PROBLEM TO BE SOLVED: To provide an oxygen tank unit for an oxygen concentrator, allowing simplification of a configuration of the periphery of an oxygen tank body and unitization.SOLUTION: The oxygen concentrator has: a single oxygen tank body 51 connected to a pair of nitrogen adsorption containers alternately receiving supply of compressed air check valves 60 interposed between the oxygen tank body and the pair of nitrogen adsorption containers, allowing a gas flow from the nitrogen adsorption containers to the oxygen tank body, and not allowing a gas flow reverse thereto and a pressure reducing valve 70 connected to the oxygen tank body, and having an oxygen outlet. In the oxygen concentrator, at least one of a pair of nitrogen adsorption container-connecting tube bodies 60 each including the check valve and the pressure reducing valve 70 is directly installed onto the wall surface of the oxygen tank body to form this oxygen tank unit 50 for the oxygen concentrator.COPYRIGHT: (C)2013,JPO&INPIT【課題】酸素タンク本体回りの構成を単純化しユニット化できる酸素濃縮装置用酸素タンクユニットを提供する。【解決手段】交互に圧縮空気の供給を受ける一対の窒素吸着容器に接続される単一の酸素タンク本体51と、この酸素タンク本体と一対の窒素吸着容器との間に介在させた、該窒素吸着容器から酸素タンク本体への気体流を許し、その逆の気体流を許さない逆止弁60と、上記酸素タンク本体に接続される、酸素出口を有する減圧弁70とを有する酸素濃縮装置において、逆止弁を備えた一対の窒素吸着容器接続筒体60と減圧弁70の少なくとも一方を、酸素タンク本体壁面に直接取り付けて酸素濃縮装置用酸素タンクユニット50とした構成とする。【選択図】図3
