Measures to maintain production after leakage in the waste heat exchanger tube bundle of the acidic gas combustion furnace
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This post was last edited by liaifeng on 2018-8-5 at 17:10. Leakage is occurring in the waste boiler tube bundle into the system; as a remedy, pressure relief and direct discharge of steam generated from the waste boiler were adopted. However, due to the decrease in shell-side temperature, water is detected in the boiler’s drain water. Is it possible to use 3 kilograms of steam instead of deionized water as the cooling medium? (The furnace temperature is 1000°C)
The thermal conductivity of water and steam differs greatly, and the furnace tubes cannot withstand it.
When using steam to cool the waste heat boiler, it is necessary to consider two factors: first, the temperature at the rear of the waste heat boiler; second, the corrosion issue in areas of the process gas system where the temperature is low； Third, attention should be paid to system sulfur formation and pressure in front of the furnace.
It’s better to stop and carry out a thorough inspection; it’s better to deal with the problem quickly rather than let it persist, otherwise a bunch of problems will arise!