EP0467011B1 - Pompe à anneau liquide avec accouplement magnétique - Google Patents

Pompe à anneau liquide avec accouplement magnétique Download PDF

Info

Publication number
EP0467011B1
EP0467011B1 EP91102360A EP91102360A EP0467011B1 EP 0467011 B1 EP0467011 B1 EP 0467011B1 EP 91102360 A EP91102360 A EP 91102360A EP 91102360 A EP91102360 A EP 91102360A EP 0467011 B1 EP0467011 B1 EP 0467011B1
Authority
EP
European Patent Office
Prior art keywords
liquid ring
liquid
chamber
pump
ring gas
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 - Lifetime
Application number
EP91102360A
Other languages
German (de)
English (en)
Other versions
EP0467011A1 (fr
Inventor
Udo Dipl.-Ing. Segebrecht
Klaus Dipl.-Ing. Domagalla
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 EP0467011A1 publication Critical patent/EP0467011A1/fr
Application granted granted Critical
Publication of EP0467011B1 publication Critical patent/EP0467011B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • F04C23/008—Hermetic 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0096—Heating; Cooling
    • 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
    • F04C19/004—Details concerning the operating liquid, e.g. nature, separation, cooling, cleaning, control of the supply

Definitions

  • the invention relates to a liquid ring gas pump according to the preamble of claim 1. Such a pump is already known.
  • Liquid ring gas pumps require a constant supply of operating fluid from the outside to maintain their operation, since the gas compressed by the pump always expels operating fluid from the pump through the pressure port. Furthermore, this liquid supply is necessary for cooling the pump and the canned drive, and possibly for cooling and lubricating bearings.
  • these pumps receive the liquid from the separating tank, which is arranged behind the pump following the pressure port and in which the mixture emerging from the pump is separated into liquid and gas. It is known to supply this liquid to a space of the pump, from which it can be passed on the one hand to the drive part and on the other hand to the pump part. Since the liquid is supplied from the outside, it makes sense to lead it to a hole in the outer housing wall or at another point away from the shaft. At this point, there is a pressure that lies between the pump suction and the pump end pressure, the pressure difference between the pressure prevailing here and the final pressure of the pump prevailing in the separating container is used to supply the liquid.
  • the invention is based on the knowledge that this problem occurs when the space to which the liquid is supplied is partially delimited by rotating parts, for example by the shaft and / or the inner rotor of the canned drive. These parts set the liquid in the ring-shaped space in rotation, so that an annular flow arises in which the pressure increases from the shaft to the outside. This pressure counteracts the fluid supply taking place away from the waves.
  • the solution to this problem according to the invention consists in that the ring flow mentioned is prevented or inhibited by a flow interfering device arranged in the room and counteracting it.
  • a flow interfering device arranged in the room and counteracting it.
  • This can be formed by a longitudinally and / or radially extending rib or a correspondingly projecting housing protrusion.
  • the rib or the housing projection is expediently arranged in such a way that the fluid is thoroughly swirled in the space.
  • the invention is explained below with reference to the drawing, which shows a schematic longitudinal section through a liquid ring gas pump and its drive.
  • the pump part 1 comprises a pump housing 2 and impeller 3 on a shaft 4, which is mounted at 5. Another bearing and other parts of the pump housing have not been shown.
  • the drive part 6 comprises an outer drive rotor 7 and an inner, driven rotor 8 which sits on the end of the shaft 4. They are separated from one another by the can 9, which is connected to the pump housing 2 via a housing part 10, which encloses a space 11 between the pump part 1 and the drive part 6, which is delimited by the shaft 4 and the rotor 8 apart from fixed housing parts and is essentially annular.
  • the housing part 10 contains a bore 12 through which operating fluid is constantly supplied to the space 11 from a storage container 13 via a line 14, which operating fluid is supplied to this space due to the static pressure difference between the space 11 and the container 13. The supply could also take place at a different location away from the shaft.
  • the space 11 contains a rib 15, which is arranged radially and axially parallel and thereby counteracts the build-up of a rotating liquid ring in the space 11.
  • Any device can be used for this purpose which largely suppresses the liquid rotation in the space 11 in such a way that the pressure it generates at the liquid supply point is sufficiently lower than the pressure available for supplying the liquid.
  • the invention is independent of whether the canned drive is designed as a canned motor drive or as a canned magnetic drive.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)

Claims (5)

  1. Pompe à gaz à anneau liquide, avec moteur à gaine et avec admission du liquide de travail dans une région d'une chambre (11) qui est éloignée de l'arbre et limitée en partie par des éléments rotatifs (4, 8), caractérisée en ce que la chambre (11) comporte un dispositif perturbateur de courant (15) qui s'oppose à un courant annulaire.
  2. Pompe à gaz à anneau liquide selon la revendication 1, caractérisée en ce que la chambre (11) est située entre le moteur à gaine (6) et la partie pompe (1).
  3. Pompe à gaz à anneau liquide selon la revendication 1 ou 2, caractérisée en ce que le dispositif perturbateur de courant est constitué par une nervure (15) s'étendant longitudinalement et/ou radialement.
  4. Pompe à gaz à anneau liquide selon l'une quelconque des revendications 1 à 3, caractérisée en ce que le dispositif perturbateur de courant est formé par une saillie (15) du carter, faisant saillie longitudinalement et/ou parallèlement à l'axe dans la chambre (11).
  5. Pompe à gaz à anneau liquide selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le dispositif perturbateur de courant est disposé immédiatement avant la forure d'admission de liquide (12) en considérant le sens de rotation de la pompe.
EP91102360A 1989-10-18 1991-02-19 Pompe à anneau liquide avec accouplement magnétique Expired - Lifetime EP0467011B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3934720A DE3934720A1 (de) 1989-10-18 1989-10-18 Fluessigkeitsringgaspumpe mit hermetisch geschlossenem bzw. gekapselten antrieb

Publications (2)

Publication Number Publication Date
EP0467011A1 EP0467011A1 (fr) 1992-01-22
EP0467011B1 true EP0467011B1 (fr) 1993-05-12

Family

ID=6391700

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91102360A Expired - Lifetime EP0467011B1 (fr) 1989-10-18 1991-02-19 Pompe à anneau liquide avec accouplement magnétique

Country Status (4)

Country Link
EP (1) EP0467011B1 (fr)
AT (1) ATE89371T1 (fr)
DE (2) DE3934720A1 (fr)
ES (1) ES2042317T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4432551A1 (de) * 1994-09-13 1996-03-14 Bayer Ag Pumpe zur Förderung heißer, korrosiver Medien
CN108397399A (zh) * 2018-03-21 2018-08-14 绵阳科大久创科技有限公司 一种磁力驱动的超洁净气体输送与转移泵

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6812819A (fr) * 1968-03-07 1969-09-09
DE2912938C2 (de) * 1979-03-31 1985-03-14 Lederle Gmbh Pumpen Und Maschinenfabrik, 7800 Freiburg Flüssigkeitsring-Gaspumpe
DE3513348C3 (de) * 1985-04-13 1994-04-14 Lederle Pumpen & Maschf Flüssigkeitsring-Gaspumpe

Also Published As

Publication number Publication date
EP0467011A1 (fr) 1992-01-22
DE3934720A1 (de) 1991-04-25
ES2042317T3 (es) 1993-12-01
ATE89371T1 (de) 1993-05-15
DE3934720C2 (fr) 1992-05-07
DE59100107D1 (de) 1993-06-17

Similar Documents

Publication Publication Date Title
EP0155544B1 (fr) Dispositif pour le transport de matières coulantes
DE2254265A1 (de) Stopfbuechslose chemiekreiselpumpe
DE2757952C2 (de) Selbstansaugende Kreiselpumpe
DE19746897C2 (de) Schraubenverdichter mit Öleinspritzung
DE1294202B (de) Kuehlanordnung an einer Taumelscheiben-Axialkolbenpumpe
DE3220314C2 (de) Zahnradpumpe
DE69401384T2 (de) Schraubenfluidmaschine
EP0955466B1 (fr) Etanchéité de jeu annulaire
DE10024953A1 (de) Kreiselpumpe mit Magnetkupplung
DE3214688A1 (de) Fluegelradpumpe
EP0467011B1 (fr) Pompe à anneau liquide avec accouplement magnétique
EP0021315B1 (fr) Machine à piston, notamment pompe à piston
DE3417038C3 (de) Spaltrohrmotorpumpe zum Fördern insbesondere von gasbeladenen Flüssigkeiten
DE3513348A1 (de) Fluessigkeitsring-gaspumpe
EP0405118A1 (fr) Pompe rotative à carburant
DE1922007A1 (de) Druckgesteuertes Wellenabdichtungs-Eindruecksystem
DE102012207145A1 (de) Verdichter, insbesondere Seitenkanalverdichter sowie Verfahren zum Pumpen eines insbesondere gasförmigen Fluides mit Hilfe eines solchen Verdichters
DE19631824A1 (de) Kreiselpumpenlagerung mit Axialschubausgleich
EP0942172A1 (fr) Pompe à vide à arbres d'entraínements multiples
DE2803772C2 (de) Tandempumpe
DE9116052U1 (de) Pumpe für Flüssigkeiten niedriger Viskosität oder nahe dem Siedepunkt
DE9206567U1 (de) Axialkolbenpumpe
DE1816398A1 (de) Hydrostatisches Radiallager fuer einen Rotor
DE1403513C (de) Aus einem Rotationskolbenverdichter oder einer Rotationskolbenpumpe und einem Elektromotor bestehendes Aggregat
DE4327425A1 (de) Lagerung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI NL SE

17P Request for examination filed

Effective date: 19920127

17Q First examination report despatched

Effective date: 19920907

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FR GB GR IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Effective date: 19930512

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19930512

REF Corresponds to:

Ref document number: 89371

Country of ref document: AT

Date of ref document: 19930515

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59100107

Country of ref document: DE

Date of ref document: 19930617

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: UFFICIO TECNICO ING. A. MANNUCCI

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3008361

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930810

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2042317

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19940219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19940220

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Effective date: 19940228

Ref country code: LI

Effective date: 19940228

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GR

Ref legal event code: MM2A

Free format text: 3008361

EUG Se: european patent has lapsed

Ref document number: 91102360.4

Effective date: 19940910

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20090225

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20090223

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20090223

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20090224

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20090227

Year of fee payment: 19

Ref country code: DE

Payment date: 20090422

Year of fee payment: 19

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20090217

Year of fee payment: 19

BERE Be: lapsed

Owner name: *SIHI G.M.B.H. & CO. K.G.

Effective date: 20100228

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20100901

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20100219

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20101029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100301

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100901

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100228

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20110301

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100219

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110220

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT