EP0297274A2 - Dispositif de transfert consistant en une pompe avec un moyen d'entraînement - Google Patents

Dispositif de transfert consistant en une pompe avec un moyen d'entraînement Download PDF

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Publication number
EP0297274A2
EP0297274A2 EP88108221A EP88108221A EP0297274A2 EP 0297274 A2 EP0297274 A2 EP 0297274A2 EP 88108221 A EP88108221 A EP 88108221A EP 88108221 A EP88108221 A EP 88108221A EP 0297274 A2 EP0297274 A2 EP 0297274A2
Authority
EP
European Patent Office
Prior art keywords
pump
chamber
seals
oil
motor
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.)
Granted
Application number
EP88108221A
Other languages
German (de)
English (en)
Other versions
EP0297274A3 (en
EP0297274B1 (fr
Inventor
Volkmar Dipl.-Ing. Karge
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.)
ITT Bornemann GmbH
Original Assignee
Joh Heinr Bornemann GmbH
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 Joh Heinr Bornemann GmbH filed Critical Joh Heinr Bornemann GmbH
Publication of EP0297274A2 publication Critical patent/EP0297274A2/fr
Publication of EP0297274A3 publication Critical patent/EP0297274A3/de
Application granted granted Critical
Publication of EP0297274B1 publication Critical patent/EP0297274B1/fr
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
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/008—Pumps for submersible use, i.e. down-hole pumping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/008—Enclosed motor pump units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
    • F04C15/0049—Equalization of pressure pulses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0088—Lubrication

Definitions

  • the invention relates to a delivery unit consisting of a pump with a drive device, in particular an electric motor, -
  • the pump is enclosed on all sides by a waterproof pump housing which has a suction chamber with a suction opening and a pressure chamber with an outlet opening;
  • the pump housing is connected to a likewise watertight motor housing accommodating the drive device, which includes an engine compartment which is partitioned liquid-tight with respect to the pump housing via a first partition area;
  • the motor-side bearings of the pump shaft or spindle and their seals for sealing between the motor and pump chamber are arranged in the first partition area, these seals being connected to the pump chamber on the pump side and thus being acted upon by the pumped medium;
  • the engine compartment is filled with oil that o.dergl. serves and emits the heat to the environment via the motor housing;
  • a pressure compensation space has at least one wall that can be deformed as the pressure is increased.
  • waterproof pump housing is understood to mean a housing which, apart from the suction opening and the outlet opening, has no opening which allows water to enter and is connected to the motor housing with the interposition of a corresponding seal.
  • the engine housing on its side facing away from the first partition area is closed off by a rubber membrane which separates the engine compartment from a chamber in which the entire electrical installation is housed. Due to the resilient design of the above-mentioned rubber membrane, there is an expansion possibility for the oil in the engine when it is heated, by the rubber membrane deforming into the chamber mentioned.
  • DE-OS 22 13 620 discloses a pump unit with an electric motor for underwater operation, in particular for sewage systems, in which the motor sits in a waterproof capsule with a sealed power supply.
  • the capsule is designed as a diving bell surrounding the motor housing, the cavities in the area of the electric motor and inside the diving bell being essentially completely filled with oil.
  • the oil filling inside the diving bell and in the motor housing ensures the lubrication of the motor and at the same time dissipates the heat generated in the area of the motor windings and the rotating parts to the outside.
  • Compressible bodies are provided in the oil-filled area to compensate for thermal expansion of this oil filling.
  • DE-OS 32 45 973 discloses a motor pump assembly consisting of a screw pump and a canned motor arranged thereon on the pressure side, which connects to the pressure chamber of the pump, the motor pump drive shaft being mounted between the pump part and the motor part.
  • the invention has for its object to design the delivery unit described above so that it can be used under water, especially at great depths and with changing pressurization of the suction chamber of the medium.
  • the bearings of the pump shaft or spindle facing away from the drive unit and their seals are arranged in a second partition area, which divides the suction chamber in a liquid-tight manner compared to a watertight, oil-filled lubrication chamber which communicates with the engine compartment in an oil-exchanging manner stands, these seals are on the pump side in connection with the suction chamber and are thus acted upon by the pumped medium, while the oil is used for lubrication of the bearings, the seals acted on and emits the heat via the lubricating chamber housing.
  • suction chamber and pressure chamber apply only to a certain direction of rotation of the pump.
  • the above-mentioned suction chamber becomes the pressure chamber and vice versa the above-mentioned pressure chamber becomes the suction chamber, in which case the above-mentioned outlet opening represents the suction opening and the above-mentioned suction opening the outlet opening.
  • the effect of the pressure equalization remains unchanged.
  • the possibly very high pressure of the pumping medium located in the suction chamber spreads in the said pressure compensation chamber and here leads to the fact that at least one wall of this pressure compensation chamber deforms into the engine compartment and thereby pressurizes its oil filling.
  • the pressure compensation chamber can be arranged in the engine compartment by a rubber-elastic bladder or the like. be educated. It is essential that the pressure prevailing in the suction space seeks to reduce the volume of the engine compartment filled with oil and thereby tries to compress the oil filling with a corresponding pressure increase until a pressure equalization between the pressure in the suction compartment and that in the engine compartment occurs. Therefore, only very slight pressure drops occur on the seals of the pump spindles in the area of the two partition wall areas mentioned, so that the penetration of the medium is prevented and a long service life of the seals is ensured.
  • the pumping unit shown consists of a pump 1 with a drive device 2, the pump being a screw pump, the embodiment of which corresponds to that of the unpublished European patent application No. 86113623.2.
  • the drive device 2 can be a KSB electric motor, the encapsulated motor having a water filling 3, which is connected to a pressure expansion tank 4.
  • the pump 1 is seated in a watertight pump housing 5 which has a suction opening 7 opening into a suction chamber 6.
  • This pump housing 5 is connected to a likewise watertight motor housing 8 which accommodates the drive device 2 and which encloses a motor chamber 9 which surrounds the encapsulated drive unit 2 and which is partitioned in a liquid-tight manner with respect to said suction chamber 6 via a first partition wall region 10.
  • the pump housing 5 On the side facing away from the drive unit 2, the pump housing 5 has a second partition wall area 11, which divides the aforementioned suction chamber 6 in a liquid-tight manner with respect to a lubrication chamber 12.
  • the bearings 13, 14 of the two pump spindles 15, 16 and their seals 17, 18 are arranged in the first and second partition wall regions 10, 11. Furthermore, a gear pump 19 is arranged on the motor side of the first partition wall area 10, which at the same time establishes the rotary connection between the two pump spindles 15, 16.
  • the pump spindle 15 is driven via a clutch 20.
  • a rubber-elastic bladder 21 is arranged in the engine compartment 9, which encloses a pressure compensation compartment 22, which is in fluid communication with the suction compartment 6.
  • the engine compartment 9 is filled with oil and communicates with the lubrication compartment 12 via an oil line 23 guided through the suction compartment 6.
  • the aforementioned gear pump 19 sucks oil from the engine compartment 9 and presses it via the oil line 23 into the lubrication chamber 12, from which it flows back into the engine compartment 9 via the indicated oil return line 25.
  • the oil acts on the engine side seals 17 on the engine side via channels 26 and the seals 18 facing away from the drive unit 2 from the lubrication chamber 12 via channels 27.
  • the seals 17, 18 are each acted upon by the pumping medium located in the suction chamber 6. The oil thus serves to lubricate the bearings 13, 14 and the gear wheels 19, to act on the seals 17, 18 and to dissipate heat, the heat being emitted to the environment via the motor housing 8.
  • the pumping unit shown is particularly suitable for use under water and even at great depths, the suction opening 7 then or the like to an oil hole. can be connected.
  • the pumped medium is then a multi-phase mixture of petroleum, sediments, sea water and natural gas and is or the like with a corresponding pressure increase from the outlet opening 28 into a delivery line. pressed.
  • the pumped medium can thus already have a high pressure in the suction chamber 6, which then also prevails in the pressure compensation chamber 22 of the bladder 21, which attempts to deform or expand outwards under the influence of its internal pressure.
  • the conveyor unit according to the invention can, as can be seen in the drawing, be accommodated in a compact housing which is divided in the middle and has an upper and a lower end cover, wherein these housing parts can be flanged against each other.
  • the first and second partition regions 10, 11 can be welded into the housing.
  • the housing can at its upper end with a suspension device and at its lower end with feet or the like. be provided.
  • the upper cover can advantageously form the lubrication chamber housing 29.
  • the pump pressure chamber in connection with the outlet opening 28 is designated by 30 and forms the suction chamber when the direction of rotation is reversed, the space designated by 6 then forming the pressure chamber, the opening 28 forming the suction opening and the opening 7 forming the outlet opening.
  • the drive device 2 could also be arranged outside the motor housing 8.
  • the housing of the drive device could then e.g. be flanged to the motor housing 8 instead of the lower housing cover shown in FIG. 1, in which case the motor housing 8 shown in FIG. 1 could be made much smaller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Electric Motors In General (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Details Of Reciprocating Pumps (AREA)
EP88108221A 1987-06-29 1988-05-24 Dispositif de transfert consistant en une pompe avec un moyen d'entraînement Expired - Lifetime EP0297274B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873721398 DE3721398A1 (de) 1987-06-29 1987-06-29 Foerderaggregat bestehend aus einer pumpe mit einer antriebseinrichtung
DE3721398 1987-06-29

Publications (3)

Publication Number Publication Date
EP0297274A2 true EP0297274A2 (fr) 1989-01-04
EP0297274A3 EP0297274A3 (en) 1989-10-18
EP0297274B1 EP0297274B1 (fr) 1991-02-27

Family

ID=6330492

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88108221A Expired - Lifetime EP0297274B1 (fr) 1987-06-29 1988-05-24 Dispositif de transfert consistant en une pompe avec un moyen d'entraînement

Country Status (3)

Country Link
EP (1) EP0297274B1 (fr)
DE (2) DE3721398A1 (fr)
NO (1) NO164122C (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991003647A1 (fr) * 1989-09-08 1991-03-21 Multiphase Systems Plc Ameliorations relatives aux pompes
DE4100135C1 (fr) * 1991-01-04 1992-05-14 Loher Ag, 8399 Ruhstorf, De
EP0548733A2 (fr) * 1991-12-23 1993-06-30 Loher Aktiengesellschaft Moteur électrique propre à être utilisé en immersion
DE4209118A1 (de) * 1991-12-23 1993-07-01 Loher Ag Elektromotor
EP0810717A2 (fr) * 1996-05-31 1997-12-03 HEILMEIER & WEINLEIN Fabrik für Oel-Hydraulik GmbH & Co. KG Unité de pompage électro-hydraulique
WO1998053182A1 (fr) * 1997-05-20 1998-11-26 Westinghouse Government Services Company Llc Systeme de pompage sous-marin et procede s'y rapportant
WO2010126651A3 (fr) * 2009-04-30 2011-03-31 General Electric Company Procédé et appareil de lubrification d'un système de pompe à vis
US10711799B2 (en) 2012-05-09 2020-07-14 Nuovo Pignone Srl Pressure equalizer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008018407B4 (de) 2008-04-10 2012-03-22 Joh. Heinr. Bornemann Gmbh Unterwasserförderaggregat
DE102010026239B4 (de) 2010-06-29 2012-05-31 Joh. Heinr. Bornemann Gmbh Unterwasserförderaggregat mit einer Pumpe und einer Antriebseinrichtung
DE102012003066B3 (de) * 2012-02-17 2013-07-04 Netzsch Pumpen & Systeme Gmbh Verfahren und vorrichtung zum fixieren und synchronisieren von drehkolben in einer drehkolbenpumpe

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2023095A1 (de) * 1970-05-12 1971-12-02 Albert Blum Elektrisches Tauchpumpenaggregat
DE3245973A1 (de) * 1982-12-11 1984-06-14 Allweiler Ag, 7760 Radolfzell Motorpumpenaggregat
DE3344765A1 (de) * 1983-12-10 1985-06-13 Vdo Adolf Schindling Ag, 6000 Frankfurt Tauchpumpe

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2213620A1 (de) * 1972-03-21 1973-09-27 Lederle Pumpen & Maschf Pumpaggregat fuer unterwasserbetrieb

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2023095A1 (de) * 1970-05-12 1971-12-02 Albert Blum Elektrisches Tauchpumpenaggregat
DE3245973A1 (de) * 1982-12-11 1984-06-14 Allweiler Ag, 7760 Radolfzell Motorpumpenaggregat
DE3344765A1 (de) * 1983-12-10 1985-06-13 Vdo Adolf Schindling Ag, 6000 Frankfurt Tauchpumpe

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991003647A1 (fr) * 1989-09-08 1991-03-21 Multiphase Systems Plc Ameliorations relatives aux pompes
DE4100135C1 (fr) * 1991-01-04 1992-05-14 Loher Ag, 8399 Ruhstorf, De
US5341058A (en) * 1991-12-23 1994-08-23 Loher Ag Electric motor
DE4209118A1 (de) * 1991-12-23 1993-07-01 Loher Ag Elektromotor
DE4244644A1 (fr) * 1991-12-23 1993-07-15 Loher Ag
EP0548733A3 (en) * 1991-12-23 1993-08-18 Loher Aktiengesellschaft Electric motor applicable for submerged running
EP0548733A2 (fr) * 1991-12-23 1993-06-30 Loher Aktiengesellschaft Moteur électrique propre à être utilisé en immersion
EP0810717A2 (fr) * 1996-05-31 1997-12-03 HEILMEIER & WEINLEIN Fabrik für Oel-Hydraulik GmbH & Co. KG Unité de pompage électro-hydraulique
EP0810717A3 (fr) * 1996-05-31 2000-11-22 HEILMEIER & WEINLEIN Fabrik für Oel-Hydraulik GmbH & Co. KG Unité de pompage électro-hydraulique
WO1998053182A1 (fr) * 1997-05-20 1998-11-26 Westinghouse Government Services Company Llc Systeme de pompage sous-marin et procede s'y rapportant
AU749248B2 (en) * 1997-05-20 2002-06-20 Westinghouse Government Services Company Llc Sub-sea pumping system and associated method
CN1091831C (zh) * 1997-05-20 2002-10-02 西屋行政管理服务有限责任公司 抽吸井中流体的海底抽吸系统及其方法和用于该系统的压力补偿器
WO2010126651A3 (fr) * 2009-04-30 2011-03-31 General Electric Company Procédé et appareil de lubrification d'un système de pompe à vis
GB2481944A (en) * 2009-04-30 2012-01-11 Gen Electric Method and apparatus for lubricating a screw pump system
US10711799B2 (en) 2012-05-09 2020-07-14 Nuovo Pignone Srl Pressure equalizer

Also Published As

Publication number Publication date
NO164122C (no) 1990-08-29
DE3861831D1 (de) 1991-04-04
NO882857L (no) 1988-12-30
DE3721398A1 (de) 1989-01-19
EP0297274A3 (en) 1989-10-18
DE3721398C2 (fr) 1989-05-24
NO164122B (no) 1990-05-21
NO882857D0 (no) 1988-06-28
EP0297274B1 (fr) 1991-02-27

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