Spiral-Wound Pipe Insulation With Through-Thickness Property Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional methods for forming pipe insulation require on-site glass manufacturing, which is inefficient and generates emissions, and do not allow for variation of insulation properties through the thickness of the pipe.
Innovation Solution
A method and system for forming pipe insulation using preformed fibrous insulation materials, such as mats or felts, that are spiral wound around a mandrel and treated with energy to fix the layers, allowing for adjustable properties and eliminating the need for on-site glass manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional mandrel winding or continuous molded pipe processes are used, then pipe insulation can be produced, but the properties of the pipe insulation cannot be varied through the thickness and on-site glass manufacturing is required
Solution Approach 1:
The pipe insulation is constructed from multiple discrete layers of fibrous material wound around the mandrel. Each layer can be made from different materials or have different properties, allowing the insulation properties to be varied through the thickness. This segmentation enables customization of thermal, acoustic, or other insulation properties at different radial positions without requiring complex on-site glass manufacturing.
Solution Approach 2:
The fibrous insulation materials are prepared and manufactured beforehand as separate layers or mats, then transported to the pipe insulation production site. This preliminary action eliminates the need for on-site glass manufacturing equipment, as the materials are produced in advance using conventional processes and simply need to be wound and bonded into the final pipe insulation structure.
2Ease of manufacture
If on-site glass manufacturing is used, then pipe insulation can be formed, but emissions are generated and infrastructure needs increase
Solution Approach 1:
The glass manufacturing process is extracted and removed from the pipe insulation production site. Instead of manufacturing glass fibers on-site, pre-formed fibrous insulation materials are transported to the production location. This extraction eliminates the harmful emissions associated with on-site glass manufacturing while still enabling on-site assembly of the pipe insulation product.
Solution Approach 2:
Preformed fibrous insulation materials serve as an intermediary between the glass manufacturing process and the final pipe insulation product. These materials are manufactured using conventional processes at centralized facilities, then transported to pipe insulation production sites where they are wound and bonded around mandrels. This intermediary approach eliminates local emissions while maintaining manufacturing capability.
3Adaptability or versatility
If preformed fibrous insulation materials are spiral wound around a mandrel, then properties can be adjusted and emissions reduced, but production throughput must approximate conventional methods
Solution Approach 1:
The pipe insulation is formed by continuous spiral winding of fibrous material layers around a rotating mandrel, maintaining continuous production without interruption. The mandrel rotates while material is wound in a spiral pattern, and bonding is applied continuously to secure the layers. This continuous action maintains high production throughput comparable to conventional methods while enabling property variation through material selection for different layers.
Solution Approach 2:
The spiral winding pattern creates a curved, helical structure as layers are wound around the rotating mandrel. This curved winding path allows continuous material application while maintaining uniform layer distribution and density. The spiral geometry enables efficient use of material and maintains production speed by avoiding interruptions associated with linear winding methods.
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
This approach enables efficient and versatile production of pipe insulation with varying properties through the thickness, reducing emissions and infrastructure needs, while maintaining uniform fiber distribution and approximating conventional production throughput.
Implementation Method 1
treated with energy to fix the layers
Data Source
AI summary
Methods of and systems for forming pipe insulation are disclosed. The pipe insulation has properties that are non-homogenous through its thickness.