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 PDF

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Publication number
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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flue
air
introduced machine
bypass
gas
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CN201710629936.4A
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CN107524527B (en
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张国强
李永毅
张恒
杨勇平
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North China Electric Power University
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North China Electric Power University
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    • 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
    • F02C9/00Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • F02C9/48Control of fuel supply conjointly with another control of the plant
    • F02C9/50Control of fuel supply conjointly with another control of the plant with control of working fluid flow
    • 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
    • F02C6/18Plural 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
    • 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
    • F02C9/00Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • F02C9/48Control of fuel supply conjointly with another control of the plant
    • F02C9/50Control of fuel supply conjointly with another control of the plant with control of working fluid flow
    • F02C9/52Control of fuel supply conjointly with another control of the plant with control of working fluid flow by bleeding or by-passing the working fluid
    • 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
    • F02C9/00Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
    • F02C9/48Control of fuel supply conjointly with another control of the plant
    • F02C9/50Control of fuel supply conjointly with another control of the plant with control of working fluid flow
    • F02C9/54Control of fuel supply conjointly with another control of the plant with control of working fluid flow by throttling the working fluid, by adjusting vanes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/16Combined 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

A kind of gas turbine available for circulating power station becomes back pressure modernization system
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.
CN201710629936.4A 2017-07-28 2017-07-28 Gas turbine variable back pressure transformation system applicable to combined cycle power station Active CN107524527B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0419307A (en) * 1990-05-14 1992-01-23 Babcock Hitachi Kk Compound power plant
DE4324972A1 (en) * 1993-07-24 1995-01-26 Erich Killinger Gas turbine/steam power system
CN101220959A (en) * 2007-12-28 2008-07-16 杭州锅炉集团股份有限公司 Smoke damper door
CN102900537A (en) * 2012-09-18 2013-01-30 常州市奥琳斯邦热能设备有限公司 Gas turbine waste heat recovery system
CN104266171A (en) * 2014-08-28 2015-01-07 国电龙源节能技术有限公司 Flue gas waste heat utilization system of thermal power plant
CN104930485A (en) * 2015-06-19 2015-09-23 上海优华系统集成技术股份有限公司 Flue gas waste heat recovery system and recovery method and application thereof
CN105020026A (en) * 2015-06-24 2015-11-04 北京源深节能技术有限责任公司 Fuel machine backpressure protection device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0419307A (en) * 1990-05-14 1992-01-23 Babcock Hitachi Kk Compound power plant
DE4324972A1 (en) * 1993-07-24 1995-01-26 Erich Killinger Gas turbine/steam power system
CN101220959A (en) * 2007-12-28 2008-07-16 杭州锅炉集团股份有限公司 Smoke damper door
CN102900537A (en) * 2012-09-18 2013-01-30 常州市奥琳斯邦热能设备有限公司 Gas turbine waste heat recovery system
CN104266171A (en) * 2014-08-28 2015-01-07 国电龙源节能技术有限公司 Flue gas waste heat utilization system of thermal power plant
CN104930485A (en) * 2015-06-19 2015-09-23 上海优华系统集成技术股份有限公司 Flue gas waste heat recovery system and recovery method and application thereof
CN105020026A (en) * 2015-06-24 2015-11-04 北京源深节能技术有限责任公司 Fuel machine backpressure protection device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN114635801B (en) * 2022-03-23 2023-11-21 合肥工业大学 Back pressure characteristic optimization method and device for gas generator

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