| 摘要 |
<p>PURPOSE:To effect clean warm air room heating and improve room heating effect due to radiation by a method wherein a part of air, ventilated by a warm air ventilating fan, is supplied to the upper part of a flame port member having a long horizontal length as the secondary air for combustion. CONSTITUTION:When liquid fuel and primary combustion air are sent forcibly into an evaporating chamber 30, whose peripheral wall is preheated by an electric heater 36, premixed gas is ejected into a combustion tube 46 through an introduction path 38 and primary combustion, forming linear blue fire combustion flame 40 at the upper surface of the flame port member 39, is effected. Most of the airflow, generated by the ventilating fan 58b, joins with combustion gas discharged out of the combustion tube 46 and is sent out of a warm air discharging port 60 as warm air. A part of it is introduced into a secondary air supplying path Y through a multitude of introducing holes 57 and is supplied as secondary combustion air to the upper part of the combustion flame 40 through secondary air holes 53, 53,... of 1.2-3mm. in radius. According to the supply of secondary combustion air, generation of CO may be restricted, red-hot condition of a red- hot member 49 may be maintained in a very good condition and the room heating effect due to radiation may be improved remarkably.</p> |
