CN107524527A - A kind of gas turbine available for circulating power station becomes back pressure modernization system - Google Patents
A kind of gas turbine available for circulating power station becomes back pressure modernization system Download PDFInfo
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- CN107524527A CN107524527A CN201710629936.4A CN201710629936A CN107524527A CN 107524527 A CN107524527 A CN 107524527A CN 201710629936 A CN201710629936 A CN 201710629936A CN 107524527 A CN107524527 A CN 107524527A
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- 239000007789 gas Substances 0.000 claims abstract description 47
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000003546 flue gas Substances 0.000 claims abstract description 44
- 239000002918 waste heat Substances 0.000 claims abstract description 34
- 239000000567 combustion gas Substances 0.000 claims abstract description 21
- 238000002485 combustion reaction Methods 0.000 claims abstract description 11
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 230000001939 inductive effect Effects 0.000 claims abstract description 6
- 230000033228 biological regulation Effects 0.000 claims description 25
- 239000000446 fuel Substances 0.000 claims description 8
- 235000019504 cigarettes Nutrition 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 description 3
- 238000010977 unit operation Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/48—Control of fuel supply conjointly with another control of the plant
- F02C9/50—Control of fuel supply conjointly with another control of the plant with control of working fluid flow
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C6/18—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/48—Control of fuel supply conjointly with another control of the plant
- F02C9/50—Control of fuel supply conjointly with another control of the plant with control of working fluid flow
- F02C9/52—Control of fuel supply conjointly with another control of the plant with control of working fluid flow by bleeding or by-passing the working fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/48—Control of fuel supply conjointly with another control of the plant
- F02C9/50—Control of fuel supply conjointly with another control of the plant with control of working fluid flow
- F02C9/54—Control of fuel supply conjointly with another control of the plant with control of working fluid flow by throttling the working fluid, by adjusting vanes
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a kind of Gas Turbine Combined-cycle for belonging to power station energy-saving field to become back pressure modernization system.The system is mainly made up of the part such as compressor, combustion chamber, combustion gas turbine, waste heat boiler, air-introduced machine flue, air-introduced machine, air-introduced machine bypass flue, gas bypass baffle plate and chimney.Using being exported in exhaust-heat boiler flue gas, air-introduced machine flue and air-introduced machine bypass flue are set, gas bypass baffle plate is set at two flue separation, the arrangement of air-introduced machine is set in air-introduced machine flue, utilize the method for adjusting air inducing acc power, the gaseous-pressure in waste heat boiler flue is adjusted, and then changes the pressure at expulsion of combustion gas turbine；When bypass flue baffle plate is closed to air-introduced machine flue side, air-introduced machine flue is closed, waste heat boiler and combustion gas turbine outlet pressure can be recovered completely.Compared with typical combined cycle unit, under the same load, the air inlet of combustion gas turbine and exhaust gas temperature are improved, and top circulation and bottom circulating efficiency are necessarily optimized.Gas Turbine Combined-cycle, which becomes back pressure modernization system, can optimize performance driving economy of the combined cycle under partial load condition, significantly improve its peaking performance, remarkable in economical benefits.
Description
Technical field
The invention belongs to power station energy-saving field, more particularly to a kind of gas turbine available for circulating power station becomes back pressure
Modernization system.
Background technology
Gas turbine and its combined cycle are to be applied since the 1950s in power generation industries；Fuel gas-steam
Peak regulation of the Combined Cycle Unit due to participating in power network, usually runs in partial load condition, however as gas turbine load
Reduction, its thermal efficiency accordingly reduces, and therefore, further investigation combined cycle overall performance has for the heat-economy of unit
Important theory and realistic meaning.
Being applied to improve the method for combined cycle off-design efficiency at present mainly includes becoming geometry regulation, operation reserve regulation
And the class method of the system integration three；Becoming geometry regulation includes the regulation of compressor inlet stator（IGV）Regulation and turbine adjustable nozzle
（NGV）Regulation, mainly improves variable parameter operation performance by changing the through-current capacity of compressor and turbine；Optimize unit operation plan
Slightly regulation is the thermodynamic behaviour according to combined cycle, finds optimal combined cycle variable working condition regulative mode；Also with being
System is integrated also to improve combined cycle efficiency, such as extraction cycle, make use of the high-temperature exhaust air of turbine to heat compressor inlet
Air, improve it enter combustion chamber temperature, reduce input combustion chamber fuel, so as to improve the thermal efficiency.
More high parameter grade（High initial temperature, high pressure ratio）Gas turbine unit there is more preferable off design performance；Therefore, exist
In the range of unit variable parameter operation, combustion gas initial temperature as high as possible is advantageous to improve combined cycle efficiency；Gas turbine machine at present
Group is all provided with IGV systems, is at present using than wide and relatively good effect variable working condition regulation side using IGV regulations
Formula；I.e. by gradually turning down IGV angle, compressor inlet flow is reduced to reduce gas turbine load, can so improve turbine
The fuel gas temperature of import is to improve off-design efficiency；But unit can not adjust load all the time by IGV angle is turned down, because
When gas turbine is by operation of T3 regulative modes is waited, unit drops to certain load, if continuing to turn down IGV angle, combustion gas stream
Amount further reduces, and the expansion ratio of turbine final stage reduces, and can so cause turbine exhaust overtemperature.
The present invention proposes a kind of gas turbine available for circulating power station and becomes back pressure modernization system, suitable for combustion gas
Turbine circulating power station, its core design thought are：By arranging air-introduced machine in waste heat boiler back-end ductwork to adjust machine
Turbine exhaust back pressure of the group in variable parameter operation, improve the expansion ratio of turbine final stage so that high-temperature fuel gas can further exist
Expansion work in turbine, add gas turbine and go out work(, optimize top cycle performance；Improve exhaust-heat boiler inlet cigarette simultaneously
Temperature, be advantageous to optimize bottoming cycle performance；Putting into operation and exiting in order to facilitate air-introduced machine, there is provided in parallel with air-introduced machine flue to draw
Blower fan bypass flue, and bypass flue baffle plate is provided with flue separation, when air-introduced machine puts into operation, air-introduced machine bypass flue closes
Close, flue gas fully enters air-introduced machine flue, and when air-introduced machine is stopped transport, air-introduced machine flue is closed, and flue gas is fully entered by air-introduced machine
Road flue, whether can so be put into operation, reduced when air-introduced machine does not put into operation when the flue gas resistance loss brought with flexible modulation air-introduced machine.
This Gas Turbine Combined-cycle, which becomes back pressure modernization system, can expand the load variations scope of the T3 regulation strategies such as unit use,
The economy of the variable parameter operation of unit is improved, has obvious effect to power station energy-conservation and peaking performance.
The content of the invention
The present invention for the Gas Turbine Combined-cycle variable working condition thermal efficiency it is relatively low, unit using etc. T3 regulation it is tactful when not
The problems such as IGV can be made full use of to adjust compressor air inlet machine amount, the one kind for proposing to belong to power station energy-saving field can be used for combined cycle
The gas turbine in power station becomes back pressure modernization system, by arranging that air-introduced machine is being exchanged work to adjust unit in waste heat boiler back-end ductwork
Turbine exhaust back pressure when condition is run, expand unit by the range of operation for waiting T3 regulations, improve the combined cycle thermal efficiency, set simultaneously
Put the air-introduced machine bypass flue flexible modulation air-introduced machine in parallel with air-introduced machine flue to put into operation and exhaust gases passes when not putting into operation, reduce
The drag losses of flue.
To reach above-mentioned purpose, present invention employs following technical scheme：
A kind of gas turbine available for circulating power station becomes back pressure modernization system, and the system mainly includes compressor, burning
Room, combustion gas turbine, waste heat boiler, air-introduced machine flue, air-introduced machine, air-introduced machine bypass flue, gas bypass baffle plate and chimney etc.
Device；It is characterized in that：Air passes through compressor（1）Enter combustion chamber after compression（2）, flue gas of the fuel after combustion chambers burn
Into combustion gas turbine（3）, high-temperature flue gas expanded in turbine workmanship after be passed through waste heat boiler（4）, heat boiler outlet flue gas leads to
Road is respectively set to air-introduced machine flue parallel with one another（6）With air-introduced machine bypass flue（10）, bypass is set at flue separation
Damper（9）, bypass flue baffle plate（9）It can open to air-introduced machine flue（6）Position（11）Place and air-introduced machine bypass flue
（10）Position（12）Place, in air-introduced machine flue（6）Middle setting air-introduced machine（7）, in air-introduced machine flue（6）Cigarette is bypassed with air-introduced machine
Road（10）Set afterwards and converge flue（13）, converge flue（13）Connect chimney（8）.
The described exhanst gas outlet flue in waste heat boiler sets air-introduced machine flue（6）, in air-introduced machine flue（6）Middle setting
Air-introduced machine（7）；The flue gas of heat boiler outlet enters air-introduced machine flue（6）, flue gas flows through air-introduced machine flue（6）In air-introduced machine
（7）, in air-introduced machine（7）In be pressurized, pressure rise is to suitable with environmental pressure, by converging flue（13）Into chimney（8）
It is discharged into air；Utilize air-introduced machine（7）Suction force effect reduce waste heat boiler（4）And combustion gas turbine（3）Outlet（14）Place
Gaseous-pressure.
The described exhanst gas outlet flue in waste heat boiler sets air-introduced machine bypass flue（10）, when the air-introduced machine that do not put into operation
（7）When, flue gas enters air-introduced machine bypass flue（10）, flue gas pressures do not change, subsequently enter and converge flue（13）, finally
By chimney（8）It is discharged into air；Air-introduced machine bypass flue is set（10）Afterwards can flexible modulation air-introduced machine（7）Whether put into operation.
It is described in waste heat boiler（4）Air-introduced machine flue afterwards（6）With air-introduced machine bypass flue（10）Separation at set
Put bypass flue baffle plate（9）, when needing air-introduced machine（7）When putting into operation, bypass flue baffle plate（9）Adjust to air-introduced machine bypass flue
（10）Position（12）Place, waste heat boiler（4）The flue gas of outlet enters air-introduced machine flue（6）, by air-introduced machine（7）That pressurizes is laggard
Enter to converge flue（13）, then by chimney（8）Discharge；When not needing air-introduced machine（7）When putting into operation, bypass flue baffle plate（9）Regulation to
Air-introduced machine flue（6）Position（11）Place, waste heat boiler（4）The flue gas of outlet enters air-introduced machine bypass flue（10）, with laggard
Enter to converge flue（13）, then by chimney（8）Discharge；In regulation air-introduced machine（7）When whether putting into operation, bypass flue baffle plate can be passed through
（9）Flexible modulation exhaust gases passes, avoid air-introduced machine（7）Do not put into operation is to cause drag losses to flue gas.
Gas turbine of the present invention available for circulating power station, which becomes back pressure modernization system, has following features：
1. Combined-cycle Gas Turbine Unit in variable working condition using etc. T3+ compressors IGV regulation operation reserve, born in unit
Lotus using IGV adjustment control compressor air inlet machine amounts, while adjusts fuel quantity, maintains turbine entrance combustion gas temperature from during 100% decline
Degree（T3）Constant, air-introduced machine does not put into operation, bypass flue baffle plate open to（11）Position, closes air-introduced machine flue, and flue gas passes through air inducing
Machine bypass flue is discharged, and air-introduced machine, bypass flue baffle plate are opened when rising to limits value with load reduction turbine exhaust temperature
Open to（12）Position, opens air-introduced machine flue, and flue gas is changed by being discharged after air-introduced machine pressurization by power of fan regulation
Combustion gas turbine exhaust back pressure, the combustion gas of high temperature can further expand in turbine, reduce delivery temperature so that unit is saturating
Flat initial temperature remains to keep turbine exhaust temperature within safe range in the case of not becoming；It is other when IGV angle is closed to minimum value
Road damper open to（11）Position, air-introduced machine bypass flue is opened, close air-introduced machine, flue gas is arranged by air-introduced machine bypass flue
Go out, adjusted using fuel quantity, compressor inlet flow is no longer reduced, and fuel quantity is constantly reduced to reduce load；Take full advantage of
IGV adjusts compressor air inlet machine amount and expands the load range for waiting T3 regulations, optimizes under variable working condition top circulation and bottoming cycle
Runnability, improve unit variable parameter operation economy.
2. reducing turbine back pressure using air-introduced machine, expansion process of the flue gas in turbine is expanded, is able to maintain that turbine enters
Mouth cigarette temperature maintains 1327 DEG C of design load, and ensures turbine exhaust not overtemperature, compared to conventional rack, the flue gas utilization of turbine
Warm area being expanded and being lifted, and efficiency of turbine is increased dramatically, while turbine exhaust temperature accordingly improves, and maintains 650
DEG C or so, be advantageous to the lifting of waste heat boiler efficiency, have larger castering action for the performance driving economy of unit.
3. the energy saving of system effect depends on the adjustable range of compressor flow, adjustable range is bigger, and energy-saving effect is more aobvious
Write, therefore, become back pressure transformation under different operating schemes, different rotating speeds regulation, different system Integrated Solution still with same
Thermodynamic property, in particular for the strategy or integrated system that can bring changes in flow rate.
4. the system can change the circulation path of flue gas by the flexible adjustment of baffle plate, avoid what is do not put into operation in air-introduced machine
In the case of, the air-introduced machine flue that flue gas continues to flow through causes excessive flue gas pressures to lose, and influences unit economy.
5. the system can facilitate air-introduced machine to repair, when air-introduced machine needs to safeguard, bypass flue flapper closure air inducing is utilized
Machine flue, air-introduced machine can be deployed to safeguard in the case where not influenceing unit operation.
Brief description of the drawings
Fig. 1 is that Gas Turbine Combined-cycle becomes back pressure modernization system schematic diagram.In figure：1- compressors；2- combustion chambers；3- fires
Gas turbine；4- waste heat boilers；5- generators；6- air-introduced machine flues；7- air-introduced machines；8- chimneys；9- bypass flue baffle plates；10- draws
Blower fan bypass flue；11-；12-；13- converges flue.
Embodiment
The present invention proposes that a kind of Gas Turbine Combined-cycle becomes back pressure modernization system.Said below in conjunction with the accompanying drawings with example
It is bright.
Gas turbine as shown in Figure 1 becomes in back pressure modernization system schematic diagram, and the system mainly includes compressor, burning
Room, combustion gas turbine, waste heat boiler, air-introduced machine flue, air-introduced machine, air-introduced machine bypass flue, gas bypass baffle plate and chimney etc.
Device；It is characterized in that：Air passes through compressor（1）Enter combustion chamber after compression（2）, flue gas of the fuel after combustion chambers burn
Into combustion gas turbine（3）, high-temperature flue gas expanded in turbine workmanship after be passed through waste heat boiler（4）, heat boiler outlet flue gas leads to
Road is respectively set to air-introduced machine flue parallel with one another（6）With air-introduced machine bypass flue（10）, bypass is set at flue separation
Damper（9）, bypass flue baffle plate（9）It can open to air-introduced machine flue（6）Position（11）Place and air-introduced machine bypass flue
（10）Position（12）Place, in air-introduced machine flue（6）Middle setting air-introduced machine（7）, in air-introduced machine flue（6）Cigarette is bypassed with air-introduced machine
Road（10）Set afterwards and converge flue（13）, converge flue（13）Connect chimney（8）.
As shown in figure 1, the exhanst gas outlet flue in waste heat boiler sets air-introduced machine flue（6）, in air-introduced machine flue（6）In
Air-introduced machine is set（7）；The flue gas of heat boiler outlet enters air-introduced machine flue（6）, flue gas flows through air-introduced machine flue（6）In draw
Blower fan（7）, in air-introduced machine（7）In be pressurized, pressure rise is to suitable with environmental pressure, by converging flue（13）Into chimney
（8）It is discharged into air.Utilize air-introduced machine（7）Suction force effect reduce waste heat boiler（4）And combustion gas turbine（3）Outlet（14）
The gaseous-pressure at place.
As shown in figure 1, the exhanst gas outlet flue in waste heat boiler sets air-introduced machine bypass flue（10）, when the air inducing that do not put into operation
Machine（7）When, flue gas enters air-introduced machine bypass flue（10）, flue gas pressures do not change, subsequently enter and converge flue（13）, most
Eventually by chimney（8）It is discharged into air；Air-introduced machine bypass flue is set（10）Afterwards can flexible modulation air-introduced machine（7）Whether put into operation.
As shown in figure 1, in waste heat boiler（4）Air-introduced machine flue afterwards（6）With air-introduced machine bypass flue（10）Separation
Place sets bypass flue baffle plate（9）, when needing air-introduced machine（7）When putting into operation, bypass flue baffle plate（9）Regulation to air-introduced machine bypasses cigarette
Road（10）Position（12）Place, waste heat boiler（4）The flue gas of outlet enters air-introduced machine flue（6）, by air-introduced machine（7）After pressurization
Into converging flue（13）, then by chimney（8）Discharge；When not needing air-introduced machine（7）When putting into operation, bypass flue baffle plate（9）Regulation
To air-introduced machine flue（6）Position（11）Place, waste heat boiler（4）The flue gas of outlet enters air-introduced machine bypass flue（10）, then
Into converging flue（13）, then by chimney（8）Discharge.In regulation air-introduced machine（7）When whether putting into operation, bypass flue baffle plate can be passed through
（9）Flexible modulation exhaust gases passes, avoid air-introduced machine（7）Do not put into operation is to cause drag losses to flue gas.
Present invention firstly provides Gas Turbine Combined-cycle to become back pressure modernization system；When unit is in T3+ such as variable working condition uses
During the operation reserve operation of compressor IGV regulations, air inducing is opened when rising to limits value with load reduction turbine exhaust temperature
Machine, turbine back pressure is reduced using air-introduced machine, expansion process of the flue gas in turbine is expanded, is able to maintain that turbine inlet flue gas temperature exists
Design conditions value, and ensure turbine exhaust not overtemperature, compared to conventional rack, the flue gas utilization warm area of turbine is expanded
And lifting, efficiency of turbine are increased dramatically, while turbine exhaust temperature accordingly improves, and is advantageous to carrying for waste heat boiler efficiency
Rise, have larger castering action for the performance driving economy of unit；Meanwhile the system can be by baffle plate to flue gas circulation path
Regulation ensure the economy of unit operation, and pass through start or stop of the bypass flue baffle plate to air-introduced machine flue and ensure air-introduced machine
The convenience of maintenance.
Claims (5)
1. the invention discloses a kind of gas turbine available for circulating power station to become back pressure modernization system；The system is mainly wrapped
Include compressor, combustion chamber, combustion gas turbine, waste heat boiler, air-introduced machine flue, air-introduced machine, air-introduced machine bypass flue, gas bypass gear
The device such as plate and chimney；It is characterized in that：Air passes through compressor（1）Enter combustion chamber after compression（2）, fuel is in combustion chamber
Flue gas after burning enters combustion gas turbine（3）, high-temperature flue gas expanded in turbine workmanship after be passed through waste heat boiler（4）, waste heat pot
Outlet of still exhaust gases passes are respectively set to air-introduced machine flue parallel with one another（6）With air-introduced machine bypass flue（10）, in flue point
From place, bypass flue baffle plate is set（9）, bypass flue baffle plate（9）It can open to air-introduced machine flue（6）Position（11）Place and air inducing
Machine bypass flue（10）Position（12）Place, in air-introduced machine flue（6）Middle setting air-introduced machine（7）, in air-introduced machine flue（6）With draw
Blower fan bypass flue（10）Set afterwards and converge flue（13）, converge flue（13）Connect chimney（8）.
2. a kind of gas turbine available for circulating power station according to claim 1 becomes back pressure modernization system, it is special
Sign is, air-introduced machine flue is set in the exhanst gas outlet flue of waste heat boiler（6）, in air-introduced machine flue（6）Middle setting air-introduced machine
（7）；The flue gas of heat boiler outlet enters air-introduced machine flue（6）, flue gas flows through air-introduced machine flue（6）In air-introduced machine（7）,
Air-introduced machine（7）In be pressurized, pressure rise is to suitable with environmental pressure, by converging flue（13）Into chimney（8）It is discharged into big
Gas；Utilize air-introduced machine（7）Suction force effect reduce waste heat boiler（4）And combustion gas turbine（3）Outlet（14）The combustion gas at place
Pressure.
3. a kind of gas turbine available for circulating power station according to claim 1 becomes back pressure modernization system, it is special
Sign is, air-introduced machine bypass flue is set in the exhanst gas outlet flue of waste heat boiler（10）, when the air-introduced machine that do not put into operation（7）When, cigarette
Gas enters air-introduced machine bypass flue（10）, flue gas pressures do not change, subsequently enter and converge flue（13）, finally by chimney
（8）It is discharged into air；Air-introduced machine bypass flue is set（10）Afterwards can flexible modulation air-introduced machine（7）Whether put into operation.
4. a kind of gas turbine available for circulating power station according to claim 1 becomes back pressure modernization system, it is special
Sign is, in waste heat boiler（4）Air-introduced machine flue afterwards（6）With air-introduced machine bypass flue（10）Separation at set bypass cigarette
Road baffle plate（9）, when needing air-introduced machine（7）When putting into operation, bypass flue baffle plate（9）Adjust to air-introduced machine bypass flue（10）Position
（12）Place, waste heat boiler（4）The flue gas of outlet enters air-introduced machine flue（6）, by air-introduced machine（7）Enter after pressurization and converge flue
（13）, then by chimney（8）Discharge；When not needing air-introduced machine（7）When putting into operation, bypass flue baffle plate（9）Adjust to air-introduced machine flue
（6）Position（11）Place, waste heat boiler（4）The flue gas of outlet enters air-introduced machine bypass flue（10）, subsequently enter and converge flue
（13）, then by chimney（8）Discharge；In regulation air-introduced machine（7）When whether putting into operation, bypass flue baffle plate can be passed through（9）Flexible modulation
Exhaust gases passes, avoid air-introduced machine（7）Do not put into operation is to cause drag losses to flue gas.
5. a kind of gas turbine available for circulating power station according to claim 1 becomes back pressure modernization system, it is special
Sign is, can be by adjusting air-introduced machine flue（6）In air-introduced machine（7）Power flexible modulation waste heat boiler（4）It is saturating with combustion gas
It is flat（3）Outlet（14）The gaseous-pressure at place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710629936.4A CN107524527B (en) | 2017-07-28 | 2017-07-28 | Gas turbine variable back pressure transformation system applicable to combined cycle power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710629936.4A CN107524527B (en) | 2017-07-28 | 2017-07-28 | Gas turbine variable back pressure transformation system applicable to combined cycle power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107524527A true CN107524527A (en) | 2017-12-29 |
| CN107524527B CN107524527B (en) | 2024-04-26 |
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ID=60680382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201710629936.4A Active CN107524527B (en) | 2017-07-28 | 2017-07-28 | Gas turbine variable back pressure transformation system applicable to combined cycle power station |
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| CN112516747A (en) * | 2020-12-21 | 2021-03-19 | 重庆科技学院 | Combined type natural gas compressor waste gas treatment device |
| CN114635801A (en) * | 2022-03-23 | 2022-06-17 | 合肥工业大学 | Method and device for optimizing backpressure characteristic of gas generator |
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| CN107524527B (en) | 2024-04-26 |
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