MXPA05002888A - Surface aeration impellers. - Google Patents

Surface aeration impellers.

Info

Publication number
MXPA05002888A
MXPA05002888A MXPA05002888A MXPA05002888A MXPA05002888A MX PA05002888 A MXPA05002888 A MX PA05002888A MX PA05002888 A MXPA05002888 A MX PA05002888A MX PA05002888 A MXPA05002888 A MX PA05002888A MX PA05002888 A MXPA05002888 A MX PA05002888A
Authority
MX
Mexico
Prior art keywords
impeller
liquid
blades
disc
vertical
Prior art date
Application number
MXPA05002888A
Other languages
Spanish (es)
Inventor
John R Mcwhirter
Original Assignee
Penn State Res Found
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 Penn State Res Found filed Critical Penn State Res Found
Priority claimed from PCT/US2002/029280 external-priority patent/WO2004025125A2/en
Publication of MXPA05002888A publication Critical patent/MXPA05002888A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/18Rotors
    • F04D29/22Rotors specially for centrifugal pumps
    • F04D29/2261Rotors specially for centrifugal pumps with special measures
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20Mixing gases with liquids
    • B01F23/23Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/234Surface aerating
    • B01F23/2342Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force
    • B01F23/23421Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force the stirrers rotating about a vertical axis
    • B01F23/234211Stirrers thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Accessories For Mixers (AREA)

Abstract

A surface aeration impeller for use in a liquid filled tank. The impeller is rotatable about an axis perpendicular to the static liquid surface. The impeller has a plurality of blades mounted on the underside of a disc or disc-like surface. Each blade has a multi-faceted or curved geometry ranging from vertical at the point of attachment to the disc to partially inclined at the bottom. The blades are spaced circumferentially about the axis and are disposed at acute angles to radial lines from the axis of rotation of the impeller. The lower portions of the blades, which are inclined but non-vertical, are positioned at or below the static liquid surface. When the impeller is rotated, the lower portion pumps the liquid up onto the vertical portion of the blades where the liquid is discharged into a spray umbrella in a direction upwardly and outwardly away from the impeller. The design of the invention produces substantially higher oxygen transfer efficiency and overall liquid pumping rates than prior art designs and is particularly useful in the aeration of sewage and other wastewater.
MXPA05002888A 2002-09-16 2002-09-16 Surface aeration impellers. MXPA05002888A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2002/029280 WO2004025125A2 (en) 1998-09-28 2002-09-16 Surface aeration impellers

Publications (1)

Publication Number Publication Date
MXPA05002888A true MXPA05002888A (en) 2005-10-05

Family

ID=34374683

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA05002888A MXPA05002888A (en) 2002-09-16 2002-09-16 Surface aeration impellers.

Country Status (5)

Country Link
EP (1) EP1581745A4 (en)
JP (1) JP2006503687A (en)
AU (1) AU2002365076B2 (en)
CA (1) CA2499051C (en)
MX (1) MXPA05002888A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1027600C2 (en) * 2004-11-26 2006-05-29 Andries Visser Device and method for aeration of waste water.
EP2216395A1 (en) * 2009-02-09 2010-08-11 Lonza Biologics plc. Bioreactor for the cultivation of mammalian cells
JP5704928B2 (en) * 2011-01-11 2015-04-22 株式会社環境測定サービス Water circulation device
CN102583720B (en) * 2012-02-23 2013-09-25 安徽国祯环保节能科技股份有限公司 Deep-water type down-umbrella aerator impeller
DE102013225662A1 (en) * 2013-12-11 2015-06-11 Invent Umwelt- Und Verfahrenstechnik Ag Stirring device for circulating wastewater and equipment received in a basin
JP6169207B1 (en) * 2016-02-29 2017-07-26 株式会社メデック Rotating body for stirring and stirring device
JP6908502B2 (en) * 2017-11-17 2021-07-28 新明和工業株式会社 Aeration device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3290016A (en) * 1965-01-08 1966-12-06 Nettco Corp Mixer means and impeller therefor
DE2003759A1 (en) * 1970-01-28 1971-09-23 Bamag Verfahrenstechnik Gmbh Effluent surface aeration centrifugal impeller
DE2409549A1 (en) * 1974-02-28 1975-09-11 Sotralentz Sa DEVICE FOR SPRAYING WATER INTO THE AIR
US4066383A (en) * 1976-06-18 1978-01-03 General Signal Corporation Surface aeration impeller

Also Published As

Publication number Publication date
EP1581745A2 (en) 2005-10-05
AU2002365076A1 (en) 2004-04-30
CA2499051C (en) 2010-06-01
EP1581745A4 (en) 2010-12-15
CA2499051A1 (en) 2004-03-25
JP2006503687A (en) 2006-02-02
AU2002365076B2 (en) 2008-12-18

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Legal Events

Date Code Title Description
FG Grant or registration