Light insulation hose and manufacturing method thereof

Abstract

The invention discloses a light insulation hose and a manufacturing method thereof. The light insulation hose comprises an inner layer, an enhancement layer and an outer protecting layer successivelyarranged from inside to outside. The enhancement layer is twisted and woven by fiber filaments, the inner layer and the outer protecting layer are prepared by extrusion molding on a plastic blend in asame die, and the plastic blend is prepared by blending 10-30% by mass of hollow glass beads and 70-90% by mass of a plastic raw material. The plastic raw material is prepared from the components inparts by weight: 65-70 parts of polyethylene, 30-35 parts of polytetrafluoroethylene, 13-18 parts of epoxy resin, 3-7 parts of color master batch, 8-11 parts of filler, 3-8 parts of an antioxidant, 2-5 parts of an ultraviolet light absorber, 2-7 parts of a light stabilizer and 1-4 parts of a flexibilizer. According to the invention, by adding the hollow glass beads, the insulation performance of the hose itself is improved greatly and the integral weight of the hose can be also reduced, so that the problem that transported oil is thickened and transported oil is frozen in cold weather is solved.

Description

technical field [0001] The invention relates to the technical field of hose processing, in particular to a lightweight thermal insulation hose and a manufacturing method thereof. Background technique [0002] At present, natural gas transmission in oilfields is mainly carried by steel pipes. In recent years, due to severe corrosion of steel pipes, some parts have been replaced by polymer pipes, and it is more likely that they will be completely replaced in the future. But whether it is a steel pipe or a polymer pipe, when the weather is cold, there is a disadvantage of not being insulated. The temperature of the oil pumped up from the well is high, the viscosity is relatively low, the oil is relatively thin, and it is easy to transport. As the transportation distance becomes longer and longer, due to the poor insulation of the pipeline, the oil temperature drops, the viscosity increases, and the oil becomes thicker, making transportation difficult; the general method is to ...

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Problems solved by technology

[0003] In order to solve the problem of non-insulation of the conveying pipe, usually, the manufacturer will lay the pipe first, and then outsource the insulation material outside the pipe. After being damp, the insulation effect will be greatly reduced. In order to ensure the insulation effect, after the insulation material is wrapped, another layer of waterproof layer must be wrapped, which is cumbersome to operate.

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