Plastic sheathed steel polyurethane Direct burial Thermal insulation pipe
The polyurethane directly buried thermal insulation pipe has the good characteristics of * * thermal insulation, waterproof, anti-corrosion, thermal insulation, sound insulation, flame retardant, cold resistant, anti-corrosion, light capacity, high strength, simple and fast construction, and is not afraid of plant root thorns. It has become the Ministry of Industry of construction, transportation, petroleum, chemical, power, refrigeration, etc door It is an indispensable material for heat insulation, waterproof and leak sealing. Polyurethane directly buried insulation pipe is used for various indoor and outdoor The Conduit , central heating pipeline, air conditioner Thermal insulation and cold insulation engineering of pipelines, chemical and other industrial pipelines, oil pipeline engineering, steam transmission and other pipeline engineering. The polyurethane directly buried thermal insulation pipeline can reduce the heat loss by more than 40% compared with the ordinary pipeline in the 0.6-1.2m frozen soil layer, and its service life is more than 3-5 times longer than other thermal insulation and anti-corrosion materials, and its service life can reach 30-50 years.
Plastic sheathed steel polyurethane directly buried insulation pipe
The structure of polyurethane directly buried insulation pipe is divided into three layers from inside to outside:
The inner layer is the working core pipe for conveying medium, and the core pipe is generally made of seamless pipe (GB8163-87), spiral welded pipe (GB9711-88; SY/T5038-92), straight seam welded pipe (GB3092-93), galvanized steel pipe and PPR are selected according to different user requirements, and the core pipe diameters are [φ 22, 25, 32, 38, 45, 57, 76, 89, 108, 133, 159, 219, 273, 325, 377, 426, 478, 529, 630, 720, 820, 920, 1220];
The middle layer material is polyurethane foam plastic or composite thermal insulation material, [the thickness of the thermal insulation layer is 30-150mm];
The outer layer is high-density polyethylene jacket pipe, FRP winding pipe and anti-corrosion steel pipe.
Application of polyurethane directly buried insulation pipe:
The polyurethane directly buried thermal insulation pipe is suitable for the thermal insulation and cold insulation engineering of conveying various media in the range of - 50 ℃ - 150 ℃. It is widely used in urban central heating, heating rooms, cold storages, coal mines, oil pipeline ports, chemicals, natural gas pipelines, power direct burial, air conditioning pipeline insulation, cable conduits, steam insulation pipes and other industries for thermal insulation and cold insulation projects.
Plastic sheathed steel polyurethane directly buried insulation pipe
Polyurethane directly buried insulation pipe - advantages
1. It has strong corrosion resistance and waterproof ability, and its comprehensive cost is low
According to the estimation of relevant departments, the double pipe heating pipeline can generally reduce the project cost by about 25% (using glass fiber reinforced plastic as the protective layer) and 10% (using high-density polyethylene as the protective layer).
2. Low heat loss and energy saving. Heat loss is only 25% of that of traditional pipes
Thermal conductivity of polyurethane insulation pipe ℃ Water repellency 0.03kg/cm3
3 Long service life
Correct installation and use can make the service life of the pipe network reach 30-50 years, and the maintenance cost is low.
4. Less land occupation and faster construction are conducive to environmental protection
It can reduce earthwork excavation by more than 50%, and reduce civil masonry and concrete by 90%
