| 摘要 |
<p>PURPOSE:To develop an NOx gas burner whose generation of NOx is low and which is suited for use in an absorption type water-cooling/heating machine, absorption refrigerating machine, steam boiler, hot-water boiler, and the like. CONSTITUTION:The gas burner 1 comprises a gas nozzle 4 and a burner cone 5: the gas nozzle 4 has a gas-ejection hole 8 and a baffle plate B7 at the forward end; the burner cone 5 has a baffle plate A6 which forms passageways 9 for primary air for combustion between the circumference of the gas nozzle and itself and through which passageways 10 for secondary air for combustion are opened. The passageways 9 for primary air for combustion are formed in such a manner as to make primary air pass through spaces between the baffle plate A6 and the outer circumference of the gas nozzle and then flow together with fuel gas 3 which has been ejected from the gas-ejection hole 8. The feature of this kind of gas burner is that a baffle plate B7 makes a flow of mixed gas laterally spread and makes part of it mix with secondary air, a portion of the air for combustion supplied.</p> |
