EP1477683B1 - Spaltrohrmotorpumpe - Google Patents

Spaltrohrmotorpumpe Download PDF

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Publication number
EP1477683B1
EP1477683B1 EP04008290A EP04008290A EP1477683B1 EP 1477683 B1 EP1477683 B1 EP 1477683B1 EP 04008290 A EP04008290 A EP 04008290A EP 04008290 A EP04008290 A EP 04008290A EP 1477683 B1 EP1477683 B1 EP 1477683B1
Authority
EP
European Patent Office
Prior art keywords
pump
canned motor
bearing
shaft
motor 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.)
Expired - Lifetime
Application number
EP04008290A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1477683A3 (de
EP1477683A2 (de
Inventor
Ernst Graf
Jürgen Gröschel
Steffen Prager
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 PL04008290T priority Critical patent/PL1477683T3/pl
Priority to SI200431847T priority patent/SI1477683T1/sl
Publication of EP1477683A2 publication Critical patent/EP1477683A2/de
Publication of EP1477683A3 publication Critical patent/EP1477683A3/de
Application granted granted Critical
Publication of EP1477683B1 publication Critical patent/EP1477683B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
    • F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F04D13/0613—Special connection between the rotor compartments

Definitions

  • the invention relates to a canned motor pump with an upstream of the rotor chamber of the engine means for preventing a transfer of solids contained in the pumped liquid and a liquid circuit for cooling the liquid present in the rotor chamber.
  • the design according to the features a and b has the consequence that the centrifugally directed conveying action generated by the centrifugal disc causes due to the conical shape of the space surrounding the centrifugal disc on the wall thereof a flow directed to the pump side, from the in said space an uninterrupted circulation flow results.
  • this circulation flow solid particles are collected, which are returned by the impeller back to the pump outlet directed to the flow. This can be done with the help of the surface roughness of the impeller or by means of back vanes on the impeller.
  • the feature c additionally assumes the function of a barrier, which has only a very small fluid passage result.
  • the effect of the features a to c makes a heat exchanger for the liquid located in the rotor chamber necessary, this aggregate completing the heat exchanger is arranged outside of the pump and motor part and connected via pipes to the rotor space.
  • the drive of the liquid circuit can be done externally, but preferred is an embodiment in which an arranged on the shaft of the unit impeller takes over the maintenance of the cooled circuit.
  • a barrier against the passage of hot fluid into the rotor space is generated by a thrust bearing arranged on the pump side, which forms a narrow radial gap with the housing part surrounding the thrust bearing.
  • a ceramic plain bearing is preferred, which is lubricated on the one hand directly and on the other hand indirectly via arranged in the shaft holes through the located in the rotor chamber of the canned motor pump liquid.
  • the centrifugal disc is also proposed to form the centrifugal disc as a resilient element, so as to make it capable of biasing the ceramic plain bearing.
  • the centrifugal disc may consist of a single disc or be composed of several discs.
  • the in the Fig. 1 shown canned motor pump consists essentially of a pump part 1 and a motor part 2.
  • Side of the motor part 2 is a heat exchanger 3, which is connected to the motor part 2 via pipes 4 and 5, respectively.
  • a shaft 6 On which an impeller 7 and a rotor 8 are arranged.
  • a ceramic plain bearing is arranged, which consists of a bearing bush 10, a motor-side thrust bearing 11, a pump-side thrust bearing 12 and a bearing sleeve 13.
  • an impeller 14 On the side facing away from the pump part 1 side of the thrust bearing 11 is an impeller 14 through which the liquid present in the rotor chamber 15 of the motor part 2 is moved in a guided over the heat exchanger 3 cycle.
  • the impeller 7 has on its side facing the pressure side Radenraum 16 back vanes 17. These maintain a pointing in the direction of the pump outlet 18 promotion and thus lead into the Radierraum 16 incoming, mixed with admixtures delivery liquid again.
  • a promotion would dissipate in a conventionally designed Raderraum the penetrated dirt particles only to an insufficient extent. Due to the prevailing flow conditions, it would lead to accumulations of dirt, which would ultimately lead to progressive abrasion in the region of the relatively moving parts. In addition, dirt particles could get into the rotor chamber 15.
  • a radial gap 23 between the thrust bearing 12 and the housing cover 9 forms a barrier against a fluid exchange between the space 21 and the rotor chamber 15, thus protecting the rotor space from heat contained in the pumped liquid.
  • a thread 24 which promotes in the direction of the space 21 can still be provided on the axial bearing 12 rotating with the shaft 6.
  • the Fig. 3 shows this feature.
  • the centrifugal disc 19 assumes a further task in the illustrated unit: it serves to apply a prestressing force acting on the bearing sleeve 13. This makes it possible that the axial extent of the bearing sleeve 13 may change by a predetermined amount to accommodate different thermal expansion.
  • Fig. 2 This assumes a one-piece, made of metal centrifugal disk 19, in the execution of Fig. 4 it is a centrifugal disc 26 composed of three individual spring washers 25.
  • the fluid located in the rotor chamber 15 and circulated by the impeller 14 also serves to lubricate the thrust bearings 11 and 12. This happens on the one hand directly through the surrounding fluid, on the other hand, bores 27 are provided in the shaft 6, the fluid to the thrust bearings 11 and 12 conduct. About holes 28 and a groove 29, this liquid finally reaches the sliding surfaces of the thrust bearings 11 and 12th

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
EP04008290A 2003-05-16 2004-04-06 Spaltrohrmotorpumpe Expired - Lifetime EP1477683B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL04008290T PL1477683T3 (pl) 2003-05-16 2004-04-06 Hermetyczna pompa z silnikiem
SI200431847T SI1477683T1 (sl) 2003-05-16 2004-04-06 Črpalka z mokrotekočim rotorjem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10322464A DE10322464B4 (de) 2003-05-16 2003-05-16 Spaltrohrmotorpumpe
DE10322464 2003-05-16

Publications (3)

Publication Number Publication Date
EP1477683A2 EP1477683A2 (de) 2004-11-17
EP1477683A3 EP1477683A3 (de) 2009-05-27
EP1477683B1 true EP1477683B1 (de) 2012-01-25

Family

ID=33016445

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04008290A Expired - Lifetime EP1477683B1 (de) 2003-05-16 2004-04-06 Spaltrohrmotorpumpe

Country Status (8)

Country Link
EP (1) EP1477683B1 (es)
AT (1) ATE543003T1 (es)
DE (1) DE10322464B4 (es)
DK (1) DK1477683T3 (es)
ES (1) ES2380820T3 (es)
PL (1) PL1477683T3 (es)
PT (1) PT1477683E (es)
SI (1) SI1477683T1 (es)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101608641B (zh) * 2009-06-23 2010-12-08 襄樊五二五泵业有限公司 化工流程泵的泵体保温结构
FR2964425B1 (fr) * 2010-09-03 2014-02-14 Snecma Turbopompe, en particulier pour l'alimentation de moteurs de fusee
CN102297143B (zh) * 2011-08-11 2013-02-13 马建锐 一种永磁电机排水泵
DE102011055599A1 (de) * 2011-11-22 2013-05-23 Hella Kgaa Hueck & Co. Pumpe für einen Temperaturkreislauf in einem Fahrzeug
DE102011119626A1 (de) 2011-11-29 2013-05-29 Wilo Se Nassläufer-Motorpumpe
DE102011119625A1 (de) 2011-11-29 2013-05-29 Wilo Se Nassläufer-Motorpumpe
CN103775347B (zh) * 2012-10-22 2016-12-07 中国核动力研究设计院 具有动态排气功能的全密封泵
CN104006001B (zh) * 2014-05-29 2016-04-27 安徽银龙泵阀股份有限公司 一种带加热丝的泵芯
CN107288789B (zh) * 2016-03-30 2019-08-30 长城汽车股份有限公司 燃油泵、燃油箱及车辆燃油供给系统和车辆燃油供给方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE951130C (de) * 1940-11-11 1956-10-25 Hayward Tyler & Company Ltd Aus einem Elektromotor und einer von diesem angetriebenen Pumpe bestehendes System
CH292898A (fr) * 1951-08-13 1953-08-31 Charmilles Sa Ateliers Groupe moto-pompe hydraulique.
FR1250077A (fr) * 1960-01-26 1961-01-06 Klein Schanzlin & Becker Ag Groupe électro-pompe centrifuge étanche
US3186513A (en) * 1962-11-09 1965-06-01 James T E Dunn Method and mechanism for lubricating the bearings of a pump rotor and motor combination for pumping an abradant-containing liquid
US3318253A (en) * 1965-01-21 1967-05-09 Pall Corp Pumps with heat exchanger for pumping slurries
GB1163325A (en) * 1966-11-17 1969-09-04 Filton Ltd Improvements in and relating to Centrifugal Pumps
CH532201A (de) * 1970-12-11 1972-12-31 Inventio Ag Schmier- und Filtereinrichtung für Umwälzpumpe
FR2247114A5 (en) * 1973-10-05 1975-05-02 Thomson Brandt Electric motor-centrifugal pump combination - has impeller with extending shaft in material resistant to line fluid corrosion
DE2534740C3 (de) * 1975-08-04 1983-02-03 Franz 4630 Bochum Klaus Spaltrohrkreiselpumpe
FR2508563B1 (fr) * 1981-06-26 1985-11-08 Electro Hydraulique Seh Motopompe a moteur electrique a rotor noye
JPS63266193A (ja) * 1986-09-30 1988-11-02 Jun Taga ポンプ
DE3834667A1 (de) * 1988-10-12 1990-04-19 Klein Schanzlin & Becker Ag Filtereinrichtung fuer einen spaltrohrmotor
DE3834668A1 (de) * 1988-10-12 1990-04-19 Klein Schanzlin & Becker Ag Druckfest gekapselter spaltrohrmotor
DE19946849B4 (de) * 1999-09-30 2010-09-16 Ksb Ag Spaltrohrmotorpumpe

Also Published As

Publication number Publication date
ES2380820T3 (es) 2012-05-18
PT1477683E (pt) 2012-04-27
DE10322464A1 (de) 2004-12-02
EP1477683A3 (de) 2009-05-27
ATE543003T1 (de) 2012-02-15
DE10322464A8 (de) 2005-04-28
PL1477683T3 (pl) 2012-07-31
DK1477683T3 (da) 2012-05-07
DE10322464B4 (de) 2012-05-03
EP1477683A2 (de) 2004-11-17
SI1477683T1 (sl) 2012-05-31

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