EP1108894B1 - Pompe centrifuge pour des matières visqueuses - Google Patents

Pompe centrifuge pour des matières visqueuses Download PDF

Info

Publication number
EP1108894B1
EP1108894B1 EP00126934A EP00126934A EP1108894B1 EP 1108894 B1 EP1108894 B1 EP 1108894B1 EP 00126934 A EP00126934 A EP 00126934A EP 00126934 A EP00126934 A EP 00126934A EP 1108894 B1 EP1108894 B1 EP 1108894B1
Authority
EP
European Patent Office
Prior art keywords
pump
holder
pump according
housing
cutting
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
EP00126934A
Other languages
German (de)
English (en)
Other versions
EP1108894A2 (fr
EP1108894A3 (fr
Inventor
Erich Stallkamp
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1108894A2 publication Critical patent/EP1108894A2/fr
Publication of EP1108894A3 publication Critical patent/EP1108894A3/fr
Application granted granted Critical
Publication of EP1108894B1 publication Critical patent/EP1108894B1/fr
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
    • 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
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use

Definitions

  • the invention relates to a pump, in particular a Centrifugal pump for thick matter, with the characteristics of Preamble of claim 1.
  • Such pumps are used in particular as slurry pumps used and in containers with pumpable, viscous substances lowered.
  • the pump is on up lowered the bottom of the container.
  • Inlet directed above is achieved that the on the Foreign objects located on the floor, such as Stones, not immediately sucked in.
  • the invention is therefore based on the object To further develop the pump of the type mentioned at the beginning, that the suction of the pump is increased and a Clogging by foreign substances is effectively prevented.
  • a pump especially a centrifugal pump for thick matter, with a Drive linkage, at its lower end Pump housing, or the actual pump, with a Holder is arranged at a distance from the drive linkage, the housing having an upward inlet has, the holder according to the invention in outline crown-shaped, being in the upper area bulges outwards.
  • the holder according to the invention in outline crown-shaped, being in the upper area bulges outwards.
  • the holder is essentially made up of two Striving formed. These connect the pump to the Drive linkage, so that between the struts only the drive shaft that extends inside the Drive linkage is arranged and in the pump Impeller drives. Basically, it is also possible to have three or more struts, but this will make the restricted space between the struts and the free cross section reduced. Basically, it is favorable to use as few struts as possible. Also the use of a single strut is conceivable.
  • the holder has an arcuate shape exterior shape. Basically they are also angular Forms conceivable, but it is preferred to use the holder to form an arc, as a result of which a higher Stability and easier editing possible becomes.
  • the holder is particularly in the upper area domed on the outside and then extends essentially straight to the lower attachment point on the pump.
  • the holder is approximately crown-shaped in outline. Other shapes are also possible, such as one Form each strut of the holder as a semicircle.
  • the holder is at least as wide trained as the pump. This will make a big one Cross section of the holder ensured. In particular is it is preferred to design the holder so that it fits into its largest external dimensions up to the pump housing extends beyond.
  • the pump preferably has a spiral housing with a impeller arranged therein, so that an inlet of is given above and on the side the outlet from the pump takes place and from there, for example, via a hose is pumped up.
  • the cutting propeller is preferably the same Drive shaft driven like one in the pump arranged impeller. This is the structure of the pump overall particularly easy. Furthermore, it is preferred to design the cutting propeller with two blades. Other propeller designs are also fundamental possible, but it has been shown that a double wing Cutting propeller particularly good results in terms of the cutting effect.
  • the inner surface adjacent to a peripheral edge of the cutting propeller is. This will ensure that Cutting propeller no large parts over to the inlet can reach. Rather, solids between the Cutting ring and the cutting propeller crushed.
  • the upper one is also preferred Corner area of the cutting ring designed as a cutting edge, so that longer solid, such as straw, over this corner area and be cut off.
  • the cutting propeller is preferably about halfway up arranged of the holder. This is particularly the case if the Holder is crown-shaped and above the Cutting propellers a comparatively large one Feed cross section remains.
  • the Pump up a lower support bearing for the drive shaft.
  • the drive shaft is additional in this support bearing stored so that protection against radial impacts consists.
  • Fig. 1 is a pump 1, namely a centrifugal pump for Represented thick matter.
  • the pump instructs Drive linkage 2 with a shaft 3 running therein.
  • the wave is either direct from one Electric motor drive or an angular gear 4 from an engine, for example a tractor drive, operated.
  • the drive linkage 2 is via a holder 5 connected to the housing 6, a spiral housing.
  • the continuous shaft 3 drives in the housing 6 arranged impeller 7, which by the upward open inlet 8 pumps incoming liquid.
  • the Housing 6 has a lower cover 9, the one has centrally arranged receptacle 10, into which a Support bearing 11 can be used, the shaft 3 in the lower Supported area and thus secures against radial impacts. Furthermore, there is a split ring 12 in the housing 6 intended.
  • the parts of the housing 6 are essentially screwed together.
  • the Fastened holder 5 which has two struts 15 and 16, which are arranged on opposite sides and in Outline about crown shape.
  • the holder 15 is on its lower attachment point 17 in the outer area attached to the housing 6 and extends from there diagonally outwards and upwards.
  • the Struts 16 and 17 In the upper area are the Struts 16 and 17 then guided in an arc and extend substantially horizontally to one upper attachment point 18 at which the holder with the Drive linkage 2 is connected.
  • the drive linkage 2 has an outer tube 19 which is connected to a ring 20 is jammed.
  • the drive linkage 2 is with the holder connected by screw connections.
  • Fig. 2 the lower area of the pump is in shown perspective view.
  • the spiral pump is also the outlet 28 recognizable.
  • the cutting propeller 25 is arranged, which essentially consists of two semicircles that are twisted against each other are so that protruding cutting edges 29 are formed be and by the slope of the individual parts of the Cutting propeller 25 a pressure towards the inlet can be built.
  • the supports 15 and 16 of the holder 5 have the of the attachment points 17 and 18 of the Support bulbous shape facing outwards.

Landscapes

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

Claims (14)

  1. Pompe, en particulier pompe centrifuge, pour liquides épais, comportant une tringlerie de commande (2) dans la zone d'extrémité inférieure de laquelle un carter (6) de la pompe est disposé à une certaine distance de ladite tringlerie de commande (2) grâce à une fixation (5), le carter (6) ayant une entrée (8) dirigée vers le haut, et la fixation (5) présentant une forme élargie vers l'extérieur par rapport à une ligne droite, entre les points de fixation (17, 18) de la fixation (5) sur la tringlerie (2) et le carter (6) de la pompe,
       caractérisée en ce que la fixation (5) a un profil à peu près en forme de couronne, étant précisé qu'elle est bombée vers l'extérieur dans la zone supérieure.
  2. Pompe selon la revendication 1, caractérisée en ce que la fixation (5) se compose essentiellement de deux montants (15, 16).
  3. Pompe selon la revendication 1 ou 2, caractérisée en ce que la fixation (5) est arquée.
  4. Pompe selon l'une des revendications précédentes, caractérisée en ce que la fixation (5) est bombée vers l'extérieur, dans la zone supérieure, et s'étend ensuite sensiblement en ligne droite vers le point de fixation inférieur (17) sur le carter (6) de la pompe.
  5. Pompe selon l'une des revendications précédentes, caractérisée en ce que la fixation (5) est au moins aussi large que le carter (6) de la pompe.
  6. Pompe selon l'une des revendications précédentes, caractérisée en ce que la pompe comporte une volute avec un rotor (7) disposé dans celle-ci.
  7. Pompe selon l'une des revendications précédentes, caractérisée en ce qu'une hélice coupante (25) est disposée dans la zone de la fixation (5) située au-dessus de l'entrée (8).
  8. Pompe selon la revendication 7, caractérisée en ce que l'hélice coupante (25) est entraínée par le même arbre de commande (2) qu'un rotor (7) disposé dans le carter (6) de la pompe.
  9. Pompe selon la revendication 7 ou 8, caractérisée en ce que l'hélice coupante (25) a deux pales.
  10. Pompe selon l'une des revendications 7 à 9, caractérisée en ce qu'il est prévu sur la fixation (5) un anneau coupant (26) dont la surface intérieure est voisine du bord périphérique de l'hélice coupante (25).
  11. Pompe selon l'une des revendications 7 à 10, caractérisée en ce que le bord périphérique de l'hélice coupante (25) a une arête vive.
  12. Pompe selon l'une des revendications 7 à 11, caractérisée en ce qu'une zone d'angle supérieure (27) de l'anneau coupant (26) est conçue comme une arête coupante.
  13. Pompe selon l'une des revendications 7 à 12, caractérisée en ce que l'hélice coupante (25) est disposée à peu près à mi-hauteur de la fixation (5).
  14. Pompe selon l'une des revendications précédentes, caractérisée en ce que la pompe comporte un palier d'appui (11) pour l'arbre de commande (3).
EP00126934A 1999-12-18 2000-12-08 Pompe centrifuge pour des matières visqueuses Expired - Lifetime EP1108894B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19961196A DE19961196A1 (de) 1999-12-18 1999-12-18 Pumpe, insbesondere Kreiselpumpe für Dickstoffe
DE19961196 1999-12-18

Publications (3)

Publication Number Publication Date
EP1108894A2 EP1108894A2 (fr) 2001-06-20
EP1108894A3 EP1108894A3 (fr) 2002-07-17
EP1108894B1 true EP1108894B1 (fr) 2004-05-06

Family

ID=7933235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00126934A Expired - Lifetime EP1108894B1 (fr) 1999-12-18 2000-12-08 Pompe centrifuge pour des matières visqueuses

Country Status (4)

Country Link
EP (1) EP1108894B1 (fr)
AT (1) ATE266151T1 (fr)
DE (2) DE19961196A1 (fr)
DK (1) DK1108894T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20130390A1 (it) * 2013-03-15 2014-09-16 Euroacque S R L Pompa disincrostatrice

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD79227A (fr) *
US2714354A (en) * 1952-09-08 1955-08-02 Orrin E Farrand Pump
DE2040392A1 (de) * 1970-08-13 1972-02-17 Esterer Ag Maschf Tauchschneidpumpe
DE2901638B1 (de) * 1979-01-17 1979-08-30 Gascoigne Suedstall Gmbh Kreiselpumpe fuer mit Feststoffen versetzte Fluessigkeiten
DE3372396D1 (en) * 1982-10-28 1987-08-13 Goodwin R Int Ltd Agitating particulate solids
DE3640813A1 (de) * 1986-05-16 1987-11-26 Emu Unterwasserpumpen Gmbh Unterwasser-kreiselpumpe
US5256032A (en) * 1992-05-26 1993-10-26 Vaugan Co., Inc. Centrifugal chopper pump
DE19609712A1 (de) * 1996-03-13 1997-09-18 Uts Umwelt Technik Sued Gmbh Pumpe
DE19638080A1 (de) * 1996-09-19 1998-03-26 Uts Umwelt Technik Sued Gmbh Pumpe

Also Published As

Publication number Publication date
DE50006317D1 (de) 2004-06-09
DE19961196A1 (de) 2001-06-28
EP1108894A2 (fr) 2001-06-20
DK1108894T3 (da) 2004-08-30
ATE266151T1 (de) 2004-05-15
EP1108894A3 (fr) 2002-07-17

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