EP0191310A1 - Pompe à impulseur - Google Patents

Pompe à impulseur Download PDF

Info

Publication number
EP0191310A1
EP0191310A1 EP86100525A EP86100525A EP0191310A1 EP 0191310 A1 EP0191310 A1 EP 0191310A1 EP 86100525 A EP86100525 A EP 86100525A EP 86100525 A EP86100525 A EP 86100525A EP 0191310 A1 EP0191310 A1 EP 0191310A1
Authority
EP
European Patent Office
Prior art keywords
wheel
blades
propeller
guide
adjustable
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Withdrawn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
EP86100525A
Other languages
German (de)
English (en)
Inventor
Erich Dr. Holzhüter
Joerg Dr. Starke
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.)
Klein Schanzlin and Becker AG
Original Assignee
Klein Schanzlin and Becker 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 Klein Schanzlin and Becker AG filed Critical Klein Schanzlin and Becker AG
Publication of EP0191310A1 publication Critical patent/EP0191310A1/fr
Withdrawn legal-status Critical Current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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/56—Fluid-guiding means, e.g. diffusers adjustable
    • F04D29/563—Fluid-guiding means, e.g. diffusers adjustable specially adapted for elastic fluid pumps

Definitions

  • the invention relates to a single-stage propeller pump according to the preamble of the main claim.
  • a propeller pump is also known, the propeller wheel of which is equipped with a leading and trailing wheel.
  • the script predominantly emphasizes the design of the blades of the propeller wheel.
  • the liquid flowing to the propeller wheel is influenced by a guide wheel with fixed or adjustable blades.
  • a corresponding adjustment of the guide vanes is also carried out by a single adjustment of the guide vanes.
  • the invention is based on the object, in the case of single-stage propeller pumps, in contrast to the known not only for one design point, but for all operating points lying outside the characteristic line passing through the design point, ie. H. to achieve the best possible efficiency within an adjustment map.
  • the setting of the blades relative to one another in accordance with the operating conditions and depending on the propeller wheel can be carried out manually, mechanically and / or electronically, according to predetermined values.
  • One embodiment of the invention provides that the coupled adjustment of blades and / or blade parts takes place with only one measured variable of an operating point as an input variable for a control device.
  • the flow rate or the head can be used. Since the characteristic curves of the characteristic diagram of the respective propeller pump are entered as known values in the control device, only one measured value characterizing the operating point is sufficient for optimal adjustment or adjustment.
  • Another embodiment of the invention provides that the blades of the guide vane and the guide vane are designed as articulated blades and the blade parts facing the propeller wheel are adjustable. With this solution, a largely undisturbed and vortex-free inflow to the propeller wheel is achieved. Through the articulated wing of the guide wheel, both a smooth entry of the flow into the guide wheel and a swirl-free exit of the flow from the guide wheel are achieved in a simple manner.
  • a further embodiment of the invention provides that the adjustable blade parts of the guide vanes are offset by one or an angular degree with respect to the direction of rotation of the propeller wheel relative to the several fixed blade parts.
  • the staggered vane parts create the well-known splitting vane effect, the effect of which makes a more advantageous flow deflection possible with this highly loaded retardation vane grille. This ensures a further improvement in efficiency.
  • the vane grille of a propeller pump designed according to the invention which corresponds to a central cylindrical section of the flow cross section.
  • the medium to be conveyed axially enters the guide vane 1.
  • the blades 2 of the guide vane 1 are formed here in two parts, in such a way that the blade part 4 located downstream and facing the propeller wheel 3 is adjustable.
  • the medium to be conveyed leaves the guide vane 1 in co-rotation, ie with a peripheral component in the direction of rotation.
  • the propeller wheel 3 is thus flowed at at a relatively lower relative speed than a swirl-free inflow.
  • the relative outflow angle of the impeller grille is almost retained, so that the guide wheel 5 is flown against with an inlet angle which is significantly smaller than that of a pre-swirl-free inflow.
  • the blade part 6 of the guide vanes 7 is adjusted to this flow angle.
  • the fixed part 8 of the guide vanes 7 has a shape which largely ensures a swirl-free exit of the conveyed medium.
  • the blades used here can be used both as articulated blades or as blades with a flexible adjustable or adjustable blade part.
  • the adjustable inlet blade part 6 is offset from the fixed blade part 8 by a few angular degrees in relation to the direction of rotation.
  • the gap 9 thus formed advantageously reduces the energy losses of the guide wheel.
  • the blades shown on the right in the drawing show a possible embodiment with a streamlined design.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP86100525A 1985-02-15 1986-01-16 Pompe à impulseur Withdrawn EP0191310A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3505162 1985-02-15
DE19853505162 DE3505162A1 (de) 1985-02-15 1985-02-15 Propellerpumpe

Publications (1)

Publication Number Publication Date
EP0191310A1 true EP0191310A1 (fr) 1986-08-20

Family

ID=6262574

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100525A Withdrawn EP0191310A1 (fr) 1985-02-15 1986-01-16 Pompe à impulseur

Country Status (2)

Country Link
EP (1) EP0191310A1 (fr)
DE (1) DE3505162A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1167771A2 (fr) * 2000-06-21 2002-01-02 Turbo Lufttechnik GmbH Ventilateur axial réversible
CN100340774C (zh) * 2005-05-12 2007-10-03 西安交通大学 具有两列平行于来流导叶的单叶轮完全可反风轴流风机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB671607A (en) * 1950-05-05 1952-05-07 Davidson & Co Ltd Improvements in or relating to multi-stage fans, pumps and the like
GB702312A (en) * 1952-05-27 1954-01-13 Davidson & Co Ltd Improvements in or relating to axial flow fans and the like
CH318567A (de) * 1953-05-23 1957-01-15 Rolls Royce Mehrstufiger Axialströmungskompressor
FR1587843A (fr) * 1968-10-15 1970-03-27
DE2607159A1 (de) * 1976-02-21 1977-08-25 Voith Getriebe Kg Axialventilator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE471149C (de) * 1925-12-24 1929-02-12 Gill Propeller Company Ltd Hydraulische Maschine mit axialem Durchfluss
GB723798A (en) * 1951-02-26 1955-02-09 Voith Gmbh J M Improvements in axial-flow turbines or pumps

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB671607A (en) * 1950-05-05 1952-05-07 Davidson & Co Ltd Improvements in or relating to multi-stage fans, pumps and the like
GB702312A (en) * 1952-05-27 1954-01-13 Davidson & Co Ltd Improvements in or relating to axial flow fans and the like
CH318567A (de) * 1953-05-23 1957-01-15 Rolls Royce Mehrstufiger Axialströmungskompressor
FR1587843A (fr) * 1968-10-15 1970-03-27
DE2607159A1 (de) * 1976-02-21 1977-08-25 Voith Getriebe Kg Axialventilator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1167771A2 (fr) * 2000-06-21 2002-01-02 Turbo Lufttechnik GmbH Ventilateur axial réversible
EP1167771A3 (fr) * 2000-06-21 2003-02-05 Turbo Lufttechnik GmbH Ventilateur axial réversible
CN100340774C (zh) * 2005-05-12 2007-10-03 西安交通大学 具有两列平行于来流导叶的单叶轮完全可反风轴流风机

Also Published As

Publication number Publication date
DE3505162C2 (fr) 1987-10-22
DE3505162A1 (de) 1986-09-04

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Withdrawal date: 19861218

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Inventor name: HOLZHUETER, ERICH, DR.

Inventor name: STARKE, JOERG, DR.