Detachable Pipe Sleeve for Floor Penetration Fire Sealing
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Solution Overview
Problem
Existing pre-embedded/pre-built-in hole creating apparatuses for buildings lack convenience in installation and maintainability, as they often require additional shielding members to prevent concrete leakage and do not allow for inspection or replacement of thermal-expandable foam, which can deteriorate over time, affecting their flame-retardant performance.
Innovation Solution
A detachable pre-embedded/pre-built-in hole creating apparatus with a pipe casing, thermal-expandable foam, and an inspection annulus that allows for the removal and replacement of the foam without damaging the building structure, featuring a securing ear instead of a conventional annular projecting rim for easier installation and an annular shielding plate for enhanced fire and smoke blocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional pre-embedded pipe sleeve with thermal-expandable material is used, then flame-retardant function is provided, but the thermal-expandable material cannot be inspected or replaced when deteriorated
Solution Approach 1:
The pipe sleeve is divided into multiple detachable components: the pipe sleeve body, the thermal-expandable material, and the sealing member. This segmentation allows the thermal-expandable material to be removed and replaced independently without damaging the building structure, while maintaining the flame-retardant function through the intact pipe sleeve structure.
2Strength
If an annular projecting rim is used to secure the pipe sleeve, then the pipe sleeve can be fixed to the base, but additional shielding members are required to prevent concrete leakage
Solution Approach 1:
The sealing function is merged into the pipe sleeve structure itself through the sealing member that extends into the base. This integration eliminates the need for separate shielding members to prevent concrete leakage, reducing device complexity while maintaining the fixing capability provided by the annular projecting rim.
3Object-affected harmful factors
If thermal-expandable material is sealed inside the pipe casing, then flame-retardant function is achieved, but the material deteriorates over time without possibility of replacement
Solution Approach 1:
The pipe sleeve structure transitions from a static sealed configuration to a dynamic configurable structure. The detachable sealing member allows the system to adapt over time by enabling replacement of the thermal-expandable material when it deteriorates, thereby extending the effective service life while maintaining fire and smoke blocking capability.
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 apparatus ensures effective flame and smoke retardation, allows for the inspection and replacement of thermal-expandable foam, simplifies the installation process, and maintains the flame-retardant function over time, while preventing smoke spread through the use of an annular shielding plate.
Implementation Method 1
when sufficiently high temperature flames or gases spread to the pre-embedded pipe sleeve along the pipeline in the event of a fire, the thermal-expandable material will react and expand drastically
Data Source
AI summary
The present invention provides a method for producing a through hole in a floor system for pipe penetration. The method includes providing a deck system with ridge portions and valley portions; creating a hollow on the deck system; providing a ring with at least one securing ear formed on a perimeter thereof; mounting the ring onto the deck system by jointing the at least one securing ear of the ring and the at least one of the ridge portions such that the ring is fixedly received in the hollow of the deck system; and fixedly receiving a pipe casing in the ring mounted on the deck system, wherein the pipe casing defines a path for the pipe penetration. The method further includes forming a concrete layer on the deck system to obtain a composite slab.