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Structure and characteristics Structure This product is made of a cold-punched steel strip welded with a mesh tube as a reinforcing skeleton, and is made of heat-resistant polyethylene (PE-RT) as the main material. Due to the introduction of a strong skeleton and heat-resistant polyethylene (PE) -RT), the pressure resistance and heat resistance of the pipe are significantly improved, and can be used as a hot water conveying pipe, a secondary heating pipe, and an industrial fluid conveying pipe. Our company has developed an electrofusion tube with telescopic compensation function (the outer layer is used to enhance the reinforcement layer of the project. The inner layer is PE-RT), the principle is The outer layer sleeve is used to enhance the reinforcement layer of the engineering material to improve the pressure resistance grade of the pipe fitting, and the inner layer PE-RT absorption pipe is used to greatly improve the hot water pipeline system due to the axial stress generated by the thermal expansion and contraction during the hot water transportation. The overall mechanical condition during operation greatly increases the safety factor of the entire piping system. Introduction to prefabricated insulation pipe process The mesh steel strip with heat-resistant polyethylene pre-made insulation pipe produced by our company is a new type of heating pipe, which consists of working pipe (including pipe) Piece), polyurethane rigid foam insulation layer, poly B protection The shell is tightly combined to form. Since the three are integrated, they are applied In the laying of a direct buried salt pipeline, the heat caused by the temperature change of the inner pipe The expansion stress is transmitted to the outer protective tube through the polyurethane insulation layer, and the outer protective tube The soil friction is also transmitted to the worker through the polyurethane insulation layer. As a tube, the friction of the soil is used to control the heat elongation of the pipe. due to Compared with the steel pipe, the composite pipe greatly reduces the axial stress. therefore It is easier to realize the design and construction of direct buried and uncompensated pipelines. PE-RT prefabricated steel-plastic composite pipe knot diagram Work tube characteristics ● It can work for a long time at 90 °C; ●The inner wall is smooth, non-fouling, the coefficient of wear resistance is small, and the head loss is 30% lower than that of the steel pipe; ●Good ring stiffness and impact resistance; ●Low linear expansion coefficient and thermal conductivity ●Good corrosion resistance and wear resistance ● Light weight, convenient transportation and construction; ●Good hygiene and ensure that the water quality is in good condition for a long time. |
