EP0879967A2 - Ensemble de machine avec barrière thermique intégrée - Google Patents

Ensemble de machine avec barrière thermique intégrée Download PDF

Info

Publication number
EP0879967A2
EP0879967A2 EP98107095A EP98107095A EP0879967A2 EP 0879967 A2 EP0879967 A2 EP 0879967A2 EP 98107095 A EP98107095 A EP 98107095A EP 98107095 A EP98107095 A EP 98107095A EP 0879967 A2 EP0879967 A2 EP 0879967A2
Authority
EP
European Patent Office
Prior art keywords
machine unit
plates
unit according
force
centrifugal 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.)
Granted
Application number
EP98107095A
Other languages
German (de)
English (en)
Other versions
EP0879967B1 (fr
EP0879967A3 (fr
Inventor
Ludwig Albrecht
Horst Schreyer
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 EP0879967A2 publication Critical patent/EP0879967A2/fr
Publication of EP0879967A3 publication Critical patent/EP0879967A3/fr
Application granted granted Critical
Publication of EP0879967B1 publication Critical patent/EP0879967B1/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

Definitions

  • the invention relates to a machine unit with a heat barrier through which a hot part of a cool part of the unit during operation Machine unit is separated, with fasteners the two parts hold together and between these parts a flow of force over one or more force-transmitting elements is produced.
  • EP 0 731 280 A1 provides one with a heat barrier equipped unit known. There it is a Centrifugal pump unit for conveying hot media. Through the heat barrier is a separation between the hot pump part and the parts of the Units are created, which seal and drive the Serve pump.
  • Such parts are e.g. B. the shaft seal and the rolling bearings; it can also be the inner part of a magnetic drive or one Activate canned motor in versions without shaft seals.
  • the invention has for its object a with a thermal barrier equipped machine unit to create, which with the same axial Realizing extension is like a corresponding standardized Machine unit without heat barrier, but on sensitive and expensive Materials should be dispensed with.
  • the object is achieved in that the hot part and the cool part above each other, spaced apart have flange-like plates that have one or more force-transmitting metallic elements are interconnected, the connection via there is a minimum cross-sectional area sufficient for the power transmission.
  • the power transmission via metallic elements appears initially much less favorable than a power transmission using ceramic Elements that have a much lower thermal conductivity than Metal. But since a metallic element already has a thin wall can transmit comparatively high forces with metallic Elements the cross-sectional area available for heat conduction essential be kept lower than with ceramic elements.
  • force-transmitting elements allow it moreover, not only elements that are independent of the plates, for example a poorly heat-conducting material to use; it is also possible that force-transmitting elements in one piece with one of the two plates.
  • the two parts of the Machine unit penetrated by a shaft, it is recommended that to connect the two plates together by a tubular body, which the shaft or a sleeve surrounding the shaft with a small distance encloses. It is advantageous here if the tubular body is pressure and is connected gastight to the plates. Above all, this can be achieved be that the tubular body is formed on one of the two plates and with the other plate is connected by welding.
  • the machine unit shown in FIG. 1 is a Centrifugal pump 1, which by a - shown here only to a small extent - Magnetic clutch 2 is driven. This is the impeller 3 of the centrifugal pump 1 via a common shaft 4 with the secondary part of the magnetic coupling 2 connected.
  • the housing of the Centrifugal pump 1 is heated up by the hot liquid it pumps. Around not to endanger the magnetic coupling 2, this must be created before Heat are largely protected. This happens through an between the Centrifugal pump 1 and the magnetic clutch 2 arranged heat barrier.
  • the heat barrier is formed between the pressure side cover 5 of the Centrifugal pump 1 and the housing cover 6 of the magnetic coupling 2, both as flange-like plates are formed.
  • a large number are used to transmit the force exerted by the screws 7 of profile bodies 9 distributed uniformly over the circumference, which in one circular cutout 10 of the lid 5 are arranged and their End faces on the cover 5 of the centrifugal pump 1 and on the housing cover 6 of the Apply magnetic clutch 2.
  • the profile body 9 are hollow, so that they only lie on the covers 5 and 6 with a relatively small cross-sectional area.
  • the housing cover 6 of the magnetic coupling 2 has one on its inside molded tubular body 11, a sleeve surrounding the shaft 4 12 surrounds with a gap 13 and in its dimension him corresponding recess 14 of the pressure-side cover 5 of the centrifugal pump 1 reaches in.
  • a sleeve surrounding the shaft 4 12 surrounds with a gap 13 and in its dimension him corresponding recess 14 of the pressure-side cover 5 of the centrifugal pump 1 reaches in.
  • To create a pressure and gas-tight connection is the tubular body 11 within the recess 14 with the cover 5 welded.
  • a heat insulating material 15 used in the cavity formed between the covers 5 and 6 in the cavity formed between the covers 5 and 6 in the cavity formed between the covers 5 and 6 is a heat insulating material 15 used.
  • the heat barrier shown in Fig. 2 differs from that 1 essentially in that instead of a variety of individual force-transmitting elements 9 only a single, integral with the Cover 6 of the magnetic coupling 2 is an annular element 16 is used.
  • This annular element 16 also has only one overall small cross-sectional area with which it is on the pressure side cover 5 of the Centrifugal pump 1 comes to the system. Thus, there is only a small one here too Area for heat transfer.
  • FIG. 3 an embodiment is shown, which as force-transmitting elements uses sleeves 17, which - not shown here Screws 7, which connect the centrifugal pump 1 to the magnetic coupling 2, surround.
  • the sleeves 17 are each with the pressure side cover 5 of the Centrifugal pump 1 and with the housing cover 6 of the magnetic coupling 2 welded. After gradually assembling and welding the the heat barrier forming parts, the sleeve 17 is still to be processed so that it with the end face of the cover 5 directed towards the centrifugal pump 1 a level Surface forms.
  • a sleeve 18 used with a larger diameter than that for the screw 7 has provided holes and with their end faces on the Lids 5 and 6 are supported. So here is the power on a small one too Total area in the immediate vicinity of the screw connection transfer.
  • the here on the example of different versions one over one Magnetic clutch driven centrifugal pump shown invention can also be applied to centrifugal pumps that are of a different type Drives are connected.
  • One example is one by one Canned motor driven centrifugal pump, in which the heat barrier is very can be designed similarly as in the above-described embodiments.
  • the design according to the invention can be used in all Machine units are used in which a separation between a hot part and a part to be protected against heat.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Connection Of Plates (AREA)
  • General Details Of Gearings (AREA)
EP98107095A 1997-05-21 1998-04-18 Ensemble de machine avec barrière thermique intégrée Expired - Lifetime EP0879967B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19721196A DE19721196A1 (de) 1997-05-21 1997-05-21 Maschinenaggregat mit integrierter Wärmesperre
DE19721196 1997-05-21

Publications (3)

Publication Number Publication Date
EP0879967A2 true EP0879967A2 (fr) 1998-11-25
EP0879967A3 EP0879967A3 (fr) 2000-07-19
EP0879967B1 EP0879967B1 (fr) 2003-06-25

Family

ID=7830049

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98107095A Expired - Lifetime EP0879967B1 (fr) 1997-05-21 1998-04-18 Ensemble de machine avec barrière thermique intégrée

Country Status (4)

Country Link
US (1) US6634854B1 (fr)
EP (1) EP0879967B1 (fr)
JP (1) JP3207391B2 (fr)
DE (2) DE19721196A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1207308A3 (fr) * 2000-11-17 2005-06-15 KSB Aktiengesellschaft Accouplement magnétique pour une pompe centrifuge pour liquides chauds
CN113614379A (zh) * 2019-04-02 2021-11-05 Ksb股份有限公司 热阻挡机构

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10013152A1 (de) * 2000-03-17 2001-09-20 Ksb Ag Dichtungsgehäuse
DE102004048557A1 (de) * 2004-10-04 2006-04-06 Aweco Appliance Systems Gmbh & Co. Kg Flüssigkeitspumpe
US8152458B2 (en) * 2009-04-28 2012-04-10 Mp Pumps, Inc. Centrifugal pump with improved drive shaft and heat exchanger
KR101439020B1 (ko) * 2013-04-22 2014-09-05 한밭대학교 산학협력단 석영으로 된 차폐캡이 구비되는 자력커플러를 이용한 스팀 압축장치
GB201309049D0 (en) * 2013-05-20 2013-07-03 Rolls Royce Engine Control Systems Ltd Fuel pumping unit
DE102014218720A1 (de) * 2014-09-18 2016-03-24 Robert Bosch Gmbh Elektromotor-Hydromaschine-Kombination
JP6504079B2 (ja) * 2016-02-25 2019-04-24 株式会社豊田自動織機 駆動軸部材と従動軸部材との連結構造
JP6504080B2 (ja) * 2016-02-25 2019-04-24 株式会社豊田自動織機 駆動軸部材と従動軸部材との連結構造
CN112088065A (zh) 2018-02-27 2020-12-15 伊利诺斯工具制品有限公司 用于焊炬的隔热板
DE102021005120A1 (de) * 2020-10-16 2022-04-21 KSB SE & Co. KGaA Laterne mit thermischer Trennwirkung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0731280A1 (fr) 1995-03-09 1996-09-11 KSB Aktiengesellschaft Ensemble de pompe centrifuge avec barrière thermique intégrée

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1638272B2 (de) * 1968-03-02 1975-05-28 Siemens Ag, 1000 Berlin Und 8000 Muenchen Pumpe mit Spaltrohrmotor
US3826589A (en) * 1972-06-22 1974-07-30 Sta Rite Industries Plastic pump construction
DE2331039C2 (de) * 1973-06-19 1984-05-10 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Kühlmittelumwälzpumpe
DE2534740C3 (de) * 1975-08-04 1983-02-03 Franz 4630 Bochum Klaus Spaltrohrkreiselpumpe
DE2710443A1 (de) * 1977-03-10 1978-09-14 Klein Schanzlin & Becker Ag Waermesperre fuer hochtemperatur- umwaelzpumpen
DE3016681C2 (de) * 1980-04-30 1986-01-02 Klein, Schanzlin & Becker Ag, 6710 Frankenthal Wärmesperre für stopfbuchslose Hochtemperaturumwälzpumpen
US4775291A (en) * 1987-07-27 1988-10-04 Binks Manufacturing Company Magnetic clutch drive and thrust balancing mechanism for rotary pumps
US5624245A (en) * 1994-10-26 1997-04-29 Mp Pumps, Inc. Centrufugal pump with thermally isolated and dynamically air cooled shaft seal assembly

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0731280A1 (fr) 1995-03-09 1996-09-11 KSB Aktiengesellschaft Ensemble de pompe centrifuge avec barrière thermique intégrée

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1207308A3 (fr) * 2000-11-17 2005-06-15 KSB Aktiengesellschaft Accouplement magnétique pour une pompe centrifuge pour liquides chauds
CN113614379A (zh) * 2019-04-02 2021-11-05 Ksb股份有限公司 热阻挡机构

Also Published As

Publication number Publication date
EP0879967B1 (fr) 2003-06-25
JP3207391B2 (ja) 2001-09-10
EP0879967A3 (fr) 2000-07-19
US6634854B1 (en) 2003-10-21
DE59808789D1 (de) 2003-07-31
DE19721196A1 (de) 1998-11-26
JPH10325399A (ja) 1998-12-08

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