PUMP BLADE FOR SUBMERSIBLE PUMP AND SUBMERSIBLE PUMP INCLUDING THE SAME

• Main Authors: SAKAGAMI HIROMI, ISONO MIHO, OBUCHI SHINJI, UCHIDA HIROSHI, KAWAI MASATO
• Format: Patent
• Language: English; Japanese
• Published: 22.01.2015
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

PROBLEM TO BE SOLVED: To provide a pump blade for a submersible pump that can cancel or reduce a radial load.SOLUTION: A pump blade for a non-clog type submersible pump comprises: a nearly cylindrical body part; a suction port 15 provided at the center of a lower end surface of the body part; discharge ports 17A and 17B opened in a side surface of the body part; and flow passages 13A and 13B that allow the suction port to communicate with the discharge ports inside the body part. The number of the flow passages 13A and 13B is two or more, and the dimensions, shapes, and positions of the flow passages are set so as to reduce fluid imbalance with respect to a rotation axis C. 【課題】ラジアル荷重を解消或いは低減できる、水中ポンプのポンプ羽根を提供すること。【解決手段】略円筒状の本体部と、本体部の下端面の中央に設けられた吸込口１５と、本体部の側面に開口する吐出口１７Ａ，１７Ｂと、本体部の内部で吸込口から吐出口に連通する流路１３Ａ，１３Ｂとを備えるノンクロッグ型の水中ポンプ用ポンプ羽根であって、流路１３Ａ，１３Ｂの数は複数本あり、これらの流路は回転軸線Ｃに関して流体アンバランスを低減させるように、流路の寸法、形状及び位置が設定されている。【選択図】図２