PORTABLE CIRCULATION FILTERING DEVICE

To provide a portable circulation filtering device capable of performing grinding, cutting or drilling in a short time and further having satisfactory working efficiency even if an AC power source is used as the power source of a rotary tool.SOLUTION: A portable circulation filtering device 50 comprises, in an enclosure part 51: a water storage tank 52; a storage filtering part 54; a division plate 57; a suction pump 53; a feed pipe 56; a feed pump 55 feeding lubrication water LW; a switching power source 61 switching electricity fed to the feed pump 55 or both of the suction pump 53 and the feed pump 55, from AC to DC; and a control substrate 60, and has: a first space enclosure part 51A including the suction pump 53, the feed pipe 56, the feed pump 55 and the control substrate 60; and a second space enclosure part 51B including the water storage tank 52, the feed pipe 56 and the storage filtering part 54, in which the first space enclosure part 51A and the second space enclosure part 51B are detachably provided.SELECTED DRAWING: Figure 1 【課題】回転工具の電源として交流電源を用いた際にも、研削、切削又は穿孔を短時間で行えると共に、作業効率がよい携帯式循環ろ過装置を提供する。【解決手段】携帯式循環ろ過装置５０は、筐体部５１の内部に、貯水タンク５２と、収納ろ過部５４と、仕切り板５７と、吸引ポンプ５３と、供給パイプ５６と、潤滑水ＬＷを供給する供給ポンプ５５と、供給ポンプ５５、又は、吸引ポンプ５３及び供給ポンプ５５の両方に供給される電気を交流から直流に変換するスイッチング電源６１と、制御基板６０と、を備え、吸引ポンプ５３、供給パイプ５６、供給ポンプ５５、制御基板６０とを有する第１空間筐体部５１Ａと、貯水タンク５２、供給パイプ５６、収納ろ過部５４とを有する第２空間筐体部５１Ｂとを有し、第１空間筐体部５１Ａと第２空間筐体部５１Ｂとが着脱自在に設けられている。【選択図】図１