EP0071715A2 - Pompe à vide du type à anneau liquide pour fluides gazeux - Google Patents

Pompe à vide du type à anneau liquide pour fluides gazeux Download PDF

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Publication number
EP0071715A2
EP0071715A2 EP82105132A EP82105132A EP0071715A2 EP 0071715 A2 EP0071715 A2 EP 0071715A2 EP 82105132 A EP82105132 A EP 82105132A EP 82105132 A EP82105132 A EP 82105132A EP 0071715 A2 EP0071715 A2 EP 0071715A2
Authority
EP
European Patent Office
Prior art keywords
impeller
pressure
liquid ring
vacuum pump
passage
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
Application number
EP82105132A
Other languages
German (de)
English (en)
Other versions
EP0071715A3 (en
EP0071715B1 (fr
Inventor
Wilfried Lübke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0071715A2 publication Critical patent/EP0071715A2/fr
Publication of EP0071715A3 publication Critical patent/EP0071715A3/de
Application granted granted Critical
Publication of EP0071715B1 publication Critical patent/EP0071715B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • F04C19/00—Rotary-piston pumps with fluid ring or the like, specially adapted for elastic fluids
    • F04C19/005—Details concerning the admission or discharge
    • F04C19/007—Port members in the form of side plates

Definitions

  • the invention relates to a liquid ring vacuum pump according to the preamble of claim 1.
  • Vacuum pumps with circulating liquid that have a passage in the control disk for the suction liquid (circulation water borehole) show noticeable erosion and / or cavitation damage in the area of the said passages on control disks and impellers, which can only be achieved through the use of high-quality material (CrNi steel). can be delayed for these machine parts.
  • liquid ring vacuum pumps of the type mentioned at the outset which, if appropriate, should also also convey liquids in the area of higher suction pressures in operation in addition to gaseous medium
  • a separate pre-separator is installed in the suction line in front of the vacuum pump, which separates any liquid that is also conveyed from the gaseous medium in front of the vacuum pump. With pure gas production, these measures result in reduced efficiency.
  • the object of the invention is to improve the operating properties with elimination in special cases of required complex and fault-prone auxiliary devices and to avoid erosion damage during circuit operation and / or conveyance of liquid accumulating on the suction side.
  • the impeller (not shown) with blades arranged on the circumference of its impeller hub is arranged eccentrically in a machine housing (not shown).
  • the impeller shaft penetrates shaft passages 4 from the machine housing, for example, on both sides covering flat control disks 1, which in turn are covered on the outside by end shields (not shown) for the impeller shaft and which, in the case of the double-flow pump described, each have separate inlets and outlets for the medium to be conveyed.
  • These inlets or outlets are connected via suction slits 2 or pressure slits 3 in the control disks 1 to the vane chambers which are closed on the circumference by the liquid ring which rotates within the machine housing with the impeller.
  • Liquid channels are provided in the end shields between the inlets and outlets, which are connected to a hydraulic fluid supply line located outside the machine and open into hydraulic fluid inlets 5 to hydraulic fluid passages 6 in the control disks 1.
  • the pressure fluid passage 6 is formed on the side 1A as an annular groove surrounding the shaft passage 4, into which an inflow channel 7 attached on the side 1A opens from the outer circumference.
  • the inflow channel 7 deflects the gap-sealing pressure fluid in the direction of the rotating liquid ring into it in a vortex-free manner, the inflow channel 8, viewed in the direction of rotation of the impeller, being arranged behind the suction slot 2 and below the shaft passage 4 parallel to a diameter axis running between the suction and pressure slots as a milling groove.
  • several inflow channels can also be provided.
  • a liquid ring vacuum pump is connected at the outlet of each end shield to a separator which is connected to the pressure fluid inlet 5 via a line (not shown) instead of, as is known, to a liquid return.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Eye Examination Apparatus (AREA)
EP82105132A 1981-06-24 1982-06-11 Pompe à vide du type à anneau liquide pour fluides gazeux Expired EP0071715B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3124867A DE3124867C2 (de) 1981-06-24 1981-06-24 Flüssigkeitsring-Vakuumpumpe für gasförmige Medien
DE3124867 1981-06-24

Publications (3)

Publication Number Publication Date
EP0071715A2 true EP0071715A2 (fr) 1983-02-16
EP0071715A3 EP0071715A3 (en) 1984-03-07
EP0071715B1 EP0071715B1 (fr) 1986-09-10

Family

ID=6135297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82105132A Expired EP0071715B1 (fr) 1981-06-24 1982-06-11 Pompe à vide du type à anneau liquide pour fluides gazeux

Country Status (8)

Country Link
US (1) US4545730A (fr)
EP (1) EP0071715B1 (fr)
JP (1) JPS585495A (fr)
AU (1) AU552788B2 (fr)
BR (1) BR8203646A (fr)
CA (1) CA1217173A (fr)
DE (1) DE3124867C2 (fr)
IN (1) IN160801B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521161A (en) * 1983-12-23 1985-06-04 The Nash Engineering Company Noise control for conically ported liquid ring pumps
US4551070A (en) * 1983-12-23 1985-11-05 The Nash Engineering Company Noise control for conically ported liquid ring pumps
WO1993022562A1 (fr) * 1992-05-06 1993-11-11 Siemens Aktiengesellschaft Machine a anneau liquide
US5769609A (en) * 1995-08-16 1998-06-23 Siemens Aktiengesellschaft Liquid ring compressor having a distribution groove for sealing

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3337837A1 (de) * 1983-10-18 1985-04-25 Siemens AG, 1000 Berlin und 8000 München Fluessigkeitsringpumpe
JPS6220445U (fr) * 1985-07-23 1987-02-06
US4756672A (en) * 1986-01-27 1988-07-12 Siemens Aktiengesellschaft Liquid-ring pump with maintenance of liquid level
US4755107A (en) * 1986-05-14 1988-07-05 Siemens Aktiengesellschaft Liquid-ring pump having additional openings in control disc for warm and cold liquid
US4679987A (en) * 1986-05-19 1987-07-14 The Nash Engineering Company Self-priming liquid ring pump methods and apparatus
DE4301907A1 (de) * 1993-01-25 1994-07-28 Siemens Ag Flüssigkeitsringmaschine
US5464329A (en) * 1994-05-25 1995-11-07 Miura Co., Ltd. Water ring type pump with sidewall water reflux passage
GB2303879B (en) * 1995-08-01 1999-09-15 Hick Hargreaves & Co Ltd Liquid ring pump
US6106239A (en) * 1997-11-14 2000-08-22 Vooner Vacuum Pumps, Inc. Air flow apparatus for liquid ring vacuum pump
DE29803322U1 (de) * 1998-02-25 1999-07-15 Speck Pumpen Walter Speck Kg Flüssigkeitsringmaschine
US6558131B1 (en) * 2001-06-29 2003-05-06 nash-elmo industries, l.l.c. Liquid ring pumps with automatic control of seal liquid injection
EP1855010B1 (fr) * 2006-05-11 2008-08-13 Pompetravaini S.p.A. Pompe à vide à anneau liquide monoétagée avec tubulures d'aspiration et de refoulement intégrées au corps central.
MX351024B (es) * 2011-11-22 2017-09-28 Sterling Ind Consult Gmbh Bomba de vacío de anillo líquido e impelente para una bomba de vacío de anillo líquido.
US9689387B2 (en) * 2012-10-30 2017-06-27 Gardner Denver Nash, Llc Port plate of a flat sided liquid ring pump having a gas scavenge passage therein

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT63355B (de) * 1912-08-26 1914-02-10 Siemens Schuckertwerke Wien Flügelradgebläse oder -pumpe mit exzentrischem Gehäuse und abdichtendem kreisenden Flüssigkeitsring.
DE1027358B (de) * 1955-02-08 1958-04-03 Siemens Ag Fluessigkeitsringpumpe
DE2317420A1 (de) * 1973-04-06 1975-03-13 Siemens Ag Fluessigkeitsringgasverdichter
DE2541050A1 (de) * 1975-09-15 1977-03-17 Siemens Ag Fluessigkeitsringverdichter

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US29747A (en) * 1860-08-21 Improved telegraphic instrument
US1180613A (en) * 1913-03-19 1916-04-25 Siemens Schuckertwerke Gmbh Rotary pump.
US1662250A (en) * 1926-06-11 1928-03-13 Irving C Jennings Method and apparatus relating to motor-driven pumps
GB1284473A (en) * 1969-04-26 1972-08-09 Siemens Ag Improvements in or relating to liquid ring pumps
DE2318538B2 (de) * 1973-04-12 1975-12-04 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verteiler für einen Flüssigkeitsringgasverdichter
US4273515A (en) * 1976-04-07 1981-06-16 General Signal Corporation Liquid ring pump
US4323334A (en) * 1980-01-25 1982-04-06 The Nash Engineering Company Two stage liquid ring pump
US4392783A (en) * 1980-12-12 1983-07-12 The Nash Engineering Company Liquid ring pump employing discharged pumping liquid for discharge port control

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT63355B (de) * 1912-08-26 1914-02-10 Siemens Schuckertwerke Wien Flügelradgebläse oder -pumpe mit exzentrischem Gehäuse und abdichtendem kreisenden Flüssigkeitsring.
DE1027358B (de) * 1955-02-08 1958-04-03 Siemens Ag Fluessigkeitsringpumpe
DE2317420A1 (de) * 1973-04-06 1975-03-13 Siemens Ag Fluessigkeitsringgasverdichter
DE2541050A1 (de) * 1975-09-15 1977-03-17 Siemens Ag Fluessigkeitsringverdichter

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
SIEMENS DRUCKSCHRIFT Best. Nr. E725/1013 *
SIEMENS-PREISLISTE P 20(I.Teil) *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4521161A (en) * 1983-12-23 1985-06-04 The Nash Engineering Company Noise control for conically ported liquid ring pumps
EP0155419A2 (fr) * 1983-12-23 1985-09-25 The Nash Engineering Company Réglage de bruit pour pompes à anneau liquide avec passages placés en cône
US4551070A (en) * 1983-12-23 1985-11-05 The Nash Engineering Company Noise control for conically ported liquid ring pumps
EP0155419A3 (en) * 1983-12-23 1986-02-12 The Nash Engineering Company Noise control for conically ported liquid ring pumps
WO1993022562A1 (fr) * 1992-05-06 1993-11-11 Siemens Aktiengesellschaft Machine a anneau liquide
US5769609A (en) * 1995-08-16 1998-06-23 Siemens Aktiengesellschaft Liquid ring compressor having a distribution groove for sealing

Also Published As

Publication number Publication date
AU8514682A (en) 1983-01-06
US4545730A (en) 1985-10-08
EP0071715A3 (en) 1984-03-07
DE3124867C2 (de) 1983-11-17
CA1217173A (fr) 1987-01-27
IN160801B (fr) 1987-08-08
EP0071715B1 (fr) 1986-09-10
JPS585495A (ja) 1983-01-12
AU552788B2 (en) 1986-06-19
BR8203646A (pt) 1983-06-14
DE3124867A1 (de) 1983-01-13

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