| 摘要 |
PROBLEM TO BE SOLVED: To efficiently remove mist flown from a wet type exhaust gas desulfurizer at front flow part of a GGH reheater and/or SGH and to prevent corrosion of a heat transfer tube group having fins, provided at the rear flow side of these devices. SOLUTION: As the structure of heat transfer tubes 12-1 of GGH bare tube group and/or heat transfer tube group of SGH 19, the constitution of the bare tubes (heat transfer tubes) 12-1 is built by combining a zigzag arrangement and a parallel arrangement against the gas flow direction, and at least four stages of the heat transfer tubes are arranged in the flow direction of the exhaust gas. |
