Ignition device for fluidized bed boiler

Details Ignition device for fluidized bed boiler Ignition device for fluidized bed boiler

1985-02-15

1986-09-02

Makay, Albert J.

Liquid heaters and vaporizers

Miscellaneous

110245, 110250, 110263, 431 28, 432 58, F23B 102

Patent

active

046089446

ABSTRACT:
The present invention concerns an ignition device for igniting fuel within a heating boiler having a combustion section operating according to the fluidized bed principle. The ignition device comprises a jacket-like body portion with a surface facing away from the fluidized bed of particles such as sand being furnished with a heating member, and the surface of the jacket-like body portion facing the fluidized bed of particles having heat transfer elements. The heat transfer elements may be rib-shaped, while a lagging or equivalent structure may encircle the ignition device, to form an intermediate space therebetween through which combustion gas is arranged to flow into the jacket-like body portion. A member for pre-heating the combustion gas flowing through this intermediate space, may also be provided, which is in turn cooled by the inflowing combustion gas.

REFERENCES:
patent: 4183308 (1980-01-01), Toth
patent: 4249472 (1981-02-01), Mitchell
patent: 4249889 (1981-02-01), Kemp
patent: 4308810 (1982-01-01), Taylor
patent: 4392818 (1983-07-01), Wunning
patent: 4407355 (1983-10-01), Bonn et al.
patent: 4408984 (1983-10-01), Forster
patent: 4416418 (1983-11-01), Goodstine et al.

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