1. Anti-corrosive coating: Maintain external steel pipe to prevent corrosion and prolong service life of steel pipe.
2. External protection steel pipe: Maintain insulation layer from open water corrosion, support working pipe and accept certain external loads to ensure the normal operation of working pipe.
3. polyurethane foam layer: ensure the medium temperature, ensure the external tube surface to adhere to normal temperature.
4. barrier, reflective layer: ensure that the organic foam data do not enter the inorganic hard and high-temperature resistant layer; reflect the heat resistance of the high temperature layer.
5. inorganic hard insulation layer: high temperature resistance, ensure the interface temperature between the organic insulation layer and ensure that the foam is not carbonized.
6. Drag Reduction Layer: Guarantee the free movement of hot expansion and cold contraction of working steel pipe.
7. Working steel pipe: Ensure the normal activity of delivery medium.
Product structure:
Steel jacket steel directly buried insulation pipe is composed of internal working steel pipe, external maintenance steel pipe and intermediate insulation layer. The working steel pipe is sandblasted with two layers of anti-rust paint. The insulation layer consists of high temperature fiber felt, ultra-fine micro-porous calcium silicate insulation tile and polyurethane foam plastic. The coated steel pipe is sandblasted and wound with six layers of glass fiber and resin anticorrosive coating.
Performance characteristics:
1. Waterproof and moisture-proof
2. High temperature and high pressure resistance, suitable for medium temperature 350 C, pressure 2.5 Mpa
3. Low heat consumption, better heat preservation effect than any traditional heat preservation method.
4. Anti-corrosion ability is strong, anti-corrosion coating is strong and not easy to destroy.
5. Long service life, up to 30-50 years
A steam insulated pipe with steel sleeves is made up of a super fine glass wool which is filled with a steel pipe, an anticorrosive coat tube, and a steel tube filled with steel tube and outer steel pipe. It can also be made of graphite, calcium silicate tile and polyurethane foam. Steel sleeve (steel sleeve) embedding technology is a new embedding technology of waterproof, leak-proof, impermeability, compression and full blockade. It is a great break in the application of direct embedding technology in areas with high open water level.
The primary problem for the maintenance pipe of directly buried pipeline is the reliability of tight waterproof. Besides, it should have good mechanical strength. Because of the high strength of steel sleeve, welding connection is adopted, the reliability of waterproof sealing performance is very high. In addition, its high temperature resistance performance can not be compared with other external maintenance pipes.
Steel sleeve steel thermal insulation pipe steel sleeve steel steam thermal insulation steel pipe steel sleeve steam insulation pipe, steel sleeve steel heat preservation steel pipe, it is made of the super fine glass wool which is filled with the steel pipe, the anticorrosive coat pipe and the filled steel tube between the steel pipe and the outer steel pipe, and it can also be made of graphite, calcium silicate tile shell and polyurethane foam.
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