BOILER Russian patent published in 2010 - IPC F22B21/34 

FIELD: heating systems.

SUBSTANCE: invention is intended for heating heat carrier and can be used at thermal power stations and heating plants. Boiler includes furnace with bottom, fuel pipeline and air pipeline, and afterburning chamber with division water walls located between internal annular water wall and external water walls, as well as convective heating surfaces located in boiler flue gas duct above afterburning chamber, louvre grid, attachment points of water walls and support of boiler. Afterburning chamber is made in the form of support unit with division water walls in the form of annular row of screened supports connecting by means of attachment points the internal and external water walls located in a circumferential direction in a common honeycomb ring-shaped structure resting on annular row of boiler supports with screened supports or by means of attachment points of the latter to external water walls.

EFFECT: invention provides reduction of costs and erection periods.

2 cl, 3 dwg