Liquid dispensing system, liquid flow control assembly and liquid dispenser for dispensing liquid at different temperatures
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Solution Overview
Problem
Conventional liquid dispensers are limited in providing hot water at optimal temperatures for brewing coffee, which increases the risk of scalding, and often restrict the temperature to below the ideal range of 195° F to 205° F, while also failing to efficiently dispense hot and cold water at different temperatures from a single storage device.
Innovation Solution
A liquid dispensing system with a manifold connected to a single hot water tank, utilizing the venturi effect to mix water from the upper and lower portions of the tank, allowing for the dispensing of hot water at a lower temperature and flavored beverages at an optimal elevated temperature, thereby addressing the temperature limitations and safety concerns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If hot water is dispensed at optimal elevated temperature (195-205°F) for brewing coffee, then brewing quality is improved, but scalding hazard increases
Solution Approach 1:
The hot water tank is divided into two distinct dispensing outlets: a first outlet for dispensing hot water at a lower temperature (below 185°F) and a second outlet for dispensing water at an optimal elevated temperature (195-205°F). This segmentation allows the system to provide different temperature options from the same water source, enabling users to choose between safety and brewing quality.
Solution Approach 2:
Different temperature qualities are provided at different dispensing locations. The first dispensing outlet provides lower temperature water suitable for general use and children, while the second outlet provides higher temperature water optimized for coffee brewing. This local differentiation of temperature quality resolves the contradiction by providing context-appropriate temperatures.
2Object-affected harmful factors
If hot water temperature is limited to below 185°F to reduce scalding risk, then safety is improved, but coffee brewing quality deteriorates
Solution Approach 1:
The system segments the hot water dispensing function into two separate outlets with different temperature characteristics. This allows the system to maintain lower temperature (below 185°F) at the first outlet for safety while providing optimal elevated temperature (195-205°F) at the second outlet for brewing quality.
Solution Approach 2:
The single hot water tank serves multiple functions through its two dispensing outlets: it provides both safe-temperature water for general use and optimal-temperature water for coffee brewing. This multi-functionality resolves the contradiction by making the water heating system serve both safety and quality requirements.
3Device complexity
If a single hot water tank is used to dispense both hot and cold water, then device complexity is reduced, but temperature control capability deteriorates
Solution Approach 1:
The single hot water tank is designed to perform multiple functions: storing hot water for dispensing at different temperatures and storing cold water for dispensing. By incorporating multiple dispensing outlets with different temperature capabilities from a single storage device, the system achieves temperature differentiation without increasing device complexity.
Solution Approach 2:
The single hot water tank is segmented into multiple dispensing pathways: one pathway leads to a first outlet for lower temperature dispensing and another pathway leads to a second outlet for elevated temperature dispensing. This segmentation of the dispensing function from a unified storage device maintains simplicity while enabling temperature control capability.
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 reduces the temperature of hot water dispensed to a safer range while maintaining the optimal brewing temperature for flavored beverages, enhancing user safety and operational efficiency.
Implementation Method 1
A liquid dispensing system with a manifold connected to a single hot water tank, utilizing the venturi effect to mix water from the upper and lower portions of the tank
Data Source
AI summary
A liquid dispensing system, a liquid flow control assembly or member and a liquid dispenser. Preferably, the liquid dispensing system includes a single hot water tank. A liquid flow control assembly operably connected to the hot water tank is configured to direct only water from an upper portion of the hot water tank to a flavored beverage brewer (e.g., coffee or tea brewer) so that the flavored beverage is at an optimal elevated temperature when dispensed. The liquid flow control assembly or member is further configured to mix water from an upper portion of the hot water tank with water from a lower portion of the hot water tank and provide the water mixture to a hot water dispensing nozzle or outlet of the liquid dispenser to reduce the temperature of the water directed to the hot water dispensing nozzle or outlet.