CN104847425B - A kind of external-burning Boulez pauses combined cycle generating unit - Google Patents
A kind of external-burning Boulez pauses combined cycle generating unit Download PDFInfo
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- 239000000446 fuel Substances 0.000 claims abstract description 24
- 239000002918 waste heat Substances 0.000 claims abstract description 3
- 239000007789 gas Substances 0.000 claims description 20
- 238000002485 combustion reaction Methods 0.000 claims description 16
- 230000005611 electricity Effects 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 125000004122 cyclic group Chemical group 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 239000003546 flue gas Substances 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 5
- 230000001172 regenerating effect Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 230000002950 deficient Effects 0.000 abstract description 2
- 239000000567 combustion gas Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000010248 power generation Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
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- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 230000004899 motility Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
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- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The combined cycle generating unit the present invention relates to a kind of external-burning Boulez pauses, circulation combined running mode that this device pauses circulation using top Boulez and bottom Boulez pauses, the top Boulez higher air of temperature that turbine in circulation discharges that pauses by the use of external-burning pauses as bottom Boulez the thermal source of circulation；Bottoming cycle uses air as working medium, after reclaiming the air waste heat that top circulatory turbine machine is discharged, pauses circulating generation for bottom Boulez.This device makes the range of choice of fuel increase, and the heat energy utilization that burning produces is more reasonable, and due to avoiding the impact to turbine for the dirt in working medium, the safety of turbine is protected, and reaches energy-saving purpose, is particularly suitable for water-deficient area and uses.
Description
Technical field
The combined cycle generating unit the present invention relates to a kind of external-burning Boulez pauses, concrete genus gas turbine power generation technical field.
Background technology
Advanced gas turbine is the key equipment of the 21 century energy and dynamical system, is also a current country in the world
The important symbol of the advanced degree of industrial foundation.Develop advanced gas turbine technology and there is great strategic significance and wide industry
Change prospect, has extremely important effect for the hi-tech development in China's association area.
Large Copacity, efficient gas turbine and its combined cycle have become the trend of a certainty, and the generating in the world is held
Shared share even more significantly rapid growth in amount.In recent years since, a kind of distribution with little miniature gas turbine as core
Swift and violent emergence earned by formula energy resource system and supply unit, has greatly the trend accounting for market with large and medium-sized gas turbine altogether.This,
Power supply mode has following some advantages：It does not have or have very low transmission ＆ distribution electrical loss (for centralized power supply system,
This loss at least up to 10% about, in China even up to more than 15%)；Power distribution station need not be built, it is possible to reduce transmission ＆ distribution
Electric cost；It is suitable for the change of multiple hotspot stress, system can be made flexibly to be adjusted according to the demand of thermic load or electric load,
Be conducive to the utilization rate of raising equipment；It is easy to, closely to user's heat supply and refrigeration, the transmission pipeline network of costliness need not be set up,
Thus expense of can reducing investment outlay, the utilization ratio of the energy can be improved, civil engineering and installation cost can reduce again；Each power station
Independent mutually, it is easy to voluntarily control, large-scale accident of power supply will not occur, thus the reliability of power supply is high, very suitable
It is suitable for and provide electric power, heat supply and refrigeration for shopping centre, residential block or even airport and subway station etc.；Using clean fuel
Under the premise of, even if in thickly populated city area, the requirement of high standard environment-friendly quality also can be met.This will for medium-sized,
The popularization and application of particularly little miniature gas turbine, provide a brand-new opportunity and market.
Chinese patent 201320854012.1 provides a kind of Kano-open Bretton hybrid power generation equipment, using combustion
The heat that material fuel produces, air after compressor compression for the heating, drag gas turbine expansion work, its essence is logical
Cross the pressure design optimizing and appropriate heating-up temperature, be not provided with regenerator in cyclic process so that open Boulez pauses follows
The temperature of ring emission is close to the air themperature of environment, thus effectively increasing the output of work(, therefore how to expand it
Range of application is worth research.
The circulation of external combustion gas turbine grows up on the basis of gas-turbine with regenerator circulation, its structure and backheat
Loop structure is similar.In external-burning gas turbine cycle, combustor is replaced by the regenerator of high temperature, and increases outside
One substitute fuel combustor is it is achieved that the indirectly heat of combustion gas turbine.In substitute fuel combustor, fuel is
Burnt in the pressure of a little higher than ambient atmosphere.This circulation distinguishing feature be：Achieve indirectly adding of combustion gas turbine
Heat, make combustion gas without turbine, it is to avoid the dirt in fuel is blended in flue gas after burning, and then to turbine
The damage that machine causes.External combustion gas turbine circulates as biomass fuel or other solid fuels in gas turbine engine systems
Using providing a kind of new selection, thus it is that a kind of up-and-coming, efficient, cheap renewable energy utilization sets
Standby, it can reduce the discharge of greenhouse gases simultaneously.
Therefore how to solve the problems, such as existing gas-turbine with regenerator circulating technology, set up in hgher efficiency, safe outer
Combustion Boulez pauses combined cycle generation pattern, expands the Application Range of fuel in gas turbine cycle, so that fuel combustion is produced
Heat energy utilization more reasonable, effectively reduce the discharge of greenhouse gases, become the difficult point of this area research.
Content of the invention
The present invention is for solving the problems, such as prior art, provides a kind of external-burning Boulez to pause combined cycle generating unit,
Top circulation adopts external combustion gas turbine Cycle Unit, and bottoming cycle selects air to pause as Boulez the working medium of circulation, reclaims top
The waste heat of gas is discharged in circulation, pauses circulating generation for bottom Boulez, thus form external-burning Boulez pausing combined cycle generation
System, reaches energy-saving purpose.
The purpose of the present invention is realized by following measures：
A kind of external-burning Boulez pauses combined cycle generating unit, and this device is paused turbine in circulation using the top Boulez of external-burning
The higher gas of temperature that machine is discharged pauses as bottom Boulez the thermal source of circulation, reclaims top circulatory turbine machine and discharges the remaining of gas
Heat, for bottoming cycle generate electricity, thus formed external-burning Boulez pause association circulating power generation system it is characterised in that：
Described top Boulez pause circulation refer to combustion air 10 through top circulation compressor 11 supercharging after, formed top circulation pressure
Contracting air 12, sends into heat exchanger 14, and the top cyclic high-temperature air 15 of formation is sent into top circulatory turbine machine 16, dragged top and follow
Ring electromotor 17 generates electricity, and the aerofluxuss 18 of top circulatory turbine machine 16, after high temperature regenerator 24 cooling, form Cryogenic air
19, Cryogenic air 19 is sent to combustor 32 after blower fan 31 supercharging, with fuel 13 mixed combustion, the high temperature cigarette of generation
Gas is discharged after heat exchanger 14 cooling, the closed circuit thus the top Boulez forming external-burning pauses；
Described bottom Boulez pause circulation refer to air 20 through bottoming cycle compressor 21 supercharging after, produce compressed air 22,
Reclaim the heat of the aerofluxuss 18 of top circulatory turbine machine 16, the high temperature air 27 of generation by high temperature regenerator 24, send into
Bottoming cycle turbine 28 drags bottoming cycle electromotor 29 and generates electricity, and the aerofluxuss 30 of bottoming cycle turbine 28 enter air, from
And form bottom Boulez and pause closed circuit；
Described top Boulez pauses circulation and bottom Boulez pauses cycles through high temperature regenerator 24 composition external-burning Boulez and pauses connection
Close circulation electric generating apparatus.
It is provided with cryogenic regenerator 23：Described top Boulez pause circulation refer to combustion air 10 through top circulation compressor 11 increase
After pressure, form top circulation compressed air 12, send into heat exchanger 14, the top cyclic high-temperature air 15 of formation sends into top circulation
Turbine 16, drag top circulating generator 17 generate electricity, top circulatory turbine machine 16 aerofluxuss 18 through high temperature regenerator 24,
After cryogenic regenerator 23 cooling, form Cryogenic air 19, Cryogenic air 19 is sent to combustor 32 after blower fan 31 supercharging,
With fuel 13 mixed combustion, high-temperature flue gas discharge after heat exchanger 14 cooling of generation, thus form the top of external-burning
Boulez pauses closed circuit；
Described bottom Boulez pause circulation refer to air 20 through bottoming cycle compressor 21 supercharging after, produce compressed air 22,
Reclaim the heat of the aerofluxuss 18 of top circulatory turbine machine 16, the height of generation by cryogenic regenerator 23, high temperature regenerator 24
Warm air 27, sends into bottoming cycle turbine 28 dragging bottoming cycle electromotor 29 and generates electricity, the aerofluxuss of bottoming cycle turbine 28
30 enter air, thus form bottom Boulez pausing closed circuit.
It is provided with air filter：Described air sends into compressor after air filter filtration.
Described fuel 13 adopts gaseous fuel, liquid fuel or solid fuel.
Described top circulation compressor 11, bottoming cycle compressor 21 adopt one stage of compression, or multi-stage compression, intercooling
Mode.
Described top circulation compressor 11, bottoming cycle compressor 21 adopt screw compressor, centrifugal compressor, work
Plug compressor, slide vane compressor or Axial Flow Compressor.
Described top circulation compressor 11, bottoming cycle compressor 21 can merge into same compressor, the compression after supercharging
Air is divided into two-way, i.e. top circulation compressed air 12, bottoming cycle compressed air 22, is sent to top circulation respectively, bottoming cycle is made
For cycle fluid.
Described top circulatory turbine machine 16, bottoming cycle turbine 28 can adopt the coaxial or different axle method of operation.
When described top circulatory turbine machine 16, bottoming cycle turbine 28 adopt coaxial manner, top circulating generator 17, bottom
Circulating generator 29 can merge into same electromotor.
Described high temperature regenerator 24 or cryogenic regenerator 23 include surface-type and regenerative two class.
Described heat exchanger 14 includes surface-type and regenerative two class.
Described surface-type regenerator includes but is not limited to shell-and-tube, board-like, plate-fin and original surface formula.
Described top circulatory turbine machine 16, bottoming cycle turbine 28 are scroll expansion machine, screw type expansion machine, centrifugation
Formula decompressor or piston expansion engine.
Described top Boulez pause circulation, bottom Boulez pause circulation turbine using identical or different admission pressure, adopt
With identical or different intake air temperature.
Described top Boulez pauses, and circulating pauses with bottom Boulez circulates optional different pressure, temperature composition external-burning Boulez
Pause association circulating power generation system, and such as top Boulez pauses circulation using low pressure, the method for operation of higher temperature, bottom Boulez
Circulation of pausing adopts high pressure, the method for operation of lower temperature.
Unaccounted equipment and its back-up system, pipeline, instrument, valve in the present invention, it is incubated, there is regulation work(
Bypass facility of energy etc. is carried out supporting using known mature technology.
It is provided with the safety supporting with present system, regulation device, carried out using existing ripe control technique supporting,
Enable external-burning Boulez pause economic, the safe efficient rate of combined cycle generating unit run, reach energy-saving mesh
's.
The present invention has the advantage that compared to existing technology：
1st, by increasing the air capacity that bottom Boulez pauses in circulation, can effectively reduce top Boulez and pause the delivery temperature of circulation,
Paused the pressure and temperature of circulation by adjusting bottom Boulez simultaneously, gas turbine expellant gas temperature can be made in bottoming cycle relatively
Low, the thermal efficiency of Combined Cycle Unit is higher, up to more than 42%；Give full play of external-burning Boulez to pause circulation simultaneously
The advantage of unit safety.
2nd, external-burning Boulez pauses Combined Cycle Unit runing adjustment flexibly and easily, need not be equipped with conventional gas-steam connection
Close the condenser in circulating generation unit, the public work water consumption of unit reduces significantly, and equipment is greatly
Simplify, deoxygenation demineralizer need not be set, be particularly suitable for water-deficient area.
3rd, the self-insurance ability of system is strong, during one of turbine in top Boulez pauses and bottom Boulez pauses off-the-line, remains to
By adjusting the method for operation it is ensured that unit safety operation, enhance safety operation elasticity and the motility of whole system, just
Rapid enforcement in safe emergency measure.
4th, bottoming cycle compressed air can adopt atm number, high pressure, the method for operation of lower temperature, is guaranteeing effectively to reduce
On the premise of top circulating exhaust temperature, bottoming cycle generatine set heat efficiency, effectively reduce equipment manufacturing cost.
5th, the top circulation in Combined Cycle Unit and bottoming cycle turbine can adopt sending out of coaxial manner, bottoming cycle and top circulation
Motor can merge into an electromotor so that equipment more simplify, compact.
Brief description
Fig. 1 is that a kind of external-burning Boulez of the present invention pauses combined cycle generating unit schematic flow sheet；
In Fig. 1：10- combustion air, 11- top circulation compressor, 12- top circulation compressed air, 13- fuel, 14- heat exchange
Device, 15- top cyclic high-temperature air, 16- top circulatory turbine machine, 17- top circulating generator, 18- aerofluxuss, 19- Cryogenic air,
20- air, 21- bottoming cycle compressor, 22- compressed air, 23- cryogenic regenerator, 24- high temperature regenerator, 27- high temperature
Air, 28- bottoming cycle turbine, 29- bottoming cycle electromotor, 30- aerofluxuss, 31- blower fan, 32- combustor, 33- flue gas.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment 1：
The combined cycle generating unit schematic flow sheet as shown in figure 1, a kind of external-burning Boulez of the present invention pauses.
A kind of external-burning Boulez pauses combined cycle generating unit, and this device is paused turbine in circulation using the top Boulez of external-burning
The higher air of temperature that machine is discharged pauses as bottom Boulez the thermal source of circulation, reclaims top circulatory turbine machine and discharges the remaining of gas
Heat, generates electricity for bottoming cycle, thus form external-burning Boulez pausing association circulating power generation system.
Described top Boulez pause circulation refer to combustion air 10 through top circulation compressor 11 supercharging after, formed top circulation pressure
Contracting air 12, sends into heat exchanger 14, and the top cyclic high-temperature air 15 of formation is sent into top circulatory turbine machine 16, dragged top and follow
Ring electromotor 17 generates electricity, and the aerofluxuss 18 of top circulatory turbine machine 16, after high temperature regenerator 24 cooling, form Cryogenic air
19, Cryogenic air 19 is sent to combustor 32 after blower fan 31 supercharging, with fuel 13 mixed combustion, the high temperature cigarette of generation
Gas is discharged after heat exchanger 14 cooling, the closed circuit thus the top Boulez forming external-burning pauses；
Described bottom Boulez pause circulation refer to air 20 through bottoming cycle compressor 21 supercharging after, produce compressed air 22,
Reclaim the heat of the aerofluxuss 18 of top circulatory turbine machine 16, the high temperature air 27 of generation by high temperature regenerator 24, send into
Bottoming cycle turbine 28 drags bottoming cycle electromotor 29 and generates electricity, and the aerofluxuss 30 of bottoming cycle turbine 28 enter air, from
And form bottom Boulez and pause closed circuit；
Described top Boulez pauses circulation and bottom Boulez pauses cycles through high temperature regenerator 24 composition external-burning Boulez and pauses connection
Close circulation electric generating apparatus.
It is provided with cryogenic regenerator 23：Described top Boulez pause circulation refer to combustion air 10 through top circulation compressor 11 increase
After pressure, form top circulation compressed air 12, send into heat exchanger 14, the top cyclic high-temperature air 15 of formation sends into top circulation
Turbine 16, drag top circulating generator 17 generate electricity, top circulatory turbine machine 16 aerofluxuss 18 through high temperature regenerator 24,
After cryogenic regenerator 23 cooling, form Cryogenic air 19, Cryogenic air 19 is sent to combustor 32 after blower fan 31 supercharging,
With fuel 13 mixed combustion, high-temperature flue gas discharge after heat exchanger 14 cooling of generation, thus form the top of external-burning
Boulez pauses closed circuit；
Described bottom Boulez pause circulation refer to air 20 through bottoming cycle compressor 21 supercharging after, produce compressed air 22,
Reclaim the heat of the aerofluxuss 18 of top circulatory turbine machine 16, the height of generation by cryogenic regenerator 23, high temperature regenerator 24
Warm air 27, sends into bottoming cycle turbine 28 dragging bottoming cycle electromotor 29 and generates electricity, the aerofluxuss of bottoming cycle turbine 28
30 enter air, thus form bottom Boulez pausing closed circuit.
It is provided with air filter：Described air sends into compressor after air filter filtration.
Described fuel 13 adopts natural gas.
Described top circulation compressor 11, bottoming cycle compressor 21 adopt multi-stage compression, intercooling mode；
Described top circulation compressor 11, bottoming cycle compressor 21 adopt screw compressor.
Described top circulatory turbine machine 16, bottoming cycle turbine 28 can adopt the coaxial or different axle method of operation.
When described top circulatory turbine machine 16, bottoming cycle turbine 28 adopt coaxial manner, top circulating generator 17, bottom
Circulating generator 29 can merge into same electromotor.
Described high temperature regenerator 24 or cryogenic regenerator 23 include surface-type regenerator.
Described heat exchanger 14 adopts surface-type heat exchanger.
Described surface-type regenerator includes but is not limited to shell-and-tube, board-like, plate-fin and original surface formula.
Described top circulatory turbine machine 16, bottoming cycle turbine 28 are scroll expansion machine.
Described top Boulez pause circulation, bottom Boulez pause circulation turbine using different admission pressures, different entering
Temperature degree.
Unaccounted equipment and its back-up system, pipeline, instrument, valve in the present invention, it is incubated, there is regulation work(
Bypass facility of energy etc. is carried out supporting using known mature technology.
It is provided with the safety supporting with present system, regulation device, carried out using existing ripe control technique supporting,
Enable superposition type Boulez pause economic, the safe efficient rate of association circulating power generation system run, reach energy-saving mesh
's.
Although the present invention is open as above with preferred embodiment, they are not for limiting the present invention, any are familiar with basis
Field technical professional, without departing from the spirit and scope of the invention, can make various simple modifications, equivalent variations,
Still fall within the protection domain of technical solution of the present invention.
Claims (1)
1. a kind of external-burning Boulez pauses combined cycle generating unit, this device is paused as bottom Boulez the thermal source of circulation by the use of the top Boulez higher air of temperature that turbine in circulation discharges that pauses of external-burning, reclaim the waste heat that gas discharged by top circulatory turbine machine, generate electricity for bottoming cycle, thus formed external-burning Boulez pause combined cycle generating unit it is characterised in that：
The circulation of pausing of described top Boulez refers to combustion air（10）Through top circulation compressor（11）After supercharging, form top circulation compressed air（12）, send into heat exchanger（14）, the top cyclic high-temperature air of formation（15）Send into top circulatory turbine machine（16）Drag top circulating generator（17）Generate electricity, push up circulatory turbine machine（16）Aerofluxuss（18）Through high temperature regenerator（24）After cooling, form Cryogenic air（19）, Cryogenic air（19）Through blower fan（31）It is sent to combustor after supercharging（32）, with fuel（13）Mixed combustion, the high-temperature flue gas of generation are through heat exchanger（14）Discharge after cooling, the closed circuit thus the top Boulez forming external-burning pauses；
The circulation of pausing of described bottom Boulez refers to air（20）Through bottoming cycle compressor（21）After supercharging, produce compressed air（22）, by high temperature regenerator（24）Reclaim top circulatory turbine machine（16）Aerofluxuss（18）Heat, the high temperature air of generation（27）, send into bottoming cycle turbine（28）Drag bottoming cycle electromotor（29）Generate electricity, bottoming cycle turbine（28）Aerofluxuss（30）Enter air, thus form bottom Boulez pausing closed circuit；
Described top Boulez pauses, and circulating pauses with bottom Boulez cycles through high temperature regenerator（24）Composition external-burning Boulez pauses combined cycle generating unit；
This device is provided with cryogenic regenerator（23）：
The circulation of pausing of described top Boulez refers to combustion air（10）Through top circulation compressor（11）After supercharging, form top circulation compressed air（12）, send into heat exchanger（14）, the top cyclic high-temperature air of formation（15）Send into top circulatory turbine machine（16）Drag top circulating generator（17）Generate electricity, push up circulatory turbine machine（16）Aerofluxuss（18）Through high temperature regenerator（24）, cryogenic regenerator（23）After cooling, form Cryogenic air（19）, Cryogenic air（19）Through blower fan（31）It is sent to combustor after supercharging（32）, with fuel（13）Mixed combustion, the high-temperature flue gas of generation are through heat exchanger（14）Discharge after cooling, the closed circuit thus the top Boulez forming external-burning pauses；
The circulation of pausing of described bottom Boulez refers to air（20）Through bottoming cycle compressor（21）After supercharging, produce compressed air（22）, by cryogenic regenerator（23）, high temperature regenerator（24）Reclaim top circulatory turbine machine（16）Aerofluxuss（18）Heat, the high temperature air of generation（27）, send into bottoming cycle turbine（28）Drag bottoming cycle electromotor（29）Generate electricity, bottoming cycle turbine（28）Aerofluxuss（30）Enter air, thus form bottom Boulez pausing closed circuit；
Described top circulatory turbine machine（16）, bottoming cycle turbine（28）Using the coaxial or different axle method of operation；
Described top circulating generator（17）, bottoming cycle electromotor（29）For same electromotor；
Pause the pause bottoming cycle turbine of circulation of top circulatory turbine machine, bottom Boulez of circulation of described top Boulez adopts identical or different admission pressure and identical or different intake air temperature；
Described top circulation compressor（11）, bottoming cycle compressor（21）Using one stage of compression, or multi-stage compression and intercooling mode；
Described top circulation compressor（11）, bottoming cycle compressor（21）Using screw compressor, centrifugal compressor, piston compressor, slide vane compressor or Axial Flow Compressor；
Described heat exchanger（14）Using surface-type heat exchanger or regenerative heat exchanger；
Described high temperature regenerator（24）, cryogenic regenerator（23）Using surface-type regenerator or regenerative regenerator；
Described fuel（13）Using gaseous fuel, liquid fuel or solid fuel；It is provided with air filter：Described air sends into bottoming cycle compressor after air filter filtration.
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| US5704209A (en) * | 1994-02-28 | 1998-01-06 | Ormat Industries Ltd | Externally fired combined cycle gas turbine system |
| JPH09138063A (en) * | 1995-11-14 | 1997-05-27 | Osaka Gas Co Ltd | Air separating method and air separating device utilizing liquefied natural gas cold heat |
| GB2470062A (en) * | 2009-05-08 | 2010-11-10 | Corac Group Plc | Production and Distribution of Natural Gas |
| US20110289941A1 (en) * | 2010-05-28 | 2011-12-01 | General Electric Company | Brayton cycle regasification of liquiefied natural gas |
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