| 摘要 |
A recovery-type furnace for the indirect transfer of heat between two gaseous fluids flowing in opposite directions comprises two heat exchanging units which function alternately as a heating and a heated unit and which operate on a reversing cycle of a few seconds to several minutes. Each exchanging unit is packed with at least one bed of ceramic particles that rest on a metal or ceramic support. The direction of gas flow is controlled by reversing devices so that the hot gaseous fluid flows to the top of the particle bed of the heated unit and, upon cooling, passes through the bed support and from the bottom of the particle bed downwardly through the unit. |
