CN206144611U - Integrate IGCC and supercritical unit's peak regulation power station - Google Patents
Integrate IGCC and supercritical unit's peak regulation power station Download PDFInfo
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- CN206144611U CN206144611U CN201621053927.2U CN201621053927U CN206144611U CN 206144611 U CN206144611 U CN 206144611U CN 201621053927 U CN201621053927 U CN 201621053927U CN 206144611 U CN206144611 U CN 206144611U
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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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- 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]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
Abstract
The utility model discloses an integrate IGCC and supercritical unit's peak regulation power station, including IGCC generating set and overcritical generating set, IGCC generating set in gasifier export connect purification unit synthetic gas entry, the purification unit export falls into two the tunnel, connects gas turbine's combustion chamber all the way, makes the peak regulation power station carry out quick varying duty through the synthetic gas air input of adjusting gas turbine, another way connects the supercritical boiler's among the overcritical generating set synthetic gas -burning mouth, leading pipe receives the steam regulator provided the cylinder of the supercritical steam turbine of steam by supercritical boiler in, and the steam regulator export meets the combined cycle steam turbine inlet pipe among the IGCC generating set, the utility model discloses a contact of intersystem pipeline, coordination makes two kinds of flow organic integrations, realizes that the power station is quick, the ability of degree of depth peak regulation can keep higher generating efficiency.
Description
Technical field
This utility model belongs to coal-fired power generator set field, is related to the peak regulation electricity of a kind of integration IGCC and supercritical unit
Stand.
Background technology
Due to rich coal resources in China, low price, for a long time, coal fired power generation is all occupied in China's supply of electric power
The principal status of public economy, the electricity that the annual whole nation has more than 70% are sent by coal-burning power plant.China's coal fired power generation is through long-term development, combustion
Coal power generation machine set technology ability constantly improve, main steam condition are improved constantly, and generating efficiency is constantly lifted, and environmental-protecting performance is also significantly
Improve.However, in can generate electricity under the background constantly developed in the energy with wind-powered electricity generation as representative, coal fired power plant will face energy-conservation
Another a major challenge outside reduction of discharging, i.e. peak modulation capacity are lifted.
On the one hand generate electricity new as representative with Large Copacity supercritical coal-fired units and IGCC (integrated gasification combined cycle plants)
Type coal-fired power generator set, has refreshed the record of coal fired power generation efficiency and pollution reduction, is that following coal fired power generation specifies two
Important development direction.On the other hand, with the continuous adjustment of China's energy resource structure, the renewable energy power generation with wind-powered electricity generation as representative
Ratio is constantly lifted, and as regenerative resource has sustainable, oligosaprobic feature, therefore has obtained vigorously supporting for country,
Quickly grow.However, the renewable energy power generation with wind-powered electricity generation as representative has very big uncertain and unstability, reliability
Can be extremely low.Such as wind power plant, can send electric energy only when having wind, and now often power consumer is not
Electricity consumption is necessarily needed, and when power consumer needs electricity consumption, but not necessarily has wind.Electric energy can not large scale storage, electric energy
It is necessary to have a number of generating set is specifically used to peak regulation during the characteristic sent out i.e. determines electrical network.When there is wind, wind
TV university scale is surfed the Net, and now needs regulating units to reduce load, or even depth load down, is put down with the supply and demand for maintaining electrical network electric energy
Weighing apparatus, and work as wind-powered electricity generation and meet with wind-force decline, when generating is reduced, need regulating units quickly to rise high load capacity again, exited with supplementing wind-powered electricity generation
Generated output.
Ended for the end of the year 2015, China's installed capacity of wind-driven power has reached about 1.5 hundred million kilowatts, be to ensure so large-scale wind
Electricity online, needs the generating set of substantial amounts of other reliable forms to carry out peak regulation.Present case is that nuclear power generating sets are often all pacified
Row's burden basic load, unit will maintain generating state at full capacity, seldom make variation, it is impossible to peak regulation；Need as water conservancy is adjusted
Also the limit has been performed to the restriction of installed capacity, hydroelectric peak ability, can not meet peak regulation breach；Thus to ensure wind
Electricity online, peak load regulation network responsibility need fired power generating unit to undertake naturally.China is due to the restriction of natural gas resource shortage, it is impossible to build
If too many plant gas are used for peak regulation, thus coal-burning power plant participates in the inevitable requirement that peak regulation is future electrical energy development.Therefore not
Carry out the ability that Thermal generation unit should have quick startup, low-load combustion-stabilizing and quick load up.
At present, supercritical generating plant pulverized coal boiler is because the large volume thick-walled metal part such as no drum, thus less worry
The impact of metal thermal stress, can variable load faster, this is the advantage that supercritical power station participates in peak regulation, however, low negative
During lotus state, especially when load less than design load less than 35%, burner hearth is difficult steady combustion, needs to throw oily auxiliary combustion.Fuel oil
Cost is very big, and fuel oil can be polluted, and afterbody dedusting, desulphurization denitration equipment can not run well.And IGCC generating sets,
As system flow is very long, Load Regulation response time is longer, load change speed very little, relies solely on IGCC generatings and also is difficult to
Adapt to the requirement of peak regulation.The coal fired power generation form of supercritical unit and two kinds of IGCC most efficiency and environment-friendly advantage, is all difficult to fit
The needs of wind-powered electricity generation online peak regulation should be coordinated, this is the major issue that the development of current coal fired power generation faces.
The content of the invention
The problem that this utility model is solved is the peak load stations for providing a kind of integrations IGCC and supercritical unit, Ke Yishi
The low-load combustion-stabilizing of existing super critical boiler low cost, and make power station that there is wide load, the ability of the peak regulation of fast speed, overcome big
Capacity Supercritical fired power generating unit and IGCC generating sets respectively due to be difficult to low-load combustion-stabilizing and be difficult to quick load change and can not
Adapt to the shortcoming for coordinating wind-powered electricity generation to surf the Net quick peak regulation.
This utility model is to be achieved through the following technical solutions：
The peak load stations of a kind of integration IGCC and supercritical unit, including IGCC generating sets and supercritical generating sets,
Gasification outlet of still in described IGCC generating sets connects clean unit synthesis gas entrance, and clean unit is exported and is divided into two-way, and one
Road connects the combustor of gas turbine, makes peak load stations carry out quick load change by the synthesis gas air inflow of regulating gas turbine,
Another road connects the synthesis gas burner of the super critical boiler in supercritical generating sets；Super critical boiler connects and draws synthesis gas and lighted a fire
Start, and surely fired using synthesis gas in underload；
In the cylinder of the supercritical steam turbine that steam is provided by super critical boiler, introduction pipe is connected to steam regulator, steams
The outlet of vapour actuator connects the combined cycle steam turbine inlet duct in IGCC generating sets, when IGCC generating sets start,
Red switch and on-load are carried out to combining cyclic steam turbine by from drawing gas for steam regulator.
In described IGCC generating sets, the coal powder entrance of gasification furnace connects the oxygen of coal dust, oxygen intake and air separation unit
Outlet is connected；The coaxially connected gas turbine generator of gas turbine, the outlet of gas turbine turbine connect waste heat boiler, and waste heat boiler goes out
Mouth is discharged fume for waste heat boiler；Waste heat boiler higher pressure steam outlet connects combined cycle steam turbine entrance, combined cycle steam turbine
Coaxially connected combined cycle steam turbine generator, combined cycle steam turbine outlet the second condenser entrance of connection, the second condensing
Device outlet the second entrance of water-supplying pump of connection, the second feedwater pump discharge connection waste heat boiler feed-water intake.
In described supercritical generating sets, super critical boiler is provided with coal dust burner and synthesis gas burner, and coal dust burner connects
Boiler coal-ash, super critical boiler main-steam outlet connect the high pressure cylinder entrance of supercritical steam turbine, supercritical steam turbine
High pressure cylinder outlet connection super critical boiler reheater entrance, in super critical boiler reheater outlet connection supercritical steam turbine
Cylinder pressure entrance, the low pressure (LP) cylinder entrance of the intermediate pressure cylinder outlet connection supercritical steam turbine of supercritical steam turbine, supercritical steam
The low pressure (LP) cylinder outlet first condenser exhaust steam entrance of connection of turbine；The coaxially connected supercritical steam wheel of supercritical steam turbine generates electricity
Machine, the first condenser outlet connection low-pressure heater group entrance, the outlet of low-pressure heater group connect the first entrance of water-supplying pump, and first gives
Exit of pump connects high-pressure heater group entrance, and the outlet of high-pressure heater group connects super critical boiler feed-water intake.
A pipeline is respectively drawn in the intermediate pressure cylinder stage casing and intermediate pressure cylinder front end of supercritical steam turbine respectively and is connected to steam tune
Section device, steam regulator outlet connect combined cycle steam turbine inlet duct.
The peak load stations IGCC generating sets operation and start supercritical generating sets in the case of, in super critical boiler
During startup, draw synthesis gas and lighted a fire using connecing from clean unit, until super critical boiler coal dust firing stably after stop again
Burn synthesis gas；
When supercritical generating sets run and IGCC generating sets are started, in gasification furnace initial start stage, gas
The synthesis gas produced by change stove all sends to super critical boiler burning, after gasification furnace institute production of synthetic gas stability of flow, synthesis gas
Change and deliver to gas turbine；In combined cycle steam turbine initial start stage, combined cycle steam turbine comes first with steam regulator
Steam carry out red switch and generate electricity by way of merging two or more grid systems；After gas turbine starts and drives waste heat boiler to produce the steam of correspondence parameter, then
The confession vapour source of combined cycle steam turbine is switched to into waste heat boiler.
When grid requirements peak load stations rapid-transport line, gasification furnace load maintains to stablize constant, by reducing combustion gas wheel
The synthesis gas air inflow of machine reduces rapidly load, and the synthesis gas that gasification furnace is had more is connected to supercritical pot from clean unit outlet
Stove burns, while reducing the coal dust amount of super critical boiler, the load of super critical boiler is gradually lowered as needed or is remained steady
It is fixed；If electrical network needs power station to carry out Load lifting in short time range again, the synthesis tolerance of super critical boiler is sent in reduction, increases
Plus the synthesis tolerance of gas turbine is sent to, quickly to increase power station generated output, now the load of super critical boiler is by increasing
Coal dust amount is maintained.
When grid requirements peak load stations carry out depth peak regulation Ultra-low load operation, if the load drop of super critical boiler
As little as less than the 35% of rated load, then utilize from purified synthesis gas unit and connect the synthesis gas for drawing and surely fired.
Compared with prior art, this utility model has following beneficial technique effect：
Integration IGCC and the peak load stations of supercritical unit that this utility model is provided, using IGCC and supercritical thermal power machine
The technology type that group combines, arranges the contact pipeline of synthesis gas and steam, between IGCC and supercritical generating sets by two
Plant forms of electricity generation to be organically blended, realize high generation efficiency and environmental-protecting performance.The synthesis gas that gasification furnace is produced can both send combustion
Gas-turbine electricity generation system generates electricity, it is also possible to separates part or all and is sent to super critical boiler burning, this ensures that theres super facing
Demand of igniting during boundary's boiler startup, and steady combustion demand when carrying out ultra-low load peak regulation, make super critical boiler quickly be opened
The peak modulation capacity of dynamic and ultra-low load steady combustion.
In IGCC initial start stages, when the synthesis gas quality produced by gasification furnace is unstable, gas turbine use is insufficient for
During requirement, synthesis gas can send to burning in super critical boiler, it is to avoid send to torch burning and cause the waste of fuel, realize
Energy regenerating.And super critical boiler can be lighted a fire using synthesis gas when starting, replace fuel oil using synthesis gas, save fuel oil
Expense.
Gas turbine needs to start using fuel oil, rises to after high load capacity again by Fuel switching into synthesis gas, and combustion gas wheel
Machine first keep underload from starting to, and to wait combination circulation steam turbine to start and warming-up, causes
Gas turbine toggle speed is slow, and the fuel oil time is long, and fuel consumption is big.This utility model is steamed in supercritical steam turbine and combined cycle
There is steam liaison tube between steam turbine, change the start-up course of IGCC combined cycles part, can be first with supercritical steam
Drawing gas for turbine carry out red switch and on-load to combining cyclic steam turbine, after gas turbine starts, directly by combustion gas wheel
Machine carries out Fuel switching after being promoted to higher load again, red switch and the warming-up mistake without waiting combined cycle steam turbine again
Journey, thus fuel oil usage amount is saved, and accelerate the start-up course of combined cycle.
When peak load regulation network needs power station rapid-transport line, combustion engine can directly reduce synthesis gas air inflow and be lightened the burden
Lotus, without waiting gasification furnace synthesis gas yield to decline, improves load down speed, and the synthesis gas of gasification furnace fecund can be sent to
Super critical boiler burns, it is to avoid energy dissipation.During depth peak regulation, super critical boiler is surely fired using synthesis gas, is replaced and is thrown the steady combustion of oil,
Operating cost is saved, and avoids what the equipment such as the electric precipitation of boiler tail, desulphurization denitration were produced by fuel oil imperfect combustion
Black smoke pollution, improves the safety of equipment.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Wherein, 1 is coal dust；2 is gasification furnace；3 is clean unit；4 is boiler coal-ash；5 is super critical boiler；6 face for super
Boundary's steam turbine；7 is supercritical steam turbine generator；8 is the first condenser；9 is low-pressure heater group；10 are the first feedwater
Pump；11 is high-pressure heater group；12 is air；13 is air separation unit；14 is gas turbine；15 is gas turbine generator；16 are
Waste heat boiler；17 discharge fume for waste heat boiler；18 is steam regulator；19 is combined cycle steam turbine；20 steam for combined cycle
Steam turbine generator；21 is the second condenser；22 is the second feed pump.
Specific embodiment
This utility model is described in further detail with reference to specific embodiment, described is to this utility model
Explanation rather than restriction.
Send out referring to the peak load stations of Fig. 1, a kind of integration IGCC and supercritical unit, including IGCC generating sets and supercritical
Group of motors, it is characterised in that the outlet of gasification furnace 2 in described IGCC generating sets connects 3 synthesis gas entrance of clean unit, purifies
The outlet of unit 3 is divided into two-way, connects the combustor of gas turbine 14 all the way, is made by the synthesis gas air inflow of regulating gas turbine 14
Peak load stations carry out quick load change, and another road connects the synthesis gas burner of the super critical boiler 5 in supercritical generating sets；It is super to face
Boundary's boiler 5 connects and draws synthesis gas and carry out ignition trigger, and is surely fired using synthesis gas in underload；
In the cylinder of the supercritical steam turbine 6 that steam is provided by super critical boiler 5, introduction pipe is connected to steam regulator
18, the outlet of steam regulator 18 connects 19 inlet duct of combined cycle steam turbine in IGCC generating sets, in IGCC electromotors
When group starts, carry out red switch and on-load to combining cyclic steam turbine 19 by from drawing gas for steam regulator 18.
The technology type that this utility model is combined with supercritical thermal power unit using IGCC, in IGCC and supercritical generating
The contact pipeline of synthesis gas and steam is set between unit, two kinds of forms of electricity generation are organically blended.The conjunction that gasification furnace is produced
Gas turbine generating system can have both been sent to generate electricity into gas, it is also possible to separate part or all and be sent to super critical boiler burning, this
Demand of igniting when sample ensures that super critical boiler starts, and steady combustion demand when carrying out ultra-low load peak regulation, make supercritical
Boiler obtains the quick peak modulation capacity started with ultra-low load steady combustion.Supercritical steam turbine and combined cycle steam turbine it
Between have steam liaison tube, when IGCC starts, can first with supercritical steam turbine drawing gas to combine cyclic steam turbine
Red switch and on-load are carried out, after gas turbine starts, gas turbine higher load is promoted to into directly, without again etc.
Red switch and the warming-up process of combined cycle steam turbine are treated, the start-up course of the combined cycle part of IGCC is thus accelerated.
Based on the peak regulation of the integration IGCC and the peak load stations of supercritical unit, including following operation：
When grid requirements peak load stations rapid-transport line, 2 load of gasification furnace maintains to stablize constant, by reducing combustion gas wheel
The synthesis gas air inflow of machine 14 reduces rapidly load, and the synthesis gas that gasification furnace 2 is had more is connected to super facing from the outlet of clean unit 3
Boundary's boiler 5 burns, at the same reduce super critical boiler 5 coal dust amount, make the load of super critical boiler 5 be gradually lowered as needed or
Remain stable；If electrical network needs power station to carry out Load lifting in short time range again, the synthesis of super critical boiler 5 is sent in reduction
Tolerance, increase are sent to the synthesis tolerance of gas turbine 14, and quickly to increase power station generated output, now super critical boiler 5 is negative
Lotus is maintained by increasing coal dust amount.
Specific embodiment is given below.As shown in figure 1, the peak load stations include gasification furnace 2, clean unit 3, supercritical
Boiler 5, supercritical steam turbine 6, supercritical steam turbine generator 7, the first condenser 8, low-pressure heater group 9, first feed water
Pump 10, high-pressure heater group 11, air separation unit 13, gas turbine 14, gas turbine generator 15, waste heat boiler 16, steam are adjusted
Device 18, combination circulation steam turbine 19, combined cycle steam turbine generator 20, the second condenser 21 and second feed pump 22 etc. mainly set
Standby composition.
The connected mode of each capital equipment in power station and unit is：13 entrance of air separation unit connects air 12,13 oxygen of air separation unit
Gas outlet connects 2 oxygen intake of gasification furnace, and 2 coal powder entrance of gasification furnace connects coal dust 1, and the outlet of gasification furnace 2 connects 3 crude synthesis gas of clean unit
Entrance, the outlet of clean unit 3 are divided into two-way, connect the synthesis gas burner of super critical boiler 5 all the way, and another road connects gas turbine 14 and fires
Room is burnt, 14 coaxially connected gas turbine generator 15 of gas turbine, the outlet of 14 turbine of gas turbine connect waste heat boiler 16, waste heat boiler
16 outlets are waste heat boiler smoke evacuation 17；16 higher pressure steam outlet of waste heat boiler connects 19 entrance of combined cycle steam turbine, combines and follows
19 coaxially connected combined cycle steam turbine generator 20 of ring steam turbine, outlet the second condensing of connection of combined cycle steam turbine 19
21 entrance of device, outlet connection 22 entrance of the second feed pump of the second condenser 21, the outlet connection waste heat boiler 16 of the second feed pump 22
Feed-water intake；
5 coal dust burner of super critical boiler connects boiler coal-ash 4,5 main-steam outlet of super critical boiler connection supercritical steam wheel
6 high pressure cylinder entrance of machine, 6 high pressure cylinder of supercritical steam turbine outlet connection 5 reheater entrance of super critical boiler, super critical boiler 5
Reheater outlet connection 6 intermediate pressure cylinder entrance of supercritical steam turbine, 6 intermediate pressure cylinder of supercritical steam turbine outlet connection supercritical steam
6 low pressure (LP) cylinder entrance of steam turbine, 6 low pressure (LP) cylinder of supercritical steam turbine outlet connection 8 exhaust steam entrance of the first condenser；Supercritical steam
6 coaxially connected supercritical steam turbine generator 7 of turbine, 9 entrance of the outlet connection low-pressure heater of the first condenser 8 group, low pressure add
The hot outlet of device group 9 connects 10 entrance of the first feed pump, and the outlet of the first feed pump 10 connects 11 entrance of high-pressure heater group, high-pressure heater
11 outlet of group connects 5 feed-water intake of super critical boiler.In 6 intermediate pressure cylinder stage casing of supercritical steam turbine and Chao Linzheng circle steam turbines 6
Cylinder pressure front end is drawn a pipeline respectively and is connected to steam regulator 18, and the outlet of steam regulator 18 connects combined cycle steam turbine 19
Inlet duct.
The characteristic that peak load stations should have includes quick startup, fast lifting load and station boiler in underload even
Burning that can be stable during ultra-low load, i.e., it is steady to fire.Illustrate that the peak load stations realize the process of these properties below.The tune
The startup in peak power station is divided into the startup of supercritical generating part and supercritical generating part when the cold start of full factory, IGCC run
Three kinds of situations of the startup of IGCC parts during operation, the power station can arrange IGCC parts and supercritical generating part to shut down inspection respectively
Repair, so the start-up course of the power station overwhelming majority refers to latter two situation.
There is the pipeline for being connected to super critical boiler in the outlet of purified synthesis gas unit 3, super critical boiler 5 can connect and draw synthesis
Gas is carried out ignition trigger and is surely fired using synthesis gas in underload.Supercritical generating portion will be started for the operation of IGCC parts
Point situation, when super critical boiler 5 starts, using connect from clean unit 3 be introduced through come synthesis gas lighted a fire, up to surpass face
Boiler 5 coal dust firing in boundary's stably stops burn synthesis gas later again.IGCC portions will be started for supercritical generating part is run
Situation about dividing, in gasification furnace initial start stage, the synthesis gas produced by gasification furnace is all sent to super critical boiler 5 and is burnt, to reclaim heat
Steam can be produced for generating electricity, after gasification furnace institute production of synthetic gas stability of flow, synthesis gas changes delivers to gas turbine.
Steam regulator 18 is provided with combined cycle vapor wheel pusher side, and two strands of steam is extracted from supercritical steam turbine
Mix to steam regulator 18, to obtain the steam of suitable parameters.In 19 initial start stage of combined cycle steam turbine, combined cycle
Steam turbine 19 carries out red switch first with the steam of steam regulator 18 and generates electricity by way of merging two or more grid systems；When gas turbine 14 starts and band
After dynamic waste heat boiler 16 produces the steam of correspondence parameter, then the confession vapour source of combined cycle steam turbine 19 is switched to into waste heat pot
Stove 16, the measure can accelerate the toggle speed of gas turbine and combined cycle steam turbine.
For the quick load change demand of responsive electricity grid peak regulation, carried out quickly by the synthesis gas air inflow of regulating gas turbine
Varying duty, gasification furnace load maintain to stablize constant, and in addition to for gas turbine power generation, the synthesis gas of gasification furnace fecund sends to super facing
Boundary's boiler combustion.When grid requirements power station rapid-transport line, combustion gas wheel is reduced rapidly by reducing synthesis gas air inflow first
The load of machine 14, and the synthesis gas that gasification furnace 2 is had more is connected to super critical boiler 5 and burns from the outlet of clean unit 3, while reducing
The coal dust amount of super critical boiler 5, makes the load of super critical boiler 5 be gradually lowered as needed or remain stable.If the short time
In the range of electrical network need power station to carry out Load lifting again, then reduce and be sent to the synthesis tolerance of super critical boiler 5, combustion gas is sent in increase
The synthesis tolerance of turbine, quickly to increase power station generated output, now the load of super critical boiler 5 is by increasing coal dust amount dimension
Hold.
When grid requirements power station carries out depth peak regulation Ultra-low load operation, if the load drop of super critical boiler 5
As little as less than the 35% of rated load, then utilize from purified synthesis gas unit 3 and connect the synthesis gas for drawing and surely fired.
In the embodiment, the major parameter of the peak load stations that the IGCC is integrated with supercritical unit is given by table 1.
Table 1 integrates the peak load stations major parameter of IGCC and supercritical thermal power generation unit
Example given above is to realize this utility model preferably example, and this utility model is not limited to above-mentioned enforcement
Example.Any nonessential addition that those skilled in the art is made according to the technical characteristic of technical solutions of the utility model,
Replace, belong to protection domain of the present utility model.
Claims (4)
1. peak load stations of a kind of integration IGCC and supercritical unit, including IGCC generating sets and supercritical generating sets, its
It is characterised by, gasification furnace (2) outlet in described IGCC generating sets connects clean unit (3) synthesis gas entrance, clean unit
(3) outlet is divided into two-way, connects the combustor of gas turbine (14) all the way, by the synthesis gas air inflow of regulating gas turbine (14)
Peak load stations are made to carry out quick load change, another road connects the synthesis gas burner of the super critical boiler (5) in supercritical generating sets；
Super critical boiler (5) connects and draws synthesis gas and carry out ignition trigger, and is surely fired using synthesis gas in underload；
In the cylinder of the supercritical steam turbine (6) that steam is provided by super critical boiler (5), introduction pipe is connected to steam regulator
(18), steam regulator (18) outlet connects combined cycle steam turbine (19) inlet duct in IGCC generating sets, in IGCC
When generating set starts, carry out red switch and with negative to combining cyclic steam turbine (19) by from drawing gas for steam regulator (18)
Lotus.
2. the peak load stations of IGCC and supercritical unit are integrated as claimed in claim 1, it is characterised in that described IGCC sends out
In group of motors, the coal powder entrance of gasification furnace (2) connects coal dust (1), and oxygen intake is connected with the oxygen outlet of air separation unit (13)；
The coaxially connected gas turbine generator (15) of gas turbine (14), the outlet of gas turbine (14) turbine connect waste heat boiler (16), waste heat
Boiler (16) outlet discharges fume (17) for waste heat boiler；Waste heat boiler (16) higher pressure steam outlet connects combined cycle steam turbine (19)
Entrance, the coaxially connected combined cycle steam turbine generator (20) of combined cycle steam turbine (19), combined cycle steam turbine
(19) outlet connection the second condenser (21) entrance, the second condenser (21) outlet connection the second feed pump (22) entrance, second
Feed pump (22) outlet connection waste heat boiler (16) feed-water intake.
3. the peak load stations of IGCC and supercritical unit are integrated as claimed in claim 1, it is characterised in that described supercritical
In generating set, super critical boiler (5) is provided with coal dust burner and synthesis gas burner, and coal dust burner connects boiler coal-ash (4), supercritical
The high pressure cylinder entrance of boiler (5) main-steam outlet connection supercritical steam turbine (6), the high pressure cylinder of supercritical steam turbine (6)
Outlet connection super critical boiler (5) reheater entrance, super critical boiler (5) reheater outlet connection supercritical steam turbine (6)
Intermediate pressure cylinder entrance, supercritical steam turbine (6) intermediate pressure cylinder outlet connection supercritical steam turbine (6) low pressure (LP) cylinder entrance,
Low pressure (LP) cylinder outlet connection the first condenser (8) the exhaust steam entrance of supercritical steam turbine (6)；Supercritical steam turbine (6) is coaxial
Connection supercritical steam turbine generator (7), the first condenser (8) outlet connection low-pressure heater group (9) entrance, low-pressure heater
Group (9) outlet connects the first feed pump (10) entrance, and the first feed pump (10) outlet connects high-pressure heater group (11) entrance, and high pressure adds
Hot device group (11) outlet connects super critical boiler (5) feed-water intake.
4. peak load stations of the integration IGCC as described in claim 1 or 3 and supercritical unit, it is characterised in that respectively super
The intermediate pressure cylinder stage casing and intermediate pressure cylinder front end of transcritical vapor turbine (6) is respectively drawn a pipeline and is connected to steam regulator (18), steam
Actuator (18) outlet connects combined cycle steam turbine (19) inlet duct.
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| CN201621053927.2U CN206144611U (en) | 2016-09-13 | 2016-09-13 | Integrate IGCC and supercritical unit's peak regulation power station |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246252A (en) * | 2016-09-13 | 2016-12-21 | 中国华能集团公司 | A kind of peak load stations integrating IGCC and supercritical unit and peak regulating method |
| CN108397768A (en) * | 2018-04-27 | 2018-08-14 | 重庆富燃科技股份有限公司 | A kind of device and method that coal gas is applied to coal-fired electric generation furnace |
| CN108518666A (en) * | 2018-04-02 | 2018-09-11 | 北京阳华科技有限公司 | It is a kind of surely to fire system and method by the pulverized-coal fired boiler of fuel of coal |
| CN108518666B (en) * | 2018-04-02 | 2024-04-12 | 北京阳华科技有限公司 | Pulverized coal boiler stable combustion system and method using coal as fuel |
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- 2016-09-13 CN CN201621053927.2U patent/CN206144611U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246252A (en) * | 2016-09-13 | 2016-12-21 | 中国华能集团公司 | A kind of peak load stations integrating IGCC and supercritical unit and peak regulating method |
| CN108518666A (en) * | 2018-04-02 | 2018-09-11 | 北京阳华科技有限公司 | It is a kind of surely to fire system and method by the pulverized-coal fired boiler of fuel of coal |
| CN108518666B (en) * | 2018-04-02 | 2024-04-12 | 北京阳华科技有限公司 | Pulverized coal boiler stable combustion system and method using coal as fuel |
| CN108397768A (en) * | 2018-04-27 | 2018-08-14 | 重庆富燃科技股份有限公司 | A kind of device and method that coal gas is applied to coal-fired electric generation furnace |
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