US3671152A - Electric pump assembly for use in pumping explosive or dangerous liquids - Google Patents

Electric pump assembly for use in pumping explosive or dangerous liquids Download PDF

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Publication number
US3671152A
US3671152A US10258A US3671152DA US3671152A US 3671152 A US3671152 A US 3671152A US 10258 A US10258 A US 10258A US 3671152D A US3671152D A US 3671152DA US 3671152 A US3671152 A US 3671152A
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US
United States
Prior art keywords
container
liquid
electric pump
pump
wire
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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
US10258A
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English (en)
Inventor
Paul Andre Guinard
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POMPES GUINARD ETS
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POMPES GUINARD ETS
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Publication date
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Publication of US3671152A publication Critical patent/US3671152A/en
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    • 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
    • F04D13/0653—Units comprising pumps and their driving means the pump being electrically driven the motor being flooded
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/132—Submersible electric motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/24—Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium

Definitions

  • This invention relates to an electric pump assembly for use in pumpingexplosive or dangerous liquids in containers, the assembly comprising a fluid tight container, an electric pump mounted'within said container, a pump liquid inlet within the container, and a pump liquid outlet, the pump comprising an electric pump motor, said electric pump motor including a winding for submerging in a liquid in the container, said winding comprising at least one wire, a covering insulating said wire, which covering resists the liquid, sealing means through which said wire extends without discontinuity to the exterior of the container, and electric power input terminals on said wire.
  • the present invention relates to an immersible electric pump arrangement.
  • the electric pump arrangement forming the subjectmatter of the invention and meeting the above-stated conditions is characterized in that it comprises a motor, which had a winding submerged in the pumped liquid, and the Wires of the winding, completely insulated by a covering which resists this liquid, are extended, without a break, at their two ends and guided through sealing means to a junction box, outside the container, in which the electric pump arrangement is suspended in known manner and in a Way in which a complete seal is obtained.
  • FIG. 2 shows an axial section through the electric pump arrangement
  • FIG. 3 is a sectional view, on a greater scale, of the exterior terminal box of the electric motor of the pump arrangement, and
  • a vertical electric pump arrangement 1 is disposed in a well 2, let into a container, of which there is shown only part of the upper Wall 3 which contains an opening 4 for fixing the tube forming the well 2.
  • the electric pump arrangement is constituted by an electric motor the interior of which is flooded by the liquid from the container.
  • the motor shaft 19 carrying the rotor 20 is mounted in the casing 21 on two bearings 22 and 22 of the hydrostatic type, lubricated by the pumped liquid.
  • the impeller 23 of centrifugal type is mounted outside casing 21 on the lower end of the shaft 19; the impeller casing 24 is secured to the lower end of the motor casing 21, the shaft 19 having a flange resting on a stop 26, which supports the weight of the rotor and the hydraulic thrust, and which will be described by reference to FIG. 4.
  • the pumped liquid is a liquefied gas
  • adequate circulation of liquid is achieved inside the motor with the help of an inlet bore 30, whereby the annular compression passage between the parts 21 and 29 communicates, near its lower end, with the interior of the casing 21, whilst a leakage bore 31 establishes communication between the upper part of the casing 21 and the interior of the container or of the well 2.
  • the liquid compressed in this manner inside the motor casing may be utilized to feed the hydrostatic bearings 22 and 22' and the stop 26, but it appears more advantageous to feed them directly by the pressure built up at 25 and 25', as will be explained with reference to FIG. 4.
  • the winding 32 of the stator 33 of the motor is constituted by wire insulated by a liquid-tight coating which resists any chemical action of the pumped liquid.
  • the ends 34 and 34' of the wire comprising the winding are passed out of the casing 21 into a lateral compartment 35 through transverse orifices fitted with elastomeric seals 36 and 36', and are then inserted in a sleeve 37, resistant to mechanical damage and fixed at 38 in the wall of the compartment 35 and run to the top of the container where the wires are introduced into the outer terminal box 17 (FIGS. 1 and 3), in a manner that will be described later.
  • the terminal box 17 (FIG. 3) is constituted by a liquidtight enclosure in which are mounted connectors 39 and 40. Box 17 is mounted in a liquid-tight manner, by any known suitable means (not illustrated), on the edges of an opening 41 in the wall 3 of the container or of the bell cap 5, as illustrated in FIG. 1.
  • the box 17 preferably has a double-walled base 42, 43, defining a compartment 44 provided with openings 45 and 46 which enable this compartment to be flushed with air or a neutral gas to drive out leakage gases which might find their way into it from the container through the holes through which the electric wires 34 and 34 pass.
  • These holes are formed in tubular parts 47 and 48 fitted through the walls 42 and 43 of the box 17 with interposed sealing rings 49, 49 and 50, 50'.
  • tubular parts 47 and 48 The ends of the holes through tubular parts 47 and 48 are of cylindro-conical shape, and blocks 51, 51 and 52, 52' of elastically deformable material, through which the wires 34 and 34 pass, are clamped therein by caps 53, 53' and 54, 54' fixed, by means of screws, for example, on the ends of the tubular parts 47 and 48.
  • the tubular parts 47 and 48 In the region within the compartment 44 of the box 17, the tubular parts 47 and 48 contain lateral openings 55, 55 and 56, 56' through which anyleakage gases can enter this compartment 44, from which they are removed by the above-mentioned flushing.
  • the interior of the terminal box 17 is filled, after fitting, with an insulating compound or a pressurized neutral gas, through an orifice having a closure means 57.
  • the pump arrangement described thus contributes to the provision of an installation for stocking and pumping dangerous liquids by means of a submerged electric pump, which installation is particularly safe.
  • a closed fluid-tight container for said liquid comprising a closed fluid-tight container for said liquid; an immersible pump assembly mounted within said container and comprising a housing provided with a liquid inlet and a liquid outlet, and a pump and an electric motor arranged within said housing; a junction box arranged outside of said container and provided with input terminals to which power supply wires are connected; said electric motorcomprising a winding immersed in said liquid and wound of wire having insulation resistant to said liquid, said insulated wire of said winding extending without discontinuity through an opening in said housng and an opening in the upper part of said container to said terminals in said junction box, and fluid-tight sealing means provided in said opening of said container to prevent liquid or vapor thereof passing from said container into said junction box.
  • a closed fluid-tight container for said liquid an immersible pump assembly mounted within said container and comprising a housing provided with a liquid inlet and a liquid outlet, a pump and an electric motor arranged within said housing, said electric motor having a winding immersed in liquid in said container and wound of wire having an insulation resistant to said liquid, an opening for said wire from said housing into said con tainer, an opening at the top of said container, a junction box mounted in a fluid-tight manner over said latter opening and provided with input terminals to which power supply wires are connected, the wire of said insulated winding extending without discontinuity from the motor through said openings to said input terminals, said junction box comprising a base plate and a partition forming a double walled base lower compartment and an upper compartment, inlet and outlet openings in said lower compartment through which said compartment is flush

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Motor Or Generator Frames (AREA)
US10258A 1969-02-21 1970-02-10 Electric pump assembly for use in pumping explosive or dangerous liquids Expired - Lifetime US3671152A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6904413A FR2032189A5 (ko) 1969-02-21 1969-02-21

Publications (1)

Publication Number Publication Date
US3671152A true US3671152A (en) 1972-06-20

Family

ID=9029422

Family Applications (2)

Application Number Title Priority Date Filing Date
US10258A Expired - Lifetime US3671152A (en) 1969-02-21 1970-02-10 Electric pump assembly for use in pumping explosive or dangerous liquids
US210740A Expired - Lifetime US3694110A (en) 1969-02-21 1971-12-22 Immersible electric pump arrangements

Family Applications After (1)

Application Number Title Priority Date Filing Date
US210740A Expired - Lifetime US3694110A (en) 1969-02-21 1971-12-22 Immersible electric pump arrangements

Country Status (4)

Country Link
US (2) US3671152A (ko)
DE (1) DE2006681C3 (ko)
FR (1) FR2032189A5 (ko)
GB (1) GB1292384A (ko)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4260334A (en) * 1976-02-11 1981-04-07 Kelley Contract Dewatering Company Ground dewatering system
US5799834A (en) * 1996-10-21 1998-09-01 Marley Pump Telescoping column pipe assembly for fuel dispensing pumping systems
US5853113A (en) * 1996-10-21 1998-12-29 Marley Pump Telescoping column pipe assembly for fuel dispensing pumping systems
CN106545297A (zh) * 2016-12-22 2017-03-29 李峰 一种适用于减压法开采可燃冰的潜水泵

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3850550A (en) * 1971-08-05 1974-11-26 Hydr O Matic Pump Co Centrifugal pump and motor
US3877845A (en) * 1973-06-28 1975-04-15 Acf Ind Inc Electric in-tank fuel pump
FR2481854A1 (en) * 1980-04-30 1981-11-06 Popescu Marin Unsealed submersible electric pump motor - uses double varnishing of individual rotor and stator laminations and plastics coated tinned copper wire for coils
JPS58192997A (ja) * 1982-05-07 1983-11-10 Hitachi Ltd 立形モ−タポンプ
GB2135731A (en) * 1983-02-17 1984-09-05 Graziella Freschi Submersible pumps
EP0209625B1 (en) * 1985-07-09 1990-10-24 JAMES HOWDEN & COMPANY LIMITED Gas circulator
NO163503C (no) * 1987-10-26 1990-06-06 Kvaerner Eureka As Pumpeaggregat.
DE3834668A1 (de) * 1988-10-12 1990-04-19 Klein Schanzlin & Becker Ag Druckfest gekapselter spaltrohrmotor
US5674057A (en) * 1995-03-03 1997-10-07 Westinghouse Electric Corporation Submersible canned motor mixer pump
US5820271A (en) * 1997-01-29 1998-10-13 Hackett, Jr.; William F. Thrust bearing assembly
US6227819B1 (en) 1999-03-29 2001-05-08 Walbro Corporation Fuel pumping assembly
US6231318B1 (en) 1999-03-29 2001-05-15 Walbro Corporation In-take fuel pump reservoir
JP3672505B2 (ja) * 2001-06-19 2005-07-20 株式会社東洋電機工業所 水中攪拌ポンプ
US7513755B2 (en) * 2003-07-03 2009-04-07 Vaporless Manufacturing, Inc. Submerged motor and pump assembly
FR2906580B1 (fr) * 2006-09-28 2009-01-09 Snecma Sa Pompe a moteur electrique, immergee dans le fluide a pomper
FR2915535B1 (fr) * 2007-04-30 2009-07-24 Snecma Sa Machine tournante comportant un systeme d'equilibrage axial passif
DE102008018407B4 (de) * 2008-04-10 2012-03-22 Joh. Heinr. Bornemann Gmbh Unterwasserförderaggregat
FR2932530B1 (fr) * 2008-06-17 2011-07-01 Snecma Turbomachine a systeme de maintien en position longue duree
US8167578B2 (en) * 2009-06-30 2012-05-01 Crane Pumps & Systems, Inc. Switch and float assembly for a pump
NO20110786A1 (no) * 2011-05-31 2012-12-03 Fmc Kongsberg Subsea As Subsea kompressor direkte drevet av en permanentmagnetmotor med en stator og rotor nedsunket i vaeske
FR3047776B1 (fr) * 2016-02-15 2019-07-19 Liebherr-Aerospace Toulouse Sas Turbomachine et son procede de montage
CH714176A1 (de) * 2017-09-19 2019-03-29 Fives Cryomec Ag Zentrifugalpumpe für kryogene Fördermedien.

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888878A (en) * 1958-06-16 1959-06-02 William G Cobb Neutronic reactor fuel pump
US3494291A (en) * 1967-10-13 1970-02-10 Air Reduction Bearing assembly

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4260334A (en) * 1976-02-11 1981-04-07 Kelley Contract Dewatering Company Ground dewatering system
US5799834A (en) * 1996-10-21 1998-09-01 Marley Pump Telescoping column pipe assembly for fuel dispensing pumping systems
US5853113A (en) * 1996-10-21 1998-12-29 Marley Pump Telescoping column pipe assembly for fuel dispensing pumping systems
US5921441A (en) * 1996-10-21 1999-07-13 Marley Pump Telescoping column pipe assembly for fuel dispensing pumping systems
CN106545297A (zh) * 2016-12-22 2017-03-29 李峰 一种适用于减压法开采可燃冰的潜水泵
CN106545297B (zh) * 2016-12-22 2018-06-01 李峰 一种适用于减压法开采可燃冰的潜水泵

Also Published As

Publication number Publication date
US3694110A (en) 1972-09-26
GB1292384A (en) 1972-10-11
DE2006681B2 (de) 1975-02-06
DE2006681A1 (de) 1970-09-24
DE2006681C3 (de) 1975-09-18
FR2032189A5 (ko) 1970-11-20

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