Fire-Safe Penetration Sealing With Bow-Clamped Mineral Wool
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Solution Overview
Problem
Existing fire safe penetration seal systems for buildings are difficult to install and require multiple elements, leading to complexity, increased costs, and potential inaccuracies that compromise fire resistance and insulation performance.
Innovation Solution
A system utilizing a non-combustible insulation element with a larger length or width than the aperture, made of mineral wool or bound fibers, is inserted in a bow-shaped course, allowing it to be force-clamped without additional supporting elements, enabling a continuous mortar or concrete layer to cover it, thus enhancing fire resistance and insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fire safe penetration seal systems are used, then fire resistance is provided, but installation complexity increases and multiple elements are required
Solution Approach 1:
The patent combines multiple traditional sealing elements (insulation material, supporting structure, shuttering/formwork) into a single integrated fire safe penetration seal element. This single element includes an insulation core surrounded by a structural housing that provides both support and formwork functions, eliminating the need for separate components and simplifying installation while maintaining fire resistance.
Solution Approach 2:
The structural housing of the penetration seal element serves multiple functions simultaneously: it provides mechanical support for the insulation material, acts as its own formwork during installation, enables direct insertion into the aperture without additional shuttering, and maintains structural integrity under load. This multi-functionality reduces the total number of elements required.
2Reliability
If traditional fire safe penetration seal systems are used, then fire resistance is achieved, but installation time and cost increase
Solution Approach 1:
The penetration seal element is pre-assembled with the insulation material securely positioned within the structural housing before installation. The housing is pre-formed to provide its own formwork, eliminating the need for on-site construction of shuttering and formwork. This preliminary preparation significantly reduces installation time and labor costs while ensuring proper positioning and fire resistance.
Solution Approach 2:
The penetration seal element is designed as a self-contained modular unit that can be independently installed without requiring assembly of multiple separate components during construction. This segmentation into a single installable module streamlines the installation process, reduces time loss, and maintains the required fire resistance performance.
3Strength
If additional supporting elements and shuttering are used, then structural support is provided, but device complexity and installation difficulty increase
Solution Approach 1:
The structural housing is designed to integrate the supporting function and formwork function into a single component. The housing itself provides the necessary structural support and acts as its own formwork, eliminating the need for additional supporting elements and external shuttering. This integration maintains structural strength while significantly easing installation.
Solution Approach 2:
The structural housing is designed to be self-supporting and self-formworking. It provides its own structural support without requiring additional supporting elements, and it serves as its own formwork during installation without requiring external shuttering. This self-service capability reduces installation complexity and difficulty while maintaining the required structural support.
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 simplifies installation, reduces the number of elements needed, and provides improved fire resistance and thermal/sound insulation characteristics, ensuring a seamless and effective sealing without additional shuttering or formwork.
Implementation Method 1
the fire safe sealing consists of at least one non-combustible insulation element, preferably made of mineral wool, respectively bound mineral fibers
Implementation Method 2
the insulation element, having a length and/or a width being longer than a length and/or a width of the aperture, is inserted into the aperture in a bow-shaped arrangement... the insulation element is therefore force clamped into the aperture
Data Source
Figure 1
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Figure 6
AI summary
The invention relates to a system consisting of a fire safe sealing (1) and an aperture (2) in a floor (3) or a ceiling of a building, through which a pipe (4), a cable or the like is guided, the ceiling or the floor (3) having an upper surface (5) and a lower surface (6), whereby the fire safe sealing (1) consists of at least one non-combustible insulation element (8), preferably made of mineral wool and being bendable with respect to at least its longitudinal axis, having a length (I) and/or a width being longer than a length (L) and/or a width of the aperture (2), whereby the difference(s) of the length (I) of the insulation element (8) relative to the length (L) of the aperture (2) and/or the width of the insulation element (8) relative to the width of the aperture (2) is adjusted so that the insulation element (8) inserted into the aperture (2) does not extend beyond two planes defined by the upper surface (5) and the lower surface (6) of the ceiling or the floor (3).