Manufacturing equipment and development direction of anti-corrosion steel pipes

3PE anti-corrosion steel pipe has extremely high tightness, long-term operation can greatly save energy, reduce costs and protect the environment. It has strong corrosion resistance, the construction side is simple and fast, and the service life can reach 30-50 years. It also has good corrosion resistance and impact resistance under low temperature conditions, and the PE water absorption rate is low (less than 0.01%). At the same time, it has high epoxy strength, low water absorption of PE and good softness of hot melt adhesive. It has high corrosion resistance, but 3PE has relatively shortcomings in addition to the related advantages, its shortcomings are: Compared with the cost of other repair materials, the cost is high.

From the analysis of the development market of 3PE anti-corrosion steel pipes in the later period, in China, the three-layer PE has been the first to be applied in the oil and gas system. The Shaanxi-Beijing Natural Gas Pipeline and Kushan Oil Pipeline that have been built in China have recently adopted three-layer PE external anti-corrosion coatings for the national key project West-East Gas Pipeline of nearly 4,000 kilometers. In Tianjin, the 67-kilometer high-pressure pipeline of Shaanxi Gas into Tianjin, the 30-kilometer high-pressure natural gas pipeline of the outer ring line, and the 122-km pipeline of the underground gas storage of the Shaanxi-Beijing Line are also three-layer PEs. It has become the development direction of the outer anti-corrosion layer of the pipeline in the future!

3PE anti-corrosion steel pipe manufacturing equipment:

First of all, its main equipments are: steel pipe buffer platform, pipe shifting unit, tractor, pipe penetrating machinery, high-pressure gun machine, repair platform, transmission line, steel pipe preheating furnace, shot blasting machine main machine maintenance platform and divergent grid steel pipe return transmission Line, fast-forward roller set, fast-out roller, maintenance platform, etc.

The anticorrosive steel pipe anticorrosive operation production line can be applied to the single-layer FBE, double-layer FBE, double-layer PE, double-layer PP and 3PE anti-corrosion operations of steel pipes. The minimum processing pipe diameter is Φ104mm (4 "), the maximum processing pipe diameter is Φ1600mm (63"), and the maximum processing capacity is more than 350m2 / h. The production line includes steel pipe transmission system, surface treatment system, pipe body dust removal system, steel pipe heating system, electrostatic spray System, coating system, water cooling system, end cutting system, hydraulic and pneumatic system, detection system and electric control system, etc.