GB191328049A - Improvements in Regenerative Gas Furnaces. - Google Patents

Abstract

28,049. Siemens, F. K. Dec. 5. [Addition to 10,824/12 and 17,956/13.] Reverberatory a n d open-hearth furnaces.- Comprises constructions embodying the method of heating described in the parent Specifications. In the furnace shown in Fig. 1, air from the heated chamber b divides into two portions, a small part passing through the conduit e to initiate combustion in the gas-port a, while the remainder passes through the opening cl to the air-port f. A portion of this stream passes round the partition i to the cold chamber, and burns therein with a quantity of gas diverted from the gas - port through the corresponding conduit e. Dampers may be provided in the conduits e so that, when desired, access of air to the gas-flue may be prevented. In the form shown in Fig. 4, the streams of air and gas from the hot chambers 1, 4 respectively divide, part passing through the openings 7, 9 to the cold chambers 3, 2, while the remainder passes to the furnace ports 8, 10, further portions being here diverted to burn in the cold chambers as indicated by the arrows. In another construction, Figs. 6 and 7, in which the air-chambers 1, 2 are situated in front of the gas-chambers 3, 4, the streams of hot air and gas from the chambers 1, 4 divide as before, part passing to the cold chambers while the remainder passes to the furnace ports 8, 10, further portions here being diverted round the partition walls 12. The depending arches shown in Fig. 6 projecting into the chambers 1, 3 may be omitted so that the diverted portions of air and gas pass immediately from one chamber to the other. In another form, Fig. 11, in which the producer 16 forms an integral part of the furnace structure, air from the hot chamber 1 passes through ports 18 to the space 20 above the fuel-bed. The main bodies of both air and gas pass along the furnace hearth, and a small portion burns in the space 20, while the remaining portions pass through ports 21 to the cold chamber 2. The chambers 1, 2 may be connected by a flue, so that, when desired, pure air may be passed direct from the hot chamber to the cold one.