| 摘要 |
PROBLEM TO BE SOLVED: To obtain a support structure for a panel harp in which difference in heat expansion of an adjacent heating tube panels is allowed to escape, and a stress is not generated in the heat exchanger tube by the tension generated in the heating tube support. SOLUTION: The exhaust gas boiler is provided with selfsupporting panel harps 60, 61 for heat exchanging, in which heat exchanger tubes are arranged in the axial direction of headers 21, 22, opposite to the horizontal flow of waste gas 1. The panel harps 60, 61 are fixed by heat exchanger tube supports, supports 17 for respective adjacent panel harps 60, 61 are connected by a linking support 63. The supporting point of the support 63 is provided in the center in the flow direction of the waste gas of each heat exchanger tube support fin a freely rotatable manner.
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