EP2054622B1 - Förderpumpe - Google Patents

Förderpumpe Download PDF

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Publication number
EP2054622B1
EP2054622B1 EP07786115A EP07786115A EP2054622B1 EP 2054622 B1 EP2054622 B1 EP 2054622B1 EP 07786115 A EP07786115 A EP 07786115A EP 07786115 A EP07786115 A EP 07786115A EP 2054622 B1 EP2054622 B1 EP 2054622B1
Authority
EP
European Patent Office
Prior art keywords
feed
pump
pump according
radial wheel
feed pump
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.)
Active
Application number
EP07786115A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2054622A1 (de
Inventor
Axel Binder
Christoph Keller
Christoph Jäger
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.)
KSB AG
Original Assignee
KSB 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 KSB AG filed Critical KSB AG
Priority to SI200730187T priority Critical patent/SI2054622T1/sl
Publication of EP2054622A1 publication Critical patent/EP2054622A1/de
Application granted granted Critical
Publication of EP2054622B1 publication Critical patent/EP2054622B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/06—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure
    • F04B15/08—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts for liquids near their boiling point, e.g. under subnormal pressure the liquids having low boiling points
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
    • 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
    • F04D29/2222—Construction and assembly
    • F04D29/2227—Construction and assembly for special materials
    • 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
    • F04D29/225—Channel wheels, e.g. one blade or one flow channel
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps

Definitions

  • the invention relates to a feed pump with a variable speed drive for a metered flow rate delivery, wherein the feed pump is designed as a single-stage centrifugal pump in a impeller space of a pump housing without a sealing gap rotationally arranged radial centrifugal type for conveying a fluid between a pump inlet and a pump outlet.
  • the drive motor has a PEEK split tube inside which a rotor protected by a stainless steel coating is located. Ceramic bearings of the pump shaft and the drive rotor are lubricated by a partial flow of the pumped liquid taken from the pump housing.
  • the open impeller has a diameter between 1 and 2 inches and the impeller driving rotor of the roller bearing DC motor has a diameter between 1.5 and 2 inches.
  • the single-stage pumping device with the open impeller should reach maximum speeds of up to 60,000 rpm.
  • Suction nozzle, discharge nozzle and a downstream of the impeller type of spiral space are arranged in an outer pump housing part, while an inner pump housing part has the cantilevered impeller and a mounting for a variable speed DC canned motor as a drive motor.
  • a metering pump is realized as centrifugal centrifugal type, which is designed for continuous operation in a partial load operating point field. Its flow limits are in the range of 0 ml / min to 3600 ml / min at delivery height limits of 20 m to 300 m.
  • the impeller rotates without contact within an impeller space and a return flow within the wheel sidewalls is permitted. This ensures a wear-free operation of the impeller.
  • the centrifugal pump is designed for an extreme part-load operation, whereby small amounts are conveyed pulsation-free.
  • the diameter of the impeller space is at most 4% larger than an outer diameter of a radial wheel arranged therein and the impeller space is provided with one or more, acute-angled or tangential to Radialradaußen pressmesser arranged pump outlet channels.
  • the delivery of the centrifugal pump results from a proportion of static pressure, which builds up due to the centrifugal force within the impeller space and a dynamic proportion in the form of the dynamic pressure, which occurs at the transition from the impeller space to the pump outlet in the form of a Druckstutzen- or outlet channel.
  • the dynamic pressure component at the outlet opening from the impeller space corresponds to a maximum.
  • the addition of the centrifugal delivery head component and the delivery head component due to the back pressure to a total delivery head of the pump results in the high pressure factor for this type of pump.
  • a sealing of the impeller space relative to the atmosphere or the tempering takes place with one or more shaft seals between a housing wall of the impeller space and a rotary Radialrad- or a shaft part penetrating them.
  • These can be known shaft seals or low-friction mechanical seals.
  • Such seals can be dispensed with if a hermetically sealed, magnetically coupled drive transmits a torque to the radial wheel. This can also be designed as a tear-resistant hysteresis coupling.
  • Next can be connected to the radial wheel an electric, pneumatic or hydraulic drive.
  • Such a drive motor is attached to the pump or Temperiergephase and connected via a guided through this housing shaft with the radial wheel.
  • the arranged in the drive motor bearing the rotor shaft can be found in a conventional manner at the same time as storage of the pump shaft and the radial wheel use.
  • the feed pump is connected to a control device, which is connected to an internal or external volume flow measurement and independent of a back pressure of a system with the drive motor generates an adjustable constant volume flow.
  • a control device With the control device, a variable speed range of the drive motor with a quantity factor up to the value 5000 is generated in the switching or control range between minimum and maximum delivery. And in the speed range of the drive motor from 0 to 35000 revolutions / min is a centrifugal pump delivery pressure between 0 to 300 bar.
  • centrifugal pump operating data are only possible due to the contrary to all known design rules interpretation of radial wheel and housing of the pump unit for an extreme permanent part-load operation.
  • the pump unit, drive motor, switching or control device and associated electronic operating, measuring and control elements are combined to form an assembly-capable module.
  • Fig. 1 is a delivery pump in a single-stage design shown.
  • a radial wheel 2 centrifugal type is arranged to rotate.
  • the radial wheel 2 has delivery channels 3 and is centrally through a pump inlet 4 flows.
  • the radial wheel 2 is connected to transmit power to a variable speed drive 5 and has an outer diameter D LA , which may be up to 50 mm.
  • the radial wheel rotates in an impeller space 6, the inner diameter D LRI is designed to be only 4% larger than the outer diameter D LA of the radial wheel 2.
  • the area of the pump inlet 4 is defined by a contact surface 12 located in the immediate vicinity of the pump interior, against which a line to be connected for a delivery fluid bears sealingly.
  • An analogous training is on the - here below the drawing plane, only partially visible as a semicircle - pump outlet 13 is present.
  • External temperature control for example, coolant
  • Coolant are fed through the optional axial or radial ports 14, 15 the temperature control chambers 7.1 to 7.3 and derived.
  • Pump unit and drive motor 5 are combined to form a structural unit and held in a support member 16.
  • the support element 16 provides the prerequisite for the modular design or installation in an existing system.
  • Fig. 3 shows a perspective view of a radial wheel 2.
  • the radial wheel 2 is designed disc-shaped and provided in this example with a hub 2.1. Within the hub 2.1 is a force-transmitted connection with the shaft 10, not shown here of the drive 5. Within the radial wheel 2, four conveyor channels 3 are arranged. In addition, a plurality of conveying recesses 18 are arranged on the impeller periphery 17, which are designed in the form of blind holes. With the help of these delivery wells, the pressure coefficient of the centrifugal impeller is significantly improved.
  • the pressure and suction side shrouds 19, 20 a plurality of radially extending conveyor grooves 21.
  • the feed grooves 21 also improve the pressure digit of one Fig. 1 in an impeller room 6 built-in impeller.
  • the impeller in the axial direction penetrating compensation bores 22 serve to equalize pressure within the pump housing and at the same time as an assembly aid in the preparation of a connection to the drive.
  • Fig. 4 shows a section through an impeller 2. It can be seen that here only a total of four conveyor channels 3 are used. Their diameter is adjusted so that they do not intersect an adjacent conveyor channel in the region of the impeller inlet 23. Thus, the maintenance of a defined impeller inlet diameter is guaranteed.
  • the depth T of the conveying recesses 18 is selected as a function of the desired residual volume of a fully assembled pump.
  • any other shape such as grooves, slots or the like, find application, with which in the range of the impeller outer diameter, an energy transfer is possible.
  • Fig. 5 shows a cross section through the feed pump. Due to the generous temperature control room 7.2, which is in operative connection with the other temperature control room, a permanent extreme partial load operation is guaranteed.
  • the non-contact arrangement of the impeller within the impeller space avoids sealingly abutting friction surfaces. This measure prevents the generation of mechanical frictional heat, prevents fretting and consequent contamination of a pumped liquid with abraded particles and improves reliability through significantly extended periods of use. In addition, the cleanability counteracting sealing gaps are avoided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Eye Examination Apparatus (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Fluid-Driven Valves (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
EP07786115A 2006-08-26 2007-07-17 Förderpumpe Active EP2054622B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200730187T SI2054622T1 (sl) 2006-08-26 2007-07-17 Dovajalna ŽŤrpalka

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006040130A DE102006040130A1 (de) 2006-08-26 2006-08-26 Förderpumpe
PCT/EP2007/006315 WO2008025410A1 (de) 2006-08-26 2007-07-17 Förderpumpe

Publications (2)

Publication Number Publication Date
EP2054622A1 EP2054622A1 (de) 2009-05-06
EP2054622B1 true EP2054622B1 (de) 2009-12-16

Family

ID=38610560

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07786115A Active EP2054622B1 (de) 2006-08-26 2007-07-17 Förderpumpe

Country Status (13)

Country Link
US (1) US8021133B2 (zh)
EP (1) EP2054622B1 (zh)
JP (1) JP2010501782A (zh)
CN (1) CN101506526B (zh)
AT (1) ATE452292T1 (zh)
AU (1) AU2007291652B2 (zh)
DE (2) DE102006040130A1 (zh)
DK (1) DK2054622T3 (zh)
NO (1) NO337736B1 (zh)
SI (1) SI2054622T1 (zh)
TW (1) TWI345031B (zh)
WO (1) WO2008025410A1 (zh)
ZA (1) ZA200900924B (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004022141A1 (de) * 2004-05-05 2005-11-24 Heidelberger Druckmaschinen Ag Vorrichtung zum Fördern und gleichzeitigen Ausrichten von Bogen
US9347458B2 (en) 2010-12-21 2016-05-24 Pentair Flow Technologies, Llc Pressure compensating wet seal chamber
WO2012088328A1 (en) 2010-12-21 2012-06-28 Sta-Rite Industries, Llc Pressure compensating wet seal chamber
CN102828964A (zh) * 2012-09-18 2012-12-19 杨鑫强 多孔飞轮泵
WO2014137206A1 (en) * 2013-03-07 2014-09-12 Chaushevski Nikola Rotational chamber pump
CN105143679B (zh) 2013-03-19 2018-07-06 流量控制有限责任公司 能够被安装在各种构造中的低轮廓泵
JP6428410B2 (ja) * 2015-03-18 2018-11-28 株式会社島津製作所 液化二酸化炭素送液ポンプとそれを備えた超臨界流体クロマトグラフ
CN108005912A (zh) * 2016-10-31 2018-05-08 北京精密机电控制设备研究所 一种高背压大流量超高速涡轮泵
DE102016225908A1 (de) * 2016-12-21 2018-06-21 KSB SE & Co. KGaA Freistrompumpe
CN109826798A (zh) * 2017-11-23 2019-05-31 浙江富莱欧机电有限公司 一种变频增压泵
DE102018126395A1 (de) * 2018-10-23 2020-04-23 Moog Gmbh Elektrohydrostatischer Antrieb mit vergrößertem Betriebsbereich
CN115182829B (zh) * 2022-07-15 2023-05-12 哈尔滨工业大学 一种大压差、高转速浮动环密封测试试验台

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB203659A (en) * 1922-09-09 1924-03-20 Unchokeable Pump Ltd Improvements in and relating to centrifugal pumps
US1988875A (en) * 1934-03-19 1935-01-22 Saborio Carlos Wet vacuum pump and rotor therefor
DE1115586B (de) * 1957-07-12 1961-10-19 Eugen Soeding Kanalradpumpe mit an den Aussenseiten der Radwaende zusaetzlich angeordneten Rippen
US3647314A (en) * 1970-04-08 1972-03-07 Gen Electric Centrifugal pump
US3915351A (en) * 1974-08-19 1975-10-28 Alexander Enrico Kiralfy Cordless electrically operated centrifugal pump
US4480592A (en) * 1982-11-30 1984-11-06 Goekcen Mehmet R Device for converting energy
IT1187933B (it) * 1986-02-25 1987-12-23 Gilardini Spa Pompa rotativa per liquidi
US4704071A (en) * 1986-06-17 1987-11-03 Mccullough Ross M Method and apparatus for pumping liquids
US4798176A (en) * 1987-08-04 1989-01-17 Perkins Eugene W Apparatus for frictionally heating liquid
DE3843428C2 (de) * 1988-12-23 1993-12-09 Klein Schanzlin & Becker Ag Kreiselpumpenlaufrad geringer spezifischer Drehzahl
JPH03111697A (ja) * 1989-09-22 1991-05-13 Jidosha Denki Kogyo Co Ltd 小型遠心ポンプ
US5341768A (en) * 1993-09-21 1994-08-30 Kinetic Systems, Inc. Apparatus for frictionally heating liquid
US5540550A (en) * 1994-01-21 1996-07-30 Nikkiso Co., Ltd. Solid impeller for centrifugal pumps
DE10024955A1 (de) * 2000-05-22 2001-11-29 Richter Chemie Tech Itt Gmbh Kreiselpumpe mit Magnetkupplung
WO2004034405A2 (en) * 2002-09-26 2004-04-22 Atomix, Llc Roto-dynamic fluidic system
US7089886B2 (en) * 2003-04-02 2006-08-15 Christian Helmut Thoma Apparatus and method for heating fluids
US7316501B2 (en) * 2004-05-20 2008-01-08 Christian Thoma Apparatus and method for mixing dissimilar fluids
US7387262B2 (en) * 2004-05-28 2008-06-17 Christian Thoma Heat generator

Also Published As

Publication number Publication date
NO20090626L (no) 2009-05-08
EP2054622A1 (de) 2009-05-06
NO337736B1 (no) 2016-06-13
SI2054622T1 (sl) 2010-04-30
AU2007291652B2 (en) 2011-08-18
DE502007002365D1 (de) 2010-01-28
CN101506526B (zh) 2011-06-08
TW200831787A (en) 2008-08-01
ATE452292T1 (de) 2010-01-15
US8021133B2 (en) 2011-09-20
TWI345031B (en) 2011-07-11
AU2007291652A1 (en) 2008-03-06
CN101506526A (zh) 2009-08-12
DE102006040130A1 (de) 2008-02-28
ZA200900924B (en) 2009-12-30
WO2008025410A1 (de) 2008-03-06
DK2054622T3 (da) 2010-04-19
US20090191065A1 (en) 2009-07-30
JP2010501782A (ja) 2010-01-21

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