Modular Fire Protection Sleeve with Intumescent Polyhedron
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Solution Overview
Problem
Existing fire protection sleeves are limited to specific opening cross-sections, requiring either standard sizes that are not optimally designed or individually manufactured collars for each opening, lacking flexibility and efficiency.
Innovation Solution
A modular fire protection sleeve with a regular polyhedron block of intumescent material and a frame featuring a modular structure, allowing for easy adaptation to different sizes and combination with other collars, using a reinforcing insert and intumescent foam for enhanced stability and expansion control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If standard sizes are used for fire protection sleeves, then manufacturing and inventory are simplified, but the sleeves are not optimally designed for specific opening cross-sections
Solution Approach 1:
The frame is divided into multiple side sections and front sections that can be assembled together like a modular system. This segmentation allows the same standardized components to be configured for different opening sizes while maintaining optimal fit, resolving the contradiction between standardization and adaptability.
Solution Approach 2:
The modular frame sections are designed to be universally applicable across different opening configurations. Each side section and front section can serve multiple purposes depending on how they are assembled, allowing a single standardized component set to adapt to various opening cross-sections.
2Adaptability or versatility
If individually designed fire protection collars are manufactured for each opening, then optimal design for specific cross-sections is achieved, but manufacturing complexity and cost increase
Solution Approach 1:
Instead of manufacturing completely custom collars for each opening, the system segments the frame into standardized modules that can be assembled in different configurations. This reduces manufacturing complexity while maintaining the ability to achieve optimal fit for specific openings.
Solution Approach 2:
The modular assembly system provides dynamic adaptability, allowing the same standardized components to be reconfigured for different opening sizes without requiring custom manufacturing for each case.
3Reliability
If the block is made significantly higher than the side sections to improve sealing, then sealing effectiveness increases, but the overall device complexity and material usage increase
Solution Approach 1:
The block is made slightly higher than the side sections (2-6 mm) - not excessively high, but just enough to provide the necessary sealing pressure. This partial excess action achieves reliable sealing while minimizing the increase in device complexity and material usage.
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 flexible sealing of larger openings (100 mm×300 mm to 150 mm×750 mm) with improved stability and smoke-tightness, reducing logistical and economic burdens by using fewer modular parts and allowing on-site adaptation.
Implementation Method 1
The fire sleeves typically include an intumescent material that is placed around the ducts... In the event of a fire, the heat causes the intumescent insert to activate and expand... The block preferably consists of intumescent material
Data Source
Figure 1
Figure 2
Figure 3a~3d
AI summary
A fire protection sleeve (10) for sealing off openings that extend through walls (11) or ceilings, in particular line leadthroughs (12), comprises a frame (16) and a block (20) arranged therein, said block consisting of optionally intumescent material. The fire protection sleeve is characterized in that the block (20) is a regular polyhedron.