PREMIXING GAS BURNER

PURPOSE:To permit combustion at an area which air ratio of premixing gas is large and permit reduction in NOx by a method wherein side walls providing a flame port are opposed with a fixed distance through an air gap and a bottom wall is provided on the above-mentioned air gap while a combustion chamber is formed with the side walls and the bottom wall, then, a flame base section is formed with the bottom wall of the flame port. CONSTITUTION:Premixing gas 10 is supplied from a premixing gas inlet part to a mixing chamber 9 and is supplied to many fuel parts 8 uniformly. Thereafter, it is supplied from flame ports 16, 17 to a combustion chamber 19 to born. The flame ports 16, 17 are opposed to the combustion chamber 19 consisting of the air gap between and the premixing gas is ejected from the opposing flame ports to collide in the combustion chamber. In case the premixing gas 10 ejected from the opposing flame ports 16, 17 to the combustion chamber are ignited, opposing flames 20 are formed. At this time, in case the premixing gases 10 are laminar flow, the stable opposing flames 20 are formed. The flame base section 23, 24 continued with the opposing flames are formed in the vicinity of the bottom wall 18 in the flame ports 16, 17 and the stable opposing flame may be obtained.