Chained Fireproof Sealing Structure for Variable Pipe Penetrations
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Solution Overview
Problem
Existing fireproof systems for buildings face challenges in effectively sealing penetration holes for pipes and ducts, particularly due to improper maintenance and the difficulty in accommodating varying pipe sizes, leading to inefficient fire containment and increased risk of flame and toxic gas spread.
Innovation Solution
A chained fireproof foam sealing system comprising a housing unit with a domed structure, a connecting unit with chain links, and a fixing unit that allows for adjustable length and secure attachment to the wall structure, utilizing fireproof foaming materials that expand to seal penetration holes and prevent detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fireproof filling materials are used in penetration holes, then fireproof sealing can be achieved, but installation and maintenance are difficult and improper maintenance occurs frequently
Solution Approach 1:
The fireproof sealing system is divided into modular components: a fixing frame with multiple fixing holes for easy attachment, a removable cover for access, and pre-positioned fireproof filling materials. This segmentation allows simple installation by attaching the frame and cover, and easy maintenance by removing the cover to access the filling materials without disturbing the entire structure.
Solution Approach 2:
The fireproof filling materials are pre-positioned within the fixing frame during manufacturing, and the frame is designed with pre-drilled fixing holes for immediate attachment to the penetration hole. This preliminary preparation eliminates the need for complex on-site installation procedures and ensures proper positioning of all components before use.
2Reliability
If fireproof filling materials are used to seal penetration holes, then fire compartmentation can be achieved, but the materials may detach from the penetration hole under fire conditions
Solution Approach 1:
The fixing frame is designed with multiple fixing holes that securely anchor the frame to the penetration hole structure before fire occurs. The cover is attached to the frame with fixing holes that provide additional anchoring points. This pre-established mechanical fixation system ensures that the fireproof filling materials remain firmly positioned within the frame even when exposed to high temperatures and thermal expansion during fire conditions.
Solution Approach 2:
The cover is designed with a domed (curved) structure that provides structural strength and stability. This curved geometry distributes thermal and mechanical stresses more effectively during fire exposure, preventing deformation and maintaining the integrity of the sealing system.
3Ease of manufacture
If fixed-size fireproof devices are used, then manufacturing is simplified, but they cannot accommodate varying pipe and duct sizes in buildings
Solution Approach 1:
The fixing frame and cover are designed as universal components with multiple fixing holes positioned at various locations. This configuration allows the same standardized frame and cover to be adapted to penetration holes of different sizes and shapes by selectively using different fixing holes. The fireproof filling materials can be adjusted in quantity and type to match the specific penetration requirements, while the structural components remain standardized for simplified manufacturing.
4Reliability
If complex fixing structures are used to prevent detachment, then sealing stability is improved, but installation complexity and labor cost increase
Solution Approach 1:
The fixing system is segmented into simple, discrete fixing holes distributed across the frame and cover components. Each fixing hole requires only a simple fastening operation, avoiding the need for complex mechanical fasteners, welding, or specialized installation tools. This segmented approach achieves high stability through multiple simple attachment points rather than through structural complexity.
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
Effectively seals penetration holes in pipes, preventing the spread of flames and toxic gases during fires, and can be easily installed and adjusted to fit various pipe diameters, minimizing damage and ensuring secure attachment.
Implementation Method 1
the chamber has fireproof foaming materials which expand when a heat energy exceeding a threshold value affects the chamber
Implementation Method 2
fireproof foaming materials which expand when a heat energy exceeding a threshold value affects the chamber
Data Source
AI summary
The present invention discloses a system installed around a penetration hole of a pipe penetrating wall structure which divides a certain space and sealing the penetration hole in case of fire, which comprises a housing unit, a connecting unit and a fixing unit. A housing unit forming a body and having a predetermined accommodatable space, a connecting unit connected to the housing unit, interconnecting the housing unit in a series and a fixing unit arranged at a side of the housing unit, fixing the housing unit to the wall structure.