EP0517277A1 - Pompe à gaz à anneau liquide avec roue à aubes supportée en porte-à-faux - Google Patents

Pompe à gaz à anneau liquide avec roue à aubes supportée en porte-à-faux Download PDF

Info

Publication number
EP0517277A1
EP0517277A1 EP92109682A EP92109682A EP0517277A1 EP 0517277 A1 EP0517277 A1 EP 0517277A1 EP 92109682 A EP92109682 A EP 92109682A EP 92109682 A EP92109682 A EP 92109682A EP 0517277 A1 EP0517277 A1 EP 0517277A1
Authority
EP
European Patent Office
Prior art keywords
impeller
pump
suction
ring gas
hub bore
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
EP92109682A
Other languages
German (de)
English (en)
Other versions
EP0517277B1 (fr
Inventor
Udo Segebrecht
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.)
Sihi GmbH and Co KG
Original Assignee
Sihi GmbH and Co KG
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 Sihi GmbH and Co KG filed Critical Sihi GmbH and Co KG
Publication of EP0517277A1 publication Critical patent/EP0517277A1/fr
Application granted granted Critical
Publication of EP0517277B1 publication Critical patent/EP0517277B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/08—Sealings
    • F04D29/086—Sealings especially adapted for liquid pumps
    • 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
    • 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
    • F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
    • F04C27/008—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine

Definitions

  • the innovation relates to a single-stage liquid ring gas pump with a floating impeller and a housing with suction and pressure chamber as well as suction and pressure ports on the side of the pump that is remote from the drive.
  • the impeller In these pumps, the impeller is placed on a motor shaft stub and floating in smaller pumps, i. H. axially movable. For larger pumps it is advisable to fix the impeller in order to ensure an exact axial fixation between the control discs or between the control disc and the pump housing wall. Since the hub bore of the impeller is continuous in the normal production methods and the motor shaft stump is usually made of rust-prone material, there is a need to seal the impeller bore on the side remote from the drive. This is usually done by a clamped or shrunk-in closure cap, which ensures sufficient tightness in smaller pumps, so that no liquid can reach the motor or combined motor pump shaft from the drive-distant side via this closure.
  • the object of the invention is to provide for such pumps a seal of the hub bore of the impeller to the drive-remote side a sufficient and tight cover that excludes damage to the stub shaft by liquid or medium of the liquid ring gas pump.
  • this object is achieved in that the impeller with a continuous hub bore to the suction and pressure chamber housing side of the liquid ring gas pump is closed with a cover plate which seals the interior of the hub bore against the suction and pressure chamber of the pump by means of a seal and which by means of screws on the Impeller hub is attached.
  • the cover plate must be sealed both on the radially outer circumference, preferably with a liquid seal, and also in terms of area by means of a liquid seal or paper seal relative to the stub shaft end of the motor.
  • this cover plate Due to the absolutely firm connection by screwing the sealing plate into the stub shaft, this cover plate remains sealed in the hub bore of the impeller, even with a longer operating time, the tightness from the pump pressure / suction chamber housing to the stub shaft is prevented and corrosion of the stub shaft by the operating fluid or the pumped medium is avoided becomes.
  • FIG. I shows in section a liquid ring gas pump which is flanged to an electric motor 1 as a block pump.
  • the shaft passage through the pump housing is sealed by the mechanical seal 5.
  • the control disk 6 is located on the side remote from the motor, and then the pump housing 7, which contains the running and pressure ports as well as the suction and pressure chamber and also the pump feet.
  • the hub bore of the impeller passes through the entire impeller and on the side open towards the cover 7 this hub bore is sealed by a cover plate 8 which is firmly connected to the impeller hub by means of screws 9.
  • Seals are provided on the contact surfaces 10, 11 and 12, in this case preferably liquid sealing compounds, which at these points prevent operating fluid or pumped medium from entering any spaces in the housing cover 7 into the hub bore 13 of the impeller 3 and here between the stub shaft and the impeller or can cause corrosion on the shaft alone.
  • the axial position of the impeller 3 between the control disk 6 and the rear wall of the central body 2 can be fixed by means of the screw 14, i. That is, that the game between the impeller, control disc and center body rear wall is precisely adjustable.
  • the invention is not limited to the embodiment shown as an example. Variants and varieties are also possible.
EP92109682A 1991-06-07 1992-06-09 Pompe à gaz à anneau liquide avec roue à aubes supportée en porte-à-faux Expired - Lifetime EP0517277B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4118844A DE4118844A1 (de) 1991-06-07 1991-06-07 Fluessigkeitsringgaspumpe mit fliegend gelagertem fluegelrad
DE4118844 1991-06-07

Publications (2)

Publication Number Publication Date
EP0517277A1 true EP0517277A1 (fr) 1992-12-09
EP0517277B1 EP0517277B1 (fr) 1996-05-15

Family

ID=6433468

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92109682A Expired - Lifetime EP0517277B1 (fr) 1991-06-07 1992-06-09 Pompe à gaz à anneau liquide avec roue à aubes supportée en porte-à-faux

Country Status (6)

Country Link
EP (1) EP0517277B1 (fr)
AT (1) ATE138161T1 (fr)
DE (2) DE4118844A1 (fr)
DK (1) DK0517277T3 (fr)
ES (1) ES2088047T3 (fr)
GR (1) GR3020531T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19727719C1 (de) * 1997-06-30 1998-06-25 Siemens Ag Flüssigkeitsringpumpe
EP0945621A1 (fr) 1998-03-24 1999-09-29 Siemens Aktiengesellschaft Compresseur à anneau liquide
CN100414107C (zh) * 2003-05-07 2008-08-27 喷射器股份有限公司 螺旋型液体环式泵
WO2015035625A1 (fr) * 2013-09-15 2015-03-19 Gao Hanwen Bague d'étanchéité maintenant un espace
CN105464979A (zh) * 2015-12-28 2016-04-06 昂伯（上海）真空设备有限公司 一种单级水环式真空泵

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE758446C (de) * 1941-03-30 1953-02-16 Wesselinger Gusswerk Rheinguss Einrichtung zur Befestigung eines aus korrosionsfestem Werkstoff, insbesondere hochprozentigem Siliziumguss, bestehenden Kreisel-pumpenlaufrades auf der Welle
DE1083484B (de) * 1956-07-27 1960-06-15 Nash Engineering Co Fluessigkeitsringpumpe oder -kompressor
FR1254761A (fr) * 1960-04-22 1961-02-24 Basf Ag Assemblage de pièces de machines avec des arbres ou axes

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2022104C3 (de) * 1969-05-09 1979-02-08 The Nash Engineering Co., Norwalk, Conn. (V.St.A.) Motorgetriebene Flüssigkeitsringpumpe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE758446C (de) * 1941-03-30 1953-02-16 Wesselinger Gusswerk Rheinguss Einrichtung zur Befestigung eines aus korrosionsfestem Werkstoff, insbesondere hochprozentigem Siliziumguss, bestehenden Kreisel-pumpenlaufrades auf der Welle
DE1083484B (de) * 1956-07-27 1960-06-15 Nash Engineering Co Fluessigkeitsringpumpe oder -kompressor
FR1254761A (fr) * 1960-04-22 1961-02-24 Basf Ag Assemblage de pièces de machines avec des arbres ou axes

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19727719C1 (de) * 1997-06-30 1998-06-25 Siemens Ag Flüssigkeitsringpumpe
WO1999001668A1 (fr) 1997-06-30 1999-01-14 Siemens Aktiengesellschaft Pompe a anneau liquide
US6287082B1 (en) 1997-06-30 2001-09-11 Siemens Aktiengesellschaft Liquid ring pump
EP0945621A1 (fr) 1998-03-24 1999-09-29 Siemens Aktiengesellschaft Compresseur à anneau liquide
DE19812976A1 (de) * 1998-03-24 1999-09-30 Siemens Ag Flüssigkeitsringverdichter
DE19812976C2 (de) * 1998-03-24 2000-05-04 Siemens Ag Flüssigkeitsringverdichter
CN100414107C (zh) * 2003-05-07 2008-08-27 喷射器股份有限公司 螺旋型液体环式泵
WO2015035625A1 (fr) * 2013-09-15 2015-03-19 Gao Hanwen Bague d'étanchéité maintenant un espace
CN105464979A (zh) * 2015-12-28 2016-04-06 昂伯（上海）真空设备有限公司 一种单级水环式真空泵

Also Published As

Publication number Publication date
GR3020531T3 (en) 1996-10-31
DE59206273D1 (de) 1996-06-20
DE4118844A1 (de) 1992-12-10
ATE138161T1 (de) 1996-06-15
ES2088047T3 (es) 1996-08-01
EP0517277B1 (fr) 1996-05-15
DK0517277T3 (da) 1996-09-30

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