What is steel-jacketed steel steam insulation pipe? The structure and function of steel-jacketed steel insulation pipe

The steel-in-steel steam insulation pipe is composed of an outer protective steel pipe plus a steel pipe anti-corrosion, a polyurethane foam insulation layer and an inner working steel pipe. The steel-in-steel steam composite insulation pipe is suitable for conveying steam or other media below 2.5MPa and 350 degrees Celsius. The product uses a steel pipe as an outer protective layer, which has the advantages of high strength, not easy to damage, simple construction and maintenance, and long service life.

2. The structure of steel-jacketed steel insulation pipe

The insulation structure of steel-jacketed steel insulation pipe is divided into internal sliding type and external sliding type according to different sliding modes.

1. Internal sliding type: The insulation structure consists of working steel pipe, aluminum silicate, drag reduction layer, microporous calcium silicate, insulation layer, stainless steel fastening steel belt, aluminum foil reflective layer, polyurethane insulation layer, outer jacket steel pipe, and outer anti-corrosion layer.

2. External sliding type: The insulation structure consists of working steel pipe, glass wool insulation layer, aluminum foil reflective layer, stainless steel fastening belt, sliding guide bracket, air insulation layer, outer protective steel pipe, and outer anti-corrosion layer.

3. The role of steel jacketed steel insulation pipe

1. Anti-corrosion layer: protect the outer steel pipe from corrosion by corrosive substances and extend the service life of the steel pipe.

2. Outer protective steel pipe: protect the insulation layer from groundwater erosion, support the working pipe and withstand a certain external load to ensure the normal operation of the working pipe. 3. Polyurethane foam layer: ensure the medium temperature and the surface of the outer protective pipe to maintain room temperature.

4. Barrier and reflection layer: ensure that the organic foam material does not enter the inorganic hard high-temperature resistant layer; reflect part of the heat of the high-temperature resistant layer.

5. Inorganic hard insulation layer: high temperature resistant, ensure the interface temperature between the organic insulation layer, and ensure that the foam is not carbonized.

6. Drag reduction layer: ensure the free movement of the working steel pipe due to thermal expansion and contraction.

7. Working steel pipe: ensure the normal flow of the conveying medium.