US1763149A - Inclosed submersible machine - Google Patents

Inclosed submersible machine Download PDF

Info

Publication number
US1763149A
US1763149A US255166A US25516628A US1763149A US 1763149 A US1763149 A US 1763149A US 255166 A US255166 A US 255166A US 25516628 A US25516628 A US 25516628A US 1763149 A US1763149 A US 1763149A
Authority
US
United States
Prior art keywords
motor
reservoir
fluid
casing
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
US255166A
Inventor
Gutmann Victor
Steiner Ludwig
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.)
CBS Corp
Original Assignee
Westinghouse Electric and Manufacturing Co
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 Westinghouse Electric and Manufacturing Co filed Critical Westinghouse Electric and Manufacturing Co
Application granted granted Critical
Publication of US1763149A publication Critical patent/US1763149A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/06Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F04D13/10Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00Function
    • F05D2260/60Fluid transfer
    • F05D2260/602Drainage
    • F05D2260/6022Drainage of leakage having past a seal

Definitions

  • This invention relates generally to inclosed electrical machines for operation under water and more particularly to submersible electric motors.
  • a collecting reservoir is provided at the bottom of the motor casing and a suitable electric heater element is disposed therein to eifect vaporization of the collected fluid.
  • the supply of current for the electric heater element is controlled by a switch responsive to the fluid level in the reservoir.
  • the heater element is energized and transforms the fluid into vapor which is discharged, under its own pressure, through a check valve, into the well.
  • a further object of the invention is to provide for indicating above ground when the the first instance, the leakage fluid inclosing casing of a submersible-type electrical machine becomes filled to a predetermined height with leakage liquid.
  • the numeral 1 designates a portion of a bore hole or well partly filled with a fluid 2.
  • an electrical pumping set comprising a centrifugal or screw pump 3 and a motor 4 for actuating the pump.
  • the pump 3 and motor 4 are joined together in a unitary structure by means of the skeleton casting 5.
  • the set may be suspended in the bore hole 1 b the ump tubing 6 which is connected to t e disc arge port of the pump 3 by means of the coupling member 7.
  • a reservoir 9' is provided at'the bottom of the motor casing in which all of the leakage fluid which enters the casing'ff the motor 4 may be collected.
  • the reservoir 9 for collecting the leakage fluid is formed by extending the motor casing to rovide a cylindrical member 11, as shown.
  • e reservoir 9 is provided with a bottom 12 provided with an openin 13 through which leakage fluid may bedisc arged into the well or bore hole.
  • the discharge of the fluid through the opening 13 may be controlled by any suita le valve mechanism, and, in this articular embodiment of the invention, a fluid-actuated valve, comprising a movable valve member 14 and an actuating float 15 is provided.
  • valve member 14 is disposed to be urged upwardly into en agemcntwith the valve seat 16 when the fl oat 15 is submerged in the fluid 2 and is actuated to its open or discharge position when the float 15, is raised above the fluid level.
  • Guide memm0 bers 17 ,and 18 are provided for maintaining the valve mechanism in proper position to insure reliable operation.
  • the float 15 extends downwardly for a considerable distance below the bottom of the reservoir 9 in order that the discharge opening may be closed and suflicient pressure exerted upon the movable valve member 14 before the submersion of the motor.
  • the signalling is accomplished by automatically stopping the motor 4 when the leakage fluid has risen to a predetermined height in the reservoir 9.
  • a mercury switch 19 is mounted within the casing and disposed to be actuated by a float 2.
  • the phase windings 22 of the motor 4 are connected to a star point in the mercury switch 19 through a plurality of leads 23 which extend from the phase windings 22 through a suitable opening 24 in the top of the reservoir 9, as shown.
  • the mercury switch 19 is normally closed but may be actuated to the open position to interrupt the motor supply circuit when the fluid level in the reservoir 9 reaches a predetermined height.
  • the motor-supply circuit comprises a plurality of conductors 25 which extend from a suitable source of power on the surface.
  • the conductors 25 are run through a moistureproof conduit 26 for protection against moisture and other harmful agents.
  • the interruption of the motor-supply circuit indicates to the operator that the reservoir has become filled with leakage fluid to a dangerous height which necessitates raising the motor out of the fluid.2 in order to cause operation of the valve member 14'to permit the leakage fluid to discharge from the reservoir 9.
  • a pump for pumping fluids, a motorfor operating the pump, a casing for inclosing the motor, said casing being provided with a reservoir for collecting leakage fluid, means for discharging leakage fluid from the reservoir when the motor casing is raised out of the fluid, and means responsive to the level of the fluid in the reservoir for controlling the operation of the motor.
  • a pump for raising fluids a motor for operating the pump, a casing for inclosing the motor, a reservoir for collecting leakage fluid carried by the motor casing, means for discharging fluid fromthe reser voir when the motor casing is raised out of the fluid, and means provided within the reservoir for stopping the motor and thereby indicating when the motor casing should be raised to cause a discharge of the leakage fluid from the reservoir.
  • a pump for raising fluids a motor for operating the pump, a casing for inclosing the motor, a reservoir carried by the casing for collecting leakage fluid, a discharge opening in the reservoir, fluid-actuated means for closing the discharge opening when the motor casing is submersed, and fluid-actuated means within the casing for stopping the motor and thereby indicating when the motor casing should be raised to allow the discharge opening of the reservoir to open and discharge the leakage fluid from .the reservoir.
  • a pump for raising fluids, a mo-' tor for operating the pump, a casing for inclosing the motor, a reservoir carried bythe casing for collecting leakage fluid, a floatactuated valve for controlling the discharge of leakage fluid from the reservoir, and means responsive to a predetermined quantity of-leakage fluid in the reservoir for automatically stopping the motor.
  • a pump for raising fluids
  • a motor for operating the pump
  • a casing for inclosing the motor
  • a reservoir carried by the casing for collecting leakage fluid
  • a floatactuated valve for discharging leakage fluid from the reservoir when raised out of the fluid
  • means within the reservoir responsive to the height of the fluid level in the reservoir for automatically stopping the moat before the leakage fluid in the casing has reached the motor windings.
  • a motor for operating the pump, a casing for inclosing the motor, a reservoir carried by the casing for collecting leakage fluid, and opening in the reservoir, vice disposed to be controlled by the fluid outside the reservoir ing the discharge opening before the motor casing enters the fluid, and means responsive to the level of the fluid in the. reservoir for stopping the motor and thereby indicating when the leakage fluid has collected in a redetermined quantity and for indicating w en the leakage fluid has discharged from the reservoir after the opening of the discharge con trol device.
  • a pump for. raising fluids
  • a motor for operating the pump
  • a casi g for inclosing the motor
  • a reservoir for collecting leakage fluid.
  • an open sleeve portion at the bottom of said reservoir a discharge port .in the bottom of the reservoir communicating with the open sleeve portion, means disposed within'the open sleeve portion for opening the discharge port when the casing is raised out of the fluid, and means responsive to fluid in the reservoir for stopping the motor and thereby indicating when the motor casing should be raised out of the fluid to permit the opening of the discharge port.
  • a pump for raising fluids.
  • a motor for operating the pump, a casing for inclosing the motor, a reservoir for collecting leakage fluid, and means for discharging flllld from the reservoir, said discharge means being disposed to automatically open and close when the motor casing is raised and submerged. respectively.
  • a pump for raising fluids, a motor for operating the pump, a casing for inclosing the motor. a reservoir disposed beneath the motor for collecting leakage fluid, said reservoir having adischarge opening, and a float-actuated valve disposed to control the discharge opening, said float-actuated valve being disposed to close the discharge opening before the motor is submerged.

Description

June 10, 1930. v. GUTMANN El AL INCLOSED SUBl V IERSIBLE MACHINE Filed Feb Q 17, 1928 INVENTORS Victor Gurmann and I I l In IL HJIIIIK f Ludwig Sf inet' AT'TORNEY 15 pendin Patented June 1-0, 1930 UNITED STATES PATENT OFFICE VICTdB GUTMANN, F NUBEMIBERG, AND LUID'WIG STEHTEB, OF BERLIN, GERMANY,
ASSIGNORS T0 WESTINGHOUSE ELECTRIC AND MANUFACTURING COMPANY, A COR- PORATION OF PENNSYLVANIA INOLOSED SUBMEBSIBLE Application fled February 17, 1928, Serial 1T0. 255,166, and in Germany April 80, 1927.
' This invention relates generally to inclosed electrical machines for operation under water and more particularly to submersible electric motors.
In operating an electrical machine submerged in a liquid, such, for example, as a submersible pumping equipment for oil wells,
special provision must be made to prevent the motor casing from filling with water or oil to such a de e as to result ininjury to the motor windings.
Various means have been rovided for removing leakage fluid from t e motor casing, either continuously or intermittently, deupon the particular structure utilized.
is collected in a reservoir located at the bottom of the motor casing from .which it is discharged into the well by means of a highpressure centrifugal pump actuated from the the motor shaft.
In removing the leakage fluid intermittently, a collecting reservoir is provided at the bottom of the motor casing and a suitable electric heater element is disposed therein to eifect vaporization of the collected fluid. The supply of current for the electric heater element is controlled by a switch responsive to the fluid level in the reservoir. The heater element is energized and transforms the fluid into vapor which is discharged, under its own pressure, through a check valve, into the well. The objectpf the present invention, generally stated, is to provide means for excluding leakage fluid from a submersible type elec-- trical machine which shall be simple and economical to manufacture and operate.
A more specific object of the invention is to provide for collecting and discharging leakage fluid from the inclosing casing of a submersible-type electrical machine. Another object of the invention is to provide for automatically interrupting the supply circuit of a submersible-type electrical machine to prevent the occurrence of a flashover caused by excessive amounts of leakage fluid entering the machine casing.
A further object of the invention is to provide for indicating above ground when the the first instance, the leakage fluid inclosing casing of a submersible-type electrical machine becomes filled to a predetermined height with leakage liquid.
Other 0 jects of the invention will become evident from the following description, taken in conjunction with the accompanying draw-' ing in which the single figure is a view partly in section and partly in side elevation, of a submersible-type electrical pumping equipment'showing details of construction.
Referring to the drawing, the numeral 1 designates a portion of a bore hole or well partly filled with a fluid 2.
In order 'to pump the fluid, an electrical pumping set comprising a centrifugal or screw pump 3 and a motor 4 for actuating the pump is provided. 'As shown, the pump 3 and motor 4 are joined together in a unitary structure by means of the skeleton casting 5. The set may be suspended in the bore hole 1 b the ump tubing 6 which is connected to t e disc arge port of the pump 3 by means of the coupling member 7.
Since it is practically impossible to construct a perfect fluid-tight packing for the motor drive shaft 8, a reservoir 9'is provided at'the bottom of the motor casing in which all of the leakage fluid which enters the casing'ff the motor 4 may be collected.
this embodiment of the invention, the reservoir 9 for collecting the leakage fluid is formed by extending the motor casing to rovide a cylindrical member 11, as shown. e reservoir 9 is provided with a bottom 12 provided with an openin 13 through which leakage fluid may bedisc arged into the well or bore hole. a
The discharge of the fluid through the opening 13 may be controlled by any suita le valve mechanism, and, in this articular embodiment of the invention, a fluid-actuated valve, comprising a movable valve member 14 and an actuating float 15 is provided.
As shown, the valve member 14 is disposed to be urged upwardly into en agemcntwith the valve seat 16 when the fl oat 15 is submerged in the fluid 2 and is actuated to its open or discharge position when the float 15, is raised above the fluid level. Guide memm0 bers 17 ,and 18 are provided for maintaining the valve mechanism in proper position to insure reliable operation.
' In the preferred embodiment of the invention, the float 15 extends downwardly for a considerable distance below the bottom of the reservoir 9 in order that the discharge opening may be closed and suflicient pressure exerted upon the movable valve member 14 before the submersion of the motor.
It will be readily understood that, after the pumping set has been submerged and in operation for a considerable length of time, the natural leakage which occurs, gradually tends to fill the reservoir 9 and, if allowed to accumulate indefinitely, the fluid level will rise into the motor casing 4 and cause serious damage to the motor windings. Therefore, in order to indicate to the operator the quantity of leakage fluid which has collected in the reservoir 9, a suitable signalling or indicating system is provided.
In this particular embodiment of the invention, the signalling is accomplished by automatically stopping the motor 4 when the leakage fluid has risen to a predetermined height in the reservoir 9. As shown, a mercury switch 19 is mounted within the casing and disposed to be actuated by a float 2. The phase windings 22 of the motor 4 are connected to a star point in the mercury switch 19 through a plurality of leads 23 which extend from the phase windings 22 through a suitable opening 24 in the top of the reservoir 9, as shown. The mercury switch 19 is normally closed but may be actuated to the open position to interrupt the motor supply circuit when the fluid level in the reservoir 9 reaches a predetermined height. As shown, the motor-supply circuit comprises a plurality of conductors 25 which extend from a suitable source of power on the surface. The conductors 25 are run through a moistureproof conduit 26 for protection against moisture and other harmful agents.
The interruption of the motor-supply circuit indicates to the operator that the reservoir has become filled with leakage fluid to a dangerous height which necessitates raising the motor out of the fluid.2 in order to cause operation of the valve member 14'to permit the leakage fluid to discharge from the reservoir 9.
It will be readily understood also that various current-responsive trip mechanisms may be utilized to open the supply switch of the motor at the top of the well thereby de-' energizing the motor windings to prevent flashover in the event the leakagefluid comes into contact with motor windings. Furthermore, since the motor packing is more efiective when the shaft is not turning, .the'automatic stopping of the motor will reduce the leakage of fluid into the motor casing until the pump can be raised and the collected fluid discharged, as described hereinbefore.
We would state, in conclusion, that, while the illustrated example constitutes a practical embodiment of our invention, we do not limit ourselves strictly to the exact details herein illustrated since modifications of the same may be made without departing from the spirit of the invention as defined in the appended claims.
We claim as our nvention:
1. In a submersible electrical machine, in combination, a pump for pumping fluids, a motorfor operating the pump, a casing for inclosing the motor, said casing being provided with a reservoir for collecting leakage fluid, means for discharging leakage fluid from the reservoir when the motor casing is raised out of the fluid, and means responsive to the level of the fluid in the reservoir for controlling the operation of the motor.
2. In a submersible electrical machine, in combination, a pump for raising fluids, a motor for operating the pump, a casing for inclosing the motor, a reservoir for collecting leakage fluid carried by the motor casing, means for discharging fluid fromthe reser voir when the motor casing is raised out of the fluid, and means provided within the reservoir for stopping the motor and thereby indicating when the motor casing should be raised to cause a discharge of the leakage fluid from the reservoir.
3. In a submersible electrical machine, in combination, a pump for raising fluids, a motor for operating the pump, a casing for inclosing the motor, a reservoir carried by the casing for collecting leakage fluid, a discharge opening in the reservoir, fluid-actuated means for closing the discharge opening when the motor casing is submersed, and fluid-actuated means within the casing for stopping the motor and thereby indicating when the motor casing should be raised to allow the discharge opening of the reservoir to open and discharge the leakage fluid from .the reservoir.
4. In a submersible electrical machine, in
combination, a pump for raising fluids, a mo-' tor for operating the pump, a casing for inclosing the motor, a reservoir carried bythe casing for collecting leakage fluid, a floatactuated valve for controlling the discharge of leakage fluid from the reservoir, and means responsive to a predetermined quantity of-leakage fluid in the reservoir for automatically stopping the motor.
5. In a submersible electrical machine, in combination, a pump for raising fluids, a motor for operating the pump, a casing for inclosing the motor, a reservoir carried by the casing for collecting leakage fluid, a floatactuated valve for discharging leakage fluid from the reservoir when raised out of the fluid, and means within the reservoir responsive to the height of the fluid level in the reservoir for automatically stopping the moat before the leakage fluid in the casing has reached the motor windings.
6. In a submersible electrical machine, 1n
combination, a pump for raising fluids, a
motor for operating the pump, a casing for inclosing the motor, a reservoir carried by the casing for collecting leakage fluid, and opening in the reservoir, vice disposed to be controlled by the fluid outside the reservoir ing the discharge opening before the motor casing enters the fluid, and means responsive to the level of the fluid in the. reservoir for stopping the motor and thereby indicating when the leakage fluid has collected in a redetermined quantity and for indicating w en the leakage fluid has discharged from the reservoir after the opening of the discharge con trol device.
7 In a submersible electrical machine, in combination, a pump for. raising fluids, a motor for operating the pump, a casi g for inclosing the motor, a reservoir for collecting leakage fluid. an open sleeve portion at the bottom of said reservoir, a discharge port .in the bottom of the reservoir communicating with the open sleeve portion, means disposed within'the open sleeve portion for opening the discharge port when the casing is raised out of the fluid, and means responsive to fluid in the reservoir for stopping the motor and thereby indicating when the motor casing should be raised out of the fluid to permit the opening of the discharge port.
8. In a submersible electrical machine, in combination, a pump for raising fluids. a motor for operating the pump, a casing for inclosing the motor, a reservoir for collecting leakage fluid, and means for discharging flllld from the reservoir, said discharge means being disposed to automatically open and close when the motor casing is raised and submerged. respectively.
9. In a submersible electrical machine, in combination, a pump for raising fluids, a motor for operating the pump, a casing for inclosing the motor. a reservoir disposed beneath the motor for collecting leakage fluid, said reservoir having adischarge opening, and a float-actuated valve disposed to control the discharge opening, said float-actuated valve being disposed to close the discharge opening before the motor is submerged.
In testimony whereof, we have hereunto subscribed our names this 14th day of J anuary, 1928.
VICTOR GUTMANN. LUDWIG STEINER.
a float-actuated de-- for automatically 'clos
US255166A 1927-04-30 1928-02-17 Inclosed submersible machine Expired - Lifetime US1763149A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1763149X 1927-04-30

Publications (1)

Publication Number Publication Date
US1763149A true US1763149A (en) 1930-06-10

Family

ID=7742254

Family Applications (1)

Application Number Title Priority Date Filing Date
US255166A Expired - Lifetime US1763149A (en) 1927-04-30 1928-02-17 Inclosed submersible machine

Country Status (1)

Country Link
US (1) US1763149A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4842163A (en) * 1986-09-19 1989-06-27 Bravo Sergio M Gasoline collector pit box and submersible unit box
US5100024A (en) * 1986-09-19 1992-03-31 Bravo Sergio M Gasoline collector pit box and submersible unit box
EP3327323A4 (en) * 2015-07-23 2019-03-27 Eagle Industry Co., Ltd. Shaft-sealing device and submersible pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4842163A (en) * 1986-09-19 1989-06-27 Bravo Sergio M Gasoline collector pit box and submersible unit box
US4971225A (en) * 1986-09-19 1990-11-20 Bravo Sergio M Gasoline collector pit box and submersible unit box
US5100024A (en) * 1986-09-19 1992-03-31 Bravo Sergio M Gasoline collector pit box and submersible unit box
EP3327323A4 (en) * 2015-07-23 2019-03-27 Eagle Industry Co., Ltd. Shaft-sealing device and submersible pump

Similar Documents

Publication Publication Date Title
US3472168A (en) Automatic submersible pump
US2981195A (en) Fluid flow motor control
US3070021A (en) Adjustable high turn-on control
US2488506A (en) Hydrostatic control for pumps
US2918016A (en) Submersible sump pump
US2424657A (en) Liquid level control device for pumping units
US3408942A (en) Bilge pump
US2577559A (en) Submersible pump assembly
US3041976A (en) Motor pump construction
US1942241A (en) Liquid level controlling means
US2687693A (en) Sump pump
US1763149A (en) Inclosed submersible machine
US2260312A (en) Float actuated electrical control system
US3303785A (en) Adjustable automatic control for a pump
US2975347A (en) Liquid level control system
US2769395A (en) Leak detector and pump control system
US4195968A (en) Liquid level control
US2976807A (en) Electric motor-driven pump installation
US2539048A (en) Motor-driven pumping apparatus for wells
US3684400A (en) Submersible pump and control system
US2972708A (en) Protective means for submersible pump-motors
US3342136A (en) Liquid supply circuit
US1985314A (en) Time controlled flushing apparatus
US3352246A (en) Automatic submersible pump
US2221798A (en) Series submersible motor pump