BFMH basalt fiber multi-layer structure high-pressure composite pipe

By covering the basalt fiber multi-layer structure high-pressure composite fiber braided layer on the inner layer of the metal solid slurry pipe, and setting a flange and wear-resistant layer, the problems of excessive weight of the pipeline and insufficient pressure resistance are solved, and the lightweight and pressure resistance of the pipeline are achieved, which significantly improves the construction efficiency and service life.

CN119755425AActive Publication Date: 2025-04-04BEIHANG UNIV +1
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Patent Information

Application Number
CN202411957563.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-04-04
Estimated Expiration
2044-12-27

AI Technical Summary

Technical Problem

The existing metal solid slurry pipes have increased weight due to excessive thickness of the pipe wall, which is difficult to install and transport. At the same time, the pressure resistance is insufficient, which poses safety risks, and is prone to corrosion and wear during long-term use, affecting service life and conveying efficiency.

Method used

By covering the basalt fiber multi-layer structure high-pressure composite fiber braided layer on the metal inner layer, thinning the thickness of the metal inner layer, and setting flanges and wear-resistant layers at both ends of the metal inner layer to form a gradient thick wall structure to improve the overall strength and pressure resistance of the pipe.

Benefits of technology

It realizes the lightweight and pressure resistance of the pipeline, reduces the weight of the pipe, facilitates installation and transportation, improves construction efficiency, and significantly improves the wear and corrosion resistance of the pipeline, and extends the service life.

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Abstract

The invention relates to the field of solid slurry pipelines, and provides a BFMH basalt fiber multilayer structure high-pressure composite pipe. The pipeline comprises a metal inner layer and an outer composite fiber composite material layer, the thicknesses of the two ends of the metal inner layer are gradually increased, and a gradually-changing thick wall-thin wall-gradually-changing thick wall structure is formed. The composite fiber composite material layer can be made of high-performance fibers such as basalt fibers or glass fibers and is coated with an ultraviolet-proof layer or a basalt fiber composite material ultraviolet-proof layer. Metal flanges are arranged at the two ends of the metal inner layer, and a wear-resistant layer is further arranged in the metal inner layer and extends to the flange connecting end face to form a flange end face connecting layer. The metal pipeline aims at solving the problems that an existing metal pipeline is too heavy and insufficient in pressure resistance, the conveying efficiency and safety of the mining industry are improved, and the metal pipeline can be used for conveying ore pulp, hot water, hydrogen, air and the like.
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