Process Water Sensor Heating to Mitigate Lipid Fouling

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Solution Overview

Problem

Sensors used in food processing systems, particularly those measuring properties of process water, are prone to fouling by adhering materials like lipids, leading to reduced effectiveness and potential health risks due to inaccurate measurements.

Innovation Solution

A water control system that includes a temperature adjustment element positioned upstream of the sensor to adjust the temperature of process water, mitigating fouling effects by heating or cooling the water to prevent lipid accumulation on the sensor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If sensors are placed in direct contact with process water to measure properties, then measurement accuracy is improved, but sensor fouling by lipids increases

Engineering Contradiction:

Improvemeasurement accuracyVSAvoidsensor fouling

Core Design Contradiction:

Measurement precisionVSObject-affected harmful factors

Solution Approach 1:

A temperature adjustment element is introduced as an intermediary component between the process water and the sensor. This element modifies the thermal state of the water to prevent lipid fouling while allowing the sensor to remain in contact with the fluid for measurement purposes.

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The temperature of the process water is changed as a control parameter to mitigate fouling. By adjusting temperature, the physical state and fouling tendency of lipids are modified, allowing the sensor to maintain measurement accuracy without direct exposure to fouling conditions.

Inventive Principle:

Principle #35Parameter changes

2Object-affected harmful factors

If temperature adjustment element is added upstream of sensor, then sensor fouling is reduced, but device complexity increases

Engineering Contradiction:

Improvesensor foulingVSAvoiddevice complexity

Core Design Contradiction:

Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The temperature adjustment element serves multiple functions: it controls water temperature for process requirements and simultaneously prevents sensor fouling by modifying lipid behavior. This multi-functionality justifies the added complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The temperature adjustment element performs preliminary action by conditioning the process water before it reaches the sensor. This preventive measure addresses fouling before it occurs, eliminating the need for complex post-fouling mitigation systems.

Inventive Principle:

Principle #10Preliminary action

3Object-affected harmful factors

If process water temperature is adjusted, then lipid fouling is prevented, but energy consumption increases

Engineering Contradiction:

Improvelipid foulingVSAvoidenergy consumption

Core Design Contradiction:

Object-affected harmful factorsVSUse of energy by moving object

Solution Approach 1:

Temperature is used as a controllable parameter to prevent fouling. By optimizing the temperature adjustment to only what is necessary for fouling prevention rather than extreme temperature changes, energy consumption is minimized while achieving the protective effect.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

Thermal energy is used to substitute for mechanical cleaning systems that would otherwise be required to remove lipid fouling. This thermal approach is more energy-efficient than continuous mechanical intervention.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

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 sensor fouling by softening or liquefying lipids, ensuring accurate measurement of process water properties and maintaining hygiene control in food processing systems.

Implementation Method 1

The temperature adjustment element is generally configured to: receive, at the inlet of the temperature adjustment element, a portion of process water from a process water supply in a stage of the food processing system, the process water in the process water supply and the received portion of the process water having a first temperature; and cause the portion of the process water at the outlet of the temperature adjustment element to have a second temperature, different from the first temperature.

Methodology Applied

Scientific EffectHeating: Heating

Implementation Method 2

Methodology Applied

Scientific EffectCooling: Cooling

Data Source

PatentUS20260035267A1Methods and systems for sensor fouling mitigation

Publication Date: 2026.02.05 SMARTWASH SOLUTIONS LLC

AI summary

Methods and apparatus for monitoring process water within a food processing system are provided. One example water control system for a food processing system generally includes a temperature adjustment element having an inlet and an outlet and a sensor coupled to the outlet of the temperature adjust element. The temperature adjustment element is configured to: receive, at the inlet, a portion of process water from a process water supply in a stage of the food processing system, the process water in the process water supply and the received portion of the process water having a first temperature; and cause the portion of the process water at the outlet to have a second temperature, different from the first temperature. The sensor is configured to measure at least one property of the portion of the process water received from the outlet of the temperature adjustment element.