EP3045686A1 - Agencement pour fixer une volute sur un boîtier de transmission et compresseur à engrenages avec un tel agencement - Google Patents

Agencement pour fixer une volute sur un boîtier de transmission et compresseur à engrenages avec un tel agencement Download PDF

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Publication number
EP3045686A1
EP3045686A1 EP16150033.5A EP16150033A EP3045686A1 EP 3045686 A1 EP3045686 A1 EP 3045686A1 EP 16150033 A EP16150033 A EP 16150033A EP 3045686 A1 EP3045686 A1 EP 3045686A1
Authority
EP
European Patent Office
Prior art keywords
arrangement
mold element
arr
transmission housing
housing
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.)
Withdrawn
Application number
EP16150033.5A
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German (de)
English (en)
Inventor
Jan Weule
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
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 Siemens AG filed Critical Siemens AG
Publication of EP3045686A1 publication Critical patent/EP3045686A1/fr
Withdrawn legal-status Critical Current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
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/163—Combinations of two or more pumps ; Producing two or more separate gas flows driven by a common gearing arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/243—Flange connections; Bolting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/026—Scrolls for radial machines or engines
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/601—Mounting; Assembling; Disassembling specially adapted for elastic fluid 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps

Definitions

  • volute casings In the past, the attachment of volute casings to gearbox housings has proven problematic with increasing volute size.
  • the increasingly larger volute casings place demands on the connection between the volute casing and the gearbox housing, which can no longer be met with previous designs.
  • the compound must have a particularly high rigidity, because the heavily trained spiral housing, despite their high weight, must not shift following the gravity, otherwise it could come to contacts during operation between the impeller or the impeller and the inner housing wall of the spiral housing.
  • the running games which should ensure the freedom of contact, are usually chosen as small as possible, otherwise the efficiency of the machine suffers.
  • the pinion shaft bearings must be adjusted in terms of their axial position.
  • the reasons for a shift of the pinion shaft bearings in dependence on other design parameters, for example, the size of the impeller or restrictions on the installation space, are also often redordynamische considerations.
  • the previous way of connection does not allow a flexible design of the radial bearing position on the pinion shaft. Rather, the connections itself is expansive in the axial direction and widened the axial length of the pinion shaft and the entire gear compressor so considerably.
  • a back-related dependent claim relates to a transmission compressor for solving precisely this problem in the specific and preferred case of the transmission compressor.
  • the preferred application of the invention is in connection with a Getriebefluidenergymachine, in particular it is expedient to provide the arrangement of a gear compressor.
  • a transmission compressor may also include stages, which are designed as expander and, where appropriate, the drive other designed as a compressor stages serve or support the drive at least.
  • the transmission housing is used in such an arrangement, the accommodation of a transmission for transmitting technical work or performance.
  • a drive shaft for the gear compressor is led out of the gear housing and is coupled to a drive machine.
  • the drive machine can be an electric motor or another fluid energy machine, for example a steam turbine.
  • a direct connection of the gear compressor to such a drive machine or to an output machine is not absolutely necessary; It can also be made a compound by means of an intermediate gear to achieve desired ratios and speeds.
  • the preferred solution remains the direct connection of the gear compressor by means of a coupling to a drive.
  • the gear housing serves on the one hand as an oil pan and on the other hand as a mechanical support of the spiral housing of the radial turbofan energy machines.
  • the radial turbofan energy machines or their spiral housings are fixedly mounted on the transmission housing and, as a rule or preferably there, are completely supported, in particular against gravity.
  • the gear housing is preferably designed such that it has a horizontal parting line horizontally positioned and can be disassembled into an upper part and a lower part.
  • An advantageous development of the invention provides in this case that the lower part of the attachment of the spiral housing is used and the upper part is not.
  • the lower part preferably has material thicknesses that are substantially at least twice as large as the material thicknesses on the upper part.
  • Between the spiral housing and the gear housing, in particular preferably the lower part of the gear housing there is a contact surface, where the spiral housing is supported on a first mold element, that is provided between the gear housing and the volute casing.
  • An advantageous development of the invention provides that not only a first mold element between the gear housing and the spiral housing is provided, but a plurality of mold elements comprising the first mold element are arranged for this purpose between the two housings. At least the first mold element extends with respect to the first axis of the respective pinion shaft further in the radial direction than in the circumferential direction. In addition to the first mold element preferably further arranged between the gear housing and the volute casing mold elements, preferably all, the feature of greater radial extent. This formation of the first element element, which is further expanded in the radial direction, ensures a higher rigidity of the connection and a better load capacity of the connection of the spiral housing to the transmission housing.
  • the load collective on the connection includes, in addition to the weight of the volute, for example, other forces, such as support forces.
  • the nozzles are located at the inlet or outlet in the volute casing or out of the volute casing.
  • the relatively far extending in the radial direction extension of the first mold element or the mold elements causes a particularly stable with respect to radial forces connection between the volute casing and the transmission housing. These radial loads occur in particular due to the weight of the volute casing and due to stem forces on the volute casing.
  • the first mold element is preferably fastened to the first volute casing and the first mold element is fastened to the transmission casing.
  • first element element When attaching the first element element to the transmission housing, it is particularly expedient to provide a material connection, for example by means of welding.
  • the stiffening effects are particularly evident when extending at least the first mold element, preferably a plurality of mold elements radially over at least 50% of the maximum radius of the largest first impeller of the respective first pinion shaft.
  • the largest first impeller reference is made here to the possibility of a multi-stage design of a provided at a shaft end of the pinion shaft radial turbofluid energy machine.
  • the most common design, however, is single-stage, so that no feedback stage between the two wheels is required and the flying arrangement of the impeller on the pinion shaft also remains controllable rotor dynamic.
  • first mold element In addition to the first mold element, it is expedient if there is at least one second and at least one third mold element, which are arranged between the two housings for the purpose of connection between the gear housing and the spiral housing.
  • the first spiral housing has a first rear side flange, which is arranged in axial order between the first impeller and the first mold element. Particularly preferably, this rear side flange and the opening to be closed on the back of the spiral housing - ie on the side facing the gear housing - formed larger in diameter than the maximum diameter of the impeller of the pinion shaft of this fluid energy machine, so that a solution of the back flange of the Rest of the spiral housing allows removal of the spiral housing without having to remove the impeller.
  • FIG. 1 illustrated gearbox GC with four arranged on a gear housing volute casings VC, VC1 - VC4 or their neck.
  • the individual volute VC as the first volute VC1, second volute VC2, third volute VC3, fourth volute VC4.
  • All of these spiral casings VC, VC1-VC4 are each equipped with an inventive arrangement ARR for connecting the spiral casing VC, VC1-VC4 to the gearbox GC.
  • the embodiments relate in each case to the first volute casing VC1, these embodiments are readily transferable to the other connections.
  • the outflow of the provided on the other side of the transmission housing GC third volute VC3 and fourth volute VC4 are also visible.
  • FIG. 1 In the presentation of the FIG. 1 is the transmission housing GC or the gear compressor GTC with the gearbox GC in a horizontal operational statement, between the two volute casings VC1, VC2 an uncovered part of a parting line TF can be seen in a parting plane TFP, which extends horizontally along the entire transmission housing GC ,
  • the parting line TF divides the gearbox GC into an upper part UCP and a lower part LCP.
  • FIG. 2 shows the section according to the award II-II FIG. 1 a first impeller IMP1 of the transmission compressor GTC together with the cut first volute casing VC1 and a part of the transmission casing GC and a first pinion shaft PS1 extending along a first axis X1.
  • a first impeller IMP1 of the transmission compressor GTC together with the cut first volute casing VC1 and a part of the transmission casing GC and a first pinion shaft PS1 extending along a first axis X1.
  • Pinion shaft PS1 On the other side of the first not shown Pinion shaft PS1 is located at a second shaft end, a third impeller with the third volute VC3.
  • an axially extending shaft extends in a manner not shown through the transmission housing GC.
  • the impellers mounted on the pinion shafts are arranged on-the-fly, that is, a radial bearing RB is located only on the side of the impeller facing the gearbox GC
  • the lower part LCP of the gear housing GC has significantly thicker wall thicknesses than the upper part UCP, since the volute casings VC1 - VC4 are fastened exclusively to the lower part LCP.
  • the wall thicknesses of the lower part LCP are preferably on average at statically relevant points at least twice as thick as those of the lower part LCP.
  • the pinion shaft PS1 is mounted in radial bearings RB and the transmission housing GC is sealed against the escape of oil at the passages of the first Ritelwelle PS1 in the region of the parting line TF by means of oil seals OSH. Due to the operating pressure of a process fluid in the volute VC1 - VC4 also a shaft seal SSH is provided.
  • the spiral casings VC1-VC4 each have a backside flange BSF which is fastened to the spiral casing VC1-VC4 by means of screws.
  • first mold elements FE1 which extend further in a radial direction RD than in a circumferential direction CD.
  • first mold elements FE1 further mold elements FE2 - FE5 are provided.
  • the mold elements FE1 - FE5 are welded to the transmission housing GC and extend - in FIG. 4 apparent - with respect to the first axis X1 substantially radially at the positions 3 o'clock (third form element FE3), 4:30 o'clock (second form element FE2), 6 o'clock (first form element FE1), 7:30 o'clock (fifth form element FE5), 9 o'clock (fourth form element FE4).
  • the respective form element FE3, FE4 directly to the parting line TF and extends substantially horizontally.
  • the mold elements FE1-FE5 attached to the lower part LCP of the transmission housing GC by means of welding extend essentially radially in a radial manner with respect to the first axis X1. This arrangement is preferably in each case identical to the individual fluid energy machines or volute casings VC1-VC4.
  • the first mold element FE1 or the mold elements FE1 - FE5 each have a first axial bore BH1, through which a fastener SCR - a screw - for fixing the first volute VC1 or VC1 - VC4, on the first mold element FE1 is guided, wherein the fastening element SCR braces a contact surface CSS of the spiral housing VG with the contact surface CSF of the first formula element.
  • the rear side flange BSF of the volute casing VC1-VC4 is hereby provided with screwed-in stud bolts (that is to say the fastening elements SCR) which are arranged coaxially with the first bores BH1.
  • the mold elements FE1 - FE5 have a recess REC which is perpendicular to the first axis X1 and into which the first axial bore BH1 opens, the recess REC having a contact shoulder in the region of the mouth of the first bore BH1, which is substantially perpendicular to the axial longitudinal extent the first bore BH1 extends, wherein the recess REC is formed such that a nut SN can be clamped by the fastening element SCR against this abutment shoulder, so that a contact force between the contact surface CSS of the spiral housing VG and the contact surface CSF of the first element element FE1 arises.
  • the recess REC has an axial width of at least the thickness of the nut SN, so that rotation of the nut SN, a completion of the insertion of the fasteners can be made in the axial direction. This execution allows disassembly of the entire volute casing VC1 - VC4 including rear flange BSF, without having to open the gearbox GC necessarily.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP16150033.5A 2015-01-14 2016-01-04 Agencement pour fixer une volute sur un boîtier de transmission et compresseur à engrenages avec un tel agencement Withdrawn EP3045686A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015200439.2A DE102015200439A1 (de) 2015-01-14 2015-01-14 Anordnung, Getriebeverdichter

Publications (1)

Publication Number Publication Date
EP3045686A1 true EP3045686A1 (fr) 2016-07-20

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EP16150033.5A Withdrawn EP3045686A1 (fr) 2015-01-14 2016-01-04 Agencement pour fixer une volute sur un boîtier de transmission et compresseur à engrenages avec un tel agencement

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EP (1) EP3045686A1 (fr)
DE (1) DE102015200439A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3581802A1 (fr) 2018-06-14 2019-12-18 Siemens Aktiengesellschaft Dispositif et procédé d'appui d'un rotor de turbomachine radiale
EP3594506A1 (fr) 2018-07-12 2020-01-15 Siemens Aktiengesellschaft Bague de contour pour un compresseur

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3299630A1 (fr) 2016-09-27 2018-03-28 Siemens Aktiengesellschaft Système de compresseur
DE102017223791A1 (de) 2017-12-27 2019-06-27 Siemens Aktiengesellschaft Wellendichtungsanordnung einer Turbomaschine, Turbomaschine
EP3617519A1 (fr) 2018-08-27 2020-03-04 Siemens Aktiengesellschaft Rotor de compresseur radial, compresseur radial, compresseur à engrenage
EP3705725A1 (fr) 2019-03-05 2020-09-09 Siemens Aktiengesellschaft Agencement pourvu de composants de l'engrenage
EP4163500A1 (fr) 2021-10-11 2023-04-12 Siemens Energy Global GmbH & Co. KG Installation de compression de l'air pour une séparation de l'air
EP4163501A1 (fr) 2021-10-11 2023-04-12 Siemens Energy Global GmbH & Co. KG Installation de compression de l'air pour une séparation de l'air

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4234739C1 (de) * 1992-10-15 1993-11-25 Gutehoffnungshuette Man Getriebe-Mehrwellenturbokompressor mit Rückführstufen
DE4423784A1 (de) * 1994-06-30 1996-02-15 Mannesmann Ag Ein- oder mehrstufige Getriebeturbomaschine
JPH09144855A (ja) * 1995-11-27 1997-06-03 Kobe Steel Ltd 高速回転機用歯車装置
DE102011003525A1 (de) 2011-02-02 2012-08-02 Siemens Aktiengesellschaft Gestufte Teilfuge an einem Getriebegehäuse
WO2014195390A1 (fr) * 2013-06-06 2014-12-11 Siemens Aktiengesellschaft Compresseur à engrenage

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DE1752098U (de) * 1955-10-24 1957-09-12 Hermann Papst Klein-luefter.
DE3813431A1 (de) * 1988-04-21 1989-11-02 Kloeckner Humboldt Deutz Ag Schutzvorrichtung fuer ein geblaese einer brennkraftmaschine
DE19536928C1 (de) * 1995-10-04 1997-01-30 Loh Kg Rittal Werk Filterlüfter
TW486043U (en) * 2000-11-16 2002-05-01 Delta Electronics Inc Fast removable fan shield and mounting plate
US6695577B1 (en) * 2002-08-13 2004-02-24 American Power Conversion Fan grill
US20070121290A1 (en) * 2005-11-30 2007-05-31 Datavan International Corp. Detachable fan assembly
DE202010010623U1 (de) * 2010-07-24 2011-11-02 Ebm-Papst Mulfingen Gmbh & Co. Kg Schutzgitter-Anordnung für Lüfter
DE202013100139U1 (de) * 2013-01-11 2014-04-15 Ebm-Papst Mulfingen Gmbh & Co. Kg Verbund aus einem Schutzgitter und einem Wandring sowie Lüfter mit einem derartigen Verbund

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4234739C1 (de) * 1992-10-15 1993-11-25 Gutehoffnungshuette Man Getriebe-Mehrwellenturbokompressor mit Rückführstufen
DE4423784A1 (de) * 1994-06-30 1996-02-15 Mannesmann Ag Ein- oder mehrstufige Getriebeturbomaschine
JPH09144855A (ja) * 1995-11-27 1997-06-03 Kobe Steel Ltd 高速回転機用歯車装置
DE102011003525A1 (de) 2011-02-02 2012-08-02 Siemens Aktiengesellschaft Gestufte Teilfuge an einem Getriebegehäuse
WO2014195390A1 (fr) * 2013-06-06 2014-12-11 Siemens Aktiengesellschaft Compresseur à engrenage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3581802A1 (fr) 2018-06-14 2019-12-18 Siemens Aktiengesellschaft Dispositif et procédé d'appui d'un rotor de turbomachine radiale
WO2019238366A1 (fr) 2018-06-14 2019-12-19 Siemens Aktiengesellschaft Dispositif, procédé
EP3594506A1 (fr) 2018-07-12 2020-01-15 Siemens Aktiengesellschaft Bague de contour pour un compresseur
WO2020011471A1 (fr) 2018-07-12 2020-01-16 Siemens Aktiengesellschaft Turbomachine radiale et procédé pour son fonctionnement

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Publication number Publication date
DE102015200439A1 (de) 2016-07-14

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