Fluid Distribution Valve Control With Sliding Threshold Discharge

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Solution Overview

Problem

Existing methods for controlling discharge valves in industrial fluid distribution systems face challenges in setting safety margins, leading to potential damage from insufficient sensitivity or untimely opening, resulting in fluid loss and increased costs.

Innovation Solution

A distribution device that calculates a sliding threshold value for fluid parameters in real time, allowing for partial gradual opening or closing of the discharge valve, based on a comparison between the sliding threshold and instantaneous values, to prevent overloads and fluid loss.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a high safety margin value is used for controlling the discharge valve, then the components of the distribution line are protected from damage, but the discharge valve opens only upon significant variations in fluid parameter, risking insufficient sensitivity and potential damage

Engineering Contradiction:
Improveprotection of distribution line componentsVSAvoidsensitivity of discharge valve control
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

The patent applies dynamics by making the safety margin value variable rather than fixed. The control system continuously adjusts the safety margin based on real-time fluid parameter measurements and historical data, allowing the threshold for discharge valve activation to adapt dynamically to changing operating conditions. This resolves the contradiction by enabling both high protection (when parameters are stable) and high sensitivity (when parameters fluctuate significantly)

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of the safety margin from a constant value to a variable parameter that evolves over time. By using adaptive algorithms that modify the safety margin based on observed fluid parameter variations, the system achieves both component protection and sensitive response to critical conditions

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If a low safety margin value is used for controlling the discharge valve, then the discharge valve responds sensitively to small variations in fluid parameter, but the valve may open untimely causing fluid loss and increased costs

Engineering Contradiction:
Improvesensitivity of discharge valve controlVSAvoidfluid loss
Core Design Contradiction:
Measurement precisionVSLoss of substance

Solution Approach 1:

The patent implements feedback mechanisms where the control system continuously monitors fluid parameters, compares them against dynamically adjusted thresholds, and uses the outcomes to refine future decisions. This feedback loop prevents premature valve opening by learning from historical data and adjusting the safety margin to distinguish between normal fluctuations and critical conditions requiring discharge

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs preliminary analysis of fluid parameter trends before triggering discharge valve opening. By evaluating historical data and predicting future parameter evolution, the system can prepare appropriate safety margins in advance, preventing untimely valve activation while maintaining sensitivity to genuine threats

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If conventional fixed threshold control is used for the discharge valve, then the control method is simple, but it cannot adapt to varying operating conditions leading to either excessive opening or insufficient protection

Engineering Contradiction:
Improvesimplicity of control methodVSAvoidadaptability to varying operating conditions
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The control system performs self-adjustment by automatically modifying the safety margin value based on observed operating conditions without requiring manual intervention. The system serves itself by learning from historical data and adapting its control parameters, maintaining simplicity of operation while achieving high adaptability to varying conditions

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11543837B2Device and method for distributing a fluid in an industrial facility
Publication Date: 2023.01.03 LAIR LIQUIDE SA POUR LETUDE & LEXPLOITATION DES PROCEDES GEORGES CLAUDE
  • US11543837B2 patent drawing
  • US11543837B2 patent drawing
  • US11543837B2 patent drawing

AI summary

The invention can include a device and method for distributing a fluid in an industrial facility that comprises a fluid distribution pipe, a discharge pipe, a distribution valve that is positioned on the distribution pipe and controlling the distribution of fluid between an upstream area and a downstream area, a discharge valve positioned on the discharge pipe, and measuring means for measuring, in real time, a characteristic parameter of the distribution of the fluid within one of the pipes. A module is also included for calculating a sliding threshold value of the characteristic parameter and means configured to control the partial gradual opening or closing of the discharge valve depending on the result of the comparison of said sliding threshold value with an instantaneous value of the characteristic parameter, in order to improve reliability of the industrial facility.