EP0891471B1 - Verfahren und vorrichtung zum schubausgleich bei einer turbomaschine - Google Patents
Verfahren und vorrichtung zum schubausgleich bei einer turbomaschine Download PDFInfo
- Publication number
- EP0891471B1 EP0891471B1 EP97918065A EP97918065A EP0891471B1 EP 0891471 B1 EP0891471 B1 EP 0891471B1 EP 97918065 A EP97918065 A EP 97918065A EP 97918065 A EP97918065 A EP 97918065A EP 0891471 B1 EP0891471 B1 EP 0891471B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- inner casing
- turbomachine
- thrust compensation
- axial
- 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
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000010276 construction Methods 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims abstract 2
- 239000012530 fluid Substances 0.000 claims description 9
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- 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
- F01D25/26—Double casings; Measures against temperature strain in casings
-
- 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
- F01D25/26—Double casings; Measures against temperature strain in casings
- F01D25/265—Vertically split casings; Clamping arrangements therefor
-
- 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
- F01D3/00—Machines or engines with axial-thrust balancing effected by working-fluid
- F01D3/04—Machines or engines with axial-thrust balancing effected by working-fluid axial thrust being compensated by thrust-balancing dummy piston or the like
Definitions
- the present invention relates to a method and a Device in a turbomachine with an outer and a Inner housing or guide vane carrier for thrust compensation.
- the field of application of the invention is included Turbomachines in pot design, the pressure of a axial fluid flowing through the turbomachine in the longitudinal direction of the shaft at least on the inner housing caused.
- DE 22 18 500 is a multi-shell housing a steam turbine for high steam pressures and temperatures described.
- live steam comes at high pressure into the inner case. After an expansion of about 20% of the The entire gradient of the turbine part is the steam through drilling led into the outer housing and so presses in the area further expansion course the inner housing in the area of the joints.
- guide vane carrier is chosen. in this connection the full live steam pressure is in the space between inside and Outer housing and thus presses the two support halves together.
- the term further includes the term "Inner housing" is always the constructive solution with a guide vane carrier.
- DE 22 18 500 discloses a multi-shell Steam turbine housing for high steam pressures and temperatures.
- An inner shell is made using a support ring clamped against the outer housing and thus axially fixed.
- the US 3,754,833 in turn or its priority document, the DE 20 54 465 describes a device for radial-centric heat-moving storage and centering of shaft seal housings on the outer casing of turbomachinery.
- the turbine shown there has a pot housing an axis-normal parting line.
- a carrying the guide vanes Inner housing is in the pot housing on a Lagerund Centering point used. This centering point will formed by a Uhde board cutter closure.
- Bypass channels in the inner housing are used for axial thrust compensation.
- the object of the present invention is therefore to create of a method for thrust compensation in a turbomachine and a corresponding design of the same.
- the invention is intended to produce axial forces in the longitudinal direction balance the wave.
- the invention provides that at least a first surface of the Exterior of part of the inner housing for axial thrust compensation divided into two sections for axial thrust compensation is applied, each with different pressure a distinction between the two pressures caused by at least one means, in particular a seal becomes.
- the exterior of a part of the inner housing is preferred pressurized to compensate for axial thrust, which is at least as large as the outlet pressure of the Is fluid, and preferably about as large as the inlet pressure.
- the Pressure for axial thrust compensation of the axial force of the outlet pressure towards the inner housing Because of the overlay both pressures result in a reduced resulting Pressure that also causes less thrust.
- This axial thrust compensation is particularly on the inner housing the turbomachine feasible. This ensures that the previous high construction costs for fixing the inner housing can be reduced. The occurring on the fixing elements Surface pressures are therefore lower and therefore lead also to smaller deformations.
- the invention is the pressure on the outside Part of the inner case according to the operating conditions such as full or partial load. By suitable The pressure is then controlled on the inner housing occurring axial thrust adjustable.
- the suitable means preferably a seal.
- the axial thrust compensation of the inner housing is therefore not can only be influenced by the pressure, but also by the Pressure available effective area to form a Axial force.
- This acting surface becomes the first surface now divided into two areas by the mean.
- the active surface comprises at least one Part of the outer face of the inner case.
- the machine has the possibility of finding a suitable one Dimension of the outer part of the inner housing for Axial thrust compensation to make this thrust so small to keep as possible.
- the axial thrust is also a part of a turbine Variation of the areas, determined by means of the diameter one or two I-ring seals, also adjustable.
- the seal itself is thus pressurized and particularly burdened. Because of the seal it is on both Partial pressure acting between the inside and External housing attachable.
- Figure 1 shows an embodiment of an inventive Turbo machine 1, a high-pressure turbine 1 in pot design, which has an inner housing 2 and an outer housing 3.
- the fluid 4 flowing through the turbomachine 1 also joins the inlet pressure P1 and leaves the high-pressure turbine 1 again with the outlet pressure P2.
- the pressure difference between the inlet and outlet pressure leads to an axial thrust not only on the inner housing 2 but also on the shaft 5.
- the inner housing 2 has one on its outside Surface A1, which acts on the inlet pressure P1 becomes.
- a pressure on the surface A1 is preferably at least this large as the outlet pressure P2 of the fluid 4 from the turbomachine 1.
- the pressure on the area A1 can also as large as the inlet pressure of the fluid and / or a pressure be inside the inner housing 2.
- the Area A1 part of the end face of the inner housing 2.
- the Axial thrust arising on this surface A1 overlaps the of the surface A2 'created axial force on the inner housing 2, whereby axial thrust compensation takes place on this.
- the fixation 6 of the inner housing 2 relative to the outer housing 3 is lower surface pressures due to this axial thrust compensation subjected.
- This allows a variety of construction options to initiate an axial thrust in the outer housing 3, for. B. can in the previous state of Support rings used in technology are eliminated.
- the overall structure Such a turbomachine according to the invention can be thus simplify due to the improved axial thrust compensation.
- the axial pressure transmitting Area A1 of the outer part of the inner casing 2 by means arranged around the shaft 5 7 limited.
- This means 7 advantageously a seal, limits the attacking pressure P1 to the axial pressure transmitting one Area A1, so that by using means 7 a precisely defined axial thrust compensation can take place.
- the use of such a means 7 Possibility to add another area A3 to the outer part of the To apply another pressure P3 to the inner housing 2.
- the pressure P3 in connection with the area A3 then generates also a contribution to axial thrust compensation.
- the areas A1 and A3 together therefore form a for the purposes of the invention first surface of the outer part of the inner housing 2.
- the Areas A1 and A3 individually are the partial areas.
- the pressure P3 which is advantageous compared to the pressure P1 lower, serves as a barrier pressure. Pressure and flow losses over the or the seals as a means 7 can can be reduced by means of this advantageous pressure rating. This makes the seal, especially an I-ring seal not only pressurized, but also with the Can withstand pressure. By using several means 7 can For a better pressure rating also other, separate from each other Surfaces for axial thrust compensation are created, like this by the dotted line 7 with the area A3 ' and the pressure P3 'is indicated. Because of the building geometry the turbomachine 1 is advantageously the seal 7 between the inner part of the outer housing 3 and the outer Part of the inner housing 2 attached, in particular so that it direct contact with the inner housing 2 and the outer housing 3 Has.
- the invention provides that an axial thrust compensation not only on the inner housing 2 but also on the Wave 5 takes place.
- the turbomachine is designed so that an axial pressure transmitting surface A2 '' with the outlet pressure P2 is applied. So, because of the Pressure difference between the inlet pressure P1 and the outlet pressure P2 above the blades, axial thrust occurring at the Wave 5 are at least partially compensated.
- Figure 2 shows the arrangement in a schematic representation a high pressure part HD, a medium pressure part MD and of a low pressure part ND of a turbine on a shaft.
- This illustration shows that the forces from the pressure P1 on surface A1 and from print P3 on surface A3 act in the negative X direction. The force from the pressure P2 however, these forces have a positive effect on the area A2 '' X direction opposite.
- the invention is therefore not only one Part turbine, but rather on a strand of turbo machines connected in series for axial thrust compensation applicable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Basic Packing Technique (AREA)
Description
- Figur 1
- eine erfindungsgemäße stationäre Hochdruckturbine in Topfbauweise und
- Figur 2
- eine schematische Anordnung eines Turbinenstranges.
Claims (12)
- Verfahren zum Axialschubausgleich bei einer Turbomaschine (1) mit einem Außen- (3) und einem Innengehäuse (2) beziehungsweise Leitschaufelträger, insbesondere einer Turbokraftmaschine in Topfbauweise, wobei der Druck eines durch die Turbomaschine strömenden Fluides (4) eine Axialkraft in Längsrichtung der Welle (5) mindestens auf das Innengehäuse (2) verursacht und ein Äußeres eines Teiles des Innengehäuses (2) mit einem Druck zum Axialschubausgleich beaufschlagt wird,
dadurch gekennzeichnet, daß mindestens eine erste Fläche (A1+A3) des Äußeren des Teiles des Innengehäuses (2) zu einem Axialschubausgleich in zwei Teilflächen (A1, A3) zum Axialschubausgleich unterteilt wird, die jeweils mit unterschiedlichem Druck (P1, P3) beaufschlagt werden, wobei eine Abgrenzung zwischen beiden Drücken (P1, P3) durch mindestens ein Mittel (7), insbesonders eine Dichtung, verursacht wird. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, daß das Mittel (7) selbst, insbesondere eine I-Ringdichtung, mit Druck (P1, P3) beaufschlagt, insbesondere belastet, wird. - Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß der auf beiden Teilflächen (A1, A3) jeweils wirkende Druck (P1, P3) zwischen Innen- (2) und Außengehäuse (3) aufgebracht wird. - Verfahren nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet, daß der Druck (P1, P3) auf der Teilfläche (A1, A3) des Äußeren des Teiles des Innengehäuses (2) entsprechend einer jeweiligen Betriebsbedingung der Turbomaschine eingestellt wird. - Verfahren nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß der Druck (P1, P3) auf eine Stirnfläche des Innengehäuses (2) aufgebracht wird. - Turbomaschine (1) mit einem Außen- (3) und einem Innengehäuse (2) beziehungsweise Leitschaufelträger, insbesondere eine Turbokraftmaschine in Topfbauweise, wobei der Austrittsdruck (P2) eines durch die Turbomaschine (1) strömenden Fluides (4) eine Axialkraft in Längsrichtung der Welle (5) mindestens auf das Innengehäuse (2) verursacht,
dadurch gekennzeichnet, daß ein Mittel (7) zwei axialdruckübertragende Teilflächen (A1, A3) einer ersten Fläche (A1+A3) an einem Äußeren eines Teiles des Innengehäuses (2) voneinander trennt, die jeweils zu einem Axialschubausgleich (5) beitragen. - Turbomaschine nach Anspruch 6,
dadurch gekennzeichnet, daß die beiden axialdruckübertragenden Teilflächen (A1, A3) mit jeweils unterschiedlichem Druck (P1, P3) beaufschlagbar sind. - Turbomaschine nach Anspruch 7,
dadurch gekennzeichnet, daß das Mittel (7) mit Druck (P1, P3) beaufschlagbar ist, insbesondere mit zwei unterschiedlichen Drücken gleichzeitig. - Turbomaschine nach Anspruch 7 oder 8,
dadurch gekennzeichnet, daß das Mittel (7) zwischen dem Innengehäuse (2) und dem Außengehäuse (3) angeordnet ist, insbesondere so, daß es direkten Kontakt zu dem Innengehäuse (2) und dem Außengehäuse (3) hat. - Turbomaschine nach einem der Ansprüche 6 bis 9,
dadurch gekennzeichnet, daß das Mittel (7) eine Dichtung, vorzugsweise eine I-Ringdichtung, ist, die insbesondere um die Welle (5) herum angeordnet ist. - Turbomaschine nach einem der Ansprüche 6 bis 10,
dadurch gekennzeichnet, daß die druckübertragende Teilfläche (A1, A3) zum Schubausgleich zumindest teilweise eine Stirnfläche des Innengehäuses umfaßt. - Turbomaschine nach einem der Ansprüche 6 bis 11,
dadurch gekennzeichnet, daß die druckübertragende Teilfläche (A1, A3) zum Schubausgleich mit dem Eintrittsdruck (P1) oder mit einem Druck aus dem Inneren des Innengehäuses (2) beaufschlagbar ist.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19614335 | 1996-04-11 | ||
| DE19614335 | 1996-04-11 | ||
| PCT/DE1997/000674 WO1997038209A1 (de) | 1996-04-11 | 1997-04-02 | Verfahren und vorrichtung zum schubausgleich bei einer turbomaschine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0891471A1 EP0891471A1 (de) | 1999-01-20 |
| EP0891471B1 true EP0891471B1 (de) | 2002-06-26 |
Family
ID=7791006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97918065A Expired - Lifetime EP0891471B1 (de) | 1996-04-11 | 1997-04-02 | Verfahren und vorrichtung zum schubausgleich bei einer turbomaschine |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US6213710B1 (de) |
| EP (1) | EP0891471B1 (de) |
| JP (1) | JP2000508040A (de) |
| KR (1) | KR20000005303A (de) |
| CN (1) | CN1081724C (de) |
| AT (1) | ATE219816T1 (de) |
| CZ (1) | CZ326498A3 (de) |
| DE (1) | DE59707599D1 (de) |
| PL (1) | PL183594B1 (de) |
| RU (1) | RU2175721C2 (de) |
| WO (1) | WO1997038209A1 (de) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1029154B1 (de) * | 1997-11-03 | 2003-04-02 | Siemens Aktiengesellschaft | Turbinengehäuse sowie verfahren zu dessen herstellung |
| JP3986873B2 (ja) * | 2001-05-08 | 2007-10-03 | 花王株式会社 | 液体洗浄剤組成物 |
| EP1314859B1 (de) | 2001-11-22 | 2006-08-02 | Siemens Aktiengesellschaft | Verfahren zum Herstellen von Dampfturbinen |
| JP2006016976A (ja) * | 2004-06-30 | 2006-01-19 | Toshiba Corp | タービンノズル支持装置および蒸気タービン |
| US7195443B2 (en) * | 2004-12-27 | 2007-03-27 | General Electric Company | Variable pressure-controlled cooling scheme and thrust control arrangements for a steam turbine |
| US7520721B2 (en) * | 2006-09-19 | 2009-04-21 | General Electric Company | System and method for aligning and sealing a turbine shell assembly |
| US8256575B2 (en) * | 2007-08-22 | 2012-09-04 | General Electric Company | Methods and systems for sealing rotating machines |
| WO2009123301A2 (en) * | 2008-03-31 | 2009-10-08 | Mitsubishi Heavy Industries, Ltd. | Rotary machine |
| DE102008022966B4 (de) * | 2008-05-09 | 2014-12-24 | Siemens Aktiengesellschaft | Rotationsmaschine |
| EP2192266A1 (de) * | 2008-11-26 | 2010-06-02 | Siemens Aktiengesellschaft | Rotorvorrichtung für eine Dampfturbine und Dampfturbine |
| JP2010174795A (ja) * | 2009-01-30 | 2010-08-12 | Mitsubishi Heavy Ind Ltd | タービン |
| CH701914A1 (de) | 2009-09-30 | 2011-03-31 | Alstom Technology Ltd | Dampfturbine mit Entlastungsnut am Rotor im Bereich des Schubausgleichskolbens. |
| EP2333253A1 (de) * | 2009-12-08 | 2011-06-15 | Siemens Aktiengesellschaft | Innengehäuse für eine Strömungsmaschine |
| KR20250154299A (ko) | 2025-10-01 | 2025-10-28 | (주)태일기공 | 유가금속 정광 처리시 발생하는 미세먼지와 폐수 재활용 처리 장치 및 그 방법 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE281253C (de) * | ||||
| FR1094273A (fr) * | 1953-08-31 | 1955-05-16 | Siemens Ag | Turbine à double enveloppe fonctionnant à forte pression d'échappement |
| DE1152703B (de) * | 1959-12-14 | 1963-08-14 | Licentia Gmbh | Vielstufige Gleichdruckturbine |
| CH499012A (de) * | 1968-12-03 | 1970-11-15 | Siemens Ag | Anordnung zur axial festen und radial beweglichen Lagerung von Turbinengehäuseteilen |
| JPS5227282B2 (de) | 1970-11-05 | 1977-07-19 | ||
| DE2218500B2 (de) * | 1972-04-17 | 1974-01-31 | Kraftwerk Union AG, 4330 Mülheim | Mehrschaliges gehaeuse einer dampfturbine fuer hohe dampfdruecke und dampftemperaturen |
| JPS59213907A (ja) * | 1983-05-19 | 1984-12-03 | Fuji Electric Co Ltd | つぼ型タ−ビン |
| CA1326476C (en) * | 1988-09-30 | 1994-01-25 | Vaclav Kulle | Gas compressor having dry gas seals for balancing end thrust |
-
1997
- 1997-04-02 EP EP97918065A patent/EP0891471B1/de not_active Expired - Lifetime
- 1997-04-02 AT AT97918065T patent/ATE219816T1/de not_active IP Right Cessation
- 1997-04-02 WO PCT/DE1997/000674 patent/WO1997038209A1/de not_active Ceased
- 1997-04-02 DE DE59707599T patent/DE59707599D1/de not_active Expired - Lifetime
- 1997-04-02 RU RU98120399/06A patent/RU2175721C2/ru not_active IP Right Cessation
- 1997-04-02 JP JP9535741A patent/JP2000508040A/ja active Pending
- 1997-04-02 CZ CZ983264A patent/CZ326498A3/cs unknown
- 1997-04-02 CN CN97193662A patent/CN1081724C/zh not_active Expired - Lifetime
- 1997-04-02 KR KR1019980708015A patent/KR20000005303A/ko not_active Abandoned
- 1997-04-02 PL PL97329236A patent/PL183594B1/pl not_active IP Right Cessation
-
1998
- 1998-10-13 US US09/170,183 patent/US6213710B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| KR20000005303A (ko) | 2000-01-25 |
| JP2000508040A (ja) | 2000-06-27 |
| PL329236A1 (en) | 1999-03-15 |
| US6213710B1 (en) | 2001-04-10 |
| EP0891471A1 (de) | 1999-01-20 |
| CZ326498A3 (cs) | 1999-02-17 |
| PL183594B1 (pl) | 2002-06-28 |
| CN1081724C (zh) | 2002-03-27 |
| RU2175721C2 (ru) | 2001-11-10 |
| CN1215449A (zh) | 1999-04-28 |
| ATE219816T1 (de) | 2002-07-15 |
| WO1997038209A1 (de) | 1997-10-16 |
| DE59707599D1 (de) | 2002-08-01 |
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