WO2006042837A1 - System for compressing gases - Google Patents

System for compressing gases Download PDF

Info

Publication number
WO2006042837A1
WO2006042837A1 PCT/EP2005/055302 EP2005055302W WO2006042837A1 WO 2006042837 A1 WO2006042837 A1 WO 2006042837A1 EP 2005055302 W EP2005055302 W EP 2005055302W WO 2006042837 A1 WO2006042837 A1 WO 2006042837A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas turbine
shaft
compressor
gases
rotor
Prior art date
Application number
PCT/EP2005/055302
Other languages
German (de)
French (fr)
Inventor
Maria Bade
Axel MÖHLE
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2006042837A1 publication Critical patent/WO2006042837A1/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K17/00—Asynchronous induction motors; Asynchronous induction generators
    • H02K17/02—Asynchronous induction motors
    • H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
    • H02K17/165—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors characterised by the squirrel-cage or other short-circuited windings
    • 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
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10—Adaptations for driving, or combinations with, electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/26—Starting; Ignition
    • F02C7/268—Starting drives for the rotor, acting directly on the rotor of the gas turbine to be started
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
    • F02B37/04—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump
    • F02B37/11—Engines with exhaust drive and other drive of pumps, e.g. with exhaust-driven pump and mechanically-driven second pump driven by other drive at starting only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/02—Drives of pumps; Varying pump drive gear ratio
    • F02B39/08—Non-mechanical drives, e.g. fluid drives having variable gear ratio
    • F02B39/10—Non-mechanical drives, e.g. fluid drives having variable gear ratio electric

Definitions

  • the invention relates to a system for the compression of gases.
  • gas turbines are frequently used to drive compressor trains. Since a gas turbine does not come solely on their nominal speed, an electric machine, a sogenann ⁇ ter starter strand required for the acceleration of the driven Wellen ⁇ to the ignition speed of the gas turbine.
  • the starter motor is placed at the end of the driven shaft train.
  • This is disadvantageous in terms of the dynamics Rotordy ⁇ , also the accessibility is turbine maintenance at the gas ⁇ and / or the compressor trains only be ⁇ given limits. Therefore, the aim is to arrange the starter motor between the compressor train and the gas turbine.
  • the shaft of the electric machine must then be able to absorb and transmit the drive torque of the gas turbine. This considerably complicates the dimensioning of the conventionally used electrical machines, such as synchronous motors or asynchronous motors, since only small machine diameters can be used due to the high speeds required by the process. As a result, if necessary, the required head core diameter is reduced and possibly even undershot so that these machines are no longer executable.
  • the object of the invention is to provide a system for compressing gases, which avoids the above-mentioned disadvantages.
  • the driving moment is formed by the eddy currents in the stator shaft associated with the shaft. Since the Asynchron ⁇ motor is only switched on for a short time, the comparatively ⁇ poor efficiency and power factor compared to conventional motors of minor importance.
  • the shaft between the gas turbine and the compressor train can be optimized in particular in the arrangement of the starter motor between Gasturbi ⁇ ne and compressor in terms of torque transmission and rotor dynamics within wide limits.
  • the wave can be adapted to the present moment to be transmitted. Since no rotor winding for the asynchronous machine is to be provided on the shaft, but only the eddy currents are used in the massive iron, the restrictions are minimized by the electric starter drive.
  • the asynchronous machine 4 comprises, inter alia, a stator 5 and preference ⁇ example illustrating a rotor 6 of which is solid, a portion of the shaft assembly. 3 A part of the shaft strand 3 forms the solid rotor 6.
  • the shaft strand 3 advantageously has the same material along its axial length.
  • the shaft train 3 can also, as shown in FIG 2, in the region of the stator 5 radially something be reset.
  • the asynchronous motor 4 is used as a starter to accelerate the shaft train 3 to the firing speed of the gas turbine 2. It is thereby that the rotor isAm ⁇ 6 with massive bales without cage coil for this application, the driving torque is det gebil ⁇ only by the eddy currents in the ball surface of the rotor (6). Since the asynchronous motor is switchedIch ⁇ only for starting operation that compared to conventional machines comparatively poor efficiency and power factor ver ⁇ is negligible.

Abstract

The invention relates to a system for compressing gases with at least one compressor (1) which is driven by a gas turbine (2) via a shaft line (3). An asynchronous motor (4) having a massive rotor (6) is used as the starter and is mounted between the compressor (1) and the gas turbine (2).

Description

Beschreibungdescription
System zur Verdichtung von GasenSystem for the compression of gases
Die Erfindung betrifft ein System zur Verdichtung von Gasen.The invention relates to a system for the compression of gases.
Bei erfindungsgemäßen Systemen zur Verdichtung von Gasen wer¬ den häufig Gasturbinen zum Antrieb von Verdichtersträngen eingesetzt. Da eine Gasturbine nicht allein auf ihre Nenn- drehzahl kommt, wird eine elektrische Maschine, ein sogenann¬ ter Starter, zur Beschleunigung des angetriebenen Wellen¬ strangs auf die Zünddrehzahl der Gasturbine benötigt.In systems according to the invention for compressing gases, gas turbines are frequently used to drive compressor trains. Since a gas turbine does not come solely on their nominal speed, an electric machine, a sogenann ¬ ter starter strand required for the acceleration of the driven Wellen¬ to the ignition speed of the gas turbine.
Der Starter-Motor wird am Ende des angetriebenen Wellen- Strangs angeordnet. Dies ist nachteilig im Sinne der Rotordy¬ namik, außerdem ist die Zugänglichkeit bei Wartung der Gas¬ turbine und/oder der Verdichterstränge lediglich einge¬ schränkt gegeben. Daher wird angestrebt den Starter-Motor zwischen Verdichterstrang und Gasturbine anzuordnen. Neben dem zu übertragenden Moment der elektrischen Maschine muss aber dann die Welle der elektrischen Maschine auch das An¬ triebsmoment der Gasturbine aufnehmen und übertragen können. Dies erschwert die Dimensionierung der herkömmlich eingesetz¬ ten elektrischen Maschinen wie Synchron- oder Asynchronmoto- ren erheblich, da aufgrund der vom Prozess geforderten hohen Drehzahlen nur geringe Maschinendurchmesser einsetzbar sind. Dadurch reduziert sich gegebenenfalls der erforderliche WeI- lenkerndurchmesser und wird eventuell sogar unterschritten, so dass diese Maschinen nicht mehr ausführbar sind.The starter motor is placed at the end of the driven shaft train. This is disadvantageous in terms of the dynamics Rotordy ¬, also the accessibility is turbine maintenance at the gas ¬ and / or the compressor trains only be ¬ given limits. Therefore, the aim is to arrange the starter motor between the compressor train and the gas turbine. In addition to the moment of the electric machine to be transmitted, however, the shaft of the electric machine must then be able to absorb and transmit the drive torque of the gas turbine. This considerably complicates the dimensioning of the conventionally used electrical machines, such as synchronous motors or asynchronous motors, since only small machine diameters can be used due to the high speeds required by the process. As a result, if necessary, the required head core diameter is reduced and possibly even undershot so that these machines are no longer executable.
Ausgehend davon liegt der Erfindung die Aufgabe zugrunde, ein System zur Verdichtung von Gasen vorzusehen, das die oben ge¬ nannten Nachteile vermeidet .Proceeding from this, the object of the invention is to provide a system for compressing gases, which avoids the above-mentioned disadvantages.
Die Lösung der gestellten Aufgabe gelingt durch ein System zur Verdichtung von Gasen mit zumindest einem Verdichter, der durch eine Gasturbine über einen Wellenstrang angetrieben wird, wobei ein Asynchronmotor mit massiven Läufer als Star¬ ter einsetzbar ist.The solution of the problem is achieved by a system for the compression of gases with at least one compressor, which is driven by a gas turbine via a shaft train is, with an asynchronous motor with solid rotor as Star¬ ter is used.
Das antreibende Moment wird durch die Wirbelströme in dem dem Stator zugeordneten Wellenstrang gebildet. Da der Asynchron¬ motor nur kurzzeitig eingeschaltet wird, ist der vergleichs¬ weise schlechte Wirkungsgrad und Leistungsfaktor gegenüber herkömmlichen Motoren von untergeordneter Bedeutung.The driving moment is formed by the eddy currents in the stator shaft associated with the shaft. Since the Asynchron¬ motor is only switched on for a short time, the comparatively ¬ poor efficiency and power factor compared to conventional motors of minor importance.
Die Welle zwischen Gasturbine und Verdichterstrang kann ins¬ besondere bei Anordnung des Starter-Motors zwischen Gasturbi¬ ne und Verdichter hinsichtlich der Drehmomentdurchleitung und der Rotordynamik in weiten Grenzen optimiert werden. Die Wel¬ le kann dem vorliegenden zu übertragenden Moment angepasst werden. Da keine Läuferwicklung für die Asynchronmaschine auf der Welle vorzusehen ist, sondern nur die Wirbelströme im massiven Eisen genutzt werden, sind die Einschränkungen durch den elektrischen Starter-Antrieb minimiert.The shaft between the gas turbine and the compressor train can be optimized in particular in the arrangement of the starter motor between Gasturbi ¬ ne and compressor in terms of torque transmission and rotor dynamics within wide limits. The wave can be adapted to the present moment to be transmitted. Since no rotor winding for the asynchronous machine is to be provided on the shaft, but only the eddy currents are used in the massive iron, the restrictions are minimized by the electric starter drive.
Die Erfindung sowie weitere vorteilhafte Ausgestaltungen der Erfindung gemäß Merkmalen der Unteransprüche werden im fol¬ genden anhand eines schematisch dargestellten Ausführungsbei¬ spiels in der Zeichnung näher erläutert. Darin zeigt:The invention and further advantageous embodiments of the invention according to features of the subclaims are explained in more detail in the fol¬ ing with reference to a schematically Ausführungsbei¬ game in the drawing. It shows:
FIG 1, 2 ein System zur Verdichtung von Gasen.1, 2 a system for the compression of gases.
FIG 1 zeigt ein System zur Verdichtung von Gasen mit einem Verdichter 1, der einen Wellenstrang 3 aufweist, wobei an diesem Wellenstrang 3 auch die Gasturbine 2 und eine elektri- sehe Maschine 4, insbesondere eine Asynchronmaschine angeord¬ net sind. Die Asynchronmaschine 4 weist u.a. einen Stator 5 und einen Läufer 6 aus, der massiv ausgebildet ist, vorzugs¬ weise ein Teil des Wellenstrangs 3 darstellt. Ein Teil des Wellenstranges 3 bildet den massiven Läufer 6. Der Wellen- sträng 3 weist vorteilhafterweise auf seiner axialen Länge das gleiche Material auf. Der Wellenstrang 3 kann auch, wie in FIG 2 dargestellt, im Bereich des Stators 5 radial etwas zurückgesetzt sein. Da die Gasturbine 2 nicht alleine auf Nenndrehzahl kommt, wird der Asynchronmotor 4 als Starter zur Beschleunigung des Wellenstranges 3 auf die Zünddrehzahl der Gasturbine 2 eingesetzt. Dadurch, dass der Läufer 6 mit mas- siven Ballen ohne Käfigwicklung für diese Anwendung einge¬ setzt wird, wird das antreibende Moment lediglich durch die Wirbelströme in der Ballenoberfläche des Läufers (6) gebil¬ det. Da der Asynchronmotor nur für den Start-Vorgang einge¬ schaltet wird, ist der gegenüber herkömmlichen Maschinen ver- gleichsweise schlechte Wirkungsgrad und Leistungsfaktor ver¬ nachlässigbar. 1 shows a system for compressing gases with a compressor 1, which has a shaft assembly 3, wherein at this shaft assembly 3, the gas turbine 2 and an electric machine see 4, in particular an asynchronous angeord ¬ net are. The asynchronous machine 4 comprises, inter alia, a stator 5 and preference ¬ example illustrating a rotor 6 of which is solid, a portion of the shaft assembly. 3 A part of the shaft strand 3 forms the solid rotor 6. The shaft strand 3 advantageously has the same material along its axial length. The shaft train 3 can also, as shown in FIG 2, in the region of the stator 5 radially something be reset. Since the gas turbine 2 is not alone on rated speed, the asynchronous motor 4 is used as a starter to accelerate the shaft train 3 to the firing speed of the gas turbine 2. It is thereby that the rotor is einge¬ 6 with massive bales without cage coil for this application, the driving torque is det gebil ¬ only by the eddy currents in the ball surface of the rotor (6). Since the asynchronous motor is switched einge¬ only for starting operation that compared to conventional machines comparatively poor efficiency and power factor ver ¬ is negligible.

Claims

Patentansprüche claims
1. System zur Verdichtung von Gasen mit zumindest einem Ver¬ dichter (1), der durch eine Gasturbine (2) über einen Wellen- sträng (3) angetrieben wird, wobei ein Asynchronmotor (4) mit massiven Läufern (6) als Starter einsetzbar ist.1. A system for compressing gases with at least one Ver ¬ poet (1), which is driven by a gas turbine (2) via a shaft sträng (3), wherein an asynchronous motor (4) with solid rotors (6) used as a starter is.
2. System nach Anspruch 1, d a d u r c h g e k e n n ¬ z e i c h n e t , dass der Läufer (6) eine radiale Erweite- rung des angetriebenen Wellenstranges (3) darstellt.2. System according to claim 1, dadurchgekenn ¬ records that the rotor (6) is a radial extension of the driven shaft train (3).
3. System nach Anspruch 2, d a d u r c h g e k e n n ¬ z e i c h n e t , dass der Asynchronmotor (4) zwischen Ver¬ dichter (1) und Gasturbine (2) angeordnet ist. 3. System according to claim 2, dadurchgekenn ¬ characterized in that the asynchronous motor (4) between Ver ¬ denser (1) and gas turbine (2) is arranged.
PCT/EP2005/055302 2004-10-18 2005-10-17 System for compressing gases WO2006042837A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410050644 DE102004050644B4 (en) 2004-10-18 2004-10-18 System for the compression of gases
DE102004050644.2 2004-10-18

Publications (1)

Publication Number Publication Date
WO2006042837A1 true WO2006042837A1 (en) 2006-04-27

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ID=35559383

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WO (1) WO2006042837A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1231344B (en) * 1961-03-15 1966-12-29 Alsthom Cgee Auxiliary drive with a significantly lower speed compared to the operating speed
DE2263184A1 (en) * 1972-12-22 1974-06-27 Kraftwerk Union Ag GAS TURBINE SYSTEM WITH UNDERGROUND ACCUMULATOR
US4077748A (en) * 1974-10-25 1978-03-07 Bbc Brown, Boveri & Company Limited Turbomachine plant comprising coupled gas turbine, synchronous electrical machine and compressor units having optional operating modes
DE2830421A1 (en) * 1978-07-11 1980-01-24 Kueppersbusch Heat pump circuit with IC engine driven compressor - has electric starter motor which can act as generator feeding energy into circuit
EP0043067A2 (en) * 1980-06-30 1982-01-06 Siemens Aktiengesellschaft Heating and power unit
DE3121822A1 (en) * 1981-06-02 1982-12-16 Motoren-Werke Mannheim AG vorm. Benz Abt. stationärer Motorenbau, 6800 Mannheim Internal combustion engine unit for the generation of electrical current and/or compression of air, especially for sewage treatment plants
EP1443189A1 (en) * 2003-01-31 2004-08-04 Holset Engineering Co. Limited Electric motor assisted turbocharger
EP1469177A1 (en) * 2003-04-18 2004-10-20 C.R.F. Società Consortile per Azioni A system for transmitting drive from the crankshaft of an internal combustion engine of a motor vehicle to a group of auxiliary devices

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2504992B1 (en) * 1981-04-30 1986-11-14 Valbrev COMBINATION OF A COMPRESSION OR RELAXATION TURBO-MACHINE AND AN ELECTRIC MOTOR

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1231344B (en) * 1961-03-15 1966-12-29 Alsthom Cgee Auxiliary drive with a significantly lower speed compared to the operating speed
DE2263184A1 (en) * 1972-12-22 1974-06-27 Kraftwerk Union Ag GAS TURBINE SYSTEM WITH UNDERGROUND ACCUMULATOR
US4077748A (en) * 1974-10-25 1978-03-07 Bbc Brown, Boveri & Company Limited Turbomachine plant comprising coupled gas turbine, synchronous electrical machine and compressor units having optional operating modes
DE2830421A1 (en) * 1978-07-11 1980-01-24 Kueppersbusch Heat pump circuit with IC engine driven compressor - has electric starter motor which can act as generator feeding energy into circuit
EP0043067A2 (en) * 1980-06-30 1982-01-06 Siemens Aktiengesellschaft Heating and power unit
DE3121822A1 (en) * 1981-06-02 1982-12-16 Motoren-Werke Mannheim AG vorm. Benz Abt. stationärer Motorenbau, 6800 Mannheim Internal combustion engine unit for the generation of electrical current and/or compression of air, especially for sewage treatment plants
EP1443189A1 (en) * 2003-01-31 2004-08-04 Holset Engineering Co. Limited Electric motor assisted turbocharger
EP1469177A1 (en) * 2003-04-18 2004-10-20 C.R.F. Società Consortile per Azioni A system for transmitting drive from the crankshaft of an internal combustion engine of a motor vehicle to a group of auxiliary devices

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Publication number Publication date
DE102004050644B4 (en) 2006-12-28
DE102004050644A1 (en) 2006-04-20

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