Spiral Pipe Insulation Layers for Lighter High-Temperature Shielding
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Solution Overview
Problem
Existing high-temperature insulation materials for pipes face challenges such as low resistance to thermal and mechanical stress, environmental influences, dust formation, complexity in transportation and storage, high costs, inadequate optical and haptic properties, and insufficient insulating effectiveness, often requiring thick and heavy layers for adequate shielding.
Innovation Solution
A high-temperature insulation system comprising a spirally wound carrier layer with multiple insulating layers of different materials and thermal conductivities, arranged in contact with the carrier layer both internally and externally, providing a graded thermal conductivity profile and enhanced material boundaries for improved insulation and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If conventional insulation materials are used to provide adequate thermal shielding, then sufficient insulation performance is achieved, but the insulating layers become particularly thick and heavy
Solution Approach 1:
The patent applies composite materials by combining multiple insulating layers with different material compositions and thermal conductivities. The insulation system includes at least three insulating layers with varying thermal conductivities arranged in a specific configuration, creating a composite structure that achieves superior insulation performance per unit weight compared to conventional single-material insulation.
Solution Approach 2:
The patent implements local quality by assigning different thermal conductivities to different layers of the insulation system. The insulating layers have spatially varying properties, with each layer optimized for its specific position in the thermal gradient, allowing thinner overall insulation while maintaining effective thermal shielding.
2Reliability
If existing insulation materials are used, then basic insulation function is provided, but resistance to thermal and mechanical stress is low
Solution Approach 1:
The patent uses composite materials to enhance reliability under thermal and mechanical stress. By combining materials with complementary properties - some providing thermal stability, others providing mechanical strength - the insulation system achieves high resistance to combined thermal-mechanical loading without requiring overly complex structural designs.
Solution Approach 2:
The patent applies segmentation by dividing the insulation into multiple discrete layers, each potentially made from materials optimized for specific stress conditions. This layered segmentation allows each layer to handle particular aspects of thermal and mechanical stress, improving overall reliability while maintaining manageable structural complexity.
3Loss of energy
If traditional insulation materials are used, then insulation function is achieved, but significant dust is generated during manufacturing and processing
Solution Approach 1:
The patent employs flexible shells and thin films as insulating layers, which can be manufactured as continuous coatings or pre-formed wraps that minimize dust generation during installation. These film-based insulation solutions replace traditional loose-fill or batt materials that generate significant dust during handling and processing.
Solution Approach 2:
The patent utilizes insulation materials that can be applied as disposable or easily replaceable components, such as pre-fabricated insulation wraps or coatings that are installed as complete units. This approach reduces the need for extensive on-site processing and material handling that would generate dust.
4Loss of energy
If conventional insulation materials are used, then basic insulation is provided, but optical and tactile properties are inadequate and unappealing
Solution Approach 1:
The patent applies composite materials where outer insulation layers incorporate materials with enhanced optical and tactile properties. These composite structures maintain effective thermal insulation while providing aesthetically pleasing surfaces with desirable visual appearance and touch characteristics.
Solution Approach 2:
The patent uses flexible shells and thin films as outer insulation layers that can be formulated to provide attractive optical properties such as uniform coloration, smooth surfaces, and appealing tactile characteristics, while the underlying insulation structure maintains effective thermal performance.
5Loss of energy
If conventional insulation materials are used, then insulation function is achieved, but coating adhesion is unfavorable and surfaces are difficult to coat
Solution Approach 1:
The patent employs flexible shells and thin films as insulation layers that provide smooth, uniform surfaces ideally suited for coating application. These film-based structures offer excellent substrate properties for adhesion, allowing easy application of protective or decorative coatings compared to conventional rough or irregular insulation surfaces.
Solution Approach 2:
The patent uses composite materials with surface layers specifically designed to enhance coating adhesion. These composite structures incorporate surface-modified materials or primer layers that facilitate easy coating application while the core insulation material maintains effective thermal performance.
6Loss of energy
If thick insulation layers are used to achieve adequate shielding, then sufficient thermal protection is provided, but transportation and storage become cumbersome
Solution Approach 1:
The patent applies composite materials that achieve high thermal shielding effectiveness in a thinner overall package. By combining multiple layers with different thermal conductivities, the system provides equivalent insulation performance to much thicker single-material layers, significantly improving transportation and storage characteristics.
Solution Approach 2:
The patent utilizes parameter changes by varying the thermal conductivity parameters across different layers. This allows optimization of the insulation thickness while maintaining effective thermal shielding, reducing the overall volume and weight for easier transportation and storage.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution offers efficient, flexible, and cost-effective thermal insulation with reduced dust formation, improved optical and haptic properties, and effective soundproofing, allowing for thinner, lighter insulating layers or the use of cheaper materials with equivalent performance, while also providing fire resistance and ease of production and application.
Implementation Method 1
a support layer which is wound spirally onto a tubular base body with four or more windings
Implementation Method 2
pipes and piping systems carrying hot fluids such as gases and liquids must be shielded from the environment by suitable insulation to prevent unwanted heat loss
Implementation Method 3
the support layer, the first insulating layer, the second and third insulating layers each consist of different materials and/or have different thermal conductivities
Data Source
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AI summary
The present invention relates to high-temperature insulation for thermally insulating pipes, comprising a carrier layer, which is wound helically to form a tubular main body and has four or more windings, and comprising three or more different insulating layers, wherein the inner winding of the carrier layer circumferentially surrounds the inner cavity of the tubular main body, the circumference of the inner cavity is at least 50 mm, the insulating layers are arranged in the gaps between the windings of the carrier layer and are in contact with the carrier layer both radially inwardly and radially outwardly, the insulating layers arranged in the carrier layer have, along the circular path specified in each case by the winding, a length that corresponds to at least 80% of the circumference of the inner cavity of the tubular main body, and the carrier layer, the first insulating layer, the second insulating layer and the third insulating layer each consist of different materials and/or have different thermal conductivities and/or have different temperature resistances.