JPH0465984U - - Google Patents
Info
- Publication number
- JPH0465984U JPH0465984U JP10700990U JP10700990U JPH0465984U JP H0465984 U JPH0465984 U JP H0465984U JP 10700990 U JP10700990 U JP 10700990U JP 10700990 U JP10700990 U JP 10700990U JP H0465984 U JPH0465984 U JP H0465984U
- Authority
- JP
- Japan
- Prior art keywords
- impeller
- chamber
- gas seal
- pump
- sub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005192 partition Methods 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 3
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
Description
第１図は本考案をガスシール型キヤンドモータ
ポンプに適用した一実施例を示す要部拡大断面図
、第２図および第３図は同上他の実施例を示す要
部拡大断面図、第４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５図および
第６図はそれぞれ他の従来のガスシール型キヤン
ドモータポンプを示す要部拡大断面図である。
１……ポンプ部、２……ガスシール室、３……
キヤンドモータ部、５……メカニカルシール、６
……ポンプ室、９……回転軸、１１……仕切体、
１６……主インペラ、１９……バランスホール、
２０……主インペラの吸込側、２５……副インペ
ラ、２６……複合インペラ、２７……副インペラ
の吸込側、２８……内径側オリフイス、２９……
外径側オリフイス、３１……圧力バランス室。
Fig. 1 is an enlarged sectional view of the main part showing an embodiment in which the present invention is applied to a gas seal type canned motor pump, and Figs. 2 and 3 are enlarged sectional views of the main part showing other embodiments of the same. FIG. 4 is a vertical sectional view showing a conventional gas seal type canned motor pump, and FIGS. 5 and 6 are enlarged sectional views of essential parts of other conventional gas seal type canned motor pumps. 1... Pump section, 2... Gas seal chamber, 3...
Canned motor section, 5... Mechanical seal, 6
... Pump chamber, 9 ... Rotating shaft, 11 ... Partition body,
16...Main impeller, 19...Balance hole,
20... Suction side of main impeller, 25... Sub-impeller, 26... Composite impeller, 27... Suction side of sub-impeller, 28... Inner diameter side orifice, 29...
Orifice on the outer diameter side, 31...pressure balance chamber.
Claims (1)
構成し、メカニカルシールにて軸封して前記ガス
シール室の上方へ突出させた回転軸をモータ部に
連結してなるガスシール型モータポンプにおいて
、 前記ポンプ部のポンプ室内に吸込側を下側にし
て主インペラを配設し、この主インペラの後面側
に副インペラを一体に設けて複合インペラを形成
し、前記ポンプ室と前記ガスシール室とを区画す
る仕切体と前記副インペラとの間に、狭い環状隙
間の内径側オリフイスおよび外径側オリフイスを
形成して、前記副インペラの吸込側を前記ガスシ
ール室側へ開口連通するとともに前記両オリフイ
スと前記仕切体および前記副インペラとで囲繞し
た圧力バランス室を形成し、この圧力バランス室
を前記複合インペラに穿設したバランスホールを
介して前記主インペラの吸込側に連通したことを
特徴とするガスシール型モータポンプ。[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 gas seal type motor pump, a main impeller is arranged with the suction side facing downward in the pump chamber of the pump part, and a sub-impeller is integrally provided on the rear side of the main impeller to form a composite impeller, An inner diameter side orifice and an outer diameter side orifice with a narrow annular gap are formed between the partition body that partitions the pump chamber and the gas seal chamber and the sub impeller, and the suction side of the sub impeller is sealed with the gas seal. A pressure balance chamber is formed which communicates with the chamber side and is surrounded by the two orifices, the partition body, and the sub-impeller, and this pressure balance chamber is connected to the main impeller through a balance hole bored in the composite impeller. A gas seal type motor pump characterized by communication with the suction side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990107009U JP2519466Y2 (en) | 1990-10-12 | 1990-10-12 | Gas seal type motor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990107009U JP2519466Y2 (en) | 1990-10-12 | 1990-10-12 | Gas seal type motor pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0465984U true JPH0465984U (en) | 1992-06-09 |
| JP2519466Y2 JP2519466Y2 (en) | 1996-12-04 |
Family
ID=31853330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990107009U Expired - Lifetime JP2519466Y2 (en) | 1990-10-12 | 1990-10-12 | Gas seal type motor pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2519466Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001114705A (en) * | 1999-10-12 | 2001-04-24 | Nippon Shokubai Co Ltd | Method for easily transporting polymerizable compound |
| JP2012097695A (en) * | 2010-11-04 | 2012-05-24 | Furukawa Industrial Machinery Systems Co Ltd | Single suction volute pump |
| CN113606184A (en) * | 2021-08-26 | 2021-11-05 | 江苏大学 | Centrifugal pump with self-balancing axial force |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62233493A (en) * | 1986-03-21 | 1987-10-13 | エルンスト ハウエンシユタイン | Radial or axial centrifugal pump |
| JPS6410469U (en) * | 1987-07-09 | 1989-01-19 |
-
1990
- 1990-10-12 JP JP1990107009U patent/JP2519466Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62233493A (en) * | 1986-03-21 | 1987-10-13 | エルンスト ハウエンシユタイン | Radial or axial centrifugal pump |
| JPS6410469U (en) * | 1987-07-09 | 1989-01-19 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001114705A (en) * | 1999-10-12 | 2001-04-24 | Nippon Shokubai Co Ltd | Method for easily transporting polymerizable compound |
| JP2012097695A (en) * | 2010-11-04 | 2012-05-24 | Furukawa Industrial Machinery Systems Co Ltd | Single suction volute pump |
| CN113606184A (en) * | 2021-08-26 | 2021-11-05 | 江苏大学 | Centrifugal pump with self-balancing axial force |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2519466Y2 (en) | 1996-12-04 |