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Title:
GAS FUEL BURNING DEVICE
Document Type and Number:
Japanese Patent JPS6262114
Kind Code:
A
Abstract:

PURPOSE: To enable production of stable fire flames corresponding to wide operating condition by installing an auxiliary injection hole at the upper flow side or the circumference of a secondary injection hole.

CONSTITUTION: A burning device is constituted of a gas supply nozzle mainbody 17 which has a main injection hole 19 and a large secondary injection hole 27 at the backward side of a tip part in the furnace side, and further has a small secondary injection hole 21 near the large secondary injection hole 27, and a flame holder guide which is placed at the outside of the nozzle mainbody and has a cup-shaped flame holder that has a front opening at a tip part in the furnace side, and one or more air intake holes 24 are formed in the flame holder 25. Gas injected from the small secondary injection hole 21 is quickly diffused and forms a fire flame surface 30 at the small secondary injection hole after gas is reacted with burning air. As gas flow 31 at the large secondary injection hole is covered by the fire flame surface 30 at the small secondary injection hole, the ignition point is in a constant distance from the large injection hole and wavering of flame is small and change of draft in the furnace can be kept in a lower range.


Inventors:
Masai, Tadahisa
Uemura, Toshio
Morita, Shigeki
Nakashita, Shigeto
Application Number:
JP1985000203171
Publication Date:
March 18, 1987
Filing Date:
September 13, 1985
Export Citation:
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Assignee:
BABCOCK HITACHI KK
International Classes:
F23D14/24; F23D14/26; F23D14/70; F23D14/74; (IPC1-7): F23D14/24; F23D14/26; F23D14/70



 
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