Grease Filter Channel Segmentation to Reduce Pressure Drop and Noise
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Solution Overview
Problem
Conventional grease filters in ventilating systems face challenges in maintaining efficiency due to pressure drop and noise issues when air with oil particles passes through, and they are difficult to clean, leading to reduced performance over time.
Innovation Solution
The design incorporates a grease filter with alternating first and second guide units arranged at predetermined intervals, featuring stoppers and direction change guides to manage airflow and particle collection, allowing for improved oil collection efficiency while minimizing pressure drop and facilitating easy cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filter interrupts the flow of oil particles to collect them, then oil collection efficiency is improved, but pressure drop increases and energy efficiency degrades
Solution Approach 1:
The filter is divided into multiple channels (first channel, second channel, third channel) with alternating flow directions. This segmentation allows oil particles to be collected through multiple pathways while maintaining overall airflow, reducing the pressure drop compared to a single-channel design.
Solution Approach 2:
Different regions of the filter have specialized functions: inlet guides direct airflow, direction change guides create centrifugal force for oil particle separation, and outlets collect purified air. This local specialization optimizes oil collection in critical areas while maintaining efficient airflow through the overall structure.
2Reliability
If the filter interrupts the flow of oil particles to collect them, then oil collection efficiency is improved, but flow noise and vibration noise increase
Solution Approach 1:
The alternating channel configuration distributes oil particle interception across multiple channels rather than concentrating it in one location. This distributes the noise and vibration generation across the filter structure, reducing overall noise levels while maintaining collection efficiency.
3Reliability
If oil particles accumulate on the grease filter, then collection capacity increases, but cleaning difficulty increases and filter efficiency cannot be maintained
Solution Approach 1:
The filter is designed with separable channels that can be removed and cleaned individually. This segmentation allows accumulated oil to be easily removed from each channel without disassembling the entire filter assembly, maintaining cleaning ease while providing sufficient collection capacity through the multi-channel design.
4Reliability
If multiple guide units are arranged to improve oil collection, then collection efficiency increases, but device complexity increases
Solution Approach 1:
Multiple functions are merged into single components: the channel structures serve both as flow pathways and as oil collection surfaces, while the guides perform both flow direction control and oil particle separation. This merging reduces the number of separate components needed, lowering overall device complexity while maintaining high collection 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
This configuration enhances oil collection efficiency, reduces pressure drop and noise, and allows for continuous maintenance of filter performance by preventing excessive separation of components, thus improving the overall efficiency and durability of the grease filter.
Implementation Method 1
a first channel having a first guide unit formed in a first direction that is a longitudinal direction, and a second channel having a second guide unit formed in a second direction perpendicular to the first direction to form a path with the first guide unit
Implementation Method 2
To effectively collect the oil particles, the oil particles should flow and collide to a filter present in the flow field while flowing so that the flow of the oil particles is interrupted by the filter. As a result, the fine particles should lump with each other to be collected.
Data Source
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AI summary
A grease filter, which includes a first channel having an inlet portion through which oil particles flow in, and a first guide unit configured to guide the oil particles flowing in through the inlet portion, and a second channel having an outlet portion through which the oil particles and air current flowing in through the inlet portion is discharged into the outside, and at least one second guide unit configured to guide the oil particles and air current to be discharged through the outlet portion. Here, the first channel and the second channel are detachably provided. The grease filter can be easily repaired and maintained, and collection efficiency can be improved due to such a configuration.