DE518178C - Centrifugal pump for pumping hot fluids with elastically stretchable members to absorb the displacement of the overflow organs with respect to the housing surrounding them - Google Patents
Centrifugal pump for pumping hot fluids with elastically stretchable members to absorb the displacement of the overflow organs with respect to the housing surrounding themInfo
- Publication number
- DE518178C DE518178C DES89170D DES0089170D DE518178C DE 518178 C DE518178 C DE 518178C DE S89170 D DES89170 D DE S89170D DE S0089170 D DES0089170 D DE S0089170D DE 518178 C DE518178 C DE 518178C
- Authority
- DE
- Germany
- Prior art keywords
- overflow
- organs
- displacement
- elastically stretchable
- 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.)
- Expired
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
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage pumps
- F04D1/063—Multi-stage pumps of the vertically split casing type
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
Kreiselpumpe zur Förderung heißer Flüssigkeiten mit elastisch dehnbaren Gliedern zur Aufnahme der Verschiebung der Überströmorgane gegenüber dein sie umgebenden Gehäuse Bei Kreiselmaschinen mit Gasen und Dämpfen als Arbeitsmittel ist es bekannt, die innern Leit-bzw. Überströmorgane mittels elastisch dehnbarer Glieder in axialer wie auch in radialer Richtung federnd gegen das sie umgebende Gehäuse und gegen die Deckel abzustützen. Diese Glieder haben den Nachteil, daß bei Kreiselpumpen zur Förderung von Flüssigkeiten, bei welchen das Spiel zwischen Laufrädern und Überströmorganen verhältnismäßig sehr klein sein muß, infolge der radialen Elastizität der Stützglieder die Laufräder zum Streifen mit den Überströmorganen veranlaßt werden, was zur Zerstörung der Pumpen führt.Centrifugal pump for pumping hot liquids with elastically stretchable Limbs to accommodate the displacement of the overflow organs in relation to the surrounding ones Housing In centrifugal machines with gases and vapors as working media, it is known the inner guide or. Overflow organs by means of elastically stretchable members in an axial direction as well as resiliently in the radial direction against the housing surrounding it and against to support the lids. These members have the disadvantage that in centrifugal pumps for pumping liquids in which the clearance between impellers and overflow elements must be relatively very small, due to the radial elasticity of the support members the impellers are caused to rub with the overflow elements, which leads to destruction the pumps leads.
Die Erfindung bezweckt in axialer Richtung eine Deformation der elastischen Glieder zu ermöglichen, in radialer Richtung jedoch Deformationen der Glieder vollständig zuvermeiden, um die Zentrierung der Überströmorgane auf den Deckel der Pumpe mit Sicherheit übertragen zu können und dadurch die erwähnten Nachteile zu vermeiden. Sie besteht darin, daß das elastische Glied als flache, ringförmige Scheibe ausgebildet ist, deren einer Kreisrand auf dem letzten Überströmorgan und deren anderer Kreisrand auf dem Deckel aufliegt.The invention aims to deform the elastic in the axial direction To enable links, however, deformations of the links completely in the radial direction avoiding the centering of the overflow elements on the cover of the pump To be able to transfer security and thereby avoid the disadvantages mentioned. It consists in that the elastic member is designed as a flat, annular disc whose one circular edge on the last overflow element and the other circular edge rests on the lid.
Der Erfindungsgegenstand ist an Hand einer schematisch, teilweise im Schnitt, teilweise in Ansicht dargestellten mehrstufigen Kreiselpumpe erläutert.The subject matter of the invention is schematically, partially explained in section, partially shown in view of the multistage centrifugal pump.
Auf der in den Lagern i und 2 gelagerten Welle 3 sind die Laufräder. aufgekeilt. Die Laufräder fördern durch Kanäle 6, die zwischen den Überströmorganen 5 und den Leiträdern ii (von denen nur die hintersten zu sehen sind) vorgesehen sind, die Flüssigkeit in den Druckstutzen 7. Die Pumpe weist in bekannter Weise einen Saugstutzen 8, einen Mittelteil g und einen die Pumpe auf der Druckseite abschließenden Deckel io auf, an welchem die Ausgleichsvorrichtung für den Axialschub (nicht gezeichnet) angeschlossen ist. Zwischen dem Deckel io und dem letzten Überströmorgan 5, 11 ist als Ausgleichsvorrichtung ein elastisch dehnbares Glied 12 angeordnet, welches als ringförmige Scheibe, deren einer Kreisrand auf dem Deckel io und deren anderer Kreisrand auf dem letzten Überströmorgan 5, 11 aufliegt, ausgebildet ist.The running wheels are on the shaft 3, which is supported in bearings i and 2. wedged. The impellers convey through channels 6 between the overflow elements 5 and the idlers ii (of which only the rearmost can be seen) provided are, the liquid in the pressure port 7. The pump points in a known manner a suction port 8, a central part g and a pump on the pressure side closing off Cover io on which the compensation device for the axial thrust (not shown) connected. Between the cover io and the last overflow element 5, 11 is arranged as a compensating device, an elastically stretchable member 12, which as annular disc, one of which is a circular edge on the lid and the other circular edge on the last overflow element 5, 11 rests, is formed.
Infolge derim Innern der Pumpe herrschenden, gegenüber den äußeren Teilen höheren Temperatur dehnen sich insbesondere die Überströrnorgane 5 in größerem Maß als das sie umgebende Gehäuse g, wodurch die Überströmorgane den angeschraubten Deckel io nach außen drücken. Gemäß der Erfindung wird nun dieser Dehnungsunterschied der inneren Organe der Pumpe gegenüber dem sie umgebenden Gehäuse, d. h. der von den Überströmorganen 5 in axialer Richtung auf den Deckel io ausgeübte Druck, durch das elastisch dehnbare Glied 12 aufgenommen. In radialer Richtung werden jedoch Deformationen des als ringförmige Scheibe ausgebildeten Gliedes i2 gänzlich verhindert, weil es zufolge seiner Formgebung in dieser Richtung vollständig starr ist, so daß dieses Glied einwandfrei eine Zentrierung vom Deckel io auf die Überströmorgane 5 übertragen kann.As a result of the inside of the pump compared to the outside Parts of higher temperature, in particular, the overflow organs 5 expand to a greater extent Dimension than the surrounding housing g, whereby the overflow organs are screwed on Press cover OK outwards. According to the invention, this elongation difference now becomes the internal organs of the pump in relation to the housing surrounding it, d. H. that of the overflow elements 5 in the axial direction on the cover io pressure exerted by the elastically stretchable member 12 was added. However, in the radial direction Deformations of the member i2, which is designed as an annular disc, are completely prevented, because due to its shape it is completely rigid in this direction, so that this link flawlessly centering the cover on the overflow organs 5 can transfer.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES89170D DE518178C (en) | Centrifugal pump for pumping hot fluids with elastically stretchable members to absorb the displacement of the overflow organs with respect to the housing surrounding them |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES89170D DE518178C (en) | Centrifugal pump for pumping hot fluids with elastically stretchable members to absorb the displacement of the overflow organs with respect to the housing surrounding them |
Publications (1)
Publication Number | Publication Date |
---|---|
DE518178C true DE518178C (en) | 1931-02-12 |
Family
ID=7514947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES89170D Expired DE518178C (en) | Centrifugal pump for pumping hot fluids with elastically stretchable members to absorb the displacement of the overflow organs with respect to the housing surrounding them |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE518178C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE967968C (en) * | 1949-01-20 | 1958-01-02 | Klein Schanzlin & Becker Ag | Multi-stage high pressure centrifugal pump |
WO2000026542A1 (en) * | 1998-10-30 | 2000-05-11 | Ksb Aktiengesellschaft | Compensator |
EP3299626A1 (en) * | 2016-09-23 | 2018-03-28 | Sulzer Management AG | Centrifugal pump for conveying a fluid |
WO2024076721A1 (en) * | 2022-10-07 | 2024-04-11 | Siemens Energy, Inc. | Split casing including a compliant element |
-
0
- DE DES89170D patent/DE518178C/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE967968C (en) * | 1949-01-20 | 1958-01-02 | Klein Schanzlin & Becker Ag | Multi-stage high pressure centrifugal pump |
WO2000026542A1 (en) * | 1998-10-30 | 2000-05-11 | Ksb Aktiengesellschaft | Compensator |
US6471468B1 (en) | 1998-10-30 | 2002-10-29 | Ksb Aktiengesellschaft | Compensator |
EP3299626A1 (en) * | 2016-09-23 | 2018-03-28 | Sulzer Management AG | Centrifugal pump for conveying a fluid |
CN107869477A (en) * | 2016-09-23 | 2018-04-03 | 苏尔寿管理有限公司 | Centrifugal pump for trandfer fluid |
CN107869477B (en) * | 2016-09-23 | 2021-08-06 | 苏尔寿管理有限公司 | Centrifugal pump for conveying fluids |
US11353043B2 (en) | 2016-09-23 | 2022-06-07 | Sulzer Management Ag | Centrifugal pump for conveying a fluid |
WO2024076721A1 (en) * | 2022-10-07 | 2024-04-11 | Siemens Energy, Inc. | Split casing including a compliant element |
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