Electrostatic Discharge Structure for Insulated Fluid Pipelines
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Solution Overview
Problem
Existing methods for reducing static electricity in delivery pipelines, such as grounding and reducing movement or flow rate, are inadequate in effectively dissipating high electrostatic voltages and can interfere with electronic devices, especially in scenarios involving flexible or rotating pipelines.
Innovation Solution
An electrostatic discharge device utilizing at least two conductive materials isolated from each other, combined with an electrostatic eliminator, external capacitor, and gas discharge tube, to efficiently dissipate high electrostatic voltages without noise interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If grounding is used to dissipate static electricity, then electrostatic charges are eliminated, but noise interferes with peripheral electronic products and dissipation speed is slow
Solution Approach 1:
The patent introduces a discharge electrode as an intermediary component between the grounded conductive layer and the insulating pipeline. This electrode extends into the pipeline interior to directly discharge accumulated electrostatic charges, avoiding the need for charges to travel through long grounding wires which generate noise. The intermediary electrode structure enables direct discharge at the charge accumulation site while maintaining grounding connection.
2Adaptability or versatility
If the pipeline moves or rotates to maintain flexibility, then adaptability is improved, but electrostatic charges are generated due to friction between liquid and inner pipe wall
Solution Approach 1:
The patent applies a conductive layer on the outer surface of the insulating pipeline and grounds it to create an equipotential surface. This conductive layer acts as a Faraday shield that prevents electrostatic charges generated by liquid friction inside the pipeline from accumulating on the pipeline wall. The grounded conductive layer maintains constant potential, preventing charge buildup while allowing the pipeline to move and rotate freely.
3Reliability
If high resistivity materials like Teflon are used for corrosion resistance, then reliability is improved, but electrostatic charges accumulate due to high resistivity
Solution Approach 1:
The patent creates a composite structure by applying a conductive layer (metal or conductive coating) on the outer surface of the insulating pipeline. This composite structure combines the corrosion resistance and chemical inertness of materials like Teflon with the electrostatic dissipation properties of the conductive layer. The insulating material maintains reliability against corrosion while the conductive layer prevents charge accumulation.
Solution Approach 2:
The grounded conductive layer on the insulating pipeline creates an equipotential surface that prevents electrostatic charge accumulation. The conductive layer, being grounded, maintains constant potential and provides a path for any charges generated inside the pipeline to be neutralized, while the insulating material itself remains chemically resistant.
4Object-affected harmful factors
If the flow rate is reduced to decrease friction, then electrostatic charge generation is reduced, but production efficiency decreases
Solution Approach 1:
The patent introduces a grounded conductive layer as an intermediary that intercepts electrostatic charges before they can accumulate on the pipeline wall. This conductive layer acts as a charge collection network that continuously neutralizes charges generated by liquid flow, allowing the pipeline to operate at high flow rates without suffering from electrostatic accumulation problems.
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
Effectively dissipates extremely high electrostatic voltages and prevents noise interference at grounding terminals, ensuring reliable operation of electronic devices in environments with flexible or rotating pipelines.
Implementation Method 1
the electrostatic eliminator is configured to release and eliminate the electrostatic charges by means of the conductive materials so as to reduce the electrostatic voltage
Implementation Method 2
static electricity is easily generated due to friction between the liquid and an inner wall of the delivery pipeline
Implementation Method 3
when the liquid and materials of the delivery pipeline both have high resistivity, static electricity is easily generated due to friction between the liquid and an inner wall of the delivery pipeline
Data Source
AI summary
An electrostatic discharge device including at least two conductive materials isolated from each other and at least one electrostatic eliminator. The conductive materials are located outside two opposite side walls of an insulated fluid-carrying member and separated from the side walls thereof. When electrostatic charges are accumulated on the insulated fluid-carrying member, the electrostatic charges form an electrostatic voltage on the conductive materials. The electrostatic eliminator is electrically connected to the conductive materials and directly disconnected from a grounding terminal. The electrostatic eliminator releases and eliminates the electrostatic charges by the conductive materials to reduce the electrostatic voltage. In addition, the insulated fluid-carrying member can also be replaced by an insulation container. When the insulation container is used, induction electrodes can replace the conductive materials in the insulation container. The electrostatic discharge device effectively releases static electricity and avoids noise interference from the grounding terminal.