Composite Fire Protection Profiles for Faster Sealing Installation

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Solution Overview

Problem

Existing fire protection sealing materials, such as polyurethane cushions and blocks, require numerous units and time-consuming cutting to fit openings, with inefficiencies in production and reduced fire resistance at lower densities.

Innovation Solution

Fire protection profiles made of composite materials with inorganic permeable fiber fabrics and films, allowing for bonding during fires and reduced density, enabling easier installation and improved fire resistance with fewer additives.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional polyurethane blocks are used for fire protection sealing, then fire resistance is achieved, but installation complexity increases due to the need for numerous units and cutting operations

Engineering Contradiction:
Improvefire resistanceVSAvoidinstallation complexity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The sealing system is divided into modular fire protection profiles that can be easily assembled. Each profile contains fire-resistant material in a structured format with integrated sealing edges, allowing simple connection without complex cutting or multiple components.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention uses composite material structures combining fire-resistant core material with integrated sealing elements (such as rubber or plastic edges). This composite design provides both fire protection and mechanical sealing functions in a single component, eliminating the need for separate sealing operations.

Inventive Principle:
Principle #40Composite materials

2Ease of operation

If lower density fire-resistant material is used, then installation ease improves through compressibility, but fire resistance performance deteriorates

Engineering Contradiction:
Improveinstallation easeVSAvoidfire resistance
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The invention employs composite material compositions that achieve optimal balance between density and fire resistance. The composite structure allows lower overall density while maintaining fire protection performance through the synergistic combination of different materials with complementary properties.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The fire-resistant material is formulated with specific density parameters (100-200 kg/m3) that provide compressibility for easy installation while maintaining sufficient fire resistance. The material composition and density are optimized to achieve both installation ease and fire protection reliability.

Inventive Principle:
Principle #35Parameter changes

3Ease of manufacture

If single-mold manufacturing process is used for fire protection units, then production simplicity is maintained, but manufacturing efficiency decreases

Engineering Contradiction:
Improveprocess simplicityVSAvoidmanufacturing efficiency
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The manufacturing process is segmented into distinct stages: producing fire-resistant material cores separately, manufacturing sealing elements separately, and then assembling them into complete profiles. This segmentation enables parallel production and specialization, significantly improving overall manufacturing efficiency.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The composite structure allows different components (fire-resistant core and sealing elements) to be manufactured using different processes optimized for each material type, then assembled together. This approach improves efficiency by using the most appropriate manufacturing method for each component rather than forcing a single-mold process on all elements.

Inventive Principle:
Principle #40Composite materials

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 reliable, easy-to-install fire protection with reduced material usage and simplified production, achieving effective fire resistance and improved performance in water jet tests with lower density profiles.

Implementation Method 1

the fire protection material of a first fire protection profile expands through the composite material of an immediately adjacent second fire protection profile towards the interior of the second fire protection profile

Methodology Applied
Scientific EffectIntumescent expansion: Intumescent Materials

Implementation Method 2

The composite hose forms a thermally resistant outer layer, which has the positive effect of creating a stable ash crust, particularly through the compression of the fire-resistant material

Methodology Applied
Scientific EffectThermal resistance: Thermal Insulation

Data Source

PatentEP3743645B1Assembly comprising a plurality of fire protection profiles and method for producing a fire protection profile
Publication Date: 2023.05.24 HILTI AG
  • EP3743645B1 patent drawingFigure 1~2
  • EP3743645B1 patent drawingFigure 3~4
  • EP3743645B1 patent drawingFigure 5

AI summary

The invention relates to an assembly (10) comprising at least two fire protection profiles (12), which have a hose (18) made of a composite material (19) filled with a fire protection material (20), wherein the composite material (19) has an inorganic fibre material (24), which is connected to a film (22), wherein the fire protection profiles (12) are designed such that they are baked to one another in the event of fire. The invention further relates to a method for producing a fire protection profile.