DE171073C - - Google Patents

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Publication number
DE171073C
DE171073C DENDAT171073D DE171073DA DE171073C DE 171073 C DE171073 C DE 171073C DE NDAT171073 D DENDAT171073 D DE NDAT171073D DE 171073D A DE171073D A DE 171073DA DE 171073 C DE171073 C DE 171073C
Authority
DE
Germany
Prior art keywords
housing
diffuser
guide
section
speed
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.)
Active
Application number
DENDAT171073D
Other languages
German (de)
Publication of DE171073C publication Critical patent/DE171073C/de
Active 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
    • F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/52—Outlet

Landscapes

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

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Den Gegenstand der Erfindung bildet ein Leitapparat für Zentrifugalpumpen, mit dem Zweck, die Geschwindigkeit des Wassers beim Austritt aus dem Leitapparat der an der entsprechenden Stelle im Pumpengehäuse herrschenden Wassergeschwindigkeit zwecks Vermeidung von Stoßverlusten und Wirbelbildungen anzupassen. Die Wassergeschwindigkeit im Gehäuse ist, da der QuerschnittThe subject of the invention forms a diffuser for centrifugal pumps with which Purpose, the speed of the water when it exits the diffuser at the corresponding point in the pump housing prevailing water speed in order to avoid shock losses and vortex formation adapt. The water speed in the case is because of the cross section

ίο desselben aus Fabrikationsrücksichten zweckmäßig überall gleich groß genommen werden muß, keineswegs gleich. Nimmt man nun die Breite und Weite der Leitapparatschaufeln am Umfang des Leitrades, wie bisher allgemein üblich, überall gleich an, so verläßt das Wasser den Leitapparat am Umfang mit überall gleicher Geschwindigkeit, trifft also im Gehäuse mit Wasser von teilweise kleineren, teilweise größeren Geschwindigkeiten zusammen, wodurch erhebliche Stoßverluste und Unregelmäßigkeiten im Wasserlauf entstehen. ίο the same expedient for manufacturing considerations must be taken to be the same size everywhere, by no means the same. If you take that now Width and width of the diffuser blades on the circumference of the diffuser, as previously in general usual, everywhere the same, the water leaves the diffuser at the circumference with the same speed everywhere, so it hits in the housing with water at sometimes lower, sometimes higher speeds together, causing considerable shock losses and irregularities in the watercourse.

Diese Verluste bezweckt unsere Erfindung dadurch aufzuheben, daß die Abmessungen der einzelnen Leitapparatschaufeln am Umfang des Leitrades verschieden groß gemacht werden, wodurch man die Austrittsgeschwindigkeiten verändern und den Wassergeschwindigkeiten im Gehäuse genau anpassen kann. Dagegen behalten die Kanäle des Leitapparates am Eintritt überall die gleiche Weite.Our invention aims to eliminate these losses by reducing the dimensions of the individual diffuser blades made of different sizes on the circumference of the diffuser thereby changing the exit velocities and the water velocities can adjust exactly in the housing. On the other hand, the ducts of the diffuser keep the same everywhere at the entrance Expanse.

Claims (1)

Patent-Anspruch:Patent claim: Leitapparat für Zentrifugalpumpen und Zentrifugalventilatoren, dadurch gekennzeichnet, daß durch Veränderung der Breite der einzelnen Leitschaufeln am Leitradumfang in tangentialer oder achsialer Richtung die Geschwindigkeit des austretenden Fördermittels den im Gehäuse herrschenden Geschwindigkeiten zwecks Vermeidung von Stoßverlusten angepaßt wird, so daß sich also der Austrittsquerschnitt der Leitkanäle entsprechend den im Gehäuse herrschenden Geschwindigkeiten ändert und der Austrittsquerschnitt in der Nähe des Druckstutzens am kleinsten ist.Guide apparatus for centrifugal pumps and centrifugal fans, characterized in that that by changing the width of the individual guide vanes on the guide wheel circumference in tangential or axial Direction of the speed of the exiting conveying means for the purpose of the speeds prevailing in the housing Avoidance of shock losses is adapted, so that the exit cross-section the guide channels changes according to the speeds prevailing in the housing and the exit cross-section is smallest near the pressure port. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT171073D Active DE171073C (en)

Publications (1)

Publication Number Publication Date
DE171073C true DE171073C (en)

Family

ID=436064

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
DE (1) DE171073C (en)

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