VERTICAL SHAFT PUMP

To provide a vertical shaft pump which suppresses film vibrations of pump piping due to pressure pulsation of a pump installed on the vertical shaft pump.SOLUTION: A vertical shaft pump 100 has a pump 30 which has an impeller 1 and a pump casing 2 covering the impeller; a suction port 6 which is cou...

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Bibliographische Detailangaben
Hauptverfasser:	NARUSE TOMOHIRO, TSUNOKAKE HIROKI, MIYAJI TAKAYOSHI, HARAGA HIROKAZU, MITSUHASHI YUKI
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 vertical shaft pump which suppresses film vibrations of pump piping due to pressure pulsation of a pump installed on the vertical shaft pump.SOLUTION: A vertical shaft pump 100 has a pump 30 which has an impeller 1 and a pump casing 2 covering the impeller; a suction port 6 which is coupled with the pump casing through a fastening portion 3, and sucks a fluid; pump piping 4 which is coupled with the pump casing through the fastening portion, and circulates the fluid; a discharge casing 11 which is coupled with the pump piping through the fastening portion, and circulates the fluid to a discharge port for discharging the fluid; and a non-resonance ring 20 which is formed in a circumferential direction of the pump piping on the outside of the pump piping.SELECTED DRAWING: Figure 1 【課題】本発明は、立軸ポンプに設置されるポンプの圧力脈動に起因するポンプ配管の膜振動を抑制する立軸ポンプを提供する。【解決手段】本発明の立軸ポンプ１００は、羽根車１とこの羽根車を覆うポンプケーシング２とを有するポンプ３０と、ポンプケーシングと締結部３を介して連結し、流体を吸い込むための吸込口６と、ポンプケーシングと締結部を介して連結し、流体を流通するためのポンプ配管４と、ポンプ配管と締結部を介して連結し、流体を排出する排出口に、流体を流通するディスチャージケーシング１１と、を有し、ポンプ配管の外側であって、ポンプ配管の円周方向に形成された避共振リング２０を有する。【選択図】図１