Today for a brief introduction about how to extend the life of silicon carbide radiation tube, we want to help.
1, control of burning gas and air combustion ratio, because under the protection of nitrogen and excess oxygen oxidation and nitridation, the radiation tube corrosion damage, so the combustion exhaust gas content of O2% controlled below 2%.
2, gas pressure control valve and air pressure control valve action should be sensitive, do not lag, to ensure that the gas pressure and air pressure to ensure complete combustion stability
3, exhaust smoke exhaust fan speed steady, reduce combustion flame fluctuation.
4, the combustion air for heat exchanger can not have leakage, avoid air exhaust fan is pumped out, effect of the gas and air mixed combustion ratio.
5, for heat exchanger flange and the sealing performance is better cannot make outside cold air to enter, want to try to raise the temperature of the combustion air.
6, if in the conditions and funding permits shall be installed on large heat exchanger, utilization to outside plant waste heat (up to 390 DEG C) for the first time to preheat the air emissions, air enters the radiation burner tube heat exchanger secondary air preheating combustion air temperature is improved.
Temperature >400 DEG C 7, silicon carbide radiant tube furnace temperature), is strictly prohibited open the lid of the stove and the disassembly of the burner and heat exchanger, avoid high temperature radiant tube cold air shrinkage cracks caused by.
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