| 摘要 |
PURPOSE:To make a generator compact in size by attaching a combustion of a vaporizing combustion chamber to a combustion tube of a heat exchanger, and setting up this heat exchanger and a centrifugal blower, feeding it with heating air, on an almost straight line. CONSTITUTION:A vaporizing combustion chamber 2 is set up in a longitudinal side face of a heat exchanger 3, while a combustion cylinder 7 or a delivery passage for combustion gas of this combustion chamber 2 is attached to the heat exchanger 3 at an almost right angle, and the heat exchanger 3 and a blast blower 4 both are set up on an almost straight line through a draft air duct 15. In addition, a blast passage 49 being situated at the downstream of the heat exchanger 3 is also formed on the straight line over a certain degree of length. In brief, since the blast blower 4 and the blast passage 49 are set up on an extension in the longitudinal direction of the heat exchanger 3, it is constituted so as to make air flow resistance extremely smaller. Consequently, heating air is able to flow smoothly and largely in terms of flow rate. For this reason, the blast blower 4 itself can be made up compact in size, so that compactification for a hot air generator is well promoted. |
