Countercurrent Injection Fluid Mixer for Beverage Blending
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Solution Overview
Problem
Conventional beverage blending systems suffer from inadequate mixing of syrup and liquid within the mixing chamber, leading to imbalanced ratios and potential syrup slugs, which require additional equipment like averaging tanks for correction and are prone to leakage issues.
Innovation Solution
A blending system utilizing countercurrent injection, where a stream of beverage syrup is injected into a stream of liquid in a direction opposing its flow within a mixing chamber, creating turbulent flow and dispersion, and employing check valves to control flow and prevent backflow and leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional blending systems use a mixing chamber followed by a static diffuser, then the beverage can be fully blended, but most mixing occurs at the diffuser rather than in the mixing chamber, resulting in syrup slugs and poor pre-diffuser distribution
Solution Approach 1:
The patent inverts the conventional flow arrangement by injecting the syrup stream into the liquid stream in opposition to the liquid flow direction, rather than simply mixing them in the same flow direction. This countercurrent injection creates immediate turbulent mixing in the mixing chamber, improving pre-diffuser distribution consistency without requiring additional complex equipment.
2Manufacturing precision
If pump control with nipple valves is used to regulate syrup and liquid flow, then flow rates can be controlled, but syrup leakage into the mixing chamber occurs at the end of dispensing cycles, disturbing the syrup-liquid ratio
Solution Approach 1:
The patent introduces check valves as intermediary components in the syrup and liquid supply conduits. These check valves prevent backflow and leakage of syrup into the mixing chamber at the end of dispensing cycles, ensuring reliable flow control and maintaining consistent syrup-liquid ratios without compromising the pumping system's functionality.
3Manufacturing precision
If an averaging tank is added to correct syrup-liquid ratio imbalances, then ratio consistency can be improved, but additional equipment installation, maintenance, and process steps are required
Solution Approach 1:
The patent performs preliminary mixing action within the mixing chamber itself through countercurrent injection, creating turbulent flow that thoroughly mixes syrup and liquid before they reach the static diffuser. This preliminary mixing eliminates the need for subsequent ratio correction using averaging tanks, reducing equipment complexity while maintaining ratio consistency.
4Manufacturing precision
If countercurrent injection is used to improve dispersion and blending, then pre-diffuser distribution consistency is enhanced, but the mixing chamber design becomes more complex
Solution Approach 1:
The patent segments the mixing chamber into distinct functional zones: a mixing chamber for countercurrent injection and turbulent mixing, and a static diffuser for final blending. This segmentation allows each zone to perform its specific function efficiently, achieving superior pre-diffuser distribution consistency while keeping the overall design manageable through clear functional separation.
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 approach enhances pre-diffuser distribution consistency, reduces syrup slugs, eliminates the need for averaging tanks, and provides precise control over syrup and liquid ratios, resulting in a more efficient and balanced blending process.
Implementation Method 1
As the second fluid exits the countercurrent injection nozzle, the second fluid collides with the first fluid and causes turbulent flow of the two fluid components within the mixing chamber
Implementation Method 2
This collision and turbulent flow causes immediate dispersion of the second fluid and, ultimately, distribution of particles of the second fluid within the first fluid
Data Source
AI summary
A method and apparatus for mixing fluids, such as beverage syrup and water, uses countercurrent injection to improve blending of the fluids. A mixing chamber has a first inlet through which a first fluid is fed to the mixing chamber, and a second inlet through which a countercurrent injection nozzle extends and is operative to inject a second fluid into a stream of the first fluid. The countercurrent injection nozzle is equipped with a check valve to control the flow of fluid into the mixing chamber. The mixing chamber may include additional inlets that may be fitted with countercurrent injection nozzles to permit the countercurrent injection of other fluid, such as flavorings, into the stream of the first fluid.