EP3336361B1 - Fluid-umwälzpumpe - Google Patents

Fluid-umwälzpumpe Download PDF

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Publication number
EP3336361B1
EP3336361B1 EP17208154.9A EP17208154A EP3336361B1 EP 3336361 B1 EP3336361 B1 EP 3336361B1 EP 17208154 A EP17208154 A EP 17208154A EP 3336361 B1 EP3336361 B1 EP 3336361B1
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EP
European Patent Office
Prior art keywords
sensor
circulation
opening
fluid
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.)
Active
Application number
EP17208154.9A
Other languages
English (en)
French (fr)
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EP3336361A1 (de
Inventor
Laurent Robin
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.)
Wilo Intec SAS
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Wilo Intec SAS
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.)
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Publication date
Application filed by Wilo Intec SAS filed Critical Wilo Intec SAS
Publication of EP3336361A1 publication Critical patent/EP3336361A1/de
Application granted granted Critical
Publication of EP3336361B1 publication Critical patent/EP3336361B1/de
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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
    • F04D13/0686—Mechanical details of the pump control unit
    • 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
    • F04D13/0693—Details or arrangements of the wiring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0088—Testing machines
    • 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • 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
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps

Definitions

  • the present invention relates to a fluid circulation pump intended for a hydraulic installation, as well as a hydraulic installation comprising such a pump. It finds particular application in the fields of heating, ventilation and / or air conditioning of a building.
  • the hydraulic installation equips in particular industrial buildings or individual dwellings.
  • a circulation pump for a heat transfer fluid also called a circulator
  • Such pumps are thus present in domestic hot water installations or in domestic heating installations, whether it is heating with fuel oil, gas, wood, pellets or solar energy.
  • Such installations are carried out at the user's home, directly in the private part of the home or in the common areas of a condominium of the user's home.
  • a fluid circulation pump intended for a hydraulic installation comprising: a pump body comprising a circulation zone arranged to circulate the fluid from a suction opening to a repression; an electric motor comprising a rotor and a stator, and integral with the pump body; an electronic control configured to control the electric motor.
  • the pump comprises a chamber arranged to at least partially house the electrical part of the stator, said zone of circulation and said chamber being separated by a wall so as to prevent the circulation of the fluid in the chamber.
  • one or more sensors are generally installed in the internal environment of the boiler, and in particular some of said sensors can be arranged at the outside the pump body but installed on it, the sensors being electrically connected to the main boiler controller.
  • Such an arrangement of the sensor negatively impacts the compactness of the circulation pump and requires external electrical connectors connecting the sensor (s) to the main boiler controller, which makes it more complex to mount such a sensor for the outlet. for measuring the characteristic physical quantity of the fluid circulating in the hydraulic installation.
  • the senor is liable to be damaged by assembly or maintenance operations of the pump or of the peripheral members.
  • the information provided by the sensor (s) can be used by the main controller of the application and simply by him.
  • the problem posed here is to overcome in particular the above-mentioned drawbacks.
  • the object of the invention is to propose a pump for circulating a fluid intended for a hydraulic installation of greater compactness, which makes it possible to protect the sensor during assembly or maintenance operations of the pump and to minimize the external electrical connectors connecting the sensor and more particularly to reduce the volume occupied by the connector to connect the sensor to its control member.
  • the invention provides a circulation pump as defined in claim 1.
  • the pump comprises at least one sensor connected to the electronic control of the pump and disposed inside the chamber, of so as to make it possible to measure at least one physical quantity characteristic of the fluid circulating in the circulation zone and to transmit the physical quantity measured to the electronic control of the pump.
  • the senor is disposed against the opening.
  • the sensor comprises connection means housed at least partially in the chamber, the sensor being connected to the electronic control of the pump via said connection means.
  • the chamber is delimited radially by a carcass capable of allowing the connection of the stator to the electronic control, said carcass being provided with an opening, the connection means passing through said opening to come to connect to the electronic control of the pump.
  • the electronic control is configured to allow the exchange of information between the sensor, the electric motor, and external control members such as a boiler regulator, by means of a communication bus connecting electronic control of the pump with one or more of said external control members.
  • the senor is configured to sense the temperature and / or the pressure and / or the flow rate of a fluid circulating in the circulation zone.
  • a hydraulic installation comprising one or more channels for circulation of a fluid and comprising a circulation pump according to any one of the embodiments presented in the description, is also disclosed.
  • the hydraulic installation comprises external control members, such as a boiler regulator, and a communication bus connecting the electronic control of the pump with one or more of said external control members, so as to allow the exchange of information between the sensor, the electric motor, and the external control element (s).
  • external control members such as a boiler regulator
  • a communication bus connecting the electronic control of the pump with one or more of said external control members, so as to allow the exchange of information between the sensor, the electric motor, and the external control element (s).
  • a fluid circulation pump is therefore proposed.
  • it is a fluid circulation pump intended for a hydraulic installation, also designated by the expression “hydraulic circulator”.
  • the hydraulic installation conventionally corresponds to a domestic installation of sanitary hot water or heating, that is to say in particular a hydraulic installation installed in a building, such as the home of a user, offices or a factory. It can also be a hydraulic installation aimed ultimately at ventilating or air-conditioning a building.
  • a pump 20 for circulating a fluid intended for a hydraulic installation is illustrated.
  • the circulation pump 20 is provided with an electronic control 22 in the form of a control box controlling the operation of the electric motor 24 of the pump 20.
  • the control box can be integrated with the electric motor 24 or take any other form of electronic control 22.
  • the electric motor 24 is fixed to the pump body, also designated by the expression "hydraulic body”.
  • the Figures 1 and 2 show an exemplary embodiment in which the motor 24, comprising a rotor 24a and a stator 24b, 31, actuates an impeller 28 of the pump 20 arranged in a circulation zone arranged to circulate a fluid from a suction opening towards a discharge opening.
  • the stator 24b, 31 comprises an electrical part, itself comprising in particular a coil 24b and a carcass 31 receiving the coil 24b.
  • the pump comprises a chamber 30 arranged to at least partially house the electrical part 24b of the stator 24b, 31. Radially, this chamber 30 is delimited by the carcass 31 of the stator 24b, 31 which protects the electrical part 24b of this stator 24b, 31 Axially, this chamber 30 is delimited by the box comprising the electronic control 22, and by a wall 32.
  • This wall 32 otherwise designated by the term "flange", makes it possible to separate the circulation zone from the chamber 30 so as to prevent the circulation of the fluid in the chamber 30 which contains the electric coil 24b.
  • a sensor 40 having the function of measuring a physical quantity characteristic of the fluid circulating in the circulation zone, is arranged inside the chamber 30 and connected to the electronic control 22 in order to transmit the physical quantity measured to the control electronic.
  • the pump can also include several sensors 40 each having the function of measuring a physical quantity characteristic of the fluid circulating in the circulation zone, each of these sensors being arranged inside the chamber 30.
  • the pump can also comprise a single sensor device 40, comprising several sensitive elements (for example arranged in the head 42 as shown in the figure 3 and described later with reference to this figure 3 ) each having the function of measuring a physical quantity characteristic of the fluid circulating in the circulation zone.
  • the pump can also comprise a combination of one or more sensors 40 each having the function of measuring a distinct physical quantity, and one or more sensor devices 40 each having the function of measuring several distinct physical quantities.
  • a sensor 40 is called a device capable of measuring a single physical quantity characteristic of the fluid circulating in the circulation zone, and a device capable of measuring several physical quantities characteristic of the fluid circulating in the circulation zone by means of several sensitive elements mounted in this sensor device 40.
  • the wall 32 comprises an opening 34 making the circulation zone communicate with the chamber 30.
  • the arrangement of the sensor 40 opposite the opening 34 thus allows the measurement of the physical quantity characteristic of the fluid circulating in the circulation zone, by bringing the sensor into contact with this fluid circulating through the opening 34.
  • a number of openings 34 corresponding to the number of sensors 40 arranged in the chamber 30 is provided in the wall 34.
  • the sensor 40 makes it possible to measure several distinct physical quantities
  • several distinct openings 34 in the wall 32 can be used opposite the sensor 40. However, only one is sufficient, provided that it allows measurement to be taken by the different sensory elements of sensor 40, of each physical quantity corresponding to each of said sensor elements.
  • FIG 3 shows a block diagram of the arrangement of the sensor 40 near the opening 34 of the wall 32.
  • a sealing element 36 is arranged in order to prevent the flow of the fluid flowing in the circulation zone inside the chamber 30 which contains the electrical part of the stator 24b, 31, a sealing element 36 is arranged.
  • the sensor 40 is arranged opposite the opening 34 and at a distance therefrom so that the sealing element is interposed between the wall 32 and the sensor 40.
  • the sensor 40 is disposed against the opening 34; in this embodiment, the sealing element 36 such as a sealing ring can be disposed against the wall 32 so as to extend along the periphery of the sensor 40 which is in contact with the wall 32.
  • the wall 32 and the sensor 40 are integrally linked.
  • the sealing function is ensured by the connection between the wall 32 and the sensor 40.
  • This connection can for example consist of a weld line continuously joining the sensor 40 to the wall 32.
  • provision may also be made to mold the sensor 40 and the wall 32 in a single piece.
  • the wall 32 has a surface 38 through which the opening 34 extends.
  • This surface 38 is adapted to cooperate with the assembly defined by the sealing element 36 and the sensor 40. More particularly, when the sensor 40 is disposed against the opening 34 and is therefore in contact with the wall 32, the head 42 of the sensor 40 is arranged so as to cooperate with this surface 38. Alternatively, when the sealing element 36 is interposed between the wall 32 and the head 42 of the sensor 40, the sealing element is arranged so as to cooperate with the surface 38.
  • the surface 38 is preferably projecting and projects towards the assembly defined by the sealing element 36 and the sensor 40 and its head 42. This surface 38 must make it possible to ensure sealing by plating the parts.
  • This surface 38 is preferably a stamped surface. Alternatively, the projected shape and defining a projection of the surface 38 can be machined or molded.
  • connection means 44 making it possible to connect the sensor 40 to the electronic control 22 via a connector 45 in order to supply the latter electrically and to transmit the information measured by means of the sensor head 42.
  • connection means 44 are housed in the chamber 30 and pass through the carcass 31.
  • the carcass 31 is adapted in particular to allow the connection of the stator 24b, 31 to the electronic control 22.
  • the carcass 31 includes an opening (not visible in the figures) allowing the passage of the connection means 44 through the carcass 31 in order to allow the connection of the sensor 40 to the electronic control 22.
  • the electronic control 22 comprises a number of connectors, including for example a connector for the electrical supply of the pump 20, connectors for electronic communication of the components external to the pump.
  • these electronic communication connectors of the organs external to the pump 20 is included in particular a communication connector for controlling the pump.
  • This pump control communication connector makes it possible for example to connect the electronic control 22 with a boiler regulator of the hydraulic installation having the capacity to transmit control data, for example as a function of a thermostat of the installation hydraulic.
  • the control data, received by the control communication connector are converted by the electronic control 22 which can in particular integrate a control module in hydraulic reference from which the motor 24 of the pump is controlled, the power being transmitted via a power connector to the motor.
  • the electronic control 22 is configured to allow the exchange of information between the sensor 40, the electric motor 24 and the external control members such as the boiler regulator (otherwise called main boiler controller), by means of a communication bus connecting the electronic control 22 with one or more of said external control members.
  • the boiler regulator otherwise called main boiler controller
  • this information can be transmitted to the boiler regulator via the electronic control 22.
  • This information can also be transmitted to any other member of the external control which has a communication link with the electronic control 22.
  • the use of the above-mentioned communication bus for exchanges between the various external organs of the system is particularly advantageous in that it makes it possible to facilitate the connection between the various organs of the system and to exchange information between the sensor 40 , the motor 24 and various external control members such as the boiler regulator or other actuators.
  • the information picked up by the sensor 40 can be easily transmitted, via the electronic control 20 of the pump and the communication bus, not only to the boiler regulator but also to any other actuator which may need the information. in question, without the need to specifically wire the boiler regulator or any other actuator with the sensor 40.
  • This sensor 40 is preferably configured to capture the temperature and / or the pressure and / or the flow rate of a fluid circulating in the circulation zone.
  • the sensor 40 makes it possible to measure a physical quantity characteristic of the fluid circulating in the circulation zone via a sensitive element situated at the level of the sensor head 42; the sensitive element can be a sensitive element in particular to pressure, temperature or flow.
  • the sensor 40 makes it possible to measure at least one physical quantity characteristic of the fluid circulating in the circulation zone.
  • the head 42 of the sensor 40 will then have a corresponding number of sensitive elements having the capacity to carry out the measurement for each of these different physical quantities.
  • a hydraulic installation comprising one or more channels for circulation of a fluid is also disclosed.
  • This hydraulic installation comprises a circulation pump 20 according to any one of the above-mentioned embodiments.
  • this hydraulic installation comprises the external control members, such as the boiler regulator, the communication bus connecting the electronic control 22 with one or more of the said external control members, so as to allow the exchange of information between the sensor 40, the electric motor 24 and the external control member (s).

Landscapes

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

Claims (9)

  1. Pumpe (20) zum Umwälzen eines Fluids, die für eine hydraulische Anlage bestimmt ist, umfassend:
    - einen Pumpenkörper, umfassend eine Umwälzzone, die so angeordnet ist, dass sie ein Fluid von einer Ansaugöffnung zu einer Abgabeöffnung umwälzt,
    - einen Elektromotor (24), umfassend einen Rotor (24a) und einen Stator (24b, 31), der einen elektrischen Teil (24b) umfasst und fest mit dem Pumpenkörper verbunden ist,
    - eine elektronische Steuerung (22), die zum Steuern des Elektromotors konfiguriert ist,
    - eine Kammer (30), die so angeordnet ist, dass sie den elektrischen Teil (24b) des Stators (24b, 31) mindestens teilweise aufnimmt, wobei die Umwälzzone und die Kammer (30) durch eine Wand (32) getrennt sind, um die Umwälzung des Fluids in der Kammer (30) zu verhindern,
    - mindestens einen Sensor (40), der mit der elektronischen Steuerung (22) verbunden und innerhalb der Kammer (30) angeordnet ist, um zu ermöglichen, mindestens eine physikalische Größe, die für das Fluid, das in der Umwälzzone umgewälzt wird, kennzeichnend ist, zu messen und die gemessene physikalische Größe an die elektronische Steuerung (22) zu übertragen,
    wobei die Kammer (30) radial durch ein Gehäuse (31) begrenzt ist, das geeignet ist, die Verbindung des Stators (24b, 31) mit der elektronischen Steuerung (22) zu ermöglichen, und wobei das Gehäuse (31) mit einer Öffnung versehen ist,
    dadurch gekennzeichnet, dass der Sensor (40) Verbindungsmittel (44) umfasst, die mindestens teilweise in der Kammer (30) aufgenommen sind und die durch die Öffnung hindurchgehen, um eine Verbindung mit der elektronischen Steuerung (22) herzustellen.
  2. Umwälzpumpe (20) nach Anspruch 1, wobei:
    - die Wand (32), die die Kammer (30) trennt, die angeordnet ist, um den elektrischen Teil (24b) des Stators (24b, 31) und die Umwälzzone des Fluids aufzunehmen, eine Öffnung (34) umfasst,
    - der Sensor (40) gegenüber der Öffnung (34) angeordnet ist, um mit einem Fluid in Kontakt zu sein, das aus der Umwälzzone durch die Öffnung (34) strömt,
    - ein Dichtungselement (36) angeordnet ist, um zu verhindern, dass ein Fluid, das durch die Öffnung (34) aus der Umwälzzone strömt, mit dem elektrischen Teil (24b) des Stators (24b, 31) in Kontakt kommt.
  3. Umwälzpumpe (20) nach Anspruch 1, wobei:
    - die Wand (32), die die Kammer (30) trennt, die angeordnet ist, um den elektrischen Teil des Stators (24b, 31) und die Umwälzzone des Fluids aufzunehmen, eine Öffnung (34) umfasst,
    - der Sensor (40) gegenüber der Öffnung (34) angeordnet ist, um mit einem Fluid in Kontakt zu sein, das aus der Umwälzzone durch die Öffnung (34) strömt,
    - die Wand (32) und der Sensor (40) fest miteinander verbunden sind, um zu verhindern, dass ein Fluid, das aus der Umwälzzone durch die Öffnung (34) strömt, mit dem elektrischen Teil (24b) des Stators (24b, 31) in Kontakt kommt.
  4. Umwälzpumpe (20) nach Anspruch 2 oder 3, wobei:
    - der Sensor (40) einen Kopf (42) umfasst,
    - die Wand (32) eine Oberfläche aufweist, durch die sich die Öffnung (34) erstreckt, wobei der Kopf (42) des Sensors (40) und/oder das Dichtungselement (36) angeordnet sind, um mit der Oberfläche zusammenzuwirken.
  5. Umwälzpumpe (20) nach einem der Ansprüche 2 bis 4, wobei der Sensor (40) an der Öffnung (34) angeordnet ist.
  6. Umwälzpumpe (20) nach einem der vorhergehenden Ansprüche, wobei die elektronische Steuerung (22) konfiguriert ist, um den Informationsaustausch zwischen dem Sensor (40), dem Elektromotor (24) und externen Steuerungseinrichtungen, wie etwa einem Kesselregler, mittels eines Kommunikationsbusses zu ermöglichen, der die elektronische Steuerung (22) mit einer oder mehreren der externen Steuerungseinrichtungen verbindet.
  7. Umwälzpumpe (20) nach einem der vorhergehenden Ansprüche, wobei der Sensor (40) konfiguriert ist, um die Temperatur und/oder den Druck und/oder die Flussrate eines in der Umwälzzone strömenden Fluids zu erfassen.
  8. Hydraulische Anlage, umfassend eine oder mehrere Fluidumwälzleitungen, dadurch gekennzeichnet, dass sie eine Umwälzpumpe (20) nach einem der vorhergehenden Ansprüche umfasst.
  9. Hydraulische Anlage nach Anspruch 8, dadurch gekennzeichnet, dass sie externe Steuerungseinrichtungen umfasst, wie etwa einen Kesselregler und einen Kommunikationsbus, der die elektronische Steuerung (22) der Pumpe (20) mit einer oder mehreren der externen Steuerungseinrichtungen verbindet, um den Informationsaustausch zwischen dem Sensor (40), dem Elektromotor (24) und dem oder den externen Steuerungseinrichtungen zu ermöglichen.
EP17208154.9A 2016-12-16 2017-12-18 Fluid-umwälzpumpe Active EP3336361B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1662693A FR3060671B1 (fr) 2016-12-16 2016-12-16 Pompe de circulation d'un fluide

Publications (2)

Publication Number Publication Date
EP3336361A1 EP3336361A1 (de) 2018-06-20
EP3336361B1 true EP3336361B1 (de) 2020-03-18

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Application Number Title Priority Date Filing Date
EP17208154.9A Active EP3336361B1 (de) 2016-12-16 2017-12-18 Fluid-umwälzpumpe

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FR (1) FR3060671B1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1026581B1 (fr) * 2018-08-31 2020-03-31 Safran Aero Boosters Sa Pompe de turbomachine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4327735A1 (de) * 1993-08-18 1995-02-23 Grundfos As Vorrichtung zum Liefern von Flüssigkeit
EP1085210A3 (de) * 1999-09-13 2004-03-31 Siemens Aktiengesellschaft Pumpe mit Temperatursensor im Gehäuse
DE102006027002A1 (de) * 2006-06-08 2007-12-13 Oase Gmbh Pumpemanordnung mit Drehzahlsteuerung
DE102013017975A1 (de) * 2013-11-29 2015-06-03 Fte Automotive Gmbh Elektromotorisch angetriebene Flüssigkeitspumpe, insbesondere zur Zwangsschmierung eines Schaltgetriebes für Kraftfahrzeuge
ITUB201558312U1 (it) * 2015-07-28 2017-01-28 Ind Saleri Italo Spa Gruppo pompa con involucro portante e piatto di supporto

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Publication number Publication date
EP3336361A1 (de) 2018-06-20
FR3060671A1 (fr) 2018-06-22
FR3060671B1 (fr) 2021-01-22

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