JPS5927187U

JPS5927187U - vortex pump

Info

Publication number: JPS5927187U
Application number: JP12280582U
Authority: JP
Inventors: 水野　康一
Original assignee: 松下電器産業株式会社
Priority date: 1982-08-12
Filing date: 1982-08-12
Publication date: 1984-02-20

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の渦流式ポンプの羽根車回りの断面図、第
２図は第１図の正面図、第３図は本考案の一実施例の渦
流式ポンプの羽根車回りの断面図、第４図は第３図の正
面図、第５図は羽根車回りの圧力を表わすグラフ、第６
図は従来の渦流式ポンプと本考案の渦流式ポンプの揚水
性能の比較を表わすグラフ、第７図は本考案の他の実施
例を表わす羽根車回りの断面図である。８・・・・・・羽根車、８′・・・・・・環状突部、１
０・・・・・・凹部、１１・・・・・・ケーシング、１
１′川…環状の凹部、１３・・・・・・ケーシングカバ
ー、１３′・・・・・・環状の凹部、１４・・・・・・
水通路、１５．１６・・・・・・隙間、１５’、１６’
・・・・・・隙間。FIG. 1 is a sectional view of the area around the impeller of a conventional vortex pump, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a sectional view of the area around the impeller of a vortex pump according to an embodiment of the present invention. Figure 4 is a front view of Figure 3, Figure 5 is a graph showing the pressure around the impeller, and Figure 6 is a graph showing the pressure around the impeller.
The figure is a graph showing a comparison of pumping performance between a conventional vortex pump and the vortex pump of the present invention, and FIG. 7 is a sectional view of the impeller and its surroundings showing another embodiment of the present invention. 8... Impeller, 8'... Annular protrusion, 1
0...Recess, 11...Casing, 1
1' River...Annular recess, 13...Casing cover, 13'...Annular recess, 14...
Water passage, 15.16...Gap, 15', 16'
······gap.

Claims

[Scope of utility model registration request]

A disk-shaped impeller is provided with a plurality of recesses on both sides of the outer periphery, and an annular protrusion concentric with the rotation center of the impeller is provided on both sides of the impeller at a portion closer to the rotation center of the impeller than the recesses. A vortex pump characterized in that annular recesses are provided on inner surfaces of a casing for housing an impeller and a casing cover, each of which faces the annular protrusion of the impeller with a small gap.