2016 NACE SIEO Sun Valley January 7 2016 1 Anode Systems Design and Construction Deep Anode System Distributed Anode System Advantages and Disadvantages Design Considerations Material ID: 462919
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ICORR Technologies, Inc.
2016 NACESIEO - Sun ValleyJanuary 7, 2016
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Anode Systems
Design and Construction
Deep Anode System Distributed Anode System
Advantages and Disadvantages
Design Considerations
Material Selection Site ConsiderationsInstallation PracticesEnvironmental Considerations
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Deep Well Anode System
Single or multiple vertical bore holes – 200’ to 500’ Multiple anodes spaced in bottom of bore hole
Venting SystemConductive backfill
Anode Junction Box
External Power source – (Impressed Current)
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Deep Well Anode System
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Distributed Anode System
(Surface Bed)
Several Shallow Vertical or Horizontal Holes Individual Anodes
Conductive Backfill
Anode Header Cable or Anode Junction Box
External Power Source or Galvanic5Slide6
Distributed Anode System
(Surface Bed)
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Distributed Anode System
(Surface Bed)
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Distributed Anode System
(Surface Bed)
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Distributed Anode System
(Surface Bed)
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Distributed Anode System
(Surface Bed)
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Distributed Anode System
(Surface Bed)
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Advantages Of a Deep Anode System
The Anodic Potential Gradient Is Lower In the Near-Surface SoilsSmaller Land Surface Area Requirement
Lower Soils ResistivityFewer Systems Required
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Disadvantages Of a Deep Anode System
Design InformationInstallation Equipment Needs
Cost Of Installation ??
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A
dvantages Of a Distributed Anode SystemDesign Information
Ease Of InstallationWorks Well In Areas Of Electrical Shielding
Cost Of Installation ??
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Disadvantages Of a Distributed Anode System
The Anodic Potential Gradient Is Higher In the Near-Surface Soils
Larger Land Surface Area Requirement
Equipment Exposure To Damage
More Systems Required
(Galvanic) Limited CP Current Available(Galvanic) Polarized Potentials Difficult To Obtain
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Design
Current Required To Protect The Structure
Geology & HydrologySurface Testing
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Material Selection
Anode SelectionBackfill
WireVenting System
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Site Considerations
Availability Of AC PowerForeign Structures
AccessibilityProperty Owner or ROW Agreement
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Installation Practices
SafetyDrilling Operations
Electrical LogPlacing Anodes
Pumping Or Placement Of Backfill
Surface Completion
Commissioning 19Slide20
Environmental Considerations
Surface Water RunoffSubsurface AquiferMaterials Contamination
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Deep Well Cathodic System
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Deep Well Cathodic System
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Deep Well Cathodic System
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Continuous Horizontal
Anode
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Continuous Horizontal
Anode
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Galvanic Anode Installation
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Typical Wire Connection to Pipe
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Impressed Current Anodes
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Corrosion Pit
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ICORR Technologies, Inc.
Questions?
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