Thermal Protection Lining for Heat-Conducting Elements
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Solution Overview
Problem
Traditional thermal protection methods for heat-conducting members like metal pipes are inadequate in preventing temperature propagation across walls, resulting in excessive bulk and inefficient heat dissipation, especially in confined environments.
Innovation Solution
A thermal protection lining that absorbs heat through the vaporization of water from the glue, featuring a pocket structure with honeycomb fabric for uniform glue diffusion, allowing for reduced pipe length coverage and minimal thickness, while ensuring effective insulation and easy assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional insulating cover is arranged around each conductive member, then thermal insulation is provided, but the bulk and volume of the lining increase significantly
Solution Approach 1:
The patent utilizes the phase transition of water to vapor through the glue layer during fire conditions. This endothermic phase change absorbs heat energy, providing thermal protection without requiring thick insulating material. The water contained in the glue vaporizes when exposed to high temperatures, creating a cooling effect that protects the conductive member and surrounding structure.
Solution Approach 2:
The invention employs a composite structure consisting of the glue layer containing water, the thermal protection lining, and the conductive member. This multi-layer composite system combines the heat-absorbing properties of vaporizing water with the insulating properties of the lining material, achieving effective thermal protection with reduced overall thickness compared to traditional single-layer insulation.
2Reliability
If thermal insulation limits radial heat propagation, then heat is contained, but heat propagation along the pipe is favored
Solution Approach 1:
The water-vaporization mechanism in the glue layer actively absorbs heat radially inward toward the conductive member, counteracting the heat propagation along the pipe direction. This endothermic process creates a heat sink effect that disrupts the heat flow path, preventing heat from traveling efficiently along the insulated surface.
3Reliability
If the thermal protection lining is made thicker, then protection is improved, but the space required increases
Solution Approach 1:
The phase change of water to vapor provides an active heat absorption mechanism that supplements the passive thermal insulation. This dual-mechanism approach (phase change + insulation) achieves superior thermal protection with thinner overall lining thickness, as the vaporization process occurs within the glue layer itself rather than requiring additional insulating material thickness.
4Reliability
If uniform glue distribution is achieved, then heat absorption is improved, but manufacturing complexity increases
Solution Approach 1:
The use of porous or permeable substrates (such as fabric or mesh) as the base for the glue layer facilitates uniform glue distribution through capillary action. The porous structure naturally wicks and distributes the glue evenly across the surface during application, eliminating the need for complex coating equipment or manual spreading processes while ensuring consistent water content and heat absorption characteristics.
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 provides enhanced thermal protection with reduced bulk and space requirements, effectively limiting temperature propagation and facilitating quick installation, while maintaining comparable protection levels to traditional insulating methods.
Implementation Method 1
part of this heat is dissipated in the lining by the vaporization of the water given off by the glue in the event of an abnormal rise in temperature
Implementation Method 2
The purpose of the thermal protection in question here is to limit the propagation of the rise in temperature in a contiguous space separated by a wall
Data Source
Figure 1
Figure 2~3
AI summary
Method for installing a thermal protection lining on a heat-conducting element (1) passing through a wall (2), comprising: - receiving the thermal protection lining (5) comprising a first face (6) permeable to water, a second face (7) impermeable to water opposite the first face and a thermal insulator (8) between the first and second faces; - assembling the thermal protection lining on the heat-conducting element (1) against the wall (2), so that the thermal protection lining (5) surrounds only a portion of the heat-conducting element (1) in contact with the wall (2) with the first face (6) in contact with the heat-conducting element (1), the assembly being carried out with an adhesive comprising active elements capable of releasing water when the temperature rises.