| 摘要 |
The device consists of at least two regenerative heat-exchanging units for alternate use, which are connected with combustion device. Each heat-exchanging unit is equipped with storage space (15) for storing heat-exchanging basic granules. The heat-exchanging unit (14) consists of a casing, in which there are separation walls (23, 22). In the lower space there is a pipeline (26) for feeding air, and a pipeline for combustion gases discharge. In the upper space there are similar pipelines (12) and (13). The heat-exchanging unit is connected to a unit (27) for regeneration of the basic granules. The transport of granules is provided for by conveyors (28, 29, 30). In the upper space of the heat-exchanging unit as well as in the lower space there are switching valves (21, 24) for alternative distribution of air and combustion gases.<IMAGE>
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