What are the causes of tempering in heating furnaces?
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What are the causes of tempering in heating furnaces?
1: Large amount of oil in the gas. 2: A large amount of fuel oil is fed into the furnace. 3: The flue damper is open to a small degree, preventing smoke from escaping. 4: The furnace is operating under overload, and the flue gas cannot be discharged in time. The main cause of tempering during startup is?: A faulty gas valve, which allows gas to enter the furnace. ?: It fails to ignite on the first attempt; before attempting ignition again, the furnace chamber is not properly purged, resulting in an explosion and backfire in the furnace.
Reason: (1) A large amount of fuel is injected into the furnace, or the gas contains a high amount of oil. (2) The opening degree of the flue dampers is too small, reducing the furnace’s suction force and preventing the smoke from being expelled. (3) The furnace is operating under overload, and the flue gas cannot be discharged in time. (4) Backfire during startup is mainly caused by a faulty gas valve, which allows gas to enter the furnace, or by incomplete purging of the furnace before attempting another ignition in case the initial attempt fails, resulting in an explosion and backfire in the furnace. Prevention: