Understanding Flame Arrestors: Key Terms for Industrial Safety

A flame arrestor (also known as flame arrester) is an important safety device used in various industrial settings to prevent the spread of fires and explosions. It is designed to control the release of flammable gases or vapors by extinguishing any flames that may come into contact with it. If you are new to the concept of flame arrestors, it is important to familiarize yourself with some key terms to better understand their function and importance.

1. Flammable gases or vapors

These are substances that can ignite and cause a fire or explosion. They are commonly used in industrial processes and can arise during the storage, handling, or transportation of flammable liquids.

2. Combustion

This is a chemical reaction between oxygen and a combustible substance that produces heat and light. This is necessary for the fire to ignite and continue burning.

3. Deflagration

This is rapid and violent combustion that can lead to an explosion. It occurs when a flammable substance ignites and the flame spreads within a confined space.

4. Detonation

This is an even faster and more violent combustion that produces a powerful explosion. It occurs when the sudden release of energy creates a shock wave, often caused by a spark or flame.

5. Flame spread

This is the spread of a flame through a flammable substance or mixture. It can be controlled by several factors, such as the design and placement of flame arrestors.

6. Flashback

This is a dangerous phenomenon that occurs when a flame spreads through the fuel supply back to its source. This can be due to several causes, such as turbulence or inadequate safety devices.

7. Vapor concentration

Refers to the amount of flammable vapor mixed with the air at a given location. To avoid the risk of fire or explosion, it is important to monitor and control the vapor concentration.

8. Inhibitor

This is a substance added to a flammable liquid to delay or prevent its combustion. It can help reduce the risk of fire and increase the safety of industrial processes.

9. Passive protection

This type of protection relies on physical barriers and structures to control the spread of fire or explosion. Flame arrestors are an example of passive protection.

10. Active protection

This type of protection uses systems or devices to detect and suppress fires or explosions. It can be used in conjunction with passive protection to increase safety.

 

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