Multi-Walled Pipe Design for Thermal and Electrical Insulation
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Summary
Problems
Existing multi-walled tubular components for fluid flow lines face challenges in achieving continuous thermal and electrical insulation due to thermally induced distortion from welding, which leads to electrical or thermal bridges and limitations in complex geometry production.
Innovation solutions
A multi-walled tubular component manufactured using additive processes with inner and outer walls arranged coaxially, featuring a hollow space filled with insulating material, eliminating the need for metallic connections and allowing for various geometries, including coiled or curved shapes, with a cavity gap comparable to the wall thickness for efficient insulation.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If welding is used to connect inner and outer walls for stabilization, then structural stability is improved, but thermal and electrical insulation deteriorates due to thermal distortion and formation of thermal bridges
Why choose this principle:
The component is divided into inner and outer wall segments that are not welded together. Instead, temporary connecting elements are used during manufacturing to maintain spacing, and these are removed afterward to create a complete insulating barrier, eliminating thermal bridges while maintaining structural integrity during production.
Principle concept:
If welding is used to connect inner and outer walls for stabilization, then structural stability is improved, but thermal and electrical insulation deteriorates due to thermal distortion and formation of thermal bridges
Why choose this principle:
Temporary connecting elements serve as intermediaries during the manufacturing process to maintain the required spacing between inner and outer walls. These elements are removed after manufacturing to eliminate thermal bridges, having served their purpose only during production.
Application Domain
Data Source
AI summary:
A multi-walled tubular component manufactured using additive processes with inner and outer walls arranged coaxially, featuring a hollow space filled with insulating material, eliminating the need for metallic connections and allowing for various geometries, including coiled or curved shapes, with a cavity gap comparable to the wall thickness for efficient insulation.
Abstract
The present invention provides a multi-walled tubular component (1) for lines through which fluid flows or pressure-bearing bodies and a production method for the same. According to the invention, the tubular component (1) is a bent, angled or bifurcated tubular component (1) manufactured using additive manufacturing processes and is made up of one-piece and non-connected walls (2, 3) arranged one inside the other. An outer wall (2) encloses at least one inner wall (3) in the circumferential direction, so that a cavity (4) is formed between the outer wall (2) and the at least one inner wall, which is filled with a filling material directly during the generative Manufacturing or after, is filled.