Protective Liner Wear Detection via Conductive Layer

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Solution Overview

Problem

Existing protective liners for material transport apparatuses lack comprehensive wear detection capabilities, leading to unpredictable and potentially hazardous failures due to localized wear, which can result in premature failure and require unnecessary maintenance or decommissioning.

Innovation Solution

A multi-layer protective liner system with an electrically conductive substrate, an electrically non-conductive first layer, and an electrically conductive second layer, where the second layer is insulated from the substrate, and a monitoring device is used to detect electrical connections indicative of wear, allowing for predictive maintenance through signal transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If a protective liner is used in material transport apparatus, then wear resistance is improved, but wear detection capability deteriorates (no wear detection)

Engineering Contradiction:
Improvewear resistanceVSAvoidwear detection capability
Core Design Contradiction:
StrengthVSLoss of information

Solution Approach 1:

The protective liner is constructed as a multi-layer composite structure with an electrically conductive layer integrated within electrically insulating layers. This composite design maintains the wear resistance of the protective liner while incorporating wear detection functionality through the conductive layer, resolving the contradiction between protection and detection capability.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The electrically conductive layer acts as an intermediary element between the inner and outer electrically insulating layers. When wear occurs, this intermediary layer provides a detectable electrical signal change, enabling wear detection without compromising the protective function of the liner.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of manufacture

If traditional single-layer protective liners are used, then manufacturing simplicity is maintained, but reliability deteriorates (unpredictable failures)

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidpredictability of failure
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The multi-layer composite structure with conductive and insulating layers provides predictable wear detection capabilities while maintaining manufacturing feasibility through established composite material fabrication techniques.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The conductive layer provides real-time feedback on wear conditions through electrical conductivity changes. This feedback mechanism enables predictable maintenance scheduling and prevents sudden failures, improving reliability without significantly complicating the manufacturing process.

Inventive Principle:
Principle #23Feedback

3Duration of action of moving object

If no wear monitoring is implemented, then operational time is maximized, but safety hazards increase

Engineering Contradiction:
Improveoperational timeVSAvoidsafety hazards
Core Design Contradiction:
Duration of action of moving objectVSObject-affected harmful factors

Solution Approach 1:

The conductive layer provides continuous feedback on the wear status of the protective liner. When wear reaches critical levels, the electrical properties change, triggering alerts that enable timely maintenance intervention, thus extending safe operational time while preventing safety hazards.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The monitoring system detects wear before it leads to catastrophic failure. By taking preliminary action through early detection, the system extends the safe operational duration of the protective liner while preventing the development of harmful safety hazards.

Inventive Principle:
Principle #10Preliminary 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

The solution enables predictive wear detection, preventing premature failure, reducing environmental and safety hazards, and allowing for scheduled maintenance and just-in-time replacement of the protective liner.

Implementation Method 1

an electrically non-conductive first layer coupled to the substrate, and an electrically conductive second layer coupled to the first layer, wherein the first layer electrically insulates the second layer from the substrate

Methodology Applied
Scientific EffectElectrical insulation: Conduction (electrical)

Implementation Method 2

a monitoring device connected to the substrate and the second layer, wherein the monitoring device is configured to detect an electrical connection between the substrate and the second layer indicative of wear of the protective liner

Methodology Applied
Scientific EffectElectrical conductivity detection: Conduction (electrical)

Data Source

PatentUS9267636B2Protective liner with wear detection
Publication Date: 2016.02.23 1876255 ONTARIO
  • US9267636B2 patent drawing
  • US9267636B2 patent drawing
  • US9267636B2 patent drawing

AI summary

An apparatus for transporting materials including an electrically conductive substrate and a protective liner being in contact with the transported materials. The protective liner includes an electrically non-conductive first layer coupled to the substrate, and an electrically conductive second layer coupled to the first layer. The first layer electrically insulates the second layer from the substrate. A monitoring device is connected to the substrate and the second layer, and configured to detect an electrical connection between the substrate and the second layer indicative of wear of the protective liner. The apparatus can be in a form of a pipe, hose, elbow, valve or tank, and may be used to transport abrasive materials.