Valve Assembly with Remote Solenoid Control and Flow Safety
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Solution Overview
Problem
Commercial kitchens face challenges in ensuring proper water mixing and conservation during rinse cycles, as personnel must monitor water flow to maintain a mixture of hot and cold water, leading to waste and safety risks, especially when not present at the sink.
Innovation Solution
A valve assembly that automatically controls the flow of hot and cold water in a commercial sink, allowing remote operation and ensuring a consistent water volume by using solenoid valves and an electronic control module, with a safety feature to prevent hot water flow if cold water is interrupted, and a manual override for reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If manual monitoring of water flow is used to maintain proper hot and cold water mixture, then water mixing quality is improved, but labor cost and operational complexity increase
Solution Approach 1:
The valve assembly automatically monitors and regulates water flow without requiring manual intervention. The system self-adjusts the mixture of hot and cold water based on preset parameters, eliminating the need for continuous manual monitoring while maintaining consistent water quality.
Solution Approach 2:
Manual mechanical monitoring and adjustment is replaced with an automated electronic control system that uses sensors and programmable logic to regulate water flow, transitioning from mechanical/manual operation to automated electronic control.
2Loss of substance
If personnel monitor water flow at the sink, then water waste is reduced, but productivity and operational efficiency decrease
Solution Approach 1:
The system autonomously controls water delivery timing and duration without requiring personnel presence at the sink. Staff can initiate rinse cycles and return to food preparation tasks, maintaining water conservation while maximizing kitchen productivity.
Solution Approach 2:
The control module monitors water flow conditions and automatically adjusts valve operation to prevent waste, providing continuous feedback control that eliminates the need for manual supervision while optimizing water usage.
3Productivity
If remote operation is implemented, then productivity and operational efficiency are improved, but control precision and monitoring capability deteriorate
Solution Approach 1:
Manual visual monitoring and tactile control is replaced with electronic sensors and automated control algorithms that precisely measure and regulate water flow parameters, achieving superior control precision while enabling remote operation.
Solution Approach 2:
Electronic sensors and control modules serve as intermediaries between the operator and the water flow system, translating remote commands into precise valve actuation while providing automated feedback on flow conditions.
4Loss of substance
If automatic valve control is used, then water conservation is improved, but system complexity and initial cost increase
Solution Approach 1:
The valve assembly integrates multiple functions including flow monitoring, automated valve control, timing management, and safety interlocks into a single multi-functional unit, achieving water conservation without proportionally increasing overall system complexity.
Solution Approach 2:
The control module combines timing functions, flow monitoring, and valve actuation control into an integrated system that manages multiple aspects of water delivery through a unified control architecture, reducing the complexity burden of individual components.
5Speed
If hot water flow is allowed without cold water verification, then water delivery speed is improved, but safety risks increase
Solution Approach 1:
The system performs preliminary verification that cold water flow is established before permitting hot water flow to proceed. This preventive safety interlock eliminates the risk of hot water delivery without cold water verification while maintaining efficient water delivery through automated sequencing.
Solution Approach 2:
The control module continuously monitors cold water flow conditions and uses this feedback to control hot water valve actuation, ensuring safety requirements are met while optimizing water delivery timing and speed.
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 valve assembly reduces water waste, ensures consistent water delivery, and enhances safety by allowing remote operation, maintaining proper water mixing without manual supervision, while ensuring water conservation and safety through controlled flow management.
Implementation Method 1
a first solenoid valve in communication with the cold water outlet for controlling the flow of water therefrom and a second solenoid valve in communication with the hot water outlet for controlling the flow of water therefrom
Data Source
AI summary
The valve assembly employs a remotely located button to open normally closed solenoid valves in the cold water line and hot water line via an electronic control module. In response to a second signal from the button, the control module causes the solenoid valves to close. A metering valve senses the flow rate of cold water and issues a signal in response to the flow rate being below a minimum flow rate to the control module to close the solenoid valves to block further delivery of water.