Gas leakage problem in the acid production heat exchanger for zinc smelting flue gas
Thread Content
I would like to ask everyone, how is air leakage in heat exchangers analyzed? Is this a 3+1 or 4+2 process, used to measure sulfur dioxide concentration for analysis? It measures the sulfur dioxide concentration at the fourth-stage outlet (which is equivalent to measuring the sulfur dioxide concentration in the sulfur trioxide after conversion), and then it measures the sulfur dioxide concentration at the 4a outlet. Is it equivalent to measuring the concentration of sulfur dioxide in sulfur trioxide? So, if the measured sulfur dioxide concentration at outlet 4A is higher than that at outlet 4B, does that mean there is a leak in outlet 4?
Forgot to mention that considering a 4-to-1 replacement, there might be air leakage