increase the overall life of the pipeline.