Prefabricated directly buried steam thermal insulation pipe work by steel tube, foam thermal insulation layer, polyethylene plastic external protecting tube, based on the combination of equipment, in turn, to the outside of the equipment.
Structure:
1, the steel pipe
2, zinc rich primer
3, sliding guide bracket
4, high temperature resistant glass wool
5, aluminum foil reflector
6, air thermal insulation layer
7, coat steel pipe
8, coat steel pipe anticorrosion layers
In structure design scheme of reference to the similar foreign products, adopt unique between bearing and steel casing wall of the pipe as the structure of the sliding interface, used in steel casing sealed good performance characteristics of highly successful solved the difficulties of waterproof impermeability, outside the outer wall of casing used anticorrosion, thermal insulation layer using hydrophobic composite silicate insulation materials on the second floor, inside and outside the emperical bandage to reduce heat loss, bearing heat insulation measures in steel casing, prevent heat bridge.
The service life of the product is used for conveying medium pressure no greater than 2.5 MPa, the temperature is not higher than 350 ℃ pipeline, service life can reach more than 30 years.
Prefabricated directly buried steam thermal insulation pipe steel pipes by conveying medium, hydrophobic compound silicate insulation layer, fiber cloth (aluminum foil), steel casing and coating.
The steel pipe specifications:
Nominal diameter of 3/4 "- 600 mm, and the GB8163-99 seamless steel tube;DN700mm above the accord with GB/T9711.1-97 of welded steel pipe or conform to SY/T5037-99 spiral seam welded steel pipe.
Insulation: insulation materials using hydrophobic compound silicate on the second floor tube shell, emperical bandage, steel pipe, and the steel tube forming an organic whole, and the steel casing by sliding guide bearing.
Features: