Sealing of catalytic smoke extractors
Thread Content
Does the catalytic smoke extractor leak smoke from its sealing areas? And if there is a leak, how can it be fixed during operation?
No smoke leakage – sealing steam and sealing air were supplied from the start of operation
Adjust the seal air and seal steam; there should be no smoke leakage
At the beginning, there was no leakage, but after about 1 month, it started leaking severely
At first, the teeth of the steam sealing ring were longer and sharper, resulting in good sealing performance. If the steam and air sealing systems are put into use as scheduled and properly, there should be no leaks. Over time, as operation continues, the comb teeth gradually become dull, resulting in a reduced sealing effect. The flue gas carries fine catalyst particles that gradually fill the gaps between the comb teeth (causing scaling), and eventually, the leakage issues described by the original poster occur. It is recommended that, after operating for a period of time, considering an appropriate increase in the seal air and seal steam pressure.