DE725507C - Centrifugal pump without stuffing box - Google Patents

Centrifugal pump without stuffing box

Info

Publication number
DE725507C
DE725507C DEM151223D DEM0151223D DE725507C DE 725507 C DE725507 C DE 725507C DE M151223 D DEM151223 D DE M151223D DE M0151223 D DEM0151223 D DE M0151223D DE 725507 C DE725507 C DE 725507C
Authority
DE
Germany
Prior art keywords
centrifugal pump
shaft
stuffing box
rear wall
pump
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
DEM151223D
Other languages
German (de)
Inventor
Paul Bungartz
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.)
Eisengiesserei GmbH
Original Assignee
Eisengiesserei GmbH
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 Eisengiesserei GmbH filed Critical Eisengiesserei GmbH
Priority to DEM151223D priority Critical patent/DE725507C/en
Application granted granted Critical
Publication of DE725507C publication Critical patent/DE725507C/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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2261—Rotors specially for centrifugal pumps with special measures
    • F04D29/2266—Rotors specially for centrifugal pumps with special measures for sealing or thrust balance

Landscapes

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

Description

Stopfbuchsenlose Kreiselpumpe Bei stopfbuchsenlosen Kreiselpumpen sind zwischen dem Wellenspaltventil und dem Lagerstuhl Spritzringe angeordnet, die verhindern, daß etwa austretende Leckflüssigkeit zu den Lagern gelangen kann. Damit diese Spritzringe wirksam -sind, müssen sie im Durchmesser größer gehalten sein als die Wellendurchtrittsstelle. Infolge ihres größ#eren Durchmessers können sie dann aber nicht mit der Welle bei der Demontage der Pumpe herausgezogen g t' werden. Diese Anordnung C der Spritzringe erschwert die Demontage der Pumpe besonders dann, "venn die Spritzringe nach längerer Betriebszeit festgerostet sind.Glandless centrifugal pump For glandeless centrifugal pumps Splash rings are arranged between the shaft gap valve and the bearing block, which prevent any leaking leakage fluid from reaching the bearings. In order to These splash rings are effective, they must be kept larger in diameter as the shaft penetration point. Due to their larger diameter, they can but then the shaft cannot be pulled out when the pump is dismantled. This arrangement C of the splash rings makes it more difficult to dismantle the pump "v if the splash rings have rusted up after a long period of operation.

Insbesondere dieser Mangel -wird durch die Anordnung gemäß der Erfindung behoben.This deficiency in particular - is made possible by the arrangement according to the invention Fixed.

Sie besteht im wesentlichen darin, daß hinter dem Wellenspaltventil die Wellenschutzbuchse bzw. die Welle treppenförmig ausgebildet ist bei analoger Formgebung der Pumpengehäuserückwand und Anordnung von ringförmig verlaufenden Ableitungsrillen in den einzelnen Stufen ', wobei die Ableitungsrillen unten in einen gemeinsamen Sammelkanal münden.It essentially consists in the fact that behind the shaft gap valve, the shaft protection bushing or the shaft is designed in a step shape with an analogous shape of the pump housing rear wall and arrangement of annular discharge grooves in the individual stages , the discharge grooves opening into a common collecting channel at the bottom.

Die Ausführung gemäß der Erfindung verhindert, ebenso wie die Spritzringe bekannter Bauarten, ein übertreten der Leckflüssigkeit zu den Lagern, gestattet aber eine leichte De- montage der Pumpe.The embodiments according to the prevent invention, as well as the spray rings of known types, a break of the leakage liquid to the bearings, but allows easy disassembly of the pump assembly.

Das auf der Zeichnung dargestellte Ausführungsbeispiel soll die trfindung erläutern. Die hinter dem Wellenspaltventil/ angeordnete Wellenschutzbuchsea ist treppenförmig abgesetzt. Die in der Gehäuserückwand angeordnete Buchseb ist ebenfalls, angepal.%t an die Wellenschutzbuchsea, stufenförmig abgesetzt. Ringförmig angeordnete Nutenc ]eiten die Leckflüssigkeit in den Sammelkanald, der mit dem nach außen führenden Stutzenc in Verbindung steht.The embodiment shown in the drawing is intended to provide the answer explain. The shaft protection bushing located behind the shaft gap valve / is stepped off. The Buchseb located in the rear wall of the housing is also adapted.% t to the shaft protection sleeveea, stepped off. Arranged in a ring Grooves feed the leakage fluid into the collecting channel, the one with the one leading to the outside Stutzenc is in communication.

Durch diese Ausführung wird ein Übertragen der Leckflüssigkeit zum Lagerstuhl verhindert und eine einwandfreie Ableitung derselben durch den Stutzen e bewirkt.This design enables the leakage fluid to be transferred to the Bearing chair prevented and a proper discharge of the same through the nozzle e causes.

Claims (1)

PATENTANSPRUCH: Stopfb,tichsenlose - Kre-iselpumpe mit hinter dem Wellenspaltventil stufenförmig ab---esetzter Wellenschutzbuchse und entspre-.I chend aus-ebildeter Gehäuserückwand, d#iti durch gekennzeichnet, daß in den einzelnen Stufen der Rückwand ringförmig verlaufende Ableitungsrillen (e) angeordnet sind, die unten in einen gemeinsanirn Sammelkanal (1d) einmünden.PATENT CLAIM: Stopfb, tichsenlose - centrifugal pump with stepped shaft protection bushing behind the shaft gap valve and a correspondingly designed housing rear wall, which is characterized by the fact that in the individual steps of the rear wall there are annular discharge grooves (e) are arranged, which open into a common collecting channel (1d) at the bottom.
DEM151223D 1941-06-27 1941-06-27 Centrifugal pump without stuffing box Expired DE725507C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM151223D DE725507C (en) 1941-06-27 1941-06-27 Centrifugal pump without stuffing box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM151223D DE725507C (en) 1941-06-27 1941-06-27 Centrifugal pump without stuffing box

Publications (1)

Publication Number Publication Date
DE725507C true DE725507C (en) 1942-09-23

Family

ID=7336961

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM151223D Expired DE725507C (en) 1941-06-27 1941-06-27 Centrifugal pump without stuffing box

Country Status (1)

Country Link
DE (1) DE725507C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115097A (en) * 1960-08-03 1963-12-24 Wilfley & Sons Inc A Corrosion resistant centrifugal pump
US4521151A (en) * 1980-03-07 1985-06-04 Joy Manufacturing Holdings Limited Centrifugal slurry pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3115097A (en) * 1960-08-03 1963-12-24 Wilfley & Sons Inc A Corrosion resistant centrifugal pump
US4521151A (en) * 1980-03-07 1985-06-04 Joy Manufacturing Holdings Limited Centrifugal slurry pump

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