SUPER-LONG HEAT INSULATION STEEL CASING PIPE AND MACHINING PROCESS THEREFOR

DE602019074634T2Active Publication Date: 2025-08-27XINDA KECHUANG TANGSHAN PETROLEUM EQUIP CO LTD
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Patent Information

Application Number
DE602019074634
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2019-01-29
Filing Date
2019-03-19
Publication Date
2025-08-27
Estimated Expiration
2039-03-19

AI Technical Summary

Technical Problem

Current thermal insulation technologies for underground pipes, such as those used in geothermal and petroleum exploitation, suffer from poor insulation performance, leading to increased energy consumption and reduced service life due to deformation under high geothermal temperatures and pressures.

Method used

A super-long thermal insulation steel jacket pipe design featuring a vacuum insulation layer with a spiral annular support frame made of elastic material, filled with a phase-change material, and sealed with anti-corrosion coating, ensuring vacuum integrity and mechanical stability.

Benefits of technology

The design provides enhanced thermal insulation and corrosion resistance, maintaining consistent temperature within the pipe and extending service life, reducing energy costs and deformation risks.

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