Flexible Insulating Device for Pipeline Compensator Thermal Stress
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Solution Overview
Problem
Existing insulating devices for pipeline compensators face challenges with structural stress, unwanted changes in insulating behavior, and potential damage due to length changes and relative movements, especially at high temperatures, requiring a solution that enhances durability and adaptability with minimal manufacturing and assembly effort.
Innovation Solution
A metal-based insulating device with a tubular design, featuring a flexible outer casing and metallic insulating material, such as stainless steel wool, that is movable with respect to the pipe compensator, providing thermal and optional sound insulation, and is designed for easy connection and high-temperature applications up to 800°C.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a rigid insulating device is used for pipeline compensators, then structural stability is improved, but the device cannot accommodate length changes and relative movements, leading to stress and potential damage
Solution Approach 1:
The insulating device transitions from a rigid structure to a dynamic flexible structure that can adapt to length changes and relative movements of the pipeline compensator. The flexible outer casing and insulating material allow the device to deform elastically with the compensator's movement while maintaining insulation performance.
Solution Approach 2:
The outer casing is designed as a flexible shell that can accommodate dimensional changes of the compensator. This flexible shell structure provides both protection and adaptability, allowing the insulating device to maintain its function while the compensator undergoes thermal expansion or mechanical movement.
2Reliability
If the insulating device is fixed rigidly to the compensator, then insulation effectiveness is improved, but stress concentration occurs during thermal expansion, leading to damage
Solution Approach 1:
The flexible insulating material acts as a cushioning element that absorbs and distributes thermal stresses before they can concentrate and cause damage. The material's flexibility provides a buffer zone that protects the compensator and insulation system from stress concentration during thermal expansion cycles.
Solution Approach 2:
The insulating device uses composite construction with an outer casing and flexible insulating material that work together to provide both thermal insulation and mechanical stress resistance. The combination of materials offers complementary properties: thermal protection and elastic deformation capability.
3Ease of manufacture
If conventional insulating materials are used, then ease of manufacture is improved, but durability at high temperatures greater than 200°C is insufficient
Solution Approach 1:
The insulating material's thermal resistance parameters are optimized for high-temperature service. The material selection and configuration are adjusted to maintain insulation effectiveness and structural integrity at temperatures exceeding 200°C, with particular attention to thermal stability and resistance to thermal degradation.
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 ensures an optimized insulating effect with enhanced durability and stability, allowing for easy adaptation to varying conditions, reduced manufacturing effort, and effective thermal insulation for hot media flowing through pipelines, while preventing foreign substance penetration and allowing for easy recycling.
Implementation Method 1
The insulating device is tubular and surrounds the tube compensator... providing thermal and optional sound insulation... effective thermal insulation for hot media flowing through pipelines
Implementation Method 2
The insulating device is designed as an insulating compensator surrounding the pipe compensator... the insulating device is designed to be movable with respect to the pipe compensator... allowing for easy adaptation to varying conditions
Data Source
Figure 1~2
Figure 3~5
Figure 6~7
AI summary
The device has an insulating material (18) provided and surrounded a compensator (2), where the device or a part of the device is fixed on a pipe part (4) and exhibits a free end (15) with respect to another pipe part, is formed partially flexible or is formed or arranged movably with respect to the pipe compensator. An outer casing (22) surrounds the insulating material, which is arranged on an inner casing that is connected with the former pipe part and with the outer casing in the region of the free end. A circular hollow space is provided between the compensator and the inner casing.