EP2072829A1 - Pompe submersible - Google Patents

Pompe submersible Download PDF

Info

Publication number: EP2072829A1
Authority: EP; European Patent Office
Prior art keywords: pump; housing; liquid; sensor; housing part
Prior art date: 2007-12-21
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

EP07024940A

Other languages

German (de)

English (en)

Other versions

EP2072829B2 (fr

EP2072829B1 (fr

Inventor

Jan Lyngholm

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.)

Grundfos Management AS

Original Assignee

Grundfos Management AS

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.)

2007-12-21

Filing date

2007-12-21

Publication date

2009-06-24

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39477558&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2072829(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

2007-12-21 Application filed by Grundfos Management AS filed Critical Grundfos Management AS

2007-12-21 Priority to EP07024940.4A priority Critical patent/EP2072829B2/fr

2008-12-19 Priority to US12/339,201 priority patent/US8454330B2/en

2008-12-22 Priority to CN2008101853538A priority patent/CN101487473B/zh

2009-06-24 Publication of EP2072829A1 publication Critical patent/EP2072829A1/fr

2014-12-17 Application granted granted Critical

2014-12-17 Publication of EP2072829B1 publication Critical patent/EP2072829B1/fr

2017-12-20 Publication of EP2072829B2 publication Critical patent/EP2072829B2/fr

Status Not-in-force legal-status Critical Current

2027-12-21 Anticipated expiration legal-status Critical

Links

Images

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
- 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
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/10—Units comprising pumps and their driving means the pump being electrically driven for submerged use adapted for use in mining bore holes
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
- E21B43/121—Lifting well fluids
- E21B43/128—Adaptation of pump systems with down-hole electric drives
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/008—Monitoring of down-hole pump systems, e.g. for the detection of "pumped-off" conditions
- 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
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use

Definitions

the invention relates to a submersible pump, in particular a borehole pump according to the features specified in the preamble of claim 1.
Submersible pumps are nowadays driven by frequency converters, thus generally have an engine electronics, which makes it necessary or at least appropriate to detect essential operating variables of the pump and taken into account in the control and possibly to process.
These include, for example, the winding temperature of the motor, the temperature of the medium to be pumped, the delivery pressure, the ambient pressure and the like.
the invention has the object, a generic submersible pump, in particular a borehole pump in such a way that one or more sensors cost appropriate Position can be arranged and corresponding signal or data can be connected.
the submersible pump according to the invention in particular borehole pump, has an electric drive motor and a single-stage or multistage centrifugal pump driven by it.
one or more sensors of the pump are arranged in a sensor housing, which is liquid-flowed and liquid surrounds.
the sensor housing is located between the motor and the pump, at the end of the pump or inside the pump.
the sensor housing can either be arranged as a separate housing at the end of the pump or form part of the pump housing, so be formed integrally with this.
the basic idea of the present invention is, if possible, to accommodate the complete sensor system, or at least one or more sensors in a separate sensor housing, which is arranged at the end of the pump, inside the pump or between the motor and pump, ie at the other end of the pump.
This sensor housing may have a modular design, so that it can optionally be retrofitted to existing pumps or at least pumps of the same series can be equipped with or without sensor housing, so can be shipped with and without sensors. Since the sensor housing is arranged between the motor and pump, inside the pump or at the end of the pump, the submersible pump is thereby not changed in its outer contour, but only in their length, which is particularly important for borehole pumps.
the sensor housing according to the invention is advantageously designed and arranged such that it on the one hand flows through liquid and on the other hand surrounded by liquid.
temperatures and / or pressure can be detected by both the surrounding and the funded FLuid.
the entire sensor system or at least a large part is arranged inside the sensor housing, then only this sensor housing needs to be provided with an outwardly directed cable, which is particularly advantageous in borehole pumps when the sensor housing is arranged at the upper end of the pump is, on which anyway only the power cable runs next to the conveyor line.
the wiring can be done via de motor, which anyway requires a cable guide to the outside for electrical power and possibly also for control electronics.
the sensor housing is divided into a liquid-conducting housing part and a liquid-free housing part, which are separated by a preferably formed by stainless steel sheet housing wall.
a housing wall may be formed comparatively thin in the manner of a split tube but absolutely liquid-tight, so that, with the exception of the pressure and / or differential pressure sensors may optionally be measured through the housing wall, for example, temperature, vibration and the like.
an induction arrangement is provided in the sensor housing, with which electrical energy is generated during operation of the pump.
the induction arrangement has at least one magnet arranged rotatably in the liquid-conducting housing part and at least one induction coil arranged in the liquid-free housing part such that a current is induced in the coil by the magnet moving past the coil, which current can be used for the aforementioned purposes .
two or more magnets are arranged, which cooperate with possibly a plurality of induction coils and thus form a kind of electrical generator.
the sensor housing is formed quasi as a further passive pump stage, the flow passing through it drives the pump impeller arranged therein with the magnets attached thereto, thereby inducing a voltage in the one or more coils or generate a current and thus the sensor within the housing supply electricity.
such a passive pump impeller which is freely rotatably disposed within the sensor housing, and on which at least one magnet is arranged, also form part of a flow meter, wherein then within the liquid-free housing part, an inductive pickup, such as a coil is arranged , so that the speed of the pump impeller can be detected and above the flow rate can be determined.
an inductive pickup such as a coil is arranged , so that the speed of the pump impeller can be detected and above the flow rate can be determined.
It does not necessarily have a pump impeller rotatably arranged, it can be arranged rotatably a kind of wing, at the end of a magnet sits, which rotates faster or slower depending on the flow rate.
the pump can be structurally adapted thereto, then instead of a passive impeller advantageously the drive shaft can be extended into the sensor housing inside and there are provided with a holder which the or Magnets and is rotated by the drive shaft itself, also an active pump impeller may be provided which carries magnets.
any desired pump stage can be designed as a sensor housing by appropriate modification. So it is also conceivable, not just one, but to provide a plurality of sensor housing to monitor, for example, the pressure of each pump stage.
Such a cable for the electrical supply of the engine anyway required to use for data transmission is expedient, it is to transmit from the sensor housing out a corresponding signal on at least one conductor in the cable, which must be such that it by suitable filters of the Frequency of the power supply can be separated.
a radio transmission can be provided from the sensor housing, either to a receiver in the motor housing or to a typically arranged above the water surface E-lektronikgenosuse, which includes the control and regulating electronics for the engine.
the motor is anyway an electrical supply cable, this can be used by appropriate design in a simple manner for data transmission, either by modulating the signal or by providing a further conductor. It is then expedient to transmit the electrical signals of the sensors or the data derived therefrom from the sensor housing into the motor housing.
an electroacoustic transducer can be provided, which converts the electrical signal into a sound signal, typically an ultrasonic signal, and transmits it directly or indirectly to the shaft.
an acoustoelectric transducer is then provided, which converts this signal back into an electrical signal, which is then led out in a suitable manner.
sensors may be arranged, typically one or more temperature sensors for detecting the temperature of the flow and / or the surrounding medium, a vibration sensor for detecting mechanical vibrations, a pressure or differential pressure sensor for detecting the ambient pressure and / or the delivery pressure. This list is only an example and can be supplemented by any other sensors.
At least these sensors are particularly advantageous, which need not necessarily be in communication with the surrounding or conveyed liquid, such.
the housing wall of the temperature sensor can be separated by the housing wall of the liquid, as well as the vibration sensor, which brings obvious benefits.
Fig. 1 illustrated well pump 1 is lowered in a borehole 2. It consists of a lower engine part 3, of which in Fig. 1 only the motor housing is visible, this is followed up to a multi-stage centrifugal pump 4, the pump stages in Fig. 1 are indicated. Between engine 3 and pump 4 there are suction openings 5 through which the liquid located in the borehole 2 is sucked, conveyed upwards by the multistage centrifugal pump 4 and finally conveyed via a pressure line 6 to the point of consumption.
the motor 3 is supplied via a cable 7, which is guided long in the area of the centrifugal pump 4 on the outside and next to the pressure line 6 extends to a supply and control housing 8, via which the motor is supplied with power.
a control housing 8 can For example, a frequency converter may be provided, as well as all means for controlling and monitoring the pump.
a sensor housing 9 is arranged, the structure of which is explained below by way of example.
sensor housing 9a is constructed rotationally symmetrical, adapted in the outer periphery to the outer periphery of the pump stages and has on its underside a threaded connector 10 which is provided for incorporation into the end-side thread of the centrifugal pump 4. From the threaded connector 10, the housing wall projects radially outward, so that it is aligned with the circumferential housing wall of the underlying pump stages 4. Towards the upper end, the housing wall is retracted and provided on the inside with an internal thread 11 which corresponds in pitch and diameter to the internal thread at the upper end of the pump, so that the pressure line 6 either directly to the upper end of the pump or under inclusion of the sensor housing 9a can be connected.
the sensor housing 9a has a liquid-conducting inner housing part 12 and a liquid-free outer housing part 13, which are separated from one another by a gap-like wall 14.
the liquid-carrying housing part 12 is substantially tubular and continues to expand the cross section of the pressure line 6, in order then again to pass into the threaded neck 10.
In the extended area of the liquid-free housing part 13 is arranged, which forms a circumferential annular space in which sensors, namely a temperature sensor on the wall 14 adjacent to detecting the temperature of the fluid, a pressure sensor, the wall 14 penetrating to detect the pressure of the pumped liquid , a pressure sensor penetrates the outer wall for detection the ambient pressure and a vibration sensor are arranged.
the electronics required for conditioning of the electrical signals emitted by the sensors are provided within this liquid-free housing part 13.
the cable 15 may be merged with the cable 7 or run parallel thereto.
dargillon sensor housing 9b has the same outer contour as the sensor housing 9a, but stored in the inner liquid-conducting part 12, a passive, ie non-driven pump impeller 16 which is driven by the flowing through liquid, ie rotated.
magnets 17 are arranged, which run at a small distance to the wall 1.
coils 18 are provided, in which when passing the magnets 16, a current is generated, which is used for the electrical power supply of the sensor housing 9b sensors and electronics.
the sensor signals or the data determined therefrom are either inductively fed into the cable 7 guided there on the housing 9b via a data cable or else inductively.
a two-armed wing 19 is provided, which carries at its ends magnet 17, in the same manner as with reference to Fig. 3 previously described serve to generate electricity.
the wings 19 are inclined with their end faces, so that they are also set in flow in rotation, but have a relation to the impeller 16 significantly lower flow resistance.
the sensor housing is an integral part of the pump housing or is inextricably connected to the pump housing.
the drive shaft for the wheels of the centrifugal pump 4 extended upward and carries at the top of a pump impeller 16, which is an active impeller due to the drive through the shaft 20.
a sensor housing 9d whose wall 14 separates the liquid-free housing part 13 from the rest of the pump housing.
magnets are arranged at the bottom, in the same way as with reference to Fig. 3 previously described cooperate with corresponding coils 18 in the liquid-free housing part 13 and provide for the power supply within the sensor housing 9d.
the sensor housing 9d can also be formed by modifying any pump stage. It can therefore be provided 9d also a plurality of sensor housing, if z. B. several pump stages to be monitored.
the sensor housing 9e is also firmly connected to the last stage of the centrifugal pump 4, but there is the pump impeller 16 mounted within the sensor housing 9e freely rotatable, ie as a passive pump impeller similar to the arrangement according to Fig. 3 educated. Again, the power supply of the sensor via magnets 17 on the underside of the pump impeller 16, which cooperate with arranged within the liquid-free housing part 13 coils.
a multi-stage centrifugal pump 4 In the illustration according to Fig. 7 the upper end of a multi-stage centrifugal pump 4 is shown on the left, the lower end connects to the engine part 3, which is shown on the right. Through the housing part performs a common shaft 20, which continues in the engine part 3.
the attached at the upper end of the pump 4 sensor housing 9f corresponds essentially based on Fig. 3 presented and explained. However, here is a signal transmission from the liquid-free housing part 13 out through the liquid through to the shaft 20 by mechanical waves.
an electroacoustic transducer is provided within the liquid-free housing part 13 of the sensor housing 9f, which converts the sensor signals into ultrasonic signals, which are transmitted via the liquid to the shaft 20.
an acoustoelectric transducer 21 At the motor end of the shaft 20, an acoustoelectric transducer 21 is provided, which converts these mechanical vibrations back into an electrical signal, which is then passed through the supply cable 7 of the motor to the supply and control housing 8.
the shaft 20 is guided into the sensor housing 9g, on which a pump impeller 16 of the above-described embodiment according to Fig. 3 sitting.
This pump impeller 16 is thus actively driven by the shaft 20.

Landscapes

Engineering & Computer Science (AREA)
Mining & Mineral Resources (AREA)
Geology (AREA)
Life Sciences & Earth Sciences (AREA)
Physics & Mathematics (AREA)
Environmental & Geological Engineering (AREA)
Fluid Mechanics (AREA)
General Life Sciences & Earth Sciences (AREA)
Geochemistry & Mineralogy (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Geophysics (AREA)
Structures Of Non-Positive Displacement Pumps (AREA)
Control Of Non-Positive-Displacement Pumps (AREA)

EP07024940.4A 2007-12-21 2007-12-21 Pompe submersible Not-in-force EP2072829B2 (fr)

Priority Applications (3)

Application Number	Priority Date	Filing Date	Title
EP07024940.4A EP2072829B2 (fr)	2007-12-21	2007-12-21	Pompe submersible
US12/339,201 US8454330B2 (en)	2007-12-21	2008-12-19	Submersible pump
CN2008101853538A CN101487473B (zh)	2007-12-21	2008-12-22	深井泵

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
EP07024940.4A EP2072829B2 (fr)	2007-12-21	2007-12-21	Pompe submersible

Publications (3)

Publication Number	Publication Date
EP2072829A1 true EP2072829A1 (fr)	2009-06-24
EP2072829B1 EP2072829B1 (fr)	2014-12-17
EP2072829B2 EP2072829B2 (fr)	2017-12-20

Family

ID=39477558

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP07024940.4A Not-in-force EP2072829B2 (fr)	2007-12-21	2007-12-21	Pompe submersible

Country Status (3)

Country	Link
US (1)	US8454330B2 (fr)
EP (1)	EP2072829B2 (fr)
CN (1)	CN101487473B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN104165135A (zh) *	2014-07-08	2014-11-26	中国石油天然气集团公司	潜油电泵传感器免注油快速连接装置
GB2515263A (en) *	2013-04-26	2014-12-24	Rotech Group Ltd	Improved turbine
EP3184823A1 (fr) *	2015-12-21	2017-06-28	Grundfos Holding A/S	Pompe centrifuge
US12258970B2 (en)	2021-05-12	2025-03-25	Grundfos Holding A/S	Centrifugal pump

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP2309133B1 (fr) *	2009-10-05	2015-07-15	Grundfos Management A/S	Agrégat de pompes submersibles
US8347953B1 (en) *	2009-12-11	2013-01-08	Ge Oil & Gas Esp, Inc.	Inline monitoring package for electrical submersible pump
CN101915243B (zh) *	2010-07-09	2012-07-11	美的集团有限公司	冷风扇潜水泵的排空装置及控制方法
US8727737B2 (en) *	2010-10-22	2014-05-20	Grundfos Pumps Corporation	Submersible pump system
US9121270B2 (en)	2011-05-26	2015-09-01	Grundfos Pumps Corporation	Pump system
DE102012200806B4 (de) *	2012-01-20	2014-07-31	Yasa Motors Poland Sp. z.o.o.	Nassläuferpumpe mit Leistungselektronik
WO2015153621A1 (fr)	2014-04-03	2015-10-08	Schlumberger Canada Limited	Estimation d'état et prédiction de la durée de vie de fonctionnement de système de pompage
US11643911B2 (en)	2016-07-26	2023-05-09	Schlumberger Technology Corporation	Integrated electric submersible pumping system with electromagnetically driven impeller
EP3563062B1 (fr) *	2016-12-30	2021-07-21	Grundfos Holding A/S	Ensemble capteur et procédé de détection de panne de pompes et ensemble de pompe comprenant un tel ensemble capteur
US10876534B2 (en) *	2017-08-01	2020-12-29	Baker Hughes, A Ge Company, Llc	Combined pump and motor with a stator forming a cavity which houses an impeller between upper and lower diffusers with the impeller having a circumferential magnet array extending upward and downward into diffuser annular clearances
EP3546760B1 (fr) *	2018-03-26	2020-07-22	Xylem Europe GmbH	Machine électrique submersible
WO2020198446A1 (fr)	2019-03-26	2020-10-01	Schlumberger Technology Corporation	Systèmes de pompage submersibles électriques
EP3744981B1 (fr) *	2019-05-28	2024-08-07	Grundfos Holding A/S	Ensemble de pompe submersible et procédé de fonctionnement de l'ensemble de pompe submersible
DE102019004263A1 (de) *	2019-06-18	2020-12-24	KSB SE & Co. KGaA	Kreiselpumpe und Verfahren zur Zustandserkennung einer Kreiselpumpe
CN115788919A (zh)	2021-09-09	2023-03-14	创科无线普通合伙	潜水泵

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US2969740A (en)	1957-05-27	1961-01-31	American Crucible Products Com	Pump control
US3021788A (en)	1957-05-02	1962-02-20	American Crucible Products Com	Submersible pump
EP1324011A2 (fr)	2001-12-20	2003-07-02	Itt Manufacturing Enterprises, Inc.	Appareil pour détecter la présence d'écoulement d'un liquide
WO2006053944A1 (fr) *	2004-11-17	2006-05-26	Pom Technology Oy Ab	Appareillage centrifuge de dégazage équipé d’un capteur

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2007
- 2007-12-21 EP EP07024940.4A patent/EP2072829B2/fr not_active Not-in-force
2008
- 2008-12-19 US US12/339,201 patent/US8454330B2/en not_active Expired - Fee Related
- 2008-12-22 CN CN2008101853538A patent/CN101487473B/zh not_active Expired - Fee Related

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Publication number	Priority date	Publication date	Assignee	Title
US2550667A (en) *	1944-08-01	1951-05-01	Byron Jackson Co	Seal structure
US3021788A (en)	1957-05-02	1962-02-20	American Crucible Products Com	Submersible pump
US2969740A (en)	1957-05-27	1961-01-31	American Crucible Products Com	Pump control
EP1324011A2 (fr)	2001-12-20	2003-07-02	Itt Manufacturing Enterprises, Inc.	Appareil pour détecter la présence d'écoulement d'un liquide
WO2006053944A1 (fr) *	2004-11-17	2006-05-26	Pom Technology Oy Ab	Appareillage centrifuge de dégazage équipé d’un capteur

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2515263A (en) *	2013-04-26	2014-12-24	Rotech Group Ltd	Improved turbine
GB2515263B (en) *	2013-04-26	2015-09-09	Rotech Group Ltd	Improved turbine
CN104165135A (zh) *	2014-07-08	2014-11-26	中国石油天然气集团公司	潜油电泵传感器免注油快速连接装置
CN104165135B (zh) *	2014-07-08	2016-03-09	中国石油天然气集团公司	潜油电泵传感器免注油快速连接装置
EP3184823A1 (fr) *	2015-12-21	2017-06-28	Grundfos Holding A/S	Pompe centrifuge
RU2649722C1 (ru) *	2015-12-21	2018-04-04	Грундфос Холдинг А/С	Лопастной насос
US10823183B2 (en)	2015-12-21	2020-11-03	Grundfos Holding A/S	Centrifugal pump
US12258970B2 (en)	2021-05-12	2025-03-25	Grundfos Holding A/S	Centrifugal pump

Also Published As

Publication number	Publication date
US20090162223A1 (en)	2009-06-25
CN101487473B (zh)	2011-12-07
EP2072829B2 (fr)	2017-12-20
CN101487473A (zh)	2009-07-22
EP2072829B1 (fr)	2014-12-17
US8454330B2 (en)	2013-06-04

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