FIRE-CHAMBER WITH A SPOUTING BED Russian patent published in 2005 - IPC

Abstract RU 2249763 C1

FIELD: heat power engineering; fire-chambers with spouting beds.

SUBSTANCE: the invention is dealt with the field of fire-chambers with spouting beds and may be used in heat power engineering. The fire-chamber with a spouting beds contains a cylindrical combustion-chamber made with the height of its cylindrical part making 10-15 % of the height of the conical part, and at an angle of inclination of the conical part wall in respect to the vertical equal to 10-20°, and the height of the conical part making 3-5 its average internal diameters. Under the combustion chamber there is an ignition chamber with the tangential connecting pipes to supply air and flue gases and the injector for a preliminary ignition of a comminuted fuel. As the speeds of a gas stream along the height of the combustion chamber are various, then particles of the fuel depending on their sizes are located in the conical part according to values of the speeds of their liquefaction and airborne. The Particles of fuel burning down are flying to the stabilizer-deflector made in the form of a radial shutters. At that a part of them is deflected and refunded into the conical part. The particles having passed through the stabilizer-deflector together with the flue gases are driven into the high-temperature cyclone separator located outside the fire-chamber. The trapped solid phase is returned into the lower conical part of the combustion chamber. Control over the time of the polydipersed fuel particles staying there is exercised by moving the stabilize-deflector in the vertical direction. The design of the fire-chamber with spouting beds ensures efficient incineration of a polydispersed fuel with a different heat of combustion.

EFFECT: the inventions ensure efficient incineration of a polydispersed fuel with a different heat of combustion.

3 cl, 1 dwg

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RU 2 249 763 C1

Authors

Shchapov Ju.S.

Blokhin A.I.

Shchapov A.Ju.

Karev A.N.

Stel'Makh G.P.

Dates

2005-04-10Published

2004-05-24Filed