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Gentlemen, for self-supporting steel chimneys with an inner tube, is the flange connection method better or the welding method? Is it better to use 8+2 composite panel material for the inner cylinder, or 10-millimeter stainless steel material? Please give me some advice!
Based on the height of the steel chimney, a flange connection is generally used. Is it better to use 8+2 composite panel material for the inner cylinder, or 10-millimeter stainless steel material? Unless you are extremely wealthy, you can choose stainless steel.
Even when using composite panels, depending on the height of the steel chimney, the lower section can be made of ordinary carbon steel resistant to corrosion, protected with glass phosphide sheets, while the upper section can use composite panels. This is because as the flue gas rises, its temperature drops, resulting in the formation of a small amount of weakly acidic condensate at the chimney outlet, which can cause corrosion as it flows downward.
1 Regardless of the form or material used, anything that exists has its rationale; therefore, making judgments without considering specific circumstances would be biased. 2 The choice of material depends on the operating conditions, with a balance needed to be struck between lifespan and cost-effectiveness. 3 It was recently reported that stainless steel was used for chimney construction in a war-torn area abroad; from our perspective here at home, this is not necessary, but considering lifespan guarantees and replacement costs, a higher-quality material was chosen. There are various options available for the material of the chimney. As suggested by the friend on the 3rd floor, it would be advisable for the property owner to consider their own specific circumstances and determine which factor should be given priority before choosing a suitable option.
I’ve learned it; I’d like to hear what the person on the third floor said about glass scales
My original chimney, which was less than 60 meters tall, used flange connections; stainless steel materials are a bit expensive, so it’s generally not necessary to use them
What is the structure of the flange connection area?