Integrated Nanobubble Nozzle with Variable Flow Paths
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Solution Overview
Problem
Existing nanobubble generating nozzles require multiple nozzle parts in series, leading to increased length and complexity, and there is uncertainty about improving nanobubble generation efficiency when using liquids with impurities.
Innovation Solution
A nanobubble generating nozzle and generator configured with a single nozzle structure, utilizing a series of flow paths with varying cross-sectional areas to generate nanobubbles efficiently, including a turbulent flow forming part to enhance bubble formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple nozzle parts are connected in series to generate nanobubbles, then nanobubble generation function is achieved, but the overall length and device complexity increase
Solution Approach 1:
The patent combines multiple nozzle parts (first nozzle part with first flow path, second nozzle part with second flow path, and third nozzle part with third flow path) into a single integrated nozzle structure. These parts are arranged in series along the flow direction but merged into one component, achieving nanobubble generation functionality while reducing the overall length compared to connecting separate nozzles externally.
2Reliability
If multiple nozzle parts are connected in series to generate nanobubbles, then nanobubble generation function is achieved, but the device complexity increases
Solution Approach 1:
The patent integrates multiple flow paths (first, second, and third flow paths) with different cross-sectional area characteristics into a single nozzle body. This merging approach maintains the complex flow control needed for nanobubble generation while simplifying the overall device structure by eliminating the need for separate connected nozzle components.
Solution Approach 2:
The nozzle is divided into distinct functional parts (first nozzle part, second nozzle part, third nozzle part) with specific flow path characteristics arranged in series. Each part has optimized cross-sectional area changes for specific functions (pressurization, gas dissolution, release), allowing complex nanobubble generation through segmented functional zones within a unified structure.
3Quantity of substance
If flow path surface area is gradually decreased to pressurize liquid, then gas dissolution is enhanced, but the structure requires multiple parts in series
Solution Approach 1:
The flow path is segmented into three distinct parts with progressively changing cross-sectional area characteristics. The first flow path has a gradually decreasing surface area for pressurization, the second flow path has an enlarged section for gas dissolution, and the third flow path has a final decrease for release. This segmentation achieves enhanced gas dissolution while maintaining a single-integrated-structure advantage.
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 single-nozzle design allows for a compact structure that simplifies the generator and effectively generates nanobubbles, even in liquids with impurities, by pressurizing and dissolving gas into the liquid.
Implementation Method 1
the structure in which the surface area of the flow path gradually decreases pressurizes the liquid containing the gas, dissolving the gas into the liquid
Implementation Method 2
the structure in which the surface area of the flow path is enlarged releases the gas dissolved into the liquid by jetting the liquid containing the gas
Implementation Method 3
a turbulent flow forming part for making the flow of the mixed fluid into a turbulent flow is provided in at least one location between the flow paths
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
To provide a nanobubble generating nozzle that is compact and capable of generating nanobubbles with high efficiency. The problem is solved by a nanobubble generating nozzle (1) and a nanobubble generator (100) comprising this nanobubble generating nozzle (1). The nanobubble generating nozzle (1) comprises an introduction part (11) for introducing a mixed fluid of a liquid and a gas into an interior thereof, a jetting part (35) for feeding out the mixed fluid containing nanobubbles of the gas, and a nanobubble generating structure part (5) for generating nanobubbles of the gas, between the introduction part (11) and the jetting part (35). The nanobubble generating structure part (5) comprises a plurality of flow paths (15, 28, 36) having different cross-sectional areas through which the mixed fluid of the liquid and the gas is passed, in an axial direction of the nanobubble generating nozzle (1).