• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Turbomachine, with a rotor, which has an impeller (10) through which there is a radial flow, and with a stator, which has a housing (11) and an insert (12) mounted on the housing (11), the insert (12) having a flow channel for a working fluid, namely a first flow passage (17) extending in the axial direction and a second flow passage (18) of the flow channel, which extends radially outward in an arc in relation to the first flow passage (17), at least in sections, and the insert piece (12) in the area an insert flange (15) is attached to a housing flange (16) of the housing (11) via connecting elements (14) in such a way that the impeller (10) can be dismantled and mounted with the housing (11) mounted, with an impact on the housing (11) - and deformation body (20) is mounted, which in the event of the impeller (10) bursting, prevents movement of the insert (12) in a form-fitting manner.
    公开号:CH712614B1
    申请号:CH00638/17
    申请日:2017-05-11
    公开日:2020-11-13
    发明作者:Kalchschmid Markus
    申请人:Man Energy Solutions Se；
    IPC主号:
    专利说明:

    The invention relates to a turbomachine.
    From DE 10 2010 027 762 B4 a fluid flow machine with a rotor and a stator is known. The rotor has an impeller with radial flow. The stator has a housing and an insert piece mounted on the housing. The insert delimits sections of a flow channel of the turbomachine for a working fluid, namely a flow passage of the flow channel extending in the axial direction and an arcuate, radially outwardly extending flow passage of the flow channel. According to DE 10 2010 027 762 B4, the insert piece is mounted on the housing, namely via connecting elements which extend through an insert piece flange of the insert piece and a corresponding housing flange of the housing. The insert is attached to the housing in such a way that the impeller can be dismantled and mounted when the housing is installed. To access the impeller, only the insert must be removed from the housing, but it is not necessary to dismantle the housing. As already stated, the insert is fastened to the housing via a large number of connecting elements designed as screws, whereby according to the prior art the connecting elements designed as screws, via which the insert is fastened to the housing, provide so-called containment protection. If the impeller bursts during operation, and if fragments of the impeller hit the insert, then according to the state of the art, the connecting elements designed as screws between insert and housing must absorb or absorb these forces. It is therefore necessary according to the prior art to provide a large number of such connecting elements for connecting the insert to the housing, some of which must also be designed as high-strength screws.
    Proceeding from this, the present invention is based on the object of creating a turbomachine with better containment protection. This object is achieved by a turbomachine according to claim 1. According to the invention, an impact and deformation body is mounted on the housing which, in the event of the impeller bursting, positively prevents movement of the insert.
    With the present invention, a completely new containment protection for a turbo machine is provided. Forces that act on the insert piece in the event of the impeller bursting do not have to be completely absorbed by the connecting elements via which the insert piece is mounted on the housing, rather the impact and deformation body mounted on the housing takes over the interception of these forces in that the insert comes to rest positively against the impact and deformation body and forces acting on the insert are intercepted and deformed via the impact and deformation body and transferred into the housing. The invention makes it possible on the one hand to hold the insert in a form-fitting manner on the housing above the impact and deformation body, on the other hand there is no need to dismantle the housing when accessing the impeller.
    Preferably, the impact and deformation body is inserted with a first section in a groove of the housing and connected to this first section via connecting elements to the housing, wherein the impact and deformation body protrudes with a second section from the groove of the housing and with this second section covers the insert in the area of the projection. These details enable the impact and deformation body to be easily mounted on the housing and the insert piece to be held on the housing in the event of the impeller bursting via a form fit, and the impeller can be mounted and removed when the housing is installed.
    According to an advantageous development, a gap is formed between the impact and deformation body and the insert piece, which is preferably dimensioned such that the insert piece comes to rest only after failure of the connecting elements via which the insert piece is attached to the housing . This further development of the invention uses a deformation path or shear path of the connecting elements, via which the insert is mounted on the housing, at the beginning of a damage case of the impeller to transform the forces acting on the insert. Only then is the insert used in a form-fitting manner on the impact and deformation body, which then takes over the further interception of the forces acting on the insert and ultimately transfers them into the housing.
    The impact and deformation body is preferably designed in one piece. Alternatively, it is formed in several parts from several segments. If the impact and deformation body is made in one piece, it preferably has a plurality of recesses on its circumference, via which it can then be inserted into the groove on the housing like a bayonet. The multi-part design of the impact and deformation body from several segments is structurally simpler.
    [0008] Preferred developments of the invention emerge from the dependent claims and the following description. Embodiments of the invention are explained in more detail with reference to the drawing, without being restricted thereto. It shows:<tb> Fig. 1 <SEP> shows a section from a turbomachine according to the invention.
    The invention relates to a flow machine, namely a radial flow machine with a radial flow impeller. The radial flow machine can be designed as a radial compressor or as a radial turbine. The invention is described below with reference to the embodiment of FIG. 1, which shows a radial flow machine designed as a radial compressor.
    The radial compressor shown in Fig. 1 in detail has a rotor with a radially flowed impeller 10. The impeller 10 is axially flowed against and radially flowed out.
    Furthermore, the turbomachine of FIG. 1 has assemblies of a stator, a compressor housing 11, an insert 12 mounted on the compressor housing 11 and a diffuser ring 13 of the stator being shown in FIG.
    The insert 12 is mounted on the compressor housing 11 via screw fasteners 14, these fasteners 14 extending through an insert flange 15 of the insert 12 and through a corresponding housing flange 16 of the compressor housing 11.
    The insert 12 is mounted on the compressor housing 11 such that after dismantling the insert 12 from the compressor housing 11, the impeller 10 can be mounted and dismantled without having to access the compressor housing 11 as such. The impeller 10 can accordingly be mounted and dismantled with the compressor housing 11 and the insert 12 removed.
    The stator-side insert 12 delimits sections, namely based on the rotor-side impeller 10 radially outside, a flow channel of the turbomachine for a working fluid.
    The impeller 10 is axially flowed against, the insert 12 delimiting in sections an axially extending first flow passage 17 of the flow channel, which is used for the flow of the impeller 10.
    Furthermore, the insert 12 delimits a radially outwardly extending flow passage 18 of the flow channel for the working fluid, namely radially outwardly adjacent to the impeller 10, the insert 12 having an arcuate contour in this area. Viewed in the flow direction, the diffuser ring 13, which preferably has stationary diffuser guide vanes 19, adjoins downstream of the impeller 10 and downstream of the insert 12.
    According to the invention, an impact and deformation body 20 is mounted on the housing 11. Then, when the impeller 10 fails during operation, i.e. in the event of the impeller 10 bursting, forces and moments act on the insert 12 which, when the connecting elements 14, via which the insert 12 is mounted on the compressor housing 11, fail, from Impact and deformation bodies 20 are intercepted and transferred into the compressor housing 11. In this case, the impact and deformation body 20 prevents a movement of the insert 12 in a form-fitting manner in the event of failure of the connecting elements 14 via which the insert 12 is attached to the compressor housing 11.
    As can be seen from Fig. 1, the impact and deformation body 20 covers the insert 12 in the region of its insert flange 15 in axial projection, at least in sections. Then, if the connecting elements 14, via which the insert 12 is mounted on the compressor housing 11, fail when the impeller 10 bursts due to the forces then acting on the insert 12, the insert 12 with its insert flange 15 is defined on the impact and deformation body 20 to the plant, whereby, as already stated, the impact and deformation body 20 then absorbs the corresponding forces and transmits them to the compressor housing 11.
    The impact and insert piece 20 is mounted on the compressor housing 11 via a plurality of connecting elements 21.
    The impact and deformation body 20 is inserted into a groove 22 of the compressor housing 11 with one section, namely a radially outer section, and protrudes from this groove 22 with a second section, namely a radially inner section. With this second, radially inner section protruding from the groove 22, the impact and deformation body covers the insert piece 12 in the area of its insert piece flange 15 in the axial projection.
    The connecting elements 21, via which the impact and deformation body 20 is mounted on the compressor housing 11, extend on the one hand through the compressor housing 11 and on the other hand through the first, radially outer section of the impact and deformation body 20 protruding into the groove 22.
    The impact and deformation body 20 can be formed in one piece or in several parts from several segments. When the impact and deformation body 20 is made in one piece, it preferably has a wave-like contour on its first, radially outer section in order to then thread it into the groove 22 of the compressor housing 11 like a bayonet. If the impact and deformation body 20 is formed in several parts from several segments, the impact and deformation body 20, namely its segments, can be inserted more easily into the groove 22 of the compressor housing 11 and mounted on the compressor housing 11 in segments.
    The one-piece or multi-piece impact and deformation body 20 is preferably a one-piece or segmented sheet steel.
    In the preferred embodiment shown in FIG. 1, a gap 23 is formed between the insert 12, namely the insert flange 15 thereof, and the impact and deformation body 20. This gap 23 is dimensioned in such a way that the insert 12 with its insert flange 15 only comes to rest after failure or shearing of the connecting elements 14 via which the insert 12 is mounted on the compressor housing 11.
    In this case, therefore, when the impeller 10 bursts to intercept the forces acting on the insert 12, the deformation path or shear path of the connecting elements 14 via which the insert 12 is mounted on the compressor housing 11 is used to reduce forces, with only after the failure of these connecting elements 14, via which the insert 12 is mounted on the compressor housing 11, i.e. after the insert 12 comes into contact with the impact and deformation body 20, the forces are intercepted by the impact and deformation body 20 and transferred to the compressor housing 11 .
    The invention therefore enables, in the event of the impeller 10 bursting, a form-fitting holding of the insert 12 on the compressor housing 11 and the introduction of forces acting on the insert 12 into the compressor housing 11 via the impact and deformation body 20, while still being mountable and the impeller 10 can be dismantled with the compressor housing 11 installed and the insert 12 removed from the compressor housing 11.
    A sheet steel or steel ring, which is mounted on the compressor housing 11 via its own connecting elements 21, is preferably used as the impact and deformation body 20. When the impeller 10 bursts, this impact and deformation body 20 transfers forces acting on the insert 12 into the compressor housing 11. As already stated, the gap 23 is preferably provided between the impact and deformation body 20 and the insert 12 so that in the event of a burst of the impeller 10, first the connecting elements 14, via which the insert 12 is mounted on the compressor housing 11, dissipate energy until they shear, only after this the insert flange 15 of the insert 12 comes to rest on the impact and deformation body 20 and as a result, an axial path of the insert 12 is positively limited and its movement in the axial direction is thereby stopped, whereby residual energy of the insert 12 is transferred via the impact and deformation body 20 into the compressor housing 11.
    List of reference symbols
    10 impeller 11 housing 12 insert 13 guide grille / diffuser (ring) 14 connecting element 15 insert flange 16 housing flange 17 flow passage 18 flow passage 19 diffuser guide vane 20 impact and deformation body 21 connecting element 22 groove 23 gap
    权利要求:
    Claims (8)
    [1]
    1. Turbomachine, with a rotor which has an impeller (10) through which there is a radial flow, and with a stator which has a housing (11) and an insert (12) mounted on the housing (11), the insert (12) having a Flow channel for a working fluid, namely a first flow passage (17) extending in the axial direction and a second flow passage (18) of the flow channel, which extends radially outward in an arc shape relative to the first flow passage (17), at least in sections, and wherein the insert (12) is fastened in the area of an insert flange (15) to a housing flange (16) of the housing (11) via connecting elements (14) in such a way that the impeller (10) can be dismantled and mounted with the housing (11) mounted, characterized in that on the housing ( 11) an impact and deformation body (20) is mounted which, in the event of the impeller (10) bursting, prevents movement of the insert (12) in a form-fitting manner.
    [2]
    2. Turbomachine according to Claim 1, characterized in that the impact and deformation body (20) covers the insert piece (12) in the area of the insert piece flange (15) in the projection.
    [3]
    3. Turbomachine according to claim 1 or 2, characterized in that the impact and deformation body (20) is inserted with a first section into a groove (22) of the housing (11) and on this first section via connecting elements (21) to the housing (11) is connected, and that the impact and deformation body (20) protrudes with a second section from the groove (22) of the housing (11) and with this second section the insert (12) in the region of the insert flange (15) in the projection covered.
    [4]
    4. Turbomachine according to one of Claims 1 to 3, characterized in that the impact and deformation body (20) is constructed in one piece.
    [5]
    5. Turbomachine according to one of Claims 1 to 3, characterized in that the impact and deformation body (20) is constructed in several parts and comprises several segments.
    [6]
    6. Turbomachine according to one of Claims 1 to 5, characterized in that the impact and deformation body (20) is designed as a one-piece or segmented steel sheet.
    [7]
    7. Turbomachine according to one of claims 1 to 6, characterized in that a gap (23) is formed between the impact and deformation body (20) and the insert piece (12).
    [8]
    8. The turbo machine according to claim 7, characterized in that the gap (23) is dimensioned in such a way that, in the event of the impeller (10) bursting, the insert piece (12) only opens after the connecting elements (14) over which the insert piece (12 ) is attached to the housing (11), comes to rest on the impact and deformation body (20).
    类似技术:
    公开号 | 公开日 | 专利标题
    EP2960437B1|2018-08-08|Variable guide vane device for a gas turbine and gas turbine equipped with such a device
    EP2123860B1|2017-06-07|Combined vortex reducer
    EP2503246B1|2018-12-05|Segmented combustion chamber head
    EP3056813A1|2016-08-17|Seal of an edge gap between effusion shingle of a gas turbine combustor
    EP2846002A1|2015-03-11|Gas turbine
    DE102004027594A1|2005-12-29|Turbomachine with radially flowing compressor wheel
    DE102014220317A1|2016-04-07|Aircraft gas turbine engine with shock absorbing element for fan blade loss
    CH698497B1|2009-08-31|Turbomachine with radial compressor and perfused with holding device.
    CH698022B1|2009-04-30|Flow machine, in particular exhaust gas turbochargers.
    EP1719879B1|2008-01-30|Burst protection device for radial compressors
    EP3203035B1|2020-01-15|Blade system for a flow machine
    DE202014002981U1|2014-04-16|Axial turbine for an exhaust gas turbocharger
    WO2016041800A1|2016-03-24|Housing of a radial flow turbo-machine, and radial flow turbo-machine
    EP2611992B1|2018-03-21|Housing structure of a turbomachine
    EP3287608B1|2019-05-01|Internal ring for a guide- blade rim of a turbomachine
    CH712614B1|2020-11-13|Turbo machine.
    EP2707629B1|2015-08-26|Apparatus for sealing off a pump space of a rotary piston pump, and rotary piston pump having same
    DE202015105626U1|2016-02-18|Turbine rotor blade with movable tip
    WO2008055717A1|2008-05-15|Housing connection of an exhaust gas turbocharger
    DE102018129128A1|2020-05-20|Insert for a turbocharger
    CH714650A2|2019-08-15|Radial compressor.
    DE102014218936A1|2016-03-24|Radial turbofan energy machine, method of assembly
    DE102016203731A1|2017-09-14|steam turbine
    DE102016217286A1|2018-03-15|pressure vessel
    WO2018184788A1|2018-10-11|Method for sealing an annular gap in a turbine, and turbine
    同族专利:
    公开号 | 公开日
    DE102016111081A1|2017-12-21|
    CH712614A2|2017-12-29|
    KR20170142914A|2017-12-28|
    JP2018009564A|2018-01-18|
    JP6900237B2|2021-07-07|
    CN107524481A|2017-12-29|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    TW576886B|2001-05-04|2004-02-21|Abb Turbo Systems Ag|Turbocharger having a radial-flow compressor and burst-protection arrangement for a radial-flow compressor of a turbocharger|
    DE102004028133C5|2004-06-09|2017-10-26|Man Diesel & Turbo Se|Turbomachine, in particular exhaust gas turbocharger|
    DE502005002724D1|2005-05-03|2008-03-20|Abb Turbo Systems Ag|Burst protection device for centrifugal compressors|
    EP2216516A1|2009-02-04|2010-08-11|ABB Turbo Systems AG|Burst protection device for radial compressor|
    DE102010027762B4|2010-04-15|2015-06-25|Man Diesel & Turbo Se|Insert for a turbomachine and thus equipped turbomachine|
    DE102010064025A1|2010-12-23|2012-06-28|Abb Turbo Systems Ag|Burst protection|
    JP6391970B2|2014-03-31|2018-09-19|三菱重工業株式会社|Centrifugal compressor, supercharger, centrifugal compressor manufacturing method, and silencer|
    JP6404082B2|2014-10-28|2018-10-10|三菱重工業株式会社|Centrifugal compressor and supercharger provided with the same|
    法律状态:
    2018-07-31| PFA| Name/firm changed|Owner name: MAN ENERGY SOLUTIONS SE, DE Free format text: FORMER OWNER: MAN DIESEL AND TURBO SE, DE |
    优先权:
    申请号 | 申请日 | 专利标题
    DE102016111081.7A|DE102016111081A1|2016-06-17|2016-06-17|flow machine|
    [返回顶部]