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Chilworth专家发表在Chemical Processing杂志上的文章

Prevent Formation of Ignitable Mixtures

A variety of techniques can preclude fire and explosion hazards

By Anand Kenchenpur, Chilworth Technology

So, plant personnel must understand the hazards that flammable liquids present, such as:

• Materials that are easily ignited by several types of ignition sources, including electrostatic discharges. Less than 1 mJ of spark energy - what a perceptible doorknob shock provides - can ignite most vapor/air mixtures.
• Liquid vapors that can readily mix with air to form explosive mixtures and can easily travel along the floor from one location to another or get raised to higher levels due to air currents.
• Liquids that burn readily and give off more heat than fires involving ordinary materials like paper or wood; the resulting high temperatures often make it very difficult to extinguish fires involving these flammable liquids. Also, the products of combustion generally are noxious.
• Vapors from flammable liquids that mix with surrounding air and burn with explosive force when confined.
• Flammable liquid fires that can spread quickly depending upon the extent of containment and the slope of the floor or ground.

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