CN205578118U - High -speed small -size gas turbine generating system that declines that directly drives - Google Patents
High -speed small -size gas turbine generating system that declines that directly drives Download PDFInfo
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- CN205578118U CN205578118U CN201620365434.6U CN201620365434U CN205578118U CN 205578118 U CN205578118 U CN 205578118U CN 201620365434 U CN201620365434 U CN 201620365434U CN 205578118 U CN205578118 U CN 205578118U
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Abstract
The utility model provides a high -speed small -size gas turbine generating system that declines that directly drives, including microminiature gas turbine and high speed motor system, microminiature gas turbine includes low pressure compressor, high pressure compressor, gas generator, nozzle ring, high -pressure turbine, low pressure turbine, regenerator, utilizes the high temperature regenerator to retrieve exhaust gas waste heat to heating highly -compressed air improves combustion temperature, reaches increasing the heat efficiency's purpose, adopt the twin axle to arrange and do not have stator counterrotating turbine designing technique, on simplify the structure, improving the basis of stability, realized the part blocking to maintain in the dismouting. High speed motor uses as motor and generator respectively when start -up and normal operation, and is directly continuous with microminiature gas turbine high pressure shaft and electric motor rotor through the shaft coupling, has removed free turbine and the reduction gears bulky, that the structure is complicated from, has improved the compactedness of whole system greatly, feasible the utility model discloses the core facility of the distributed energy supply of especially adapted conduct.
Description
Technical field
This utility model relates to a kind of gas turbine generating system, is related specifically to a kind of high-speed direct-drive and declines
Small size gas turbine electricity generation system.
Background technology
In recent years, along with the energy in global range and the requirement such as power demand structure and environmental conservation
Change, microminiature gas turbine is paid high attention to and is developed rapidly.It is by compressor, combustion gas
Generator, the big parts of turbine three form.It has that volume is little, power density is big, suitability of fuel is strong,
The features such as disposal of pollutants is low, can provide cleaning, the energy reliable, high-quality for stand-by station, it is achieved point
The functions such as cloth generates electricity, generates electricity by way of merging two or more grid systems, peakload generating, application prospect is extensive.External for small
The research starting of type gas turbine relatively early, has had Multiple Type product in comercial operation.State
It is interior through more than ten years development, although tentatively to have grasped microminiature gas turbine complete equipment design and manufacturing technology,
But still do not have the series of products of maturation to put goods on the market.
Microminiature gas turbine rotary speed is higher, and conventional power generation systems is typically joined between electromotor and electromotor
Put gear reduction box, after utilizing it to slow down, drive low-speed generator generating.Gear reduction box volume is huge
Greatly, structure complicated, thus counteract the advantage that microminiature gas turbine structure is compact.For adapting to the marketization
Requirement, need to be according to the feature of microminiature gas turbine generating system, further reduction system volume, raising
Energy conversion efficiency, strengthens power plant service reliability simultaneously, reduces maintenance difficulty, to realize microminiature combustion
Gas-turbine and the industrialization of electricity generation system, commercialization.
Utility model content
(1) to solve the technical problem that
For solving above-mentioned one or more problems, the utility model proposes a kind of direct-drive type microminiature
Gas turbine generating system, using the nucleus equipment as distributed energy supply.
(2) technical scheme
The technical scheme that this utility model is taked by its technical problem of solution is:
A kind of direct-drive type microminiature gas turbine generating system, including microminiature gas turbine and high-speed electric expreess locomotive
System, described microminiature gas turbine includes low-pressure compressor, high-pressure compressor, low-pressure turbine and high pressure
Turbine, described high-speed electric expreess locomotive system includes high-speed electric expreess locomotive, it is characterised in that described low-pressure compressor is with low
Pressure turbine is connected by low-pressure shaft, is arranged in the side of described electricity generation system；Described high-pressure compressor is with high
Pressure turbine is connected by high-pressure shaft, is arranged in the opposite side of described electricity generation system；Described high-pressure shaft is by connection
Axial organ is joined directly together with high-speed electric expreess locomotive.
Preferably, described microminiature gas turbine also includes that regenerator, described regenerator are arranged on described height
Between pressure compressor and gas generator, the hot side of described regenerator is passed through the outlet combustion of described low-pressure turbine
Gas, the cold side of described regenerator is passed through the high pressure air that described high-pressure compressor produces.
Further, described regenerator is high-temperature heat-exchanging, uses plate-fin or original surface formula heat exchange
Device.
Preferably, described high-pressure turbine and low-pressure turbine use without stator to turn mode arranges, the two it
Between be not provided with stator blade, two-stage movable vane direction of rotation is contrary.
Preferably, described low-pressure compressor is single-stage axial or centrifugal-flow compressor；Described high pressure is calmed the anger
Machine is single stage centrifugal or diagonal flow type compressor.
Preferably, described high-speed electric expreess locomotive system also includes power inverter, described power inverter and high speed
Motor electrically connects.
Preferably, described high-speed electric expreess locomotive is permagnetic synchronous motor.
In direct-drive type microminiature gas turbine generating system of the present utility model, low pressure components and high voltage component
Employing twin axle is arranged, low-pressure compressor is connected by low-pressure shaft with low-pressure turbine, is arranged in side；High
Pressure compressor is connected by high-pressure shaft with high-pressure turbine, is arranged in opposite side, and as power output shaft.
Being provided with regenerator between high-pressure compressor and gas generator, air heats up through two stages of compression and by regenerator
After, enter combustor, with fuel mixed combustion, produce high-temperature high-pressure fuel gas.Two-stage turbine uses without leading
Leaf counter rotating turbine designs, and is not provided with stator blade, two-stage movable vane direction of rotation phase between low-pressure turbine and high-pressure turbine
Instead.Partial heat energy pressure, by impacting high-pressure turbine after nozzle ring, can be converted by high-temperature high-pressure fuel gas
For the mechanical power rotated, in addition to being used for driving high-pressure compressor, also will be used for driving high-speed electric expreess locomotive system to send out
Electricity；Fuel gas flow utilizes its outlet to prewhirl through high-pressure turbine, is directly blown into low-pressure turbine again by part
Heat energy pressure can be converted into rotating mechanical energy, is used for driving low-pressure compressor.Low-pressure turbine exit combustion gas is still
There is higher temperature, be used for heating pressure-air as thermal source using entrance regenerator.
Described microminiature gas turbine rated power is 1MW, and rotating speed is 28000～38000rpm, air
Flow is 4.8kg/s, and fuel flow rate is 180kg/h, and ignition temperature is 1220K, and delivery temperature is
600K。
Described low-pressure compressor can use single-stage axial or centrifugal-flow compressor, and pressure ratio is 1.8；High pressure
Compressor can use single stage centrifugal or diagonal flow type compressor, and pressure ratio is 4.2.
Described regenerator uses high temperature plate-fin or original surface formula heat exchanger, and effectiveness of regenerator is 0.9.
High-speed electric expreess locomotive system includes permagnetic synchronous motor and power inverter, will make in such a system simultaneously
Using for motor and electromotor, rotor is by diaphragm coupling and microminiature gas turbine high-pressure shaft
It is directly connected to.Microminiature gas turbine startup stage, high-speed electric expreess locomotive system uses as motor, merit
The low-frequency electrical of input is reverse into high-frequency electrical by rate changer, and permagnetic synchronous motor starts and drives microminiature to fire
Gas-turbine rotates, and electric energy is converted into rotating mechanical energy；After microminiature gas turbine normally starts, heat energy
It is converted into rotating mechanical energy, is exported by high-pressure turbine shaft, drive permagnetic synchronous motor to rotate, now
High-speed electric expreess locomotive system uses as electromotor, is electric energy by changes mechanical energy, and is incited somebody to action by power inverter
High-frequency electrolysis furnishing rated frequency exports.
(3) beneficial effect
Compared with the existing technology, direct-drive type microminiature gas turbine generating system of the present utility model have with
The most significant technique effect:
(1) compact conformation: microminiature gas turbine rotary speed is higher, output shaft typically first slows down with gear
Device is connected, and is connected with low-speed generator group after reduction of speed again.This utility model passes through diaphragm coupling by high pressure
Turbine wheel shaft is joined directly together with rotor, owing to need not power turbine and heavy reduction box and low speed electricity
Machine, so that whole system volume is greatly reduced；Additionally, high-speed electric expreess locomotive system startup stage can make
Use for motor, thus eliminate extra startup motor so that structure is compacter.
(2) thermal efficiency is high: conventional gas turbine exhaust gas temperature is higher, and heat energy utilization is insufficient, therefore
The thermal efficiency is low.This utility model is provided with regenerator, utilizes low pressure turbine exhaust as thermal source, heating height
Pressure air, improves average combustion temperature, thus improves heat energy overall efficiency.10%, 70% and
Under 100% rated power, heat energy efficiency has respectively reached 36%, 42%, 40%, maintains a Gao Shui
Flat, thus improve the economy of system.
(3) structure is reliable: this utility model microminiature gas turbine uses twin axle to arrange, i.e. high pressure
Parts are arranged symmetrically with low pressure components, on the one hand shorten the wheelbase of high-pressure shaft and low-pressure shaft, alleviate length
The problems such as intensity that axle brings, vibration；It also avoid simultaneously centering that inner-outer birotor system brings,
The problems such as support structure design.
(4) component unit: this utility model microminiature gas turbine uses twin axle to arrange, small
Type gas turbine is connected by diaphragm coupling with rotor, therefore high voltage component, low pressure components, return
Hot device, high-speed electric expreess locomotive system can individually be dismantled, thus facilitate maintenance, repair operation.
Additionally, this utility model uses vaneless counter-rotating turbine design, it is not provided with between high and low pressure turbine leading
Leaf, on the one hand shortens axial length, reduces volume；On the other hand eliminate air-flow to roll in stator
Turn the flow losses caused, improve overall efficiency；Also simplify described microminiature gas turbine simultaneously
Structure, is more conducive to run, keep in repair.
This utility model is by multiple to high-speed electric expreess locomotive, backheat, twin-shaft turbine and counter rotating turbine etc.
The comprehensive utilization of technology, reduces the volume of miniature gas turbine further, is improving energy conversion efficiency
While, consider the maintenance cost of reliability of structure and later stage, thus there is higher competition
Power.
Accompanying drawing explanation
Fig. 1 is that high-speed direct-drive of the present utility model declines small size gas turbine electricity generation system schematic diagram.
Detailed description of the invention
Being described in further detail this utility model below in conjunction with embodiment, following example are to this reality
With novel explanation, this utility model is not limited to following example.
As it is shown in figure 1, as an embodiment, high-speed direct-drive of the present utility model declines small gas wheel
Machine electricity generation system is mainly by microminiature gas turbine 15, high-speed electric expreess locomotive system 16 and diaphragm coupling 12 groups
Become.Described microminiature gas turbine 15 includes low-pressure compressor 2, high-pressure compressor 3, gas generator
4, nozzle ring 5, high-pressure turbine 6, low-pressure turbine 7, regenerator 8, high pressure rotor 11 and low pressure
Rotor 10.Microminiature gas turbine is that twin axle is arranged, low-pressure compressor 2 and low-pressure turbine 7 are by low
Pressure rotor 10 connects, and is arranged in side；High-pressure compressor 3 and high-pressure turbine 6 are by high pressure rotor 11
Connect, be arranged in opposite side；High pressure rotor 11 is also output shaft simultaneously.Described high-speed electric expreess locomotive system 16
Including permagnetic synchronous motor 13 and power inverter 14, by diaphragm coupling 12 by high pressure rotor 11
It is joined directly together with rotor.
During system start-up, high-speed electric expreess locomotive system 16 uses as motor, and input current is through power conversion
Device 14 is converted into 1～1000Hz high-frequency electrical, and magneto 13 is started and calmed the anger by axle 11 band dynamic high-pressure
Machine 3 and high-pressure turbine 6 rotate, and enter gas generator 4, with fuel after now partial air is compressed
Produce high-temperature high-pressure fuel gas after mixed combustion, after nozzle ring 5 and high-pressure turbine 6, utilize height
The outlet of pressure turbine 6 is prewhirled, and without nozzle ring, directly blows and hits low-pressure turbine 7, makes low pressure whirlpool
Wheel 7 reverse rotation, drives low-pressure compressor 1 to rotate by axle 10, thus completes microminiature gas turbine
The startup of 15.
After microminiature gas turbine 15 normally starts, high-speed electric expreess locomotive system 16 will make as electromotor
With.Air 1, after low-pressure compressor 2, high-pressure compressor 3 two stages of compression, enters regenerator 8, utilizes
After the exhaust heat of low-pressure turbine 7 heats up, enter gas generator 4, thus improve ignition temperature.Produce
Raw combustion gas passes sequentially through nozzle ring 5, high-pressure turbine 6, low-pressure turbine 7, by partial heat energy pressure
Can be converted into rotating mechanical energy, wherein high-pressure shaft 11 drives magneto 13 to revolve by diaphragm coupling 12
Turning, rotating mechanical energy is converted into electric energy, and electric current is become rated frequency by power inverter 14 by conciliation
Output.The aerofluxus of low-pressure turbine 7 enters regenerator 8, for heated compressed air, final vacuum 9 with
The temperature of 600K is discharged.
The microminiature gas turbine of this utility model design, by regenerator heated compressed air, makes full use of
The exhaust heat of low-pressure turbine, had both improve average combustion temperature, had reduced again exhaust gas temperature so that
Microminiature gas turbine has the higher thermal efficiency；Twin axle layout is combined with vaneless counter-rotating turbine technology
Close and utilize, both simplified structure, and reduced volume, bring facility to later stage dismounting, maintenance again；Profit
Directly drive high-speed electric expreess locomotive system to work with microminiature gas turbine, eliminate bulky, structure is complicated
Intermediate reduction gear mechanism, effectively reduce the complexity of whole system, it is achieved that the target of compact conformation,
Simultaneously without extra startup motor, further simplify system.In view of feature of the present utility model,
It is highly suitable as the nucleus equipment of distributed power supply system, reduces the dependence to grid equipment, both can make
For portable power source, rapid deployment start and stop, provide interim electricity for army, communication device, emergency set etc.
Power；Also can be as stand-by power supply, continuous reliability service, for remote countryside, offshore oilfield, large-scale business
Field, office block etc. provide stablizes the energy.
Above-mentioned fuel oil cooled evaporation tube structure of the present utility model, can be applicable to electromotor or other burning
Combustor in device, each section surface of evaporation tube inner sleeve is disposed with connection conduit and dividing plate, with evaporation tube overcoat
Each section forms inner flow passage formula heat exchange cavity, and fuel pipe inlet is arranged in evaporation tube outlet section, evaporation tube inner sleeve
Inducer is disposed with fuel nozzle.This utility model makes fuel oil arrive steaming from evaporation tube outlet section internal cavity
Send out pipe inducer fuel nozzle, evaporation tube wall is cooled down, complete the hot ablation to evaporation tube and protect
Protect；Every road fuel oil independently preheats, and improves fuel-firing preheating degree, strengthens EVAP and premixing effect.Totally
Design makes evaporation tube obtain cooling protection, improves service life；Make fuel oil obtain high intensity preheating, improve
Evaporation premix degree.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, its parts and components
Shape, be named title etc. can be different.All according to constructing described in this utility model inventional idea, feature and former
Manage the equivalence or simple change done, be all included in the protection domain of this utility model patent.This practicality
Described specific embodiment can be made various amendment by novel person of ordinary skill in the field
Or supplement or use similar mode to substitute, without departing from structure of the present utility model or surmount this power
Scope defined in profit claim, all should belong to protection domain of the present utility model.
Claims (9)
1. high-speed direct-drive declines a small size gas turbine electricity generation system, including microminiature gas turbine and
High-speed electric expreess locomotive system, described microminiature gas turbine includes low-pressure compressor, high-pressure compressor, low pressure whirlpool
Wheel and high-pressure turbine, described high-speed electric expreess locomotive system includes high-speed electric expreess locomotive, it is characterised in that described low pressure pressure
Mechanism of qi is connected by low-pressure shaft with low-pressure turbine, is arranged in the side of described electricity generation system；Described high pressure pressure
Mechanism of qi is connected by high-pressure shaft with high-pressure turbine, is arranged in the opposite side of described electricity generation system；Described high pressure
Axle is joined directly together with high-speed electric expreess locomotive by shaft coupling.
High-speed direct-drive the most according to claim 1 declines small size gas turbine electricity generation system, its feature
Being, described microminiature gas turbine also includes that regenerator, described regenerator are arranged on described high pressure and calm the anger
Between machine and gas generator, the hot side of described regenerator is passed through the outlet gas of described low-pressure turbine, institute
The cold side stating regenerator is passed through the high pressure air that described high-pressure compressor produces.
High-speed direct-drive the most according to claim 2 declines small size gas turbine electricity generation system, its feature
Being, described regenerator is high-temperature heat-exchanging, uses plate-fin or original surface formula heat exchanger.
High-speed direct-drive the most according to claim 1 declines small size gas turbine electricity generation system, its feature
Being, described high-pressure turbine and low-pressure turbine use to be arranged the mode turned without stator, does not sets
Putting stator blade, two-stage movable vane direction of rotation is contrary.
High-speed direct-drive the most according to claim 1 declines small size gas turbine electricity generation system, its feature
Being, described low-pressure compressor is single-stage axial or centrifugal-flow compressor；Described high-pressure compressor is single
Centrifugal or the diagonal flow type compressor of level.
High-speed direct-drive the most according to claim 1 declines small size gas turbine electricity generation system, its feature
Being, described low-pressure compressor is single-stage axial or centrifugal-flow compressor.
High-speed direct-drive the most according to claim 1 declines small size gas turbine electricity generation system, its feature
Being, described high-pressure compressor is single stage centrifugal or diagonal flow type compressor.
High-speed direct-drive the most according to claim 1 declines small size gas turbine electricity generation system, its feature
Being, described high-speed electric expreess locomotive is permagnetic synchronous motor.
High-speed direct-drive the most according to claim 1 declines small size gas turbine electricity generation system, its feature
Being, described shaft coupling is diaphragm coupling.
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| CN201620365434.6U CN205578118U (en) | 2016-04-26 | 2016-04-26 | High -speed small -size gas turbine generating system that declines that directly drives |
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| CN201620365434.6U CN205578118U (en) | 2016-04-26 | 2016-04-26 | High -speed small -size gas turbine generating system that declines that directly drives |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948878A (en) * | 2016-11-11 | 2017-07-14 | 罗显平 | Closing type gas combustion screwed pipe rotor engine unit |
| CN108131200A (en) * | 2018-02-11 | 2018-06-08 | 温岭市仁全机械设备有限公司 | A kind of novel low value coal gas gas turbine combined cycle power plant device |
| CN108343510A (en) * | 2018-02-11 | 2018-07-31 | 诸暨市基麦罗进出口有限公司 | A kind of Ultra-precision Turning manufacturing device |
| CN108343511A (en) * | 2018-02-11 | 2018-07-31 | 温岭市仁全机械设备有限公司 | A kind of low-heat value gas gas turbine combined cycle power plant device |
| CN112696269A (en) * | 2020-11-18 | 2021-04-23 | 靳普 | Multi-rotor micro gas turbine and starting method thereof |
| CN113597499A (en) * | 2019-04-26 | 2021-11-02 | 西门子能源美国公司 | Hydraulic fracturing system including mobile power generation subsystem with direct-coupled generator |
| CN115492690A (en) * | 2022-09-27 | 2022-12-20 | 中国航发燃气轮机有限公司 | Starting structure and starting method of light multi-shaft gas turbine |
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2016
- 2016-04-26 CN CN201620365434.6U patent/CN205578118U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106948878A (en) * | 2016-11-11 | 2017-07-14 | 罗显平 | Closing type gas combustion screwed pipe rotor engine unit |
| CN108131200A (en) * | 2018-02-11 | 2018-06-08 | 温岭市仁全机械设备有限公司 | A kind of novel low value coal gas gas turbine combined cycle power plant device |
| CN108343510A (en) * | 2018-02-11 | 2018-07-31 | 诸暨市基麦罗进出口有限公司 | A kind of Ultra-precision Turning manufacturing device |
| CN108343511A (en) * | 2018-02-11 | 2018-07-31 | 温岭市仁全机械设备有限公司 | A kind of low-heat value gas gas turbine combined cycle power plant device |
| CN113597499A (en) * | 2019-04-26 | 2021-11-02 | 西门子能源美国公司 | Hydraulic fracturing system including mobile power generation subsystem with direct-coupled generator |
| CN112696269A (en) * | 2020-11-18 | 2021-04-23 | 靳普 | Multi-rotor micro gas turbine and starting method thereof |
| WO2022105213A1 (en) * | 2020-11-18 | 2022-05-27 | 至玥腾风科技集团有限公司 | Multi-rotor micro gas turbine, and starting method therefor |
| CN115492690A (en) * | 2022-09-27 | 2022-12-20 | 中国航发燃气轮机有限公司 | Starting structure and starting method of light multi-shaft gas turbine |
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