DISCHARGE CASING AND VERTICAL TYPE SUBMERSIBLE PUMP INCLUDING THE SAME

PROBLEM TO BE SOLVED: To provide a vertical type submersible pump capable of properly discharging air from the internal space of a pump body when a water level is recovered.SOLUTION: A discharge casing 9 is used in a vertical type submersible pump. A screw part 18b for fastening is formed in at leas...

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Bibliographische Detailangaben
Hauptverfasser:	SAKAGAMI HIROMI, KURITA KANAME, KAWAI MASATO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING HEATING INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 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:	PROBLEM TO BE SOLVED: To provide a vertical type submersible pump capable of properly discharging air from the internal space of a pump body when a water level is recovered.SOLUTION: A discharge casing 9 is used in a vertical type submersible pump. A screw part 18b for fastening is formed in at least part of the outer surface of the discharge casing 9. The screw part 18b for fastening is screwed into a female screw part on the inner surface of an outside casing 24. In the screw part 18b for fastening, at least one air discharge groove 25 crossing the thread of the screw part 18b for fastening is formed. 【課題】水位が復活したときに適切にポンプ本体の内部空間から空気を抜くことができる、立型水中ポンプを提供すること。【解決手段】立型水中ポンプに用いられる吐出ケーシング９であって、この吐出ケーシング９の外面の少なくとも一部には締結用ネジ部１８ｂが形成され、この締結用ネジ部１８ｂは外側ケーシング２４の内面の雌ネジ部に螺合するようになっており、締結用ネジ部１８ｂにはこの締結用ネジ部１８ｂのネジ山を横切る少なくとも１つの空気抜き溝２５が形成されている。【選択図】図２