EP0879967B1 - Maschinenaggregat mit integrierter Wärmesperre - Google Patents
Maschinenaggregat mit integrierter Wärmesperre Download PDFInfo
- Publication number
- EP0879967B1 EP0879967B1 EP98107095A EP98107095A EP0879967B1 EP 0879967 B1 EP0879967 B1 EP 0879967B1 EP 98107095 A EP98107095 A EP 98107095A EP 98107095 A EP98107095 A EP 98107095A EP 0879967 B1 EP0879967 B1 EP 0879967B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- machine unit
- force
- unit according
- plates
- transmitting elements
- 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
Links
- 230000004888 barrier function Effects 0.000 title claims description 17
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000011810 insulating material Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 230000004907 flux Effects 0.000 claims 1
- 239000000919 ceramic Substances 0.000 description 7
- 238000000926 separation method Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
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 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 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.
- metal for the power transmission elements allows it moreover, not only elements that are independent of the plates, for example made of a poorly heat-conducting material to use; it is also possible that force-transmitting elements in one piece with one of the two plates.
- tubular body is pressure and is gas-tightly connected 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 evenly distributed 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 extends.
- 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 extends.
- 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 screw 7 has provided holes and with their end faces on the Lids 5 and 6 are supported. So here the force is on a small one too Total area in the immediate vicinity of the force-applying 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 with different types 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)
- General Details Of Gearings (AREA)
- Connection Of Plates (AREA)
Description
- Fig. 1
- ein ausschnittsweise dargestelltes, erfindungsgemäß gestaltetes Maschinenaggregat, in
- Fig. 2
- einen Ausschnitt aus einem der Fig. 1 entsprechenden Maschinenaggregat mit einer zu dieser alternativen Gestaltung im Bereich der Wärmesperre, und in
- Fig. 3
- einen Ausschnitt mit zwei weiteren alternativen Gestaltungen im Bereich der Wärmesperre.
Claims (16)
- Maschinenaggregat mit einer Wärmesperre, durch die ein während des Betriebes heißer Teil von einem kühlen Teil des Maschinenaggregates getrennt wird, wobei Befestigungsmittel die beiden Teile zusammenhalten und zwischen diesen Teilen ein Kraftfluß über ein oder mehrere kraftübertragende Elemente hergestellt wird, dadurch gekennzeichnet, daß der heiße Teil (1) und der kühle Teil (2) über einander benachbarte, mit Abstand zueinander angeordnete flanschartige Platten (5, 6) verfügen, die über ein oder mehrere kraftübertragende metallische Elemente (9, 16, 17, 18) miteinander verbunden sind, wobei die Verbindung über eine für die Kraftübertragung ausreichende minimale Querschnittsfläche erfolgt, und die beiden flanschartigen Platten (5, 6) durch einen rohrförmigen Körper (11) miteinander verbunden sind, welcher die Welle (4) oder eine die Welle (4) umgebende Hülse (12) mit geringem Abstand umschließt.
- Maschinenaggregat nach Anspruch 1, gekennzeichnet durch eine druck- und gasdichte Verbindung des rohrförmigen Körpers (11) mit den Platten (5, 6).
- Maschinenaggregat nach Anspruch 2, dadurch gekennzeichnet, daß der rohrförmige Körper (11) an eine der beiden Platten (6) angeformt und mit der anderen Platte (5) durch Schweißung verbunden ist.
- Maschinenaggregat nach Anspruch 1 oder 2, gekennzeichnet durch ein oder mehrere kraftübertragende Elemente, die jeweils als von den Platten (5, 6) unabhängiges Einzelteil gestaltet ist.
- Maschinenaggregat nach Anspruch 4, dadurch gekennzeichnet, daß das kraftübertragende Element aus einem Metall mit niedriger Wärmeleitfähigkeit hergestellt ist.
- Maschinenaggregat nach Anspruch 1 oder 2, gekennzeichnet durch ein oder mehrere kraftübertragende Elemente, die einstückig mit einer der Platten ausgeführt sind.
- Maschinenaggregat nach Anspruch 4 oder 6, dadurch gekennzeichnet, daß als kraftübertragende Elemente mehrere gleichmäßig über den Umfang verteilte Profilkörper (9) dienen.
- Maschinenaggregat nach Anspruch 4 oder 6, dadurch gekennzeichnet, daß als kraftübertragendes Element ein kreisringförmiger Körper (16) dient.
- Maschinenaggregat nach Anspruch 4 oder 6, mit durch Schrauben oder Bolzen gebildeten, die beiden Teile des Maschinenaggregates zusammenhaltenden Befestigungsmitteln, dadurch gekennzeichnet, daß als kraftübertragende Elemente die Befestigungsmittel (7) umschließende, mit ihren Stirnseiten an den Platten (5, 5) anliegende Hülsen (18) dienen.
- Maschinenaggregat nach Anspruch 4 oder 6, mit durch Schrauben oder Bolzen gebildeten, die beiden Teile des Maschinenaggregates zusammenhaltenden Befestigungsmitteln, dadurch gekennzeichnet, daß als kraftübertragende Elemente die Befestigungsmittel (7) umschließende, mit beiden Platten (5, 6) verschweißte Hülsen (17) dienen.
- Maschinenaggregat nach mehreren der Ansprüche 7 bis 10, gekennzeichnet durch die Anordnung einer Kombination verschiedener kraftübertragender Elemente.
- Maschinenaggregat nach einem oder mehreren der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß der zwischen den Platten (5, 6) gebildete Raum mit einem wärmeisolierenden Material (15) gefüllt ist.
- Maschinenaggregat nach einem oder mehreren der Ansprüche 1 bis 12, gekennzeichnet durch jeweils einen oder mehrere kreisringförmige Ausschnitte (10) in einer oder beiden Platten (5, 6) zur Aufnahme von kraftübertragenden Elementen (9, 16, 17, 18) und/oder wärmeisolierendem Material (15).
- Verwendung eines Maschinenaggregates nach einem oder mehreren der Ansprüche 1 bis 13 für eine ein heißes Medium fördernde Kreiselpumpe und deren Antrieb, wobei die Wärmesperre zwischen der Kreiselpumpe und dem Antrieb angeordnet ist.
- Verwendung gemäß Anspruch 14 für eine durch einen Spaltrohrmotor angetriebene Kreiselpumpe.
- Verwendung gemäß Anspruch 14 für eine über eine Magnetkupplung angetriebene Kreiselpumpe.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19721196 | 1997-05-21 | ||
| DE19721196A DE19721196A1 (de) | 1997-05-21 | 1997-05-21 | Maschinenaggregat mit integrierter Wärmesperre |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0879967A2 EP0879967A2 (de) | 1998-11-25 |
| EP0879967A3 EP0879967A3 (de) | 2000-07-19 |
| EP0879967B1 true EP0879967B1 (de) | 2003-06-25 |
Family
ID=7830049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98107095A Expired - Lifetime EP0879967B1 (de) | 1997-05-21 | 1998-04-18 | Maschinenaggregat mit integrierter Wärmesperre |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6634854B1 (de) |
| EP (1) | EP0879967B1 (de) |
| JP (1) | JP3207391B2 (de) |
| DE (2) | DE19721196A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022079147A1 (de) * | 2020-10-16 | 2022-04-21 | KSB SE & Co. KGaA | Laterne mit thermischer trennwirkung |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10013152A1 (de) * | 2000-03-17 | 2001-09-20 | Ksb Ag | Dichtungsgehäuse |
| DE10057183A1 (de) * | 2000-11-17 | 2002-05-23 | Ksb Ag | Magnetkupplungspumpe für heiße Fördermedien |
| 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 |
| 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 |
| 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 |
| WO2019168497A1 (en) | 2018-02-27 | 2019-09-06 | Illinois Tool Works Inc. | Thermal insulating plates for welding torches |
| DE102019002392A1 (de) * | 2019-04-02 | 2020-10-08 | KSB SE & Co. KGaA | Wärmesperre |
Family Cites Families (9)
| 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 |
| DE19508321A1 (de) | 1995-03-09 | 1996-09-12 | Klein Schanzlin & Becker Ag | Kreiselpumpenaggregat mit integrierter Wärmesperre |
-
1997
- 1997-05-21 DE DE19721196A patent/DE19721196A1/de not_active Withdrawn
-
1998
- 1998-04-18 EP EP98107095A patent/EP0879967B1/de not_active Expired - Lifetime
- 1998-04-18 DE DE59808789T patent/DE59808789D1/de not_active Expired - Lifetime
- 1998-05-20 JP JP15515198A patent/JP3207391B2/ja not_active Expired - Lifetime
- 1998-05-21 US US09/081,765 patent/US6634854B1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022079147A1 (de) * | 2020-10-16 | 2022-04-21 | KSB SE & Co. KGaA | Laterne mit thermischer trennwirkung |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19721196A1 (de) | 1998-11-26 |
| US6634854B1 (en) | 2003-10-21 |
| EP0879967A3 (de) | 2000-07-19 |
| DE59808789D1 (de) | 2003-07-31 |
| JPH10325399A (ja) | 1998-12-08 |
| EP0879967A2 (de) | 1998-11-25 |
| JP3207391B2 (ja) | 2001-09-10 |
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