| 摘要 |
<p>A hollow blade heat-exchange fan includes an outer-rotor motor (1), a heat exchange rotor (2) consisting of a body (21) and blades (22), shaft seals (3), a housing (4) and gas output channels (5). The body (21) has a barrel-shaped structure, the inner cavity of which is axially divided into a plurality of ring regions (A, B, C) by partitions (214, 215). Each region is in communication with each other to form a bended gas flowing channel (I1). The blades (22) for heat exchange between a cold gas and a hot gas are hollow elements which radially traverse the plurality of ring regions (A, B, C) of the body (21) so that heat exchange can take place between the gas inside the blades (22) and the gas outside the blades (22). The blade (22) in the outermost region is designed to be a relatively wide tortuous blade in order to function as an axial flow blade and facilitate installation. Water permeable micro-holes (210) are provided on the partitions (214, 215). The hollow blades (22) and the partitions (214, 215) are both made of metal material with good thermal conduction.</p> |
