| 摘要 |
This gas mixer (1B) comprises: an inner tube (11) through which a first gas passes; an outer tube (12) that covers the outside of the inner tube (11) and that forms a storage space (13) between the outer tube and the inner tube (11); a supply tube (14) that supplies a second gas (GAII) to the storage space (13); and a guide tube (18) that is arranged inside the inner tube (11) and through which at least the first gas (GAI) passes. The inner tube (11) is provided with a plurality of first introduction holes (20) for introducing the second gas (GAII) in the storage space (13) into a guide space (19) between the guide tube (18) and the inner tube (11). With the gas mixer (1B) configured as above, the distributions of concentration, temperature, and flow velocity can be made uniform, pressure loss can be reduced, and high mixing performance can be maintained even when there are variations in the flow rate or flow velocity of gases to be mixed. |
