EP1906026A1 - Pompe à roue centrifuge - Google Patents

Pompe à roue centrifuge Download PDF

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Publication number
EP1906026A1
EP1906026A1 EP07116609A EP07116609A EP1906026A1 EP 1906026 A1 EP1906026 A1 EP 1906026A1 EP 07116609 A EP07116609 A EP 07116609A EP 07116609 A EP07116609 A EP 07116609A EP 1906026 A1 EP1906026 A1 EP 1906026A1
Authority
EP
European Patent Office
Prior art keywords
rotation
axis
zentrifugalradpumpe
pump housing
wear part
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.)
Granted
Application number
EP07116609A
Other languages
German (de)
English (en)
Other versions
EP1906026B1 (fr
Inventor
Frank Stähle
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.)
Frideco AG
Original Assignee
Frideco AG
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 Frideco AG filed Critical Frideco AG
Priority to EP07116609A priority Critical patent/EP1906026B1/fr
Publication of EP1906026A1 publication Critical patent/EP1906026A1/fr
Application granted granted Critical
Publication of EP1906026B1 publication Critical patent/EP1906026B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/04—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being viscous or non-homogenous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0027—Varying behaviour or the very pump
    • F04D15/0033—By-passing by increasing clearance between impeller and its casing
    • 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
    • F04D29/08—Sealings
    • F04D29/16—Sealings between pressure and suction sides
    • F04D29/165—Sealings between pressure and suction sides especially adapted for liquid pumps
    • F04D29/167—Sealings between pressure and suction sides especially adapted for liquid pumps of a centrifugal flow wheel
    • 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
    • F04D29/4286—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps inside lining, e.g. rubber
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/622—Adjusting the clearances between rotary and stationary parts
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps

Definitions

  • the invention relates to a centrifugal pump according to the preamble of claim 1.
  • Such a centrifugal pump or Zentrifugalradpumpe comprises a single, helically extending blade, which is rotatably arranged in a pump housing.
  • This pump is particularly suitable for the promotion of interspersed with solid admixtures liquids and especially for liquids containing abrasive admixtures.
  • This pump has a gap between the impeller edge of the blade and the pump housing. With increasing wear of the impeller edge, this gap increases, so that the sealing effect between impeller edge and pump housing is reduced, whereby the efficiency of the pump is reduced.
  • the publication FR 2681906 A1 discloses a Zentrifugalradpumpe with an impeller having a blade, as well as with a disposed within the pump housing displacement part, wherein the displacement part in the direction of the axis of rotation of the pump expands so that the displacement part and the blade edge a Form gap width.
  • the sliding part is mounted linearly movable, so that the width of the gap is adjustable. This arrangement has the disadvantage that the displacement part can tilt during the displacement, so that the displacement part is blocked.
  • the displacement part also has a stop which is arranged such that the displacement part can not be moved so far that the displacement part can touch the impeller edge of a newly inserted blade.
  • the impeller edge With increasing wear, the impeller edge is formed back, so that the gap between the sliding part and the impeller edge increases. Due to the stop, it is not possible with this sliding part to reduce the enlargement of the gap due to the wear of the impeller edge. This arrangement is therefore not suitable to reduce the caused by the wear of the impeller edge enlargement of the gap. In addition, the arrangement is not suitable to precisely adjust the size of the gap and to maintain this gap width.
  • the invention has for its object to provide a Zentrifugalradpumpe whose wearing wheel edge affects less on thegesrad the pump.
  • a centrifugal wheel pump comprising a pump housing and an impeller arranged therein, wherein the impeller is rotatably mounted about an axis of rotation, and wherein the impeller has at least one blade with a blade edge, and wherein within the pump housing a the blade edge so enclosing, extending in the direction of rotation of the rotation axis wear part is arranged, that the wear part with respect to the blade edge has a gap, and wherein the wear part in such respect Pump housing is slidably mounted, that a rotation of the Verschleissteils about the rotational axis causes a displacement of the Verschleissteils in the direction of the axis of rotation, thereby changing the gap between the blade edge and the wear part.
  • the Zentrifugalradpumpe on an adjustment, which is accessible from outside the pump housing, and which allows rotation of the Verschleissteils. This allows to set the gap between the wear part and the impeller from the outside.
  • the width of the gap between the Verschleissteil and the impeller during operation of the Zentrifugalradpumpe is adjustable.
  • the centrifugal wheel pump according to the invention comprising the wear part which can be adjusted by turning, can be configured in many different ways, for example as a helical centrifugal centrifugal pump or as a centrifugal pump.
  • the Zentrifugalradpumpe may also have an impeller with a plurality of blades.
  • the centrifugal wheel pump may also have a plurality of impellers, wherein each impeller has an associated wear part, and wherein at least one wear part is preferably individually adjustable.
  • the wear part is rotatably mounted in a helically extending groove or in a thread, so that a rotation of the Verschleissteils about its axis of rotation at the same time causes a displacement in the direction of the axis of rotation.
  • the pitch of the groove or the thread is configured relatively flat to cause a slight movement in the direction of the axis of rotation when turning the Verschleissteils, so that the gap width between the wear part and the blade edge is precisely adjustable.
  • FIG. 1 shows one from the document CH 611389 Known SSenzentrifugalradpumpe 1 comprising a housing 3 with a Saugkonusgepuruseteil 3a and a spiral housing part 3b, within which an impeller 2 is rotatably mounted about a rotational axis 2d.
  • the impeller 2 is driven by a motor, not shown, via the pump shaft 4 in the direction of rotation 4a, so that a conveyed by the Zentrifugalradpumpe 1 liquid is conveyed in the flow direction S flowing from the inlet opening 3c to the outlet opening 3c, wherein the impeller 2, a blade pressure side a and a Bucket suction side b forms.
  • the impeller 2 has a blade 2a with blade edge 2b, wherein a gap c is formed between the suction cone housing part 3a and the blade edge 2b, in the region of which a backflow from the blade pressure side a to the blade suction side b occurs.
  • the gap c increases with increasing wear of the blade edge 2b, which reduces the delivery rate and the efficiency of the Zentrifugalradpumpe 1.
  • FIG. 2 shows a side view of the centrifugal wheel pump 1 according to the invention, comprising a housing 3 with inlet opening 3c and outlet opening 3d, and comprising a wear part 5 rotatably arranged within the housing 3 about the axis of rotation 2d in the direction of rotation e.
  • the section shown in Figure 3 along the section line AA and the section shown in Figure 4 along the section line BB according to Figure 2 shows the Zentrifugalradpumpe 1 with housing 3, inlet opening 3c and outlet opening 3d, and disposed within the housing 3 impeller 2 and within The impeller 2 is fixedly connected to the pump shaft 4, and rotatably supported by this about a rotational axis 2d.
  • the wear part 5 surrounds the impeller 2 as shown, wherein the wear part 5 is mounted with respect to the housing 3, that a rotation of the Verschleissteils 5 causes in the circumferential direction to the rotation axis 2d, or in the direction e, a displacement of the Verschleissteils 5 in the direction of rotation of the rotation axis 2d ,
  • the Verschleissteil 5 has a transverse to the direction of rotation of the axis of rotation 2d groove 5d, which is mounted in a projecting pin 6 of the housing 3, so that rotation of the Verschleissteils 5 forces a displacement of the Verschleissteils 5 in the direction of the axis of rotation 2d.
  • These screws 7b extend, as shown in Figure 2, through the housing 3.
  • the housing 3 preferably has a thread for receiving the screw 7b, so that the screw head is outside the housing 3, and thus the screw 7b from outside the housing. 3 can be rotated, wherein the support point 7a acts within the housing 3 on the cam 5e.
  • the support point 7a acts within the housing 3 on the cam 5e.
  • the housing 3 as shown in FIG 2, oppositely disposed on the wear part 5 acting screws 7b.
  • the wear part 5 can be very precisely rotated by a, if necessary, larger angular range of for example up to 45 degrees, the screws 7b are tightened again after turning the Verschleissteils 5, that the support points 7a of both screws 7b bears against a respective cam 5e of the wearing part 5, so that the wearing part 5 is secured in the housing 3 with respect to rotation.
  • the wear part 5, as shown in Figure 4, two cylindrical outer contours 5g, 5h and the pump housing 3 has two cylindrical inner contours 3g, 3h, each forming a running in the direction of the axis of rotation 2d seat 53a, 53b, wherein these two seats 53a, 53b are arranged spaced apart in the direction of the rotation axis 2d, so that the wear part 5 is defined and guided in the direction of progression of the rotation axis 2d.
  • a circumferential groove 8 is also arranged in the housing 3 and / or in the wear part 5 as shown, in which advantageously a sealing ring is arranged to seal, as shown in Figure 4, the interior between the two grooves 8.
  • Figure 5 shows a detail aspect of Figure 4 in an enlarged view.
  • the wear part 5 is displaceably mounted in the direction d by the two seats 53a, 53b. Turning of the wearing part 5 causes, by the guide pins 6 engaging in the grooves 5d, as shown in FIG. 4, a displacement of the wearing part 5 in the direction d.
  • the wear part 5 has a portion whose inner surface 5f extends in accordance with the outer contour of the blade 2a, so that a gap c is formed between the blade edge 2b and the inner surface 5f.
  • FIG. 6 shows the wear part 5 in a perspective view.
  • the wearing part 5 comprises in each case a hollow cylindrical section 5b, 5c with a cylindrical outer contour 5g, 5h, and a conical section 5a, as well as two protruding cams 5e and two grooves 5d arranged in section 5b, only one of the grooves 5d of the section 5b being visible. Because the second groove 5b is offset by 180 degrees and therefore is arranged on invisible on the back.
  • This groove 5d for example, has a constant pitch, but may also have different or variable pitches.
  • the groove 5d as shown in Figure 6, a helically extending portion.
  • the groove 5d in the direction of rotation 4a to a distance from the impeller slope.
  • the groove 5d could also, as shown in FIG. 6, extend in the section 5c or in a structure 5i in the section 5a. In a further embodiment, it would also be sufficient to provide the wear section with a single groove 5d.
  • a groove 5d extending in the wear part 5 is shown in the illustrated exemplary embodiments, in which a fixedly arranged guide pin 6 engages.
  • a guide device with the same effect could also be obtained by the wear part 5 having at least one guide pin 6, which engages in a groove running, for example, on the inside of the pump housing 3.
  • the wear part 5 and the pump housing 3 could for example also form a common thread, in which the wear part 5 is rotatably mounted, wherein at the same time during rotation, a movement in the direction of the rotation axis 2d is performed.
  • the adjusting means 7 could also comprise an electrically or mechanically driven drive device.
  • the two adjusting means 7 can be actuated externally via an electrically conductive cable 7c.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Saccharide Compounds (AREA)
EP07116609A 2006-09-22 2007-09-17 Pompe à roue centrifuge Not-in-force EP1906026B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07116609A EP1906026B1 (fr) 2006-09-22 2007-09-17 Pompe à roue centrifuge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06121159A EP1906025A1 (fr) 2006-09-22 2006-09-22 Pompe centrifuge
EP07116609A EP1906026B1 (fr) 2006-09-22 2007-09-17 Pompe à roue centrifuge

Publications (2)

Publication Number Publication Date
EP1906026A1 true EP1906026A1 (fr) 2008-04-02
EP1906026B1 EP1906026B1 (fr) 2010-03-03

Family

ID=37759273

Family Applications (2)

Application Number Title Priority Date Filing Date
EP06121159A Withdrawn EP1906025A1 (fr) 2006-09-22 2006-09-22 Pompe centrifuge
EP07116609A Not-in-force EP1906026B1 (fr) 2006-09-22 2007-09-17 Pompe à roue centrifuge

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP06121159A Withdrawn EP1906025A1 (fr) 2006-09-22 2006-09-22 Pompe centrifuge

Country Status (5)

Country Link
EP (2) EP1906025A1 (fr)
CN (1) CN101149055B (fr)
AT (1) ATE459803T1 (fr)
DE (1) DE502007002982D1 (fr)
DK (1) DK1906026T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009149512A1 (fr) * 2008-06-13 2009-12-17 Weir Minerals Australia Ltd Chemise latérale ajustable pour une pompe
AU2013202757B2 (en) * 2008-06-13 2014-05-15 Weir Minerals Australia Ltd An adjustable side liner for a pump
AU2015202357B2 (en) * 2008-06-13 2017-02-02 Weir Minerals Australia Ltd An adjustable side liner for a pump
US9869326B2 (en) 2012-12-05 2018-01-16 Wilo Se Centrifugal pump in particular for waste water or polluted water
RU2707238C1 (ru) * 2018-06-12 2019-11-25 Вило Се Центробежный насос с корпусом

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2908012B1 (fr) * 2014-01-24 2019-02-27 McFinn Technologies Turbine radiale et boîtier pour pompe centrifuge
CN106762784A (zh) * 2016-12-06 2017-05-31 芜湖市容川机电科技股份有限公司 球墨铸铁钻井平台高压泵体
JP7124422B2 (ja) * 2018-04-27 2022-08-24 株式会社アイシン ポンプ
CN110594163A (zh) * 2019-10-21 2019-12-20 海斯特(青岛)泵业有限公司 一种带有强制喂料机构的水泵

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB215961A (en) * 1923-05-16 1924-05-22 W H Allen Sons & Company Ltd Improvements in centrifugal pumps
FR2134063A1 (fr) * 1972-04-28 1972-12-01 Renaud Georges
FR2290133A6 (fr) * 1973-02-09 1976-05-28 Materiel Processing Internal Pompe centrifuge
DE2642231A1 (de) * 1975-10-02 1977-04-14 Martin Staehle Einschaufel-zentrifugalpumpe zur foerderung von zaehfluessigen, insbesondere feststoffhaltigen medien
FR2681906A1 (fr) * 1991-09-27 1993-04-02 Renault Vehicules Ind Pompe centrifuge pour circuit de liquide de refroidissement de moteur a combustion.
DE29608236U1 (de) * 1996-05-07 1996-08-01 Kleindienst, Uwe, 23611 Bad Schwartau Kreiselpumpe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4037985A (en) * 1976-05-20 1977-07-26 Worthington Pump, Inc. Flushing liquid system for the wearing ring in centrifugal pumps and the wearing ring assembly and wearing ring for use therein
CN2606202Y (zh) * 2003-03-10 2004-03-10 宜兴市宙斯泵业有限公司 一种改进的双级离心泵
CN2802133Y (zh) * 2005-07-05 2006-08-02 宜兴市宙斯泵业有限公司 耐腐耐磨离心泵前泵盖

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB215961A (en) * 1923-05-16 1924-05-22 W H Allen Sons & Company Ltd Improvements in centrifugal pumps
FR2134063A1 (fr) * 1972-04-28 1972-12-01 Renaud Georges
FR2290133A6 (fr) * 1973-02-09 1976-05-28 Materiel Processing Internal Pompe centrifuge
DE2642231A1 (de) * 1975-10-02 1977-04-14 Martin Staehle Einschaufel-zentrifugalpumpe zur foerderung von zaehfluessigen, insbesondere feststoffhaltigen medien
FR2681906A1 (fr) * 1991-09-27 1993-04-02 Renault Vehicules Ind Pompe centrifuge pour circuit de liquide de refroidissement de moteur a combustion.
DE29608236U1 (de) * 1996-05-07 1996-08-01 Kleindienst, Uwe, 23611 Bad Schwartau Kreiselpumpe

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102066770B (zh) * 2008-06-13 2015-02-18 伟尔矿物澳大利亚私人有限公司 用于泵的可调节的侧衬套
AU2013202761B2 (en) * 2008-06-13 2015-02-19 Weir Minerals Australia Ltd An adjustable side liner for a pump
US20110158800A1 (en) * 2008-06-13 2011-06-30 Garry Bruce Glaves Liner coupling pin
EP2315948A4 (fr) * 2008-06-13 2013-04-03 Weir Minerals Australia Ltd Chemise latérale ajustable pour une pompe
EP2315947A4 (fr) * 2008-06-13 2013-06-12 Weir Minerals Australia Ltd Cheville de raccordement à douille
AU2009257193B2 (en) * 2008-06-13 2013-09-05 Weir Minerals Australia Ltd An adjustable side liner for a pump
CN103362871A (zh) * 2008-06-13 2013-10-23 伟尔矿物澳大利亚私人有限公司 泵罩和泵衬套
AU2013202757B2 (en) * 2008-06-13 2014-05-15 Weir Minerals Australia Ltd An adjustable side liner for a pump
AU2013202758B2 (en) * 2008-06-13 2014-06-19 Weir Minerals Australia Ltd An adjustable side liner for a pump
US8967953B2 (en) * 2008-06-13 2015-03-03 Weir Minerals Australia Ltd. Liner coupling pin
CN102066770A (zh) * 2008-06-13 2011-05-18 伟尔矿物澳大利亚私人有限公司 用于泵的可调节的侧衬套
WO2009149512A1 (fr) * 2008-06-13 2009-12-17 Weir Minerals Australia Ltd Chemise latérale ajustable pour une pompe
US8790077B2 (en) 2008-06-13 2014-07-29 Weir Minerals Australia Ltd. Adjustable side liner for a pump
EA023108B1 (ru) * 2008-06-13 2016-04-29 Уэйр Минералз Острэйлиа Лтд. Регулируемый боковой вкладыш для насоса
AP3711A (en) * 2008-06-13 2016-05-31 Weir Minerals Australia Ltd An adjustable side liner for a pump
EA025659B1 (ru) * 2008-06-13 2017-01-30 Уэйр Минералз Острэйлиа Лтд. Регулируемый боковой вкладыш для насоса
AU2015202357B2 (en) * 2008-06-13 2017-02-02 Weir Minerals Australia Ltd An adjustable side liner for a pump
CN103362871B (zh) * 2008-06-13 2017-03-29 伟尔矿物澳大利亚私人有限公司 泵罩和泵衬套
US9759224B2 (en) 2008-06-13 2017-09-12 Weir Minerals Australia Ltd. Adjustable side liner for a pump
US10047761B2 (en) 2008-06-13 2018-08-14 Weir Minerals Australia Ltd. Liner coupling pin
US9869326B2 (en) 2012-12-05 2018-01-16 Wilo Se Centrifugal pump in particular for waste water or polluted water
RU2707238C1 (ru) * 2018-06-12 2019-11-25 Вило Се Центробежный насос с корпусом

Also Published As

Publication number Publication date
ATE459803T1 (de) 2010-03-15
EP1906026B1 (fr) 2010-03-03
DE502007002982D1 (de) 2010-04-15
CN101149055A (zh) 2008-03-26
EP1906025A1 (fr) 2008-04-02
CN101149055B (zh) 2010-11-17
DK1906026T3 (da) 2010-05-31

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