EP1891334B9 - Kreiselpumpe - Google Patents
Kreiselpumpe Download PDFInfo
- Publication number
- EP1891334B9 EP1891334B9 EP05750409A EP05750409A EP1891334B9 EP 1891334 B9 EP1891334 B9 EP 1891334B9 EP 05750409 A EP05750409 A EP 05750409A EP 05750409 A EP05750409 A EP 05750409A EP 1891334 B9 EP1891334 B9 EP 1891334B9
- Authority
- EP
- European Patent Office
- Prior art keywords
- impeller
- centrifugal pump
- pump according
- vanes
- casing
- 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
Links
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 239000007787 solid Substances 0.000 claims abstract description 9
- 238000005086 pumping Methods 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims 2
- 230000000630 rising effect Effects 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
Images
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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2261—Rotors specially for centrifugal pumps with special measures
- F04D29/2288—Rotors specially for centrifugal pumps with special measures for comminuting, mixing or separating
-
- 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
- F04D7/045—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 with means for comminuting, mixing stirring or otherwise treating
Definitions
- the present invention relates to a centrifugal pump for conveying liquids with solids and gas admixtures, in particular a Kanalradpumpe, according preamble of claim 1.
- the invention has for its object to provide a centrifugal pump, in which the ability to transport gas accumulations, is significantly improved.
- a free-flow pump comprises an impeller chamber in which an impeller is arranged, and a vortex chamber extending in front of the impeller chamber, which is provided by blades is not crossed out.
- the liquid enters the blade channels axially near the hub from the end face of the impeller, migrates outwards on a rim of approximately 180 ° and leaves the impeller in the outer region in the axial, but reverse direction, on the front side.
- the exiting liquid causes the fluid mass in the vortex chamber by pulse exchange in rotation.
- Single wider blades will be like in DE 34 08 810 C2 described used to improve the coupling effect on the liquid mass in the swirl chamber. Due to the way the liquid is taken through the impeller, the widening of the blades, which is anyway to be limited, also equals that of a blade extension, measured along the flow path.
- the per se known centrifugal pump in particular channel wheel pump, an impeller chamber, in which an impeller is arranged, but have no vortex chamber in contrast to free-flow pumps.
- the interior of the correspondingly redesigned housing of the inventive centrifugal pump now consists of a front and one of them separated by a virtual plane rear room part.
- the front part of the blade (s) extends while the impeller plate and the rear part of the blade (s) connected thereto are accommodated in the rear space part.
- FIG. 1 shown is an impeller 10 of a liquid inlet 2 and output 3, respectively. enclosing a suction and outlet opening housing 1.
- the impeller 10 is mounted on a shaft 60 driven by a motor, not shown.
- the housing 1, the impeller 10 and the shaft 60 have a common axis of symmetry 1A.
- the inner space 6 of the housing 1 consists of a front chamber part 5A encompassing an annular space or spiral collecting chamber 4 and a rear room part 5B separated from it by a virtual plane ⁇ T ⁇ .
- This plane ⁇ T ⁇ roughly coincides with the plane (not shown) which contains the rear (also not referenced) generatrix of the aperture 3 and which is orthogonal to the axis of symmetry 1A.
- the impeller 10 comprises a number of preferably curved blades 15 carrying a number of preferably curved blades 15, having a front 12 and a rear surface 13, corresponding to the size of the solids.
- the front part 15F and the rear part 15R of the blade (s) 15 extend in the front 5A respectively.
- the front edge 16 of the blade 15 may be in the immediate vicinity of the inner surface 7 of the housing wall portion 7A extending around the entrance.
- the peripheral edge 17 of the front part 15F of the blades 15 can move close to the liquid outlet 3.
- a defined depending on the design of the pump, rotationally symmetrical housing surface 8, 8A of the housing 1 preferably encloses narrow (that is in the order of a few millimeters) the impeller 11, that is, the peripheral surface 14 and the example according to flush peripheral edges 17 of the blades 15 and the rear part 15R of these blades.
- the rotation surface 8 is cylindrical around the impeller plate 11, while the rotation surface 8A, for example, cylindrical (on the FIG. 1 this contour is indicated only in a dotted line) or may be conical with a cone angle 2 ⁇ , the angle ⁇ preferably being ⁇ (less than or equal to) 20 °.
- the choice of impeller design, in particular the peripheral edges 17 and the peripheral surface 14, is determined as known to those skilled in the art in view of the specific speed n q .
- the impeller plate is arranged such that its front surface is at least approximately in the virtual plane ⁇ T ⁇ , while the blades extend entirely in the impeller chamber located in front of this level ⁇ T ⁇ .
- the surface 12 of the impeller plate 11 is offset by a distance D to the rear, ie direction drive, the blades are widened by this distance (part 15R of the blades) and the original impeller chamber 5A to another impeller chamber part 5B with the distance D corresponding volume is increased.
- the experiments have shown that the distance D in a range of 25% to 75% of Total width of the blades should be 15, preferably at about 50% of the total width.
- the rear surface 13 of the impeller plate 11 may be located in the immediate vicinity of the surface 9 of the rear wall 9A of the housing 1. According to a variant, however, a greater distance can be provided between the surfaces 13, 9 in order to leave room for ribs 18 (on the surface 13) or 19 (on the surface 9) attached to the one and / or other of these surfaces.
- the ribs 18 known per se may be curved radially or, for example, in a manner similar to the blades 15 (see FIG FIG. 3 , Reference numeral 23).
- the ribs 19 which are not known, however, are preferably radial and fulfill the function of a swirl brake, avoid a centrifuge effect and thus ensure a better gas flow.
- FIG. 2 a second embodiment is shown, which in comparison to the first or basic embodiment described above has the same housing 1, but is provided with an over the shaft 60 driven impeller 20 whose impeller plate 21 is provided with a blade system 25.
- This blade system consists on the one hand of at least one with the blade 15 identical or at least similar wide blade 25L, the front edge 26A can move in the immediate vicinity of the inner surface 7 of the front wall portion 7A of the housing 1, and additionally on the other hand of at least one narrower, preferably curved auxiliary blade 25S extending at least partially in the rear impeller chamber 5B.
- This means that the leading edge 26B of this auxiliary blade 25S is in the virtual plane ⁇ T ⁇ or in close proximity to that plane ⁇ T ⁇ Area can lie.
- the latter may be flat and parallel or oblique to the plane ⁇ T ⁇ or curved.
- the edges 26B may be orthogonal or have a different profile to the axis of symmetry 1A, for example outwardly or inwardly (for illustrative purposes, the dotted line 26C shows a possible tapered shape of the leading edge of the auxiliary blades 25S).
- the distance D between the front surface 22 of the impeller plate 21 and the front edge 26B corresponding to the width (or average width (determined at about half radius of the impeller blade)) of the auxiliary blades 25S is to be in a range of 25% to 75% of the total width B g of the wide blades 25L, preferably at about 50% of the stated overall width, so that the blades 25S extend substantially only in the rear impeller chamber 5B.
- the rear surface 23 of the impeller plate 21 may be in the immediate vicinity of the surface 9 of the rear wall 9A of the housing 1 or according to a variant between these surfaces 23, 9 a greater distance may be provided in order to leave enough space for the attachment of preferably radially extending ribs 28 (on the surface 23) and ribs 29 (on the surface 9) on one and / or other of these surfaces.
- a connected to the shaft 60 impeller 30 with axis 100A of a liquid inlet 102 and exit 103 having housing 100 is enclosed.
- the housing 100 is similar to the housing 1 and has a front chamber 105A surrounded by a collection chamber 104 similar to the collection chamber 4 and a rear chamber 105B separated by the virtual plane ⁇ T ⁇ .
- the impeller 30 offset rearwardly by the distance D comprises a vane system 35 connected to an impeller blade 31, which consists of at least one wide vane 35L and at least one small auxiliary vane 35S, preferably three each, as mentioned in the second embodiment.
- the auxiliary blades 35S may be shaped similar to the auxiliary blades 25S, with only one leading edge 36B shown here.
- the auxiliary blades 35S and the impeller plate 31 are surrounded by an outer ring 34.
- the inner surface 34B of the ring 34 can be made conical with a cone angle of 2 ⁇ (with ⁇ preferably ⁇ 20 °).
- the impeller plate 31, the ring 34 and the associated Auxiliary vanes 35S extend in the impeller chamber 105B.
- the peripheral edges 37L which can be moved past in relative proximity to the liquid outlet 103, can run parallel or obliquely to the axis of symmetry 100A or else be configured differently.
- the front edges 36A of the wide blades 35L are covered by a cover plate 40.
- the latter is rotatably mounted in a ring 110 pressed into a sealing gap 111 in the vicinity of the inlet 102 of the housing 100.
- the front surface 41 of the cover plate 40 can move in the immediate vicinity of the surface 107 of the wall portion 107A.
- This cover disk which is known per se, is often provided for stability reasons or for pumps with a low specific speed n q .
- the rear surface 33 of the impeller plate 31 may be in the immediate vicinity of the surface 109 of the rear wall 109A of the housing 100 or according to a variant between these surfaces 33, 109 a greater distance may be provided to provide sufficient space for to allow the attachment of preferably radially extending ribs 38 (on the surface 33) and ribs 39 (on the surface 109) on one and / or other of these surfaces.
- the impeller 31 may be provided with at least one hole 45.
- three or six holes 45 with axis 45A are distributed between the blades 35L and the auxiliary blades 35S and dimensioned accordingly.
- the axes 45A extend at a distance R parallel to the axis 100A.
- the dimension of the radius R is preferably selected to be approximately in an interval between one half and two thirds of the peripheral radius of the Impeller plate is located. It has been found that these holes 45 markedly improve the efficiency of escape of the gas to the outside.
- wheels 11 and 21 according to the first and second embodiment with individual or all based FIG. 4 described additional features of the impeller 30, so outer ring 34, holes 45, cover plate 40, or provided with other features known in the art.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
- Reciprocating Pumps (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL05750409T PL1891334T3 (pl) | 2005-06-16 | 2005-06-16 | Pompa wirowa |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CH2005/000337 WO2006133577A1 (de) | 2005-06-16 | 2005-06-16 | Kreiselpumpe |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1891334A1 EP1891334A1 (de) | 2008-02-27 |
EP1891334B1 EP1891334B1 (de) | 2009-01-14 |
EP1891334B9 true EP1891334B9 (de) | 2009-08-26 |
Family
ID=34970104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05750409A Active EP1891334B9 (de) | 2005-06-16 | 2005-06-16 | Kreiselpumpe |
Country Status (12)
Country | Link |
---|---|
US (1) | US8025478B2 (pt) |
EP (1) | EP1891334B9 (pt) |
JP (1) | JP5384103B2 (pt) |
CN (1) | CN101208521B (pt) |
AT (1) | ATE421043T1 (pt) |
BR (1) | BRPI0520297B1 (pt) |
CA (1) | CA2611141C (pt) |
DE (1) | DE502005006506D1 (pt) |
DK (1) | DK1891334T3 (pt) |
ES (1) | ES2318497T3 (pt) |
PL (1) | PL1891334T3 (pt) |
WO (1) | WO2006133577A1 (pt) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2607004T3 (es) | 2008-05-27 | 2017-03-28 | Weir Minerals Australia Ltd | Impulsor de bomba para lodos |
PL2233746T3 (pl) * | 2009-03-11 | 2017-03-31 | Askoll Holding S.R.L. | Odśrodkowa pompa odpływowa z wirnikiem łopatkowym do pralek i innych tego typu urządzeń gospodarstwa domowego |
CN102121479A (zh) * | 2010-01-08 | 2011-07-13 | 江苏尚宝罗泵业有限公司 | 泵 |
DE102013007849A1 (de) * | 2013-05-08 | 2014-11-13 | Ksb Aktiengesellschaft | Pumpenanordnung |
CN104564851B (zh) * | 2015-01-30 | 2017-05-17 | 上海德耐泵业有限公司 | 多相流反应器 |
CN105020184B (zh) * | 2015-07-29 | 2017-04-12 | 湖北三宁化工股份有限公司 | 气提液涡轮泵 |
US10473113B2 (en) * | 2015-12-16 | 2019-11-12 | Denso Corporation | Centrifugal blower |
JP6634929B2 (ja) * | 2015-12-16 | 2020-01-22 | 株式会社デンソー | 遠心送風機 |
WO2018014968A1 (en) * | 2016-07-22 | 2018-01-25 | Egger Pumps Technology Sa | Centrifugal pump body mountable on a tank |
RU2667251C1 (ru) * | 2017-10-05 | 2018-09-18 | Акционерное общество "Объединенная двигателестроительная корпорация" (АО "ОДК") | Коробка приводных агрегатов |
KR102334763B1 (ko) * | 2020-02-26 | 2021-12-03 | 주식회사 유니크 | 전자식 워터 펌프 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2272469A (en) * | 1939-12-23 | 1942-02-10 | Chicago Pump Co | Centrifugal pump |
US3130678A (en) * | 1961-04-28 | 1964-04-28 | William F Chenault | Centrifugal pump |
CH633617A5 (de) * | 1978-08-31 | 1982-12-15 | Martin Staehle | Kreiselpumpe mit einschaufel-laufrad zur foerderung von langfaserigen aufgeschwemmten feststoffen. |
MX157817A (es) * | 1981-12-08 | 1988-12-15 | Emule Egger & Cie S A | Mejoras a bomba rotativa de circulacion libre de fluidos |
CH660511A5 (en) * | 1982-12-22 | 1987-04-30 | Martin Staehle | Centrifugal pump having a single-blade impeller |
JPS59165891A (ja) * | 1983-03-10 | 1984-09-19 | Ebara Corp | 渦流ポンプ |
JPS63105793U (pt) * | 1986-12-26 | 1988-07-08 | ||
JPH0299294U (pt) * | 1989-01-25 | 1990-08-07 | ||
US4981413A (en) * | 1989-04-27 | 1991-01-01 | Ahlstrom Corporation | Pump for and method of separating gas from a fluid to be pumped |
US5104541A (en) * | 1990-05-10 | 1992-04-14 | Daniel William H | Oil-water separator |
GB2337795A (en) * | 1998-05-27 | 1999-12-01 | Ebara Corp | An impeller with splitter blades |
CN2360609Y (zh) * | 1998-12-02 | 2000-01-26 | 亚瑞亚·勃朗勃威力有限公司 | 用于高速涡轮的压气机叶轮固定装置 |
FI111023B (fi) * | 1998-12-30 | 2003-05-15 | Sulzer Pumpen Ag | Menetelmä ja laite materiaalin pumppaamiseksi sekä laitteen yhteydessä käytettävä roottori |
JP2000240584A (ja) * | 1999-02-18 | 2000-09-05 | Ebara Corp | ボルテックスポンプ |
US20040234370A1 (en) * | 2002-09-26 | 2004-11-25 | Mark Simakaski | Chopping pump impeller assembly |
US7037069B2 (en) | 2003-10-31 | 2006-05-02 | The Gorman-Rupp Co. | Impeller and wear plate |
-
2005
- 2005-06-16 US US11/917,440 patent/US8025478B2/en not_active Expired - Fee Related
- 2005-06-16 ES ES05750409T patent/ES2318497T3/es active Active
- 2005-06-16 CN CN2005800501150A patent/CN101208521B/zh active Active
- 2005-06-16 DE DE502005006506T patent/DE502005006506D1/de active Active
- 2005-06-16 JP JP2008516097A patent/JP5384103B2/ja active Active
- 2005-06-16 WO PCT/CH2005/000337 patent/WO2006133577A1/de active Application Filing
- 2005-06-16 EP EP05750409A patent/EP1891334B9/de active Active
- 2005-06-16 PL PL05750409T patent/PL1891334T3/pl unknown
- 2005-06-16 DK DK05750409T patent/DK1891334T3/da active
- 2005-06-16 AT AT05750409T patent/ATE421043T1/de active
- 2005-06-16 CA CA2611141A patent/CA2611141C/en active Active
- 2005-06-16 BR BRPI0520297-3A patent/BRPI0520297B1/pt not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US8025478B2 (en) | 2011-09-27 |
EP1891334A1 (de) | 2008-02-27 |
CN101208521A (zh) | 2008-06-25 |
US20090324402A1 (en) | 2009-12-31 |
CA2611141A1 (en) | 2006-12-21 |
WO2006133577A1 (de) | 2006-12-21 |
JP5384103B2 (ja) | 2014-01-08 |
BRPI0520297B1 (pt) | 2018-06-26 |
BRPI0520297A2 (pt) | 2009-04-28 |
PL1891334T3 (pl) | 2009-07-31 |
CA2611141C (en) | 2013-01-22 |
JP2008544132A (ja) | 2008-12-04 |
ES2318497T3 (es) | 2009-05-01 |
ATE421043T1 (de) | 2009-01-15 |
EP1891334B1 (de) | 2009-01-14 |
DE502005006506D1 (de) | 2009-03-05 |
CN101208521B (zh) | 2011-08-31 |
DK1891334T3 (da) | 2009-05-11 |
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