DE1083654B - Vertical centrifugal pump with a feeder blade - Google Patents

Vertical centrifugal pump with a feeder blade

Info

Publication number
DE1083654B
DE1083654B DEK33065A DEK0033065A DE1083654B DE 1083654 B DE1083654 B DE 1083654B DE K33065 A DEK33065 A DE K33065A DE K0033065 A DEK0033065 A DE K0033065A DE 1083654 B DE1083654 B DE 1083654B
Authority
DE
Germany
Prior art keywords
feeder
centrifugal pump
vertical centrifugal
liquid
feeder blade
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.)
Pending
Application number
DEK33065A
Other languages
German (de)
Inventor
Dipl-Ing Erich Kuechler
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.)
ERICH KUECHLER DIPL ING
Original Assignee
ERICH KUECHLER DIPL ING
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 ERICH KUECHLER DIPL ING filed Critical ERICH KUECHLER DIPL ING
Priority to DEK33065A priority Critical patent/DE1083654B/en
Publication of DE1083654B publication Critical patent/DE1083654B/en
Pending 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
    • F04D29/2261Rotors 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

Description

Vertikale Kreiselpumpe mit einem Zubringerflügel Vertikale Pumpen oberhalb des Flüssigkeitsspiegels mit einem Zubringerflügel, der auf der verlängerten Welle mit oder ohne Spurlager in der Flüssigkeit angeordnet ist, sind bekannt.Vertical centrifugal pump with a feeder vane. Vertical pumps above the liquid level with a feeder wing, which is on the extended Shaft with or without thrust bearings arranged in the liquid are known.

Gegenüber selbstansaugenden Pumpen sind sie von der Temperatur der zu fördernden Flüssigkeit unabhängig, weil der Zubringer in der Flüssigkeit liegt und diese dem Pumpenlaufrad zudrückt. Das Anwendungsgebiet dieser Pumpen ist wegen des in der Flüssigkeit liegenden Spurlagers begrenzt. Sie eignen sich nur für reine Flüssigkeiten ohne Festsubstanzen, wobei die Flüssigkeit noch selbstschmierend sein muß.Compared to self-priming pumps, they are of the temperature of the independent of the liquid to be conveyed, because the feeder lies in the liquid and this presses the pump impeller. The area of application of these pumps is due to of the thrust bearing lying in the liquid is limited. They are only suitable for pure Liquids without solids, whereby the liquid is still self-lubricating got to.

Die Schwierigkeiten des Spurlagers in der Flüssigkeit hat man zu umgehen versucht durch Verwendung einer feststehenden Welle oder eines feststehenden Rohres mit einem Spurlager, um welches ein gegen die Flüssigkeit geschossenes Rohr läuft, auf dem unten der Zubringerflügel und oben das Pumpenlaufrad angeordnet ist. Das sich drehende Rohr mit Zubringerflügel läuft in einem am Pumpengehäuse befestigten, stillstehenden Rohr. Diese Pumpen sind unabhängig von der zu fördernden Flüssigkeit, weil diese mit dem sich im drehenden Rohr befindlichen Spurlager nicht in Berührung kommen kann. Die Tauchtiefe ist jedoch begrenzt. Sie ist abhängig vom Spalt zwischen Zubringerflügel und feststehendem Rohr. Bei den hohen Drehzahlen der Kreiselpumpen treten schon bei geringen Tauchtiefen Schwingungen des Spurlagers auf, so daß der Zubringerflügel am feststehenden Rohr anschlägt. Der Zubringerflügel fördert aber nur bei einem kleinen Spalt. Abgesehen von der Begrenzung der Tauchtiefe wegen der Schwingungen erfordert die Anordnung des Spurlagers innerhalb einer nach der Flüssigkeit geschlossenen Hohlwelle einen relativ hohen Aufwand an Material und Werkstattarbeit.The difficulties of the track bearing in the liquid have to be avoided tried by using a stationary shaft or tube with a thrust bearing around which a pipe shot against the liquid runs, on which the feeder vane is arranged at the bottom and the pump impeller at the top. That rotating pipe with feeder vane runs in an attached to the pump housing, stationary pipe. These pumps are independent of the liquid to be pumped, because this is not in contact with the thrust bearing located in the rotating tube can come. However, the diving depth is limited. It depends on the gap between Feeder wing and fixed tube. At the high speeds of centrifugal pumps occur even at shallow depths of the thrust bearing, so that the The feeder wing hits the stationary pipe. However, the feeder wing promotes only with a small gap. Apart from the limitation of the diving depth because of the Vibrations requires the arrangement of the thrust bearing within one after the liquid closed hollow shaft a relatively high amount of material and workshop work.

Gegenstand der Erfindung ist demgegenüber eine vertikale Kreiselpumpe ohne Spurlager und ohne feststehendes, am Gehäuse befestigtes Zuleitungsrohr. Der Zubringerflügel a ist innerhalb des auf die Tauchtiefe verlängerten Eingangsstutzens b des Pumpenlaufrades c angeordnet und mit diesem fest verbunden, so daß Schwingungen dieses sich drehenden Rohres auf den Zubringerflügel keinen Einfluß haben. Man kann auch den Eingangsstutzen durch ein angeschweißtes oder -geflanschtes Rohr d verlängern.In contrast, the invention relates to a vertical centrifugal pump without thrust bearings and without a fixed supply pipe attached to the housing. Of the Feeder wing a is within the inlet connection extended to the immersion depth b of the pump impeller c arranged and firmly connected to this, so that vibrations this rotating pipe have no influence on the feeder wing. One can also extend the inlet connection with a welded or flanged pipe d.

Claims (1)

PATENTANSPRUCH: Vertikale Kreiselpumpe mit oberhalb des Flüssigkeitsspiegels angeordnetem Förderrad und einem Zubringerflügel, dadurch gekennzeichnet, daß der Eingangsstutzen des Laufrades verlängert und der Zubringerflügel mit ihm fest verbunden ist. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 806 635; Zeitschrift »Chemie - Ingenieur - Technik«, 1955, Nr. 12, S. 729, Abb. 43.PATENT CLAIM: Vertical centrifugal pump with above the liquid level arranged conveyor wheel and a feeder wing, characterized in that the The inlet port of the impeller is extended and the feeder blade is firmly connected to it is. Documents considered: German Patent No. 806 635; magazine "Chemistry - Engineer - Technology", 1955, No. 12, p. 729, Fig. 43.
DEK33065A 1957-10-03 1957-10-03 Vertical centrifugal pump with a feeder blade Pending DE1083654B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK33065A DE1083654B (en) 1957-10-03 1957-10-03 Vertical centrifugal pump with a feeder blade

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK33065A DE1083654B (en) 1957-10-03 1957-10-03 Vertical centrifugal pump with a feeder blade

Publications (1)

Publication Number Publication Date
DE1083654B true DE1083654B (en) 1960-06-15

Family

ID=7219626

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK33065A Pending DE1083654B (en) 1957-10-03 1957-10-03 Vertical centrifugal pump with a feeder blade

Country Status (1)

Country Link
DE (1) DE1083654B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087211A (en) * 1975-10-30 1978-05-02 Sigma Lutin, Narodni Podnik Driving unit for vertical pump

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE806635C (en) * 1949-07-22 1951-07-09 Paul Bungartz Vertical centrifugal pump

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE806635C (en) * 1949-07-22 1951-07-09 Paul Bungartz Vertical centrifugal pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4087211A (en) * 1975-10-30 1978-05-02 Sigma Lutin, Narodni Podnik Driving unit for vertical pump

Similar Documents

Publication Publication Date Title
DE1403854A1 (en) Feeding device without stuffing box with input bearing mounted on impeller
DE1083654B (en) Vertical centrifugal pump with a feeder blade
DE712738C (en) Submersible motor pump with an external rotor motor
DE735957C (en) Two-stage centrifugal pump, especially condensate pump
DE806635C (en) Vertical centrifugal pump
DE914214C (en) Centrifugal pump with relieved stuffing box
DE448561C (en) Propeller pump vertical or inclined axis direction
DE739006C (en) Electric submersible motor pump
DE327160C (en) Housing turbine with external regulation
DE1528770C3 (en) Axial or semi-axial flow machine
DE337365C (en) Water ring pump
DE429756C (en) Deep well pump that can be sunk below the water level
DE1653741A1 (en) Motor pump with a common pump and motor housing
DE1653671A1 (en) Vertical centrifugal pump with a hollow shaft that revolves around a fixed support shaft and is mounted on the support shaft below
CH226992A (en) Device for sealing rotating bodies guided through a wall by means of sealing liquid.
DE1144596B (en) Self-priming side channel centrifugal pump with a working chamber with an approximately circular cross-section
DE916930C (en) A centrifugal pump driven by a submersible motor in the way of the conveying means for conveying hot liquids
DE509155C (en) Steam turbine with water pump
DE1754791U (en) CENTRIFUGAL PUMP WITH VERTICAL SHAFT (SUBMERSIBLE PUMP).
CH423490A (en) Turbo engine
DE1703529A1 (en) Turbo pump for pumping a liquid, in particular the condensate stage of a condensate pump
DE1726657U (en) LABORATORY SUBMERSIBLE PUMP.
CH228269A (en) Hydraulic relief device on vertical centrifugal pumps, especially submersible pumps.
DE1753876U (en) VERTICAL CENTRIFUGAL PUMP.
DE1789485U (en) VERTICAL SUBMERSIBLE CENTRIFUGAL PUMP.