EP1584820A1 - Pompe à écoulement mixte - Google Patents

Pompe à écoulement mixte Download PDF

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Publication number
EP1584820A1
EP1584820A1 EP04405214A EP04405214A EP1584820A1 EP 1584820 A1 EP1584820 A1 EP 1584820A1 EP 04405214 A EP04405214 A EP 04405214A EP 04405214 A EP04405214 A EP 04405214A EP 1584820 A1 EP1584820 A1 EP 1584820A1
Authority
EP
European Patent Office
Prior art keywords
vane
edge
inlet
impeller
pump
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
EP04405214A
Other languages
German (de)
English (en)
Other versions
EP1584820B1 (fr
Inventor
Martin 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
Priority to DE502004000769T priority Critical patent/DE502004000769D1/de
Application filed by Frideco AG filed Critical Frideco AG
Priority to DK04405214T priority patent/DK1584820T3/da
Priority to AT04405214T priority patent/ATE330126T1/de
Priority to EP04405214A priority patent/EP1584820B1/fr
Priority to US10/588,736 priority patent/US7510368B2/en
Priority to CNB2004800426761A priority patent/CN100419271C/zh
Priority to RU2006139075/06A priority patent/RU2358159C2/ru
Priority to JP2007506630A priority patent/JP5070039B2/ja
Priority to PCT/CH2004/000664 priority patent/WO2005098237A1/fr
Publication of EP1584820A1 publication Critical patent/EP1584820A1/fr
Application granted granted Critical
Publication of EP1584820B1 publication Critical patent/EP1584820B1/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
    • 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
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/04—Helico-centrifugal pumps

Definitions

  • the invention relates to a fferenzentrifugalradpumpe according The preamble of claim 1.
  • the invention further relates to a Method for conveying a medium with a Screw centrifugal pump according to the preamble of Claim 9.
  • centrifugal pump comprises a single, helical extending blade, which rotatably in a pump housing is arranged.
  • This pump is particularly suitable for pumping with solid admixtures permeated liquids, in particular for the promotion of waste water with long-fiber Ingredients.
  • the invention is based on the object To provide screw Centrifugalradpumpe which when conveying with solid admixtures interspersed liquids more advantageous Features.
  • Screw centrifugal pump comprising a pump housing with an inlet opening and a within the pump housing arranged impeller, which has a spiral running Having inlet blade edge, wherein in the region of Inlet opening projecting into the interior of the impeller Guide vane is arranged.
  • the guide vane the screw centrifugal wheel pump on a vane edge which in the direction of rotation of the impeller increasingly in Flow direction in the interior against the center of the Impeller protrudes.
  • the screw centrifugal pump according to the invention is especially advantageous in promoting higher concentration of fibrous solids prone to plait. Will the fibrous Stranded solids concentration is always higher, this leads to the suction line to a bale formation and increased friction in the impeller channel. If it reaches a certain limit, so The hydraulic forces alone are no longer sufficient for the material which has the consequence that the Screw centrifugal pump clogged and blocked.
  • the Screw centrifugal pump according to the invention prevents this Block by the spiral entry edge of the blade Schneckenradterrorisms against the fixed, protruding vane rotates, wherein the inlet blade edge and the vane cooperate in such a way that the Intermediate solid masses through the rotating Entry blade edge are detected and along the flow direction the inlet blade edge are loosened and / or pressed.
  • vane and Screw centrifugal wheel is added to the pumped medium to the hydraulic forces still a mechanical, im essentially acting in the direction of conveying force, what a Accumulation of solid components prevented in the conveying path.
  • these two Space curves preferably so mutually adapted running are designed that this when rotating the impeller under mutually short distance or touching each other move past each other.
  • Which is between the two Space curves located solids are mechanically in Course of the space curves, and thus essentially in Flow direction moves, and thereby loosened or in Flow direction pressed.
  • the Guide vane edge and / or the inlet blade edge at least partially on a cutting edge, so that the solids between the also mechanically moving space curves be crushed.
  • This is a crushing or dicing of the braids or fibers, which is a Attachment of the braids prevented in the conveyor and thus one continuous, reliable operation of the Screw centrifugal pump guaranteed without interruption.
  • the mutual shear, separation or clamping effect of the two Space curves also allow, depending on the design of the Guide vane edge and / or the inlet vane edge, a Cutting, crushing or weakening fibrous Solids like paper, strings, wood or solids like Plastic, rubber, metal or glass.
  • the screw centrifugal pump 1 comprises a fferenzentrifugalrad 2, which about a rotational axis 2d in Direction of rotation 4a is rotatably disposed in a pump housing 3.
  • the fferenzentrifugalrad 2 has a spiral running Entry blade edge 2a and 2c on an outer contour.
  • the fferenzentrifugalrad 2 is fixed to a pump shaft 4 connected.
  • the pump housing 3 comprises a Saugkonusgepuruseteil 3a, a spiral housing part 3b, a Inlet opening 3c and an outlet opening 3d. In the field of Inlet opening 3 c is a in the interior of the pump housing 3rd and in the interior of the lusterenzentrifugalrades.
  • FIG. 2 shows a direction designated by A in FIG Front view of the inlet opening 3 c, wherein in the interior of the pump. 1 the impeller 2 and the vane 5 can be seen. At the impeller 2 is the spiraling inlet blade edge 2a visible, which falls off against the axis of rotation 2d and axially into this grows. The foremost portion of the entrance blade edge 2a is not directly visible because of the vane 5 and therefore shown in dashed lines.
  • the guide vane 5 is designed in such a way that the vane edge 5a in the direction of rotation 4a increasingly in the direction the axis of rotation 2d, both in the radial and in the axial direction, in the interior of the impeller 2 protrudes.
  • the vane edge 5a forms a solid space curve, whereas the inlet blade edge 2a forms a rotatable about the wheel axis 2d space curve.
  • These two Room curves 2a, 5a are in the illustrated embodiment such mutually adapted designed that the Vane edge 5a a vane edge portion 5b and the Entry blade edge 2a a blade edge portion 2b within which the vane edge 5a and the Inlet blade edge 2a depending on the respective position of the Impeller 2 have a mutually small distance or yourself touching each other.
  • the mutually small distance can for example, have a value between 0.1 and 30 mm.
  • Position with mutually least distance is the point P1 on the blade edge portion 2b and the P2 on the Guide vane edge portion 5b shown.
  • the vane 5 can in many different ways such Pump housing 3 are arranged and configured that the fixed vane edge 5a and the rotating Ingress blade edge 2a cooperate such that solids by the mutual cooperation of the edges 2a, 5a mechanically conveyed, in particular in the flow direction S.
  • the blade edge section 2b in FIG Point P1 has a tangent T1 and the vane edge portion 5b at point P2 has a tangent T2, these two tangents T1, T2 as viewed from the inlet opening 3c of a viewed Have cut angle ⁇ .
  • This angle ⁇ is at least 10 Degrees, and is preferably between 30 degrees and 150 degrees, in particular between 60 degrees and 120 degrees.
  • the angle ⁇ is preferably never smaller than the angle at which sliding the solid on the inlet blade edge 2a or between Entry blade edge 2a and vane edge 5a no longer is guaranteed.
  • Figures 3 and 4 show in two detail views, analogous to Representation according to Figure 2, two different running Space curves or inlet blade edge 2a and vane edge 5a, wherein the enclosed angle ⁇ of the tangents T1, T2 of the Points P1, P2 in Figure 3 about 110 degrees and in Figure 4 about 90 degrees is.
  • This angle ⁇ is determined by the course of the space curves 2a, 5a determined, and thus in the construction of the fferenzentrifugalradpumpe 1 are selected accordingly.
  • the Course of the space curves 2a, 5a can be chosen such that the Angle ⁇ during movement of points P1, P2 in direction Q2 remains substantially constant.
  • Space curves 2a, 5a By running accordingly Space curves 2a, 5a, the angle ⁇ during the movement of the Points P1, P2 also increase and / or decrease in direction Q2.
  • At least part of the Blade edge portion 2b and / or the Leitschaufelkantenabiteses 5b as edge, cutting edge or Blade designed to a solid, which is located between the Sections 2b, 5b is to weaken or sever.
  • the screw centrifugal pump corresponding to those expected solids and admixtures thereby optimized be that the edge portions 2b, 5b and their angle ⁇ appropriately optimized to clog the pump to prevent and, for example, a good To achieve pump efficiency.
  • FIG. 5 shows a further exemplary embodiment of a fferenzentrifugalradpumpe 1, in whose inlet opening 3c a wear-resistant sleeve 7 is arranged, which with the guide vane. 5 is firmly connected. With a fastening means, not shown the sleeve 7 can be firmly connected to the pump housing 3.
  • the sleeve 7 and thus the Guide vane 5 in the direction of R movable has the particular advantage that the distance between inlet blade edge 2a and vane edge 5a, in particular the distance of the points P1, P2 in the direction of R or Q1 is adjustable.
  • the inlet blade edge 2a and / or the Vane edge 5a wears off during operation of the pump, so that the distance of points P1, P2 during operation with increased in time.
  • the sleeve 7 thus enables the position of Guide vane 5 in the direction of displacement R or Q 1 after certain To reset time intervals again.
  • the sleeve 7 can also be like this be configured that this also in the inlet opening 3c rotatable, i. with respect to the wheel axle 2d is rotatable about the sleeve 7 to rotate in the dissolved state, and thus the position of the To rotate the vane 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Centrifugal Separators (AREA)
EP04405214A 2004-04-07 2004-04-07 Pompe à écoulement mixte Expired - Lifetime EP1584820B1 (fr)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DK04405214T DK1584820T3 (da) 2004-04-07 2004-04-07 Skruecentrifugalpumpe
AT04405214T ATE330126T1 (de) 2004-04-07 2004-04-07 Schraubenzentrifugalradpumpe
EP04405214A EP1584820B1 (fr) 2004-04-07 2004-04-07 Pompe à écoulement mixte
DE502004000769T DE502004000769D1 (de) 2004-04-07 2004-04-07 Schraubenzentrifugalradpumpe
US10/588,736 US7510368B2 (en) 2004-04-07 2004-11-02 Screw-centrifugal pump
CNB2004800426761A CN100419271C (zh) 2004-04-07 2004-11-02 螺旋离心泵和使用该螺旋离心泵输送介质的方法
RU2006139075/06A RU2358159C2 (ru) 2004-04-07 2004-11-02 Винтовой центробежный насос
JP2007506630A JP5070039B2 (ja) 2004-04-07 2004-11-02 スクリュー遠心ポンプおよびスクリュー遠心ポンプを使用した、固体添加物で満たされた液体の運搬方法
PCT/CH2004/000664 WO2005098237A1 (fr) 2004-04-07 2004-11-02 Pompe centrifuge a vis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04405214A EP1584820B1 (fr) 2004-04-07 2004-04-07 Pompe à écoulement mixte

Publications (2)

Publication Number Publication Date
EP1584820A1 true EP1584820A1 (fr) 2005-10-12
EP1584820B1 EP1584820B1 (fr) 2006-06-14

Family

ID=34896183

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04405214A Expired - Lifetime EP1584820B1 (fr) 2004-04-07 2004-04-07 Pompe à écoulement mixte

Country Status (9)

Country Link
US (1) US7510368B2 (fr)
EP (1) EP1584820B1 (fr)
JP (1) JP5070039B2 (fr)
CN (1) CN100419271C (fr)
AT (1) ATE330126T1 (fr)
DE (1) DE502004000769D1 (fr)
DK (1) DK1584820T3 (fr)
RU (1) RU2358159C2 (fr)
WO (1) WO2005098237A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2169234A2 (fr) * 2007-07-17 2010-03-31 Gerardus Augustinus Maria Manshanden Pompe submersible sans risque pour les poissons
EP2908012A3 (fr) * 2014-01-24 2015-12-30 McFinn Technologies Turbine radiale et boîtier pour pompe centrifuge

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5404140B2 (ja) * 2009-04-01 2014-01-29 株式会社東芝 テンプレート及び半導体装置の製造方法
US8506236B2 (en) * 2009-08-03 2013-08-13 Ebara International Corporation Counter rotation inducer housing
US8550771B2 (en) * 2009-08-03 2013-10-08 Ebara International Corporation Inducer for centrifugal pump
US20110027071A1 (en) * 2009-08-03 2011-02-03 Ebara International Corporation Multi-stage inducer for centrifugal pumps
US9631622B2 (en) * 2009-10-09 2017-04-25 Ebara International Corporation Inducer for centrifugal pump
DK2397698T3 (da) * 2010-06-17 2013-01-02 Frideco Ag Transportør
CN102400919A (zh) * 2011-11-18 2012-04-04 江苏国泉泵业制造有限公司 一种固液两相流螺旋离心泵
CN102661282A (zh) * 2012-04-16 2012-09-12 杭州萧山美特轻工机械有限公司 开式螺旋纸浆泵
CN103195755B (zh) * 2013-04-11 2015-10-07 南京布鲁克林环保设备有限公司 一种单叶片螺旋离心叶轮
DK2894342T3 (en) 2014-01-12 2017-04-03 Alfa Laval Corp Ab SELF-TILTING CENTRIFUGAL PUMP
EP2894343B2 (fr) 2014-01-12 2021-09-01 Alfa Laval Corporate AB Pompe centrifuge à amorçage automatique
KR102231079B1 (ko) * 2014-07-08 2021-03-24 엘지전자 주식회사 배수 펌프 어셈블리 및 이를 구비하는 의류 건조기
KR101588137B1 (ko) * 2014-10-24 2016-01-22 엘지전자 주식회사 배수 펌프 어셈블리 및 이를 구비하는 의류 건조기
DE102020125805A1 (de) * 2020-10-02 2022-04-07 Frideco Ag Pumpensystem und Verfahren zum Betrieb eines Pumpensystems
CN112636910B (zh) * 2020-12-29 2021-08-24 北京深思数盾科技股份有限公司 临时密码的生成与验证方法、设备及系统
CN115994394B (zh) * 2023-02-21 2023-11-17 上海中韩杜科泵业制造有限公司 离心泵叶轮造型方法、装置以及设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH394814A (de) * 1961-08-29 1965-06-30 Staehle Marin Schneckenradpumpe
US3340812A (en) * 1964-07-01 1967-09-12 Schlesiger & Co K G Centrifugal pump
EP0233859A1 (fr) * 1986-02-14 1987-08-26 Röhren- und Pumpenwerk Rudolf Bauer Aktiengesellschaft Pompe centrifuge auto-aspirante pour traitement de liquides intensément mêlés de fibres
US4778336A (en) * 1987-07-09 1988-10-18 Weil Pump Company Cutter pump subassembly

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1315547A (en) 1969-05-23 1973-05-02 Staehle M Axial flow pump for pumping liquids containing solids in suspension
JPS5136721Y2 (fr) * 1973-09-06 1976-09-09
JPS5357507A (en) * 1976-11-04 1978-05-24 Kubota Ltd Cutter underwater pumps
FR2460404A1 (fr) 1979-07-05 1981-01-23 Schneider Hans Ulrich Pompe pour le transport de fluides
SU1132062A1 (ru) 1983-03-10 1984-12-30 Научно-Исследовательский И Конструкторско-Технологический Институт Городского Хозяйства Центробежный насос дл перекачивани неоднородных сред
SU1286817A1 (ru) 1985-04-09 1987-01-30 Центральный Научно-Исследовательский И Проектно-Технологический Институт Механизации И Электрификации Животноводства Южной Зоны Ссср Насос
SU1677371A1 (ru) 1989-06-08 1991-09-15 А. Э. Кин, О. В. Дадашев и А. И. Рудштейн Насос дл перекачивани неоднородных сред
CN2388377Y (zh) * 1999-08-06 2000-07-19 山东青州市南张石油机械厂 一种剪切泵预剪切装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH394814A (de) * 1961-08-29 1965-06-30 Staehle Marin Schneckenradpumpe
US3340812A (en) * 1964-07-01 1967-09-12 Schlesiger & Co K G Centrifugal pump
EP0233859A1 (fr) * 1986-02-14 1987-08-26 Röhren- und Pumpenwerk Rudolf Bauer Aktiengesellschaft Pompe centrifuge auto-aspirante pour traitement de liquides intensément mêlés de fibres
US4778336A (en) * 1987-07-09 1988-10-18 Weil Pump Company Cutter pump subassembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2169234A2 (fr) * 2007-07-17 2010-03-31 Gerardus Augustinus Maria Manshanden Pompe submersible sans risque pour les poissons
EP2908012A3 (fr) * 2014-01-24 2015-12-30 McFinn Technologies Turbine radiale et boîtier pour pompe centrifuge
US10094384B2 (en) 2014-01-24 2018-10-09 Mcfinn Technologies, Llc Radial impeller and casing for centrifugal pump

Also Published As

Publication number Publication date
RU2006139075A (ru) 2008-05-20
US7510368B2 (en) 2009-03-31
WO2005098237A1 (fr) 2005-10-20
JP5070039B2 (ja) 2012-11-07
CN1926338A (zh) 2007-03-07
ATE330126T1 (de) 2006-07-15
EP1584820B1 (fr) 2006-06-14
RU2358159C2 (ru) 2009-06-10
CN100419271C (zh) 2008-09-17
DK1584820T3 (da) 2006-07-31
DE502004000769D1 (de) 2006-07-27
US20070172345A1 (en) 2007-07-26
JP2007532812A (ja) 2007-11-15

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