SKIN TUBE TEMP IN FURNACE

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maged2022
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SKIN TUBE TEMP IN FURNACE

Post by maged2022 »

OUR FURNACE TOP FIRING AND CONTAIN 3 ROWS OF PROCESS TUBES AND 4 ROWS OF BURNERS .. THE PROCESS TUBES WHICH IN THE MIDDLE WHEN WE MESSURE THE TEMP OF BOTH SIDE IS GOOD .. EQUAL .. BUT THE SIDE PROCESS ROWS.. THE TUBE SKIN OF INNER SIDE IS LOWER THAN THE OUTTER SIDE ..OUTTY SIDE FACED TO WALL .. IS IT WHY ?
bedmonds
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Re: SKIN TUBE TEMP IN FURNACE

Post by bedmonds »

Hi, Difficult to say for sure but typically the burners on adjacent to the walls have about 60% of the heat release as the center row burners. It might be worth a check to see if the outer burners spuds are drilled at around 75-80% of the center burner hole diameters (or have only 60% of the hole number). Depending on the burners details, it is usually easy to pull burners and modify. one at a time, if required. I've done so to replace spuds and just covered the hole while the burner is removed.
albin93
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Re: SKIN TUBE TEMP IN FURNACE

Post by albin93 »

Hi, May I know which IR pyrometers are preferred for monitoring the skin temperature of tubes of Top fired reformer? or if there is any better method for monitoring the same.
ar70engr@hotmail.com
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Re: SKIN TUBE TEMP IN FURNACE

Post by ar70engr@hotmail.com »

Reflection of furnace wall refractory misleads the temperature reading.
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