Quality and quantity of large diameter fluid steel pipe
The full name of UHPE steel plastic composite pipe is UHMWPE steel plastic composite pipe. UHMWPE Composite pipe is made of UHMWPE pipe and carbon steel pipe through scientific process. The utility model is characterized in that the steel pipe with flange is used as the outer layer of the reinforcing protective layer, and the ultra-high molecular weight polyethylene pipe is applied as the inner layer of the base pipe. The base pipe of the inner ultra-high molecular weight polyethylene pipe extends along the outer pipe orifice to the outer edge of the flange end face to form an overall structure, which combines the characteristics of ultra-high molecular weight polyethylene pipe and carbon steel pipe, forming a structure with wear resistance, impact resistance Pipeline equipment with corrosion resistance, high pressure resistance, self lubrication, impact absorption performance and anti adhesion.
It is widely used in fly ash transportation and return water pipeline of thermal power generation system, tailings and slurry transportation in mining industry, high-pressure transportation of fly coal and coal water slurry in coal preparation plant in coal industry, slurry and corrosive medium containing slag transportation in other industries. In order to meet the requirements of long distance, high pressure, high wear resistance, anti adhesion and scaling, it is developed and produced Φ 89mm-- Φ 630mm ordinary spiral welded pipe composite pipe and high-quality seamless steel pipe composite pipe of various specifications. The above several different types of composite pipes are lined with UHMWPE pipes, which not only makes full use of the excellent properties of UHMWPE, but also achieves the functions of adapting to high pressure, long-distance field transportation and preventing external force damage through composite reinforcement, filling the gap of this kind of composite pipes in China and expanding the application field.
It has all the characteristics of UHMWPE pipe
Due to the complete and effective isolation between the transmission medium and the steel pipe, it only contacts with the ultra-high molecular weight polyethylene pipe layer. With the unique molecular structure of UHMW-PE, it has all the characteristics of ultra-high molecular weight polyethylene pipe, such as extremely high wear resistance, excellent chemical stability, good self-lubricating, non-toxic to biology, unique low temperature resistance, surface non adhesion, etc, Greatly prolong the service life of the pipeline.
UHMWPE pipe itself has extremely high impact resistance. As a steel pipe with reinforced protective layer, it can effectively prevent the creep of the inner lining pipe, increase its ability to resist impact, pressure, bending and strength, and has stronger bearing capacity. It can withstand higher water pressure than ordinary engineering plastic pipes, and can reach 6.4Mpa after testing, The UHMWPE Composite pipe is not afraid of collision and the lining will not break. It is especially suitable for some high-pressure transmission pipeline equipment with harsh environment.
Because the thermal conductivity of UHMWPE pipe is more than 1000 times smaller than that of steel, it can greatly reduce the thermal insulation requirements of pipeline transportation. Its temperature performance is good in the environment of - 50 ℃ to 80 ℃, which is of great significance for fluid transportation in cold areas.