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SPRAY EQUIPMENT FOR HELICOPTERS

MICRONAIR. SPRAY EQUIPMENT FOR HELICOPTERS. Micron Sprayers Limited. UK based and owned Established 50 years Inventor of CDA using rotary atomisers 50 employees Sales to over 90 countries Micronair Division on Isle of Wight. Bembridge Fort. CONTROLLED DROPLET APPLICATION ( CDA ).

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SPRAY EQUIPMENT FOR HELICOPTERS

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  1. MICRONAIR SPRAY EQUIPMENTFOR HELICOPTERS

  2. Micron Sprayers Limited • UK based and owned • Established 50 years • Inventor of CDA using rotary atomisers • 50 employees • Sales to over 90 countries • Micronair Division on Isle of Wight

  3. Bembridge Fort

  4. CONTROLLED DROPLET APPLICATION(CDA)

  5. Hydraulic Nozzles

  6. Hydraulic NozzleDroplet Formation

  7. Rotary Atomiser

  8. Rotary Atomiser (CDA)Droplet Formation

  9. Comparison of Spray Droplets From standard nozzle From Micronair Atomiser

  10. Droplet Size & Coverage • Reducing droplet size increases the number of droplets • Smaller droplets give more droplets/cm2 than larger droplets • Smaller droplets penetrate dense foliage better

  11. Number of Droplets on Target 8 1 512 64

  12. Choice of Droplet Size Droplets must be small enough to: • Give good coverage • Give effective penetration of foliage But must be large enough to: • Not evaporate significantly before reaching their target • Not drift out of the target area

  13. Sensitive Card 1 cm2

  14. MICRONAIR SPRAY EQUIPMENT

  15. Typical Spray System

  16. MICRONAIR ATOMISERSONHELICOPTERS

  17. Choice of Atomiser AU5000 – Wind Driven AU6539 – Electric

  18. Comparison of Atomisers

  19. Electronic Speed Control

  20. AU5000 Atomisers on Mi-2

  21. AU5000 Atomisers on Mi-2

  22. AU5000 Atomisers on KA-26

  23. AU5000 Atomisers on KA-26

  24. AU5000 Atomisers on KA-26

  25. AU6539 Atomisers on Mi-8

  26. Mi-8 Internal Tank • Capacity 750 litres • Mounted on attachment points for long-range fuel tanks • External filler & vent

  27. AU6539 Atomisers on B-212

  28. AU5000 System on Super Puma

  29. Spray Pod on Dauphin Helicopter

  30. ACCESSORIES

  31. Variable Restrictor Unit (VRU) • One VRU used with each atomiser • Regulates chemical flow rate to atomiser • Installed on spray boom • Adjusted on ground

  32. Variable Restrictor Plates • Fixed restrictor plate drilled with 7 different size holes • Rotating selector plate exposes one hole in restrictor plate • Selector plate rotated by knob on VRU

  33. Diaphragm Check Valve • Prevents leakage of chemical when atomiser is not operating • Opens when control valve is opened and pressure in boom increases • Installed on atomiser

  34. Application Monitor • Measures chemical flow rate with turbine in pipe to booms • Displays flow and application data • Measures atomiser RPM • Installed in cockpit

  35. Application Monitor Functions • Chemical flow rate (Litres/Minute) • Volume sprayed (Litres) • Application Rate (Litres/Hectare) • Area sprayed (Hectares) • Spray time (Minutes : Seconds) • Work rate (Hectares/Minute) • Atomiser RPM

  36. Flowmeter Turbine

  37. Flowmeter Turbine Rotor

  38. Flowmeter Installation on KA-26

  39. Atomiser RPM Indicator • Measures speed of each atomiser (max 10 units) • Allows all atomisers to be adjusted to rotate at same speed • Magnetic transducer installed on each atomiser

  40. Application Printer • Prints data from application monitor • Provides permanent record of each spray job • Installed in cockpit of aircraft

  41. MICRONAIR SPRAY EQUIPMENTFORHELICOPTERS

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