| 摘要 |
PROBLEM TO BE SOLVED: To prevent damage of a heat accumulator with high temperature combustion exhaust gas. SOLUTION: A fluid passage of a part connected to an output side of heat storage bodies 3a, 3b located for from a heating furnace 22 is divided into a plurality of zones 2a to 2d along a direction perpendicular to a flowing direction of fluid. Temperature detecting means 4a to 4d for detecting temperature of the fluids flowing through the respective zones are provided at the zones. Flow regulating valves 7a to 7d and flow detectors 6a to 6d are provided at combustion exhaust gas tubes 8a to 8d branched from the respective zones. A flow regulating valve opening control means 9 for controlling openings of the valves 7a to 7d is disposed. |
