What are the symptoms of a furnace tube rupture? What causes it? How to handle it?
Thread Content
What are the symptoms of a furnace tube rupture? What causes it? How to handle it?
After the furnace tube ruptures, the furnace temperature rises sharply; the temperature exceeds the limit, and incomplete combustion results in black smoke and other issues； Reasons include uneven heating, current imbalance, and substandard quality of furnace tubes ； Suspend operations normally or urgently depending on the circumstances.
In the case of boiler water, a rupture in the steam pipe can cause the furnace temperature to drop rapidly and the furnace pressure to increase. Air may leak from cracks in the furnace walls; in such cases, the sound of escaping steam can be heard, and the chimney may turn white. In such situations, an emergency shutdown of the boiler is necessary
After the furnace tube ruptures, the furnace temperature rises sharply; the temperature exceeds the limit, and incomplete combustion results in black smoke and other issues； Handle the emergency shutdown of the furnace, reduce the load, and inject steam into the furnace chamber for protection
I’ve never seen a real rupture; I have seen sand holes, though, and they don’t affect production. Those are small flames that can be seen. For a furnace tube to rupture, it would have to be due to some serious violation of regulations, or there must be a major defect in the furnace tube for that to happen
It depends on the type of furnace; generally, when the furnace tubes are damaged, the only option is to shut down the furnace for maintenance. The reasons for this include tube aging, prolonged exposure to high temperatures, frequent start-up and shutdown cycles, rapid changes in pressure and temperature, scaling inside the tubes, blockages, catalyst bridging, sintering, pulverization, and so on. There are many possible symptoms, with pressure and temperature being the most direct indicators – system pressure, furnace pressure, furnace temperature, tube bank temperature, flue gas temperature, and heat exchange efficiency all experience changes
This post was last edited by Mou Kang on 2019-10-13 at 21:19. Phenomenon: Black smoke is emitted, the furnace chamber is very dark, and the furnace temperature rises sharply. Reasons: erosion, corrosion of raw materials, and defects in the pipes and fittings themselves. Treatment: Lower the temperature and flow rate, shut down the furnace, inject steam into the furnace chamber for shielding, and handle it as an emergency shutdown.