EP0058610B1 - Verfahren und Einrichtung zum Erreichen eines Hochvakuums mit Gebrauch einer Einstufen-Flüssigkeitsringpumpe - Google Patents
Verfahren und Einrichtung zum Erreichen eines Hochvakuums mit Gebrauch einer Einstufen-Flüssigkeitsringpumpe Download PDFInfo
- Publication number
- EP0058610B1 EP0058610B1 EP82400242A EP82400242A EP0058610B1 EP 0058610 B1 EP0058610 B1 EP 0058610B1 EP 82400242 A EP82400242 A EP 82400242A EP 82400242 A EP82400242 A EP 82400242A EP 0058610 B1 EP0058610 B1 EP 0058610B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid
- unit
- vacuum
- pump
- installation according
- 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.)
- Expired
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
- F04B23/08—Combinations of two or more pumps the pumps being of different types
- F04B23/12—Combinations of two or more pumps the pumps being of different types at least one pump being of the rotary-piston positive-displacement type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/005—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of dissimilar working principle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/54—Installations characterised by use of jet pumps, e.g. combinations of two or more jet pumps of different type
Definitions
- the present invention relates to an installation, of the type defined in claim 1 or 4.
- the discharge pipe of the liquid jet ejector can lead into a liquid-gas separator comprising means connected to the suction pipe of the centrifugal pump and ensuring the return of all or part of the liquid collected in the separator , towards said centrifugal pump.
- the gas (air), for example at 8,333.10 3 Pa, sucked in through line 9 is discharged through line 11 (for example at 28,867.10 3 Pa) and then sucked in, together with the entrained fraction of the water refrigeration of the liquid ring pump, by the water jet ejector 14 operating with pressurized water from the discharge pipe 17 of the centrifugal pump 13.
- the gas (air) -water mixture from the ejector 14 is then discharged through line 18 into compartment 19 (at atmospheric pressure) where there is separation of air (gas) and water.
- the latter mixed with the cooling water coming from the compartment 20 and optionally from a cooling water make-up pipe (not shown), is then sucked by the suction pipe 28 of the centrifugal pump 13.
- the adjustment of the desired vacuum or the regulation of the power absorbed as a function of the volumetric capacity of the assembly can be carried out very simply using the manual or automatic valve 16 or alternatively by variation, manual or automatic. , of the diameter of the nozzle 15a of the water jet ejector 14.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Jet Pumps And Other Pumps (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Claims (17)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82400242T ATE35721T1 (de) | 1981-02-13 | 1982-02-10 | Verfahren und einrichtung zum erreichen eines hochvakuums mit gebrauch einer einstufenfl¨ssigkeitsringpumpe. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8102929 | 1981-02-13 | ||
FR8102929A FR2500086A1 (fr) | 1981-02-13 | 1981-02-13 | Installation pour la realisation d'une difference elevee de pression entre deux points, mettant en oeuvre une pompe a anneau liquide simple etage associee a un ejecteur a jet de liquide |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0058610A1 EP0058610A1 (de) | 1982-08-25 |
EP0058610B1 true EP0058610B1 (de) | 1988-07-13 |
Family
ID=9255203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82400242A Expired EP0058610B1 (de) | 1981-02-13 | 1982-02-10 | Verfahren und Einrichtung zum Erreichen eines Hochvakuums mit Gebrauch einer Einstufen-Flüssigkeitsringpumpe |
Country Status (5)
Country | Link |
---|---|
US (1) | US4505645A (de) |
EP (1) | EP0058610B1 (de) |
AT (1) | ATE35721T1 (de) |
DE (1) | DE3278768D1 (de) |
FR (1) | FR2500086A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8801037D0 (en) * | 1988-01-18 | 1988-02-17 | Plessey Co Ltd | Improvements relating to fuel supply systems |
US4880357A (en) * | 1988-06-27 | 1989-11-14 | Mathers Terrence L | Method and apparatus for producing high vacuum |
US20030236489A1 (en) * | 2002-06-21 | 2003-12-25 | Baxter International, Inc. | Method and apparatus for closed-loop flow control system |
DK200400409A (da) * | 2004-03-12 | 2004-04-21 | Neg Micon As | Variable capacity oil pump |
US20070248469A1 (en) * | 2006-04-25 | 2007-10-25 | Franklin Electric Co., Inc. | Shallow-Well Pump with Interchangeable Nozzle |
FR3008145B1 (fr) * | 2013-07-04 | 2015-08-07 | Pfeiffer Vacuum Sas | Pompe a vide primaire seche |
KR101424959B1 (ko) * | 2014-04-08 | 2014-08-01 | 한국뉴매틱(주) | 진공펌프 |
ITUB20152247A1 (it) * | 2015-07-16 | 2017-01-16 | Nuovo Pignone Tecnologie Srl | Apparato di drenaggio per una turbomacchina. |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR875245A (fr) * | 1941-05-13 | 1942-09-11 | Rateau Soc | Amorçage automatique d'une pompe centrifuge |
US2599701A (en) * | 1945-10-25 | 1952-06-10 | Eaton Mfg Co | Pumping system |
US2492075A (en) * | 1945-10-30 | 1949-12-20 | Kinney Mfg Company | Vacuum pump |
FR1037582A (fr) * | 1950-06-03 | 1953-09-21 | Pompe à air à anneau de liquide et à deux étages | |
US3221659A (en) * | 1960-04-20 | 1965-12-07 | Nash Engineering Co | Liquid ring and centrifugal series pumps for varying density fluids |
US3007322A (en) * | 1961-04-03 | 1961-11-07 | Adiel Y Dodge | Low pressure exhauster |
DE1428243A1 (de) * | 1962-10-17 | 1969-07-10 | Siemen & Hinsch Gmbh | Fluessigkeitsring-Gaspumpe |
US3239131A (en) * | 1963-03-18 | 1966-03-08 | Nash Engineering Co | High vacuum ejector pump with automatic cut-in valve |
FR1446099A (fr) * | 1965-09-01 | 1966-07-15 | Stork Koninklijke Maschf | Pompe verticale à aspiration automatique |
US3420181A (en) * | 1966-12-12 | 1969-01-07 | Norman Berry | Pumping system |
FR1600217A (de) * | 1968-03-15 | 1970-07-20 | ||
US3642384A (en) * | 1969-11-19 | 1972-02-15 | Henry Huse | Multistage vacuum pumping system |
-
1981
- 1981-02-13 FR FR8102929A patent/FR2500086A1/fr active Granted
-
1982
- 1982-02-10 US US06/347,430 patent/US4505645A/en not_active Expired - Fee Related
- 1982-02-10 DE DE8282400242T patent/DE3278768D1/de not_active Expired
- 1982-02-10 AT AT82400242T patent/ATE35721T1/de not_active IP Right Cessation
- 1982-02-10 EP EP82400242A patent/EP0058610B1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ATE35721T1 (de) | 1988-07-15 |
DE3278768D1 (en) | 1988-08-18 |
FR2500086B1 (de) | 1983-03-25 |
US4505645A (en) | 1985-03-19 |
FR2500086A1 (fr) | 1982-08-20 |
EP0058610A1 (de) | 1982-08-25 |
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