| 摘要 |
PURPOSE:To prevent trouble and abnormality due to the fragments and power of a reforming catalyst generated in operation from their occurrence by opening the upper end of a plug pipe in an inner pipe, and providing a baffle body in the opening in the title double-pipe fuel reformer. CONSTITUTION:The upper end of the pipe plug 20 arranged concentrically in the inner pipe 2b is opened, and the lower end is closed. A baffle body 21 is fixed on the upper end of the inner pipe 2b. The inner pipe 2b is extended inward in the radial direction, about the middle is opened 21, and an extension 22 is extended into the opening of the plug pipe 20 from the edge of the opening. The raw gas is introduced into an annular reaction chamber 3 from a supply port 9 and sent upward, the heat is exchanged with the heat of the combustion gas of a burner 17, hence the raw gas is reformed, and the reformed gas is reversed at the upper end of the pipe 2 and introduced into the pipe 20 from the opening 21a along the extension 22. The reformed gas is again sent upward, passed between the extension 22 and the pipe 20, and discharged from an outlet 13. At this time, even if the fragments and powder of the reforming catalyst 5 are mixed into the raw gas entering the pipe 20, the fragments and powder are dropped into the pipe 20 and not carried to the downstream side. |
