TUBULAR GAS HEATER Russian patent published in 2011 - IPC F24H3/00 

FIELD: power industry.

SUBSTANCE: in tubular gas heater representing vertical design, containing inlet non-purified gas header, outlet non-purified gas header installed in caisson, purified gas supply headers, gas burners and heating furnace the inner space of which is divided into radiation, mixing, convection chambers, and tubular system of heating furnace, which is located between outlet header and inlet header of non-purified gas, consists of a row of parallel lines the radiation part of which represents parallel vertical tubes, convection part is made in the form of parallel coils formed with horizontal heat exchange tubes connected by means of return bends equipped with studs fixed in seats of side panels; extreme lower heat exchange tubes of coils form elastic loops having the possibility of being moved in lower seats of side panels made in the form of vertical slots.

EFFECT: improving operating reliability of heater due to compensation of thermal deformation of high heated part.

5 cl, 4 dwg