Liquid Control Apparatus Using Gas-Flow Grooves for Directional Spread
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Solution Overview
Problem
Existing liquid control apparatuses fail to effectively direct the spread of a liquid on a surface in a desired direction, as they rely on interface tension which does not provide sufficient control over the liquid's distribution.
Innovation Solution
A liquid control apparatus with a net-shaped body and strategically formed grooves and ports that control the spread of the liquid by introducing gas to inhibit its spread across certain areas, allowing for directional control and efficient discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a mesh is disposed on the upper surface of a heat storage plate to form fine protrusions and depressions, then the liquid can be spread over the upper surface by interface tension, but the liquid cannot be preferentially spread in the desired direction
Solution Approach 1:
The upper surface is segmented into multiple regions by forming grooves that divide the surface into distinct zones. These grooves create barriers that segment the liquid spread path, allowing control over which directions the liquid can spread into, thereby enabling preferential spreading in desired directions while maintaining overall spread coverage.
Solution Approach 2:
Different regions of the upper surface are given different properties through the groove structure. Areas with grooves have reduced interface tension effects (blocking liquid spread), while areas without grooves maintain full interface tension effects (allowing liquid spread). This local differentiation enables directional control by creating permissive and restrictive zones across the surface.
2Ease of operation
If grooves are formed in the supply surface to control liquid spread direction, then the liquid spread direction can be controlled, but the complexity of the device structure increases
Solution Approach 1:
Instead of modifying the entire surface structure or adding complex control mechanisms, the invention extracts and utilizes the natural interface tension phenomenon only in specific areas where grooves are not present. By removing the mesh/protrusion structure from certain regions (creating grooves), the system leverages the inherent physical properties of the liquid-surface interaction to achieve directional control without additional active components.
Solution Approach 2:
The groove structure passively controls liquid direction by utilizing the liquid's own interface tension properties. The liquid naturally avoids spreading into groove regions due to the lack of interface tension there, while being drawn into regions with mesh structures where interface tension is present. This self-directed behavior eliminates the need for external control mechanisms, reducing device complexity.
3Ease of operation
If gas is introduced into the first groove to prevent liquid spread, then the liquid can be effectively prevented from spreading across the groove, but the device complexity increases
Solution Approach 1:
Gas is introduced as an intermediary substance into the grooves to enhance the barrier effect. The gas fills the groove spaces and further prevents liquid from bridging across the grooves by occupying the available space and disrupting any potential liquid-groove interface formation. This intermediary gas phase reinforces the passive geometric barrier provided by the grooves themselves.
Solution Approach 2:
The invention utilizes pneumatic principles by introducing gas into the groove structures to control liquid behavior. The gas pressure and presence in the grooves create a pneumatic barrier that complements the geometric barrier, using fluid (gas) dynamics to enhance liquid containment and directional control without requiring mechanical moving parts.
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 apparatus enables preferential spreading of the liquid in the desired direction and enhances evaporation efficiency by using gas flow to manage the liquid's distribution and discharge.
Implementation Method 1
a plurality of interfaces are formed between the supply surface and the net-shaped body. Therefore, the liquid supplied to the supply surface is spread along the supply surface by the interface tension at the plurality of interfaces
Implementation Method 2
since the gas is introduced into the first groove from the inside of the main body through the introducing port, the gas flows through in a flow channel formed by the first groove and the net-shaped body. As a result, the liquid can be effectively prevented from spreading across the first groove by the gas that flows through inside the first groove and is jetted out from the openings of the net-shaped body
Data Source
AI summary
A liquid control apparatus 30 controls a spread mode of a liquid. The liquid control apparatus 30 includes a main body 31 having an upper surface 31c to which the liquid is supplied, and a mesh 47 woven in a net-like shape and provided to be in contact with the upper surface 31c. An inhibiting groove 41 is provided in the upper surface 31c in a portion that is in contact with the mesh 47. An introducing port 33b for introducing a gas from the inside of the main body 31 into the inhibiting groove 41 is provided in the main body 31. The introducing port 33b is formed such that the gas is introduced into the inhibiting groove 41 substantially parallel to the upper surface 31c.