EP3004649A1 - Ensemble pompe - Google Patents

Ensemble pompe

Info

Publication number
EP3004649A1
EP3004649A1 EP14726122.6A EP14726122A EP3004649A1 EP 3004649 A1 EP3004649 A1 EP 3004649A1 EP 14726122 A EP14726122 A EP 14726122A EP 3004649 A1 EP3004649 A1 EP 3004649A1
Authority
EP
European Patent Office
Prior art keywords
pump
pump arrangement
arrangement according
housing
impeller
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.)
Granted
Application number
EP14726122.6A
Other languages
German (de)
English (en)
Other versions
EP3004649B1 (fr
Inventor
Patrick Drechsel
Markus Lay
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.)
KSB SE and Co KGaA
Original Assignee
KSB AG
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 KSB AG filed Critical KSB AG
Publication of EP3004649A1 publication Critical patent/EP3004649A1/fr
Application granted granted Critical
Publication of EP3004649B1 publication Critical patent/EP3004649B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • 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
    • 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
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
    • 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
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
    • F04D13/025—Details of the can separating the pump and drive area
    • 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
    • F04D13/021—Units comprising pumps and their driving means containing a coupling
    • F04D13/024—Units comprising pumps and their driving means containing a coupling a magnetic coupling
    • F04D13/026—Details of the bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • 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 invention relates to a pump arrangement, in particular magnetic coupling pump arrangement, with an interior formed by a pump housing of the pump assembly, a split pot which hermetically seals a chamber enclosed by it against the interior formed by the pump housing, an impeller shaft rotatably driven about an axis of rotation arranged at one end of the impeller shaft impeller, arranged at the other end of the impeller shaft inner rotor and cooperating with the inner rotor outer rotor.
  • a pump arrangement is known from DE 10 2004 003 400 A1, which has a drive rotor, which is designed as a common part for external drive elements, to increase the field of application. As a result, however, an increase in the scope is possible only to a certain degree. From a certain size an adjustment of the rotor size is inevitable.
  • the object of the invention is to provide a magnetic coupling pump arrangement in which a large number of magnetic couplings with different diameters is available for a hydraulic variable and as many different hydraulic variables as possible can be used for a magnetic coupling size. Similarly, within a magnetic coupling size, different split wells, i. different pressure levels and / or materials, be usable.
  • the object of the invention is achieved by a split pot with the pump housing or with a component associated with the pump housing, in particular a
  • Housing cover connecting adapter element with a mounting flange, which rests on the side near the interior of a contact surface of the pump housing, in particular the housing cover solved.
  • a modular system is available that enables efficient size design for a hydraulic size with different magnetic coupling sizes or for a magnetic coupling size and different hydraulic sizes.
  • a magnetic coupling size can be adapted to different hydraulic sizes.
  • the large required range of torques required for one and the same hydraulic variable by different speeds, delivery heights, delivery volumes and densities of the medium to be delivered is covered. It is no longer necessary to use the respective maximum coupling size for all combinations, but in each case the suitable magnetic coupling size can be adapted to a hydraulic variable, with corresponding advantages in terms of energy efficiency, eddy current losses and / or acquisition costs.
  • Another advantage of the invention is the reduced number of components to be stored for a pump series.
  • the contact surface has an area set back in the axial direction, into which a centering ring formed on the mounting flange engages, in the recessed area, on the one hand, a sealing ring can be arranged and, on the other hand, the adapter element can be precisely aligned and fluid-tight on the
  • Housing cover attachable.
  • the adapter element has a plurality of threaded holes for fastening the containment shell, it is possible within a magnetic coupling size different gap pots different Druckstu- or strengths and / or different materials to use or exchange.
  • a ring extending further into the interior in the axial direction is provided on the side opposite the mounting flange, which forms an attachment and prevents contact of the outer rotor with the containment shell.
  • the outer contour of the adapter element has a substantially conical shape.
  • the adapter element preferably tapers substantially starting from the mounting flange to the ring.
  • Housing cover facing end of the outer rotor has a radially circumferential projection.
  • the projection is formed on the inside of the ring.
  • the end of the outer rotor pointing in the direction of the housing cover has a region with a reduced outer diameter.
  • a bearing arrangement arranged in operative connection with the impeller shaft rotatably drivable about the rotation axis is arranged between impeller and inner rotor.
  • a spring device is arranged between the inner rotor and the bearing arrangement.
  • the spring device between the spring device and the inner rotor, there is a spacer sleeve which is pushed onto the rotor shaft and by means of which the inner rotor passes deeper into the outer rotor in the axial direction.
  • the magnets of the inner rotor and the magnets of the outer rotor are optimally aligned with each other to ensure optimum power transmission from outer rotor to inner rotor.
  • the object of the invention is further achieved by a modular construction kit for producing a pump arrangement according to the invention.
  • Fig. 1 shows a longitudinal section through a magnetic coupling pump assembly
  • FIG. 2 shows the longitudinal section through the magnetic coupling pump assembly of FIG. 1 with an adapter element according to the invention
  • the 3 shows the longitudinal section through the magnetic coupling pump arrangement according to FIG. 1 with a further adapter element according to the invention
  • FIG. 3 shows the longitudinal section through the magnetic coupling pump arrangement according to FIG. 1 with a further adapter element according to the invention
  • FIG. 4 shows the longitudinal section through a magnetic coupling pump arrangement with a
  • Heat barrier serving the housing cover and an inventive
  • FIG. 1 shows a pump arrangement 1 in the form of a magnetic coupling pump arrangement.
  • the pump arrangement 1 has a multi-part pump housing 2 of a circular sepip including a designed as a spiral housing hydraulic housing 3, a housing cover 4, a bearing support lantern 5, a bearing support 6 and a bearing cap 7.
  • the hydraulic housing 3 has an inlet opening 8 for sucking in a pumped medium and an outlet opening 9 for ejecting the pumped medium.
  • Housing cover 4 is arranged on the inlet opening 8 opposite side of the hydraulic housing 3.
  • the bearing support lantern 5 is attached on the side facing away from the hydraulic housing 3 of the housing cover 4.
  • the bearing carrier 6 is attached to the housing cover 4 opposite side of the bearing support lantern 5.
  • the bearing cap 7 is in turn secured to the side facing away from the bearing support lantern 5 side of the bearing support 6.
  • a split pot 10 is on the side facing away from the hydraulic housing 3 of the
  • the containment shell 10 has a substantially cylindrical body 12.
  • the base body 12 is open at one side and closed at the side opposite the open side by means of a curved bottom 13.
  • a ring-like mounting flange 14 integrally formed with or joined to the body 12 by welding or other suitable fastening means or devices such as screws, rivets or the like.
  • the attachment Flange 14 is located on the inner side 11 near side of a contact surface 15 of the housing cover 4 and has a plurality of mounting holes 16 through which screws 17 feasible and provided in the housing cover 4 threaded holes 18 are screwed.
  • the containment shell 10 hermetically seals a chamber 19 enclosed by it and the housing cover 4 with respect to the interior 11.
  • a rotatable impeller shaft 20 extends from a limited by means of the hydraulic housing 3 and the housing cover 4 flow chamber 21 through an opening provided in the housing cover 4 opening 22 in the chamber 19.
  • Impeller 23 attached, at a lying within the flow chamber 21 shaft end of the impeller shaft 20 is a Impeller 23 attached, at the opposite end of the shaft having two shaft portions 20a, 20b each with increasing diameters, an inner rotor 24 disposed within the chamber 19 is provided.
  • the inner rotor 24 is equipped with a plurality of magnets 25, which are arranged on the side of the inner rotor 24 facing the containment shell 10.
  • a bearing assembly 26 operatively connected to the impeller shaft 20 rotatably driven about the rotation axis A is arranged.
  • a bearing ring carrier 27 arranged coaxially with the axis of rotation A, with which the stationary, i. not to be held in place with the impeller shaft 20 rotating parts of the bearing assembly 26 is located with a flange-like portion 28 on a further abutment surface 29 of the housing cover 4, is fastened by means of a screw, not shown on the housing cover 4 and extends into the Chamber 19.
  • a spring means 30 is arranged in the form of a cup spring assembly and acts on the clamping assembly consisting of impeller 23, the impeller 23rd via a disc 31 to the impeller shaft 20 fastened impeller nut 32, the rotating with the impeller shaft 20 parts of the bearing assembly 26 and inner rotor 24 with a spring force, such that the clamping assembly, in particular via the inner rotor 24, to a certain extent is elastically held in abutment against a contact surface 33, which is formed by the different diameters of the shaft sections 20a and 20b, wherein the diameter of the shaft section 20b is greater than the diameter of the shaft section 20a.
  • the clamping assembly therefore essentially comprises the components rotating with the impeller shaft 20 about the axis of rotation A.
  • An unillustrated drive motor preferably an electric motor, drives a drive shaft 34.
  • the drivable about the axis of rotation A drive shaft 34 is arranged substantially coaxially with the impeller shaft 20.
  • the drive shaft 34 extends through the bearing cap 7, the bearing carrier 6 and at least partially into the bearing support lantern 5.
  • the drive shaft 34 is mounted in two housed in the bearing support 6 ball bearings 35, 36.
  • a plurality of magnets 37-bearing outer rotor 38 is arranged.
  • the magnets 37 are arranged on the side of the outer rotor 38 facing the containment shell 10.
  • FIG. 2 shows a pump arrangement 1 whose external dimensions correspond to the external dimensions shown in FIG.
  • hydraulic housing 3, housing cover 4, bearing support lantern 5, bearing support 6 and bearing cover 7 thus have an equal dimensioning.
  • impeller 23, bearing assembly 26 and bearing ring carrier 27 have a same dimensioning.
  • both the diameter and the axial extension of the containment shell 10, inner rotor 24 and outer rotor 38 are smaller than in the embodiment shown in FIG. 1. This is particularly advantageous when smaller power requirements, such as a lower head or flow rate, with the highest possible efficiency of the pump assembly 1 exist.
  • a separate adapter element 39 is provided, which on one side a mounting flange 40, whose configuration substantially corresponds to the configuration of the mounting flange 14 of the can 10 shown in FIG. 1.
  • the mounting flange 40 abuts against the inner space 11 near side of the contact surface 15 of the housing cover 4 and has a plurality of mounting holes 41, through which the screws 17 can be screwed and screwed into the threaded holes 18 provided in the housing cover 4.
  • the contact surface 15 has an area 42 set back in the axial direction, in which a sealing ring 43 is arranged and in which a mounting flange 40 formed on the centering ring 44 engages, whereby the adapter element 39 is aligned exactly and fluid-tight to the housing cover 4 can be fastened.
  • the adapter element 39 On the side opposite the mounting flange 40, the adapter element 39 has a plurality of threaded holes 45 into which screws 46 extending through the mounting holes 16 in the mounting flange 14 of the can 10 can be screwed. This makes it possible to exchange different gap pots 10 of different pressure levels or strengths and / or different materials within a magnetic coupling size.
  • the mounting flange 40 opposite side extending in the axial direction in the inner space 11 extending ring 47 is provided, which forms a start-up protection and prevents contact of the magnets 37 of the outer rotor 38 on the base body 12 of the split pot 10.
  • the outer contour of the adapter element 39 each have a substantially
  • the adapter element 39 tapers to the ring 47.
  • the inner contour of the adapter element 39 is at least partially tapered.
  • the end of the outer rotor 38 pointing in the direction of the housing cover 4 has a radially encircling projection 48 facing the ring 47; in any case, the inner side of the ring 47 must first be in the case of an outer rotor 38 possibly rotating with an imbalance of the adapter element 39 is touched before the magnets 37 of the outer rotor 38 come into contact with the main body 12 of the split pot 10.
  • the projection 48 may also be formed on the inside of the ring 47.
  • the projection 48 may be formed both at the end of the outer rotor 38 and on the inner side of the ring 47.
  • the impeller shaft 20 spacer sleeve 49 which extends the above-described clamping assembly to this component.
  • the impeller shaft 20, in particular shaft portion 20a extended by the length of the spacer sleeve 49 with respect to the embodiment shown in FIG.
  • the inner rotor 24 moves deeper into the outer rotor 38 in the axial direction.
  • the magnets 25 of the inner rotor 24 and the magnets 37 of the outer rotor 38 are optimally aligned with one another in order to ensure optimum force transmission from the outer rotor 38 to the inner rotor 24 ,
  • FIG. 3 shows a pump arrangement 1 whose external dimensions correspond to the external dimensions shown in FIGS. 1 and 2.
  • impeller 23, bearing assembly 26 and bearing ring carrier 27 have a same dimensioning as in the embodiments shown in FIGS. 1 and 2 on.
  • both diameter and axial extent of containment shell 10, inner rotor 24 and outer rotor 38 have been further reduced with respect to the embodiment shown in FIG. 2.
  • the impeller shaft 20, in particular shaft portion 20a, has the same axial extent as in the embodiment shown in FIG.
  • the pointing in the direction of the housing cover 4 end of the outer rotor 38 has a ring 47 facing the region 50 with reduced outer diameter, with a possibly with an unbalance rotating outer rotor 38 in any case first to the inside of the ring 47 of the adapter element 39 into abutment before the magnets 37 of the outer rotor 38 come into contact with the main body 12 of the split pot 10.
  • the adapter element 39 can also be used on a housing cover 4 designed as a thermal barrier in the case of a pump arrangement 1 carrying a hot medium.
  • the hydraulic housing 3, essential areas of the housing cover 4, bearing support lantern 5, bearing support 6 and bearing cover 7 have the same dimensions as in the embodiments shown in FIGS. 1 to 3. Examples on.
  • the containment shell 10, the adapter element 39 and the outer rotor 38 have the same dimensions according to the magnetic coupling size according to. Fig. 2.

Landscapes

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

Abstract

L'invention concerne un ensemble pompe (1), notamment un ensemble pompe à accouplement magnétique, qui comporte un espace intérieur (11) formé par un carter de pompe (2) de l'ensemble pompe (1), un pot séparateur (10) qui assure l'étanchéité entre une chambre (19), qu'il enveloppe, et l'espace intérieur (11) formé par le carter de pompe (2), un arbre de rotor (20) entraîné en rotation sur un axe de rotation (A), un rotor (23) disposé à une extrémité de l'arbre de rotor (20), un rotor intérieur (24) disposé à l'autre extrémité de l'arbre de rotor (20), et un rotor extérieur (38) qui coopère avec le rotor intérieur (24). Selon l'invention, l'ensemble pompe (1) comporte un élément adaptateur (39), muni d'une bride de montage (40), qui relie le pot séparateur (10) au carter de pompe (2) ou à un composant, notamment un couvercle de carter (4), associé au carter de pompe. Ladite bride de montage s'appuie sur une surface d'appui (15) du carter de pompe (2), notamment du couvercle de carter (4), du côté proche de l'espace intérieur (11).
EP14726122.6A 2013-05-24 2014-05-19 Ensemble pompe Active EP3004649B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013008795.3A DE102013008795B3 (de) 2013-05-24 2013-05-24 Pumpenanordnung
PCT/EP2014/060197 WO2014187761A1 (fr) 2013-05-24 2014-05-19 Ensemble pompe

Publications (2)

Publication Number Publication Date
EP3004649A1 true EP3004649A1 (fr) 2016-04-13
EP3004649B1 EP3004649B1 (fr) 2022-05-11

Family

ID=50792436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14726122.6A Active EP3004649B1 (fr) 2013-05-24 2014-05-19 Ensemble pompe

Country Status (12)

Country Link
US (1) US10385860B2 (fr)
EP (1) EP3004649B1 (fr)
JP (1) JP6491196B2 (fr)
KR (1) KR102125989B1 (fr)
AU (1) AU2014270523C1 (fr)
BR (1) BR112015029322B1 (fr)
DE (1) DE102013008795B3 (fr)
ES (1) ES2922414T3 (fr)
RU (1) RU2670369C2 (fr)
SG (1) SG11201509124PA (fr)
WO (1) WO2014187761A1 (fr)
ZA (1) ZA201508250B (fr)

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SG11201509124PA (en) 2015-12-30
JP2016519252A (ja) 2016-06-30
EP3004649B1 (fr) 2022-05-11
AU2014270523C1 (en) 2017-07-20
CN105431637A (zh) 2016-03-23
ES2922414T3 (es) 2022-09-14
KR102125989B1 (ko) 2020-07-08
KR20160012136A (ko) 2016-02-02
AU2014270523B2 (en) 2017-04-20
WO2014187761A1 (fr) 2014-11-27
AU2014270523A1 (en) 2015-11-26
BR112015029322B1 (pt) 2022-03-08
RU2015148040A (ru) 2017-06-28
ZA201508250B (en) 2017-01-25
DE102013008795B3 (de) 2014-08-21
US20160108923A1 (en) 2016-04-21
RU2670369C2 (ru) 2018-10-22
JP6491196B2 (ja) 2019-03-27
US10385860B2 (en) 2019-08-20
BR112015029322A2 (pt) 2017-07-25

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