EP3299633B1 - Système de pompe de circulateur - Google Patents

Système de pompe de circulateur Download PDF

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Publication number
EP3299633B1
EP3299633B1 EP16190681.3A EP16190681A EP3299633B1 EP 3299633 B1 EP3299633 B1 EP 3299633B1 EP 16190681 A EP16190681 A EP 16190681A EP 3299633 B1 EP3299633 B1 EP 3299633B1
Authority
EP
European Patent Office
Prior art keywords
flange portion
volute
structured
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
EP16190681.3A
Other languages
German (de)
English (en)
Other versions
EP3299633A1 (fr
Inventor
Dario Bedin
Roberto Mondin
Marco Melison
Ozkan Daglioz
Mustafa Pekguzelsu
Yasar Onal
Hasan Cosan Erdogan
Gokhan Konuk
Saim Kirgiz
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DK16190681.3T priority Critical patent/DK3299633T3/da
Priority to EP16190681.3A priority patent/EP3299633B1/fr
Publication of EP3299633A1 publication Critical patent/EP3299633A1/fr
Application granted granted Critical
Publication of EP3299633B1 publication Critical patent/EP3299633B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • F04D29/4273—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps suction eyes
    • 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
    • F04D29/4293—Details of fluid inlet or outlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/51—Inlet
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position

Definitions

  • the present invention relates to a hydraulic connector.
  • the present invention further relates to a circulator pump and a pump system, which comprises a circulator pump and a hydraulic connector.
  • the present invention is directed to a circulator pump system which may be employed in hydronic systems, including both heating and cooling piping systems.
  • the present invention is particularly suitable for application in the field of OEM high efficiency circulator pumps.
  • a circulator pump is a specific type of pump used to circulate gases, liquids, or slurries in a closed circuit.
  • Circulator pumps are commonly employed for circulating water or other fluids in a heating or cooling system, especially of buildings or the like.
  • Circulator pumps are typically designed to provide a limited pressure head to the fluid, as they circulate the fluid only within a closed circuit, and they need to overcome only the friction of the fluid in the piping system.
  • Circulator pumps are usually electrically powered centrifugal pumps, having limited size and power.
  • circulator pumps comprise a sealed main body having a motor rotor, a pump impeller, and support bearings combined and sealed within the water circuit.
  • main pump bodies By providing sealed pump units, or “main pump bodies”, it becomes easier to maintain a water-tight seal at the point where the pump drive shaft enters the volute.
  • Small-sized to medium-sized circulator pumps are usually supported entirely by the pipe flanges that join them to the rest of the piping.
  • Circulator pumps may be fitted with, or associated to, a plurality of further devices and sensors, which complement their functioning.
  • circulator pumps may be associated or provided with pressure sensors, temperature sensors, flow meters, expansion vases, purge valves, safety valves, air separators and the like.
  • a circulator pump is effectively a component of the piping system which is kept in a closed loop, under water-tight conditions.
  • the sealing may be damaged.
  • the water-tight seal of the piping system may be comprised, leading to leakage of fluid.
  • the present invention can be used with a circulator pump, having a circulator pump main body to be mounted on a piping system and which comprises: an impeller; an electric motor for rotating the impeller; a volute defining a volute chamber for housing the impeller; the volute has a central inlet hole for coupling the circulator pump in a releasable manner to a hydraulic connector of the piping system; the volute is further structured with a lateral discharge flange portion for coupling to an outlet portion of the piping system.
  • the circulator pump has a circulator pump main body which comprises: an impeller; an electric motor for rotating the impeller; a volute defining a volute chamber for housing the impeller and providing fluid-tightness in the circulator pump, for a flow of fluid passing through the impeller; a discharge flange portion provided downstream of the impeller and structured for connecting to a piping system in fluid-tight manner.
  • the circulator pump further comprises: a volute flange portion comprising an inlet hole for the flow of fluid entering the volute; such volute flange portion is structured for connecting in a fluid-tight manner to an outlet section of a hydraulic connector, the outlet section comprising an outlet hole for the flow of a fluid; the circulator pump further comprises a mating element provided on the circulator pump main body, wherein the mating element is structured for providing a releasable coupling between the volute flange portion and the outlet section.
  • such circulator pump can be releasably coupled with its volute flange portion to an outlet section of a hydraulic connector, thus simplifying the removal of the pump circulator from the piping system, for maintenance or inspection.
  • the mating element is structured for providing a releasable coupling, between the volute flange portion and the outlet section, so that water-tight conditions in the circuit can be effectively restored.
  • the mating element is provided on the circulator pump main body so that mounting and removal of the circulator pump on the piping system is simplified, even if additional devices are attached to the hydraulic connector.
  • the present invention is particularly suitable for application in the field of OEM high efficiency circulation pumps.
  • the present invention provides for a hydraulic connector for a circulator pump comprising: a hollow pipe body for the flow of a fluid, the hollow pipe body comprising a suction flange portion provided at a first end of the hollow pipe body and structured for connecting to a piping system in a fluid-tight manner, the hollow pipe body further comprising an outlet section provided at a second end of the hollow pipe, the outlet section being structured for connecting to a volute flange portion of a circulator pump in a fluid-tight manner, the outlet section comprising an outlet hole for the flow of said fluid;
  • the hydraulic connector further comprises a connection element provided at the second end and structured for providing a releasable coupling between the outlet section and the volute flange portion;
  • the connection element further comprising a coupling flange portion having a coupling surface structured for mating with a respective mating element of a circulator pump main body; the coupling surface being structured for engaging with at least one releasable retaining element, for coupling of the
  • additional devices or sensors may be associated directly to the hydraulic connector, without limiting access to the circulator pump, so that its removal from the piping system is not hindered.
  • the hydraulic connector comprises a connection element provided at its end which is free from the piping system, thus simplifying the removal of the circulator pump, for maintenance or inspection.
  • connection element is structured for providing a releasable coupling, between the volute flange portion and the outlet section, so that water-tight conditions in the circuit can be effectively restored.
  • a pump system comprising: a circulator pump main body which comprises: an impeller; an electric motor for rotating the impeller; a volute defining a volute chamber for housing the impeller and providing fluid-tightness in the circulator pump for a flow of fluid passing through the impeller.
  • the pump system further comprises: a hollow pipe body for the flow of a fluid to the impeller; a suction flange portion provided at a first end of the hollow pipe and structured for connecting to a piping system in a fluid-tight manner; an outlet section provided at a second end of the hollow pipe, the outlet section comprising an outlet hole for the flow of the fluid; a discharge flange portion provided downstream of the impeller and structured for connecting to a piping system in fluid-tight manner; a volute flange portion for the flow of the fluid entering the volute, the volute flange portion comprising an inlet hole.
  • the outlet section and the volute flange portion are connected in a fluid-tight manner; a mating element is provided on the circulator pump main body; a connection element is provided at the second end; the mating element and the connection element are structured for respectively coupling with each other and for providing a releasable coupling between the volute flange portion and the outlet section.
  • the pump system comprises a circulator pump and a hydraulic connector, which have been already briefly illustrated above and which are releasably connectable by coupling a connection element with a mating element.
  • an advantage of the present invention is to effectively provide a leak-free connection between a circulator pump and a hydraulic connector of a piping system.
  • Figure 1 shows a first perspective view of a pump system 99, including a circulator pump 100 and a hydraulic connector 101.
  • the circulator pump 100 comprises a pump main body 1 housing the components of the pump, which will be further described in more detail.
  • Such pump main body 1 defines a sealed pump unit, which is typically sold as a single part.
  • the circulator pump 100 comprises a volute 2 of containment, which is part of the pump main body 1, and is coupled thereon.
  • the purpose of the volute 2 is housing the impeller of the pump, as it will be further described.
  • the pump main body 1 further comprises, on its external surface, a plurality of connectors 3a and 3b of electrical and electronic type. These connectors 3a and 3b are configured for powering the electric motor of the circulator pump 100 and/or for controlling the operation of the same.
  • the circulator pump 100 is connected to a piping system by means of a hydraulic connector 101. Through the hydraulic connector 101, the working fluid reaches the circulator pump 100 for increase of the pressure head.
  • Figure 2 shows, in a sectional view, the main internal components of the circulator pump 100.
  • the pump main body 1 accommodates an internal electric motor 5, 6, which preferably includes a permanent magnet rotor 5 and a stator 6 with the relevant electrical windings.
  • the stator 6 is preferably of the type with four stator arms forming a two-phase electric motor configuration.
  • the electric motor 5, 6 is of the synchronous type.
  • the skilled in the art will understand that other configurations are also adoptable, for example by employing an asynchronous electric motor.
  • the pump main body 1 further comprises a shaft 7 of the electric motor which is coupled to the rotor 5.
  • the shaft 7 is thus configured for being set into rotation by the electric motor 5, 6.
  • the circulator pump 100 includes suitable support bearings for the rotation of the shaft 7, such as for example rolling elements and thrust bearings adapted to support the forces that occur during circulation of fluid in the pump.
  • the pump main body 1 comprises an impeller 8 which is coupled on the shaft 7 and therefore is adapted to be set in rotation by the electric motor 5, 6, 7.
  • the impeller 8 is housed within a volute chamber 9, which is defined in the inside portion of the volute 2, which is part of the main pump body 1.
  • the volute chamber 9 is structured to provide fluid-tightness for the flow of fluid arriving through the hydraulic connector 101 to the impeller 8 of the circulator pump 100.
  • the shaft 7 passes through a wall that separates the volute chamber 9 from the housing of the motor 5, 6, 7 in the main pump body 1, preferably passing through a hole sealed by a suitable gasket.
  • the impeller 8 is configured for imparting a thrust to the fluid which comes into contact with it, so as to provide a prevalence or pressure head increase to the fluid.
  • the impeller 8 is preferably a centrifugal type impeller.
  • the pump main body 1 further comprises a secondary box 10 which houses electrical and electronic elements, such as an electronic control board 11, meant to supply power and to control the electric motor by cooperation with the electric/electronic connectors 3a and 3b.
  • a secondary box 10 which houses electrical and electronic elements, such as an electronic control board 11, meant to supply power and to control the electric motor by cooperation with the electric/electronic connectors 3a and 3b.
  • Figure 3 shows a perspective view of the pump system 99, seen from a different angle, wherein some elements are more clearly visible.
  • the hydraulic connector 101 which comprises a hollow pipe body 30 having a suction flange portion 31 at a first end, and an outlet section 15 at a second end which connects to the volute 2 of the pump main body 1, as it will be further described.
  • the suction flange portion 31 is structured for connecting to a piping system (not shown) in a fluid- tight manner, so as to supply the fluid to the pump system 99.
  • Figure 4 shows a partly disassembled isometric view of the pump system 99
  • Figure 5 shows a sectioned view of the pump system 99, still partly disassembled.
  • volute 2 defines an inside volute chamber which houses the impeller, so that it is possible for a flow of fluid to reach the impeller 8.
  • the impeller discharges the fluid with increased pressure head into a discharge flange portion 12, which is provided downstream of the impeller 8.
  • the discharge flange portion 12 is structured for connecting to a further piping system (not shown) in a fluid-tight manner.
  • the circulator pump 100 further comprises a volute flange portion 13 on a terminal side of the volute 2, which is directed towards the hydraulic connector 100, in operating conditions.
  • the volute flange portion 13 comprises an inlet hole 14, for the intake of a flow of fluid which enters the volute 2.
  • the inlet hole 14 provides direct access to the volute chamber 9, so that in particular the impeller 8 is directly visible from the outside of the circulator pump main body 1 (although this is scarcely appreciable in Fig. 4 , due to the selected angle of vision which privileges the overall structure of the pump system 99).
  • the volute 2 has an inlet hole 14 which is central, and is structured for coupling the circulator pump 100 in a releasable manner to the hydraulic connector 101 of the piping system.
  • the central inlet hole is aligned with the axis of the impeller 8, and also with the axis of the electric motor 5, 6, 7.
  • the volute 2 is further structured with the lateral discharge flange portion 12 for coupling to an outlet portion of the piping system.
  • the volute flange portion 13 is structured for connecting in a fluid-tight manner to an outlet section 15 (not visible, it will be further described) of the hydraulic connector 101.
  • the outlet section 15 comprises an outlet hole 16 (not visible, it will be further described) for the outflow of a fluid from the hydraulic connector 101 which connects to the piping system.
  • the circulator pump 100 further comprises a mating element 17 provided on the pump main body 1.
  • the mating element 17 is provided on a surface of the volute 9, surrounding the whole pump main body 1 in a plane perpendicular to the shaft 7 of the electric motor.
  • the mating element 17 is structured for providing a releasable coupling between the volute flange portion 13 and the outlet section 15.
  • the mating element 17 is structured for mating with a coupling flange portion 18 of the hydraulic connector 101.
  • the coupling flange portion 18 is configured for mating with the mating element 17, having a matching shape.
  • the mating element 17, by engaging with at least one releasable retaining element 20, is thus structured to releasably couple the volute flange portion 13 of the circulator pump 100, with the outlet section 15 of the hydraulic connector 101.
  • three releasable retaining elements or screw 20 are provided to connect the mating element 17 with the coupling flange portion 18, as it will be further described.
  • the mating element 17 comprises a plurality of engaging elements 21, structured for coupling with the coupling flange portion 18 of the hydraulic connector 101.
  • These engaging elements 21, preferably three engaging elements 21, comprise respective holed portions, each structured for receiving the respective retaining element or screw 20.
  • the mating element 17 is further associated with at least one seal element 22, preferably an O-ring 22, which is interposed between the volute flange portion 13 and the outlet hole 16, so as to improve the fluid-tight connection therein.
  • seal element 22 preferably an O-ring 22 which is interposed between the volute flange portion 13 and the outlet hole 16, so as to improve the fluid-tight connection therein.
  • the discharge flange portion 12 is located, in operating conditions, at a higher level than the level of the volute flange portion 13.
  • discharge flange portion 12 is located above a top surface of the circulator pump main body 1.
  • the hydraulic connector 101 comprises a hollow pipe body 30 for providing a flow of a fluid to the circulator pump 100.
  • the hollow pipe body 30 comprises a suction flange portion 31 provided at a first one of its ends.
  • the suction flange portion 31 is structured for connecting to a piping system (not shown) in a fluid-tight manner, for the intake of fluid to be passed to the circulator pump 100.
  • the hollow pipe body 30 further comprises an outlet section 15 provided at a second one of its ends.
  • the outlet section 15 is structured for connecting to the volute flange portion 13 of the circulator pump 100 in a fluid-tight manner.
  • the outlet section 15 comprises an outlet hole 16 for the flow of the fluid. The flow of said fluid, after passing the outlet hole 16, enters the inlet hole 14 of the volute flange portion 13 of the volute 2.
  • the hydraulic connector 101 further comprises a connection element 32 provided at its second end.
  • the connection element 32 is structured for providing a releasable coupling between the outlet section 15 and the volute flange portion 13.
  • connection element 32 comprises the coupling flange portion 18, which is structured for mating with a respective surface of the mating element 17 of the circulator pump 100 main body, as already described.
  • the coupling flange portion 18 comprises a coupling surface 19 for mating with at the mating element 17; the coupling surface 19 is structured for engaging with at least one releasable retaining element 20, preferably with three screws 20, for coupling of the outlet section 15 with the volute flange portion 13.
  • connection element 32 comprises a semi-shell-like shaped coupling body, which defines the coupling flange portion 18.
  • the coupling surface on the semi-shell-like shaped body is structured for engaging with engaging elements 21 provided on a surface of the mating element 17 of the circulator pump 100.
  • the coupling surface 19 comprises at least one, preferably three, threaded portions 19, structured for receiving a respective releasable retaining element 20, said releasable retaining element being each screw 20.
  • the hydraulic connector 101 further comprises at least one seal element 22, preferably an O-ring 22, which is interposed between the outlet hole 16 and the volute flange portion 13, so as to improve the fluid-tight connection therein.
  • seal element 22 preferably an O-ring 22 which is interposed between the outlet hole 16 and the volute flange portion 13, so as to improve the fluid-tight connection therein.
  • the hollow pipe body 30 further comprises at least a first auxiliary opening 33 structured for connecting to an expansion vase (not shown), by providing fluid connection thereto.
  • the expansion vase is an effective component in the piping system, which is advantageously located close to the pump system 99.
  • the first auxiliary opening 33 is located, in operating conditions, at a higher level than the level of the outlet hole 16. More preferably, the first auxiliary opening 33 is connected to a first auxiliary channel 34 located at the second end of the hollow pipe body 30.
  • the hollow pipe body 30 further comprises at least a second auxiliary opening 35 structured for connecting to a valve (not shown), in particular to a safety valve, by providing fluid connection therein.
  • the safety valve is an effective component in the piping system, which is advantageously located close to the pump system 99.
  • the second auxiliary opening 35 is located, in operating conditions, at a lower level than the level of the suction flange portion 31.
  • the second auxiliary opening 35 is preferably connected to a second auxiliary channel 36 located at a first end of the hollow pipe body 30.
  • the pump system 99 comprises the impeller 8, the electric motor 5, 6, 7 for rotating the impeller 8, a volute 2 defining a volute chamber 9 for housing the impeller 8 and for providing fluid-tightness in the circulator pump main body 1, for a flow of fluid passing through the impeller 8.
  • a hollow pipe body 30 brings a fluid flow to the impeller 8.
  • a suction flange portion 31 is provided at a first end of the hollow pipe 30 and is structured for connecting to a piping system (not shown) in a fluid-tight manner.
  • An outlet section 15 is provided at a second end of the hollow pipe 30, and comprises an outlet hole 16 for the flow of the fluid.
  • a discharge flange portion 12 is provided downstream of the impeller 8 and is structured for connecting to a piping system (not shown) in a fluid-tight manner.
  • a volute flange portion 13 allows the fluid, coming from the outlet section 15, to enter the volute 2 by means of an inlet hole 14.
  • the outlet section 15 and the volute flange portion 13 are connected in a fluid-tight manner.
  • a connection element 32 is provided at the second end of the hollow pipe body 30.
  • a mating element 17 is provided on the circulator pump main body 1.
  • connection element 32 and the mating element 17 are structured for respectively coupling with each other, and for providing a releasable coupling between the volute flange portion 13 and the outlet section 15.
  • Figure 6 shows a perspective view of a pump system, 99' according to an embodiment of the present invention.
  • the pump system 99' comprises a circulator pump 100, as already described.
  • the pump system 99' also comprises a hydraulic connector 201 according to the invention.
  • the hydraulic connector 201 provides for a different connection element, which provides a releasable coupling between its outlet section and the volute flange portion 13 of the already described circulator pump 100.
  • Figure 7 shows a partly disassembled view of the pump system 99', comprising the hydraulic connector 201.
  • Figure 8 shows yet a different view of the pump system 99', so as to visualize all its elements.
  • the mating element 17 comprises a circular shaped coupling body on the volute flange portion 13. In this embodiment, it is the circular shaped coupling body which is structured to engage with the outlet section 51 of the hydraulic connector 201.
  • the circular shaped periphery of the volute flange portion 13 is structured for interacting with a retaining element 52 being a resilient fixing clip.
  • the resilient fixing clip 52 cooperates with respective slots 53.
  • the releasable retaining element 52 acts on the circular shaped periphery of the volute flange portion 13, so as to retain the elements and provide a coupling with the outlet section 51.
  • connection element 32' comprises a circular shaped coupling body on the outlet section 51, which is configured for mating with the respective mating element 17, which also comprises a circular shaped coupling body on the volute flange portion 13.
  • the circular shaped coupling body of the connection element 32' is structured for engaging with the volute flange portion 13 and comprises preferably four peripheral slots 53 for receiving the releasable retaining element 52.
  • the releasable retaining element 52 is a fixing clip structured for acting on the periphery of the circular shaped volute flange portion 13.

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

Claims (12)

  1. Raccord hydraulique (201) pour une pompe de circulation (100), comprenant :
    un corps formant conduit creux (30) pour l'écoulement d'un fluide,
    ledit corps formant conduit creux (30) comprenant une partie bride d'aspiration (31) placée à une première extrémité dudit corps formant conduit creux (30) et structurée pour un raccordement à une tuyauterie de manière étanche,
    ledit corps formant conduit creux (30) comprenant, en outre, une section de sortie (51) placée à une seconde extrémité dudit corps formant conduit creux (30), ladite section de sortie (51) étant structurée pour un raccordement à une partie bride de volute (13) d'une pompe de circulation (100) de manière étanche, ladite section de sortie (51) comprenant un orifice de sortie (16) pour l'écoulement dudit fluide,
    ledit raccord hydraulique (201) comprenant, en outre, un élément de raccordement (32'), ledit élément de raccordement (32') étant placé au niveau de ladite seconde extrémité et étant structuré pour assurer un accouplement libérable entre ladite section de sortie (51) et ladite partie bride de volute (13),
    ledit élément de raccordement (32') comprenant, en outre, une partie bride d'accouplement (18) comportant une surface d'accouplement (19) structurée pour un assemblage avec un élément d'assemblage (17) respectif d'un corps principal (1) de pompe de circulation,
    ladite surface d'accouplement (19) étant structurée pour une mise en prise avec au moins un élément de retenue libérable (52), pour l'accouplement de ladite section de sortie (15) avec ladite partie bride de volute (13),
    caractérisé en ce que ledit élément de raccordement (32') comprend un corps d'accouplement de forme circulaire sur ladite section de sortie (51), ledit corps d'accouplement de forme circulaire étant structuré pour une mise en prise avec une partie bride de volute (13) d'un corps principal (1) de pompe de circulation,
    ledit corps d'accouplement de forme circulaire comprenant une pluralité de, de préférence quatre, fentes périphériques (53) destinées à recevoir l'élément de retenue libérable (52), ledit élément de retenue libérable (52) étant une agrafe de fixation élastique (52) structurée pour agir sur la périphérie de ladite partie bride de volute (13).
  2. Raccord hydraulique (201) selon la revendication 1, comprenant, en outre, au moins un élément d'étanchéité (22), de préférence un joint torique (22), qui est interposé entre ledit orifice de sortie (16) de ladite section de sortie (51) et ladite partie bride de volute (13), ledit élément d'étanchéité (22) étant structuré pour améliorer ledit raccordement étanche entre ceux-ci.
  3. Raccord hydraulique (201) selon l'une ou l'autre des revendications 1 et 2, dans lequel ledit corps formant conduit creux (30) comprend, en outre, au moins une première ouverture auxiliaire (33) structurée pour un raccordement à un vase d'expansion, en assurant un raccordement fluidique avec celui-ci, ladite première ouverture auxiliaire (33) étant située, dans des conditions de fonctionnement, à un niveau plus élevé que le niveau dudit orifice de sortie (16), ladite première ouverture de sortie (33) étant, de préférence, raccordée à un premier canal auxiliaire (34) situé au niveau de ladite seconde extrémité dudit corps formant conduit creux (30).
  4. Raccord hydraulique (201) selon l'une quelconque des revendications 1 à 3, dans lequel ledit corps formant conduit creux (30) comprend, en outre, au moins une seconde ouverture auxiliaire (35) structurée pour un raccordement à une vanne, en particulier une soupape de sûreté, en assurant un raccordement fluidique avec celle-ci, ladite seconde ouverture auxiliaire (35) étant située, dans des conditions de fonctionnement, à un niveau moins élevé que le niveau de ladite partie bride d'aspiration (31), ladite seconde ouverture auxiliaire (35) étant, de préférence, raccordée à un second canal auxiliaire (36) situé au niveau de ladite première extrémité dudit corps formant conduit creux (30).
  5. Système de pompe (99') comprenant :
    une pompe de circulation (100), comportant un corps principal (1) de pompe de circulation destiné à être installé sur une tuyauterie et comprenant : une roue (8) ; un moteur électrique (5, 6, 7) pour mettre ladite roue en rotation ; une volute (2) définissant une chambre de volute (9) pour loger ladite roue (8) ; et
    un raccord hydraulique (201) selon l'une quelconque des revendications 1 à 4,
    dans lequel ladite volute (2) comporte un orifice d'entrée central (14) pour l'accouplement de ladite pompe de circulation (100), de manière libérable, au raccord hydraulique (201), ladite volute (2) étant, en outre, structurée avec une partie bride de refoulement latérale (12) pour l'accouplement à une partie de sortie de ladite tuyauterie,
    dans lequel ladite volute (2) définit une chambre de volute (9) pour assurer l'étanchéité dans ledit corps principal (1) de pompe de circulation pour un écoulement de fluide traversant ladite roue (8) ;
    dans lequel ladite partie bride de refoulement (12) est placée en aval de ladite roue (8) et est structurée pour un raccordement à ladite tuyauterie de manière étanche ;
    dans lequel ladite pompe de circulation (100) comprend, en outre :
    une partie bride de volute (13) comprenant ledit orifice d'entrée (14) pour l'écoulement dudit fluide entrant dans ladite volute (2),
    ladite partie bride de volute (13) étant structurée pour un raccordement, de manière étanche, à la section de sortie (51) dudit raccord hydraulique (201) ;
    dans lequel ladite pompe de circulation (100) comprend, en outre, un élément d'assemblage (17) placé sur ledit corps principal (1) de pompe de circulation,
    ledit élément d'assemblage (17) étant structuré pour assurer un accouplement libérable entre ladite partie bride de volute (13) et ladite section de sortie (51),
    dans lequel ledit élément d'assemblage (17) est structuré pour un assemblage avec une partie bride d'accouplement (18) dudit raccord hydraulique (201), par une mise en prise avec l'au moins un élément de retenue libérable (52), pour accoupler, de manière libérable, ladite partie bride de volute (13) avec ladite section de sortie (51),
    caractérisé en ce que ledit élément d'assemblage (17) comprend un corps d'accouplement de forme circulaire sur ladite partie bride de volute (13) structuré pour une mise en prise avec ladite section de sortie (51) dudit raccord hydraulique (201),
    dans lequel la périphérie de forme circulaire de ladite partie bride de volute (13) est structurée pour une interaction avec ledit élément de retenue libérable (52) qui comprend une agrafe de fixation élastique (52) structurée pour une coopération avec des fentes (53) respectives.
  6. Système de pompe (99') selon la revendication 5, dans lequel
    ledit orifice d'entrée (14) de ladite partie bride de volute (13) donne un accès direct à ladite chambre de volute (9), ladite roue (8) étant, de préférence, visible de l'extérieur dudit corps principal (1) de pompe de circulation.
  7. Système de pompe (99') selon l'une ou l'autre des revendications 5 et 6, dans lequel
    ledit élément d'assemblage (17) est placé sur au moins une surface de ladite volute (2) dudit corps principal (1) de pompe de circulation.
  8. Système de pompe (99') selon l'une quelconque des revendications 5 à 7, dans lequel
    ledit élément d'assemblage (17) est associé, en outre, à au moins un élément d'étanchéité (22), de préférence un joint torique (22), qui est interposé entre ladite partie bride de volute (13) et ledit orifice de sortie (16), ledit au moins un élément d'étanchéité (22) étant structuré pour améliorer ledit raccordement étanche.
  9. Système de pompe (99') selon l'une quelconque des revendications 5 à 8, dans lequel
    ladite partie bride de refoulement (12) est située, dans des conditions de fonctionnement, à un niveau plus élevé que le niveau de ladite partie bride de volute (13), de préférence au-dessus d'une surface supérieure du corps principal (1) de pompe de circulation.
  10. Système de pompe (99') selon l'une quelconque des revendications 5 à 9, dans lequel
    ladite roue (8) est du type centrifuge.
  11. Système de pompe (99') selon l'une quelconque des revendications 5 à 10, dans lequel
    ledit moteur électrique (5, 6, 7) est du type synchrone.
  12. Tuyauterie, de préférence, dans un système de chauffage et/ou de refroidissement, comprenant un système de pompe (99') selon l'une quelconque des revendications 5 à 11.
EP16190681.3A 2016-09-26 2016-09-26 Système de pompe de circulateur Active EP3299633B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK16190681.3T DK3299633T3 (da) 2016-09-26 2016-09-26 Cirkulationspumpesystem
EP16190681.3A EP3299633B1 (fr) 2016-09-26 2016-09-26 Système de pompe de circulateur

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Application Number Priority Date Filing Date Title
EP16190681.3A EP3299633B1 (fr) 2016-09-26 2016-09-26 Système de pompe de circulateur

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EP3299633A1 EP3299633A1 (fr) 2018-03-28
EP3299633B1 true EP3299633B1 (fr) 2022-12-28

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EP (1) EP3299633B1 (fr)
DK (1) DK3299633T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113028636A (zh) * 2019-12-24 2021-06-25 宁波奥克斯电气股份有限公司 一种蜗壳支撑架及座吊机
DE102020130554B3 (de) 2020-11-19 2022-04-28 Nidec Gpm Gmbh Adaptergehäuse

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2930602A1 (fr) * 2008-04-28 2009-10-30 Gatech Sarl Pompe hydraulique a raccord a rotule spherique
DE102009042620A1 (de) * 2009-09-23 2011-08-18 KSB Aktiengesellschaft, 67227 Adapter sowie Pumpenanlage
DE102013009451A1 (de) * 2013-06-06 2014-12-11 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Elektrische Kühlmittelpumpe
DE202013007645U1 (de) * 2013-08-27 2014-11-28 Speck Pumpen Verkaufsgesellschaft Gmbh Modulare Förderpumpe für fluide Medien

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DK3299633T3 (da) 2023-03-13

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