| 摘要 |
PURPOSE: A hot-air blower is provided to improve the combustion efficiency by performing complete combustion of oil. CONSTITUTION: A hot-air blower is composed as follows: A main body comprises a combustion chamber and a heating chamber. A fan is formed in one side of the heating chamber, and a hot-air outlet is formed in the other side of the heating chamber. A flue communicated with the combustion chamber is drawn out to outside. An outlet(131) of a burner discharges gas in which oil and first air are mixed. An ignition unit is arranged around the outlet. A duct pipe(14) is protruded from the outlet. A red heating pipe(15) is red-heated by being contacted with flame created from the outlet. An auxiliary duct(16) controls the opening and closing degree through a control unit(161). The inner diameter(152) of the red heating pipe is bigger than the outer diameter(131a) of the outlet. |
