JPH035999U

JPH035999U -

Info

Publication number: JPH035999U
Application number: JP6439089U
Authority: JP
Priority date: 1989-06-01
Filing date: 1989-06-01
Publication date: 1991-01-21
Anticipated expiration: 2004-06-01
Also published as: JPH0736149Y2

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を締す縦断面図、第
２図は第１図のＡ−Ａ線横断面図、第３図は同上
実施例において各邪魔板間に複数の補助ポンプ叶
出孔を穿設した場合を示す第１図のＡ−Ａ線横断
面図、第４図は同上他の実施例を示す縦断面図、
第５図は第４図のＢ−Ｂ線横断面図、第６図は従
来のガスシール型キヤンドモータポンプを示す縦
断面図、第７図は第６図のＣ−Ｃ線横断面図、第
８図は他の従来のガスシール型キヤンドモータポ
ンプを示す縦断面図、第９図は第８図のＤ−Ｄ線
横断面図である。２１……ポンプ部、２２……ガスシール室、２
３……キヤンドモータ部、２５……メカニカルシ
ール、３８……第１の仕切板、４４……補助ポン
プ室、４６……回転軸、４８……軸貫通部隙間、
４９……補助インペラ、４９ａ……補助インペラ
の吸込側、５０……補助ポンプ部、５０ａ……補
助ポンプ部の叶出側、５１……補助ポンプ叶出孔
、５２ａ，５２ｂ，５２ｃ，５２ｄ……邪魔板、
５３……ポンプ取扱液、３８ａ……スリープ、５
４……通孔。 Fig. 1 is a longitudinal cross-sectional view of one embodiment of the present invention, Fig. 2 is a cross-sectional view taken along the line A-A in Fig. 1, and Fig. 3 is a plurality of auxiliary pumps between each baffle plate in the same embodiment. FIG. 1 is a cross-sectional view taken along the line A-A in FIG. 1 showing the case where the leaf opening is bored; FIG. 4 is a longitudinal sectional view showing another embodiment of the same;
Fig. 5 is a cross-sectional view taken along line B-B in Fig. 4, Fig. 6 is a longitudinal cross-sectional view showing a conventional gas seal type canned motor pump, and Fig. 7 is a cross-sectional view taken along line C-C in Fig. 6. , FIG. 8 is a longitudinal cross-sectional view showing another conventional gas seal type canned motor pump, and FIG. 9 is a cross-sectional view taken along the line D--D in FIG. 8. 21... Pump section, 22... Gas seal chamber, 2
3... Canned motor section, 25... Mechanical seal, 38... First partition plate, 44... Auxiliary pump chamber, 46... Rotating shaft, 48... Shaft penetration gap,
49... Auxiliary impeller, 49a... Suction side of the auxiliary impeller, 50... Auxiliary pump section, 50a... Output side of the auxiliary pump section, 51... Auxiliary pump outlet hole, 52a, 52b, 52c, 52d... ...Baffle board,
53...Pump handling liquid, 38a...Sleep, 5
4...Through hole.

Claims

[Claims for Utility Model Registration] A gas seal chamber is airtightly integrated above the pump section, and a rotary shaft, which is sealed with a mechanical seal and projects above the gas seal chamber, is connected to the motor section. In the motor pump, an auxiliary pump chamber is provided between the pump section and the gas seal chamber, and a shaft penetration gap between the rotating shaft and a partition that partitions the auxiliary pump chamber and the gas seal chamber. An auxiliary pump part is constructed by disposing an auxiliary impeller with the suction side facing toward the auxiliary pump chamber, and a plurality of auxiliary impellers that communicate between the protruding side of the auxiliary pump part and the outer diameter side of the gas seal chamber. A gas seal type motor pump, characterized in that a pump outlet hole is formed in the partition body.