© Irrigation Association Designing for Chemigation Equipment.
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Transcript of © Irrigation Association Designing for Chemigation Equipment.
![Page 1: © Irrigation Association Designing for Chemigation Equipment.](https://reader030.fdocuments.us/reader030/viewer/2022032705/56649dbc5503460f94aaee63/html5/thumbnails/1.jpg)
© Irrigation Association
Designing for Chemigation Equipment
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Seasonal N Uptake -%-
May| June| July| August| Sept|April0
25
50
75
100
Nit
rogen
Up
take
- %
of
Tota
l
IncrementalAdditions of
Nutrients
70-75%
Benefits of chemigation
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Problem #1
• Irrigation pump shuts down• Injection pump continues to run
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Problem #2Unexpected shut down of
irrigation system
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Problem #3Injection line check valve
failure
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© Irrigation Association
Chemical Injection Equipment
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Chemigation Injection Installation
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© Irrigation Association
Understanding the Types of Components
• Backflow prevention
• Injection system
• Corrosion and precipitates
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© Irrigation Association
Commercial Chemigation Valve
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© Irrigation Association
Check Valve Cut-Away
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© Irrigation Association
Packaged Venturi System
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© Irrigation Association
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© Irrigation Association
Understanding the Types of Components,
cont.
• Storage
• Valves and fittings
• Sensors and controls
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© Irrigation Association
Spill Containment
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© Irrigation Association
Chemical Overflow Due to Injector Check Valve
Failure
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© Irrigation Association
Understanding the Importance of
Uniformity
• The impact of end guns in
unregulated systems
• The impact of intermittent
end
guns and corner systems
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© Irrigation Association
Coordinating Application Dosage and Pivot Speed
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© Irrigation Association
Understanding Regulatory and Safety
Requirements
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System hydraulics change with
intermittent end gun