Iced Tea Dispenser Mixing Chamber for Uniform Hot-Cold Blending
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Solution Overview
Problem
Conventional beverage forming and dispensing systems from concentrate face issues such as inadequate mixing of hot and cold water, leading to stratification, and are prone to bacterial growth, high maintenance costs, and do not replicate the taste and quality of freshly brewed beverages.
Innovation Solution
A post-mix beverage dispensing system that instantaneously mixes tea concentrate with hot and cold water, using a solenoid-operated valve system to maintain a predetermined flow ratio and temperature, while resembling a traditional leaf tea brewer, incorporating a hot water heater with air removal mechanisms to ensure uniform flow and prevent bacterial growth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If cold water is supplied to the reservoir after hot concentrate begins to flow, then the mixing process is simplified, but the cold water and hot concentrate stratify and do not mix sufficiently
Solution Approach 1:
The mixing chamber is segmented into multiple zones with different flow patterns. The concentrate inlet introduces hot concentrate at one location while cold water enters at different locations, creating distinct flow regions that progressively mix. This segmentation prevents immediate stratification while maintaining a relatively simple device structure.
Solution Approach 2:
The patent introduces a vertical dimension to the mixing process by positioning inlets at different heights and depths within the mixing chamber. Hot concentrate enters from the top while cold water enters from lower regions, creating vertical convection currents that enhance mixing without requiring complex mechanical agitators.
2Ease of operation
If leaf tea brewing urn is used, then traditional brewing process is maintained, but cleaning and operation costs are high and bacterial growth occurs
Solution Approach 1:
The patent replaces the mechanical leaf tea brewing process with a fluid dynamics-based mixing system. Instead of using physical tea leaves and prolonged steeping, the system uses controlled fluid flow patterns to mix concentrate with water, achieving similar sensory results without the bacterial growth risks associated with organic material retention.
Solution Approach 2:
The patent extracts only the essential functional outcome of traditional brewing (the mixed beverage product) while removing the problematic elements (tea leaves, prolonged residence time, organic matter). The concentrate formulation captures the flavor profile of brewed tea, allowing the system to eliminate the brewing step entirely.
3Productivity
If concentrate is brewed and then mixed with cold water, then the brewing process is eliminated, but the mixing is insufficient and stratification occurs
Solution Approach 1:
The patent employs dynamic flow patterns within the mixing chamber, utilizing varying flow velocities and directions. The system creates turbulent mixing zones where hot and cold fluids continuously interact and redistribute, preventing stratification while maintaining rapid mixing suitable for high-speed beverage preparation.
Solution Approach 2:
The patent utilizes hydraulic principles to enhance mixing, employing pressure-driven flow patterns and possibly gas injection (aeration) to create vigorous mixing action. The hydraulic design of the mixing chamber promotes efficient fluid interaction between concentrate and water without requiring additional mechanical energy input.
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 system effectively mixes beverage components, maintaining a consistent flavor and quality similar to freshly brewed tea, reduces maintenance and operational costs, and prevents bacterial growth, while appearing as a traditional brewing urn.
Implementation Method 1
a hot water heater with air removal mechanisms
Implementation Method 2
using a solenoid-operated valve system to maintain a predetermined flow ratio
Implementation Method 3
hot water heater with air removal mechanisms to ensure uniform flow
Data Source
AI summary
A beverage dispensing apparatus includes a mixing chamber for mixing hot water, a beverage concentrate and cold water, as well as one or more additives. The hot water and cold water are supplied at a predetermined flow rate at a predetermined proportion, regardless of the pressure of the water supply. A water heater supplies the hot water within a specified pressure range and without significant entrapped air.