Pipe And Cable Sleeve Seal With Intumescent Fire Barrier
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Solution Overview
Problem
Existing methods for passing pipes or cables through building openings, such as box-shaped housings filled with fireproof sealing compounds, are cumbersome, time-consuming, and unsuitable for applications like pre-assembled air conditioning units, as they require long curing times and inaccessible openings, failing to provide flexible installation and adequate fire protection.
Innovation Solution
A sleeve-like housing with axial passage channels, equipped with brushes and flexible strips coated with intumescent material that expands to form a fireproof barrier, allowing flexible pipe or cable positioning and easy installation while ensuring fireproof closure and thermal insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If box-shaped housings filled with fireproof sealing compounds are used, then fire protection is achieved, but installation time and complexity increase significantly
Solution Approach 1:
The brushes are pre-mounted on the housing walls before installation, and the intumescent strips are pre-coated with fireproof material. This preliminary preparation eliminates the need for time-consuming on-site sealing compound application and curing, while maintaining fire protection effectiveness.
Solution Approach 2:
The fireproof sealing function is extracted from the bulky box-shaped housing structure and transferred to the flexible brushes and intumescent strips. This allows the fire protection mechanism to be separated from the structural housing, enabling faster installation without compromising fire safety.
2Reliability
If box-shaped housings with sealing compounds are used, then fire protection is ensured, but ease of installation deteriorates due to manual effort and accessibility issues
Solution Approach 1:
The brushes are designed to be flexible and movable, allowing them to adapt to different pipe positions and orientations within the passage channel. This dynamic capability enables easy installation in difficult-to-access openings while maintaining fire protection, as the brushes can conform to various configurations without requiring precise manual positioning of rigid sealing compounds.
3Reliability
If traditional sealing methods are used, then fire protection is achieved, but flexibility in pipe positioning is lost
Solution Approach 1:
The brushes function as flexible sealing elements that can bend and conform to the position of pipes or cables passing through the housing. This flexibility allows pipes to be positioned freely within the passage channel while the brushes maintain contact and provide fire protection, eliminating the rigidity constraints of traditional sealing compounds.
4Reliability
If openings are closed with sealing compounds, then fire protection is provided, but accessibility for difficult-to-reach openings becomes problematic
Solution Approach 1:
The brushes automatically close and seal the passage channel when pipes are inserted, without requiring manual intervention to apply sealing compounds in difficult-to-access areas. The flexible bristles self-adjust to fill gaps and provide fire protection around the pipes, making the installation process straightforward even in hard-to-reach openings.
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, provides reliable fire protection, and eliminates the need for additional insulation measures, ensuring fireproof closure and thermal separation between spaces, even after building construction is complete.
Implementation Method 1
flexible strips of material are mounted in the passage channel, and these flexible strips of material are coated with an intumescent material, i.e., a material that expands with exposed to heat and forms a fireproof, rigid body
Data Source
AI summary
The invention relates to a device for passing pipes or cables through an opening in a building. Said device comprises a sleeve-like housing that has an axial passage channel that is open at its opposite ends; bristles that are mounted on the walls of the passage channel in such a way that they are opposite each other and that are extended inwards in such a way that they mesh with one another in order to close the passage channel; and flexible strips of material that are mounted in the passage channel and that are coated with an intumescent material.