EP0731280B1 - Barrière thermique pour un ensemble de pompe centrifuge - Google Patents

Barrière thermique pour un ensemble de pompe centrifuge Download PDF

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Publication number
EP0731280B1
EP0731280B1 EP96102056A EP96102056A EP0731280B1 EP 0731280 B1 EP0731280 B1 EP 0731280B1 EP 96102056 A EP96102056 A EP 96102056A EP 96102056 A EP96102056 A EP 96102056A EP 0731280 B1 EP0731280 B1 EP 0731280B1
Authority
EP
European Patent Office
Prior art keywords
heat barrier
ceramic element
ceramic
pump
shaft
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.)
Expired - Lifetime
Application number
EP96102056A
Other languages
German (de)
English (en)
Other versions
EP0731280A1 (fr
Inventor
Hans-Joachim Dr. Franke
Harald Hartmann
Roland Lachmayer
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 AG
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 EP0731280A1 publication Critical patent/EP0731280A1/fr
Application granted granted Critical
Publication of EP0731280B1 publication Critical patent/EP0731280B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/58—Cooling; Heating; Diminishing heat transfer
    • F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
    • F04D29/5893—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps heat insulation or conduction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
    • F04D7/06—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals

Definitions

  • the invention relates to a heat barrier for a centrifugal pump unit, as with the features of The preamble of claim 1 is described.
  • the heat barrier designed here as a kit represents a component which is a has a large axial extent and has two flange surfaces, one of which one is arranged on the pump side and the other on the motor side.
  • a pump impeller driving shaft In the area of one a pump impeller driving shaft has a heat barrier pressure-tight connection.
  • the good thermal insulation effect has the disadvantage that it has a large axial extent and thus the vibration behavior of the can adversely affect the entire pump set.
  • the interchangeable, Thermal insulation elements of the thermal barrier are located on considerably smaller diameter than the force-transmitting connecting elements between pump and motor parts. This type of construction can be significant in today's world larger pump capacities also have an unfavorable influence on the Exercise the vibration behavior of the pump set.
  • the invention is based on the problem of developing a heat barrier that without an additional external and internal cooling device, a rigid one Design of a centrifugal pump unit enables.
  • the solution to this task takes place with the features of claim 1.
  • the power flow is in the immediate vicinity of the Fasteners provided.
  • the necessary power transfer System between pump and motor part is interrupted by an in between insulating ceramic element. Because a straight line of force flows between the parts to be joined together, the ceramic element is only with Pressure forces.
  • the space between the ceramic element and the shaft passage the heat barrier is filled with an insulating material, preferably ceramic Basis, but which has no force-transmitting effects. Thus ensures that heat transfer to the components 2, 5 by heat radiation and 8 and the liquid-filled spaces are prevented. With this one A ceramic fiber mat has been used as the insulating material emphasized advantageous.
  • the ceramic element can be formed in one or more parts, one multi-part ceramic element allows greater structural freedom.
  • the ceramic element can then by several section-shaped ring elements are formed with the appropriate shape even with different Sizes can be used. It is also possible, for example, through the String together small, disc-shaped, individual ceramic elements to form multi-part annular ceramic element.
  • the disc-shaped little ones Ceramic elements can have a contour that is simple Production enables and with a string together the formation of a ring shape in a constructionally specified area.
  • Fig. 1 is a section of a motor pump unit, a heat barrier shown. Between a pump part 1 and a motor part 2 is one Thermal barrier 3 arranged.
  • Fastening means 4 which in the exemplary embodiment Tie rods are designed with a fastening nut, serve to hold the Parts.
  • the heat barrier 3 should, for. B. the windings 15 of the motor part 2 before Protect temperature loads that can arise from hot pump part 1.
  • the heat barrier parts 7, 8 serve as mechanical damage metallic flange elements can be formed and one between them isolating area.
  • the heat barrier parts 7, 8 are only in the area the shaft 9 thermally conductive to each other, where they have a pressure-tight thin-walled Form shaft passage 10. The dimensions of the shaft passage 10 are according to the mechanical loads and for minimal heat transfer educated. In the area of the shaft passage 10, the two are one inside the other fitted heat barrier parts 7, 8 by a weld 11 liquid and connected gastight.
  • a ceramic insulating compound 12 fills the room 12.1 between the insulating, force-transmitting ceramic element 5 and the Shaft passage 10 out. This prevents that under the influence of temperature additional stresses arise in the heat barrier 3 and a heat transfer by heat radiation on components 2, 5 and 8 and those filled with liquid Rooms is prevented. This covers in the area of the connecting elements 4 Heat barrier part 7, the ceramic element 5 and thus holds it in position. A Gap 13 between the two heat barrier parts 7, 8 prevents a direct Heat conduction between the parts.
  • the designated half of the image of a section of a Motor pump unit shows a different design of the ceramic element 5.
  • the ceramic element is provided with openings 14 for carrying out the Connection elements 4 serve.
  • the contact surface between the Heat barrier parts 7, 8 and the ceramic element 5 can thus be made larger become.
  • the openings 14 are designed in their dimensions so that none Touches between the ceramic element 5 and the fastening means 4 takes place so that the ceramic element is only loaded with compressive forces. Adjacent surfaces of the ceramic element are covered with corresponding Provide transition radii to avoid impermissible edge pressures.
  • the ceramic element 5 is designed as a circular ring is easy to manufacture.
  • the use of a one-piece ceramic part 5 requires a two-part design of the heat barrier.
  • the ceramic element can also consist of several parts be trained.
  • a segmented structure would, for example Allow use of a one-piece heat barrier design.
  • suitable Choice of shape and size of each segment can be different Sizes of heat barriers the appropriate ceramic element be put together. Due to the very high insulation effect of the Ceramic element 5 can reduce its axial extent to a minimum become. This results in a short overall length, which in turn has a positive effect on the dynamic behavior of a shaft 9 passed through the heat barrier 3 and associated components.
  • One flying on wave 9 stored - not shown here - reached by the short Wave overhang a much better running behavior.
  • 3 is a variant of a multi-part design of a ceramic element 5 shown.
  • the shape of the ceramic elements 5.1 chosen so that their dense and uniform arrangement at the installation site is possible.
  • FIGS. 4-6 different designs of ceramic elements 5.1 - 5.3 can be combined.
  • the designs shown are round and crescent-shaped only examples and other designs such as trapezoidal or find linear use that form the formation of a ring Allow ceramic element 5 in multi-part design. Examples are in Figs. 4-6 shown. It is a simple optimization through which design and size of a Ceramic element 5.1 - 5.3, which diameter ranges to form a multi-part ceramic element 5 to be covered.
  • the subject matter of the invention is not of diameter ranges or annular circular arrangements limited.
  • the shape of the circumference of an annular, one-piece or multi-part ceramic element can of course also from one Deviate from a circular shape and are elliptical, angular, polygonal or differently shaped or be arranged.
  • An annular, multi-part ceramic element 5 can also by Stringing together small ceramic elements 5.1 - 5.3 of different contours be formed. 4 and 5 show the small ceramic elements 5.1 - 5.3 preferably arranged on diameter ranges that are smaller than that Diameter range in which the fastening means 4 are located. By suitable selection and arrangement of small ceramic elements 5.1 - 5.3 can the multi-part ceramic element 5 is also arranged on a larger diameter be. 6, this is for example by arranging sickle-shaped small ceramic elements 5.2 possible on both sides of the fastening means 4. To one Obtaining large areas of ceramic elements can be used as compensating parts acting, biconcave or biconvex ceramic elements 5.3 in a multi-part designed ceramic element 5 are integrated.

Landscapes

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

Claims (8)

  1. Barrière thermique, disposée entre une partie pompe (1) refoulant un milieu chaud et une partie moteur (2), des moyens de fixation (4) maintenant ensemble la partie pompe (1) et la partie moteur (2), caractérisée en ce que dans le flux de force produit par les moyens de fixation (4) entre la partie pompe (1) et la partie moteur (2), se trouve un flux de force (6) rectiligne dans la barrière thermique (3), et en ce que dans le flux de force (6) rectiligne de la barrière thermique (3) est disposé un élément céramique (5) servant à la transmission de forces ainsi qu'à l'isolation.
  2. Barrière thermique selon la revendication 1, caractérisée en ce que l'élément céramique (5) est formé d'une ou de plusieurs pièces.
  3. Barrière thermique selon la revendication 1 ou 2, caractérisée en ce que l'élément céramique (5) a une forme annulaire.
  4. Barrière thermique selon les revendications 1 à 3, caractérisée en ce qu'entre un arbre (9) reliant la partie pompe et la partie moteur (1; 2) et l'élément céramique (5) se trouve un espace (12.1) rempli de matériau isolant céramique (12).
  5. Barrière thermique selon la revendication 4, caractérisée en ce qu'entre l'espace (12.1) et l'arbre (9), la barrière thermique (3) est pourvue, de manière connue en soi, d'un passage d'arbre (10) à paroi mince, résistant à la pression et étanche aux gaz, entre une partie de barrière thermique côté moteur et côté pompe (7, 8).
  6. Barrière thermique selon l'une quelconque des revendications 1 à 5, caractérisée en ce que l'élément céramique (5) est pourvu de trous de passage (14) dans la direction de l'arbre pour recevoir des moyens de fixation (4).
  7. Barrière thermique selon l'une quelconque des revendications 1 à 6, caractérisée en ce qu'une connexion de la barrière thermique (3), métallique et conductrice de la chaleur, n'existe que dans la région du passage de l'arbre (10).
  8. Barrière thermique selon l'une quelconque des revendications 1 à 7, caractérisée en ce que l'élément céramique (5) en une ou plusieurs pièces est formé par une céramique du groupe des oxydes de zirconium.
EP96102056A 1995-03-09 1996-02-13 Barrière thermique pour un ensemble de pompe centrifuge Expired - Lifetime EP0731280B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19508321A DE19508321A1 (de) 1995-03-09 1995-03-09 Kreiselpumpenaggregat mit integrierter Wärmesperre
DE19508321 1995-03-09

Publications (2)

Publication Number Publication Date
EP0731280A1 EP0731280A1 (fr) 1996-09-11
EP0731280B1 true EP0731280B1 (fr) 1999-06-16

Family

ID=7756100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102056A Expired - Lifetime EP0731280B1 (fr) 1995-03-09 1996-02-13 Barrière thermique pour un ensemble de pompe centrifuge

Country Status (5)

Country Link
US (1) US5626460A (fr)
EP (1) EP0731280B1 (fr)
AT (1) ATE181403T1 (fr)
DE (2) DE19508321A1 (fr)
IN (1) IN189392B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19721196A1 (de) 1997-05-21 1998-11-26 Klein Schanzlin & Becker Ag Maschinenaggregat mit integrierter Wärmesperre
US6200086B1 (en) * 1999-08-04 2001-03-13 Sundyne Corporation Thermal barrier for use in a mechanical seal assembly
DE10057183A1 (de) * 2000-11-17 2002-05-23 Ksb Ag Magnetkupplungspumpe für heiße Fördermedien
DE10312766B4 (de) * 2003-03-21 2015-08-13 Sew-Eurodrive Gmbh & Co Kg Getriebemotor
CA2736952C (fr) 2008-09-10 2016-11-29 Pentair Pump Group, Inc. Pompe centrifuge multi-etages a haut rendement et procede de montage
DE102010055674A1 (de) * 2010-12-22 2012-06-28 Multivac Sepp Haggenmüller Gmbh & Co. Kg Antriebseinheit mit Dichtung
GB201309049D0 (en) * 2013-05-20 2013-07-03 Rolls Royce Engine Control Systems Ltd Fuel pumping unit
DE202015103453U1 (de) * 2015-07-01 2016-10-05 A. u. K. Müller GmbH & Co. KG Fluidpumpe
CN113417848A (zh) * 2021-07-01 2021-09-21 哈尔滨电气动力装备有限公司 陶瓷纤维结构隔热屏

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB936727A (en) * 1960-01-26 1963-09-11 Klein Schanzlin & Becker Ag Sealed unit comprising a centrifugal pump and an electric driving motor
US3203353A (en) * 1964-03-12 1965-08-31 Armstrong Ltd S A Motor pump unit
US3465681A (en) * 1967-08-24 1969-09-09 March Mfg Co Magnetically-coupled pump with detachable motor
US3500754A (en) * 1968-01-25 1970-03-17 Loewe Pumpenfabrik Gmbh Centrifugal pump units
DE2331039C2 (de) * 1973-06-19 1984-05-10 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Kühlmittelumwälzpumpe
DE2710443A1 (de) * 1977-03-10 1978-09-14 Klein Schanzlin & Becker Ag Waermesperre fuer hochtemperatur- umwaelzpumpen
DE2748393A1 (de) * 1977-10-28 1979-05-03 Klein Schanzlin & Becker Ag Waermesperre
DE3016681C2 (de) * 1980-04-30 1986-01-02 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Wärmesperre für stopfbuchslose Hochtemperaturumwälzpumpen
JPS59217671A (ja) * 1983-05-26 1984-12-07 日本特殊陶業株式会社 部分安定化ジルコニア焼結体を用いた断熱構造
JPS60101201A (ja) * 1983-11-08 1985-06-05 Ngk Spark Plug Co Ltd タ−ビン軸の接合構造
DE3644664A1 (de) * 1986-12-30 1988-07-14 Didier Werke Ag Aluminiumtitanatkeramik und ihre verwendung

Also Published As

Publication number Publication date
DE19508321A1 (de) 1996-09-12
US5626460A (en) 1997-05-06
EP0731280A1 (fr) 1996-09-11
DE59602211D1 (de) 1999-07-22
IN189392B (fr) 2003-02-15
ATE181403T1 (de) 1999-07-15

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