NL7712699A - Centrifugal pump with thrust load counteraction - has component on shaft between high and low-pressure chambers - Google Patents
Centrifugal pump with thrust load counteraction - has component on shaft between high and low-pressure chambersInfo
- Publication number
- NL7712699A NL7712699A NL7712699A NL7712699A NL7712699A NL 7712699 A NL7712699 A NL 7712699A NL 7712699 A NL7712699 A NL 7712699A NL 7712699 A NL7712699 A NL 7712699A NL 7712699 A NL7712699 A NL 7712699A
- Authority
- NL
- Netherlands
- Prior art keywords
- shaft
- pressure
- chamber
- centrifugal pump
- low
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/041—Axial thrust balancing
- F04D29/0416—Axial thrust balancing balancing pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The centrifugal pump has one or more impellers mounted on a shaft, and means for counteracting thrust loads on the shaft using a component fixed to it and subjected to the pressure of the medium handled. A bearing (3) accurately locates the shaft (1) in the axial direction, while the sleeve (8) has one side in a chamber (15) in which there is high pressure, this chamber being pref. openly connected to the high-pressure side of the last impeller. The other side of the sleeve is in a lower-pressure chamber (16) pref. openly connected to the chamber in front of the first impeller or to atmosphere. The high-pressure chamber is sealed off from the low-pressure one by a slipring-type seal (12-14) and the surface area of the sleeve is such that the pressures acting on its working faces counteract the thrust loads on the impellers or nearly so.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7712699A NL7712699A (en) | 1977-11-17 | 1977-11-17 | Centrifugal pump with thrust load counteraction - has component on shaft between high and low-pressure chambers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7712699A NL7712699A (en) | 1977-11-17 | 1977-11-17 | Centrifugal pump with thrust load counteraction - has component on shaft between high and low-pressure chambers |
Publications (1)
Publication Number | Publication Date |
---|---|
NL7712699A true NL7712699A (en) | 1979-05-21 |
Family
ID=19829559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7712699A NL7712699A (en) | 1977-11-17 | 1977-11-17 | Centrifugal pump with thrust load counteraction - has component on shaft between high and low-pressure chambers |
Country Status (1)
Country | Link |
---|---|
NL (1) | NL7712699A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4715778A (en) * | 1986-04-01 | 1987-12-29 | Mitsubishi Jukogyo Kabushiki Kaisha | Centrifugal compressor |
EP1953390A1 (en) * | 2007-02-05 | 2008-08-06 | RITZ Pumpenfabrik GmbH & Co. KG | Method and device for axial thrust compensation |
EP3171028A1 (en) * | 2015-11-19 | 2017-05-24 | Grundfos Holding A/S | Multistage centrifugal pump with an axial thrust balancing piston, the pressure and suction sides of which are separated by a mechanical seal |
CN106996387A (en) * | 2016-01-26 | 2017-08-01 | 格兰富控股联合股份公司 | Centrifugal pump |
-
1977
- 1977-11-17 NL NL7712699A patent/NL7712699A/en not_active Application Discontinuation
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4715778A (en) * | 1986-04-01 | 1987-12-29 | Mitsubishi Jukogyo Kabushiki Kaisha | Centrifugal compressor |
EP1953390A1 (en) * | 2007-02-05 | 2008-08-06 | RITZ Pumpenfabrik GmbH & Co. KG | Method and device for axial thrust compensation |
EP3171028A1 (en) * | 2015-11-19 | 2017-05-24 | Grundfos Holding A/S | Multistage centrifugal pump with an axial thrust balancing piston, the pressure and suction sides of which are separated by a mechanical seal |
CN106870378A (en) * | 2015-11-19 | 2017-06-20 | 格兰富控股联合股份公司 | Centrifugal multistage pump multiple centrifugal pump |
CN106870378B (en) * | 2015-11-19 | 2019-04-23 | 格兰富控股联合股份公司 | Centrifugal multistage pump multiple centrifugal pump |
US10495099B2 (en) | 2015-11-19 | 2019-12-03 | Grundfos Holding A/S | Multistage centrifugal pump with shaft hydraulic force compensation |
CN106996387A (en) * | 2016-01-26 | 2017-08-01 | 格兰富控股联合股份公司 | Centrifugal pump |
EP3199815A1 (en) * | 2016-01-26 | 2017-08-02 | Grundfos Holding A/S | Centrifugal pump |
CN106996387B (en) * | 2016-01-26 | 2019-11-26 | 格兰富控股联合股份公司 | Centrifugal pump |
US10502223B2 (en) | 2016-01-26 | 2019-12-10 | Grundfos Holding A/S | Centrifugal pump |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A1B | A search report has been drawn up | ||
BV | The patent application has lapsed |