Issues regarding temperature measurement in the acidic gas combustion furnace of desulfurization units
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Acid gas combustion furnace in the desulfurization unit: The fuel is primarily hydrogen sulfide, and the temperature during combustion reaches 1200 to 1300 degrees. There is an infrared thermometer and two Type B thermocouples installed on the furnace. In use, these two Type B thermocouples became damaged after a short period of time. Upon inspection, it was found that the corundum tubes were in good condition, but the core parts of the thermocouples had been corroded. No leaks or poor sealing were detected during the inspection; it’s not clear what caused this issue Also, does anyone have any better measurement methods or solutions? Thank you!
This corrosive gas will certainly corrode the thermocouples. I’m not sure which company you work for; we specialize in infrared temperature sensors that are used in sulfur recovery heaters. You might want to take a look at them.
Corrosion occurs due to the high-temperature sulfur environment