System for injecting overfire air into a tangentially-fired furn

Details System for injecting overfire air into a tangentially-fired furn System for injecting overfire air into a tangentially-fired furn

1983-03-10

1987-06-16

Yuen, Henry G.

Furnaces

Utilizing powdered fuel

Having rotary flow means

110265, 110213, 431 9, F23D 100, F23K 100

Patent

active

046729003

ABSTRACT:
A tangentially-fired furnace is disclosed in enough detail to illustrate the location of injection ports for excess air above the fireball of the combustion chamber to eliminate the swirl of the flue gases as the flue gases flow into the convection section, in order to produce a uniform mass flow and temperature pattern of the flue gases over the cross section of the furnace exit.

REFERENCES:
patent: 2483728 (1949-10-01), Glaeser
patent: 3224419 (1965-12-01), Lowenstein et al.
patent: 3688747 (1972-09-01), Connell
patent: 3914090 (1975-10-01), Pfefferle
patent: 4150631 (1979-04-01), Frey et al.
patent: 4177740 (1979-02-01), Lamb et al.
patent: 4246853 (1981-01-01), Mehta
patent: 4252069 (1981-02-01), McCartney
patent: 4367686 (1983-01-01), Adrian
patent: 4438709 (1984-03-01), Borio et al.

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