Flood Vent Door Sealing for Air Leakage and Fluid Equalization
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Solution Overview
Problem
Traditional flood vents are deficient in preventing air from entering or exiting structures, as they often allow gaps between the door and frame, leading to energy inefficiencies and aesthetic issues, particularly when installed on interior sides of buildings.
Innovation Solution
The flood vent design incorporates foam or rubber insulation along the inner perimeter of the frame, positioned either exterior or interior to the door, and a dual-frame system with pivotally mounted doors, including a flexible panel with embedded solid panels, to enhance sealing and prevent air leakage while allowing fluid equalization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional flood vents are installed, then flooding fluid equalization is achieved, but air leakage occurs through gaps between door and frame
Solution Approach 1:
The patent employs foam insulation material positioned between the door and frame to create a flexible sealing effect. The foam conforms to the gaps and irregularities, preventing air leakage while maintaining the flood vent's functionality for fluid equalization during flooding events.
Solution Approach 2:
The flood vent door assembly combines multiple materials including the door itself, frame, and foam insulation material. This composite structure integrates both the structural components needed for flood protection and the insulating material needed to prevent air leakage, resolving the contradiction between reliability and harmful air leakage.
2Productivity
If gaps are left between door and frame for flood vent operation, then fluid flow is enabled, but energy efficiency deteriorates due to air infiltration
Solution Approach 1:
The foam insulation material acts as a flexible barrier that allows the door to move for fluid flow while simultaneously blocking air infiltration paths. This maintains energy efficiency without compromising the flood vent's ability to equalize hydrostatic forces through fluid movement.
Solution Approach 2:
The foam insulation serves as an intermediary element between the door and frame, mediating between the conflicting requirements of allowing fluid flow and preventing air leakage. It permits controlled fluid passage while blocking uncontrolled air infiltration that would reduce energy efficiency.
3Object-generated harmful factors
If foam insulation is positioned exterior to the door, then air sealing is improved, but installation complexity increases
Solution Approach 1:
The foam insulation material's flexible nature allows it to be positioned in various locations (exterior or interior to the door) and still effectively seal gaps. This flexibility simplifies installation compared to rigid sealing materials, as the foam can adapt to different positioning scenarios while maintaining air sealing effectiveness.
4Object-generated harmful factors
If rubber liner is positioned interior to the door, then air sealing is improved, but device complexity increases
Solution Approach 1:
The rubber liner provides a flexible sealing solution positioned interior to the door. While this adds a component to the assembly, the flexible nature of the rubber liner simplifies the overall sealing mechanism compared to rigid alternatives, as it can accommodate door movement and frame irregularities without requiring complex adjustment mechanisms.
Data Source
AI summary
According to one embodiment, a flood vent includes a frame forming a fluid passageway through an opening in a structure. The flood vent further includes a door pivotally mounted to the frame in the fluid passageway for allowing a fluid to flow through the fluid passageway. The door has two opposing faces that include a first face and a second face. The flood vent further includes a first float positioned within the door in a location in-between the first face and a second float. Additionally, the first float is configured to allow the door to pivot in a first direction. The flood vent further includes the second float positioned within the door in a location in-between the second face and the first float. Furthermore, the second float is configured to allow the door to pivot in a second direction.