PACKING DEVICE FOR GAS SUPPLY TO FURNACE OR SIMILAR MECHANISM Russian patent published in 2011 - IPC C23C16/22 C21D1/767 C21D9/00 F27D9/00 F27B5/04 

FIELD: machine building.

SUBSTANCE: furnace consists of case wherein there is installed reaction chamber (16) and of gas pipe (12) for supply of gas into furnace located between external part of furnace and internal part of furnace and ending at one end at least near gas-inlet channel (14) in reaction chamber (16). Tubular packing device (32) is located radially outside relative to gas pipe (12). Also, tubular packing device is attached in a gas-proof way to the first end of gas pipe (12) at the section of internal surface of the furnace near the section where the gas pipe enters the furnace and passes in the direction of the section near gas-inlet channel (14) whereto the said packing device is attached pressure tight. Notably, tubular packing device (32) is made in form of a tubular casing possessing cross and/or axial flexibility. The casing is located around transition between pipe (12) and channel (14) and contains flexible axial part (32a) and relatively rigid axial part (32b).

EFFECT: facilitation of furnace complete sealing.

7 cl, 3 dwg