DE573029C - Closed pump impeller - Google Patents

Closed pump impeller

Info

Publication number
DE573029C
DE573029C DED61690D DED0061690D DE573029C DE 573029 C DE573029 C DE 573029C DE D61690 D DED61690 D DE D61690D DE D0061690 D DED0061690 D DE D0061690D DE 573029 C DE573029 C DE 573029C
Authority
DE
Germany
Prior art keywords
impeller
blades
pump impeller
closed pump
closed
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
DED61690D
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.)
JOSEF DIBUTSCH
Original Assignee
JOSEF DIBUTSCH
Publication date
Priority to DED61690D priority Critical patent/DE573029C/en
Application granted granted Critical
Publication of DE573029C publication Critical patent/DE573029C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/18Rotors
    • F04D29/22Rotors specially for centrifugal pumps
    • F04D29/2238Special flow patterns
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/18Rotors
    • F04D29/22Rotors specially for centrifugal pumps
    • F04D29/2261Rotors specially for centrifugal pumps with special measures
    • F04D29/2277Rotors specially for centrifugal pumps with special measures for increasing NPSH or dealing with liquids near boiling-point

Landscapes

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

Description

Geschlossenes Pumpenlaufrad Die vorliegende Erfindung bezieht `sich auf eine Förderpumpe, deren Rotor-als geschlos= senes Laufrad ausgebildet ist. Sie besteht in der besonderen Ausbildung dieses Laufrades in der Weise, daß es in mehrere abwechselnd parallel und senkrecht zur Welle liegende Förderabschnitte unterteilt ist und zwischen dem Laufradmantel und der -Nabe schraubenförmige Schaufeln derart angeordnet sind, daß die Förderflüssigkeit in mehreren Stufen aus der Richtung parallel zur Welle in die Richtung senkrecht zur Welle umgelenkt wird, während sie gleichzeitig-im Schraubengang in den geschlossenen Laufradkanälen von verhältnismäßig großer Länge vorwärts bewegt wird.Closed pump impeller The present invention relates to ` on a feed pump, the rotor of which is designed as a closed impeller. she consists in the special design of this impeller in such a way that it is divided into several Alternately parallel and perpendicular to the shaft lying conveyor sections divided is and between the impeller shell and the hub helical blades such are arranged that the delivery liquid in several stages from the direction parallel is deflected to the shaft in the direction perpendicular to the shaft, while at the same time-im Helical thread in the closed impeller channels of relatively great length is moved forward.

Durch diese eigenartige Ausbildung des Laufrades wird gegenüber den bekannten Pumpen der Vorteil größerer Saugkraft erzielt und ein. Abreißen der Saugleitung verhindert.This peculiar design of the impeller is compared to the known pumps achieved the advantage of greater suction power and a. Tear off the suction line prevented.

In der beiliegenden Zeichnung ist das Laufrad der Förderpumpe bei abgenommener oberer Wand und mit den Schaufelflächen schaubildlich dargestellt.The impeller of the feed pump is shown in the accompanying drawing removed upper wall and shown diagrammatically with the blade surfaces.

Das Laufrad besteht aus dem unteren bzw. inneren Mantel I (der Nabe) und dem oberen bzw. äußeren Mantel 2, der in der Zeichnung nur an einer Stelle dargestellt ist. Zwischen den beiden von dem Saugstutzen ab nach hinten stufenartig ansteigenden Mantelflächen I und 2 sind die Schaufeln 3 angeordnet, die von dem Saugstutzen ab schraubenförmig bis zu dem jeweiligen Austritt ¢ an dem Laufrad verlaufen. Diese Schaufeln bilden schraubenförmig verwundene Kanäle für die zu fördernde Flüssigkeit. Der Querschnitt dieser Leitkanäle vermindert sich in an sich bekannter Weise von dem Saugstutzen bis zum Austritt allmählich, wodurch eine Steigerung der relativen Austrittsgeschwindigkeit gegen--über der relativen Eintrittsgeschwindigkeit der-zu fördernden Flüssigkeit erzielt wird.The impeller consists of the lower or inner shell I (the hub) and the upper or outer shell 2, which is shown in the drawing only at one point is. Between the two that rise in steps towards the rear from the suction nozzle Outer surfaces I and 2, the blades 3 are arranged from the suction nozzle run helically up to the respective outlet ¢ on the impeller. These Blades form helically twisted channels for the liquid to be conveyed. The cross-section of these guide channels is reduced in a manner known per se from the suction nozzle to the outlet gradually, creating an increase in the relative Exit speed compared to - over the relative entry speed of the-to promoting liquid is achieved.

Um den Wirkungsgrad der Pumpe zu steigern; können in an sich bekannter Weise zwischen die Schaufeln 3 noch Zwischenschaufeln 5 eingebaut werden.To increase the efficiency of the pump; can be known in and of itself Way between the blades 3 nor 5 intermediate blades are installed.

Die Arbeits- und Wirkungsweise der Pumpe ist folgende: Wird das Laufrad in Richtung des Pfeiles A bewegt, so wird die zu fördernde Flüssigkeit von dem Saugstutzen angesogen. Dadurch, daß die Schaufeln.3 des Laufrades hinter der Einsaugöffnung liegen und einen sehr hohen Steigungswinkel aufweisen und in dem parallel zur Welle liegenden Teil des Mantels beginnen, wird die durch den Saugstutzen des Gehäuses in das Laufrad übertretende Flüssigkeit als geschlossene Säule in dieses eingesaugt und wird nicht mit oder vor Beginn ihrer Rotation von den Schaufeln zerschnitten, sondern erst nach Einsetzen ihrer Rotation innerhalb des Laufrades durch diese gewissermaßen auf die Schaufeln gehoben und dann durch die von den Schaufeln gebildeten Kanäle von innen nach außen unter ständiger Zunahme der Geschwindigkeit bis zu den Austrittsöffnungen q. des Laufrades befördert.The working and functioning of the pump is as follows: becomes the impeller Moved in the direction of arrow A, the liquid to be pumped is removed from the suction nozzle sucked in. Because the blades. 3 of the impeller behind the intake opening lie and have a very high pitch angle and in that parallel to the shaft the lying part of the jacket begins, which is through the suction port of the housing Liquid entering the impeller is sucked into the impeller as a closed column and is not cut by the blades with or before they start to rotate, but only after the onset of their rotation within the impeller by this to a certain extent lifted onto the blades and then through the channels formed by the blades from the inside to the outside with a constant increase in speed up to the outlet openings q. of the impeller.

Claims (1)

PATPNTANSPRUCI3: Geschlossenes Pumpenlaufrad, gekennzeichnet durch die Kombination folgender Merkmale: stufenförmige Ausbildung des durch Nabe (i) und Mantel (2) gebildeten Arbeitsraumes; schraubenförmige Schaufeln (3), die den abwechselnd axial und radial verlaufenden Stufen folgen und lange Kanäle mit von der Saug- nach der Druckseite abnehmendem Querschnitt bilden; großer Steigungswinkel der im axial gerichteten Saugmund liegenden Schaufeln.PATPNTANSPRUCI3: Closed pump impeller, characterized by the combination of the following features: stepped design of the hub (i) and jacket (2) formed working space; helical blades (3), which the alternating axial and radial steps and long channels with from the suction side form decreasing cross-section towards the pressure side; large angle of incline of the blades lying in the axially directed suction mouth.
DED61690D Closed pump impeller Expired DE573029C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED61690D DE573029C (en) Closed pump impeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED61690D DE573029C (en) Closed pump impeller

Publications (1)

Publication Number Publication Date
DE573029C true DE573029C (en) 1933-03-27

Family

ID=7058242

Family Applications (1)

Application Number Title Priority Date Filing Date
DED61690D Expired DE573029C (en) Closed pump impeller

Country Status (1)

Country Link
DE (1) DE573029C (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704516A (en) * 1955-03-22 Rotary pump
EP1135611A1 (en) * 1998-12-04 2001-09-26 Warman International Limited Improvements relating to froth pumps
EP1169550A2 (en) * 1999-03-22 2002-01-09 David Muhs Pump assembly and related components
WO2002031361A1 (en) * 2000-10-09 2002-04-18 Allweiler Ag Centrifugal wheel pump
DE10050108A1 (en) * 2000-10-09 2002-06-06 Allweiler Ag Rotor for turbine pump has bearing tube with bore to receive shaft and even number of vanes formed on it
US6692234B2 (en) 1999-03-22 2004-02-17 Water Management Systems Pump system with vacuum source
US8998586B2 (en) 2009-08-24 2015-04-07 David Muhs Self priming pump assembly with a direct drive vacuum pump

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2704516A (en) * 1955-03-22 Rotary pump
EP1135611A4 (en) * 1998-12-04 2002-09-11 Warman Int Ltd Improvements relating to froth pumps
EP1135611A1 (en) * 1998-12-04 2001-09-26 Warman International Limited Improvements relating to froth pumps
CZ300400B6 (en) * 1998-12-04 2009-05-13 Weir Minerals Australia Ltd. Pump impeller and pump having such an impeller
US6619910B1 (en) 1998-12-04 2003-09-16 Warman International Limited Froth pumps
US7011505B2 (en) 1999-03-22 2006-03-14 Water Management Systems Pump system with vacuum source
EP1169550A4 (en) * 1999-03-22 2003-11-19 David Muhs Pump assembly and related components
US6692234B2 (en) 1999-03-22 2004-02-17 Water Management Systems Pump system with vacuum source
EP1169550A2 (en) * 1999-03-22 2002-01-09 David Muhs Pump assembly and related components
US7794211B2 (en) 1999-03-22 2010-09-14 Water Management Systems Pump System with a vacuum source coupled to a separator
US8246316B2 (en) 1999-03-22 2012-08-21 David Muhs Vacuum source and float valve for a self-priming pump
US8662862B2 (en) 1999-03-22 2014-03-04 Water Management Systems, LLC Pump system with vacuum source
DE10050108A1 (en) * 2000-10-09 2002-06-06 Allweiler Ag Rotor for turbine pump has bearing tube with bore to receive shaft and even number of vanes formed on it
WO2002031361A1 (en) * 2000-10-09 2002-04-18 Allweiler Ag Centrifugal wheel pump
US8998586B2 (en) 2009-08-24 2015-04-07 David Muhs Self priming pump assembly with a direct drive vacuum pump

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