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Posted by t. suan on March 10, 2002 at 05:42:58:
In Reply to: Corrugated Furnaces vs. Straight Furnaces with Bowling Hoops posted by Fahim I Siddiqui on March 08, 2002 at 03:37:26:
: My company is interested in buying a 15TPH, 3 pass, wet-back, smoke tube boiler.
: One of the decisions we need to make is whether the furnace should be of corrugated design, or should have bowling hoops. Is there an advantage of one kind over another? I am told a furnace with bowling hoops is easier to repair, as for the greater portion of its length it consists of straight rolled plate. Could you please advise on this matter?
Some engineer prefer corrugated furnace or bowling
hoop when the operating pressure is higher than
17 bar or 250 psig on boiler capacity larger than
15t/h. This is because it allow the furnace to
expand more easily. As boiler with corrugated or
bowling hoop are more expansive than the straight
furnace, it is, therefore, not economical for small
boilers. In my personal opinion, the boiler should
scrap after furnace failure because the cost repair
is usually very high. Replacement of boiler tubes
is more common.
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