EP2292932A2 - Pot d'écartement - Google Patents

Pot d'écartement Download PDF

Info

Publication number
EP2292932A2
EP2292932A2 EP10168522A EP10168522A EP2292932A2 EP 2292932 A2 EP2292932 A2 EP 2292932A2 EP 10168522 A EP10168522 A EP 10168522A EP 10168522 A EP10168522 A EP 10168522A EP 2292932 A2 EP2292932 A2 EP 2292932A2
Authority
EP
European Patent Office
Prior art keywords
end piece
fastening element
connection geometry
shell
face
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
EP10168522A
Other languages
German (de)
English (en)
Other versions
EP2292932B1 (fr
EP2292932A3 (fr
Inventor
Alexander Gatzka
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 EP2292932A2 publication Critical patent/EP2292932A2/fr
Publication of EP2292932A3 publication Critical patent/EP2292932A3/fr
Application granted granted Critical
Publication of EP2292932B1 publication Critical patent/EP2292932B1/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
    • 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
    • F04D13/0606—Canned motor pumps
    • F04D13/0626—Details of the can

Definitions

  • the present invention relates to a containment shell with a primary shell, in particular a containment shell for a canned aggregate, wherein the primary shell has a cylindrical, non-metallic base body and a connection geometry located at one end of the primary shell.
  • a separating sleeve of a multi-part split pot or canned construction wherein openings of the separating sleeve sealingly rest against holding parts and fastening and sealing means sealingly connect the parts of the split pot or canned tube construction.
  • the separating sleeve is as a pipe section formed in a winding technique, fiber reinforced multilayer pipe.
  • the EP 0 822 641 B1 relates to a canned motor in which a sleeve between the stator and rotor is provided, to which an end plate made of the same material is welded.
  • the DE 36 26 934 A1 discloses a can for a permanent magnetic coupling, in which the gap tube, at least in the region of the magnetic field acting between the drive magnet consists of an inner metal tube and a metal tube supporting the cover of an electrically non-conductive material.
  • the DE 38 23 113 C1 relates to a method for producing a split pot for fiber composite electric or magnetic drive units with a connecting flange and a flattened curved bottom, which is reinforced relative to the cylindrical part of the split pot.
  • the jacket of the can is wound from layers of circumferential and helix windings.
  • the DE 39 16 916 A1 discloses a device for fluid-tight connection of a tube with a flange sleeve or a flanged tube, wherein a sealing ring is provided with a conically tapered surface which is arranged in the interior of an angle ring.
  • the DE 38 18 832 C2 describes a containment shell for glandless electrical or magnetic drive units, the containment shell having a jacket consisting of layers of fiber reinforced plastic, and the bottom part of the containment shell has a cup-shaped shape with a tongue-shaped edge extending in the axial direction towards the gap pot interior and has a press fit glued into the coat.
  • the EP 1 606 543 B1 relates to a universal vacuum coupling for a cylindrical receiving part, wherein the cylindrical receiving part ends with a recess and wherein an interface ring has a protruding part to facilitate the positioning of the interface ring with respect to the receiving part.
  • a containment shell with the features of claim 1. Thereafter, it is provided that a containment shell is provided with a primary shell, wherein the primary shell has a cylindrical, non-metallic base body and located at one end of the primary shell connection geometry. It is further provided that the connection geometry extends inwardly in the form of a collar and has two end surfaces extending substantially parallel to each other and substantially perpendicular to the longitudinal axis of the primary shell.
  • the containment shell may be a containment shell for a canned aggregate, such as a pump driven by an electric motor, a magnetic, hysteresis, or the like.
  • the end faces are parallel to one another and perpendicular to the longitudinal axis of the primary shell, taking into account the customary tolerances.
  • connection geometry can be connected to a closure piece, which represents the end face of the split pan bottom which extends substantially perpendicular to the longitudinal axis of the primary shell, wherein the end piece has an outer diameter which is smaller than the inner diameter of the primary shell, the end piece preferably being a inside end piece and is particularly advantageous concave, convex, plan or bottle bottom-shaped.
  • the end piece thus advantageously overlapped by the connection geometry, so that the pressure acting in the interior of the gap pot during operation presses the end piece against the connection geometry.
  • the material of the primary shell is plastic or fiber-reinforced plastic or carbon fiber reinforced plastic or a ceramic. This results in the advantage that in the primary shell, which is located between a stator and a rotor, no eddy currents are induced during operation, which can have a negative effect on the efficiency of the unit and can further lead to undesirable heating.
  • connection geometry is an inner end face into which a sealing element is receivable or to which a sealing element can be pressed, wherein by means of the sealing element tightness between connection geometry and end piece can be produced, wherein preferably the sealing element between the inner end face and the end piece can be pressed in and / or is inserted in an end piece mounted in the annular groove. Since, during operation, the internal pressure in the containment shell pushes the closure piece outwards against the connection geometry, it is advantageously a self-reinforcing seal.
  • connection geometry is an outer end face on which an outer fastening element can be fastened, wherein the fastening element is preferably annular or disk-shaped.
  • the fastening element has an angled cylindrically extending guide surface which engages over the primary shell.
  • the fastening element has a conically extending guide surface, which rests on a corresponding conical surface of the connection geometry, wherein it is preferably at the conical surface of the connection geometry is a chamfering of the outer edge of the connection geometry.
  • a sealing element is provided between the outer fastening element and the outer end face of the connection geometry, wherein by means of the sealing element tightness between connection geometry and fastening element can be produced, wherein preferably the sealing element between the outer end face and the fastening element can be pressed and / or in a Fastener mounted ring groove is used.
  • the inner end piece and the outer fastening element are connected to each other.
  • connection between the inner end piece and the outer fastening element is made detachable, wherein preferably the releasable connection has a central fastening element or a plurality of connecting elements.
  • a further embodiment may consist in that the connection between the inner end piece and the outer fastening element is made insoluble.
  • the fastener is designed disc-shaped, wherein between the inner end piece and external fastener a space is formed which is filled with a heat-insulating material and / or that one or more measuring elements are provided in the space, wherein the / the measuring elements are preferably arranged on the end piece.
  • the measuring element is a measuring element for temperature measurement and / or leakage monitoring and / or is a measuring element by means of which the state of axial plain bearings is monitored, which are medium and / or directly in communication with the containment shell, and / or a measuring element by means of which the pressure load of the end piece can be determined.
  • the fastening element is designed annular, wherein one or more measuring elements are provided on the outer surface of the inner end piece.
  • the measuring element is a measuring element for temperature measurement and / or leakage monitoring and / or is a measuring element by means of which the state of axial plain bearings is monitored, which are medium and / or directly in communication with the containment shell, and / or a measuring element by means of which the pressure load of the end piece can be determined.
  • the measuring element measures the distance of the inner magnetic ring.
  • For determining the pressure load of the end piece may be a conventional pressure sensor, it may just as well be provided that the measurement of the distance between the end piece and the fastening element and / or the deformation of the end piece by means of this measuring element.
  • Fig. 1 shows a schematic sectional view of a split pot 10 according to the invention, wherein alternative embodiments are indicated by primed reference numerals.
  • the containment shell 10 with its longitudinal axis X which is arranged perpendicularly here only for reasons of simplification, has a cylindrical, nonmetallic primary shell 20, which is preferably made of ceramic.
  • the primary shell 20 has, in the end region of its main body 21, a connection geometry 22 which extends in a collar-shaped manner inwards towards the longitudinal axis X of the can 10 and which has two end surfaces 24, 26 extending parallel to one another and perpendicular to the longitudinal axis.
  • one end face 24 is an inner end face 24 and the other end face 26 is an outer end face 26.
  • connection geometry 22 can be connected to a closure piece 30, 30 ', which represents the end face of the containment shell 10 that runs perpendicular to the longitudinal axis X of the primary shell 20.
  • the end piece 30, 30 ' on an outer diameter which is smaller than the inner diameter of the primary shell 20, wherein the end piece 30, 30' is formed flat.
  • a sealing element 34 designed as a circumferential sealing ring 34 is pressed between the inner end face 24 and the outer surface of the end piece 30, so that the end piece 30 and the connection geometry 22 are sealingly connected.
  • a peripheral annular groove 32' is additionally provided for the sealing element 34 designed as a circumferential sealing ring 34.
  • a fastening element 40, 40 ' are fixed, wherein a first embodiment of the fastening element 40 is disk-shaped and an alternative second embodiment of the fastening element 40' is annular.
  • a sealing element 42 designed as a circumferential sealing ring 42 is pressed in a sealing manner.
  • a circumferential annular groove not shown, is provided either in the outer end face 26 or in the fastening element 40, 40 'into which the sealing element 42 is inserted.
  • a space 50 is formed between the fastening element 40 and the end piece 30 or 30 'and is filled with a heat-insulating material 60. Further, a plurality of measuring elements 70 are provided in the space, the measuring elements 70 a measuring element 72 for temperature measurement, another measuring element 74 for leakage monitoring, a measuring element 76 for monitoring the state of at least one axial slide bearing, not shown, and a measuring element 78 for determining the pressure load of End piece 30, 30 'include.
  • the heat-insulating material 60 may be arranged wholly or partly on the connecting piece 30, 30'. Likewise, it may also be partially on the annular fastener 40 'be attached. This depends on the properties of the material with respect to the fluid to be sealed. However, the measuring elements 70 are arranged at the same location and functionally identical on the outside of the end piece 30, 30 '.
  • FIGS. 2 and 3 show alternative embodiments of in Fig. 1 shown embodiments of a split pot 10 according to the invention.
  • the same or comparable features and / or components of the split pot are provided with the same reference numerals.
  • the fastening element 140, 140 ' is modified in such a way that it has a collar-shaped, angled, cylindrical guide surface 144, 144', which engages over the primary shell 20.
  • the fastening element 140, 140 ' may be designed as a disk-shaped fastening element 140 or as an annular fastening element 140'.
  • Fig. 2 shown embodiments of the split pot 10 moreover, have the features of in Fig. 1 shown embodiments of a split pot 10.
  • connection geometry 222 of the primary shell 220.
  • the primary shell 220 like the primary shell 20 described above, has a cylindrical base body 221 and is formed of ceramic.
  • the connection geometry 222 has two end faces 224 and 226, which are aligned parallel to each other and perpendicular to the longitudinal axis X of the primary shell.
  • the fastening element 240, 240 ' may be designed as a disk-shaped fastening element 240 or as an annular fastening element 240'.
  • the Fig. 2 shown embodiments of the split pot 10 moreover, have the features of in Fig. 1 shown embodiments of a split pot 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasket Seals (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
EP10168522.0A 2009-07-15 2010-07-06 Pot d'écartement Active EP2292932B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009033111A DE102009033111A1 (de) 2009-07-15 2009-07-15 Spalttopf

Publications (3)

Publication Number Publication Date
EP2292932A2 true EP2292932A2 (fr) 2011-03-09
EP2292932A3 EP2292932A3 (fr) 2012-10-10
EP2292932B1 EP2292932B1 (fr) 2021-03-31

Family

ID=42676813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10168522.0A Active EP2292932B1 (fr) 2009-07-15 2010-07-06 Pot d'écartement

Country Status (2)

Country Link
EP (1) EP2292932B1 (fr)
DE (1) DE102009033111A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3078115A1 (fr) * 2018-02-22 2019-08-23 Wilo Intec Pompe de circulation d'un fluide avec mesure de pression non intrusive
EP4008908A1 (fr) * 2020-12-02 2022-06-08 Zi Yi Electrical Engineering Co., Ltd. Pompe à rotor noyé avec capteur de fuite

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202017005477U1 (de) 2017-10-24 2017-11-20 Ralph Funck Spalttopf
DE102019002392A1 (de) 2019-04-02 2020-10-08 KSB SE & Co. KGaA Wärmesperre

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3626934A1 (de) 1986-08-08 1988-02-11 Klein Schanzlin & Becker Ag Spaltrohr fuer eine permanentmagnetische kupplung
DE3823113C1 (fr) 1988-07-08 1989-08-10 Uranit Gmbh, 5170 Juelich, De
DE3818832C2 (fr) 1988-06-03 1990-05-03 Uranit Gmbh, 5170 Juelich, De
DE3916916A1 (de) 1989-05-24 1990-11-29 Abs Pumpen Ag Vorrichtung zur fluessigkeitsdichten verbindung eines rohres mit einer flanschmuffe oder einem flanschrohr
DE10322465A1 (de) 2003-05-16 2004-12-02 Ksb Aktiengesellschaft Trennhülse
EP0822641B1 (fr) 1996-07-30 2009-01-21 Ebara Corporation Moteur à manchon d'entrefer
EP1606543B1 (fr) 2003-03-25 2009-04-15 Bekaert Advanced Coatings Raccord a vide universel pour une cible cylindrique

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB557926A (en) * 1942-09-24 1943-12-10 Serck Radiators Ltd Improvements relating to joints for fluid containers, pipes and the like
DE1951766U (de) * 1966-07-30 1966-12-15 Mannesmann Ag Rohrkupplung fuer regnerleitungen aus kunststoff.
DE3337086C2 (de) * 1983-10-12 1993-12-23 Hermann Kraemer Kreiselpumpe mit Spaltrohr-Magnetkupplungsantrieb
DE3712459A1 (de) * 1987-04-11 1988-10-27 Klaus Union Armaturen Magnetischer pumpenantrieb
JPH083191Y2 (ja) * 1989-02-17 1996-01-29 株式会社安川電機 キャンドモータ
US5308229A (en) * 1992-06-03 1994-05-03 Pmc Liquiflo Equipment Company Pump having an internal gas pump
DE19819690A1 (de) * 1998-05-02 1999-11-04 Wilo Gmbh Kreiselmotorpumpe mit Entlüftungsschraube
DE20007099U1 (de) * 1999-05-06 2000-09-28 H. Wernert & Co. oHG, 45476 Mülheim Kreiselpumpe
DE10201942A1 (de) * 2002-01-19 2003-07-31 Wilo Gmbh Temperaturfühler im Zentrum
PL1768233T3 (pl) * 2005-09-24 2010-12-31 Grundfos Management As Rura szczelinowa
EP2072827B1 (fr) * 2007-12-17 2017-06-28 Grundfos Management A/S Pompe avec moteur à manchon d'entrefer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3626934A1 (de) 1986-08-08 1988-02-11 Klein Schanzlin & Becker Ag Spaltrohr fuer eine permanentmagnetische kupplung
DE3818832C2 (fr) 1988-06-03 1990-05-03 Uranit Gmbh, 5170 Juelich, De
DE3823113C1 (fr) 1988-07-08 1989-08-10 Uranit Gmbh, 5170 Juelich, De
DE3916916A1 (de) 1989-05-24 1990-11-29 Abs Pumpen Ag Vorrichtung zur fluessigkeitsdichten verbindung eines rohres mit einer flanschmuffe oder einem flanschrohr
EP0822641B1 (fr) 1996-07-30 2009-01-21 Ebara Corporation Moteur à manchon d'entrefer
EP1606543B1 (fr) 2003-03-25 2009-04-15 Bekaert Advanced Coatings Raccord a vide universel pour une cible cylindrique
DE10322465A1 (de) 2003-05-16 2004-12-02 Ksb Aktiengesellschaft Trennhülse

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3078115A1 (fr) * 2018-02-22 2019-08-23 Wilo Intec Pompe de circulation d'un fluide avec mesure de pression non intrusive
EP3530950A1 (fr) * 2018-02-22 2019-08-28 Wilo Intec Pompe de circulation d'un fluide avec mesure de pression non intrusive
EP4008908A1 (fr) * 2020-12-02 2022-06-08 Zi Yi Electrical Engineering Co., Ltd. Pompe à rotor noyé avec capteur de fuite

Also Published As

Publication number Publication date
DE102009033111A1 (de) 2011-02-03
EP2292932B1 (fr) 2021-03-31
EP2292932A3 (fr) 2012-10-10

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