Modular Venturi Eductor with Adjustable Vacuum Profile
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Solution Overview
Problem
Existing non-air gap eductors require a complete redesign to change the vacuum profile, making them inflexible and costly to modify or retrofit.
Innovation Solution
The eductor design includes a body member with a flow path defined by first and second flow guides, a venturi tube, and a passage with a modifiable opening to create a desired vacuum profile, allowing for adjustment without redesigning the entire unit, and features a closed backflow prevention mechanism and check valves to ensure efficient mixing of chemical concentrates with a diluting liquid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a complete redesign of the venturi is performed to change the vacuum profile, then the vacuum profile can be optimized, but the device complexity and manufacturing cost increase significantly
Solution Approach 1:
The venturi is divided into multiple segments including a body portion, a throat portion, and an exit portion, allowing independent modification of each segment to adjust the vacuum profile without redesigning the entire device
Solution Approach 2:
The venturi includes adjustable components such as movable flow guides and variable geometry elements that allow dynamic adjustment of the vacuum profile during operation, providing flexibility without permanent redesign
2Manufacturing precision
If a complete redesign of the venturi is performed to change the vacuum profile, then the vacuum profile can be optimized, but the manufacturing cost increases
Solution Approach 1:
The venturi is segmented into modular components that can be manufactured separately using standard processes and assembled, reducing overall manufacturing cost while maintaining precise vacuum profile control
Solution Approach 2:
The design allows adjustment of vacuum profile parameters through simple geometric modifications or interchangeable inserts rather than complete redesign, maintaining cost-effectiveness
3Manufacturing precision
If the entire venturi is redesigned to adjust the vacuum profile, then the desired vacuum can be achieved, but the retrofitting difficulty and time increase
Solution Approach 1:
The modular segmented design allows specific portions of the venturi to be replaced or adjusted independently, enabling easy retrofitting of vacuum profile modifications without replacing the entire device
Solution Approach 2:
The venturi design incorporates universal mounting interfaces and standardized connection points that allow the same base structure to accommodate different vacuum profile configurations through interchangeable components
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
Enables flexible adjustment of vacuum profiles without redesigning the entire eductor, facilitating easy retrofitting and cost-effective manufacturing while ensuring effective backflow prevention and efficient mixing of chemical concentrates with a diluting liquid.
Implementation Method 1
a venturi tube positioned in the flow path for receiving liquid from the second flow guide wherein there is an opening in the passage constructed and arranged to produce a desired vacuum in the venturi tube
Implementation Method 2
A venturi tube is positioned in the flow path for receiving liquid from the second flow guide
Implementation Method 3
A closed back flow prevention member is operatively associated with the first flow guide
Data Source
AI summary
An eductor for mixing two liquids wherein the eductor includes a closed or non-air gap back flow prevention member. The vacuum profile of the eductor is altered by changing an opening in a passage portion to controllably divert water flow around the venturi tube or diverting the water without the opening. This affords the changing of the vacuum profile without redesigning the entire eductor.