JPS6371490U

JPS6371490U -

Info

Publication number: JPS6371490U
Application number: JP16434286U
Authority: JP
Priority date: 1986-10-28
Filing date: 1986-10-28
Publication date: 1988-05-13
Anticipated expiration: 2001-10-28
Also published as: JPH051678Y2

Description

[Brief explanation of the drawing]

第１図は本考案による自吸式遠心ポンプの一例
として示した一枚羽根形遠心ポンプの縦断面図、
第２図は第１図の線―に沿つて切断した横断
面図、第３図は第２図の矢印の方向より見た部
分平面図、第４図は本考案による自吸式遠心ポン
プの他の例として示した縦断面図、第５図は第４
図の線―に沿つて切断した横断面図、第６図
は第５図の矢印の方向より見た部分平面図であ
る。１４，３１……ボリユート形吐出ケーシング、
１５，３３……吐出ノズル、１７，３５……羽根
車、２１，３８……水切り、２４，３９……リブ
。 FIG. 1 is a longitudinal sectional view of a single-blade centrifugal pump shown as an example of a self-priming centrifugal pump according to the present invention.
Fig. 2 is a cross-sectional view taken along the line of Fig. 1, Fig. 3 is a partial plan view taken from the direction of the arrow in Fig. 2, and Fig. 4 is a self-priming centrifugal pump according to the present invention. Another example of a vertical cross-sectional view, FIG.
FIG. 6 is a cross-sectional view taken along the line in the figure, and FIG. 6 is a partial plan view taken from the direction of the arrow in FIG. 14, 31... Volute type discharge casing,
15, 33... Discharge nozzle, 17, 35... Impeller, 21, 38... Drainer, 24, 39... Rib.

Claims

[Scope of utility model registration request]

a volute-shaped discharge casing; a volute-shaped discharge casing rotatably disposed within the volute-shaped discharge casing;
In a self-priming centrifugal pump equipped with an impeller with a small number of blades and a wide blade width, the tip of the water cutter of the volute-type discharge casing is placed as close as possible to the outer circumference of the blades of the impeller, and A self-priming centrifugal pump characterized in that a rib is provided inside the discharge nozzle and extends upward from a drain at the lower end along a plane perpendicular to the axis of the impeller.