Large-caliber high-voltage electric smelting pipe fitting
A high-voltage, large-diameter technology, applied in the direction of pipes/pipe joints/fittings, pipe connection layout, mechanical equipment, etc., can solve problems such as falling pipe fittings, medium leakage, rupture, etc., to improve the pressure bearing capacity and pressure bearing Ability to increase the effect of tensile strength
Active Publication Date: 2020-05-19
江苏法尔胜新型管业有限公司 +2
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Problems solved by technology
[0004] At present, the pressure-bearing capacity of large-diameter high-pressure pipelines is increased by adding a metal reinforcement layer, but after welding with electric fusion pipe fittings, it will fall off or the pipe fittings will rupture, causing practical problems of medium leakage
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[0019] Example: as attached figure 1 And attached figure 2 As shown, a large-diameter high-voltage electrofusion pipe fitting includes a sleeve 1 made of polyethylene (PE). The outer surface of the sleeve 1 is provided with two terminals 2, and the terminal 2 includes a terminal on the outer layer Protective cover 2-1, internal threaded hole 2-2 and through hole 2-3 are provided inside the terminal protective cover, internal threaded hole 2-2 is connected to copper electrode 2-4, and through hole 2-3 passes through resistance wire 2- 5. One end of the resistance wire 2-5 is connected to the electric heating wire 9, and the other end of the resistance wire 2-5 is connected to the copper electrode 2-4; an observation hole 3 is provided on the wall of the sleeve, and the observation hole 3 runs through the sleeve The wall of cylinder 1; the cylinder of sleeve 1 is coated with metal reinforcement layer 4, as attached image 3 The metal reinforcement layer 4 shown is a metal rou...
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Abstract
The invention discloses a large-caliber high-voltage electric smelting pipe fitting. The large-caliber high-voltage electric smelting pipe fitting comprises a sleeve made of polyethylene (PE), whereintwo wiring terminals are arranged on the outer surface of the sleeve, a welding area is arranged on the inner wall of the sleeve, a threaded cavity is formed in the welding area, an electric heatingwire is arranged in the threaded cavity, a metal reinforcing layer is arranged in a barrel body of the sleeve, and an elastic metal ring is arranged on the inner wall surface of the sleeve. The large-caliber high-voltage electric smelting pipe fitting serves as a connector accessory of a large-caliber pipeline, the pressure bearing capacity of the large-caliber electric smelting pipe fitting is enhanced by arranging the metal reinforcing layer, the tensile property of the pipeline and the electric smelting pipe fitting is improved by arranging an annular cavity and an elastic metal ring, the pressure bearing capacity of a large-caliber pipeline system is effectively improved, and the pressure grade range of the pipeline series is expanded.
Description
technical field [0001] The invention relates to the technical field of composite pipe connection, in particular to a large-diameter high-voltage electric fusion pipe fitting. Background technique [0002] Electrofusion fittings have one or more combined heating elements that convert electrical energy into heat to weld polyethylene (PE fittings) to the pipe or fitting spigot end. [0003] In the process of rapid development of urbanization in my country, steel skeleton reinforced polyethylene composite pipes gradually replace traditional metal pipes by virtue of their advantages of energy saving, environmental protection, superior performance, high cost performance and good anti-corrosion performance, and are widely used in municipal water supply and drainage, heat pipes Internet, oil and gas fields, ports, printing and dyeing and other fields, and has been favored by users. However, in actual engineering applications, plastic pipes are mainly used for low-pressure fluid tr...
Claims
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IPC IPC(8): F16L47/03
CPCF16L47/03
Inventor 蔡文祥迟明韩志平白勇
Owner 江苏法尔胜新型管业有限公司