| 摘要 |
<p>A humidifier includes a rotating circular base plate (12) driven by a motor (30) through a gear reduction mechanism (28). A plurality of elongated troughs (14) are mounted in a spaced circular array adjacent a periphery of the base plate (12), such that outer edges of the trough (14) are disposed on the surface of a cylinder. A centrally disposed drive shaft (18) extends axially from the base plate (12) and includes a plurality of radially extending circumferentially spaced fins (20, 22, 24, 26). The rotating base plate (12) and attached troughs (14) are mounted in a housing (32) having an inlet duct (42) and an outlet duct (44) connected in a cold air return duct of a conventional forced air type furnace. A water tank (34) disposed in the bottom of the housing is connected by a float valve (38) to a water supply source (36) such that a constant water level is maintained in the tank. As the base plate (12) rotates, the troughs (14) scoop off water, carry it upwardly into the air flow path, and gradually spill the water to create a waterfall in the air flow path. The radial fins (20, 22, 24, 26) on the drive shaft (18) create turbulence in the air flow patch to maximize the amount of moisture entrained in the air flow stream.</p> |
