Liquid Aspirator Rotor Separation for Leak-Free Suction
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Solution Overview
Problem
Existing liquid suction devices face issues with separating liquids from air effectively, leading to potential liquid escape during operation, especially when the device is rotated or used in unfavorable positions, resulting in inefficient liquid collection and potential leakage.
Innovation Solution
The device incorporates a flow deflection mechanism on the air inlet side, combined with a flow labyrinth in front of the exhaust air duct, directing the liquid/air mixture radially into the tank, where a separating device, either stationary or rotating, separates the liquid from the air, ensuring it collects in the tank without leaking into the exhaust duct.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate tank with non-return valves is used to prevent liquid escape during rotation, then liquid retention reliability is improved, but device complexity and construction volume increase
Solution Approach 1:
The patent combines the separating space and tank into a single integrated chamber. The separating device is arranged within this combined space, eliminating the need for separate tanks and complex non-return valve mechanisms. This merging approach maintains liquid retention reliability while significantly reducing device complexity and construction volume.
Solution Approach 2:
The patent extracts and eliminates the non-return valve mechanism from the design. Instead of using mechanical valves to prevent liquid escape during rotation, the invention relies on the centrifugal separation effect and proper positioning of the exhaust air duct opening to achieve liquid retention without additional moving parts or complex components.
2Quantity of substance
If intermediate reservoirs are used for liquid collection, then liquid separation capacity is improved, but device complexity and construction volume increase
Solution Approach 1:
The patent merges the intermediate reservoir function directly into the main separating space. The separating device deflects liquid into the separating space where it accumulates and can be emptied, eliminating the need for separate intermediate reservoirs. This integration maintains liquid collection capacity while reducing device complexity.
3Productivity
If the separating device is positioned to allow liquid flow into intermediate reservoirs, then liquid separation efficiency is improved, but liquid retention during rotation deteriorates
Solution Approach 1:
The patent positions the opening of the exhaust air duct at a specific height and location within the separating space, utilizing vertical positioning to prevent liquid escape during rotation. The separating device deflects liquid into the separating space, and the exhaust duct opening is positioned above the maximum liquid level, creating a height-based retention mechanism that works in all device orientations without compromising separation efficiency.
4Reliability
If a flow labyrinth is added to retain spray water, then liquid retention reliability is improved, but energy consumption increases due to additional resistance
Solution Approach 1:
The patent applies flow deflection and retention principles locally at the exhaust air duct opening rather than throughout the entire flow path. By positioning the exhaust duct opening at an appropriate height and using the separating device to control liquid flow, the system achieves liquid retention without adding flow labyrinths or other resistance-inducing structures throughout the system, thus minimizing energy consumption.
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 allows for efficient separation and collection of liquids from air without the need for intermediate storage, maintaining the liquid in the tank across various device orientations, preventing leakage and optimizing energy consumption by minimizing resistance.
Implementation Method 1
the flow deflection on the air inlet side before the intake of the sucked-in air/liquid flow is arranged in the tank at the intake port or in the tank and deflects the sucked air/liquid flow radially outwards into the tank
Implementation Method 2
a flow labyrinth arranged in front of the entry into the exhaust air duct as a retaining means for spray water
Implementation Method 3
a separating device arranged in the separating space for separating the liquid from the air
Implementation Method 4
the suction device having a motor for driving a suction unit which generates the suction vacuum
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
Liquid aspirator for drawing off and sucking up liquids, having a drawing-off lip (7), having a suction device for sucking up the liquid into a separating space (8) in the housing (1) of the liquid aspirator, having an exhaust-air channel (3), which is subjected to a negative suction pressure and is intended for leading the air out of the separating space (8), having a separating device (13), which is arranged in the separating space (8) and separates the liquid from the water, and having a tank for accommodating the liquid. Complex guidance of the liquid/air stream is avoided in that the housing (1) has a hollow chamber (2) which forms the separating space (8) and the tank, and into which the intake channel (4) opens and from which the exhaust-air channel (3) is guided out of the housing (1); wherein the hollow chamber (2) contains a motor-driven rotor (6) with a rotating impact surface, and the intake channel (4) is designed such that the air/liquid stream is directed for radial direction reversal and acceleration onto the impact surface.