PROBLEM TO BE SOLVED: To provide an air blower capable of generating airflow efficiently even at a relatively low-temperature heat source to accelerate dryness without giving influence of strong radiation to an object to be dried in a lean gas, and also capable of being easily assembled into an existing refrigeration vacuum dryer.SOLUTION: An air blower 3 feeds air to an object 16 to be dried in a vacuum chamber 1. The air blower 3 includes a plurality of rod-like members 7 extending from an airflow inlet 9a toward an airflow outlet 9b and arranged in parallel, and a heating body 10 configured to heat a base end part 7a positioned on a downstream side of airflow in the rod-like member 7. At a tip part 7b of the rod-like member 7, an edge 15 is formed.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】希薄気体内で乾燥対象物に輻射の強い影響を与えることなく、比較的低温の熱源でも効率よく気流を起こして乾燥を促進させることができ、しかも、既存の冷凍真空乾燥機に容易に組み込むことができる送風器を提供する。【解決手段】送風器3は、真空室1内で乾燥対象物16に送風する。送風器3は、気流入口9aから気流出口9bに向かって延びて互いに平行に配置された複数の棒状部材7と、棒状部材7における気流の下流側に位置する基端部7aを加熱する加熱体10とを備えている。棒状部材7の先端部7bに、エッジ15が形成されている。【選択図】図2
