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(11) | EP 1 985 926 A3 |
(12) | EUROPEAN PATENT APPLICATION |
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(54) | Combustion equipment and combustion method |
(57) Combustion equipment of a coaxial jet combustion scheme is provided that includes:
a burner plate (11) in which fuel and air are mixed with each other while the fuel
and air pass through an air hole (12); a burner plate extension which is a portion
of the burner plate (11) and extends toward a combustion chamber side spaced apart
from the air hole (12); and a protrusion (1) disposed on the combustion chamber side
of the burner plate extension so as to protrude in a direction where flow of the fuel
moves. In the combustion equipment, a gap between opposite portions of the protrusion
(1) is greater than a diameter of the air hole (12) and a flame source forming area
is defined between the burner plate (11), the burner plate extension and the protrusion
(1). The combustion equipment of a coaxial jet combustion scheme can achieve a further
reduction in NOx emissions.
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