Helical Multi-Layer Pipe Insulation for Lighter Heat Shielding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing high-temperature insulation materials for pipes face challenges such as low resistance to thermal and mechanical stress, environmental influences, dust generation, complex production processes, high costs, and inadequate insulating effects, often requiring thick and heavy layers for adequate shielding.
Innovation Solution
A high-temperature insulation system comprising a carrier layer with multiple helically wound windings and distinct insulating layers, each with different materials and thermal conductivities, arranged to provide a multi-layered structure that effectively reduces thermal energy transfer and enhances flexibility, ease of production, and environmental safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If thick and heavy insulating layers are used to achieve adequate thermal shielding, then the insulating effect is improved, but the weight and complexity of the insulation system increases
Solution Approach 1:
The patent applies composite materials by combining multiple insulating layers with different materials (mineral wool, glass wool, ceramic fibers, foam materials) each having different thermal conductivities and properties. This multi-material composite structure achieves superior thermal insulation performance with thinner overall thickness compared to single-material solutions, thereby reducing weight while maintaining or improving the insulating effect.
Solution Approach 2:
The insulation system is segmented into multiple discrete layers (first insulating layer, second insulating layer, third insulating layer) rather than using a single thick layer. Each layer serves a specific thermal insulation function and can be optimized independently. This segmentation allows the system to achieve the required thermal shielding with reduced total thickness and weight compared to a monolithic insulation structure.
2Reliability
If multiple insulating layers are used to improve thermal insulation performance, then the insulating effect is improved, but the device complexity increases
Solution Approach 1:
The insulation is divided into multiple functional layers (first insulating layer with mineral wool, second insulating layer with glass wool, third insulating layer with ceramic fibers or foam) rather than using a single complex structure. This segmentation into standardized layers simplifies the overall design and manufacturing process while achieving superior thermal insulation performance.
Solution Approach 2:
Different insulating layers are assigned to different radial positions around the pipe, with each layer having optimized material properties for its specific location. The inner layers use materials suitable for high-temperature exposure while outer layers provide additional insulation and environmental protection. This local optimization of material properties throughout the insulation structure achieves high thermal performance without requiring excessive complexity.
3Ease of manufacture
If conventional insulation materials are used, then the production process is simple, but dust generation during production and processing occurs
Solution Approach 1:
The patent uses composite insulating materials including bound mineral wool, glass wool, and ceramic fibers that are bound together with binding agents. This composite structure significantly reduces dust generation during handling and installation compared to loose-fill insulation materials, while maintaining the same thermal insulation performance. The bound structure allows the material to be handled as cohesive units rather than loose particles.
Solution Approach 2:
The insulation layers utilize porous materials (mineral wool, glass wool, ceramic fibers) that are bound into mat or blanket forms. These porous bound structures reduce dust generation during production and installation compared to loose granular materials, while the porous structure itself maintains the thermal insulation properties through trapped air pockets.
4Reliability
If insulation materials are optimized for specific applications, then the insulating effect is improved, but the adaptability to different shapes and sizes decreases
Solution Approach 1:
The insulation system is segmented into multiple flexible layers that can be individually wrapped around pipes of different diameters and configurations. Each layer can be independently adjusted and secured, allowing the insulation system to adapt to various pipe sizes, elbow joints, and complex geometries while maintaining optimal thermal insulation performance throughout.
Solution Approach 2:
Different insulating layers are applied to different sections of the piping system based on local thermal requirements. High-temperature zones receive layers with higher temperature resistance (ceramic fibers), while lower-temperature zones use materials optimized for their specific conditions. This local optimization allows the system to maintain high insulating effectiveness across diverse applications and geometries.
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 achieves efficient thermal insulation with thinner or lighter layers, improved sound insulation, and increased resistance to mechanical and environmental stresses, while being simpler, safer, and more cost-effective to produce, with a flexible design suitable for various applications.
Implementation Method 1
a high-temperature insulation for thermally insulating pipes
Implementation Method 2
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
Data Source
AI summary
A high-temperature insulation for thermally insulating pipes includes a carrier layer, wound helically to form a tubular main body and has four or more windings, and has three or more different insulating layers. The inner winding 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 contact the carrier layer both radially inwardly and radially outwardly. The insulating layers are arranged in the carrier layer have, along the circular path specified by the winding, a length that corresponds to at least 80% of the circumference of the inner cavity of the tubular main body. The carrier layer, the first insulating layer, the second insulating layer, and the third insulating layer each consist of different materials and/or thermal conductivities and/or temperature resistances.