Insulation steel pipe high-density polyethylene polyurethane insulation pipe, polyurethane direct-buried insulation pipe is widely used in liquid and gas transportation pipe network, chemical pipeline insulation engineering petroleum, chemical, centralized heating and heating network, central air-conditioning ventilation pipe, municipal engineering. The high temperature prefabricated direct buried thermal insulation pipe is a direct buried prefabricated thermal insulation pipe with good thermal insulation performance, safe and reliable, and low engineering cost. It effectively solves the problem of insulation, sliding lubrication and waterproofing of exposed pipe ends of 13O °C-6OO °C high temperature heat transfer prefabricated direct buried insulation pipe in urban central heating.
The direct buried thermal insulation pipe not only has the advanced technology and practical performance that the traditional trench and overhead laying pipeline are difficult to compare, but also has significant social and economic benefits, and is also a powerful measure for heating energy saving.
The direct buried thermal insulation pipe adopts the direct buried heating pipeline technology, which indicates that the development of China's heating pipeline technology has entered a new starting point. Polyurethane insulation pipe has high-performance insulation, waterproof, anti-corrosion, heat insulation, sound insulation, flame retardant, cold resistance, anti-corrosion, light capacity, high strength, simple and convenient construction, and is not afraid of plant root thorns. It has become a construction, transportation, petroleum, chemical industry, Insulation, heat insulation, waterproof plugging, sealing, etc. in the power, refrigeration and other industrial sectors are not short.
Polyurethane insulation pipe is used for various pipelines in the room, centralized heating pipes, central air-conditioning pipes, chemical, pharmaceutical and other industrial pipelines for thermal insulation, cold preservation engineering, oil pipeline engineering, steam transportation and other pipeline projects.
Since the birth of the polyurethane composition data in the 1930s, the rigid polyurethane insulation pipe has been rapidly developed as an excellent thermal insulation material. Its application scale is also more and more extensive, and it is also because of its simple construction, energy saving and anti-corrosion effect. It is widely used in various pipes such as heating, cooling, oil transportation and steam transportation.
It is widely used in various pipes such as heating, cooling, oil transportation and steam transportation. The insulation layer-polyurethane foaming is applied to the anticorrosive layer of the steel pipe by means of on-site pouring or pre-forming, and the method is simple and convenient. The thermal conductivity is small: the thermal conductivity of the polyurethane insulation tube is * in the insulation data, so that the heat loss of the material can be reduced to the limit.
Polyurethane insulated steel pipe and steel pipe fittings:
The seamless steel pipe, spiral steel pipe and electric welded steel pipe made of 20# and O235 steel respectively are used in accordance with the national and petroleum standards; the seamless steel pipe adopts the GB/T8163-2008 standard; the spiral steel pipe adopts SY/T5037-2000, GB/ T9711.1-2008, electric welded steel pipe adopts GB/T3091-2001.
Under normal circumstances, DN20-DN150 adopts seamless fluid or electric welded steel pipe, spiral steel pipe is used above DN200, and various types of steel pipes required by users can be used according to engineering needs.
It is suitable for the insulation and cold preservation project of various media in the range of -50 °C - 150 °C. It is widely used in thermal insulation and cold preservation projects in urban central heating, warm rooms, cold storage, coal mines, oil ports, air conditioners, and chemical industries.
This product has a low density. Low thermal conductivity, anti-aging, low temperature resistance, anti-corrosion, non-absorption, simple construction, no pollution. The polyurethane rigid foam insulation layer and the high-density polyethylene outer casing are tightly combined. The product is mainly used in the central heating supply network of the town, the oil transportation pipeline, the water pipeline in the alpine region and the industrial pipeline engineering in the plant. It is highly efficient. Insulation, waterproof and anti-corrosion and easy to construct, not afraid of the advantages of plant root thorns, construction does not require trenching, can be buried directly in the 0.6-1.2 m frozen soil layer, heat loss can be reduced by 40% compared with the traditional process, the service life is more than other insulation The anti-corrosion material is increased by 3-5 times and the service life can reach 30-50 years. Performance index of prefabricated polyurethane insulation pipe: The overall performance of the directly buried insulation pipe is excellent, and the blasting treatment of the outer surface of the steel pipe and the corona treatment of the inner surface of the outer pipe are strictly implemented to further improve the bonding performance of the insulation pipe. The insulation layer material is a density of rigid polyurethane foam, which fully fills the gap between the steel pipe and the casing, and has a certain bonding strength, so that a solid whole is formed between the steel pipe, the outer casing and the heat insulation layer.
