DE325196C - Axial pressure compensation device for centrifugal pumps - Google Patents

Axial pressure compensation device for centrifugal pumps

Info

Publication number
DE325196C
DE325196C DENDAT325196D DE325196DD DE325196C DE 325196 C DE325196 C DE 325196C DE NDAT325196 D DENDAT325196 D DE NDAT325196D DE 325196D D DE325196D D DE 325196DD DE 325196 C DE325196 C DE 325196C
Authority
DE
Germany
Prior art keywords
pressure compensation
compensation device
axial pressure
centrifugal pumps
space
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
Application number
DENDAT325196D
Other languages
German (de)
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.)
AEG AG
Original Assignee
AEG AG
Publication date
Application granted granted Critical
Publication of DE325196C publication Critical patent/DE325196C/en
Expired legal-status Critical Current

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

Landscapes

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

Description

Achsialdruckausgleichvorrichtung fär Zentrifugalpumpen. Bei dem Achsialdruckausgleich für Kreiselpupen, bei dem das als Entlastungsmittel diUnende Druckwasser einem hinter dem letzten Pumpenrad befindlichen Raum am äußeren Umfang zuströmt und in der Nähe der Achse wieder abströmt, wobei die Zu- oder Ableitungsstelle oder beide durch einen infolge des Achsialschubes veränderlichen Spalt geregelt werden kann, hat sich der Nachteil gezeigt, daß das in diesen Raum eintretende Druckwasser infolge des Mitreißens durch das Pumpenrad nach außen gedrückt wird und infolgedessen nicht frei abfließen kann.' Die Wirksamkeit des Druckausgleiches wird dadurch behindert, ja oft unmöglich gemacht.Axial pressure compensation device for centrifugal pumps. With the axial pressure compensation for centrifugal dolls, in which the pressure water thinning as a relief agent is behind the space located on the outer circumference of the last impeller flows towards and in the vicinity the axis flows off again, whereby the inlet or outlet point or both through a variable gap can be regulated as a result of the axial thrust the disadvantage shown that the pressure water entering this space as a result the entrainment is pressed outwards by the impeller and, as a result, not can flow freely. ' The effectiveness of the pressure equalization is hindered by yes often made impossible.

Gemäß der Erfindung wird dieser Nachteil nun dadurch behoben, daß in dem Druckausgleichraum an. sich bekannte feststehende Flügel o. dgl. angeordnet sind, die ein Mitumlaufen der Flüssigkeit mit dem Pumpenrad verhindern, so daß ein freier Ablauf gewährleistet ist.According to the invention, this disadvantage is now eliminated in that in the pressure equalization space. known fixed wings or the like. Arranged are that prevent the liquid from circulating with the impeller, so that a free flow is guaranteed.

Die Zeichnung zeigt ein Ausführungsbeispiel, bei dem die Zuführung des Druckwassers in den Druckausgleichraum a in bekannter Weise durch den Spalt b zufließt, während der Abfluß in der Nähe der Welle c durch den veränderlichen Spalt d erfolgt. Indem Raum a sind gemäß der Erfindung an dem Gehäusedeckel befestigte Flügel e vorgesehen, die ein Mitreißen der Druckausgleichflüssigkeit durch das Pumpenrad f verhindern. Infolgedessen wird ein ungehindertes Abfließen der Flüssigkeit und damit eine gute Wirksamkeit der Druckausgleichvorrichtung gewährleistet. -The drawing shows an embodiment in which the supply of the pressurized water into the pressure equalization chamber a flows in a known manner through the gap b, while the outflow takes place in the vicinity of the shaft c through the variable gap d . In the space a, wings e attached to the housing cover are provided according to the invention, which prevent the pressure compensation fluid from being carried away by the pump wheel f. As a result, an unimpeded drainage of the liquid and thus a good effectiveness of the pressure compensation device is guaranteed. -

Claims (1)

PATENT=ANSPRUCH: Achsialdrückausgleichvörrichtung für Kreiselpumpen, bei denen das als Entlastungsmittel dienende Druckwasser in einen hinter dem Pumpenrad befindlichen Raum am äußeren Umfang zuströmt und in der Nähe der Achse abgeleitet wird, dadurch gekennzeichnet; daß in diesem Raure feststehende Flügel angeordnet sind, die ein Mitreißen des Entlastungsmittels nach dem äußeren Umfang durch das Pumpenrad verhindern. PATENT = CLAIM: Axial pressure compensation device for centrifugal pumps, in which the pressurized water serving as a relief means flows into a space on the outer circumference behind the pump wheel and is diverted near the axis, characterized; that fixed wings are arranged in this Raure, which prevent the discharge agent from being carried along to the outer periphery by the pump wheel.
DENDAT325196D Axial pressure compensation device for centrifugal pumps Expired DE325196C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE325196T

Publications (1)

Publication Number Publication Date
DE325196C true DE325196C (en) 1920-09-14

Family

ID=6182653

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT325196D Expired DE325196C (en) Axial pressure compensation device for centrifugal pumps

Country Status (1)

Country Link
DE (1) DE325196C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2445904A1 (en) * 1979-01-06 1980-08-01 Lucas Industries Ltd Central inlet conical screw rotor pump - has annular throttle gaps for radially inward leakage flow to central low pressure chamber
DE4421888A1 (en) * 1994-06-23 1996-01-04 Klein Schanzlin & Becker Ag Device for axial thrust compensation in centrifugal pumps

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2445904A1 (en) * 1979-01-06 1980-08-01 Lucas Industries Ltd Central inlet conical screw rotor pump - has annular throttle gaps for radially inward leakage flow to central low pressure chamber
DE4421888A1 (en) * 1994-06-23 1996-01-04 Klein Schanzlin & Becker Ag Device for axial thrust compensation in centrifugal pumps

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