Apparatus, method and system for calibrating a liquid dispensing system

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Solution Overview

Problem

Current calibration and auditing techniques for liquid dispensing systems are inefficient, requiring multiple iterations and exposing personnel to concentrated chemicals, and lack real-time monitoring capabilities to ensure accurate dilution ratios.

Innovation Solution

A system comprising flow meters with quick-connectors and sensors connected to a controller for real-time monitoring and data output, allowing for accurate calibration and auditing of liquid dispensing systems, including the use of pulse dampening means to minimize pressure pulses.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If traditional calibration methods using graduated collection devices and scales are used, then calibration can be performed, but the process requires significant time and resources

Engineering Contradiction:
Improvedilution ratio accuracyVSAvoidcalibration time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent replaces traditional mechanical calibration methods (graduated collection devices, scales, manual measurements) with electronic flow meters that automatically measure and communicate liquid flow data to a controller. This substitution of mechanical systems with electronic measurement systems enables real-time monitoring and significantly reduces calibration time while maintaining accuracy.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system performs self-calibration by using the flow meters to automatically measure and report liquid flow data to the controller, which then calculates and displays the dilution ratio. This eliminates the need for manual calibration procedures and reduces dependency on operator intervention, thereby reducing calibration time and resource requirements.

Inventive Principle:
Principle #25Self-service

2Measurement precision

If traditional calibration methods are used, then dilution ratio can be calculated, but multiple iterations of testing are required

Engineering Contradiction:
Improvedilution ratio accuracyVSAvoidcalibration efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent replaces iterative manual testing with continuous electronic monitoring. Flow meters provide real-time flow data to the controller, enabling immediate calculation and display of the dilution ratio without requiring multiple test iterations. This electronic measurement system eliminates the repetitive nature of traditional calibration methods.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system implements continuous feedback by having flow meters constantly monitor liquid flow and communicate data to the controller, which calculates and displays the dilution ratio in real-time. This immediate feedback loop eliminates the need for multiple test iterations, as the system continuously provides accurate dilution ratio information for verification and adjustment.

Inventive Principle:
Principle #23Feedback

3Measurement precision

If traditional calibration methods are used, then calibration can be performed, but individuals are exposed to concentrated chemicals

Engineering Contradiction:
Improvedilution ratio accuracyVSAvoidchemical exposure
Core Design Contradiction:
Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

The patent introduces flow meters as intermediary devices that measure liquid flow remotely without requiring direct handling of concentrated chemicals. The flow meters and electronic controller serve as mediators between the operator and the chemical system, enabling accurate dilution ratio measurement while eliminating operator exposure to harmful concentrated chemicals.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Measurement precision

If traditional calibration methods are used, then dilution ratio can be calculated, but real-time monitoring is not possible

Engineering Contradiction:
Improvedilution ratio accuracyVSAvoidreal-time flow data
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The system implements continuous feedback by having flow meters constantly monitor liquid flow and communicate data to the controller, which calculates and displays the dilution ratio in real-time. This immediate feedback loop provides continuous information about the dispensing process, enabling real-time monitoring and adjustment without loss of critical flow data.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent enables continuous monitoring of liquid flow and dilution ratio through the electronic measurement system. Unlike traditional methods that provide only endpoint measurements, the flow meters continuously track flow data, allowing real-time observation of the dispensing process and immediate detection of any deviations from the desired dilution ratio.

Inventive Principle:
Principle #20Continuity of useful action

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 quick and accurate calibration, real-time monitoring, and historical data analysis for optimizing liquid product usage, reducing waste and operating costs by ensuring consistent dilution ratios and effective dispensing.

Implementation Method 1

a flow meter having an inlet with a quick-connector adapted for connecting the inlet of the flow meter in-line to one or more liquid inputs to a liquid dispensing system and a sensor having a data output of liquid flow information

Methodology Applied
Scientific EffectFlow measurement:

Implementation Method 2

The tool also may include dampening means, such as a bladder, a length of flexible wall tubing, and/or a check valve at the outlet of the flow meter

Methodology Applied
Scientific EffectPulse dampening: Damping

Data Source

PatentEP3805443A1Apparatus, method and system for calibrating a liquid dispensing system
Publication Date: 2021.04.14 ECOLAB USA INC
  • EP3805443A1 patent drawingFigure 1A
  • EP3805443A1 patent drawingFigure 1B
  • EP3805443A1 patent drawingFigure 2A

AI summary

An apparatus, method and system providing for calibration and/or control of a liquid dispensing system is disclosed. The hand-held calibration auditing tool includes a flow meter (36-37) with inlets adapted for quick connection to one or more liquid inputs to a liquid dispensing system (10). A sensor (94-95) having a data output of liquid flow information for a liquid input to the dispensing system (10) is operably connected to a controller (12) to receive the liquid flow information for the liquid input. The controller (12) provides a dilution rate and other liquid flow information for a liquid product input to a dispenser.