JPS5641496A - Return bend of single shaft multistage centrifugal compressor - Google Patents
Return bend of single shaft multistage centrifugal compressorInfo
- Publication number
- JPS5641496A JPS5641496A JP11607279A JP11607279A JPS5641496A JP S5641496 A JPS5641496 A JP S5641496A JP 11607279 A JP11607279 A JP 11607279A JP 11607279 A JP11607279 A JP 11607279A JP S5641496 A JPS5641496 A JP S5641496A
- Authority
- JP
- Japan
- Prior art keywords
- return bend
- return
- wall
- separation
- impellers
- 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.)
- Pending
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
PURPOSE: To prevent separation of the laminar flow occuring in the inner wall side of a return bend and loss due to the separation, by providing a plurality of protrusions on the inner wall face of a return bend that communicates the diffuser and return channel between impellers in each stage.
CONSTITUTION: A plural of impellers 2 and 3 are mounted on a rotating shaft 1 and between the impellers 2 and 3 of each stage a diffuser 4, return channel 6 and return head 5 communicating the diffuser 4 and channel 6 are provided. On the inner face of the wall of the return bend 5 a plurality of protrusions 19 are provided. These protrusions 19 can be triangular (column or cone), rectangular (column) or circular shaped, and they are arranged as needed in the circumferential and axial directions. By this arrangement, the boundary layer on the face of the inner wall is given turbulence and it nullifies the tendency of laminar flow under the influence of centrifugal force in the boundary layer in the inner wall side and prevents separation of fluid flow or greatly weaken the extent of separation.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11607279A JPS5641496A (en) | 1979-09-12 | 1979-09-12 | Return bend of single shaft multistage centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11607279A JPS5641496A (en) | 1979-09-12 | 1979-09-12 | Return bend of single shaft multistage centrifugal compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5641496A true JPS5641496A (en) | 1981-04-18 |
Family
ID=14678010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11607279A Pending JPS5641496A (en) | 1979-09-12 | 1979-09-12 | Return bend of single shaft multistage centrifugal compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5641496A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59134137A (en) * | 1983-01-21 | 1984-08-01 | ライト工業株式会社 | Method and device for opening bag of bag packing |
| JPS60134827A (en) * | 1983-12-17 | 1985-07-18 | 日本ペイント株式会社 | Automatic bag unsealing machine |
| JP2010229842A (en) * | 2009-03-26 | 2010-10-14 | Toyota Motor Corp | Compressor |
| CN110291295A (en) * | 2017-02-10 | 2019-09-27 | 西门子股份公司 | The return grade of multistage compressor or the expanding machine of the guide vane with torsion |
-
1979
- 1979-09-12 JP JP11607279A patent/JPS5641496A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59134137A (en) * | 1983-01-21 | 1984-08-01 | ライト工業株式会社 | Method and device for opening bag of bag packing |
| JPS60134827A (en) * | 1983-12-17 | 1985-07-18 | 日本ペイント株式会社 | Automatic bag unsealing machine |
| JPH0134849B2 (en) * | 1983-12-17 | 1989-07-21 | Nippon Paint Co Ltd | |
| JP2010229842A (en) * | 2009-03-26 | 2010-10-14 | Toyota Motor Corp | Compressor |
| CN110291295A (en) * | 2017-02-10 | 2019-09-27 | 西门子股份公司 | The return grade of multistage compressor or the expanding machine of the guide vane with torsion |
| US11073162B2 (en) | 2017-02-10 | 2021-07-27 | Siemens Energy Global GmbH & Co. KG | Return stage of a multi-staged compressor or expander with twisted guide vanes |
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