Wall Duct Insulating Shell for Enlarged Line Sections
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Solution Overview
Problem
Conventional wall ducts face challenges in accommodating line sections with enlarged outer diameters, requiring costly and time-consuming manual adaptations or stuffing with loose insulation, and often necessitate multiple trades for installation, leading to potential damage and compromised fire and smoke seals.
Innovation Solution
A wall duct design featuring an insulating shell with a flexible section that adapts to the outer contour of line sections with enlarged diameters, providing a form-fitting and frictional seal, and optionally incorporating a preformed inner contour or elastic adhesive connection for easy installation and enhanced sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional pipe shells are adapted manually to accommodate line sections with enlarged outer diameter, then the line section can be accommodated, but the installation becomes time-consuming and costly
Solution Approach 1:
The insulating shell is pre-formed during manufacturing with an enlarged cavity section that anticipates the need to accommodate line sections with enlarged outer diameter. This preliminary preparation eliminates the need for time-consuming manual adaptations during installation, as the enlarged section is already integrated into the shell structure.
Solution Approach 2:
The insulating shell incorporates a section with enlarged outer diameter that matches the dimensions of the line section to be accommodated. By changing the geometric parameters of the shell during manufacturing, it can directly receive and seal around the enlarged line section without requiring post-manufacturing modification.
2Adaptability or versatility
If loose stuffing wool is used to accommodate enlarged outer diameter sections, then the line section can be fitted, but the fire and smoke seal is compromised
Solution Approach 1:
The insulating shell is made of mineral fibers bonded with heat-resistant binder, creating a composite material that combines the insulation properties of mineral fibers with the sealing and structural properties of the binder. This composite structure provides both the adaptability to accommodate enlarged line sections and the reliability of fire and smoke seal integrity.
Solution Approach 2:
The insulating shell incorporates a section with enlarged outer diameter that matches the dimensions of the line section to be accommodated. By changing the geometric parameters of the shell during manufacturing, it can directly receive and seal around the enlarged line section without requiring post-manufacturing modification.
3Adaptability or versatility
If multiple trades are involved in the installation process, then different installation requirements can be met, but the risk of damage to the pipe shell increases
Solution Approach 1:
The insulating shell integrates multiple functions that previously required separate components and trades: the shell itself provides structural support, thermal insulation, and fire/smoke sealing. By merging these functions into a single integrated component, the installation can be performed by a single trade, eliminating the risk of damage from multiple handling operations.
Solution Approach 2:
The insulating shell is pre-formed during manufacturing with an enlarged cavity section that anticipates the need to accommodate line sections with enlarged outer diameter. This preliminary preparation eliminates the need for time-consuming manual adaptations during installation, as the enlarged section is already integrated into the shell structure.
4Reliability
If the insulating shell is made rigid for structural stability, then it provides good sealing, but it cannot adapt to line sections with varying contours
Solution Approach 1:
The insulating shell incorporates a specifically designed section with enlarged outer diameter that has different dimensional characteristics than the rest of the shell. This local modification allows the shell to adapt to line sections with enlarged contours while the remaining portions of the shell maintain their rigid sealing structure.
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
Enables quick and cost-effective insulation of line sections with enlarged diameters, ensuring a smoke and fireproof closure without the need for extensive manual work, while maintaining a flush surface and protecting the insulating element from external damage.
Implementation Method 1
an insulating shell made of mineral fibers, which the line at least in the area of the sheathed through-opening
Implementation Method 2
bulkheads that prevent smoke and/or fire from spreading through the wall duct
Data Source
Figure 1a~1b
Figure 2a~2b
Figure 3a~3b
AI summary
The present invention relates to a wall leadthrough for leading a line through a passage opening, which forms at least one intrados, of a building wall with a substantially vertical or horizontal alignment, wherein the line is encased at least in the region of the passage opening with an insulating material element (10) which has an insulating shell (16) and whose diameter substantially corresponds to the internal diameter of the passage opening, wherein the insulating shell (16) has a cavity for receiving a line section (22) with a widened outer diameter, and wherein the insulating shell (16) is formed from mineral fibers in order to receive the line section (22) with widened outer diameter quickly and in a simple manner.