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Hazards

Hazards. Introduction. High risk Need to reduce risks We will cover two areas: Fire Design of the blending system. Fire Triangle. To create fire need 3 elements: OXYGEN FUEL HEAT. Oxygen. Supports combustion Not fuel Removal prevents fire 100% oxygen for blending

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Hazards

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  1. Hazards

  2. Introduction • High risk • Need to reduce risks We will cover two areas: • Fire • Design of the blending system

  3. Fire Triangle • To create fire need 3 elements: OXYGEN FUEL HEAT

  4. Oxygen • Supports combustion • Not fuel • Removal prevents fire • 100% oxygen for blending • Other precautions necessary • Safety data sheets

  5. Fuel • Identify potential fuels • Hydrocarbons • Easily combust at low temperatures • Compressors • Contaminants • Use compatible components • Higher heat tolerance • Reduce risk

  6. Heat (ignition) • Control heat production • Friction of compressing gas • Opening valves • Adiabatic compression • Avoid excessive heat generation

  7. Fire Prevention • Cannot remove oxygen! • Cannot remove 100% of fuel • Can control heat production • Open fill cylinder first FILL SLOWLY 5 –7 bar / minute

  8. Design of System • Seek advice • Decide blending method • Identify dangers • List required equipment • Manufacturers recommendations • Choose suitable components • Siting • Inspection / Cleaning

  9. Use of the System • Trained • Familiar • Keep up to date • Attitude • Technique • NOT A SOCIAL OCCASION

  10. Cleaning the system • > 40 % in oxygen service • Contaminant free • Compatible parts • Metals: copper based allo • Non-metals: Viton, Teflon or Kel-F • Lubricants: non-petroleum • Manufacturer’s recommendations

  11. Summary • We covered : • Fire • Design of the blending system

  12. Questions?

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