Venturi Apparatus Sidearm Mixing for High-Pressure Fluids
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Solution Overview
Problem
Conventional venturi devices face limitations in effectively drawing and mixing a second fluid with a primary fluid due to the constriction point's limited size, which restricts the area for fluid introduction and increases the difficulty of mixing, especially when the primary fluid is under high pressure.
Innovation Solution
The improved venturi apparatus features a frusto-conical funnel section for accelerating fluid velocity, followed by a cylindrical section to normalize flow, an expanded intermediate passageway for pressure reduction, and sidearm passageways for introducing additional fluids at the medial portion, allowing for enhanced mixing and homogeneity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If the venturi constriction point is made smaller to increase fluid velocity and vacuum pressure, then the ability to draw in a second fluid is improved, but the area into which the second fluid can be drawn is reduced
Solution Approach 1:
The patent introduces a sidearm passageway that connects to the expanded intermediate passageway, creating a new dimensional pathway for the second fluid to enter. This sidearm allows the second fluid to be drawn in from a direction and location that is not constrained by the limited area at the constriction point, effectively adding another dimension to the fluid introduction process.
Solution Approach 2:
The expanded intermediate passageway serves as an intermediary chamber between the constriction point and the mixing section. This intermediate space allows the second fluid to be introduced via the sidearm and then properly mixed with the first fluid, mediating the interaction between the two fluids in a controlled manner that overcomes the area limitation at the constriction point.
2Area of stationary object
If the venturi tapered portion is made larger to increase the area for drawing in the second fluid, then the area for fluid introduction is improved, but the fluid velocity and vacuum pressure are reduced
Solution Approach 1:
The patent divides the venturi apparatus into distinct functional sections: a constriction point for generating vacuum, an expanded intermediate passageway for fluid introduction, and a mixing section for combining fluids. This segmentation allows each section to be optimized for its specific function - the constriction point maintains high velocity while the expanded intermediate passageway provides large area for fluid introduction without compromising the velocity generation.
Solution Approach 2:
By introducing the sidearm passageway that connects to the expanded intermediate passageway, the patent creates a separate pathway for the second fluid to enter. This dimensional change allows the second fluid to be drawn in at a location with larger area (the expanded intermediate passageway) rather than at the constriction point, thereby decoupling the area requirement from the velocity generation requirement.
3Ease of operation
If the second fluid is forcibly introduced under pressure to overcome high pressure and velocity effects, then the ability to introduce the second fluid is improved, but the device complexity and cost increase
Solution Approach 1:
The patent designs the apparatus to utilize the flow dynamics of the first fluid itself to draw in the second fluid through the sidearm passageway. The vacuum pressure generated by the constriction point automatically creates the suction needed to introduce the second fluid, eliminating the need for external pressure sources or complex control mechanisms. The system essentially serves itself by using its own operational characteristics to achieve fluid introduction.
Solution Approach 2:
The patent employs pneumatic principles by utilizing pressure differentials and vacuum effects to achieve fluid introduction. The constriction point creates a vacuum that draws in the second fluid through the sidearm passageway, using pneumatic forces rather than mechanical pressure sources. This approach maintains simplicity while effectively overcoming the high pressure and velocity effects in the main flow.
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 design enables a more homogeneous mixture of fluids by increasing the volume of the second fluid drawn into the flow, improving mixing efficiency and applicability across various fluid combinations, including liquids and gases, and is suitable for both low and high pressurized flows.
Implementation Method 1
When a fluid, such as a gas or liquid, is passed through the venturi, the fluid's velocity of flow is caused to increase whereas the fluid's pressure is correspondingly caused to decrease
Implementation Method 2
the intermediate passageway is operative to cause the fluid received from the first cylindrical section to experience a slight decrease in pressure
Data Source
AI summary
An improved venturi apparatus for facilitating the mixture of fluid substances. The apparatus preferably comprises a first funnel section operative to receive a fluid and channel the same through a first cylindrical section or passageway. The first cylindrical section is fluidly connected to an intermediate passageway having a diameter larger than the first cylindrical section. At least one sidearm passageway is fluidly connected to the intermediate passageway into which at least one second fluid is introduced. The at least one sidearm passageway is preferably configured to fluidly interconnect with the intermediate passageway at approximately the medial portion of the intermediate passageway. Fluidly connected to the intermediate passageway is a second cylindrical section that is operative to direct the flow of the intermixed fluids to a second exit funnel section. The improved venturi apparatus is exceptionally efficient at drawing in a second fluid and effective in facilitating the mixture of two or more gasses, liquids or combinations thereof.


