WO2016173910A1 - Dispositif de transmission de puissance et procédé pour faire fonctionner un tel système - Google Patents

Dispositif de transmission de puissance et procédé pour faire fonctionner un tel système Download PDF

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Publication number
WO2016173910A1
WO2016173910A1 PCT/EP2016/058831 EP2016058831W WO2016173910A1 WO 2016173910 A1 WO2016173910 A1 WO 2016173910A1 EP 2016058831 W EP2016058831 W EP 2016058831W WO 2016173910 A1 WO2016173910 A1 WO 2016173910A1
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WO
WIPO (PCT)
Prior art keywords
gas turbine
compressor
power transmission
starting element
drive machine
Prior art date
Application number
PCT/EP2016/058831
Other languages
German (de)
English (en)
Inventor
Daniel Flemmer
Matthias Rommel
Andreas Hermann
Hans Schirle
Original Assignee
Voith Patent Gmbh
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 Voith Patent Gmbh filed Critical Voith Patent Gmbh
Publication of WO2016173910A1 publication Critical patent/WO2016173910A1/fr

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Classifications

    • 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
    • F02C7/27—Fluid drives
    • 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
    • F02C7/36—Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0022—Hydrocarbons, e.g. natural gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
    • F25J1/0281—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc. characterised by the type of prime driver, e.g. hot gas expander
    • F25J1/0283—Gas turbine as the prime mechanical driver
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
    • F25J1/0285—Combination of different types of drivers mechanically coupled to the same refrigerant compressor, possibly split on multiple compressor casings
    • F25J1/0287—Combination of different types of drivers mechanically coupled to the same refrigerant compressor, possibly split on multiple compressor casings including an electrical motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
    • F25J1/0298—Safety aspects and control of the refrigerant compression system, e.g. anti-surge control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/70—Application in combination with
    • F05D2220/76—Application in combination with an electrical generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/40—Transmission of power
    • F05D2260/406—Transmission of power through hydraulic systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/85—Starting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H41/00—Rotary fluid gearing of the hydrokinetic type
    • F16H41/04—Combined pump-turbine units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H45/00—Combinations of fluid gearings for conveying rotary motion with couplings or clutches
    • F16H45/02—Combinations of fluid gearings for conveying rotary motion with couplings or clutches with mechanical clutches for bridging a fluid gearing of the hydrokinetic type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/20—Integrated compressor and process expander; Gear box arrangement; Multiple compressors on a common shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2280/00—Control of the process or apparatus
    • F25J2280/10—Control for or during start-up and cooling down of the installation

Definitions

  • the invention relates to a power transmission device, in detail with the features of the preamble of claim 1.
  • the invention further relates to a method for operating such a power transmission device.
  • Power transmission devices for driving compressors or compressors, in particular for use in plants for the liquefaction of natural gas are already known in different versions of the prior art. These usually include a gas turbine, the gas turbine and the compressor are approached according to a first embodiment of the prior art via a frequency converter and a prime mover.
  • the disadvantage of such a solution is the very high demands of the underlying power grid, in the extremely high costs and the only conditional reliability of the frequency converter, which severely limits the reliability of the overall system.
  • the required frequency converter which should allow a smooth startup of the gas turbine compressor unit, requires an extremely large amount of space.
  • WO 0212692 A1 describes a power transmission device in which a gas turbine is provided, in which a shaft end is the output shaft of the gas turbine and via a switchable speed / torque converter with at least one compressor, which is used for the compression of liquefied natural gas , is coupled.
  • the gas turbine drives the compressor via the variable speed / torque converter, which offers the benefit of gradual smooth startup of the compressor.
  • a switchable hydrodynamic speed / torque converter is arranged between the gas turbine and the compressor, requires that the drive, which is formed in this case by the gas turbine, must be approached separately by an additional starting element. Also, the hydrodynamic component must be able to transfer the entire rated power and torque of the drive train completely safely.
  • the invention therefore an object of the invention to develop a power transmission device of the type mentioned in such a way that it is suitable for powering by means of the starting element to drive the powertrain and also does not have to transmit the full rated power of the train, so that the starting element are designed to be considerably smaller can. Furthermore, the solution should also allow operations with recovery of excess energy.
  • the solution according to the invention is intended to be characterized by a low design effort and can meet a variety of additional tasks with the lowest possible number of components and components.
  • the solution according to the invention is characterized by the features of claims 1, 11 and 12. Advantageous embodiments are described in the subclaims.
  • a power transmission device for driving at least one compressor of a plant for the production of liquefied natural gas (LNG) with a gas turbine, comprising a shaft which is connected to a compressor and a switchable starting element in the form of a hydrodynamic component comprising at least one impeller and a turbine wheel characterized in that the gas turbine and the at least one compressor to form a gas turbine compressor unit are at least indirectly, preferably mechanically coupled directly and an engine is provided, wherein the switchable starting element between the engine and the gas turbine compressor unit is arranged.
  • LNG liquefied natural gas
  • the solution according to the invention is characterized in that the hydrodynamic component is arranged between the drive machine and the gas turbine compressor unit, wherein the hydrodynamic component can be filled and emptied and decoupled via one or more switchable coupling devices of the gas turbine compressor unit and / or the drive machine is, wherein the single switchable coupling device is arranged coaxially to the hydrodynamic component.
  • the switchable coupling device connects the pump and the turbine wheel.
  • Switchable within the meaning of the invention means that the respective component - starting element or switchable coupling has at least two functional states - activated or deactivated.
  • Activation here means the production of the connection between a prime mover and the gas turbine compressor train, while deactivated involves a separation or decoupling of the engine from the gas turbine compressor train. At least indirectly means in particular that the connection or coupling between individual components can be realized either directly or via further intermediate transmission elements with or without speed / torque conversion.
  • the solution according to the invention has the advantage that with a simple and space-saving configuration of the arrangement of a starting element between a prime mover and a gas turbine compressor unit, with only a single starting element of the entire driveline, ie both the gas turbine and the compressor can be driven, the Start-up element does not have to transfer the full rated power of the strand, since this is not arranged between the gas turbine and the compressor and therefore does not need to be transmitted after ignition of the turbine with this introduced power component. Furthermore, the arrangement according to the invention has the advantage that additional power can be transmitted to the gas turbine compressor unit from the prime mover via the starting element at rated load and, on the other hand, regenerative power at higher available power at the turbine to the drive machine when designed as a generator operable electric machine is possible.
  • the solution according to the invention can be operated with little control engineering effort.
  • the starting element is designed as a hydrodynamic component.
  • the hydrodynamic component is designed as a hydrodynamic coupling, comprising at least one pump impeller and one turbine impeller, which together form a working space that can be filled with operating fluid.
  • the pump blade wheel is at least indirectly coupled to the drive machine, while the turbine blade wheel is at least indirectly, preferably directly connected to the gas turbine.
  • the hydrodynamic coupling is designed as a controllable hydrodynamic coupling, that is, the transmittable power is adjusted via an actuator, such as a scoop, on the hydrodynamic coupling by changing the degree of filling.
  • the switchability is realized via the filling and emptying of the working space. This is a particularly simple measure. However, it is also conceivable to leave the clutch filled in an alternative embodiment and to provide a shiftable clutch which takes out the hydrodynamic clutch from the drive train.
  • the hydrodynamic component is designed as a hydrodynamic speed / torque converter.
  • This comprises at least a pump impeller, a turbine blade wheel and a stator functioning as a reaction member.
  • the hydrodynamic speed / torque converter works like a hydrodynamic gearbox, which means that it works with speed / torque conversion.
  • the pump impeller is at least indirectly, preferably connected directly to the drive machine, while the at least one turbine wheel is at least indirectly, preferably coupled directly to the gas turbine.
  • the hydrodynamic torque converter is designed with an actuator, by means of which the transmitted torque and the speed of the turbine is controlled and / or regulated.
  • the actuator may for example be effective in / on the stator and / or the impeller and / or turbine.
  • the hydrodynamic speed / torque converter is switchable by the optional possibility of filling or emptying. Alternatively or additionally, the switchability can also be realized via a switchable coupling, which takes the hydrodynamic components by bridging from the drive train.
  • the speed / torque converter is controlled by means of an actuator (actuator in the guide, pump and / or turbine) and switchable (filling and emptying) running.
  • the starting element is for this purpose equipped with a lock-up clutch, which connects each coupled to the engine part of the starting element and coupled to the gas turbine part of the starting element together.
  • lock-up clutches are known for hydrodynamic components of the prior art in a variety of designs. In the simplest case, the bridging takes place via a claw, disc or multi-plate clutches.
  • An alternative embodiment provides two power branches, wherein the starting element is arranged in one of the two power branches and this power branch can be decoupled from the drive machine.
  • This is preferably designed as an electric machine, in particular an electric motor, which can also be operated in generator mode. This offers the advantage that in the presence of excess power that of the prime mover by coupling with the gas turbine - directly or via the Starting element - fed and can be fed into a network or energy storage device.
  • an auxiliary drive can be provided, which in the simplest case comprises only one auxiliary drive machine of smaller dimensions.
  • This is preferably an electric machine or an internal combustion engine.
  • the starter unit can also include additional components that further improve the function of the auxiliary drive and designed adaptable to the given boundary conditions. This may be, on the one hand to convert a prime mover with a downstream torque converter, a prime mover in the form of an electric motor with frequency converter or a prime mover with Softstart issued. Other versions are conceivable.
  • the auxiliary drive allows easy and quick start-up of the drive machine itself.
  • a rotor rotating device to assist the starting process of the gas turbine compressor unit, which is used between the starting element and the gas turbine compressor unit in the drive train. This allows slow rotation of the gas turbine compressor driveline during the cooling phase and / or assists breakaway of the entire string. Due to the arrangement on the output side of the starting element, this arrangement also corresponds to a conventional arrangement of a rotor turning device in gas turbine starting converters.
  • the solution according to the invention is preferably used for gas turbine compressor trains in the power range of> 50 MW.
  • a particularly advantageous application is the use of the gas turbine compressor unit for generating LPG.
  • a method of driving a compressor having a power transmission device according to any one of claims 1 to 10, in particular for starting up a compressor is by the following
  • either the starting element can be bridged (in particular the pump and turbine wheels of the hydrodynamic component can be connected to each other in a rotationally fixed manner, wherein the hydrodynamic component is optionally entlerrt ) and the prime mover are coupled directly to the gas turbine compressor unit or the prime mover is connected via the starting element to the gas turbine compressor unit.
  • the required additional power can be provided in a simple manner via the drive machine without separate auxiliary drive.
  • Figure 1 a illustrates a basic configuration of the invention
  • FIG. 1 b illustrates the basic configuration according to FIG. 1 a with additional one
  • FIGS. 2a are identical to FIGS. 2a.
  • Figure 3a illustrates a first embodiment of a starting element with associated lock-up clutch for the realization of the mechanical drive between the engine and gas turbine compressor unit;
  • Figure 3b illustrates an alternative embodiment to Figure 3a
  • Figure 3c shows a second embodiment of a starting element with associated
  • Lock-up clutch for realizing the mechanical drive between the engine and the gas turbine compressor unit
  • FIG. 4 shows the configuration according to FIG. 1 b with additional
  • FIG. 5 illustrates a method for operating such a system
  • FIG. 1 a illustrates, in a schematized and greatly simplified illustration, the basic construction and the basic mode of operation of a power transmission device 1 of a drive system according to the invention for producing liquefied natural gas (LNG).
  • the power transmission device 1 serves in particular for starting / driving at least one compressor 2 of such a system.
  • the power transmission device 1 comprises at least one gas turbine 3, comprising a shaft 4, which is coupled to the compressor 2 to form a so-called gas turbine compressor unit 5.
  • the power transmission device 1 further comprises a drive machine 6 and a switchable starting component 7 arranged between the drive machine 6 and the gas turbine compressor unit 5.
  • This is a hydrodynamic power transmission device. which is represented as a controllable hydrodynamic speed / torque converter 8 according to a first embodiment as shown in Figure 2a and according to a second embodiment, shown in Figure 2b, as a controllable hydrodynamic coupling.
  • the drive machine 6 is designed according to a first, particularly advantageous embodiment, as an electrical machine, in particular an electric machine which can be operated as a generator. According to a second embodiment, this may also be designed as an internal combustion engine or another type of prime mover.
  • the drive machine 6 is connected to the starting element 7.
  • the connection is preferably made free of further transmission elements, that is directly.
  • Drive machine 6 and starting element 7 are arranged coaxially with each other. In a preferred embodiment, this also applies to the arrangement of starting element 7 and gas turbine compressor unit.
  • a drive shaft 10 of the drive machine 6 is connected to a shaft 1 1 of the starting element 7.
  • the connection can be direct, non-positive or positive.
  • the starting element 7 is further connected to a shaft 13 of the gas turbine compressor unit 5, preferably an end shaft end of the shaft 4 of the gas turbine.
  • the connection takes place via the coupling of a shaft 12, which in the power transmission direction from the drive machine 6 to the compressor 2 acts as an output shaft of the starting element 7 with a shaft of the gas turbine 3, in particular in single-shaft gas turbines a shaft end of the shaft 4 directed away from the compressor 4
  • the gas turbine also acts in this power transmission direction as an output shaft for coupling to the compressor 2, in particular an input shaft of the compressor 4.
  • the arrangement of starting element and compressor can be designed so that the starting element 7 to the first shaft end and the compressor is coupled to the second shaft end.
  • the term wave is functional and not limited to a specific structural design. This also includes versions of other rotatable components.
  • connection between drive machine 6 and starting element 7, in particular a shaft of the drive machine and the hydrodynamic component and start-up element 7 and gas turbine compressor unit, in particular a shaft of the hydrodynamic component and the gas turbine compressor unit can thereby rotatable positive or non-positive connections, rigid couplings, or preferably realized via compensating couplings.
  • the embodiment shown in FIG. 1 a represents a basic configuration.
  • the individual connections between the components drive machine 6, starting component 7, gas turbine 3 and compressor 4 can each be non-positive or positive-locking.
  • the decisive factor is that the starting element 7 is at least one controllable and switchable speed conversion device, preferably a speed / torque converter.
  • the starting element 7 is used to start the gas turbine 3, with which the compressor 2 connected to the gas turbine 3 is started up.
  • the starting element 7 is switchable, i. This can be an optional interruption or production of the connection between the engine 6 and gas turbine 3 can be realized.
  • the switchability can be realized in the first embodiment with training of the starting element 7 as a hydrodynamic speed / torque converter 8 alone on the filling and emptying, advantageously optionally or additionally via a switchable clutch 14, which is also referred to as lock-up clutch and the Input and output Output component (impeller and turbine) of the hydrodynamic speed / torque converter, bypassing the power flow via the starting element 7 coupled together.
  • a switchable clutch 14 which is also referred to as lock-up clutch and the Input and output Output component (impeller and turbine) of the hydrodynamic speed / torque converter, bypassing the power flow via the starting element 7 coupled together.
  • the switchability on the filling and discharging and / or filled clutch also takes place by bridging.
  • the embodiment of the starting element 7 as hydrodynamic converter 8 and controllable hydrodynamic coupling 9 are shown by way of example in FIGS. 2a and 2b.
  • the embodiment with lock-up clutch 14 is described in FIGS. 3a to 3c.
  • a switchable coupling in the form of a lock-up clutch 14 is provided which connects the impeller with the turbine wheel of the hydrodynamic component. Further, prime mover, shiftable clutch, starting element and gas turbine compressor unit are arranged coaxially with each other. This is not shown separately in Figures 1 and 2.
  • FIG. 1 b illustrates a further development according to FIG. 1 a, in which the drive machine 6 is assigned a component for supporting the drive machine 6, in particular start-up of the drive machine 6. This is referred to here as auxiliary drive 15.
  • FIGS. 1 a and 1 b enable load-free starting of the drive machine 6. This takes place, for example, via the transmittable power that can be set via the starting element 7.
  • the compressor 2 is operated to start in a so-called recycle mode, that is, with reduced power.
  • To start the gas turbine compressor unit 5 is decoupled from the engine 6.
  • the decoupling takes place in each case after execution of the hydrodynamic component as a hydrodynamic speed / torque converter 8 and hydrodynamic Coupling 9, preferably by emptying the hydrodynamic component and / or releasing the bridging. In this state, the engine 6 is approached to the rated speed, while the gas turbine compressor unit 5 is still decoupled from the engine 6.
  • the gas turbine 3 and the coupling between the gas turbine 3 and compressor 5 is driven. From the ignition of the gas turbine 3, this then supports the starting or starting process. As a result, the maximum torque to be transmitted via the starting element 7 is reduced, that is, only a portion of the power transmitted to the compressor 2 is transmitted to the gas turbine 3 via the starting element 7. The other required for driving the compressor power component is then fed directly from the gas turbine 3 to the compressor 2.
  • the transmission of the main power of the train is thus no longer via the starting element 7, whereby they do not have to transmit the full rated power and therefore can be made smaller.
  • the drive train is thus designed such that the power is transmitted to the compressor 2 over a first portion of the entire operating range of the engine 6 via the starting element 7 on the gas turbine compressor unit 5, while in a Further operating range, a part of the power, which is generated in the operation of the gas turbine 3 from the combustion gases used. This applies in particular to nominal operation, in which the main power of the train is not transmitted via the starting element 7 generated by the drive machine 6, but directly from the gas turbine 3 to the compressor 2.
  • bridging of the hydrodynamic component can be achieved via a shiftable clutch, in particular a bridging device, which generates a direct rigid mechanical coupling between the engine and the gas turbine compressor unit 5, wherein additional power is provided by the engine 6 in this mode of operation Power can be introduced into the strand of the power transmission device 1.
  • a direct, rigid mechanical coupling of drive machine 6 and gas turbine compressor unit 5 can optionally be achieved via the bridging device, with the excess power of gas turbine 3 in this case being transmitted to drive machine 6 in the form of an electric machine, in order to operate in generator mode To generate energy.
  • the inventive arrangement thus allows a variety of different modes of operation, which result in that no longer the full power on the starting element 7 must be transmitted and thus this is not interpreted for continuous operation at full rated power. Rather, the combination of the drive machine 6 and the starting component 7 is a supporting device for starting the gas turbine 3, which, due to its configuration, can be used for further advantageous operating modes after reaching the desired operating state.
  • the starting element 7 is designed according to a first embodiment as a hydrodynamic speed / torque converter 8. This is shown in a simplified schematic representation in FIG. 2a. With regard to the specific design of such a converter, there are a multitude of possibilities.
  • this comprises at least one impeller, a turbine wheel T and a so-called reaction member in the form of a stator L, via which the speed / torque variation between impeller and turbine T is realized.
  • the power is transmitted via a liquid operating medium.
  • the impeller P is in the configurations of Figures 1 a and 1 b connected to the shaft 10 of the engine 6, while the turbine T at least indirectly, preferably directly, with a shaft of the gas turbine 3 is connectable.
  • the hydrodynamic speed / torque converter 8 can be designed in one or more stages. The selection of the specific embodiment is dependent on the application requirements and the desired start-up behavior to be set. According to a particularly advantageous embodiment, it is a so-called Lysholm converter, other embodiments are conceivable.
  • hydrodynamic speed / torque converter 8 is characterized in that a speed conversion is accompanied by a torque conversion, this behavior is not given according to FIG. 2b with a hydrodynamic controllable clutch 9.
  • a speed conversion between the input and output that is, a pump P and a turbine T, which form a torus-shaped working space can be filled with operating medium instead.
  • filled hydrodynamic coupling 9 this is realized when starting on the increasingly forming flow circuit between impeller and turbine.
  • the hydrodynamic coupling can be filled and emptied, this can be done via a, the hydrodynamic component associated hydraulic circuit which is arranged inside and outside the clutch or filled with clutches via appropriately provided delay chambers, which is a violation of operating medium from a Allowing provided in the clutch resource reservoir during startup in the work space, the prime mover 6 can Gas turbine 3 load reduced until the ignition of the gas turbine 3 start.
  • a device 16 is provided to control the degree of filling.
  • FIG. 3a illustrates an embodiment with a hydrodynamic speed / torque converter with a shiftable clutch 14.
  • the shiftable clutch 14 is directly associated with the impeller and the turbine wheel T and serves for the mechanical coupling of the latter in the desired transmission mode.
  • the hydrodynamic component can remain filled, with the filling not affecting the power transmission behavior.
  • a rigid mechanical coupling between the engine 6 and the gas turbine compressor unit 5 can be realized to introduce mechanical power directly from the engine 6 in the strand or supply power to the engine 6.
  • the shiftable clutch 14 is not formed as a lock-up clutch, but as shown in Figure 3b, the starting element is arranged in a power branch parallel to the main drive train, wherein the switchable clutch 14 is disposed parallel to the main drive train power branch of this, the is upstream of the hydrodynamic component in the power transmission direction between the engine 6 and gas turbine compressor unit 5.
  • a power component is always transmitted via the direct mechanical coupling between drive machine 6 and gas turbine compressor unit 5.
  • another switchable coupling which is reproduced here only by means of a broken line, would be provided in the second power branch. Both clutches, in the first and second power branch, wherein the first power branch is located directly in the main drive train, would then be individually controllable and switchable.
  • FIG. 4 shows an embodiment of a power transmission device 1 with optionally additional rotor turning device RDV.
  • This is the input shaft that is called drive shaft of the gas turbine 3, assigned, which is also connected to the compressor 2 and mounted on the output side of the starting element 7, that is on the power transmission from the engine 6 to the gas turbine compressor unit 5 acting as the output shaft shaft 12 of the starting element 7.
  • this has a one-piece with this running or rotatably connected to this sprocket, which acts as a so-called drive pinion.
  • a pinion of the rotor rotating device can be brought into engagement, which may be, for example, a pivot pinion, which is driven via a drive machine and mounted on a pivot lever, wherein on the pivot lever at least two functional positions can be realized, a first, depending on the design of the rotor rotating device Functional position in which the pinion is engaged with the arranged on the output shaft of the starting gear sprocket and a second functional position, which is referred to as disengaged position.
  • FIG. 5 illustrates, in a schematically simplified representation, the sequence of a starting process on the basis of a flowchart. Here only the basic process steps are reproduced. Additional optional additional measures are not indicated.
  • the first method step A is characterized in that, for starting from standstill, the starting element is designed, arranged and operated such that the drive machine 6 is decoupled from the gas turbine compressor unit 5. If this mode of operation is given, the drive machine 6 is started, that is started. In this case, engine 6 is raised in B up to nominal speed. Upon reaching a predefined rated speed, the starting element 7 is activated in C and thus a coupling between the engine and gas turbine compressor unit 5 is produced. From the ignition of the gas turbine, the power component to drive the compressor is provided directly through the gas turbine 3 and thus the compressor 2 on the sum of the power component, transmitted from the gas turbine Drive machine 6 to the gas turbine 3, and the other part of the gas turbine 3 itself driven. Upon reaching the nominal operation of the gas turbine 3, the decoupling of the starting element 7 takes place and the drive of the compressor 2 takes place solely via the gas turbine 3 in method step D.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Control Of Turbines (AREA)

Abstract

L'invention concerne un dispositif de transmission de puissance pour l'entraînement d'au moins un compresseur d'une installation de compression de gaz liquéfié (GNL) comprenant une turbine à gaz, comportant un arbre qui est relié à un compresseur, et un élément de démarrage connectable. L'invention est caractérisée en ce que la turbine à gaz et l'au moins un compresseur sont accouplés mécaniquement directement l'un à l'autre de manière à former une unité turbine à gaz-compresseur et une machine d'entraînement est prévue, l'élément de démarrage connectable étant disposé entre la machine d'entraînement et l'unité turbine à gaz-compresseur.
PCT/EP2016/058831 2015-04-30 2016-04-21 Dispositif de transmission de puissance et procédé pour faire fonctionner un tel système WO2016173910A1 (fr)

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DE102015208019 2015-04-30

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Publication number Priority date Publication date Assignee Title
DE102017122549A1 (de) * 2017-09-28 2019-03-28 Voith Patent Gmbh Antriebsvorrichtung zum Antrieb einer Arbeitsmaschine
DE102019114253A1 (de) * 2019-05-28 2020-12-03 Voith Patent Gmbh Antriebsstrang für eine Fluidarbeitsmaschine mit Hilfsenergieerzeugung
DE102019116065A1 (de) 2019-06-13 2020-12-17 Voith Patent Gmbh Druckbeaufschlagung von Abgasen eines Turbinenkraftwerks
DE102022124925A1 (de) 2022-09-28 2024-03-28 Rolls-Royce Deutschland Ltd & Co Kg Vorrichtung zum Erzeugen von elektrischer Energie für ein Luftfahrzeug, Verfahren zum Betreiben einer solchen Vorrichtung und Luftfahrzeug

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002012692A1 (fr) 2000-08-10 2002-02-14 Conocophillips Company Convertisseur de couple pour lancement de compresseur
WO2007102964A2 (fr) * 2006-03-06 2007-09-13 Exxonmobil Upstream Research Company Démarreur à transmission hydraulique à engrenage terminal double
WO2008140517A1 (fr) * 2007-05-09 2008-11-20 Conocophillips Company Système de démarrage progressif mécanique pour faire tourner un équipement industriel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002012692A1 (fr) 2000-08-10 2002-02-14 Conocophillips Company Convertisseur de couple pour lancement de compresseur
WO2007102964A2 (fr) * 2006-03-06 2007-09-13 Exxonmobil Upstream Research Company Démarreur à transmission hydraulique à engrenage terminal double
WO2008140517A1 (fr) * 2007-05-09 2008-11-20 Conocophillips Company Système de démarrage progressif mécanique pour faire tourner un équipement industriel
EP2142825B1 (fr) 2007-05-09 2013-05-15 Conocophillips Company Système de démarrage progressif mécanique pour faire tourner un équipement industriel

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