Modular Radon Mitigation Sleeve with Nested Deployment
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Solution Overview
Problem
Current radon mitigation techniques, such as active soil depressurization and encapsulation, are either expensive or provide inconsistent results, and existing devices are difficult to maneuver through limited crawl space openings, making it challenging to effectively reduce radon and other soil gases in buildings.
Innovation Solution
A modular apparatus with a cylindrical outer sleeve formed by interconnected modular structures, featuring flaps and a lid with pipe flanges, allows for the creation of a durable subterranean cavity to exert maximum negative pressure on soil gases, using a suction pipe connected to an inline fan for efficient gas extraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If encapsulation or subsoil systems are used for radon mitigation, then radon levels can be reduced, but the cost increases significantly and installation becomes complex
Solution Approach 1:
The device is divided into multiple modular components including an outer sleeve, inner sleeve, flaps, and lid that can be assembled separately and installed as a complete unit. This segmentation allows for easier handling through limited openings while maintaining the effectiveness of the mitigation system.
Solution Approach 2:
The inner sleeve is nested within the outer sleeve, creating a compact structure that can be maneuvered through limited crawl space openings. The nested design reduces the overall footprint during installation while providing sufficient surface area for effective radon mitigation when deployed.
2Stress or pressure
If a large diameter suction point is created for effective radon extraction, then negative pressure can be maximized, but the device becomes difficult to maneuver through limited crawl space openings
Solution Approach 1:
The nested sleeve structure allows the device to be compact during installation, fitting through standard crawl space openings, while providing a large effective surface area when deployed for maximizing negative pressure and radon extraction efficiency.
Solution Approach 2:
The device transitions from a compact nested state during installation to an expanded operational state, effectively changing dimensions to accommodate both the constraint of small openings and the requirement for large surface area pressure application.
3Reliability
If traditional radon mitigation methods are used, then some radon reduction is achieved, but the results are inconsistent and often insufficient to meet EPA and WHO action levels
Solution Approach 1:
The device incorporates movable flaps that can dynamically adjust to maintain optimal sealing and pressure distribution, ensuring consistent performance. The flexible design adapts to varying soil conditions and gas flow patterns, maintaining reliability across different installation sites.
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 modular apparatus provides a cost-effective and consistent method for mitigating radon and other soil gases, maximizing negative pressure for effective gas extraction while preventing debris entry, thus reducing harmful gas levels in buildings.
Implementation Method 1
The pipe may be sealed with polyurethane caulk or concrete to form a durable airtight seal. The other end of the suction pipe is connected to an inline fan that when operational, creates a negative pressure in the suction point which draws out the radon gas, and other soil gases, from beneath the slab.
Implementation Method 2
A suction pipe is inserted and sealed into the suction point. The other end of the suction pipe is connected to an inline fan that when operational, creates a negative pressure in the suction point which draws out the radon gas, and other soil gases, from beneath the slab.
Data Source
AI summary
Presented is an apparatus for radon and other soil gas mitigation. The apparatus includes an outer sleeve substantially cylindrical in shape and formed using one or multiple modular structures having foldable flaps with openings. The apparatus further includes a lid for closure of a top opening of the outer sleeve. The lid includes pipe flange(s) configured thereon for allowing a suction pipe to connect at its one end. During operation, other end of the suction pipe is operationally connected to operating inline fan which when operated exerts maximum negative pressure on the surrounding soil to entrain various soil gases that needs to be drawn out of the soil gas prone site (Eg. building).