CN109958535A - A kind of system for waste incineration and combustion turbine combined power generation - Google Patents
A kind of system for waste incineration and combustion turbine combined power generation Download PDFInfo
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- CN109958535A CN109958535A CN201910247079.0A CN201910247079A CN109958535A CN 109958535 A CN109958535 A CN 109958535A CN 201910247079 A CN201910247079 A CN 201910247079A CN 109958535 A CN109958535 A CN 109958535A
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- waste
- incineration
- heat boiler
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- 238000004056 waste incineration Methods 0.000 title claims abstract description 34
- 238000010248 power generation Methods 0.000 title claims abstract description 29
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 13
- 239000002918 waste heat Substances 0.000 claims abstract description 102
- 239000007789 gas Substances 0.000 claims abstract description 69
- 239000002912 waste gas Substances 0.000 claims abstract description 46
- 230000003134 recirculating effect Effects 0.000 claims abstract description 19
- 239000000779 smoke Substances 0.000 claims abstract description 16
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 39
- 239000003546 flue gas Substances 0.000 claims description 39
- 239000003517 fume Substances 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000013021 overheating Methods 0.000 abstract description 5
- 239000010813 municipal solid waste Substances 0.000 description 11
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 229910001868 water Inorganic materials 0.000 description 6
- 239000000567 combustion gas Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- -1 water-cooling wall Chemical compound 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/02—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/50—Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
-
- 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
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The present invention relates to a kind of systems for waste incineration and combustion turbine combined power generation, it is simultaneously waste incineration and gas turbine combined power generation system of the vapour device before gas-turbine waste heat boiler finishing superheater, comprising: 1) refuse burning system: be made of grate type incinerator and waste gas of incineration boiler；2) gas turbine and gas-turbine waste heat boiler；3) waste gas of incineration boiler overheating steam and gas-turbine waste heat boiler superheated steam and vapour system: by the steam pipework and vapour device outside the outlet of waste gas of incineration boiler superheater and the simultaneously pipeline between vapour device and gas-turbine waste heat boiler superheater；4) turbine generator system: including steam turbine, generator；5) gas-turbine waste heat boiler smoke evacuation is recycled to incinerator system: being made of gas recirculating fan and associated conduit；6) ancillary equipment: the ancillary equipments such as condenser, oxygen-eliminating device for being needed in system and necessary feed pump, condensate pump, valve etc..
Description
Technical field
It is a kind of by combustion gas the present invention relates to a kind of system being combined for waste incineration and generating electricity and gas turbine power generation
Turbine and the coupling of the energy system of waste incineration, gas-turbine waste heat boiler and refuse incineration exhaust-heating boiler share a set of steamer and send out
The system of motor group and a kind of gas-turbine waste heat boiler is discharged fume as incinerator waste heat boiler flue gas recycled are
System.
Background technique
Waste incineration has become one of the main path of China's domestic rubbish disposal, at present the day waste incineration amount in China
About 400,000 tons, and waste incineration industry development is rapid, the quantity of garbage burning factory is in rapid increase, it is contemplated that before and after 2022
Day waste incineration amount will be more than 800,000 tons.
The thermal energy that waste incineration generation is utilized in most of garbage burning factory at present carries out power generation, the receipts of incineration plant
Enter in source power generation income and account for relatively high, when carrying out power generation, using efficient electricity generation system, not only improves the height of energy
Effect utilizes, and is conducive to improve the income of garbage disposal, thus becomes one of the direction of China's waste incineration and generating electricity field development.
Compared with coal and biomass, chlorine, alkali metal element equal size are more in house refuse, and the flue gas for burning generation carries
Flying dust in it is more containing the substances such as sodium chloride, potassium chloride, the corrosivity of flue gas is stronger, is easy to gold such as water-cooling wall, superheaters
Belong to heat-transfer surface and generate corrosion, especially to the higher superheater of tube wall temperature, thus the steam parameter traditionally used is 4Mpa/
400 DEG C, and by the temperature of superheater import flue gas control at 610 DEG C hereinafter, when to steam use higher pressure and temperature when,
Temperature of Working increases in superheater, and superheater tube wall temperature increases, and the heat absorption ratio of steam superheating section increases, the energy in flue gas
The distribution for measuring super cooled sect, saturation section and superheat section into water supply heating engineering will also change, and need under same burning condition
Superheater is arranged to higher temperature range, thus superheater can be made to face bigger corrosion risk, to limit
The use of high parameter by skill upgrading and improves, and the steam parameter of refuse incineration exhaust-heating boiler is raised to 6.4Mpa/450
DEG C or so, while being influenced by quantity of refuse and calorific value, the turbine generator system power of garbage burning factory is all smaller, overall to imitate
Rate is lower；Meanwhile incinerator be often used flue gas recirculating technique control nitrogen oxides, i.e., using the flue gas after bag filter as
Circulating flue gas returns in furnace, partially carries out temperature adjusting instead of Secondary Air and reduces the generation of nitrogen oxides, but bag filter
Incineration flue gas afterwards is containing certain density HCl, SO2The wet flue gas of equal sour gas and dust, to gas recirculating fan
And the corrosion and larger, the high frequency of replacement of abrasion of associated conduit.
Existing gas turbine uses Gas-steam Combined Cycle mode, is equipped with and is used for refuse incineration exhaust-heating boiler steam
Merge with gas-turbine waste heat boiler steam and vapour device；Smoke evacuation of the gas turbine to gas-turbine waste heat boiler is used to give birth to
Producing steam simultaneously generates electricity in turbine generator system, and flue gas is with CH4Based on combustion of natural gas product based on, predominantly nitrogen,
Water and carbon dioxide, it is substantially non-corrosive to metal in high temperature section, thus the superheated steam that gas-turbine waste heat boiler generates
It can achieve higher parameter, be thus expected to that waste incineration and gas turbine is made to use a set of Turbo-generator Set, simultaneously rubbish
Rubbish waste gas of incineration boiler does flue gas recycled using the smoke evacuation of gas-turbine waste heat boiler.
Summary of the invention
The purpose of the present invention is overcoming above-mentioned the deficiencies in the prior art, provide a kind of for waste incineration and generating electricity and combustion gas wheel
Machine generates electricity the system that is combined, is that a kind of gas-turbine waste heat boiler and refuse incineration exhaust-heating boiler share a set of steam turbine generator
The system of group and a kind of system that gas-turbine waste heat boiler is discharged fume as incinerator waste heat boiler flue gas recycled.
The specific technical solution of the present invention is: a kind of association system for waste incineration and gas turbine power generation, is simultaneously
Waste incineration and gas turbine combined power generation system of the vapour device before gas-turbine waste heat boiler finishing superheater, comprising: 1)
Refuse burning system: it is made of grate type incinerator and waste gas of incineration boiler；2) gas turbine and gas-turbine waste heat boiler；3)
Waste gas of incineration boiler overheating steam and gas-turbine waste heat boiler superheated steam and vapour system: gone out by waste gas of incineration boiler superheater
Steam pipework and vapour device and the simultaneously pipeline between vapour device and gas-turbine waste heat boiler superheater outside mouthful；4) steamer is sent out
Electric system: including steam turbine, generator；5) gas-turbine waste heat boiler smoke evacuation is recycled to incinerator system: by flue gas recirculation
Blower and associated conduit composition；6) ancillary equipment: the ancillary equipments such as condenser, oxygen-eliminating device for being needed in system and necessary water supply
Pump, condensate pump, valve etc.；
The exhanst gas outlet of the grate type incinerator 1 connects waste gas of incineration boiler 2, and 2 steam side of waste gas of incineration boiler passes through
Pipeline is connected with simultaneously steam pipe 5, and the exhanst gas outlet of gas turbine 3 connects gas-turbine waste heat boiler 4；Gas-turbine waste heat boiler 4
Primary superheater and finishing superheater by and steam pipe 5 connect, the same steam turbine of the finishing superheater of gas-turbine waste heat boiler 4
6 connections, 6 main shaft of steam turbine are connect by shaft coupling with generator 7, and 7 steam side of steam turbine is connect with condenser 9, later successively
For low-pressure heater 10, oxygen-eliminating device 11, feed pump 12, the outlet of feed pump 12 simultaneously with the economizer 13 of waste gas of incineration boiler 2 and
Gas-turbine waste heat boiler 4 connects, and the fume side of gas-turbine waste heat boiler 4 is burnt by gas recirculating fan 8 with grate-type
Burn the fume side connection of furnace 1.
The present invention also provides a kind of association system for waste incineration and gas turbine power generation, it is and vapour device is firing
Waste incineration and gas turbine combined power generation system after gas-turbine waste heat boiler finishing superheater, comprising: 1) waste incineration system
System: it is made of grate type incinerator and waste gas of incineration boiler；2) gas turbine and gas-turbine waste heat boiler；3) waste gas of incineration pot
Furnace superheated steam and gas-turbine waste heat boiler superheated steam and vapour system: by the steam outside the outlet of waste gas of incineration boiler superheater
Pipeline and vapour device and the simultaneously pipeline between vapour device and gas-turbine waste heat boiler superheater；4) turbine generator system: packet
Include steam turbine, generator；5) gas-turbine waste heat boiler smoke evacuation is recycled to incinerator system: by gas recirculating fan and correlation
Pipeline composition；6) ancillary equipment: the ancillary equipments such as condenser, oxygen-eliminating device for being needed in system and necessary feed pump, condensed water
Pump, valve etc.；
The exhanst gas outlet of the grate type incinerator 1 connects waste gas of incineration boiler 2, and 2 steam side of waste gas of incineration boiler passes through
Pipeline is connected with simultaneously steam pipe 5, and the exhanst gas outlet of gas turbine 3 connects gas-turbine waste heat boiler 4；Gas-turbine waste heat boiler 4
Finishing superheater with and steam pipe 5 connect, and steam pipe 5 is connected with steam turbine 6, and 6 main shaft of steam turbine passes through shaft coupling and generator 7
Connection, 7 steam side of steam turbine are connect with condenser 9, are followed successively by low-pressure heater 10, oxygen-eliminating device 11, feed pump 12, water supply later
12 outlet of pump is connect with the economizer 13 of waste gas of incineration boiler 2 and gas-turbine waste heat boiler 4 simultaneously, gas-turbine waste heat boiler
4 fume side is connected by gas recirculating fan 8 with the fume side of grate type incinerator 1.
Technical effect:
Waste incineration of the present invention and gas turbine combined power generation system, advantage are as follows: 1) waste gas of incineration Boiler Steam
Temperature may be provided at the heated surface corrosion situation no more than 450 DEG C, in incinerator and be effectively controlled；2) by gas turbine and rubbish
The energy system coupling that rubbish burns, waste gas of incineration boiler overheating steam merges with gas-turbine waste heat boiler superheated steam uses one
Cover the public ancillary equipment such as turbine generator system and condenser, oxygen-eliminating device, using scale effect, the specific investment cost of power generation at
This reduction, generating efficiency is also improved when the capacity of unit increases, especially suitable for distributed energy resource system；It 3) can be by combustion gas
The steam that the exhaust gas temperature of turbine designs in 600 DEG C or so, the steam and gas turbine waste heat boiler of waste gas of incineration boiler can
First and vapour system and vapour, enter back into later with gas-turbine waste heat boiler finishing superheater, be heated to 560 DEG C or so, it is right
The steam pressure answered can reach 13.6Mpa, and the generating efficiency of system entirety further gets a promotion；4) gas turbine waste heat is used
The smoke evacuation of boiler, the source of flue gas is, it can be achieved that flue gas recirculation problem adjusts and drop when using flue gas recirculation as incinerator
The effect of low NOx, is effectively reduced the etching problem of gas recirculating fan and associated conduit, and the smoke evacuation is utilized
Waste heat.
Detailed description of the invention
Fig. 1 and waste incineration of the vapour device before gas-turbine waste heat boiler finishing superheater and combustion turbine combined power generation
System schematic.
Fig. 2 and waste incineration of the vapour device after gas-turbine waste heat boiler finishing superheater and combustion turbine combined power generation
System schematic.
In fig. 1 and 2: 1. grate type incinerators；2. waste gas of incineration boiler；3. gas turbine；4. gas turbine waste heat
Boiler；5. and steam pipe；6. steam turbine；7. generator；8. gas recirculating fan；9. condenser；10. low-pressure heater；11. removing
Oxygen device；12. feed pump；13. economizer.
Specific embodiment
A kind of waste incineration described in the invention and gas turbine combined power generation system, in conjunction with attached drawing, to specific implementation
Mode is described in further detail.The present embodiment is implemented under the premise of the technical scheme of the present invention, gives detailed
Embodiment and specific operating process, but protection scope of the present invention is not limited to following embodiments.
The present invention is a kind of implementation of system for waste incineration and combustion turbine combined power generation, is a kind of gas turbine
Waste heat boiler and refuse incineration exhaust-heating boiler share the system of a set of Turbo-generator Set and a kind of by gas turbine waste heat pot
System of the fire grate cigarette as incinerator waste heat boiler flue gas recycled.
Embodiment 1
As shown in Figure 1, being simultaneously waste incineration of the vapour device before gas-turbine waste heat boiler finishing superheater and combustion gas wheel
Machine combined generating system schematic diagram.
Whole system main composition includes: 1) refuse burning system: by grate type incinerator 1 and 2 groups of waste gas of incineration boiler
At wherein waste gas of incineration boiler further includes economizer 13；2) gas turbine 3 and gas-turbine waste heat boiler 4；3) waste gas of incineration pot
Furnace superheated steam and gas-turbine waste heat boiler superheated steam and vapour system: mainly by simultaneously steam pipe 5 and waste gas of incineration boiler overheating
Jet chimney outside device outlet, the jet chimney composition outside gas-turbine waste heat boiler superheater outlet；4) turbine generator system:
Including steam turbine 6, generator 7；5) gas-turbine waste heat boiler smoke evacuation is recycled to incinerator system: by gas recirculating fan 8
And associated conduit composition；6) ancillary equipment: the ancillary equipments such as condenser 9, low-pressure heater 10, oxygen-eliminating device 11 for being needed in system
And necessary feed pump 12, condensate pump, valve etc..
The exhanst gas outlet of the grate type incinerator 1 connects waste gas of incineration boiler 2, and 2 steam side of waste gas of incineration boiler passes through
Pipeline is connected with simultaneously steam pipe 5, and the exhanst gas outlet of gas turbine 3 connects gas-turbine waste heat boiler 4；Gas-turbine waste heat boiler 4
Primary superheater and finishing superheater by and steam pipe 5 connect, the same steam turbine of the finishing superheater of gas-turbine waste heat boiler 4
6 connections, 6 main shaft of steam turbine are connect by shaft coupling with generator 7, and 7 steam side of steam turbine is connect with condenser 9, later successively
For low-pressure heater 10, oxygen-eliminating device 11, feed pump 12, the outlet of feed pump 12 simultaneously with the economizer 13 of waste gas of incineration boiler 2 and
Gas-turbine waste heat boiler 4 connects, and the fume side of gas-turbine waste heat boiler 4 is burnt by gas recirculating fan 8 with grate-type
Burn the fume side connection of furnace 1.
Natural gas burns in gas turbine 3 and after power generation of doing work, and drains into gas-turbine waste heat boiler 4, temperature
Be 600 DEG C, flue gas in gas-turbine waste heat boiler 4 successively after heat exchangers at different levels in gas-turbine waste heat boiler 4, smoke evacuation
Temperature is 140 DEG C, and a part is exhausted directly in atmosphere, and another part is admitted in incinerator 1 through gas recirculating fan 7, is made
For the flue gas source of flue gas recirculation, instead of part/whole Secondary Airs；Rubbish pass through burned in incinerator 1 flue gas of generation according to
Secondary temperature is 180~190 DEG C after the heat exchangers at different levels in incinerator waste heat boiler 2, is introduced into flue gas purification system.
The overheat of superheated steam, the outlet of 4 primary superheater of gas-turbine waste heat boiler that incinerator waste heat boiler 2 generates is steamed
Vapour design parameter is identical, is 13.9Mpa/450 DEG C, send respectively by jet chimney to simultaneously steam pipe, is sent into waste heat boiler end later
Grade superheater, is still heated to 13.6Mpa/560 DEG C, later and is sent into the acting of steam turbine 6, drives motor 7 to generate electricity, steam
After the condenser condensation that steam turbine 5 exports, by low-pressure heater 10, oxygen-eliminating device 11, the feed pump 12 etc. in ancillary equipment
After equipment, and it is divided into two parts and is respectively fed to add in the economizer 13 and gas-turbine waste heat boiler 4 of incinerator waste heat boiler 2
Heat.
Using 6.4Mpa/450 DEG C of incineration system, generating efficiency is about 27%, and has used 13.6Mpa/560 DEG C
After steam parameter, generating efficiency can be raised to about 32%；Two sets of equipment use a set of turbine generator system, utilize scale effect
Reduce specific investment cost；Use the smoke evacuation of gas-turbine waste heat boiler 4 as the flue gas source of 1 flue gas recirculation of incinerator, flue gas
Recirculation blower 7 and recirculation conduit substantially not by flue gas corrosion.
Embodiment 2
As shown in Fig. 2, simultaneously waste incineration and gas turbine of the vapour device after gas-turbine waste heat boiler finishing superheater
Combined generating system schematic diagram.
Whole system main composition includes: 1) refuse burning system: by grate type incinerator 1 and 2 groups of waste gas of incineration boiler
At wherein waste gas of incineration boiler further includes economizer 13；2) gas turbine 3 and gas-turbine waste heat boiler 4；3) waste gas of incineration pot
Furnace superheated steam and gas-turbine waste heat boiler superheated steam and vapour system: mainly by simultaneously steam pipe 5 and waste gas of incineration boiler overheating
Jet chimney outside device outlet, the jet chimney composition outside gas-turbine waste heat boiler superheater outlet；4) turbine generator system:
Including steam turbine 6, generator 7；5) gas-turbine waste heat boiler smoke evacuation is recycled to incinerator system: by gas recirculating fan 8
And associated conduit composition；6) ancillary equipment: the ancillary equipments such as condenser 9, low-pressure heater 10, oxygen-eliminating device 11 for being needed in system
And necessary feed pump 12, condensate pump, valve etc..
The exhanst gas outlet of the grate type incinerator 1 connects waste gas of incineration boiler 2, and 2 steam side of waste gas of incineration boiler passes through
Pipeline is connected with simultaneously steam pipe 5, and the exhanst gas outlet of gas turbine 3 connects gas-turbine waste heat boiler 4；Gas-turbine waste heat boiler 4
Finishing superheater with and steam pipe 5 connect, and steam pipe 5 is connected with steam turbine 6, and 6 main shaft of steam turbine passes through shaft coupling and generator 7
Connection, 7 steam side of steam turbine are connect with condenser 9, are followed successively by low-pressure heater 10, oxygen-eliminating device 11, feed pump 12, water supply later
12 outlet of pump is connect with the economizer 13 of waste gas of incineration boiler 2 and gas-turbine waste heat boiler 4 simultaneously, gas-turbine waste heat boiler
4 fume side is connected by gas recirculating fan 8 with the fume side of grate type incinerator 1.
Natural gas burns in gas turbine 3 and after power generation of doing work, and drains into gas-turbine waste heat boiler 4, temperature
Be 550 DEG C, flue gas in gas-turbine waste heat boiler 4 successively after heat exchangers at different levels in gas-turbine waste heat boiler 4, smoke evacuation
Temperature is 140 DEG C, and a part is exhausted directly in atmosphere, and another part is admitted in incinerator 1 through gas recirculating fan 7, is made
For the flue gas source of flue gas recirculation, instead of part/whole Secondary Airs；Rubbish pass through burned in incinerator 1 flue gas of generation according to
Secondary temperature is 180~190 DEG C after the heat exchangers at different levels in incinerator waste heat boiler 2, is introduced into flue gas purification system.
The overheat of superheated steam, the outlet of 4 finishing superheater of gas-turbine waste heat boiler that incinerator waste heat boiler 2 generates is steamed
Vapour design parameter is identical, is 6.4Mpa/450 DEG C, send respectively by jet chimney to simultaneously steam pipe and vapour, is admitted to steam turbine later
6 actings, drive generator 7 to generate electricity, and steam adds after the condenser condensation that steam turbine 5 exports by the low pressure in ancillary equipment
After the equipment such as hot device 10, oxygen-eliminating device 11, feed pump 12, and it is divided into province's coal that two parts are respectively fed to incinerator waste heat boiler 2
In device 13 and gas-turbine waste heat boiler 4.
Two sets of equipment use a set of turbine generator system, reduce specific investment cost using scale effect, and improve power generation
Efficiency；Use the smoke evacuation of gas-turbine waste heat boiler 4 as the flue gas source of 1 flue gas recirculation of incinerator, gas recirculating fan 7
And recirculation conduit substantially not by flue gas corrosion.
Claims (6)
1. a kind of system for waste incineration and combustion turbine combined power generation is and vapour device is at gas-turbine waste heat boiler end
Waste incineration and gas turbine combined power generation system before grade superheater characterized by comprising 1) refuse burning system: by
Grate type incinerator and waste gas of incineration boiler composition；2) gas turbine and gas-turbine waste heat boiler；3) waste gas of incineration boiler mistake
Hot steam and gas-turbine waste heat boiler superheated steam and vapour system: by the steam pipe outside the outlet of waste gas of incineration boiler superheater
Road and vapour device and the simultaneously pipeline between vapour device and gas-turbine waste heat boiler superheater；4) turbine generator system: including
Steam turbine, generator；5) gas-turbine waste heat boiler smoke evacuation is recycled to incinerator system: by gas recirculating fan and relevant tube
Road composition；6) ancillary equipment: condenser, oxygen-eliminating device ancillary equipment and necessary feed pump, condensate pump, the valve needed in system
Door；Wherein, the exhanst gas outlet of grate type incinerator (1) connects waste gas of incineration boiler (2), and waste gas of incineration boiler (2) steam side is logical
Piping connects gas-turbine waste heat boiler (4) with simultaneously steam pipe (5) connection, the exhanst gas outlet of gas turbine (3)；More than gas turbine
The primary superheater of heat boiler (4) is connect with finishing superheater by simultaneously steam pipe (5), the final stage of gas-turbine waste heat boiler (4)
The same steam turbine of superheater (6) connection, steam turbine (6) main shaft are connect by shaft coupling with generator (7), steam turbine (7) steam side
It is connect with condenser (9), is followed successively by low-pressure heater (10), oxygen-eliminating device (11), feed pump (12), feed pump (12) outlet later
It is connect simultaneously with the economizer (13) of waste gas of incineration boiler (2) and gas-turbine waste heat boiler (4), gas-turbine waste heat boiler
(4) fume side is connected by the fume side of gas recirculating fan (8) same to grate type incinerator (1).
2. a kind of system for waste incineration and combustion turbine combined power generation is and vapour device is at gas-turbine waste heat boiler end
Waste incineration and gas turbine combined power generation system after grade superheater characterized by comprising 1) refuse burning system: by
Grate type incinerator and waste gas of incineration boiler composition；2) gas turbine and gas-turbine waste heat boiler；3) waste gas of incineration boiler mistake
Hot steam and gas-turbine waste heat boiler superheated steam and vapour system: by the steam pipe outside the outlet of waste gas of incineration boiler superheater
Road and vapour device and the simultaneously pipeline between vapour device and gas-turbine waste heat boiler superheater；4) turbine generator system: including
Steam turbine, generator；5) gas-turbine waste heat boiler smoke evacuation is recycled to incinerator system: by gas recirculating fan and relevant tube
Road composition；6) ancillary equipment: condenser, oxygen-eliminating device ancillary equipment and necessary feed pump, condensate pump, the valve needed in system
Door；Wherein, the exhanst gas outlet of grate type incinerator (1) connects waste gas of incineration boiler (2), and waste gas of incineration boiler (2) steam side is logical
Piping connects gas-turbine waste heat boiler (4) with simultaneously steam pipe (5) connection, the exhanst gas outlet of gas turbine (3)；More than gas turbine
The finishing superheater of heat boiler (4) is connect with simultaneously steam pipe (5), and steam pipe (5) same to steam turbine (6) connects, and steam turbine (6) main shaft is logical
It crosses shaft coupling to connect with generator (7), steam turbine (7) steam side is connect with condenser (9), is followed successively by low-pressure heater later
(10), oxygen-eliminating device (11), feed pump (12), feed pump (12) outlet simultaneously with the economizer (13) of waste gas of incineration boiler (2) and
The fume side of gas-turbine waste heat boiler (4) connection, gas-turbine waste heat boiler (4) passes through gas recirculating fan (8) same to furnace
The fume side of row's formula incinerator (1) connects.
3. a kind of system for waste incineration and combustion turbine combined power generation according to claim 1 or 2, feature exist
In the grate furnace uses flue gas recirculation, and flue gas source is the smoke evacuation of gas-turbine waste heat boiler.
4. a kind of system for waste incineration and combustion turbine combined power generation according to claim 1 or 2, feature exist
In the finishing superheater is arranged in the highest region of flue-gas temperature.
5. a kind of system for waste incineration and combustion turbine combined power generation according to claim 1 or 2, feature exist
In the steam that refuse incineration exhaust-heating boiler and gas-turbine waste heat boiler generate merges, and generates electricity in same turbine generator system.
6. a kind of system for waste incineration and combustion turbine combined power generation according to claim 1 or 2, feature exist
In the flue gas recirculation pipeline is utilidor, and the recirculation blower is high-temperature blower.
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| CN110513696A (en) * | 2019-07-17 | 2019-11-29 | 光大环保技术研究院（南京）有限公司 | A kind of refuse gasification electricity generation system of the double couplings of flue gas-fuel |
| CN111059539A (en) * | 2019-12-31 | 2020-04-24 | 四川精丰机械有限公司 | Garbage treatment system and method |
| CN112503497A (en) * | 2020-11-10 | 2021-03-16 | 中国电力工程顾问集团东北电力设计院有限公司 | Combined cycle thermodynamic system based on coupling of light gas turbine and biomass direct-fired grate boiler |
| CN112943454A (en) * | 2021-03-10 | 2021-06-11 | 上海电力大学 | Waste heat utilization system of gas turbine |
| CN113066595B (en) * | 2021-03-24 | 2024-04-02 | 中广核工程有限公司 | Multi-energy complementary steam supply system |
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