What is the function of the spring supports on the furnace tubes in natural gas hydrogen production?
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Newcomer assistance: Natural gas conversion for hydrogen production – the working principle of the spring supports attached to the furnace tubes in top-fired furnaces, and what role do these supports play during normal operation as well as during startup and shutdown processes? I hope all the experts can join in the discussion and offer their guidance.
Elastic support brackets protect the furnace tubes from thermal expansion and contraction.
Spring hangers and counterweights utilize complex mechanical principles to minimize the thermal stress caused by the significant temperature changes in the converter during startup and shutdown processes.
If, while the device is operating normally, the spring hanger is slightly separated from the furnace tube with almost no contact, then what damage can that cause to the furnace tube?
Protect the converter tubes, providing elastic protection during thermal expansion and contraction
For the type of furnace tube you mentioned, which has spring-supported hangers at its upper part, the lower part of the furnace tube is usually fixed. As the furnace tube expands when heated and contracts when cooled, and since its lower part is fixed, it is the upper part that deforms; the hangers serve to absorb this deformation. The complete separation of the supports and hangers from the furnace tubes indicates that they are no longer functional in this state; I consider this to be abnormal behavior.
Thank you for your attention. My question is: what specific damages can occur to the furnace tubes as a result of the suspension frame becoming loose when the device is operating normally? :)
The hanger-mounted furnace tube is unable to absorb thermal expansion, resulting in bending stress that causes damage to the furnace tube at the circumferential welds. The hangers should be inspected regularly and adjusted if necessary, to ensure that they can fully bear the net weight load of the furnace tubes during operation.
Thank you so much:victory: