EP0323384B1 - Kreiselpumpe - Google Patents

Kreiselpumpe Download PDF

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Publication number
EP0323384B1
EP0323384B1 EP88500127A EP88500127A EP0323384B1 EP 0323384 B1 EP0323384 B1 EP 0323384B1 EP 88500127 A EP88500127 A EP 88500127A EP 88500127 A EP88500127 A EP 88500127A EP 0323384 B1 EP0323384 B1 EP 0323384B1
Authority
EP
European Patent Office
Prior art keywords
chamber
opening
diffuser
water
hydroejecting
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 - Lifetime
Application number
EP88500127A
Other languages
English (en)
French (fr)
Other versions
EP0323384A3 (en
EP0323384A2 (de
Inventor
Pages Jose Pages
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.)
Bombas Electricas SA BOELSA
Original Assignee
Bombas Electricas SA BOELSA
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 Bombas Electricas SA BOELSA filed Critical Bombas Electricas SA BOELSA
Priority to AT88500127T priority Critical patent/ATE88546T1/de
Publication of EP0323384A2 publication Critical patent/EP0323384A2/de
Publication of EP0323384A3 publication Critical patent/EP0323384A3/fr
Application granted granted Critical
Publication of EP0323384B1 publication Critical patent/EP0323384B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F04D9/00—Priming; Preventing vapour lock
    • F04D9/04—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock
    • F04D9/06—Priming; Preventing vapour lock using priming pumps; using booster pumps to prevent vapour-lock of jet type

Definitions

  • the present invention relates to a centrifugal pump, of the type comprising a horizontal shaft electric motor and a coaxial pump body, essentially divided into a suction chamber and a treading chamber, the treading chamber of which is provided with at least a rotor rotating in a diffuser, driven by the shaft of the electric motor, a hydro-ejector member being arranged in the suction chamber according to the Bregel system, composed essentially by an injection nozzle and a diffusion nozzle based on the Venturi effect .
  • centrifugal pump which is the subject of this Utility Model ES-U-209.500, in which the injector and the Venturi device mentioned are arranged perpendicularly to the surface of the liquid to be pumped, so that even when the pump is at rest, the level bottom of the pump liquid is always above the highest point of the compartment where the diffuser rotor is housed and covers at least the lower end of the injector.
  • This pump has reduced dimensions and its weight is low, there is absolutely no need to incorporate a bottom valve therein since it is self-priming.
  • the pump which is the subject of the present invention also eliminates this drawback, which is characterized, essentially, by the fact that it comprises a chamber contiguous to the external face of the diffuser separated from the treading chamber by an essentially discoidal closing partition, provided in its upper half of an arcuate lumen, the curvature of the arc of which is slightly below 180 °, the closing partition mentioned also being provided on its internal face with a deflecting fin which, being arcuate and giving rise to a point of the rim of the upper half of the closing partition comes to a point of the upper rim of the light mentioned, the assembly consisting of the light and the deflector fin being arranged so as to constrain the water coming from the diffuser to circulate centrifugally inside the second chamber, so that any air bubbles contained in the mass of the circulating water can be driven through the light, going up towards the outside because of their lower density, while the water goes towards the bottom until the level of the water contained in the second mentioned chamber exceeds the lower edge of the light, then overflowing towards the
  • the mentioned hydro-ejector member is constituted by a closed monobloc, provided with an external sheath provided with a first opening directly connected to the water inlet, with a second opening adapted to so that it is opposite and connected to the water inlet opening in the diffuser, finally a third opening, connected to the trough chamber, which constitutes the water inlet in the injector the hydro-ejector organ.
  • the pump in question comprises an electric motor 1 and a coaxial pump body 2, essentially divided into a suction chamber 3 and a treading chamber 4.
  • This treading chamber 4 is provided inside with at least one rotor 7 which rotates in a diffuser 8 and which is driven by the shaft 9 of the electric motor 1.
  • a hydro-ejector member according to the Vogel system, which essentially comprises an injection nozzle 5 and a diffusion nozzle 6 based on the Venturi effect.
  • the pump is provided with a chamber 10 contiguous to the external face of the diffuser 8 and separated from the treading chamber 4 by an essentially discoidal closing partition.
  • This closing partition 11 is provided on its upper half with an arcuate opening 12 and a deflecting fin 13 which, originating at a point on the edge of the lower half of this closing partition 11, comes to a point on the upper edge of the light 12.
  • the assembly constituted by the light 12 and the deflecting fin 13 is arranged so as to force the water coming from the diffuser 8 to circulate in a centrifugal manner inside the second chamber 10, so that the possible air bubbles contained in the mass of the circulating water can be separated from the water and rise due to their lower density outside this partition 11, while the water overflows towards the treading chamber 4 when it exceeds the lower rim 14 light 12.
  • This is how part of the water recirculates through the injection nozzle 5, through the opening 15, entering the hydro-ejector member entirely devoid of air.
  • This hydro-ejector member is constituted by a closed monobloc, provided with an outer sheath 16 provided with a first opening 17 directly connected to the opening 18 of the water inlet, with a second opening 19 adapted so that '' it is opposite and connected to the water inlet opening in the diffuser 8, finally a third opening 15 connected to the trough chamber 4, which constitutes the water inlet in the injector 5 of the hydro-ejector member.
  • the pump which is the subject of the present invention, apart from completely eliminating the drawbacks mentioned above, has the fundamental advantage that for implementing self-priming, it only needs the fourth part of the water used with traditional pumps fitted with a hydro-ejector.
  • the hydro-ejector member is constituted by a closed monobloc, which allows an easy replacement to obtain different hydraulic characteristics of the pump.

Landscapes

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

Claims (2)

  1. Kreiselpumpe bestehend aus einem Elektromotor (1) mit horizontaler Welle und einem koaxialen Pumpengehäuse (2), hauptsächlich unterteilt in eine Ansaugkammer (3) und eine Druckkammer (4), die innen mit mindestens einem Rotor (7) bestückt ist, welcher sich in einem Diffusor (8) dreht und von der Welle (9) des Elektromotors (1) angetrieben wird, wobei in der Ansaugkammer (3) eine Wasserausspritzvorrichtung angeordnet ist, die hauptsächlich aus einer Einspritzdüse (5) und einer auf dem Venturi-Effekt basierenden Diffusionsdüse (6) besteht, dadurch gekennzeichnet, dass sie eine dritte Kammer (10) beinhaltet, welche an die Aussenseite des Diffusors (8) anschliesst und von der Druckkammer (4) durch ein vollständig scheibenförmiges Absperrorgan (11) getrennt ist, welches in seiner oberen Hälfte mit einer bogenförmigen öffnung (12) versehen ist, deren Bogenwinkel etwas unter 180° liegt und ausserdem auf seiner Innenseite mit einem Ablenkflügel (13) versehen ist, der aufgrund seiner Bogenform und da er von einem Punkt am Rand der oberen Hälfte des Absperrorgans (11) ausgeht, an einem Punkt oberhalb des Randes genannter öffnung endet, wobei die durch die öffnung und den Ablenkflügel (13) gebildete Einheit so entworfen wurde, dass das aus dem Diffusor (8) strömende Wasser durch sie gezwungen wird, im Inneren der dritten Kammer (10) kreisförmig zu strömen, so dass eventuelle in der strömenden Wassermasse enthaltene Luftblasen durch die öffnung (12) entweichen können, da sie aufgrund ihrer geringeren Dichte nach Aussen streben, während das Wasser in Bodenrichtung weiterfliesst, bis das in der zweiten erwähnten Kammer (4) enthaltene Wasser den unteren Rand (14) der öffnung (12) übersteigt und folglich in Richtung Druckkammer überströmt, von welcher aus ein Teil des Wassers erneut durch die Einspritzdüse (5) der Wasserausspritzvorrichtung fliesst und dort vollständig luftfrei einströmt.
  2. Krieselpumpe gemäss Patentanspruch 1, dadurch gekennzeichnet, dass die erwähnte Wasserausspritzvorrichtung aus einem geschlossenen Einzelblock besteht, der mit einem äusseren Mantel (16) versehen ist, welcher eine erste öffnung (19) enthält, die so angeordnet ist, dass sie der Wassereintrittsöffnung zum Diffusor (8) gegenüberliegt und eine Verbindung zu dieser darstellt, und schliesslich einer dritten, mit der Druckkammer (4) verbundenen öffnung ausgestattet ist, durch welche das Wasser in die Einspritzdüse der Wasserausspritzvorrichtung einströmt.
EP88500127A 1987-12-28 1988-12-27 Kreiselpumpe Expired - Lifetime EP0323384B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88500127T ATE88546T1 (de) 1987-12-28 1988-12-27 Kreiselpumpe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES8800215A ES2006285A6 (es) 1987-12-28 1987-12-28 Bomba centrifuga.
ES8800215 1987-12-28

Publications (3)

Publication Number Publication Date
EP0323384A2 EP0323384A2 (de) 1989-07-05
EP0323384A3 EP0323384A3 (en) 1989-11-29
EP0323384B1 true EP0323384B1 (de) 1993-04-21

Family

ID=8254611

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88500127A Expired - Lifetime EP0323384B1 (de) 1987-12-28 1988-12-27 Kreiselpumpe

Country Status (4)

Country Link
EP (1) EP0323384B1 (de)
AT (1) ATE88546T1 (de)
DE (1) DE3880466D1 (de)
ES (1) ES2006285A6 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1234116B (it) * 1989-06-07 1992-04-29 Novax S R L Pompa centrifuga autoadescante.
DD301952A9 (de) * 1989-08-09 1994-08-11 Apollowerk Goessnitz Gmbh Kombination von Radialradkreiselpumpe mit Strahlpumpe
IT229263Y1 (it) * 1992-01-24 1998-07-02 Ebara Italia Pompa centrifuga autoadescante
IT1287367B1 (it) 1996-11-27 1998-08-04 Calpeda A Spa Dispositivo diffusore e convogliatore per pompa monogirante centrifuga autoadescante.
ES2161191B1 (es) * 2000-03-27 2002-07-01 Bogemar Sl Bomba centrifuga con hidroeyector.
RU2175406C1 (ru) * 2000-05-26 2001-10-27 Несытов Евгений Константинович Центробежный самовсасывающий насос
ITPD20070294A1 (it) 2007-09-14 2009-03-15 Dab Pumps Spa Pompa centrifuga autoadescante di tipo jet
FR3020386B1 (fr) 2014-04-25 2017-08-18 Victor Jean Ballestra Dispositif d'evacuation sanitaire pour l'evacuation des eaux d'une douche
CN108953091A (zh) * 2018-08-30 2018-12-07 台州市禺工泵业科技有限公司 一种高效节能泵

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2525772A (en) * 1945-06-29 1950-10-17 F E Myers & Bro Co Convertible ejector pump
US2941474A (en) * 1956-08-20 1960-06-21 Fairbanks Morse & Co Self-priming pumping apparatus
US2934021A (en) * 1956-10-09 1960-04-26 F E Meyers & Bro Co Shallow well self-priming jet pump
CH484369A (de) * 1967-07-07 1970-01-15 Muanyagipari Ki Ein- oder mehrstufige selbstansaugende Pumpe
DE3409463C2 (de) * 1984-03-15 1986-06-26 Grundfos A/S, Bjerringbro Strömungspumpe, insbesondere Kreiselpumpe
DE3718273C2 (de) * 1986-09-01 1994-12-15 Apollowerk Goesnitz Gmbh Selbstansaugende horizontale Radialkreiselpumpe

Also Published As

Publication number Publication date
EP0323384A3 (en) 1989-11-29
EP0323384A2 (de) 1989-07-05
DE3880466D1 (de) 1993-05-27
ATE88546T1 (de) 1993-05-15
ES2006285A6 (es) 1989-04-16

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