WO2008003409A1 - Teichpumpe - Google Patents
Teichpumpe Download PDFInfo
- Publication number
- WO2008003409A1 WO2008003409A1 PCT/EP2007/005550 EP2007005550W WO2008003409A1 WO 2008003409 A1 WO2008003409 A1 WO 2008003409A1 EP 2007005550 W EP2007005550 W EP 2007005550W WO 2008003409 A1 WO2008003409 A1 WO 2008003409A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- impeller
- pump according
- axis
- pond pump
- rotation
- Prior art date
Links
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
- F04D29/08—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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2238—Special flow patterns
- F04D29/2255—Special flow patterns flow-channels with a special cross-section contour, e.g. ejecting, throttling or diffusing effect
Definitions
- the invention relates to a pond pump with impeller rotating in a pump housing about an axis of rotation, wherein the pump housing has a suction inlet arranged axially to the impeller, a pressure outlet for the water to be conveyed radially to tangentially to the impeller and a housing section between the suction inlet and the pressure outlet, wherein the impeller a radially arranged circular disc with wings arranged on one side and wherein the housing portion of the associated with the wings open side of the impeller assigned and formed as a flat mating plate and wherein between the wings, the circular disk and the mating disk flow channels are formed.
- Such a pump is known from US 5,71 3,71 9 as a centrifugal or centrifugal pump with an open impeller.
- the impeller has impeller vanes. Between the pump impeller blades, a circular disk carrying the impeller blades and a housing portion, flow channels are formed. These flow channels increase in their cross section from the radial inside to the outside.
- centrifugal pump with a free-flow impeller in which flow channels between complete pump blades, which extend from the axis of rotation of the impeller to the radial periphery, and short pump blades, which are arranged in the outer ring portion of the impeller, are formed , These flow channels also increase from the inside to the outside in their cross-section.
- a centrifugal pump with a special geometry of the spiral housing in which a closed impeller with first and second cover plate is provided with flow channels arranged therebetween.
- centrifugal pumps are generally known in the art, which have a rotating impeller for the promotion of water.
- the pumps are usually immersed in the water to be pumped (submersible) used.
- a pipe for sucking the water to be pumped can be arranged on the suction side.
- the pump For dry installation, the pump must be placed next to the pond below the water level.
- the pumped water is conveyed via a pipeline, for example, to a pond filter, a fountain, an applied watercourse or the like.
- Centrifugal pumps operate on a hydrodynamic delivery principle, wherein the water to be conveyed fed near the axis of rotation of the impeller, entrained by the rotating impeller with its wings arranged thereon and forced to a circular path. Due to the centrifugal force of the rotating water on the circular path, the water is forced radially outward. Accordingly, near the axis of rotation at the water supply, a negative pressure (suction side) and at the periphery of the impeller creates an overpressure (pressure side).
- Centrifugal pumps are very reliable and can be used in electrically fully encapsulated design as submersible pumps, for example, for swimming ponds. Furthermore, with appropriate design of the impeller and associated pump housing water can be promoted with solids, without the blockages are to be feared.
- the impeller is designed as a so-called free-flow impeller, so that the permissible solids size, for example, 6 mm (ball passage) can amount. Thus restrict only on the suction side coarse filter elements with a corresponding mesh size, the flow rate.
- the object of the invention is therefore to optimize a generic centrifugal pump accordingly.
- centrifugal pump according to claim 1.
- an open-rotor centrifugal pump has an improved efficiency when flow channels formed between the vanes have a cross-section which decreases in the flow direction from the radial inside to the outside.
- the cross-sectional constriction in the flow channels in the radial direction from the axis of rotation to the outside causes an increase in the centrifugal forces and thus in the hydrodynamic delivery pressure.
- the reduction of the flow channel cross section 1 is 5% to 40%, preferably 20% to 35%.
- Impeller can be a flow channel cross-section reduction preferably realized in that the mating plate in the form of a wide open Conical shell portion is formed at an angle ( ⁇ ) between 5 ° and 20 ° to the rotational axis aligned with the radial plane in the direction of the impeller.
- the flow channel cross-section reduction is achieved in that the circular disc of the impeller in the form of a wide open cone shell with an angle (ß) between 5 ° and 20 ° to the rotational axis aligned radial plane in the direction of the mating plate is formed.
- the efficiency of the pond pump is increased when the measured axially to the rotational axis height of the blades of the impeller decreases from the radially inner side to the outer side, so that the open side of the impeller is arranged with a substantially uniform gap distance from the mating plate. If the gap dimension is less than or equal to 1 mm, preferably less than 0.5 mm, pressure losses due to short-circuit flows between the impeller and the counter-rotating plate are reliably avoided.
- the height of the wings on the radial outer side is greater than or equal to the width of the flow channels.
- the width of the flow channels should be greater than or equal to the max. allowable grain size, for example, greater than or equal to 6 mm, be formed. If the wings have a crescent-shaped cross-section in the radial direction to the axis of rotation, a hydrodynamically particularly effective flow channel geometry is formed between the crescent-shaped vanes. Due to the crescent-shaped cross section, the wings have a high intrinsic stability, so that the impeller has a long service life.
- the mating plate is an integral part of the pump housing.
- the pump housing and / or the impeller are preferably produced from acrylonitrile-butadiene-styrene (ABS), modified polyphenylene oxide (PPO) and / or polyoxymethylene / polyacetal (POM)
- ABS acrylonitrile-butadiene-styrene
- PPO modified polyphenylene oxide
- POM polyoxymethylene / polyacetal
- the impeller can be made of ABS plastic in sufficient dimensional stability and strength as a low-cost component or for particularly heavy loads of PPO or POM plastic.
- an asynchronous motor with stainless steel can in a housing provided in which a sealed encased in stainless steel rotor is mounted, which forms a removable from the housing running unit with the impeller.
- the running unit is rotatably mounted in a ceramic bearing in the housing.
- Fig. 1 shows a pump according to the invention in a sectional view through an axial plane
- a pond pump with a pump housing 1 and a rotating about a rotation axis X impeller 2 is shown in a sectional view through an axial plane.
- a drive unit consisting of an electric motor arranged in a housing, preferably an asynchronous motor, can be attached to the side represented by arrow Y.
- electromotive rotary drive the impeller 2 is driven to rotate about the rotation axis X.
- the pump housing 1 has a suction inlet 1 1, which is the drive side Y arranged opposite coaxial with the axis of rotation X. At the suction inlet 1 1, a nozzle is formed, on which a suction line for supplying water to be conveyed can be placed. When using the pump as a submersible pump, the water can also be fed directly into the suction inlet 1 1. The water flow on the suction side is indicated by arrow Ws.
- the pump housing 1 together with the drive unit Y, not shown, a housing of the rotary-driven impeller 2 to cause upon rotation of the impeller 2, a hydrodynamic promotion of the water.
- the enclosure of the pump housing 1 to the periphery of the impeller 2 an annular plenum 1 3, of which a substantially tangential to the impeller 2 arranged pressure outlet 14 in the direction of accelerated by the rotating impeller 2 on a circular path water from the pump housing in the direction Water drainage where led out.
- a mating plate 1 2 is formed between the axially arranged to the axis of rotation X suction inlet 1 1 and the peripheral impeller 2 torus-shaped collecting chamber 13, a mating plate 1 2 is formed.
- the mating plate 1 2 forms an annular surface, which is formed inclined in the embodiment shown in Figure 1 as a wide open conical surface portion with an angle ⁇ of about 10 ° to the radial plane in the radial direction and the drive side Y.
- the impeller 2 has an aligned in a radial plane to the rotation axis X circular disc 22, are formed on the axially projecting in the direction of the suction side wings 21.
- the impeller 2 is shown in a plan view from the direction of the suction side Ws (see FIG. 1).
- the impeller 2 shown in Figure 2 has eight in its cross section in the radial axis X to the rotation axis of the sickle-shaped wings 21. Between the vanes 21, eight flow channels 23 are formed, which have a substantially constant width b of, for example, 6 mm between adjacent vanes 21, 21.
- a central bore 24 is provided with integrally formed shaft 25 on the impeller 2.
- the open side of the impeller 2 is located directly opposite the counter-rotating plate 1 2 of the pump housing 1. Accordingly, the freely projecting ends of the wings 21 of the angled ⁇ by the angle mating plate 1 2 adapted so that between the free upper edge of the wings 21 and the mating plate 1 2 a substantially uniform gap s, for example, 0.5 mm results.
- the impeller 2 rotates about the axis of rotation X.
- the impeller 2 is driven by a drive unit Y, not shown. Due to the rotational movement of the impeller 2 with the wings 21 formed thereon, water protruding on the suction side Ws is generated due to a central part of the impeller 2
- the small gap s of about 0.5 mm reliably prevents a flow short circuit, so that the pump works very effectively.
- the formation of the flow channels 23 with a substantially constant width b equal to 6 mm allows a blockage-free promotion of laden with solid particles up to a particle size of 6 mm water through the pump. Since the height h of the wings 21 at the peripheral outlet of the flow channels 23 at least equal to the width b, so b is less than or equal to h, clogging of the flow channels is also avoided with respect to the height dimensioning.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/307,377 US8182214B2 (en) | 2006-07-04 | 2007-06-23 | Pond pump |
EA200900134A EA014206B1 (ru) | 2006-07-04 | 2007-06-23 | Прудовой насос |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06013788.2 | 2006-07-04 | ||
EP06013788A EP1876359B1 (de) | 2006-07-04 | 2006-07-04 | Teichpumpe |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2008003409A1 true WO2008003409A1 (de) | 2008-01-10 |
Family
ID=37324098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2007/005550 WO2008003409A1 (de) | 2006-07-04 | 2007-06-23 | Teichpumpe |
Country Status (9)
Country | Link |
---|---|
US (1) | US8182214B2 (de) |
EP (1) | EP1876359B1 (de) |
CN (2) | CN102251987A (de) |
AT (1) | ATE434135T1 (de) |
DE (1) | DE502006004005D1 (de) |
DK (1) | DK1876359T3 (de) |
EA (1) | EA014206B1 (de) |
ES (1) | ES2327056T3 (de) |
WO (1) | WO2008003409A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009096226A1 (ja) * | 2008-01-31 | 2009-08-06 | National University Corporation Yokohama National University | 流体機械 |
US8975329B2 (en) | 2011-12-02 | 2015-03-10 | Sabic Global Technologies B.V. | Poly(phenylene ether) articles and compositions |
US9057353B2 (en) * | 2013-03-15 | 2015-06-16 | Michael S. Aubuchon, Sr. | Shaft-less radial vane turbine generator |
US10677258B2 (en) * | 2017-01-19 | 2020-06-09 | Nidec Corporation | Blower comprising impeller and motor |
EP3511376A1 (de) | 2018-01-10 | 2019-07-17 | SABIC Global Technologies B.V. | Polyphenylenetherzusammensetzung, verfahren zu deren herstellung und artikel mit der zusammensetzung |
CA3048275A1 (en) * | 2019-06-28 | 2020-12-28 | Nicholas James GUENTHER | Inducer for a submersible pump for pumping a pumping media containing solids and viscous fluids and method of manufacturing same |
CN113090535B (zh) * | 2021-04-25 | 2022-09-27 | 中国科学院上海应用物理研究所 | 一种高温介质泵抗颗粒渣浆水力装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0473359A1 (de) * | 1990-08-29 | 1992-03-04 | Concentric Pumps Limited | Kühlmittelpumpe |
WO1994003731A1 (en) * | 1992-07-30 | 1994-02-17 | Spin Corporation | Centrifugal blood pump |
US5713719A (en) * | 1995-12-08 | 1998-02-03 | Caterpillar Inc. | Self flushing centrifugal pump |
DE10064721C1 (de) * | 2000-12-22 | 2002-05-02 | Webasto Thermosysteme Gmbh | Fahrzeugheizgerät mit integrierter Wärmeträger-Umwälzpumpe |
US20040126228A1 (en) * | 2002-12-31 | 2004-07-01 | Roudnev Aleksander S. | Centrifugal pump with configured volute |
EP1441130A2 (de) * | 2003-01-23 | 2004-07-28 | Viesse Pompe S.r.l. | Modulares Pumpengehäuse |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB575346A (en) | 1944-03-01 | 1946-02-14 | Aluminium Plant & Vessel Co | Improvements in or relating to centrifugal pumps |
US3867655A (en) * | 1973-11-21 | 1975-02-18 | Entropy Ltd | Shaftless energy conversion device |
US4253798A (en) * | 1978-08-08 | 1981-03-03 | Eiichi Sugiura | Centrifugal pump |
US6659744B1 (en) * | 2001-04-17 | 2003-12-09 | Charles Dow Raymond, Jr. | Rotary two axis expansible chamber pump with pivotal link |
CN1265099C (zh) | 2004-05-19 | 2006-07-19 | 江苏大学 | 一种低比转数离心泵叶轮设计方法 |
-
2006
- 2006-07-04 DK DK06013788T patent/DK1876359T3/da active
- 2006-07-04 AT AT06013788T patent/ATE434135T1/de active
- 2006-07-04 DE DE502006004005T patent/DE502006004005D1/de active Active
- 2006-07-04 ES ES06013788T patent/ES2327056T3/es active Active
- 2006-07-04 EP EP06013788A patent/EP1876359B1/de not_active Not-in-force
-
2007
- 2007-06-23 EA EA200900134A patent/EA014206B1/ru not_active IP Right Cessation
- 2007-06-23 CN CN2011101264395A patent/CN102251987A/zh active Pending
- 2007-06-23 CN CNA2007800248363A patent/CN101484708A/zh active Pending
- 2007-06-23 US US12/307,377 patent/US8182214B2/en not_active Expired - Fee Related
- 2007-06-23 WO PCT/EP2007/005550 patent/WO2008003409A1/de active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0473359A1 (de) * | 1990-08-29 | 1992-03-04 | Concentric Pumps Limited | Kühlmittelpumpe |
WO1994003731A1 (en) * | 1992-07-30 | 1994-02-17 | Spin Corporation | Centrifugal blood pump |
US5713719A (en) * | 1995-12-08 | 1998-02-03 | Caterpillar Inc. | Self flushing centrifugal pump |
DE10064721C1 (de) * | 2000-12-22 | 2002-05-02 | Webasto Thermosysteme Gmbh | Fahrzeugheizgerät mit integrierter Wärmeträger-Umwälzpumpe |
US20040126228A1 (en) * | 2002-12-31 | 2004-07-01 | Roudnev Aleksander S. | Centrifugal pump with configured volute |
EP1441130A2 (de) * | 2003-01-23 | 2004-07-28 | Viesse Pompe S.r.l. | Modulares Pumpengehäuse |
Also Published As
Publication number | Publication date |
---|---|
EA014206B1 (ru) | 2010-10-29 |
US8182214B2 (en) | 2012-05-22 |
CN101484708A (zh) | 2009-07-15 |
EA200900134A1 (ru) | 2009-04-28 |
US20090304501A1 (en) | 2009-12-10 |
EP1876359A1 (de) | 2008-01-09 |
CN102251987A (zh) | 2011-11-23 |
ATE434135T1 (de) | 2009-07-15 |
ES2327056T3 (es) | 2009-10-23 |
EP1876359B1 (de) | 2009-06-17 |
DK1876359T3 (da) | 2009-09-21 |
DE502006004005D1 (de) | 2009-07-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2008003409A1 (de) | Teichpumpe | |
EP2622225B1 (de) | Zentrifugalpumpe | |
DE602004006301T2 (de) | Zentrifugalpumpe | |
DE69106631T2 (de) | Drehpumpe. | |
JPS6354151B2 (de) | ||
DE102009006652B4 (de) | Seitenkanalgebläse, insbesondere Sekundärluftgebläse für eine Verbrennungskraftmaschine | |
EP2226505B1 (de) | Freistromrad mit Schneidkanten | |
EP2646693B1 (de) | Kühlmittelpumpe | |
DE4335686B4 (de) | Gebläse | |
EP2740942A2 (de) | Medizinisches oder dentales Gebläse | |
EP0653564B1 (de) | Verstopfungsfreie Kreiselpumpe | |
EP2783073B1 (de) | Flüssigkeitsring-vakuumpumpe und flügelrad dafür | |
EP3662164A1 (de) | Laufrad für abwasserpumpe | |
EP3559475B1 (de) | Freistrompumpe | |
DE4239071C2 (de) | Tauchpumpenaggregat | |
WO2019110659A1 (de) | Laufrad für abwasserpumpe | |
DE1528682B2 (de) | Kreiselpumpenbausatz | |
DE197769C (de) | ||
CN211692863U (zh) | 一种叶轮组件及其高速深井泵 | |
DE3029507A1 (de) | Seitenkanalgeblaese | |
DE69107330T2 (de) | Geräuscharme Kreiselmotorpumpe für Flüssigkeiten. | |
DE102010015048B4 (de) | Kreiselpumpe mit integrierter Teilstromfiltration | |
DE69407257T2 (de) | Gehäuse für eine Rotationspumpe | |
DE2349027A1 (de) | Zentrifugalabscheider | |
CH409639A (de) | Kreiselpumpe |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200780024836.3 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07764805 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12307377 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
NENP | Non-entry into the national phase |
Ref country code: RU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200900134 Country of ref document: EA |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 07764805 Country of ref document: EP Kind code of ref document: A1 |