Liquid Bath Air Filter With Laminar Flow and Tilted Liquid Retention
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Solution Overview
Problem
Existing liquid bath air filters, such as oil bath filters, lack improvements in filtration efficiency and reusability, particularly in industrial settings, and are not designed for use as respirators, which require effective filtration and retention of liquid during movement.
Innovation Solution
A liquid bath air filter with a flow laminator that aligns air streamlines to achieve laminar flow, entraining particulates in the liquid for filtration, and includes a buffer assembly to retain liquid during tilting or overturning, with components designed for easy cleaning and connection to CPAP masks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a liquid bath air filter is used for high-capacity filtration, then filtration efficiency is improved, but the liquid is lost during tilting or overturning
Solution Approach 1:
The filter is divided into three distinct chambers: an upper chamber for liquid storage, a middle chamber for filtration, and a lower chamber for liquid collection. This segmentation allows the liquid to be retained in the upper chamber while air filtration occurs in the middle chamber, preventing liquid loss during tilting or overturning while maintaining high-capacity filtration efficiency.
2Quantity of substance
If a water bath air filter is designed for industrial settings, then filtration capacity is improved, but adaptability to respirator use is reduced
Solution Approach 1:
The filter design incorporates features suitable for both industrial and personal use. The high-capacity three-chamber structure provides industrial-grade filtration, while the connection interface is designed to attach to CPAP masks and other respirators. This multi-functionality allows the same device to serve both industrial settings and personal respiratory protection needs.
3Reliability
If a flow laminator is added to achieve laminar flow, then filtration efficiency is improved, but device complexity increases
Solution Approach 1:
The flow laminator utilizes pneumatic principles to generate laminar flow of air through the liquid in the middle chamber. By controlling the air flow dynamics and pressure differentials, the system achieves efficient particulate capture without requiring complex mechanical components. The laminar flow is created through the interaction of air and liquid phases, leveraging fluid dynamics rather than mechanical complexity.
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 filter achieves high-capacity, durable, and efficient air filtration with laminar flow, retaining liquid for reuse and easy maintenance, suitable for respirator use with effective filtration even during user movement.
Implementation Method 1
a flow laminator configured to: receive air from the air inlet passage; be submerged in the liquid present in the filtrate chamber when the apparatus is in an upright position; reduce a Reynold's number of a flow of the air therethrough; and eject the flow into the liquid in the filtrate chamber
Implementation Method 2
The flow laminator ejects the aligned flow of air into a liquid bath and a mixing of the air and the liquid bath entrains particulates in the liquid bath, thereby filtering the air
Implementation Method 3
When in an upside-down position, the liquid is retained in the upper portion and the flow circuit remains open
Data Source
AI summary
A liquid bath air filter (100), including: an air inlet tube (102) that defines an air inlet passage (108); a filtrate chamber body (120) that defines a filtrate chamber (142) configured to hold a liquid in a bottom thereof; and a flow laminator (150) configured to: receive air from the air inlet passage; be submerged in the liquid present in the filtrate chamber when the apparatus is in an upright position; reduce a Reynold's number of a flow of the air therethrough; and eject the flow into the liquid in the filtrate chamber.