| 摘要 |
PROBLEM TO BE SOLVED: To provide a suspending heat transfer tube structure, without causing contact abrasion, even if a winding tube of a dividedly arranged suspending heat transfer tube rocks in the longitudinal direction along a gas flow in a boiler furnace. SOLUTION: A plurality of tubes are suspended by a tube gatherer by respectively bending in a U shape in the same plane. The respective outermost peripheral tubes 10a and 12a of the suspending heat transfer tubes 3 and 4 arranged by two by continuously connecting in the gas flowing direction, are sandwiched so as to cross with the suspending heat transfer tube on the inside of the tubes as the winding tube. The mutual winding tubes on the adjacent side of the two suspending heat transfer tubes are arranged by being dislocated to the suspending heat transfer tube side on the inside by one from the outermost peripheral tubes 10a and 12a, to secure an interval between the two suspending heat transfer tubes of a degree of not contacting by rocking of the tubes. COPYRIGHT: (C)2006,JPO&NCIPI |
