Cyclone Filter Particulate Separation for Laundry Dryer Lint Removal
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Solution Overview
Problem
Traditional lint screens in laundry dryers face a tradeoff between efficiency and effectiveness in filtering out lint particulates, with fine meshes becoming clogged and coarse meshes allowing finer particles to pass through, leading to inefficiencies in dryer performance and lint removal.
Innovation Solution
A cyclone filter system is introduced, featuring a cylindrical body with an air inlet and vortex diverter that separates particulates from airflow, directing them to a particulate outlet and clean air outlet, enhancing lint separation and collection without the need for traditional lint screens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fine mesh is used in the lint screen, then the filtering efficiency for lint particulates is improved, but the mesh becomes clogged easily, increasing temperature and reducing airflow
Solution Approach 1:
The patent removes the traditional lint screen entirely and replaces it with a cyclone separation system that extracts the filtering function from the mesh structure, eliminating clogging while maintaining particle separation capability
Solution Approach 2:
The mechanical mesh filtering system is replaced with a cyclone separation system that uses centrifugal force and airflow dynamics to separate particles, substituting mechanical interception with aerodynamic separation
2Reliability
If a coarse mesh is used in the lint screen, then clogging is reduced and airflow is maintained, but finer grain lint particulates pass through the filter
Solution Approach 1:
The patent uses pneumatic principles by employing airflow dynamics and cyclonic motion to separate particles of all sizes, replacing the static mechanical mesh with a dynamic fluid-based separation system
Solution Approach 2:
The separation mechanism changes from static mesh size selection to dynamic airflow parameter control, where particle separation is achieved through varying airflow velocity and centrifugal force rather than fixed geometric constraints
3Measurement precision
If a traditional lint screen is used, then lint particulates are filtered, but the dryer efficiency decreases and maintenance frequency increases
Solution Approach 1:
The patent extracts the lint collection function from the main airflow path by using a separate cyclone chamber, allowing continuous operation without the efficiency loss associated with traditional screens that obstruct the primary airflow
Solution Approach 2:
The cyclone separator acts as an intermediary device between the dryer and exhaust, performing lint separation in a separate pathway that does not impede the main drying airflow, thus maintaining dryer efficiency while achieving filtration
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 cyclone filter system significantly improves particulate separation efficiency, increasing lint removal by at least 35% compared to traditional screens, reduces clogging, and allows for easier maintenance with a larger particulate hopper capacity, minimizing user intervention.
Implementation Method 1
A cyclone filter includes a body including a cylindrical surface extending between a first end and a second end. The body defines a cavity of the cyclone filter. An air inlet is formed through the cylindrical surface. The air inlet is configured to receive an airflow from a laundry cabinet and to direct the airflow along the cylindrical surface within the cavity. A vortex diverter extends within the cavity from the second end of the body. The vortex diverter is configured to interrupt the airflow as it passes within the cavity between the vortex diverter and the cylindrical surface to separate particulates from the airflow.
Implementation Method 2
The vortex diverter is configured to interrupt the airflow as it passes within the cavity between the vortex diverter and the cylindrical surface to separate particulates from the airflow
Data Source
AI summary
A cyclone filter includes a body including a cylindrical surface extending between a first end and a second end, and defining a cavity of the cyclone filter. An air inlet is formed through the cylindrical surface and is configured to receive airflow from a laundry cabinet and to direct the airflow along the cylindrical surface within the cavity. A vortex diverter extends within the cavity from the second end and is configured to interrupt airflow as it passes within the cavity between the diverter and the cylindrical surface to separate particulates from the airflow. A particulate outlet formed through the cylindrical surface and axially spaced from the air inlet is configured to direct particulates separated from the airflow toward a particulate receptacle.