| 摘要 |
PURPOSE:To obtain the fuel reformer capable of uniformly heating a reforming tube with combustion gas by providing a burner cylinder hung from the periphery of a burner and a combustion cylinder erected from the bottom of a furnace vessel, forming a heating medium passage with the lower part of the burner cylinder and enclosing the cylinder. CONSTITUTION:A flame and combustion gas are produced by the combustion in a burner 2, the flame is extended downward in a burner cylinder 21, reversed at its lower end into a combustion gas passage 23 and passed through the passage 23 to cause complete combustion, but the flame is not extended to the outside of the passage 23. Accordingly, only the combustion gas is discharged from the passage 23, reversed at the upper end of the combustion cylinder 22, passed between the cylinder 22 and a partition wall 4 and introduced into a heating chamber 10. Consequently, the combustion gas is uniformly distributed into the heating chamber 10, a catalyst bed 14 in the reforming tube 13 arranged in the chamber 10 is not overheated by the flame, the catalyst bed 14 is uniformly heated by the combustion gas uniformly introduced into the bed 14, and the temp. in the circumferential direction is uniformly distributed. |
