Do the combustion furnaces in sulfur recovery units and the flue gas incinerators qualify as open-flame equipment?
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Are the combustion furnaces in sulfur recovery units and the flue gas incinerators considered open-flame equipment? Explanation of the Code for Fire Protection Design of Petrochemical Enterprises: Areas with open flames or sparks refer to fixed locations indoors and outdoors where there are exposed flames, red-hot surfaces, or flying embers from chimneys, as well as outdoor tools such as grinding wheels, welding equipment, gas welding devices, and non-explosion-proof electrical switches. I think it’s not a sulfur furnace, but I’m not sure; please ask!
By looking at the structural diagram of the furnace, there are openings and viewing windows on its body, so it is undoubtedly a device that uses an open flame. However, in the current design, the sulfur unit is extremely compact; the distance between many of the equipment used for handling flammable gases (acidic gases) and this furnace does not meet the required standards. How can this be explained?