| 摘要 |
<p>PURPOSE:To increase thermal efficiency and to exclude pollution from the air in a room, by a method wherein the exhaust air passage from a heat source is consisted as a heat exchanger, and the length of the heat exchanger passage is extended, in a heating equipment of warm-air blowing-off type. CONSTITUTION:The exhaust gas after combustion in a heat source 1 is discharged to the outside of a room through an exhaust duct 2, one end of which is connected to an exhaust outlet 11 through a fan unit 4, and the other end is opened to the outside of a room. The exhaust duct 2 is the inner tube of a double pipe, wherein the outer pipe is a heat exchanger duct 3. The fn unit 4 is provided with the first elbow 12 of a large diameter, and the second elbow 13 of a small diameter, and to one end of the first elbow 12, a heat exchanger duct 3 is connected, while to the other end, an air blower duct 5 is connected. The other end of the air blower duct 5 is opened to the inside of the room. The air blower duct 5 is provided with flexibility and its blowing direction is variable. With the arrangement mentioned above, the thermal efficiency can be increased, and thereby pollution of the air in the room can be removed.</p> |
