SE466768B - AXIAL TYPE RELEASED PUMP - Google Patents

AXIAL TYPE RELEASED PUMP

Info

Publication number
SE466768B
SE466768B SE9002898A SE9002898A SE466768B SE 466768 B SE466768 B SE 466768B SE 9002898 A SE9002898 A SE 9002898A SE 9002898 A SE9002898 A SE 9002898A SE 466768 B SE466768 B SE 466768B
Authority
SE
Sweden
Prior art keywords
pump
guide rails
pump housing
housing wall
axial type
Prior art date
Application number
SE9002898A
Other languages
Swedish (sv)
Other versions
SE9002898D0 (en
SE9002898A (en
Inventor
U Arbeus
Original Assignee
Flygt Ab Itt
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20380333&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=SE466768(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Flygt Ab Itt filed Critical Flygt Ab Itt
Priority to SE9002898A priority Critical patent/SE466768B/en
Publication of SE9002898D0 publication Critical patent/SE9002898D0/en
Priority to AT91850194T priority patent/ATE125335T1/en
Priority to EP91850194A priority patent/EP0475920B1/en
Priority to DE69111345T priority patent/DE69111345T2/en
Priority to JP3217219A priority patent/JPH0730751B2/en
Priority to AU83610/91A priority patent/AU645341B2/en
Publication of SE9002898A publication Critical patent/SE9002898A/xx
Publication of SE466768B publication Critical patent/SE466768B/en
Priority to US07/955,230 priority patent/US5221182A/en

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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/52—Casings; Connections of working fluid for axial pumps
    • F04D29/54—Fluid-guiding means, e.g. diffusers
    • F04D29/548—Specially adapted for liquid pumps
    • 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
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
    • F04D29/448—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps bladed diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/10—Stators
    • F05D2240/12—Fluid guiding means, e.g. vanes
    • F05D2240/121—Fluid guiding means, e.g. vanes related to the leading edge of a stator vane

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Glass Compositions (AREA)
  • Power Steering Mechanism (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The invention concerns a non-clogging pump of centrifugal or axial flow type. The vanes (6) of the pump housing (5) are designed with strongly back swept leading edges (7) as seen in the direction of the flow, the vanes (6) being given a bulb form in the outward direction. <IMAGE>

Description

466 768 z sättningsproblem på ett helt nytt sätt. Lösningen erhålls med hjälp av den anordning som anges i efterföljande patentkrav. 466 768 z settlement problems in a whole new way. The solution is obtained with help of the device as claimed in the appended claims.

Uppfinningen beskrivs närmare nedan under hänvisning till bifogade figurer, vilka visar ett axiellt respektive ettzmerediansnitt genom en axialpump.The invention is described in more detail below with reference to the accompanying figures, which show an axial and a meridian section, respectively, through an axial pump.

I figurerna betecknar 1 ett hjulnav försett med skovlar 2. 3 be- tecknar en motorenhet, 4 en annulär kanal, 5 pumphusvägg och 6 ledskenor med framkanter 7 och bulb 8.In the figures, 1 denotes a wheel hub provided with vanes 2. 3 draws a motor unit, 4 an annular duct, 5 pump housing wall and 6 guide rails with front edges 7 and bulb 8.

Pumpen arbetar på följande sätt: De roterande hjulskovlarna 2 suger upp vätskan genom ringkanalen 4. Sedan vätskan passerat skovlarna omlänkas den.med hjälp av ledskenorna 6 för åstadkommande av tryck- energi.The pump works as follows: The rotating wheel vanes 2 suck up the liquid through the ring channel 4. After the liquid has passed the vanes it is redirected by means of the guide rails 6 to provide pressure energy.

För att minska risken för att fibrer och liknande föremål skall fastna på ledskenans framkant 7, utformas denna starkt bakåtsvept i strömningsriktningen så att fibrerna. halkar utåt mot pump- husväggen 5 där vätskehastigheten är störst. Vidare utformas led- skenan bulbformad 8 med ökande tjocklek i riktning ut mot pump- husväggen och avsmalnande mot skovelns bakkant. På detta sätt halkar fibrerna lätt över skovelkanten och denna förtjockning stör endast obetydligt strömningen i övrigt. För att material i vätskan ej skall fastna i övergången mellan skovelframkant 7 och pump- husvägg 5, utformas anslutningen med en radie som ger en mjuk övergång utan skarpa veck.To reduce the risk of fibers and similar objects attached to the leading edge 7 of the guide rail, this is strongly retracted in the direction of flow so that the fibers. slips outwards towards the pump the house wall 5 where the liquid velocity is greatest. Furthermore, the the rail bulb-shaped 8 with increasing thickness in the direction towards the pump the house wall and tapering towards the rear edge of the blade. In this way the fibers slip easily over the blade edge and this thickening interferes only insignificant flow otherwise. To material in the liquid should not get stuck in the transition between vane leading edge 7 and pump house wall 5, the connection is designed with a radius that gives a soft transition without sharp folds.

Med hjälp av uppfinningen åstadkoms sålunda en anordning som vä- sentligt minskar risken för igensättning i främst pumpar som ar- betar med vätskor förorenade av långfibrigt material, trasor etc. e»Thus, by means of the invention, a device is provided which significantly reduces the risk of clogging in mainly pumps that grazing with liquids contaminated with long-fiber material, rags, etc. e »

Claims (3)

3 1 466 768 PATENTKRAV 1 Pump av axialtyp avsedd att pumpa vätskor innehållande för- oreningar i form av långsträckta fibrer, vilken pump innefattar en motor (3) som driver ett roterande pumphjul (1) båda omgivna av ett väsentligen rörformigt pumphus (5), vilket uppbär motor- höljet med hjälp av ett antal nedströms pumphjulet anordnade fästelement (6), vilka även tjänstgör som ledskenor för vätskan, k ä n n e t e c k n a d därav, att ledskenornas (6) framkanter (7) är bakåtsvepta i strömningsriktningen så att deras respek- tive infästningar i pumphusväggen (5) är belägna nedströms respektive infästning i motorhöljet (3), varvid ledskenorna (6) utformas med bulbform (8) med ökande tjocklek i riktning ut mot pumphusväggen (5) och avsmalnande mot bakkanterna. An axial type pump intended to pump liquids containing contaminants in the form of elongate fibers, which pump comprises a motor (3) which drives a rotating impeller (1) both surrounded by a substantially tubular pump housing (5), which supports the motor housing by means of a number of fastening elements (6) arranged downstream of the impeller, which also serve as guide rails for the liquid, characterized in that the leading edges (7) of the guide rails (6) are swept backwards in the direction of flow so that their respective attachments in the pump housing wall (5) are located downstream of the respective mounting in the motor housing (3), the guide rails (6) being formed with a bulb shape (8) with increasing thickness in the direction towards the pump housing wall (5) and tapered towards the trailing edges. 2 Pump enligt krav 1, k ä n n e t e c k n a d därav, att ök- ningen av ledskenornas (6) tjocklek företrädesvis sker genom en rundning av deras respektive över- och undersidor. Pump according to claim 1, characterized in that the increase in the thickness of the guide rails (6) preferably takes place by rounding their respective upper and lower sides. 3 Pump enligt krav 1, k ä n n e t e c k n a d därav, att över- gången mellan ledskenans (6) framkant (7) och pumphusväggen (5) utformas med en radie så att övergången blir mjuk utan några skarpa veck.Pump according to claim 1, characterized in that the transition between the leading edge (7) of the guide rail (6) and the pump housing wall (5) is designed with a radius so that the transition becomes smooth without any sharp folds.
SE9002898A 1990-09-12 1990-09-12 AXIAL TYPE RELEASED PUMP SE466768B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
SE9002898A SE466768B (en) 1990-09-12 1990-09-12 AXIAL TYPE RELEASED PUMP
AT91850194T ATE125335T1 (en) 1990-09-12 1991-08-14 CLOGGING-PROOF PUMP.
EP91850194A EP0475920B1 (en) 1990-09-12 1991-08-14 Clog resistant pump
DE69111345T DE69111345T2 (en) 1990-09-12 1991-08-14 Blockage-proof pump.
JP3217219A JPH0730751B2 (en) 1990-09-12 1991-08-28 pump
AU83610/91A AU645341B2 (en) 1990-09-12 1991-09-02 Clog resistant pump
US07/955,230 US5221182A (en) 1990-09-12 1992-10-01 Vane apparatus for clog resistant pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9002898A SE466768B (en) 1990-09-12 1990-09-12 AXIAL TYPE RELEASED PUMP

Publications (3)

Publication Number Publication Date
SE9002898D0 SE9002898D0 (en) 1990-09-12
SE9002898A SE9002898A (en) 1992-03-13
SE466768B true SE466768B (en) 1992-03-30

Family

ID=20380333

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9002898A SE466768B (en) 1990-09-12 1990-09-12 AXIAL TYPE RELEASED PUMP

Country Status (6)

Country Link
EP (1) EP0475920B1 (en)
JP (1) JPH0730751B2 (en)
AT (1) ATE125335T1 (en)
AU (1) AU645341B2 (en)
DE (1) DE69111345T2 (en)
SE (1) SE466768B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4314477A1 (en) * 1993-05-03 1994-11-10 Klein Schanzlin & Becker Ag Centrifugal pump of axial design
DE4336852A1 (en) * 1993-10-28 1995-05-04 Klein Schanzlin & Becker Ag Guide device for centrifugal pumps
US5562405A (en) * 1994-03-10 1996-10-08 Weir Pumps Limited Multistage axial flow pumps and compressors
DE4433066C2 (en) * 1994-09-16 2002-08-01 Ksb Ag Semi-axial inlet nozzles for axial pumps
DE19510811A1 (en) * 1995-03-24 1996-09-26 Klein Schanzlin & Becker Ag Fiber-repellent wall surface design
GB9526369D0 (en) * 1995-12-22 1996-02-21 Weir Pumps Ltd Improved multistage pumps and compressors
DE19651736A1 (en) * 1996-12-12 1998-06-18 Andreas Dr Keller Water turbine or pump
SE537871C2 (en) 2011-12-13 2015-11-03 Xylem Ip Holdings Llc Propeller pump and pump station

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE475984C (en) * 1928-02-26 1929-05-04 Wilhelm Schulz Dr Ing Blade shape for propeller and screw pumps
SE444969B (en) * 1982-10-11 1986-05-20 Flygt Ab Centrifugal pump intended for pumping of liquids containing solid particles

Also Published As

Publication number Publication date
EP0475920A1 (en) 1992-03-18
JPH0730751B2 (en) 1995-04-10
JPH04279795A (en) 1992-10-05
SE9002898D0 (en) 1990-09-12
DE69111345D1 (en) 1995-08-24
DE69111345T2 (en) 1996-03-07
EP0475920B1 (en) 1995-07-19
AU8361091A (en) 1992-03-19
AU645341B2 (en) 1994-01-13
ATE125335T1 (en) 1995-08-15
SE9002898A (en) 1992-03-13

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