Thread Content
The last edit to this post was made by tianyewei on 2018-8-24 at 10:57. Answer: The layout of heating furnaces should meet the following requirements: (1) Open-flame heating furnaces should be located concentratedly at the edge of the facility, near fire exits, and on the downwind side of the wind direction corresponding to the lowest frequency of occurrence of flammable gases, liquefied hydrocarbons, and Class B liquids throughout the year； (2) The heating furnace and other open-flame equipment should be located together ； (3) Several heating furnaces can be arranged in rows aligned along the center line of the furnaces. The clear distance between the two heating furnaces should not be less than 3 m ； (4) When using mobile maintenance equipment to lift the furnace tubes of the heating furnace, there should be passages and maintenance areas available for such equipment. For heating furnaces equipped with horizontal furnace tubes, on the side where the tubes are removed, the length of the maintenance area should not be less than the length of the furnace tubes plus 2 meters ； (5) The distance between the outer wall of the heating furnace and the edge of the maintenance road should not be less than 3 m ； (6) For heating furnaces equipped with steam generators, the steam drum should be located at the top of the furnace or on a framework adjacent to it ； (7) The distance between the heating furnace and its associated fuel gas separation tank and fuel gas heater should not be less than 6 m ； (8) When the heating furnace is equipped with auxiliary equipment such as air preheaters, blowers, and exhaust fans, the layout of these auxiliary devices should not prevent the maintenance of both themselves and the heating furnace ； (9) The fire separation distance between the heating furnace and the liquefied hydrocarbon equipment installed outdoors shall not be less than 22.5 m. If a solid wall made of non-combustible material is installed between the equipment, this distance can be reduced, but it must still be no less than 15 m. The height of the solid wall should not be less than 3 m, and it should be no more than 5 m away from the heating furnace; it must also prevent combustible gases from entering the furnace ； When the wall facing the heating furnace in the building housing the liquefied hydrocarbon equipment or the Class A gas compressor room is a closed wall, the distance between the heating furnace and the building can be reduced, but it must not be less than 15 m.