Closed Nebulizing System Bubble Evacuation
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Solution Overview
Problem
Conventional actuated nebulizers are limited by their reliance on gravity for nebulization direction, leading to unstable nebulization due to bubble formation and nozzle blockages, which restricts their application and efficiency.
Innovation Solution
A closed nebulizing system is developed, incorporating a first pump, a nebulizing module, and a second pump in series to form a closed fluid loop, ensuring continuous fluid contact with nozzles and evacuation of bubbles, allowing nebulization in various directions and improving stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional actuated nebulizer relies on gravity to make fluid flow and contact nozzles, then the structure is simple, but the nebulizing direction is limited and bubbles accumulate causing unstable nebulization
Solution Approach 1:
The patent extracts the harmful element (bubbles) from the system by providing a dedicated bubble removal channel that separates bubbles from the fluid circulation path. This allows the main nebulization system to operate without bubble interference while the extracted bubbles are evacuated separately, resolving the contradiction between nebulization stability and system complexity.
Solution Approach 2:
The patent applies hydraulic principles by using a pump to create controlled fluid circulation through the nebulization system. The pump-driven fluid flow replaces gravity-dependent flow, enabling stable nebulization in various orientations and allowing active management of fluid dynamics to prevent bubble accumulation, thus improving reliability without excessive complexity.
2Reliability
If the receiving chamber is deep or nozzle diameters are big, then the structure is simpler to manufacture, but fluid accumulates on nozzle surfaces causing blockages and poor nebulization
Solution Approach 1:
The patent implements continuous fluid circulation through the nebulization system using a pump. This continuous flow prevents fluid accumulation on nozzle surfaces by constantly renewing the fluid contact, eliminating blockage risks without requiring complex nozzle geometries or shallow chambers, thus maintaining ease of manufacture while improving reliability.
Solution Approach 2:
The patent extracts accumulated fluid and bubbles from the receiving chamber through a dedicated removal channel. This active extraction prevents fluid buildup on nozzle surfaces that would cause blockages, allowing the use of simpler, easier-to-manufacture chamber and nozzle structures without compromising nozzle performance.
3Reliability
If air enters the cavity structure through nozzles during nebulization, then the system operates in open environment, but bubbles form in the receiving chamber causing unstable nebulization
Solution Approach 1:
The patent uses pump-driven hydraulic circulation to create controlled fluid flow that overrides the destabilizing effect of bubble formation. The active fluid circulation system maintains consistent flow through the nozzles despite bubbles present in the receiving chamber, enabling stable nebulization in various orientations without restricting operational adaptability.
Solution Approach 2:
The patent provides a separate extraction pathway for bubbles from the receiving chamber, removing the harmful effect of air entrainment without requiring the system to operate in a sealed or orientation-specific manner. This allows the nebulizer to maintain stability while retaining versatility for operation in various directions.
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 closed system enables stable nebulization in any direction, prevents bubble accumulation, and maintains continuous fluid contact with nozzles, enhancing the nebulizing process and overcoming limitations of conventional actuated nebulizers.
Implementation Method 1
The porous material is disposed in the cavity structure for absorbing the fluid and enabling the fluid to continuously contact with the plurality of nozzles for nebulization
Implementation Method 2
The first pump, the nebulizing module and the second pump form a closed fluid loop, so that the fluid continuously contacts with the plurality of nozzles and bubbles generated during nebulization process are evacuated from the nebulizing module
Data Source
AI summary
A closed nebulizing system for removing bubbles includes a first pump, a nebulizing module and a second pump. The first pump is for providing a fluid. The nebulizing module includes an outlet channel, an inlet channel connected with the first pump, and a plurality of nozzles for nebulizing and ejecting part of the fluid. The second pump is connected with the outlet channel for outputting non-nebulized fluid. The first pump, the nebulizing module and the second pump form a closed fluid loop, so that the fluid continuously contacts with the plurality of nozzles and bubbles generated during nebulization process are evacuated from the nebulizing module.