PUMP DEVICE

To provide a pump device that can reduce vibration and noise emitted from the pump device even when a pump device includes multiple motor pumps.SOLUTION: A pump device 100 includes multiple pump units 1A, 1B, 1C sequentially connected to each other in series. Each pump unit 1 includes: an impeller 1...

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Bibliographische Detailangaben
Hauptverfasser:	KOMAI MASAKAZU, YAGI KAORU, WATANABE YASUAKI, NAKAZAWA TOSHIHARU, KURONUMA TAKAYUKI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	To provide a pump device that can reduce vibration and noise emitted from the pump device even when a pump device includes multiple motor pumps.SOLUTION: A pump device 100 includes multiple pump units 1A, 1B, 1C sequentially connected to each other in series. Each pump unit 1 includes: an impeller 14 in which a magnet 5 is embedded; a motor stator 6 disposed in a position of being opposed to the magnet 5; an inverter device 7 connected to the motor stator 6; a pump casing 2 for accommodating the impeller 14; and a motor casing 3 for accommodating the motor stator 6. At least one pump unit 1 of the multiple pump units 1A, 1B, 1C is operated so that the impeller 14 thereof is turned at a rotational speed which is different from rotational speeds of impellers 14 of the rest of the pump units 1.SELECTED DRAWING: Figure 2 【課題】複数のモータポンプを備えるポンプ装置であっても、該ポンプ装置から発生する振動と騒音とを低減できるポンプ装置を提供する。【解決手段】ポンプ装置１００は、直列に連続して接続される複数のポンプユニット１Ａ，１Ｂ，１Ｃを備える。各ポンプユニット１は、磁石５が埋設される羽根車１４と、磁石５に対向する位置に配置されるモータ固定子６と、モータ固定子６に接続されるインバータ装置７と、羽根車１４を収容するポンプケーシング２と、モータ固定子６を収容するモータケーシング３と、を備える。複数のポンプユニット１Ａ，１Ｂ，１Ｃのうちの少なくとも１つのポンプユニット１は、その羽根車１４の回転速度が残りのポンプユニット１の羽根車１４の回転速度と異なるように運転される。【選択図】図２