What is the phenomenon of tube burnout in the heating furnace of a hydrogenation reaction? How to handle it?
Thread Content
What is the phenomenon of tube burnout in the heating furnace of a hydrogenation reaction? How to handle it?
Phenomenon: Black smoke is emitted from the chimney; the furnace temperature inside the DCS rises sharply while the oxygen level decreases. Action taken: Contact the dispatch team and the on-duty supervisor in the workshop to alert the fire department to come and extinguish the fire. The operators immediately shut down the furnace, opened all the flue dampers, and introduced fire-extinguishing steam into the furnace chamber. Stop the compressor and the feed pump, while controlling the pressure release rate properly.
Phenomenon: 1. When the furnace tube is burned through to form small holes, flames appear on the furnace tube. 2. In the case of severe burn-through, black smoke is emitted from the chimney, the pressure at the furnace outlet decreases, while the temperature inside the furnace and at the outlet increase. Reason: Severe coking of the furnace tubes, excessively high furnace temperature, with flames directly hitting the furnace tubes, resulting in localized overheating of these tubes; moreover, the quality of the furnace tubes was poor. Treatment: When burning through to form small holes, cool down and shut down the furnace. In cases of severe burn-through, it is necessary to shut down the furnace urgently