| 摘要 |
PROBLEM TO BE SOLVED: To provide a boiler that uses regenerative heat burner with less damage of boiler tubes at the superheater. SOLUTION: In a radiation heat transfer 1, a regenerative heat burners 4 and 6 are combusted and the exhaust gas are practically absorbed by opposing regenerative heat burners 5 and 7. The exhaust gas of the regenerative heat burners of the radiation heat transfer part 1 does not flow into the superheater part 2 except for the heat transferring by convection and diffusion. Therefore, as the temperature of the combusting flame of the regenerative burner 4 to 7 does not influence the boiler tubes 3 inside the superheater part 2, increasing the temperature of the combustion flame of the regenerative burners 4 to 7, the efficiency of generating steam at the radiation heat transfer part 1 can be improved. The regenerative burners 11 to 14 heat the boiler tubes 3 at the superheater part 2. The combustion flame temperature of the regenerative burner 11 to 14 is held lower enough not to damage the boiler tubes 3. |
