Secondary Lint Trap Layout for Low-Pressure Dryer Venting
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Solution Overview
Problem
Conventional residential laundry dryers often fail to capture excess lint in their primary traps, leading to lint accumulation in vent ducts, inefficient dryer operation, and potential fire hazards, especially when secondary lint traps are difficult to access or require lengthy conduit connections that reduce air pressure.
Innovation Solution
A secondary lint trap with an elongate housing and removable tray, featuring a stainless steel mesh screen, is mounted directly atop the dryer, allowing for efficient lint capture and easy maintenance, even in narrow spaces, using minimal conduit connections to maintain air pressure and prevent moisture accumulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a secondary lint trap is installed in a difficult-to-reach location, then lint capture effectiveness is improved, but ease of maintenance deteriorates
Solution Approach 1:
The lint trap is repositioned from a horizontal wall-mounted location to a vertical orientation on the dryer's rear surface, utilizing the vertical dimension for accessibility while maintaining effective lint capture through the screen's positioning in the exhaust path
2Adaptability or versatility
If conduit length is increased to reach vent duct, then adaptability of installation locations is improved, but air pressure and dryer efficiency deteriorate
Solution Approach 1:
The lint trap housing is integrated directly onto the dryer's rear surface, merging the lint trap function with the dryer structure itself, thereby eliminating the need for lengthy external conduit connections and maintaining exhaust air pressure while providing adaptability through direct mounting
3Adaptability or versatility
If multiple 90° elbows are used in conduit configuration, then adaptability of routing paths is improved, but air pressure and dryer operation efficiency deteriorate
Solution Approach 1:
The lint trap is extracted from the traditional wall-mounted position and relocated to the dryer's rear surface, removing the need for complex conduit routing with multiple elbows and replacing it with a direct connection that maintains air pressure and efficiency
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 effectively reduces lint accumulation in vent ducts, maintains efficient dryer operation, and minimizes the risk of fire hazards by ensuring easy access and maintenance of the lint trap, while adhering to recommended conduit lengths to preserve air pressure.
Implementation Method 1
A secondary lint trap with an elongate housing and removable tray, featuring a stainless steel mesh screen, is mounted directly atop the dryer
Data Source
AI summary
A secondary lint trap couplable between a laundry dryer and a building-embedded vent duct. The trap has an elongate housing. Aligned inlet and outlet apertures are formed in bottom and top sides of the housing's rearward ends. A tray is removably insertable within the housing. A screened aperture in the tray is aligned between the inlet and outlet apertures when the tray is inserted within the housing. The housing is mountable above the dryer such that the inlet and outlet apertures extend rearwardly of the dryer. This facilitates coupling of the dryer's exhaust outlet to the inlet aperture through one 90° elbow via a first short, substantially straight, elbowless conduit; and facilitates coupling of the vent duct to the outlet aperture through one other 90° elbow collar via a second short, substantially straight, elbowless conduit.