EP2503156A1 - Laufrad für eine Kreiselpumpe - Google Patents

Laufrad für eine Kreiselpumpe Download PDF

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Publication number
EP2503156A1
EP2503156A1 EP11002276A EP11002276A EP2503156A1 EP 2503156 A1 EP2503156 A1 EP 2503156A1 EP 11002276 A EP11002276 A EP 11002276A EP 11002276 A EP11002276 A EP 11002276A EP 2503156 A1 EP2503156 A1 EP 2503156A1
Authority
EP
European Patent Office
Prior art keywords
rotor
shield diameter
diameter
frontal
blades
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.)
Withdrawn
Application number
EP11002276A
Other languages
English (en)
French (fr)
Inventor
Wojciech Plutecki
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.)
Hydro-Vacuum SA
Original Assignee
Hydro-Vacuum SA
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 Hydro-Vacuum SA filed Critical Hydro-Vacuum SA
Priority to EP11002276A priority Critical patent/EP2503156A1/de
Publication of EP2503156A1 publication Critical patent/EP2503156A1/de
Withdrawn legal-status Critical Current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
    • F04D29/18—Rotors
    • F04D29/22—Rotors specially for centrifugal pumps
    • F04D29/2205—Conventional flow pattern
    • F04D29/2216—Shape, geometry

Definitions

  • the subject of invention is a rotor of impeller pump, especially centrifugal or screw pump with blades of spatial curvature.
  • a typical rotor of centrifugal pump generally consists of a hub and frontal as well as rear shield mounted on it, joined with blades forming internal discharge channels.
  • the number of blades in rotors is from two to mostly eight or ten pieces, depending on demanded capacity and delivery head.
  • centrifugal rotors with blades of two-dimensional curvature there are used centrifugal rotors with blades of two-dimensional curvature, whereas frontal and rear shields have an equal diameter.
  • centrifugal rotors with blades of spatial curvature and the rear shield diameter is equal or smaller than the frontal shield diameter, whereas outlet blade edges are a straight parallel line or a line diagonal to an axis of rotation, joining shield edges in order to get a diagonal direction of liquid flow to a stator inserting liquid to the next stage of pumping.
  • a rotor type and diameter as well as in less degree a body diameter determines two nominal pump parameters - its capacity (m3/s) and delivery head (m).
  • a smaller rotor diameter of impeller pump means less power consumption from a drive shaft as a result of less liquid friction losses on frontal and rear rotor shields as well as smaller surface of blades transferring the momentum moment to the flowing liquid and it causes a smaller delivery head.
  • the solution point of rotor, in which out let blade edges are parallel on its all length to the axis of rotor rotation, is that the rear shield diameter is from 0.99 to 0.70 of the frontal shield diameter.
  • the solution point of rotor, in which outlet blade edges are on its all length directed askew to the axis of rotor rotation, is that the rear shield diameter is from 0.99 to 0.70 of the frontal shield diameter and outlet blade edges have got skips to be a1 wide, being from 0.01 to 0.9 of rotor discharge channel width, however its height a2 is from 0.01 to 0.5 of its width.
  • fig. 1 shows a rotor in an end view in the form of work, in which outlet blade edges are parallel on its all length to the axis of rotor rotation
  • fig. 2 shows a rotor in a perspective view, in which outlet blade edges are parallel on its all length to the axis of rotor rotation
  • fig. 3 shows a rotor in an end view, in which outlet blade edges are on its all length directed askew to the axis of rotor rotation
  • fig. 4 shows a perspective view of rotor, in which outlet blade edges are on its all length directed askew to the axis of rotor rotation.
  • FIG. 5 shows a graph of rotor work parameters according to the invention, in which outlet blade edges are parallel on its all length to the axis of rotor rotation and in which the rear shield diameter is 0.96 of the frontal shield diameter, in comparison with the work of standard rotor.
  • fig. 6 shows a graph of rotor work parameters according to the invention, in which the rear shield diameter is 0.86 of the frontal shield diameter and a1 skip width is 0.4 of discharge channel width, and its height makes up 0.2 of its width.
  • a rotor of impeller pump has got a hub (1), a front a1 shield ( 2 ), a rear shield ( 3 ) joined with blades (4) of outlet edges ( 5 ) parallel to the axis of rotor rotation and having got a skip ( 6 ).

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP11002276A 2011-03-20 2011-03-20 Laufrad für eine Kreiselpumpe Withdrawn EP2503156A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11002276A EP2503156A1 (de) 2011-03-20 2011-03-20 Laufrad für eine Kreiselpumpe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11002276A EP2503156A1 (de) 2011-03-20 2011-03-20 Laufrad für eine Kreiselpumpe

Publications (1)

Publication Number Publication Date
EP2503156A1 true EP2503156A1 (de) 2012-09-26

Family

ID=45444339

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11002276A Withdrawn EP2503156A1 (de) 2011-03-20 2011-03-20 Laufrad für eine Kreiselpumpe

Country Status (1)

Country Link
EP (1) EP2503156A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105508292A (zh) * 2015-12-17 2016-04-20 江苏国泉泵业制造有限公司 一种半开式旋流泵叶轮结构设计方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5216009A (en) * 1975-07-29 1977-02-07 Shinko Kikai Seisakusho:Kk Centrifugal fan
US4886417A (en) * 1988-12-06 1989-12-12 Sundstrand Corporation Fuel pump and radial-flow impeller therefor
JP2001003888A (ja) * 1999-06-22 2001-01-09 Teral Kyokuto Inc 深井戸用水中モータポンプの羽根車
US6481961B1 (en) * 2001-07-02 2002-11-19 Sea Chung Electric Co., Ltd. Stage for a centrifugal submersible pump
JP2009167990A (ja) * 2008-01-21 2009-07-30 Mitsubishi Heavy Ind Ltd 遠心ポンプ
US20090280013A1 (en) * 2008-05-06 2009-11-12 Minel Kupferberg Frustoconical centrifugal wheel
WO2011089512A2 (en) * 2010-01-22 2011-07-28 Itt Manufacturing Enterprises, Inc. Centrifugal pump

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5216009A (en) * 1975-07-29 1977-02-07 Shinko Kikai Seisakusho:Kk Centrifugal fan
US4886417A (en) * 1988-12-06 1989-12-12 Sundstrand Corporation Fuel pump and radial-flow impeller therefor
JP2001003888A (ja) * 1999-06-22 2001-01-09 Teral Kyokuto Inc 深井戸用水中モータポンプの羽根車
US6481961B1 (en) * 2001-07-02 2002-11-19 Sea Chung Electric Co., Ltd. Stage for a centrifugal submersible pump
JP2009167990A (ja) * 2008-01-21 2009-07-30 Mitsubishi Heavy Ind Ltd 遠心ポンプ
US20090280013A1 (en) * 2008-05-06 2009-11-12 Minel Kupferberg Frustoconical centrifugal wheel
WO2011089512A2 (en) * 2010-01-22 2011-07-28 Itt Manufacturing Enterprises, Inc. Centrifugal pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105508292A (zh) * 2015-12-17 2016-04-20 江苏国泉泵业制造有限公司 一种半开式旋流泵叶轮结构设计方法

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