CN106884686A - Power station drive line - Google Patents

Power station drive line Download PDF

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Publication number
CN106884686A
CN106884686A CN201610940644.8A CN201610940644A CN106884686A CN 106884686 A CN106884686 A CN 106884686A CN 201610940644 A CN201610940644 A CN 201610940644A CN 106884686 A CN106884686 A CN 106884686A
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CN
China
Prior art keywords
power
speed
speed changer
branch line
turbine
Prior art date
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Granted
Application number
CN201610940644.8A
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Chinese (zh)
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CN106884686B (en
Inventor
M.哈尔德
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Voith Patent GmbH
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Voith Patent GmbH
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Publication of CN106884686A publication Critical patent/CN106884686A/en
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Publication of CN106884686B publication Critical patent/CN106884686B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10Adaptations for driving, or combinations with, electric generators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D13/00Combinations of two or more machines or engines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/08Adaptations for driving, or combinations with, pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01DNON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/12Combinations with mechanical gearing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/12Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engines being mechanically coupled
    • F01K23/16Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engines being mechanically coupled all the engines being turbines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K9/00Plants characterised by condensers arranged or modified to co-operate with the engines
    • F01K9/02Arrangements or modifications of condensate or air pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00Features, 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
    • F02C7/36Power transmission arrangements between the different shafts of the gas turbine plant, or between the gas-turbine plant and the power user
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/02Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
    • F16D3/06Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16DCOUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/16Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
    • F16D3/18Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts the coupling parts (1) having slidably-interengaging teeth
    • F16D3/185Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts the coupling parts (1) having slidably-interengaging teeth radial teeth connecting concentric inner and outer coupling parts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H3/00Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
    • F16H3/44Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion
    • F16H3/72Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion using gears having orbital motion with a secondary drive, e.g. regulating motor, in order to vary speed continuously
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H47/00Combinations of mechanical gearing with fluid clutches or fluid gearing
    • F16H47/06Combinations of mechanical gearing with fluid clutches or fluid gearing the fluid gearing being of the hydrokinetic type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00Function
    • F05D2260/40Transmission of power
    • F05D2260/403Transmission of power through the shape of the drive components
    • F05D2260/4031Transmission of power through the shape of the drive components as in toothed gearing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00Function
    • F05D2260/40Transmission of power
    • F05D2260/406Transmission of power through hydraulic systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00Control
    • F05D2270/01Purpose of the control system
    • F05D2270/02Purpose of the control system to control rotational speed (n)

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Fluid Gearings (AREA)
  • Structure Of Transmissions (AREA)
  • Rotary Pumps (AREA)
  • Gear Transmission (AREA)

Abstract

The present invention relates to a kind of power station drive line, with the steam turbine and/or gas turbine of constant rotation speed operation, for driving generator;Pump with variable speed, for the waste gas produced in conveying and/or working media or the process supply of compressible drive and/or process supply steam turbine and/or gas turbine or gas turbine, wherein, the pump of variable speed, especially boiler feed pump is driven by steam turbine and/or gas turbine, the adjustable speed changer of rotating speed is arranged in drive connection, including at least one entrance, outlet and the branched power of the second power branch line with least one first power branch lines and fluid power, wherein, driving power is branched out by fluid coupling or liquid force converter by the power branch line of fluid power from the first power branch line, by superposition speed changer the first power branch line is re-entered in transmission outlet side variable speed;Wherein, steam turbine and/or gas turbine are connected with power transmission equipment by the attachment means compensated with axial length.

Description

Power station drive line
Technical field
The present invention relates to a kind of power station drive line, it is carried:With the steam turbine of constant rotation speed operation and/or combustion Gas-turbine, for driving generator;The pump of variable speed, for conveying and/or compressing for driving and/or to steam turbine And/or gas turbine carries out the working media of process supply, or for conveying and/or being compressed in process supply or gas turbine in The waste gas of formation, wherein, the pump of variable speed, especially boiler feed pump are driven by steam turbine and/or gas turbine;With , into the power transmission equipment of the adjustable speed changer of rotating speed, the power transmission equipment is including extremely for layout design in drive connection A few entrance, outlet and branched power, second work(of the branched power with least one first power branch lines and fluid power Rate branch line, wherein, driving power passes through fluid coupling or liquid force converter from the first power branch by the power branch line of fluid power Line is separated, and re-enters the first power branch line in transmission outlet side variable speed by superposition speed changer.
Background technology
Such power station drive line is described in the A2 of document WO 2011/124322.The power station is driven Circuit has the steam turbine and/or gas turbine for driving generator, and the generator passes through one or more vapor wheels Machine and/or gas turbine are driven.Steam turbine and/or gas turbine with constant rotation speed operation, so as to by generating Machine produces the electric energy with predetermined hertz number frequency in other words.The pump of steam turbine and/or gas turbine drives variable speed, Therefore the variable pump of the speed change and steam turbine or the coupling of gas turbine mechanical formula ground.The pump of variable speed can be designed for example For conveying and/or the working media of compressible drive steam turbine and/or gas turbine.In one embodiment, the pump It is boiler feed pump, the working media of steam turbine is delivered to generation device of steam by the boiler feed pump.In variable speed Pump and drive the pump steam turbine and/or gas turbine between drive connection (Triebverbindung) in be disposed with The adjustable speed changer of rotating speed, the speed changer includes branched power, and the branched power is with machinery, especially only mechanical master The auxiliary branch line of branch line and fluid power.Here, driving power passes through fluid coupling and/or liquid force converter by the auxiliary branch line of fluid power Branched out from main branch line, and main branch line is re-entered in transmission outlet side by subsequent superposition speed changer.In order to realize hair The shorter structure length of power station drive line, turbine is directly preposition in the adjustable speed changer of rotating speed.
During operation, turbine is equably in running temperature.This produces expansion caused by heat.According to model and making With condition, the duration of runs of this types of turbine can be up to a few hours.Here, should not be due in the drive line of power station The thermal expansion of the different severe degrees of all parts of turbine and connecting element and form mechanical stress, the mechanical stress is outstanding The service behaviour of its adjustable speed changer of rotating speed for being placed in turbine after causing directly is damaged and raising of wearing and tearing.Turbine Reduction with the thermal expansion of connecting elements and and then the reduction of stress that is applied in the drive line of power station can be in turbine Machine aspect selects to realize by the material for changing to turbine and connecting element.
The content of the invention
Therefore the technical problems to be solved by the invention are to improve the power station drive line of aforementioned type so that whirlpool Between turbine and the adjustable speed changer of rotating speed drive connection on the one hand power station drive line axial arrangement length compared with The requirement of the too high thermal expansion of the part of compensation turbine and connecting elements is met while low, additionally, also very simple and jail Admittedly constitute, and be good in simple assembling, relatively low axial length and relatively low cost.
The technical problem is solved by the power station drive line described in beginning, by present invention provide that, steam turbine and/ Or gas turbine is connected with power transmission equipment by the attachment means compensated with axial length.
Power station drive line has the steam turbine and/or combustion gas wheel for driving generator run with constant rotational speed Machine and the adjustable pump of rotating speed.The adjustable pump of rotating speed is used to convey and/or compressible drive and/or process supply steam The working media of turbine and/or gas turbine, or for conveying and/or being compressed in formed in process supply or turbine useless Gas.The adjustable pump of rotating speed is driven by steam turbine and/or gas turbine.In turbine and the biography of the adjustable pump of rotating speed Power transmission equipment of the layout design into the adjustable speed changer of rotating speed in dynamic connection.Power transmission equipment enters including at least one The branched power of mouth, outlet and the second power branch line with the first power branch line and fluid power, wherein, driving power is by fluid power Power branch line branched out from the first power branch line by fluid coupling or liquid force converter, and by superposition speed changer exist Transmission outlet side rotating speed adjustable ground re-enters the first power branch line.According to the present invention, the feature of power station drive line exists In steam turbine and/or gas turbine are connected with power transmission equipment by the attachment means compensated with axial length.
By setting the attachment means for individually being compensated with axial length, can compensate in a straightforward manner due to turbine Stress caused by the thermal expansion of machine, the otherwise stress can be introduced into can with the connecting portion and rotating speed of the adjustable speed changer of rotating speed In the speed changer of regulation.The attachment means be configured to specific adaptation in specific application scenario standard construction it is independent Part, and without turbine and/or the additional transformation of power transmission equipment.
In a kind of preferred construction, attachment means are designed to so that the maximum possible axial length of attachment means Compensation is in the range of 10 to 50cm, preferably 10 to 30cm.The available scope mainly meets high power generation equipment Requirement.
Attachment means are configured to cog-wheel coupling, especially arc toothed shaft coupling to be simple, is difficult to be disturbed and low cost Honest and clean.The attachment means can be configured to single cog-wheel coupling or double cog-wheel couplings, especially single arc toothed shaft coupling or Bicircular arcs cog-wheel coupling, is provided with supporting member with axial dimension, preferably supporting hood shape, the supporting member With at least one with teeth portion region, the region with teeth portion can with least one connecting element on energy Engage in the region of the teeth portion engaged with the teeth portion.Preferably, the region with two teeth portion of the type is arranged on supporting member Corresponding axial end region on, wherein, first area with teeth portion and for and the connecting element work that is connected of turbine With connection, namely engagement, and the second area with teeth portion and the connecting element of the adjustable speed changer of rotating speed, especially power The connecting element effect connection of the entrance of transmission equipment, namely engagement.Here, can be according to teeth portion can with turbine or rotating speed Construction in the connecting element that is speed changer coupling or being made up of turbine or speed changer of regulation, teeth portion is related to outer toothed portion or interior Teeth portion.Preferably, the teeth portion for being configured to interior teeth portion is generally point-blank constituted, and outer toothed portion is then constituted almost spherically.This is realized The compensation that angled axle offsets, wherein, special spherical form allows deflecting angle higher.What double cog-wheel couplings were provided Advantage is, in the case of the connection geometry and size difference of turbine and the adjustable speed changer of rotating speed are great, only The connection of the turbine and the adjustable speed changer of rotating speed is realized by unique attachment means.Come for double cog-wheel couplings Say that the radial axle for allowing offsets to be directly proportional to the distance between two pairs of teeth portion herein.
It is that the generating equipment with desired relatively low axial arrangement length preferably uses the adjustable speed changer of rotating speed, its In, the first and second power branch lines are eccentric, arrange with being preferably parallel to each other.Therefore, power branch line can by transfer gear and rotating speed The entrance coupling of the speed changer of regulation, and coupled with outlet by being superimposed speed changer.In principle, different implementation methods can be with It is otherwise varied.According to the adjustable speed changer of rotating speed of the power branch line with arranged off-centre of first embodiment, Fluid coupling is set in first power branch line, the fluid coupling includes at least one impeller of pump and turbine wheel.Second The speed/torque converter of power branch line including fluid power, the speed/torque converter of the fluid power with least one impeller of pump, Turbine wheel and directive wheel.The speed/torque converter and fluid coupling of fluid power mutually prejudicially arrange, and by cloth The transfer gear put in the housing is connected with the entrance of power transmission equipment respectively, to constitute the second power branch line.
Preferably, hydrodynamic component is arranged in the power branch line being arranged parallel to.The parallel arrangement can in level or Completed in installation site in vertical plane and in the plane of horizontal and vertical mutual dislocation.The parallel arrangement can be one Individual axial direction completes in multiple axial planes of plane or mutual dislocation.Hydrodynamic component with the cloth for offsetting in the axial direction Put advantageously, additional functional unit is also integrated in each power branch line.Such additional component may, for example, be:
A) the second converter with different switching characteristic in the second power branch line.Advantage is, in the range of speeds The efficiency of decline is lifted.
B) the additional system between the turbine wheel and rotating actuator of the fluid coupling in the first power branch line Dynamic device.
But the possibility also having is that foregoing additional component is integrated in dislocation-free is arranged on two power vertically In the arrangement of the hydrodynamic component in branch line.
The arranged off-centre of hydrodynamic component is provided the advantage of, on the one hand, can give up costliness especially in parallel arrangement Swivel coupling, on the other hand, can provide the adjustable speed changer of rotating speed and thus have construction compact vertically hair Power station drive line.Additionally, by by the possible gearratio that can be integrated that determines of parallel arrangement, can in the corresponding way with Method changes and changes the driving rotating speed of each hydrodynamic component, therefore on the one hand can utilize compact small hydraulic power unit, this The adjustable speed changer of rotating speed can also be installed additional in existing equipment with method in a straightforward manner outward, and need not be set extra Measure, especially need not be provided gearratio.Here, with method rotating speed can be made adjustable in an ideal way according to the design of transfer gear The speed changer of section matches with the requirement of use occasion.
Generally, power transmission is realized by fluid coupling and liquid force converter in different operation areas.In particular Soft start and the transmission in control/first power branch line of regulation in the subregion of total operation area are realized, is this by liquid Power coupling design is into adjustable shaft coupling (Regelkupplung).This can be realized with method in a different manner.Most simple In the case of, adjustable shaft coupling has adjusting means, and the adjusting means includes the dip-tube for influenceing operation medium amount.This draws It is adjustable to take pipe.Adjustable can be realized with the durection component for radially and/or axially going up.Other possibilities are to lead The input and/or the output from working cycles of dynamic control operation medium.
In the extended mode of first embodiment, in order to realize the mechanical insertion between entrance and outlet, there is provided with In the device for connecting or bridging fluid coupling.This is used to connect or bridge the device of fluid coupling in the simplest situations It is designed to the bridge joint shaft coupling of machinery.Device and fluid coupling for connecting at least can be in parallel.Fluid coupling and can The shaft coupling of switch at least can it is in parallel it is meant that each shaft coupling in itself independently and not with other shaft couplings relatively It is manipulated.Power transmission is only completed under at least one running status by a corresponding shaft coupling herein.It is also conceivable to, Two shaft couplings can be operated under other running statuses, wherein, switchable shaft coupling is in this condition and then bridge joint goes back quilt The fluid coupling of filling, so as to not transmit torque in itself by the fluid coupling, although so still realize entrance with Mechanical insertion between outlet.
In particularly preferred design, for the first embodiment of power branch line arranged off-centre, the first and second power Branch line also only sets a fluid coupling and a converter without other additional rotating speeds and/or torque conversion equipment. In this case, power transmission equipment be configured to it is especially short.
In the case of according to second embodiment using the adjustable speed changer of rotating speed, the first power branch line has been configured to The complete mechanical pass-through facility without hydrodynamic component.Mechanical pass-through facility is interpreted as the outlet of transfer gear and the entrance for being superimposed speed changer Between there is no rotating speed and/or torque to change possible direct coupling.In the simplest situations, herein relate to by one or more The connection shaft device that torsionally connected axle is constituted.Second power branch line includes the speed/torque converter of at least one fluid power, And include the torque of two fluid power and/or torque conversion equipment in special extended mode.
The technical scheme of the arranged off-centre of liquid force converter and purely mechanic pass-through facility is provided the advantage of, on the one hand, The swivel coupling of costliness can especially be given up in the case of a parallel arrangement, and on the other hand, can be provided with vertically Compactly designed power transmission equipment.By the possible gearratio that can be integrated obtained by parallel arrangement, can be with corresponding Ways and means change and convert driving rotating speed in each power branch line, and it is possible thereby to preferably with specifically use Matching criteria.
Transfer gear for each implementation method includes at least one entrance, and the entrance constitutes the entrance of power transmission equipment Or be torsionally connected at least indirectly the entrance with power transmission equipment.Transfer gear includes at least two outlets, and the outlet is mutual Prejudicially arrange, wherein, first outlet and the first power branch line, especially with the mechanical pass-through facility for second embodiment or Impeller of pump for the fluid coupling of first embodiment is at least indirectly connected to, and second outlet and fluid power rotating speed/turn The impeller of pump of square converter is at least indirectly connected to.Thus achieve the torque to each hydrodynamic component each power branch line in other words Transmission.
Using and construct in view of hydrodynamic component and superposition speed changer, the specific configuration of transfer gear has a lot in itself Possibility.The entrance of transfer gear coaxial relative to the entrance of each power branch line or can arrange prejudicially, wherein, entrance is by liquid The axle of the impeller of pump of one of power part or mechanical pass-through facility is constituted.Coaxial arrangement is provided the advantage of, power branch line it One is directly applied in the torque loading on the entrance of the adjustable speed changer of rotating speed, and arranged off-centre allows to cause to slow down or The gearratio of acceleration is integrated in each power branch line, thus, it is possible to preferably in the case of part ideal design with it is specific Use occasion matches.
It is that this transfer gear can be designed with leading for the first and/or second power branch line according to the first design The gearratio for slowing down is caused, and according to the second design, transfer gear design has leading for the first and/or second power branch line Cause the gearratio for accelerating.Thus, basic configuration can be in the case of without other changes only by configuring hydrodynamic component and dividing Dynamic device just matches with method from different power train requirements in a straightforward manner.
In a kind of favourable design, transfer gear includes at least one roller gear group, wherein, the outlet of transfer gear Coupled with roller gear or be made up of roller gear, so as to drive the outlet along identical direction of rotation.
Especially reverse converter is designed in liquid force converter and especially superposition speed changer is with different in porch In the case of direction of rotation, transfer gear includes the roller gear group with two or even number roller gear, wherein, transfer gear First outlet is made up of the first roller gear, and transfer gear second outlet by with inversely in the rotation side of the first roller gear Constituted to the second roller gear or other roller gears that drive.On the other hand, turn with the fluid power as converter in the same direction In the power transfering device of parallel operation, transfer gear includes the roller gear group with three or odd number roller gear, wherein, transfer The first outlet of device is made up of the first roller gear, and transfer gear second outlet by with identical relative to the first roller gear Direction of rotation drive the second roller gear or other roller gears constitute.
For the power station drive line with the adjustable speed changer of rotating speed according to first embodiment, transfer Device includes preferably at least one entrance, the entrance constitute the adjustable speed changer of rotating speed entrance or at least indirectly with rotating speed The entrance of adjustable speed changer is torsionally connected.Transfer gear includes at least two outlets, and the outlet is mutually prejudicially arranged, Wherein, the impeller of pump of first outlet and fluid coupling is at least indirectly being connected, and second outlet and fluid power speed/torque The impeller of pump of converter is at least indirectly connected.Thus achieve and passed to each hydrodynamic component and the thus torque of power branch line Pass.
According to a kind of extended mode, the entrance of the adjustable speed changer of rotating speed and the first outlet of transfer gear are mutually coaxially Arrangement, wherein preferably, first outlet is coupled with the speed/torque converter of fluid power, the speed/torque converter thus, it is possible to Enough be loaded with porch identical rotating speed.Fluid coupling then with the outlet phase of the entrance arranged off-centre relative to transfer gear Connect, wherein, the coupling between entrance and outlet is preferably by causing the gearratio realization of deceleration.Thus avoid in engaging means Or on the gear ring of rotating actuator too high peripheral speed.The implementation method of entrance and each power branch line arranged off-centre is same Sample can be consideration.
In a kind of favourable extended mode, the transfer gear of the entrance of the adjustable speed changer of rotating speed is preferably constituted simultaneously Entrance is prejudicially arranged relative to two power branch lines.The gearratio for accelerating is caused to be realized with connecting through for power branch line.
Transfer gear design in itself has many possibilities.Preferably, transfer gear is designed with odd number roller gear Roller gear group.
In the adjustable speed changer of rotating speed has two first embodiments of the power branch line of arranged off-centre, fluid power connection The entrance of the impeller of pump of axle device and the adjustable speed changer of rotating speed preferably directly or by other is transmitted at least indirectly being connected Device is connected, and is connected with roller gear group herein, and turbine wheel is at least indirect with the outlet of the adjustable speed changer of rotating speed Ground is connected, and is connected by being superimposed speed changer herein.The impeller of pump of the speed/torque converter of fluid power and the adjustable speed change of rotating speed The entrance of device is at least indirectly coupling, and turbine wheel and the outlet are at least indirectly by be superimposed speed changer coupling.
As the transducer types that are used in implementing at two, it is preferred to use with adjustable impeller of pump and/or lead To the converter in the same direction of wheel.Using in the case of reverse converter, transfer gear can be reduced to the roller gear number of even number, especially It is sufficient that it has the implementation method of two roller gears.
According to particularly advantageous design, superposition speed changer is coaxially arranged relative to one of two power branch lines, especially It is coaxially arranged relative to one of two hydrodynamic components in the first embodiment.Preferably, according to first embodiment phase For the first power branch line coaxially namely relative to mechanical pass-through facility or fluid coupling coaxially, especially with respect to liquid The turbine wheel of power shaft coupling coaxially realizes the arrangement.With turning for the fluid power relative to fluid coupling arranged off-centre The coupling of speed/torque converter, the coupling especially with turbine wheel are complete by homopolar bevel gear in the simplest situations Into.Other implementation methods are also admissible.
According to the second alternative design it is contemplated that superposition speed changer is coaxial relative to the second power branch line Ground, the speed/torque converter especially with respect to fluid power are coaxially arranged.
Each design of arrangement possibility herein mainly to superposition speed changer is related.The superposition speed changer is simplest In the case of include only one epicyclic train, the first element of the epicyclic train including at least one gear ring shape, OK Second element of carrier shape and the third element of sun gear shape, wherein, sun gear is coupled with the outlet of power transmission equipment Or constitute the outlet of power transmission equipment.Especially in the case where fluid coupling and gear ring are coupled, the first variant is special It is not favourable, because herein the coupling with gear ring can be realized with method in a straightforward manner, and can be justified by single-stage simultaneously Stud wheel realizes the connection in the speed/torque converter planet carrier of fluid power.
In the alternative embodiment of the coaxial arrangement with the speed/torque converter relative to fluid power, although This equally realizes the single-stage connection of planet carrier, but only can also realize driving by a corresponding gearratio using gear ring.
If superposition speed changer include at least one epicyclic train, the epicyclic train with the first element, second yuan Part and third element, the turbine wheel of first element and fluid coupling at least indirectly being connected, second element With the turbine wheel of the speed/torque converter of fluid power at least indirectly coupling, the third element is adjustable with rotating speed The outlet of speed changer is at least indirectly being connected or constitute the outlet of the adjustable speed changer of the rotating speed, then especially have in one kind In the arrangement of profit, the first element of epicyclic train is made up of the gear ring of epicyclic train, and the second element is by epicyclic train Planet carrier is constituted, and third element is made up of the sun gear of epicyclic train.
Specify in a kind of particularly advantageous design of the extended mode, brake apparatus is between inlet and outlet Before being arranged in power stream after the speed/torque converter of fluid power and being superimposed speed changer.It is possible thereby to be set in superposition speed changer The supporting to element is realized in the case of counting into epicyclic train.In the first embodiment, when engaging means are opened and are changed When device is emptied, namely when in the adjustment region in shaft coupling, especially active is braked.
The brake apparatus for being used in the first embodiment can be implemented with different type.The brake apparatus is played and stopped The function of machine device.The arresting gear is configured to the brake apparatus of fluid power by favourable mode.The brake apparatus includes turning Son and stator, the rotor can be coupled with the turbine wheel of converter, and the stator is supported on the component of position fixation, outstanding On its housing.The implementation method allows friction free to brake, and also allows using identical with converter and/or fluid coupling Operation medium supply system.The brake apparatus of fluid power also provided is the advantage of relatively low physical dimension.
Alternative embodiment is that brake apparatus is configured to the brake apparatus of machinery, especially disc brake apparatus, for example Disk type friction brake.The operation of the brake apparatus can be by machinery, fluid power, pneumatic, electric or aforesaid way combination side Formula is realized.When fluid power is operated, the operation medium of hydrodynamic unit is used as pressure medium.Other embodiment party of brake apparatus Formula is also admissible.
Preferably as the supplement to above-mentioned measure in a kind of favourable extended mode, in superposition speed changer and brake apparatus Between locking device is set, the locking device includes the locking system for overcoming rotary locking.The locking system is most simple Mechanical locking system is designed in the case of list, the mechanical locking system makes axle relative to fixed component, example As housing stops.
For two basic embodiments, it is contemplated that in the second power branch line in a kind of extended mode It is middle that the second converter with different switching device characteristic is set.Advantage is, the effect that the first converter declines in the range of speeds Rate is lifted.
Brief description of the drawings
Technology according to the present invention scheme is illustrated below in conjunction with accompanying drawing.Wherein specifically as shown below:
Fig. 1 is the local of the power station drive line with the adjustable speed changer of rotating speed according to first embodiment Simplified schematic figure, the adjustable speed changer of rotating speed is with two power branch lines of arranged off-centre;
Fig. 2 is the extended mode according to Fig. 1;
Fig. 3 is the local of the power station drive line with the adjustable speed changer of rotating speed according to second embodiment Simplified schematic figure, the adjustable speed changer of rotating speed is with two power branch lines of arranged off-centre;
Fig. 4 is the example of the expedients mode of the gear coupling of Double-gear shaft coupling shape.
Specific embodiment
Fig. 1 to Fig. 3 illustrates the power station drive line 1 of so-called main turbine drive shape with simplified schematic respectively Part, the main turbine drive is used to drive the pump 4 of variable speed, especially boiler feed pump, the power station drive line With arranged in the power train between the pump 4 of turbine and variable speed, the adjustable shape of speed changer 5 of rotating speed Two kinds of implementation methods.Power station drive line 1 includes at least one turbine operated with constant rotational speed, especially steam turbine 2 and/or gas turbine, the turbine can be connected or be connected with electric power equipment, especially generator 3.In turbine and rotating speed , into the power transmission equipment of the adjustable speed changer 5 of rotating speed, the rotating speed can for layout design in drive connection between variable pump 4 The speed changer of regulation includes at least one entrance E, outlet A and branched power, and the branched power is also claimed with least one Be the first power branch line 6 and the second power branch line 7 of fluid power of main branch line, wherein, driving power by fluid power power branch line 7 Branched out from the first power branch line 6, and the second work(is re-entered in transmission outlet side variable speed by superposition speed changer 8 Rate branch line 7.
The pump 4 of variable speed is at least indirectly namely directly or by transmitting element, for example coupling device and rotating speed are adjustable The outlet A of the speed changer 5 of section is connected.Turbine, it is herein connecting portion between steam turbine 2 and the speed changer 5 of variable speed It is configured to the length compensation 10 with axial direction.Therefore, being provided with the connection dress of axial length compensation 10 in the connecting portion Put 9.Default length compensation 10 reaches the scope of 10 to 50cm, preferably 10 to 30cm.Attachment means 9 are configured to tooth form shaft coupling Device 11, especially arc toothed shaft coupling.Cog-wheel coupling 11 particularly advantageous and it is simple and for use condition firmly Implementation method shown in the form of double cog-wheel couplings in fig. 4.The cog-wheel coupling can be installed and be applied to turbine In any connection between the adjustable speed changer 5 of rotating speed.Cog-wheel coupling 11 includes central support, especially supporting cover 12.The supporting cover is in installation site along the Longitudinal extending of power station drive line 1.In order to connecting element, especially vapor wheel Machine 2 and the adjustable speed changer 5 of rotating speed are coupled, and the cogged region 13,14 of tool is set on supporting cover 12, described with gear The region flange that is designed in the illustrated case with the integrated construction of supporting cover 12.The region is arranged in supporting cover 12 In axial end region.Flange has teeth portion in outer diameter, and the teeth portion is designed to cylinder teeth portion in the illustrated case.Each tooth Portion's element vertically and parallel to supporting cover 12 axis M extend, the axis in installation site with supporting cover 12 Rotation axis coincident.Can be engaged with the teeth portion in the region 13,14 with the teeth portion and counter element with teeth portion is connected unit Or part can be directly made up of the entrance E of turbine or the adjustable speed changer 5 of rotating speed, or by can be connected with the region and Connecting element with teeth portion is constituted.In the illustrated case, each connecting element is respectively for example by the company with spherical interior teeth portion Connect the composition of flange 15 and 16.
Power station drive line 1 shown in fig. 1 and 2 includes the adjustable speed changer 5 of rotation, the band of speed changer 5 The power branch line 6,7 of two arranged off-centres of with good grounds first embodiment.The adjustable speed changer 5 of rotating speed entrance E with The speed/torque converter (being referred to simply as converter 18 below) of fluid coupling 17 and fluid power is disposed between outlet A.Fluid power Shaft coupling 17 is arranged in the first power branch line 6, and converter 18 is arranged in the second power branch line.Each power branch line 6,7 leads to Transfer gear 20 is crossed to be connected with the entrance E of the adjustable speed changer 5 of rotating speed.Power branch line 6,7 is converged by being superimposed speed changer 8.Point Dynamic device 20, superposition speed changer 8 and two power branch lines 6,7 are arranged in housing 19.
Fluid coupling 17 includes at least one impeller of pump P17With turbine wheel T17.Fluid coupling 17 is furnished with to be used for Connect or bridge the device of fluid coupling 17.The device can be in the simplest situations so-called branch shaft coupling K1. But the bridge joint can also be realized otherwise.The bridge joint can be arranged directly between impeller of pump and turbine wheel Or the component being torsionally connected by impeller of pump and turbine wheel is realized.
Liquid force converter 18 includes at least one impeller of pump P18, turbine wheel T18With at least one directive wheel L18.Fluid power Converter 18 is used herein to rotating speed conversion and torque conversion, and fluid coupling 17 only has the function of rotational speed converter.It is logical Cross two power transmissions of power branch line 6,7 separately can be completed by power branch line 6, one of 7 herein, or one Bar in two branched powers of power branch line by completing.
The impeller of pump P of corresponding fluid coupling 1717With the impeller of pump P of liquid force converter 1818At least indirectly that is, directly The entrance E couplings for connecing or passing through transmitting element and the adjustable speed changer 5 of rotating speed.Coupling represents function connects, the work(herein Can connection can be by the impeller of pump P of the entrance E of power transmission equipment and corresponding fluid coupling17Or the pump of liquid force converter Impeller P18Between antitorque connection or formed with or without the transmitting element that speed/torque is changed by intermediate arrangement.In order to Two hydrodynamic units is coupled with entrance E, transfer gear 20 is set, power stream of the transfer gear along entrance and outlet between E, A is seen Examine preposition in two hydrodynamic units 17 and 18.Transfer gear 20 includes at least one entrance 21, and the entrance 21 can by rotating speed The entrance of the speed changer 5 of regulation is constituted or can also coupled with the entrance of the adjustable speed changer of rotating speed.Transfer gear 20 is in addition Also include at least two first outlets 22 that are connected with fluid coupling 17 of outlet and at least indirectly with the phase of liquid force converter 18 Second outlet 23 even.The turbine wheel T of fluid coupling 1717Or the turbine wheel T of liquid force converter 1818With rotating speed The coupling of the outlet A of adjustable speed changer 5 is realized by being superimposed speed changer 8.For this purpose, superposition speed changer includes two Entrance 24 and 25, wherein, the turbine wheel T of first entrance 24 and fluid coupling 1717It is connected, and second entrance 25 and liquid The turbine wheel T of force transducer 1818It is connected.Superposition speed changer 8 additionally includes at least one outlet 26, otherwise the outlet The outlet of the adjustable speed changer of rotating speed is constituted or constitutes by the outlet A of the adjustable speed changer 5 of rotating speed, otherwise can with rotating speed The outlet of the speed changer of regulation is connected, i.e., be at least cither indirectly or directly connected.
Fluid coupling 17 is designed to adjustable shaft coupling.Adjustable shaft coupling is furnished with adjusting means 28.According to the reality of shaft coupling Apply mode, it is also possible to be related to for example adjustable dip-tube.
In the present case, transfer gear 20 is for example designed to column gear transmission, and it includes even number roller gear, with Just realize that the rotation between power branch line is inverted with the direction of rotation between tropism and entrance E and power branch line.Rotating speed is adjustable The outlet A of the speed changer 5 of section is coaxially arranged relative to one of hydrodynamic unit, in the present case, relative to fluid power shaft coupling The turbine wheel T of device 17, especially fluid coupling 1717Coaxially arrange.
Superposition speed changer 8 includes at least one epicyclic train planetary train 27 in other words.Epicyclic train First element 29 herein with the turbine wheel T of fluid coupling 1717Couple, be preferably directly torsionally connected.Others are implemented Mode is also admissible.Another second element 30 of epicyclic train 27 is at least indirectly the whirlpool with liquid force converter 18 Engine blade wheel T18It is connected, and the third element 31 of epicyclic train 27 is connected with the outlet A of the adjustable speed changer 5 of rotating speed or straight Meet composition outlet A.In the present case, the first element 29 of epicyclic train 27 is made up of gear ring, and the second element 30 It is made up of planet carrier and third element 31 is made up of sun gear.Thus gear ring and planet carrier constitute the entrance of superposition speed changer 8 24 and 25 are joined directly together with the entrance 24 and 25 for being superimposed speed changer, and sun gear constitutes the outlet 26 of superposition speed changer 13. Planet carrier is realized by being connected speed changer 32 herein with the coupling of the second power branch line 7, in the simplest situations by single-stage Roller gear realizes that the homopolar bevel gear realizes the turbine wheel T of liquid force converter 1818With the rotation between entrance 25 Turn direction reversion.
Fluid coupling 17 and equipment, especially branch shaft coupling K1 and adjusting means 28 constitute so-called start unit and/ Or adjustment unit.The filling of fluid coupling 17 is carried out to starting and/or adjust.Whirlpool can be adjusted by adjusting means 28 Engine blade wheel T17Output speed.When the rotating speed of determination, especially synchronous rotational speed is reached, for connecting and and then passing through for machinery Logical device K1 is connected to entrance E and is superimposed between speed changer 8.Therefore it is pure by the power branch line 6 comprising fluid coupling 17 Mechanically transmit constant torque.The power fraction guided by liquid force converter 18 is input into superposition speed change by connecting speed changer 32 Device 8.Such as converter 18, it is usually formed from impeller of pump P18By at least one directive wheel L18To turbine wheel T18 Working media stream.It is parallel with, the direct coupling that power is carried out from input shaft E by transfer gear 20 and by device K1 and machine The transmission of tool ground.Two 6,7, power branch lines converge and are input into outlet A again by being superimposed the epicyclic train 27 of speed changer 8.
In order to ensure in operation area (converter 18 is drained in the operation area) to be superimposed speed changer 8 planet The supporting of frame, arranges brake apparatus 33 after converter 6, and the brake apparatus 33 is preferably designed to the brake apparatus of fluid power. Brake apparatus include being supported on the component of position fixation, the stator S especially on housing 19 and with turbine wheel T18Torsionally phase Rotor R even.
Additionally, Fig. 2 shows another liquid force converter 34 in the second power branch line 7.Another liquid force converter bag Include at least one impeller of pump P34, turbine wheel T34With directive wheel L34.The second liquid force converter in the second power branch line 7 34 are designed to so that the liquid force converter has the transfer characteristic different from the first converter 18.The advantage is that the first conversion The improved efficiency declined in rotary speed area of device 18.Second converter 34 is this relative to the first converter 18 coaxially cloth Put, and impeller of pump P34With entrance E at least indirectly coupling.Preferably, the impeller of pump P of the first converter 1818With the second conversion The impeller of pump P of device 3434It is arranged on common same axis.Impeller of pump passes through corresponding turbine wheel T18Or T34Connection spindle guide Draw.Preferably, same axis 36 is torsionally connected turbine wheel together.
Additionally, for example from entrance E to observing on the power stream of outlet A, for braking and/or locked superposition speed changer 13 The device 36 of the entrance 15 that can be connected with fluid coupling 4 is arranged in after the fluid coupling 17 in the first power branch line 6.It is attached Plus brake 36 be arranged on the turbine wheel T of fluid coupling 17 in the first power branch line 617Be superimposed between speed changer 8, And only schematically show herein.Brake 36 can be constituted in different forms.The brake or mechanical brake device of fluid power are all It can be consideration.
Fig. 3 illustrates the implementation method according to second embodiment with simplified schematic, wherein, power branch line 6 is designed to Purely mechanic power branch line with mechanical pass-through facility.Do not exist according to Fig. 1 and 2 in the first power in the power branch line Fluid coupling in branch line 6, and do not exist brake apparatus 33 in the second power branch line yet.Otherwise the basic structure then with Implementation method in Fig. 1 and Fig. 2 quite, therefore uses identical reference for similar elements.
It is shown in which to have according to the implementation method of Fig. 1 and Fig. 2 the gearratio for causing to accelerate, according to the implementation method of Fig. 3 With the gearratio for causing to slow down, especially when it is 3000 turns/min to drive rotating speed.In other applications, it is also possible to consider pin The gearratio for causing to slow down is set to each implementation method according to Fig. 1 and Fig. 2, is led for being set according to the implementation method of Fig. 3 Cause the gearratio for accelerating.Additionally can be in for the other application according to Fig. 1 and the implementation method of Fig. 2, by transfer gear Entrance is coaxially arranged also relative to one of two power branch lines.
In all shown implementation methods, attachment means 9 are preferably configured as cog-wheel coupling, especially bidentate shape shaft coupling Device.

Claims (15)

1. a kind of power station drive line, it is carried
- with the steam turbine (2) and/or gas turbine of constant rotation speed operation, for driving generator (3);
The pump of-variable speed, steam turbine (2) and/or gas turbine are supplied for conveying and/or compressible drive and/or process Working media, or for convey and/or compression process supply or gas turbine in formed waste gas, wherein, variable speed Pump, especially boiler feed pump are driven by steam turbine (2) and/or gas turbine, and
- layout design is the power transmission equipment of the adjustable speed changer of rotating speed (5) in drive connection, the power transmission sets Standby to include at least one entrance (E), outlet (A) and branched power, the branched power carries at least one first power branch lines (6) and fluid power the second power branch line (7), wherein, driving power by the power branch line (7) of fluid power by fluid coupling or Liquid force converter (18) is branched out from the first power branch line (6), and can in transmission outlet side rotating speed by superposition speed changer (8) Re-enter the first power branch line (6) with becoming;
Characterized in that, steam turbine (2) and/or gas turbine and power transmission equipment are by compensating (10) with axial length Attachment means (9) be connected.
2. power station drive line (1) according to claim 1, it is characterised in that the axial direction of the attachment means (9) is long Degree compensation (10) reaches the scope of 10 to 50cm, preferably 10 to 30cm.
3. power station drive line (1) according to claim 1 and 2, it is characterised in that the attachment means (9) are constituted It is cog-wheel coupling (11), especially arc toothed shaft coupling.
4. power station drive line (1) according to claim 3, it is characterised in that the cog-wheel coupling (11) includes Supporting member (12) with size in the axial direction, the supporting member has at least one to carry teeth portion in being constructed first Region (13), described at least one region (13) with teeth portion with least one adjustable with turbine (2) and/or rotating speed Teeth portion phase in the connecting element that is speed changer (5) coupling or being made up of turbine and/or the adjustable speed changer of rotating speed of section Engagement, or
The cog-wheel coupling (11) is configured to double cog-wheel couplings, and described pair of cog-wheel coupling includes thering is chi in the axial direction Very little supporting member (12), the supporting member has a regions (13,14) with two teeth portion, described to carry two teeth portion Region (13,14) is arranged in the corresponding end regions of supporting member (12), wherein, the teeth portion respectively with Being coupled with turbine (2) or the adjustable speed changer of rotating speed (5) or be made up of turbine or the adjustable speed changer of rotating speed Connecting element on teeth portion be meshed.
5. power station drive line (1) according to any one of claim 1 to 4, it is characterised in that
- the first and second power branch lines (6,7) are parallel to each other or prejudicially arrange;
- the first and second power branch lines (6,7) are adjustable with rotating speed respectively by the transfer gear (20) being arranged in housing (19) Speed changer (5) entrance (E) be connected;
- the first power branch line (6) is configured to the mechanical pass-through facility without hydrodynamic component;
- the second power branch line (7) includes only one fluid power speed/torque converter (18) in the first construction, and the fluid power turns Speed/torque converter has at least one impeller of pump (P18), turbine wheel (T18) and directive wheel (L18), or
In the second configuration except with least one impeller of pump (P18), turbine wheel (T18) and directive wheel (L18) first Outside fluid power speed/torque converter (18), also including the second other fluid power speed/torque converter (34), described second Fluid power speed/torque converter (34) coaxially arranges relative to the first fluid power speed/torque converter (18), wherein, it is described Second fluid power speed/torque converter (34) is with the transfer characteristic different from the first fluid power speed/torque converter (18);
- each speed/torque converter (18,34) can be applied to different operation areas.
6. power station drive line (1) according to any one of claim 1 to 4, it is characterised in that
- the first and second power branch lines (6,7) are parallel to each other or prejudicially arrange;
- the first and second power branch lines (6,7) are adjustable with rotating speed respectively by the transfer gear (20) being arranged in housing (19) Speed changer (5) entrance (E) be connected;
- arrangement includes at least one impeller of pump (P in the first power branch line (6)17), turbine wheel (T17) and for bridge joint The fluid coupling (17) of device (K1);
- arrangement at least one includes at least one impeller of pump (P in the second power branch line18), turbine wheel (T18) and be oriented to Wheel (L18) fluid power speed/torque converter (18), wherein, two power branch lines (6,7) can by be superimposed speed changer (8) with The outlet (A) is connected;
- fluid power speed/torque converter (18) and fluid coupling (17) are mutually eccentric, preferably abreast arrange, and can Two are being constituted by the transfer gear (20) being arranged in housing (19) with the entrance (E) of the adjustable speed changer of rotating speed (5) respectively It is connected in the case of individual power branch line (6,7).
7. the power station drive line (1) according to claim 5 or 6, it is characterised in that superposition speed changer (8) is first Or second coaxially arrange in power branch line (6,7), and corresponding another power branch line (7,6) is with to be superimposed speed changer (8) logical Cross connection speed changer (32) coupling.
8. power station drive line (1) according to claim 7, it is characterised in that
- superposition speed changer (8) includes at least one epicyclic train (27);
- the epicyclic train (27) includes the first element (29), and first element is relative to the component that torque is transmitted, i.e. liquid Axle in the case of the turbine wheel (T17) of power shaft coupling (17) or purely mechanic insertion in the first power branch line (6) coaxially The component arranged and transmitted with the torque is connected;
- the epicyclic train (27) includes the second element (30), second element at least indirectly with fluid power speed/torque Turbine wheel (the T of converter (18)18) coupling in the second power branch line (7);
- the epicyclic train (27) includes third element (31), and the third element is at least indirectly adjustable with rotating speed The outlet (A) of speed changer (5) is connected or constitutes the outlet of the adjustable speed changer of rotating speed.
9. the power station drive line (1) according to any one of claim 6 to 8, it is characterised in that in the second power branch The second other fluid power speed/torque converter (34) is set in line (7), and the second fluid power speed/torque converter is relative Coaxially arranged in the first fluid power speed/torque converter (18), wherein, the second fluid power speed/torque converter (34) has The transfer characteristic different from the first fluid power speed/torque converter (18), and each speed/torque converter (18,34) energy Enough it is applied to different operation areas.
10. the power station drive line (1) according to any one of claim 5 to 9, it is characterised in that first and second Fluid power speed/torque converter (18,34) includes at least one impeller of pump (P respectively18、P34), turbine wheel (T18、T34) and Directive wheel (L18、L34), wherein, the turbine wheel (T of the first and second fluid power speed/torque converters (18,34)18、T34) logical Hollow shaft (36) interconnection, and hollow shaft (36) are crossed by the entrance phase that connects speed changer (32) be superimposed speed changer (8) Connect or constitute the entrance (25) of superposition speed changer (8).
The 11. power station drive line (1) according to any one of claim 6 to 10, it is characterised in that in the second power The turbine wheel for being provided for making converter (18) in branch line (7) brakes/locked brake apparatus (33).
The 12. power station drive line (1) according to any one of the claims, it is characterised in that transfer gear (20) Including at least one entrance (21), the entrance constitute the adjustable speed changer of rotating speed (5) entrance (E) or at least indirectly with The entrance of the adjustable speed changer of rotating speed is torsionally connected, and the transfer gear (20) includes at least two outlets (22,23), The outlet mutually prejudicially arranges, wherein, first outlet (22) can with the first power branch line (6) at least indirectly being connected, And second outlet (23) can be with the impeller of pump (P of fluid power speed/torque converter (18)18) at least indirectly be connected, wherein, The entrance (21) of transfer gear (20) is coaxial relative to the entrance of one of power branch line (6,7) or prejudicially arranges.
The 13. power station drive line (1) according to any one of claim 1 to 12, it is characterised in that the transfer gear (20) design is with the gearratio for causing to slow down for the first and/or second power branch line (6,7) or causes the transmission for accelerating Than.
The 14. power station drive line (1) according to any one of claim 1 to 13, it is characterised in that liquid force converter (18) reverse converter is designed to, and transfer gear (20) includes the roller gear group with two or even number roller gear, Wherein, the first outlet (22) of transfer gear (20) is made up of the first roller gear, and transfer gear (20) second outlet (23) Constituted by with the second roller gear or other roller gears that are inversely driven in the direction of rotation of the first roller gear.
The 15. power station drive line (1) according to any one of claim 1 to 13, it is characterised in that liquid force converter (18) converter in the same direction is designed to, and transfer gear (20) includes the roller gear group with three or odd number roller gear, Wherein, the first outlet (22) of transfer gear (20) is made up of the first roller gear, and transfer gear (20) second outlet (23) Constituted by with the second roller gear or other roller gears that are driven with the first roller gear identical direction of rotation.
CN201610940644.8A 2015-10-22 2016-10-24 Power station transmission line Active CN106884686B (en)

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CN110966052A (en) * 2019-12-02 2020-04-07 东方电气集团东方汽轮机有限公司 Compressor and turbine integrated unit and operation method thereof
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