Filter regenerating apparatus
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Solution Overview
Problem
Existing air filters in air handling systems face inefficiencies due to inaccurate detection of optimal dust load levels, leading to premature replacement or continued operation beyond their effective range, which reduces airflow and allows dust particles to pass through, compromising system performance and health safety.
Innovation Solution
A filter regeneration apparatus with a housing, filter load measurement unit, control unit, movable door, and regeneration units (fans, vacuum, vibration, UV light, and chemical spraying) that measures light attenuation to determine optimal dust load and regenerates the filter in situ, maintaining efficiency and extending its lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the filter operates until significant blockage occurs, then the filter captures more dust particles, but the airflow is reduced and dust particles may dislodge into the clean air area
Solution Approach 1:
The system continuously monitors the filter's dust load using light attenuation measurement and provides feedback to the control unit. When the dust load reaches a predetermined threshold, the system automatically initiates regeneration by activating the door actuator to close the door and启动 the regeneration unit, thus maintaining optimal airflow while capturing maximum dust particles.
Solution Approach 2:
The filter system performs self-regeneration without external intervention. The control unit automatically detects when regeneration is needed based on light attenuation measurements and activates the regeneration unit to clean the filter in place, allowing the system to maintain optimal performance continuously.
2Ease of operation
If the filter is replaced or cleaned based on fixed time intervals, then maintenance is simplified, but the filter may be replaced prematurely or too late for effective operation
Solution Approach 1:
The system replaces manual time-based maintenance scheduling with an automated optical measurement system. The light source and light sensor continuously measure light attenuation through the filter, providing real-time data on dust load. This substitution eliminates the need for users to track time intervals and ensures maintenance occurs precisely when needed based on actual filter condition.
Solution Approach 2:
The control unit receives continuous feedback from the light sensor about the filter's dust load and automatically triggers regeneration when the threshold is reached, eliminating the need for manual monitoring and scheduling while optimizing system effectiveness.
3Quantity of substance
If the filter operates beyond optimal dust load, then the filter continues to capture dust particles, but the filter structure may dislodge captured debris into the clean air area
Solution Approach 1:
The light attenuation measurement system provides continuous feedback on the filter's dust load. When the predetermined threshold is approached, the system automatically initiates regeneration before the filter becomes overloaded and risks dislodging captured debris, thus preventing harmful contamination of the clean air area.
Solution Approach 2:
The system performs preliminary regeneration action before the filter reaches a critical state where debris dislodgement becomes likely. By monitoring light attenuation and triggering regeneration at the optimal moment, the system prevents the harmful effect of debris dislodgement before it can occur.
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 system maintains air filters in an efficient performance state by regenerating them when dust load exceeds optimal levels, enhancing airflow and reducing particle passage, thus improving system efficiency and extending filter life.
Implementation Method 1
measuring a light attenuation through the filter using the light source and the light sensor
Implementation Method 2
a vacuum pump that creates a negative pressure to extract the dust particles from the filter
Implementation Method 3
a fan that blows air through the filter to facilitate the extraction of the dust particles
Implementation Method 4
a vibration unit that vibrates the filter to loosen and dislodge the dust particles from the filter
Data Source
AI summary
The present invention provides a filter regenerating apparatus comprising a dust load measurement unit, a control unit, and a vacuum cleaning device. The control unit activates the load measurement unit to measure the dust load on the filter and activates the vacuum cleaning device to vacuum clean the filter if the measured quantity of dust load exceeds a threshold value. The load measurement unit measures the quantity of dust load again after the filter is cleaned. If the dust load is still not lowered below the threshold value, then the system sends a filter replacement message to a user device. The efficiency of an air filter is best when it is neither new nor too dirty. By vacuum cleaning the filter in situ and by selecting an appropriate load threshold value, the filter can be used not only for a longer period but also with highest efficiency.