In order for combustion to occur and a flame to be present, the reaction requires three elements: oxygen, ignition and fuel. The reaction zone between burnt and unburnt products is known as a flame. So here’s a brief outline:Ĭombustion is the exothermic chemical reaction of a fuel in the presence of oxygen which results in the release of energy in the form of heat and light. Regardless of your industry, this could be vital information. Now we know of the history, it’s good to know how combustion occurs and about explosion risks. Today, Elmac is one of the UK’s leading companies in providing the safe installation, inspection and maintenance of flame arresters. Things have moved on since then, of course. The mesh acted as a heat sink cooling the flame and preventing it from igniting gas on the outside of the lamp. The Davy lamp housed a candle within a fine gauze mesh screen which allowed light to pass through it whilst preventing flames from ignited pockets of methane escaping from the lamp. The first flame arrester was invented by Sir Humphrey Davy in 1815 to protect miners from explosions caused by using naked flames in mines. So let’s go back to how they first came to exist.
By definition, a flame arrester is a passive device that allows gas to pass through it but stops the propagation of a flame.īut before we start to describe flamer arresters and how they work, it’s a good idea to start with a little background information.
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