EP0082891A1 - Pumping system - Google Patents

Pumping system Download PDF

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Publication number
EP0082891A1
EP0082891A1 EP81201401A EP81201401A EP0082891A1 EP 0082891 A1 EP0082891 A1 EP 0082891A1 EP 81201401 A EP81201401 A EP 81201401A EP 81201401 A EP81201401 A EP 81201401A EP 0082891 A1 EP0082891 A1 EP 0082891A1
Authority
EP
European Patent Office
Prior art keywords
motor
machine
pump
coupled
volumetric machine
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.)
Withdrawn
Application number
EP81201401A
Other languages
German (de)
French (fr)
Inventor
Jean-Claude Peters
Pierre-Henri Fabeck
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.)
Umicore NV SA
Original Assignee
Ateliers de Constructions Electriques de Charleroi SA
ACEC SA
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 Ateliers de Constructions Electriques de Charleroi SA, ACEC SA filed Critical Ateliers de Constructions Electriques de Charleroi SA
Priority to EP81201401A priority Critical patent/EP0082891A1/en
Publication of EP0082891A1 publication Critical patent/EP0082891A1/en
Withdrawn legal-status Critical Current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
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B47/00—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
    • F04B47/06—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth
    • F04B47/08—Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth the motors being actuated by fluid

Definitions

  • a motor for example an electric motor
  • drives a rotary pump for example a propeller pump.
  • the drive by an electric motor can be done by placing the motor on the discharge side, which generally requires a relatively long shaft and poses problems of guiding this shaft, or by placing the motor on the suction side, which raises the problem of the great length of such a motor, especially when the pump must operate in narrow wells.
  • the object of the invention is a very space-saving pumping system, with variable speed, and which can operate by means of a drive by any rotary motor, for example electric motor, diesel engine, gas turbine, etc.
  • the pumping system in which a motor drives a rotary pump is characterized according to the invention, in that the motor is coupled to a volumetric machine with variable displacement, connected by means of hydraulic conduits to at least one volumetric machine with fixed displacement coupled with the rotary pump.
  • a rotary pump such as a propeller pump 1 arranged for example at the bottom of a well is coupled to a volumetric machine with fixed displacement 2, for example a barrel machine with fixed inclination per se known.
  • the pump 1 is connected to a discharge conduit 3 which supplies, for example, an irrigation system represented by a channel 4.
  • the volumetric machine 2 is connected by means of flexible conduits 5 resistant to high pressures to a volumetric machine 6 with displacement variable.
  • the displacement of the machine 6 can be modified by means of a crank 7 which controls the inclination of a barrel body. In place of the crank, it is obviously possible to make the adjustment by a hydraulic piston or by an electric drive system, not shown.
  • the machine 6 can be driven by a rotary motor, for example an electric motor, a diesel engine, a gas turbine or even by means of a suitable transmission, a hand-held or animal-driven motor.
  • the size of the motor 8 no longer has any drawback given the particularly small size of the machine 2 coupled to the pump.
  • the motor 8 can be arranged at a suitable distance from the pump, in particular above a well or on the bank of a channel where it is easy to place, monitor and maintain it.
  • the engine 8 can be arranged, on a single common chassis, in addition the accessories of the hydraulic circuit of the machines 2 and 6 such as oil tank 9, oil filter, cooling exchanger as well as the valves and other control and maintenance devices.
  • a single machine 6 driven by a powerful motor 8 can be connected to several machines 2 each coupled to a pump.
  • the system When the system operates with an internal combustion engine, it is independent of an electrical distribution network and can operate in arid and deserted regions with limited, periodic monitoring either for fuel supply or for regulating the speed depending on the tank level. When this level can change unexpectedly, it is possible to provide automatic control of the pump speed.
  • FIG. 2 shows the pump 1, partially in section. It includes a paddle wheel 10, mounted on a shaft It rotating in bearings 12 and 13.
  • the shaft It is coupled to the volumetric machine with fixed displacement 2.
  • the shaft 11 itself is held in place by bearings stop at the location of the bearing 13 and is enclosed in a bulb 14 also surrounding the coupling 15 with the machine 2.
  • the bulb 14 is held in place and supported by upstream anti-rotation ribs 16 and downstream diffusion ribs 17.
  • a conduit formed through one of the ribs 16 makes it possible to lubricate the bearings at the location of the bearing 13.
  • the lubricant can be the hydraulic fluid itself.
  • the vanes of the wheel 10 are adjustable when the wheel is removed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

In a pumping system in which a motor (8) drives a rotary pump (1), the motor (8) is coupled to a volumetric machine of variable capacity (6), connected by means of hydraulic pipes (5) to at least one volumetric machine of fixed capacity (2) coupled to the rotary pump (1). <IMAGE>

Description

Dans les systèmes de pompage connus, un moteur, par exemple un moteur électrique, entraîne une pompe rotative, par exemple une pompe à hélice. L'entraînement par un moteur électrique peut se faire en disposant le moteur du côté refoulement, ce qui nécessite en général un arbre relativement long et pose des problèmes de guidage de cet arbre, ou en disposant le moteur du côté aspiration, ce qui soulève le problème de la grande longueur d'un tel moteur, notamment lorsque la pompe doit fonctionner dans des puits étroits.In known pumping systems, a motor, for example an electric motor, drives a rotary pump, for example a propeller pump. The drive by an electric motor can be done by placing the motor on the discharge side, which generally requires a relatively long shaft and poses problems of guiding this shaft, or by placing the motor on the suction side, which raises the problem of the great length of such a motor, especially when the pump must operate in narrow wells.

L'invention a pour but un système de pompage très peu encombrant , à vitesse variable, et pouvant fonctionner grâce à un entraînement par un moteur rotatif quelconque par exemple moteur électrique, moteur diesel, turbine à gaz etc.The object of the invention is a very space-saving pumping system, with variable speed, and which can operate by means of a drive by any rotary motor, for example electric motor, diesel engine, gas turbine, etc.

Le système de pompage dans lequel un moteur entraîne une pompe rotative est caractérisé suivant l'invention, en ce que le moteur est accouplé à une machine volumétrique à cylindrée variable, reliée au moyen de conduits hydrauliques à au moins une machine volumétrique à cylindrée fixe accouplée à la pompe rotative.The pumping system in which a motor drives a rotary pump is characterized according to the invention, in that the motor is coupled to a volumetric machine with variable displacement, connected by means of hydraulic conduits to at least one volumetric machine with fixed displacement coupled with the rotary pump.

L'invention est décrite ci-dessous par rapport à un exemple d' une forme d'exécution en se référant au dessin annexé.The invention is described below with respect to an example of an embodiment with reference to the accompanying drawing.

Une pompe rotative telle une pompe à hélice 1 disposée par exemple au fond d'un puits est accouplée à une machine volumétrique à cylindrée fixe 2, par exemple une machine à barillet à inclinaison fixe en soi connue. La pompe 1 est reliée à un conduit de refoulement 3 qui alimente par exemple un système d'irrigation représenté par un canal 4. La machine volumétrique 2 est reliée au moyen de conduits souples 5 résistant à des pressions élevées à une machine volumétrique 6 à cylindrée variable. La cylindrée de la machine 6 peut être modifiée au moyen d'une manivelle 7 qui commande l'inclinaison d'un corps à barillet. En lieu et place de la manivelle, il est possible évidemment d'effectuer le réglage par un piston hydraulique ou par un système à entraînement électrique, non représentés. La machine 6 peut être entraînée par un moteur rotatif par exemple un moteur électrique, un moteur diesel, une turbine à gaz ou même par l'intermédiaire d'une transmission appropriée, un moteur à main ou mû par un animal.A rotary pump such as a propeller pump 1 arranged for example at the bottom of a well is coupled to a volumetric machine with fixed displacement 2, for example a barrel machine with fixed inclination per se known. The pump 1 is connected to a discharge conduit 3 which supplies, for example, an irrigation system represented by a channel 4. The volumetric machine 2 is connected by means of flexible conduits 5 resistant to high pressures to a volumetric machine 6 with displacement variable. The displacement of the machine 6 can be modified by means of a crank 7 which controls the inclination of a barrel body. In place of the crank, it is obviously possible to make the adjustment by a hydraulic piston or by an electric drive system, not shown. The machine 6 can be driven by a rotary motor, for example an electric motor, a diesel engine, a gas turbine or even by means of a suitable transmission, a hand-held or animal-driven motor.

Bien que la transmission hydraulique 2, 5, 6 entre le moteur et la pompe 1 consomme un peu d'énergie et fait baisser le rendement global du système, la facilité du réglage de vitesse fait regagner du côté des conditions de fonctionnement les sacrifices consentis du côté rendement. Dans de nombreux cas, la vitesse variable permet d'éviter les coûteuses pertes par fermeture de vanne, inévitables à vitesse fixe.Although the hydraulic transmission 2, 5, 6 between the engine and the pump 1 consumes a little energy and lowers the overall efficiency of the system, the ease of speed adjustment causes the sacrifices made on the efficiency side to regain on the operating conditions side. In many cases, the variable speed avoids the costly losses by closing the valve, which are inevitable at fixed speed.

De plus, l'encombrement du moteur 8 ne présente plus aucun inconvénient étant donné l'encombrement particulièrement faible de la machine 2 accouplée à la pompe. En effet, le moteur 8 peut être disposé à une distance convenable de la pompe, notamment au dessus d'un puits ou sur la berge d'un canal où il est aisé de le placer, de le surveiller et de l'entretenir. A l'endroit du moteur 8 peuvent être disposés, sur un seul châssis commun, en outre les accessoires du circuit hydraulique des machines 2 et 6 tels que réservoir d'huile 9, filtre d'huile, échangeur de refroidissement ainsi que les vannes et autres organes de commande et d'entretien.In addition, the size of the motor 8 no longer has any drawback given the particularly small size of the machine 2 coupled to the pump. Indeed, the motor 8 can be arranged at a suitable distance from the pump, in particular above a well or on the bank of a channel where it is easy to place, monitor and maintain it. At the location of the engine 8 can be arranged, on a single common chassis, in addition the accessories of the hydraulic circuit of the machines 2 and 6 such as oil tank 9, oil filter, cooling exchanger as well as the valves and other control and maintenance devices.

Une seule machine 6 entraînée par un moteur 8 puissant peut être reliée à plusieurs machines 2 chacune accouplée à une pompe.A single machine 6 driven by a powerful motor 8 can be connected to several machines 2 each coupled to a pump.

Lorsque le système fnnctionne avec un moteur à combustion interne, il est indépendant d'un réseau de distribution électrique et peut fonctionner dans des régions arides et désertes avec une surveillance limitée, périodique soit pour l'alimentation du combustible, soit pour le réglage de la vitesse en fonction du niveau du réservoir. Lorsque ce niveau peut changer de façon imprévue, il est possible de prévoir une commande automatique de la vitesse de la pompe.When the system operates with an internal combustion engine, it is independent of an electrical distribution network and can operate in arid and deserted regions with limited, periodic monitoring either for fuel supply or for regulating the speed depending on the tank level. When this level can change unexpectedly, it is possible to provide automatic control of the pump speed.

La figure 2 montre la pompe 1, partiellement en coupe. Elle comprend une roue à aubes 10, montée sur un arbre Il tournant dans des paliers 12 et 13. L'arbre Il est accouplé à la machine volumétrique à cylindrée fixe 2. L'arbre 11 lui-même est maintenu en place par des roulements de butée à l'endroit du palier 13 et est enfermé dans un bulbe 14 entourant aussi l'accouplement 15 avec la machine 2. Le bulbe 14 est maintenu en place et supporté par des nervures antirotation amont 16 et des nervures de diffusion aval 17. Un conduit pratiqué à travers une des nervures 16 permet de lubrifier les roulements à l'endroit du palier 13. Le lubrifiant peut être le liquide hydraulique même. Les aubes de la roue 10 sont réglables lorsque la roue est démontée.Figure 2 shows the pump 1, partially in section. It includes a paddle wheel 10, mounted on a shaft It rotating in bearings 12 and 13. The shaft It is coupled to the volumetric machine with fixed displacement 2. The shaft 11 itself is held in place by bearings stop at the location of the bearing 13 and is enclosed in a bulb 14 also surrounding the coupling 15 with the machine 2. The bulb 14 is held in place and supported by upstream anti-rotation ribs 16 and downstream diffusion ribs 17. A conduit formed through one of the ribs 16 makes it possible to lubricate the bearings at the location of the bearing 13. The lubricant can be the hydraulic fluid itself. The vanes of the wheel 10 are adjustable when the wheel is removed.

Claims (5)

1. Système de pompage dans lequel un moteur (8) entraîne une pompe rotative (1), caractérisé en ce que le moteur (8) est accouplé à une machine volumétrique à cylindrée variable (6), reliée au moyen de conduits hydrauliques (5) à au moins une machine volumétrique à cylindrée fixe (2) accouplée à la pompe rotative (1).1. Pumping system in which a motor (8) drives a rotary pump (1), characterized in that the motor (8) is coupled to a variable displacement volumetric machine (6), connected by means of hydraulic conduits (5 ) at least one volumetric machine with fixed displacement (2) coupled to the rotary pump (1). 2. Système suivant la revendication 1, caractérisé en ce que la machine volumétrique à cylindrée variable (6) est une machine à barillet à inclinaison réglable.2. System according to claim 1, characterized in that the volumetric machine with variable displacement (6) is a barrel machine with adjustable inclination. 3. Système suivant une des revendications 1 ou 2, caractérisé en ce que la machine volumétrique à cylindrée fixe (2) est une machine à barillet à inclinaison fixe.3. System according to one of claims 1 or 2, characterized in that the volumetric machine with fixed displacement (2) is a barrel machine with fixed inclination. 4. Système suivant une des revendications précédentes, caractérisé en ce que le moteur (8), la machine volumétrique à cylindrée variable (6), ainsi que le réservoir de liquide hydraulique (9) et les organes de commande et d'entretien de l'ensemble sont montés sur un châssis commun.4. System according to one of the preceding claims, characterized in that the motor (8), the variable displacement volumetric machine (6), as well as the hydraulic fluid reservoir (9) and the control and maintenance members of the 'are assembled on a common chassis. 5. Système suivant une des revendicatinns précédentes, caractérisé en ce que au moins un des paliers (13) de la pompe est lubrifié par du liquide hydraulique.5. System according to one of the preceding claims, characterized in that at least one of the bearings (13) of the pump is lubricated by hydraulic liquid.
EP81201401A 1981-12-29 1981-12-29 Pumping system Withdrawn EP0082891A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP81201401A EP0082891A1 (en) 1981-12-29 1981-12-29 Pumping system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP81201401A EP0082891A1 (en) 1981-12-29 1981-12-29 Pumping system

Publications (1)

Publication Number Publication Date
EP0082891A1 true EP0082891A1 (en) 1983-07-06

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ID=8188177

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EP81201401A Withdrawn EP0082891A1 (en) 1981-12-29 1981-12-29 Pumping system

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB280260A (en) * 1927-04-12 1927-11-17 Gilbert Cecil Pillinger Improvements in or in connection with pumps
FR1562683A (en) * 1967-05-12 1969-04-04
FR2222550A1 (en) * 1973-03-19 1974-10-18 Hydromatik Gmbh
US3907463A (en) * 1973-07-05 1975-09-23 J Marlin Eller Submersible pumping unit
GB2053324A (en) * 1979-06-21 1981-02-04 Kobe Inc Well pumping system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB280260A (en) * 1927-04-12 1927-11-17 Gilbert Cecil Pillinger Improvements in or in connection with pumps
FR1562683A (en) * 1967-05-12 1969-04-04
FR2222550A1 (en) * 1973-03-19 1974-10-18 Hydromatik Gmbh
US3907463A (en) * 1973-07-05 1975-09-23 J Marlin Eller Submersible pumping unit
GB2053324A (en) * 1979-06-21 1981-02-04 Kobe Inc Well pumping system

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19830218

AK Designated contracting states

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RBV Designated contracting states (corrected)

Designated state(s): AT BE CH DE FR GB IT LI NL SE

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19840717

RIN1 Information on inventor provided before grant (corrected)

Inventor name: PETERS, JEAN-CLAUDE

Inventor name: FABECK, PIERRE-HENRI