SUCTION PIPE MECHANISM AND SUBMERGED PUMP

• Main Author: ARAKI SHINICHIRO
• Format: Patent
• Language: English; Japanese
• Published: 13.06.2022
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

To provide a suction pipe mechanism which changes a posture according to a water level, and can suck water at a position lower than a suction port of a submerged pump.SOLUTION: A suction pipe mechanism 20 installed at a suction port 13 of a submerged pump which is arranged in a water tank has a plurality of block parts 21, and a sheet part 22 arranged between at least the plurality of block parts 21. The block parts 21 and the sheet part 22 are changeable in posture between a deployment posture in which the block parts 21 and the sheet part 22 are deployed at a periphery of the suction port 13 by the suction pressure of the submerged pump, the own weights of the block parts 21 and the sheet part 22, and mainly, the buoyance of the block parts 21, and an aggregation posture constituting the suction pipe 25 by the aggregation of the block parts 21 and the sheet part 22 to a lower part of the suction port 13. When a water level of the water tank is equal to or higher than that of the suction port 13, the block parts and the sheet part take the deployment posture, and take the aggregation posture from the deployment posture as the water level becomes lower than the suction port 13.SELECTED DRAWING: Figure 2 【課題】水位に応じて姿勢変更し、水中ポンプの吸込口よりも低い位置において水を吸い込むことができる吸込管機構を提供する。【解決手段】水槽内に設置される水中ポンプの吸込口１３に設けられる吸込管機構２０であって、複数のブロック部２１と、少なくとも当該複数のブロック部２１どうしの間に配設されるシート部２２とを有し、ブロック部２１及びシート部２２は、当該水中ポンプの吸込圧、ブロック部２１及びシート部２２の自重、及び、主にブロック部２１の浮力によって、ブロック部２１及びシート部２２が吸込口１３の周囲に展開された展開姿勢と、ブロック部２１及びシート部２２が吸込口１３の下方に集合して吸込管２５を構成する集合姿勢とに姿勢変更可能であり、水槽の水位が吸込口１３以上であるときは展開姿勢となり、水位が吸込口１３より低くなるにつれて展開姿勢から集合姿勢となるように構成されている。【選択図】図２