Vortex Gas-Liquid Separator With Low Differential Pressure
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Solution Overview
Problem
Existing gas-liquid separators in fuel cell vehicles fail to effectively capture droplets while minimizing differential pressure and energy efficiency, leading to potential contamination and safety hazards.
Innovation Solution
A gas-liquid separator with a vortex generation member and variable pressure flow path that generates a vortex to separate droplets, minimizing differential pressure and energy loss by adjusting air pressure through a centrifugal force without additional structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional gas-liquid separator is used to remove droplets from air, then droplet capture performance is improved, but differential pressure increases and energy efficiency deteriorates
Solution Approach 1:
The separator is divided into distinct functional zones: a vortex generation region with a vortex generation member that creates rotational flow for droplet separation, and a variable pressure flow path region that gradually increases pressure. This segmentation allows droplet capture and pressure management to occur in separate optimized zones, maintaining separation efficiency while controlling differential pressure.
Solution Approach 2:
The flow path is designed with variable cross-sectional area that gradually increases from inlet to outlet, creating a dynamic pressure gradient. This dynamic expansion allows the air flow to accelerate in the vortex region for effective droplet separation, then gradually decelerate and increase pressure in the expansion region, reducing energy loss while maintaining separation performance.
2Volume of moving object
If the separator is miniaturized to reduce vehicle space, then spatial utilization is improved, but differential pressure increases and energy efficiency worsens
Solution Approach 1:
The vortex generation member is positioned coaxially within the housing, with the variable pressure flow path arranged around it. This nested configuration allows the flow path to utilize the space between the vortex generation member and the housing wall, maximizing spatial utilization while maintaining sufficient flow path length for pressure management in a compact overall structure.
Solution Approach 2:
The flow path cross-sectional area is varied in the radial dimension, expanding from the inner vortex region toward the outer housing wall. This dimensional variation allows the compact separator to provide gradual pressure increase through radial expansion rather than requiring extended axial length, achieving miniaturization while controlling differential pressure.
3Reliability
If additional structures are added to improve droplet separation, then separation performance is improved, but device complexity increases
Solution Approach 1:
The vortex generation member serves dual functions: it generates the vortex flow necessary for droplet separation while also defining the variable pressure flow path through its geometric configuration. The housing structure simultaneously provides mechanical support, defines the flow path boundaries, and creates the pressure gradient through its internal geometry. This multi-functionality reduces the number of separate components needed.
Solution Approach 2:
The vortex generation region and pressure management region are merged into a single integrated flow path without requiring separate components or interfaces. The transition from vortex generation to pressure increase occurs continuously within the same housing space, eliminating the need for additional connecting structures or intermediate components that would increase 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
Effectively captures droplets, reduces contamination and safety risks, and minimizes energy consumption by stabilizing pressure and reducing the size of the separator.
Implementation Method 1
a vortex generation member (120) provided in the housing member (110) and configured to generate a vortex in the air introduced into the housing member (110)
Implementation Method 2
separate droplets, minimizing differential pressure and energy loss by adjusting air pressure through a centrifugal force
Data Source
AI summary
The present disclosure relates to a gas-liquid separator including a housing member having an inlet port through which air is introduced, and a discharge port through which the air is discharged. A vortex generation member is provided in the housing member and is configured to generate a vortex in the air introduced into the housing member so that droplets contained in the air come into contact with an inner surface of the housing member. A variable pressure flow path is provided in the housing member as well, and is configured to guide the flow of air, from which the droplets are separated, to the discharge port and change pressure of the air from an inlet toward an outlet thereof, thereby obtaining an advantageous effect of ensuring efficiency in capturing droplets and minimizing an increase in differential pressure.