EP0840016B1 - Turbomachine, in particular a barrel-type compressor - Google Patents

Turbomachine, in particular a barrel-type compressor Download PDF

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Publication number
EP0840016B1
EP0840016B1 EP19970250306 EP97250306A EP0840016B1 EP 0840016 B1 EP0840016 B1 EP 0840016B1 EP 19970250306 EP19970250306 EP 19970250306 EP 97250306 A EP97250306 A EP 97250306A EP 0840016 B1 EP0840016 B1 EP 0840016B1
Authority
EP
European Patent Office
Prior art keywords
housing
bearing
stator
adapter
turbo
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
EP19970250306
Other languages
German (de)
French (fr)
Other versions
EP0840016A2 (en
EP0840016A3 (en
Inventor
Wolfgang Dipl.-Ing. Zacharias
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.)
Siemens AG
Original Assignee
Siemens AG
Siemens Corp
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
Priority claimed from DE19745606A external-priority patent/DE19745606C2/en
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0840016A2 publication Critical patent/EP0840016A2/en
Publication of EP0840016A3 publication Critical patent/EP0840016A3/en
Application granted granted Critical
Publication of EP0840016B1 publication Critical patent/EP0840016B1/en
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
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D17/08—Centrifugal pumps
    • F04D17/10—Centrifugal pumps for compressing or evacuating
    • F04D17/12—Multi-stage pumps
    • F04D17/122—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors
    • F04D17/125—Multi-stage pumps the individual rotor discs being, one for each stage, on a common shaft and axially spaced, e.g. conventional centrifugal multi- stage compressors the casing being vertically split
    • 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
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps

Definitions

  • the invention relates to a turbomachine, in particular a compressor, in a pot design according to the preamble of claim 1.
  • a turbomachine is generally known in practice.
  • the object of the invention is to provide a turbomachine, in particular a compressor Specify pot construction, in which a conversion construction without the described Problems is possible.
  • the essence of the invention is the mounting of the bearing block on from the housing protruding face end of the stator of the bundle. It is essential to the invention that the bearing block with the bundle and not with the housing connected is. In a conventional construction, the flange of the Bearing block screwed directly to the housing.
  • the arrangement according to the invention enables exact positioning of rotor parts to stator parts outside the Housing. Since the losses of a turbomachine are largely determined by the The size of the gap between the rotor and stator part is influenced, is the optimal Alignment between the rotor and stator part of the bundle is crucial Importance.
  • the exact location can be assigned be fixed between the rotor and stator part by cylindrical and / or tapered pins, so that after dismantling the bearing blocks, the aligned bundle in the housing can be inserted. Regardless of the position of the bundle
  • the axis of the housing remains the set one that determines the power loss Position assignment between rotor and stator part obtained. This makes possible Influences on the operating behavior and operational safety of the machine any deviations in the existing housing in the bundle fit area to the housing and bundles to the lid avoided.
  • the existing housing and the existing cover has no influence on the position of the rotor in relation to the stator parts. For this reason it is possible to check the installation position without the housing Make rotor to stator part. This eliminates risks when mounting on the Construction site minimized in an existing housing.
  • the adapter is primarily used to: a compensation for that in most cases a smaller diameter having the end of the stator protruding from the housing and the one to create larger diameter flange of the bearing block.
  • the adapter can also be used to hold a seal (e.g. locking labyrinth) between the bearing block and the shaft seal can be used with gas-lubricated Seals and labyrinth seals, as well as with oil-lubricated seals separate oil system, d. H. Bearing oil and sealing oil are separate, is required.
  • the sealing gas can be connected directly to the adapter.
  • the adapter can also for performing connection bores to seals or chambers in the End of the stator can be used.
  • the turbocompressor shown in the single figure has a housing 1 in Pot design.
  • the area on the left is here the housing 1 with a fixed contact shoulder 2.
  • This housing 1 consisting of rotor 3 and stator parts 4, 5 and a shaft 6 bundles axially inserted.
  • the stator part 5 of the bundle on the left comes to the System shoulder 2 to the system.
  • the end on the right side is a cover 7, which is connected to the housing 1 via screws 8.
  • the respective front End 9, 10 of the stator 4, 5 protrudes beyond the end closure of the cover 7 or the housing 1 also.
  • the other side of the adapter 11, 12 is with the respective bearing block 13, 14 connected. That in this embodiment here on the left arranged bearing is as a radial bearing 15 and the bearing arranged on the right as Radial axial bearing 16 is formed.
  • the bundle is guided in the radial direction on the one hand via the bore 17 in the contact shoulder 2 of the housing 1 and others in the bore 18 of the cover 7.
  • the Bundle under operating conditions through the contact shoulder 2 in the housing 1 and by the radial thrust bearing 16 arranged here on the right.
  • the seal between Suction pressure 19 and final pressure 20 in the bundle to the housing 1 takes place between a the stator part 5 and the housing 1 arranged seal 21.
  • the exemplary embodiment is a locking labyrinth 23 as a seal in both adapters 11, 12 arranged between the bearing block 13, 14 and shaft seal. The sealing gas is thereby fed to the respective locking labyrinth 23 via an insert 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Supercharger (AREA)

Description

Die Erfindung betrifft eine Turbomaschine, insbesondere Verdichter, in Topfbauweise gemäß dem Oberbegriff des Patentanspruches 1.
Eine derartige Turbomaschine ist aus der Praxis allgemein bekannt.The invention relates to a turbomachine, in particular a compressor, in a pot design according to the preamble of claim 1.
Such a turbomachine is generally known in practice.

Zur Einhaltung der Betriebsparameter und zur Sicherstellung der geforderten Laufruhe Betriebssicherheit sind bei der Konstruktion und dem Bau von Turbomaschinen hohe Toleranzanforderungen einzuhalten. Besonders bei Umbauten ohne die Möglichkeit einer Gehäusenachbearbeitung können vorhandene Fertigungsungenauigkeiten zu größeren Problemen bei der Inbetriebnahme der Maschine führen. Die geschilderte Problematik tritt insbesondere dann auf, wenn das Gehäuse eines Verdichters in der Rohrleitung eingeschweißt ist und das aus Rotor- und Statorteilen bestehende Bündel ausgetauscht werden muß.To comply with the operating parameters and to ensure the required Smooth running operational safety are in the design and construction of Turbomachines to comply with high tolerance requirements. Especially for conversions without the possibility of reworking the housing Manufacturing inaccuracies to major problems when commissioning the Machine. The described problem occurs in particular if that Housing of a compressor is welded into the pipeline and made of rotor and stator parts existing bundles must be replaced.

Aufgabe der Erfindung ist es, eine Turbomaschine, insbesondere Verdichter, in Topfbauweise anzugeben, bei dem eine Umbaukonstruktion ohne die geschilderten Probleme möglich ist.The object of the invention is to provide a turbomachine, in particular a compressor Specify pot construction, in which a conversion construction without the described Problems is possible.

Diese Aufgabe wird ausgehend vom Oberbegriff in Verbindung mit den kennzeichnenden Merkmalen des Patentanspruches 1 gelöst. Vorteilhafte Ausgestaltungen sind Bestandteil von Unteransprüchen.This task is based on the generic term in conjunction with the characterizing features of claim 1 solved. advantageous Refinements are part of subclaims.

Kern der Erfindung ist die Befestigung des Lagerbockes am aus dem Gehäuse herausragenden stimseitigen Ende des Stators des Bündels. Dabei ist erfindungswesentlich, daß der Lagerbock mit dem Bündel und nicht mit dem Gehäuse verbunden ist. Bei einer üblichen konventionellen Konstruktion wird der Flansch des Lagerbockes direkt an das Gehäuse angeschraubt. Die erfindungsgemäße Anordnung ermöglicht eine exakte Positionierung von Rotorteilen zu Statorteilen außerhalb des Gehäuses. Da die Verluste einer Turbomaschine maßgeblich durch die Größe der Spalte zwischen Rotor- und Statorteil beeinflußt werden, ist die optimale Ausrichtung zwischen Rotor- und Statorteil des Bündels von entscheidender Bedeutung. Nach der Ausrichtung in der Werkstatt kann die genaue Lagezuordnung zwischen Rotor- und Statorteil durch Zylinder- und/oder Kegelstifte fixiert werden, so daß nach Abbau der Lagerböcke das ausgerichtete Bündel in das Gehäuse eingeschoben werden kann. Unabhängig von der Lagepositionierung des Bündels zur Gehäuseachse bleibt die eingestellte und die Verlustleistung bestimmende genaue Lagezuordnung zwischen Rotor- und Statorteil erhalten. Dadurch werden mögliche Einflüsse auf das Betriebsverhalten und die Betriebssicherheit der Maschine durch eventuelle Abweichungen in dem vorhandenen Gehäuse im Passungsbereich Bündel zum Gehäuse und Bündel zum Deckel vermieden.The essence of the invention is the mounting of the bearing block on from the housing protruding face end of the stator of the bundle. It is essential to the invention that the bearing block with the bundle and not with the housing connected is. In a conventional construction, the flange of the Bearing block screwed directly to the housing. The arrangement according to the invention enables exact positioning of rotor parts to stator parts outside the Housing. Since the losses of a turbomachine are largely determined by the The size of the gap between the rotor and stator part is influenced, is the optimal Alignment between the rotor and stator part of the bundle is crucial Importance. After the alignment in the workshop, the exact location can be assigned be fixed between the rotor and stator part by cylindrical and / or tapered pins, so that after dismantling the bearing blocks, the aligned bundle in the housing can be inserted. Regardless of the position of the bundle The axis of the housing remains the set one that determines the power loss Position assignment between rotor and stator part obtained. This makes possible Influences on the operating behavior and operational safety of the machine any deviations in the existing housing in the bundle fit area to the housing and bundles to the lid avoided.

Mit der vorgeschlagenen konstruktiven Ausführung hat das vorhandene Gehäuse und der vorhandene Deckel keinen Einfluß auf die Lage des Rotors zu den Statorteilen. Aus diesem Grunde ist es möglich, ohne Gehäuse eine Überprüfung der Einbaulage Rotor zu Statorteil vorzunehmen. Dadurch werden Risiken bei der Montage auf der Baustelle in ein vorhandenes Gehäuse minimiert.With the proposed design, the existing housing and the existing cover has no influence on the position of the rotor in relation to the stator parts. For this reason it is possible to check the installation position without the housing Make rotor to stator part. This eliminates risks when mounting on the Construction site minimized in an existing housing.

Je nach den Durchmesserverhältnissen zwischen dem stirnseitigen Statorende und dem dazugehörigen Lagerbock kann es zweckmäßig sein, einen Adapter dazwischenzusetzen. Der Adapter wird in erster Linie vorteilhaft dazu genutzt, um einen Ausgleich zu dem in den meisten Fällen einen kleineren Durchmesser aufweisenden aus dem Gehäuse herausragenden Ende des Stators und dem einen größeren Durchmesser aufweisenden Flansch des Lagerbockes zu schaffen.Depending on the diameter ratio between the front end of the stator and the associated bearing block, it may be appropriate to use an adapter intervening enforce. The adapter is primarily used to: a compensation for that in most cases a smaller diameter having the end of the stator protruding from the housing and the one to create larger diameter flange of the bearing block.

Der Adapter kann auch zur Aufnahme einer Dichtung (beispielsweise Sperrlabyrinth) zwischen Lagerbock und Wellendichtung genutzt werden, die bei gasgeschmierten Dichtungen und Labyrinthdichtungen, sowie bei ölgeschmierten Dichtungen mit getrenntem Ölsystem, d. h. Lageröl und Dichtungsöl sind getrennt, erforderlich ist. Der Anschluß des Sperrgases kann dabei direkt am Adapter erfolgen. Der Adapter kann auch zum Durchführen von Anschlußbohrungen zu Dichtungen oder Kammern im Statorende genutzt werden.The adapter can also be used to hold a seal (e.g. locking labyrinth) between the bearing block and the shaft seal can be used with gas-lubricated Seals and labyrinth seals, as well as with oil-lubricated seals separate oil system, d. H. Bearing oil and sealing oil are separate, is required. The The sealing gas can be connected directly to the adapter. The adapter can also for performing connection bores to seals or chambers in the End of the stator can be used.

In der einzigen Figur wird anhand eines Ausführungsbeispieles im Längsschnitt die erfindungsgemäße Konstruktion näher erläutert. In the single figure, the embodiment is shown in longitudinal section Construction according to the invention explained in more detail.

Der in der einzigen Figur dargestellte Turboverdichter weist ein Gehäuse 1 in Topfbauweise auf. In diesem Ausführungsbeispiel ist der hier links liegende Bereich des Gehäuses 1 mit einer festen Anlageschulter 2 versehen. Alternativ ist auch die Anordnung eines Deckels als Anlageschulter möglich. In dieses Gehäuse 1 wird das aus Rotor- 3 und Statorteilen 4, 5 sowie einer Welle 6 bestehende Bündel axial eingeschoben. Dabei kommt das links sich befindende Statorteil 5 des Bündels an der Anlageschulter 2 zur Anlage. Den Abschluß auf der rechten Seite bildet ein Deckel 7, der über Schrauben 8 mit dem Gehäuse 1 verbunden ist. Das jeweilige stirnseitige Ende 9, 10 des Stators 4, 5 ragt über den stirnseitigen Abschluß des Deckels 7 bzw. des Gehäuses 1 hinaus. In diesem Ausführungsbeispiel ist an dieses Ende 9, 10 ein Adapter 11, 12 angeschraubt. Die andere Seite des Adapters 11, 12 ist mit dem jeweiligen Lagerbock 13, 14 verbunden. Das in diesem Ausführungsbeispiel hier links angeordnete Lager ist als Radiallager 15 und das rechts angeordnete Lager als Radial-Axiallager 16 ausgebildet. Die Führung des Bündels in radialer Richtung erfolgt zum einen über die Bohrung 17 in der Anlageschulter 2 des Gehäuses 1 und zum anderen in der Bohrung 18 des Deckels 7. In axialer Richtung erfolgt die Führung des Bündels unter Betriebsbedingungen durch die Anlageschulter 2 im Gehäuse 1 und durch das hier rechts angeordnete Radial-Axiallager 16. Die Abdichtung zwischen Saugdruck 19 und Enddruck 20 im Bündel zum Gehäuse 1 erfolgt über eine zwischen dem Statorteil 5 und dem Gehäuse 1 angeordnete Dichtung 21. In diesem Ausführungsbeispiel ist in beiden Adaptern 11, 12 ein Sperrlabyrinth 23 als Dichtung zwischen Lagerbock 13, 14 und Wellendichtung angeordnet. Das Sperrgas wird dabei über einen Einsatz 22 dem jeweiligen Sperrlabyrinth 23 zugeführt.The turbocompressor shown in the single figure has a housing 1 in Pot design. In this embodiment, the area on the left is here the housing 1 with a fixed contact shoulder 2. Alternatively, the Arrangement of a lid as an investment shoulder possible. In this housing 1 consisting of rotor 3 and stator parts 4, 5 and a shaft 6 bundles axially inserted. The stator part 5 of the bundle on the left comes to the System shoulder 2 to the system. The end on the right side is a cover 7, which is connected to the housing 1 via screws 8. The respective front End 9, 10 of the stator 4, 5 protrudes beyond the end closure of the cover 7 or the housing 1 also. In this embodiment there is 9, 10 at this end Adapters 11, 12 screwed on. The other side of the adapter 11, 12 is with the respective bearing block 13, 14 connected. That in this embodiment here on the left arranged bearing is as a radial bearing 15 and the bearing arranged on the right as Radial axial bearing 16 is formed. The bundle is guided in the radial direction on the one hand via the bore 17 in the contact shoulder 2 of the housing 1 and others in the bore 18 of the cover 7. In the axial direction, the Bundle under operating conditions through the contact shoulder 2 in the housing 1 and by the radial thrust bearing 16 arranged here on the right. The seal between Suction pressure 19 and final pressure 20 in the bundle to the housing 1 takes place between a the stator part 5 and the housing 1 arranged seal 21. In this The exemplary embodiment is a locking labyrinth 23 as a seal in both adapters 11, 12 arranged between the bearing block 13, 14 and shaft seal. The sealing gas is thereby fed to the respective locking labyrinth 23 via an insert 22.

Claims (5)

  1. A turbo-engine, in particular compressor, in a barrel-type construction with a housing comprising a bearing shoulder, an assembly insertable therein and consisting of rotor and stator parts and a cover closing off the housing on one side and also a shaft bearing the rotor parts, the journals of which, which extend out of the housing to the right and to the left, are each mounted in a bearing block by means of a radial bearing and a radial/axial bearing and one journal end is provided with an element for coupling to the connection for driving the turbo-engine, the guidance of the assembly in the radial direction being effected by a bore formed in the region of the bearing shoulder of the housing and a bore formed in the cover and in the axial direction under operating conditions via the bearing shoulder in the housing and by the radial/axial bearing,
    characterised in that
    the respective bearing block (13, 14) is fastened on the respective end face of the stator (4, 5) of the assembly projecting out of the housing (1) and an adapter (11, 12) is arranged between the respective end face of the stator (4, 5) of the assembly projecting out of the housing (1) and the respective bearing block (13, 14), the adapter (11, 12) being used to compensate for the end of the stator which has a smaller diameter and the bearing block (13, 14) which has a larger diameter.
  2. A turbo-engine according to Claim 1, characterised in that the adapter (11, 12) has an insert (22) located therein with a labyrinth seal (23) which can be supplied with seal gas in order to separate the bearing block (13, 14) and the shaft seal.
  3. A turbo-engine according to Claims 1 and 2, characterised in that the adapter (11, 12) has connection bores to seals or chambers in the end of the stator.
  4. A turbo-engine according to Claims 2 and 3, characterised in that the adapter (11, 12) in a housing ring has an insert (22) arranged thereon with a labyrinth seal (23) which can be supplied with seal gas in order to separate the bearing block (13, 14) and the shaft seal.
  5. A turbo-engine according to one of Claims 2 to 4, characterised in that the adapter (11, 12) has connection bores to seals or chambers in the end of the stator.
EP19970250306 1996-10-29 1997-10-16 Turbomachine, in particular a barrel-type compressor Expired - Lifetime EP0840016B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19646528 1996-10-29
DE19646528 1996-10-29
DE19745606 1997-10-08
DE19745606A DE19745606C2 (en) 1996-10-29 1997-10-08 Turbo machine, in particular compactors with a pot design

Publications (3)

Publication Number Publication Date
EP0840016A2 EP0840016A2 (en) 1998-05-06
EP0840016A3 EP0840016A3 (en) 1999-01-13
EP0840016B1 true EP0840016B1 (en) 2003-02-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970250306 Expired - Lifetime EP0840016B1 (en) 1996-10-29 1997-10-16 Turbomachine, in particular a barrel-type compressor

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EP (1) EP0840016B1 (en)
RU (1) RU2140578C1 (en)

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RU2267656C2 (en) * 2004-03-25 2006-01-10 Открытое акционерное общество "Авиадвигатель" Axial-flow compressor for turbomachine
RU2282758C2 (en) * 2004-12-16 2006-08-27 Открытое акционерное общество "Научно-производственное объединение "Сатурн" (ОАО "НПО "Сатурн") Unit for joining compressor rotor with turbine of gas-turbine engine
FR2884568B1 (en) * 2005-04-15 2007-06-08 Snecma Moteurs Sa ASSEMBLY ARRANGEMENT BETWEEN AN INTERNAL BEARING RING AND A TOURILLON, RING AND TOURILLON ADAPTED TO SUCH ARRANGEMENT, AND TURBOMACHINE EQUIPPED THEREWITH
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RU2315207C1 (en) * 2006-05-03 2008-01-20 Закрытое акционерное общество "Научно-исследовательский и конструкторский институт центробежных и роторных компрессоров им. В.Б. Шнеппа" Compression housing on support frame
RU2407920C1 (en) * 2009-08-05 2010-12-27 Закрытое акционерное общество "Научно-исследовательский и конструкторский институт центробежных и роторных компрессоров им. В.Б. Шнеппа" Compressor case on support frame
RU2430276C1 (en) * 2010-04-21 2011-09-27 Открытое акционерное общество "Авиадвигатель" Gas turbine engine compressor
US9062690B2 (en) * 2010-11-30 2015-06-23 General Electric Company Carbon dioxide compression systems
ITCO20110027A1 (en) 2011-07-21 2013-01-22 Nuovo Pignone Spa MULTI-STAGE CENTRIFUGAL TURBOMACCHINE
EP2933500B1 (en) 2013-02-26 2017-11-15 Mitsubishi Heavy Industries Compressor Corporation Method for assembling compressor, and bundle guide device
JP6025608B2 (en) 2013-02-27 2016-11-16 三菱重工コンプレッサ株式会社 Compressor assembly method and bundle guide device
DE102014203466B4 (en) * 2014-02-26 2017-03-30 Siemens Aktiengesellschaft Housing of a fluid energy machine
DE102014207430A1 (en) * 2014-04-17 2015-10-22 Siemens Aktiengesellschaft Arrangement with a frontal lid
RU178534U1 (en) * 2017-02-02 2018-04-06 Федеральное государственное бюджетное образовательное учреждение высшего образования "Самарский государственный университет путей сообщения" (СамГУПС) Turbocharger
CN109469646B (en) * 2018-10-22 2021-06-11 沈阳透平机械股份有限公司 Air Separation Cabinet Structure

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Publication number Publication date
EP0840016A2 (en) 1998-05-06
EP0840016A3 (en) 1999-01-13
RU2140578C1 (en) 1999-10-27

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