| 摘要 |
PROBLEM TO BE SOLVED: To provide an efficient boiler system wherein a horizontal superheater and an economizer are miniaturized without receiving excessive stress. SOLUTION: The boiler system is provided with the horizontal superheater 6 in a rear heating part 2 of a combustion furnace 1. The horizontal superheater 6 comprises a coil part 6a having a heating surface where the flowing direction in the tube is almost horizontal, a hanger tube 7 for supporting the coil part 6a, an upper header 8 and a lower header 5 connected with the hanger tube 7. The hanger tube 7 supports at least two points of the coil part 6a in the horizontal direction. The coil part 6a has enough length in the horizontal direction to absorb the stress caused by the difference of the thermal elongation between the hanger tube 7 and the coil part 6a and to the held without hampering the operation. COPYRIGHT: (C)2004,JPO
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