CN106224036A - The refuse gasification combustion gas of a kind of multi-stage heat exchanger and steam turbine combined generating system - Google Patents
The refuse gasification combustion gas of a kind of multi-stage heat exchanger and steam turbine combined generating system Download PDFInfo
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- CN106224036A CN106224036A CN201610801203.XA CN201610801203A CN106224036A CN 106224036 A CN106224036 A CN 106224036A CN 201610801203 A CN201610801203 A CN 201610801203A CN 106224036 A CN106224036 A CN 106224036A
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- 238000002309 gasification Methods 0.000 title claims abstract description 167
- 239000000567 combustion gas Substances 0.000 title claims abstract description 20
- 239000007789 gas Substances 0.000 claims abstract description 145
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 145
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 82
- 239000003546 flue gas Substances 0.000 claims abstract description 82
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 76
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 75
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 71
- 238000002485 combustion reaction Methods 0.000 claims abstract description 43
- 239000000779 smoke Substances 0.000 claims abstract description 33
- 239000002918 waste heat Substances 0.000 claims abstract description 31
- 230000005611 electricity Effects 0.000 claims abstract description 15
- 239000000428 dust Substances 0.000 claims description 68
- 239000002893 slag Substances 0.000 claims description 41
- 230000033228 biological regulation Effects 0.000 claims description 25
- 230000007704 transition Effects 0.000 claims description 21
- 239000002912 waste gas Substances 0.000 claims description 18
- 238000010438 heat treatment Methods 0.000 claims description 16
- 239000006200 vaporizer Substances 0.000 claims description 11
- 238000005273 aeration Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 10
- 238000000746 purification Methods 0.000 claims description 10
- 239000003818 cinder Substances 0.000 claims description 9
- 235000019504 cigarettes Nutrition 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 7
- 230000003020 moisturizing effect Effects 0.000 claims description 4
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- 238000002156 mixing Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 18
- 230000008569 process Effects 0.000 abstract description 9
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- 231100000719 pollutant Toxicity 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 description 12
- 238000011084 recovery Methods 0.000 description 9
- 230000008901 benefit Effects 0.000 description 7
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- 238000004056 waste incineration Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241000628997 Flos Species 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K21/00—Steam engine plants not otherwise provided for
- F01K21/04—Steam engine plants not otherwise provided for using mixtures of steam and gas; Plants generating or heating steam by bringing water or steam into direct contact with hot gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G1/00—Steam superheating characterised by heating method
- F22G1/02—Steam superheating characterised by heating method with heat supply by hot flue gases from the furnace of the steam boiler
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B90/00—Combustion methods not related to a particular type of apparatus
- F23B90/04—Combustion methods not related to a particular type of apparatus including secondary combustion
- F23B90/06—Combustion methods not related to a particular type of apparatus including secondary combustion the primary combustion being a gasification or pyrolysis in a reductive atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/027—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using cyclone separators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
- F23L7/002—Supplying water
- F23L7/005—Evaporated water; Steam
-
- 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
-
- 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]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
The invention discloses refuse gasification combustion gas and the steam turbine combined generating system of a kind of multi-stage heat exchanger, including refuse gasification system, steam generator system, electricity generation system, electricity generation system includes blender, air compressor, synthesis flue gas compressor, synthesis smoke combustion room, turbine a, turbine b, steam turbine, electromotor a, electromotor b, waste heat boiler.The gas outlet of described turbine a with give water input system water inlet between be connected have synthesis gas vapour gas heat exchanger add the passage of heat, air vapour gas heat exchanger add the passage of heat, vapor-water heat exchanger add the passage of heat.The heated passage of air-water heat exchanger is connected between described low-pressure air compressor, pressure-air compressor.Using refuse gasification combustion gas and the steam turbine combined generating system of this multi-stage heat exchanger, large-scale rubbish continuous gasification processes, and garbage treatment quantity is bigger, and the organic efficiency of heat is high, it is possible to efficiently reduce pollutant emission.
Description
Technical field
The invention belongs to solid waste incineration Treatment and recovery processing technology field, particularly relate to a kind of multi-stage heat exchanger
Refuse gasification combustion gas and steam turbine combined generating system.
Background technology
Existing technology of garbage disposal mainly has burning, sanitary landfills, compost, waste recovery etc..Conventional in garbage disposal
In technology, it is obvious that burning disposal has reduced training, innoxious thoroughly, occupation of land amount is little, and waste heat energy is obtained by, and secondary pollution is few
Etc. advantage, meet the strategic requirement of China's sustainable development.But along with both at home and abroad environmental requirement being improved constantly, how to strengthen
Control to secondary pollution is particularly important.Therefore, refuse pyrolysis gasification burning technology is gradually shifted onto the road of industrial applications
On, primarily now using all kinds of incineration technology especially for domestic rubbish, the industrialization widely of gasification burning technology will
The technological innovation bringing domestic garbage disposal industry is regenerated.
For many years, China's scientific research to the gasification burning technology such as biomass, rubbish, it is in progress a lot of, the base of laboratory
Plinth research is a lot, also has applied research, such as: rotary kiln type, the vertical and destructive gasifying of fluidized bed type or temperature gasification and high melt skill
Art etc..But Technique Popularizing application is upper or there is a definite limitation, raw material type, garbage treatment quantity, secondary pollution control and economical
Benefits etc. are principal elements.
In existing burning process and equipment, fire grate type incinerator is various informative, and its application accounts for whole world waste incineration
More than the 80% of the total market size, wherein has and uses mechanical type backstepping fire grate, forwards fire grate or combined fire grate in body of heater, also adopt
With the fire grate such as chain-plate type and drum-type.In boiler plant, it is a lot of that boiler reclaims heat methods, technology maturation；Thermal source kind
Class is the most, such as: the thermals source such as solar energy, smelting furnace waste heat, coal furnace, fluid bed, fixed bed, rotary kiln, utilizes boiler to reclaim heat
Amount, be used for generating electricity, heat supply, heating etc..
In sum, typical gasification burning and boiler plant technology maturation, it is respectively arranged with himself advantage, but actual in China
Application needs solve problem and shortage:
1., for characteristics such as China's house refuse water content height, complicated components, the technology of moving hearth uses, to rubbish
Conveying capacity needs emphasis to consider.In flue gas after simultaneously burning, fly ash content is higher, and collecting ash is heavier, deashing repair and maintenance
Cycle is short.
2. being on the increase along with refuse production, sanitary fill such as mountain, garbage treatment quantity must be effectively improved,
Could meeting the market requirement.
3., in the face of strict pollutant emission requirement, secondary pollution controls the key problem being technically need to solve.
4., in order to effectively increase economic efficiency, in rubbish heat treatment process, the organic efficiency of heat needs to improve.Existing
Rubbish heat treatment technics generally use boiler to reclaim the high-temperature flue gas heat after waste incineration, produce steam and shift steam turbine onto and send out
Electricity, whole transition heat efficiency losses is relatively big, processes identical quantity of refuse, relatively reduces thermal losses and raising heat exchanger effectiveness just may be used
To improve the thermal efficiency.
The following patent of existing technology: external combustion wet air gas turbine power generating system (ZL 01120378.1), combustion gas wheel
Machine electricity generation system and progress control method (ZL 200880007113.7) thereof, double-fuel combustion-supporting type gas-steam combined cycle system
System (ZL 200610062631.1), coal powder gas turbine generation system and the process of generation coal powder two-phase flow fuel
(ZL200610062055.0), multiple row sectional drive combined type domestic garbage incinerator (ZL200710092508.9) and two-part
The problem all referred in incinerator (ZL201010268376.2): be not bound with rubbish heat treatment mode method, and
The problems such as the secondary pollution control of rubbish heat treatment, smoke components complexity；Conventional garbage heat treatment thermal chemical reaction is anti-with oxidation
Should be main, reduction reaction assists, and is easily generated secondary pollution, and burned oxygen quotient is big, and First air, secondary wind infeed amount are big,
In flue gas, dust content is higher, affects heat reclaiming system and smoke processing system relatively big, easy dust stratification, and exhaust gas volumn is relatively big,
Relative reduction thermal conversion efficiency；Refuse gasification synthesizes the deep purifying problem of flue gas after burning, need to synthesize flue gas cleannes
Meet gas turbine requirement, and the application of refuse gasification burning-gas and steam turbine combined cycle generation；Rubbish heat treatment
The innovation of mode, reduces exhaust gas volumn, changes flue gas composition, and chemical reaction environment becomes reduction reaction, the relative raising of the thermal efficiency.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, it is provided that a kind of transition heat efficiency losses is less, heat
Organic efficiency is higher, the refuse gasification combustion gas of the multi-stage heat exchanger that pollutant emission is lower and steam turbine combined generating system.
The object of the present invention is achieved like this:
The refuse gasification combustion gas of a kind of multi-stage heat exchanger and steam turbine combined generating system, burn system including refuse gasification
System, steam generator system, electricity generation system, described steam generator system has drum, superheater, and described electricity generation system includes blender, low pressure
Air compressor, pressure-air compressor, synthesis flue gas compressor, synthesis smoke combustion room, turbine a, turbine b, steamer
Machine, electromotor a, electromotor b, waste heat boiler, air-water heat exchanger, vapor-water heat exchanger, air vapour gas heat exchanger, synthesis gas vapour gas change
Hot device and give water input system, the sidewall of described blender is provided with the first entrance, the second entrance, the bottom of described blender
Being provided with outlet, the top of described blender is provided with venthole, and the first entrance of described blender connects the saturated vapor of drum
Outlet, the second entrance of described blender connects the gas outlet of pressure-air compressor, the air inlet of described pressure-air compressor
Mouth connects the gas outlet of low-pressure air compressor, the air inlet of described low-pressure air compressor and atmosphere, described blender
Outlet connect the water inlet of drum, the venthole of described blender connects the air intake of superheater, going out of described superheater
Steam ports output high pressure superheated steam, the venthole of described superheater connects the air inlet of turbine a, described turbine a and generating
Machine a power connects, and high pressure superheated steam promotes turbine a generating, and the air inlet of described synthesis flue gas compressor connects boiler system
The Waste gas outlet of system, the high-pressure synthesis flue gas that the gas outlet output steam generator system of synthesis flue gas compressor has not utilized, described
The air inlet of synthesis smoke combustion room connects the synthesis gas outlet of flue gas compressor, the venthole of superheater respectively, is pressed through by height
Vapours and the input synthesis smoke combustion indoor mixed combustion of high-pressure synthesis flue gas, the connection whirlpool, gas outlet of synthesis smoke combustion room
The air inlet of turbine b, described turbine b is connected with electromotor b power, and high-temperature flue gas promotes turbine b generating, turbine b's
Gas outlet connects waste heat boiler, and the venthole of described waste heat boiler connects steam turbine, and described steam turbine is with electromotor b power even
Connect, the high pressure superheated steam pushing turbine generating that waste heat boiler is discharged, the discharge outlet of described waste heat boiler, the draining of steam turbine
Mouth connects respectively to the water inlet of water input system；
It is connected between the gas outlet of described turbine a with the water inlet giving water input system and has synthesis gas vapour gas heat exchanger
Add the passage of heat, air vapour gas heat exchanger add the passage of heat, vapor-water heat exchanger add the passage of heat, the heating of synthesis gas vapour gas heat exchanger
Passage, air vapour gas heat exchanger add after passage of heat parallel connection again with the heating Tandem of vapor-water heat exchanger, described synthesis flue gas
The heated passage of synthesis gas vapour gas heat exchanger it is connected between the air inlet of combustor and the gas outlet of synthesis flue gas compressor, described
The heated passage of air vapour gas heat exchanger it is connected between second entrance and the gas outlet of pressure-air compressor of blender, described
Connect the heated passage of air-water heat exchanger between low-pressure air compressor, pressure-air compressor, described go out to water input system
Steam generator system, waste heat boiler are supplied after being sequentially connected with the heated passage adding the passage of heat, vapor-water heat exchanger of air-water heat exchanger by the mouth of a river
Water.
Further, described include being sequentially connected in series by pipeline to water input system condenser, water pump, oxygen-eliminating device, increasing
Water pump, the discharge outlet of described waste heat boiler is connected between water pump, oxygen-eliminating device by pipeline, between described water pump, oxygen-eliminating device
Arrange to the water inlet of water input system, connect water source, described condenser to the water inlet of water input system by moisturizing pipeline
Water inlet by pipeline connect steam turbine discharge outlet, the outlet of described booster water pump is to the water outlet of water input system
Mouthful.
The steam that steam output device can not utilized by condenser is all converted to water, and absorbs the heat of steam release
Amount, the Main Function of oxygen-eliminating device is exactly the oxygen removing in boiler feedwater with it and other gas, it is ensured that the quality of feedwater, increases
Water pump can improve hydraulic pressure, it is ensured that to the water supply capacity of water input system, can be to steam turbine, waste heat pot to water input system
The water that fire grate goes out carries out further heat recovery, improves heat recovery efficiency.
Further, described low-pressure air compressor, pressure-air compressor, turbine a, electromotor a power successively are even
Connect, and synchronous axial system；Described synthesis flue gas compressor, turbine b, steam turbine, electromotor b power successively connect, and synchronize to turn
Dynamic.
Further, described steam generator system includes that boiler body, described boiler body have cyclone dust removal room, furnace chamber a, stove
Room b, the lower end of described cyclone dust removal room arranges smoke inlet, and the smoke inlet of cyclone dust removal room is with refuse gasification CIU even
Connecing, upper end, cyclone dust removal room is the 3rd exhanst gas outlet, and the 3rd exhanst gas outlet of upper end, cyclone dust removal room connects with the upper end of furnace chamber a
Logical, described furnace chamber a, the lower end connection of furnace chamber b, the upper end of described furnace chamber b arranges waste gas outlet, and described cyclone dust removal indoor are along week
Being provided with described superheater in the water-cooling wall being provided with ringwise, described furnace chamber a, be provided with vaporizer in furnace chamber b, boiler is originally
The top of body arranges described drum, and described cyclone dust removal room, furnace chamber a, furnace chamber b are respectively positioned on below drum, and described drum sets
Having soda pop import, be provided with water separator in drum, be used for separating steam water interface, drum connects water by the first down-comer
The water inlet of cold wall, is used for exporting the isolated water of water separator, and drum connects entering of vaporizer by the second down-comer
The mouth of a river, is used for exporting the isolated water of water separator, and described water-cooling wall, the venthole of vaporizer are connected by steam pipe respectively
The air intake of drum, is used for the high-temperature steam that refluxes.
Flue gas in order to discharge furnace chamber c carries out harmless treatment, it is preferable that described boiler body has furnace chamber c, described
The upper end of furnace chamber c connects with the waste gas outlet of furnace chamber b upper end, and the lower end of furnace chamber c arranges Waste gas outlet, and described furnace chamber c's is useless
Gas floss hole connects flue gas purification system, thick cleaning system that described flue gas purification system includes being sequentially connected with, booster fan, essence
Washing cleaner unit, the flue gas after purification feeds synthesis flue gas compressor.
Preferably, described thick cleaning system includes aeration tower and cleaner unit, and described fine purifiation cleaner unit uses Lei Shi venturi
Washing system, including Venturi scrubber and cyclone separator, described aeration tower connects the Waste gas outlet of furnace chamber c, aeration tower
Outlet connects cleaner unit, then is made deep purifying by entering fine purifiation cleaner unit after booster fan supercharging.
Thick cleaning system can remove the impurity of big particle diameter, dust, and fine purifiation cleaner unit can remove steam, micropowder dirt etc.,
Meet gas turbine to combustion gas cleannes requirement.
Flue gas in order to discharge furnace chamber b carries out further heat recovery, improves heat recovery efficiency, further
Ground, is provided with economizer in described furnace chamber c, the water inlet of described economizer connects with to the outlet of water input system, described joint
The outlet of hot device and the soda pop inlet communication of drum.
Further, described refuse gasification CIU includes incinerator, circulation air feed system, described gasification burning
Stove includes grate, and feed hopper, gasification furnace and the incinerator set gradually on grate, the rear of gasification furnace along feedstock direction
For the cinder notch that falls of gasification furnace, incinerator is positioned at gasification furnace and falls the front lower place of cinder notch, and the rear of incinerator is the slag notch of incinerator,
Described grate is provided with garbage pusher device, and described garbage pusher device is positioned at the lower section of feed hopper, for by the rubbish in feed hopper
Push in gasification furnace, the lower section of gasification furnace moving hearth and incinerator moving hearth to be respectively arranged below with at least one independent
The air compartment arranged, is provided with windrow seal section, the stove between described gasification furnace and incinerator between described feed hopper, gasification furnace
Leaving transition in frame part to fall slag section, the described transition slag section that falls is provided with residue pusher, for the rubbish that will fall in gasification furnace
Rubbish residue pushes in incinerator, and described transition falls and is provided with isolating door to be opened/closed in slag section, and described isolating door is for will gasification
Stove, incinerator cut off；Described gasification furnace, incinerator include furnace shell, moving hearth respectively, and the forward and backward side of described gasification furnace is respectively
By windrow seal section, transition fall slag section seal, described transition fall slag section isolation gasification furnace, incinerator, make gasification furnace, incinerator
Separate；Described gasification furnace, incinerator, respectively in the shape that arches upward, the face arch of described gasification furnace, rear arch are respectively provided with secondary and supply
Air port, the vault of described gasification furnace arranges the first exhanst gas outlet, the smoke inlet of described cyclone dust removal room and the first exhanst gas outlet
Connection, the vault of described incinerator arranges the second exhanst gas outlet, described gasification furnace, incinerator is respectively equipped with igniting combustion supporting hole；
Described circulation air feed system includes dust arrester, the first blower fan, the second blower fan, and the inlet end of described dust arrester leads to
Piping and the second exhanst gas outlet connect, and the outlet side of described dust arrester is connected by the inlet end of pipeline and the first blower fan,
The outlet side of described first blower fan connects the house steward of the first manifold, the arm of described first manifold respectively with gasification furnace moving hearth
Lower section each air compartment, a gasification furnace on each secondary for the smoke inlet connection of air port and cyclone dust removal room, described the
The first regulation valve, the air inlet of described second blower fan and atmosphere, described second wind it is respectively provided with on each arm of one manifold
The gas outlet of machine connects the house steward of the second manifold, the arm of described second manifold respectively with incinerator moving hearth below each one
Secondary air compartment and the inlet end of dust arrester, outlet side connection, each arm of described second manifold is respectively provided with the second regulation
Valve, described cyclone dust removal room is provided with some combustion airs for air port, described some combustion airs for air port be positioned at smoke inlet, the 3rd
Between exhanst gas outlet, also include that the 3rd manifold, the described house steward of the 3rd manifold connect with the gas outlet of the second blower fan, the described 3rd
Each arm of manifold connects for air port with some combustion airs respectively, and each arm of the 3rd manifold is respectively provided with the 3rd regulation valve.
In order to discharge furnace chamber a, furnace chamber b, the waste residue of cyclone dust removal indoor flue gas deposition generation, and prevent waste residue effusion from producing
Pollute, it is preferable that being provided with common slag notch below described furnace chamber a, furnace chamber b, the lower end of described cyclone dust removal room is provided with from upper
The taper slag notch diminished to lower radius, this common slag notch, taper slag notch connect with the burner hearth of gasification furnace respectively.
Flue gas in order to discharge furnace chamber b carries out further heat recovery, improves heat recovery efficiency, it is preferable that
Being provided with air preheater in described furnace chamber c, the outlet side of described second blower fan connects the air inlet of air preheater, air preheat
The gas outlet of device connects the house steward of the second manifold.
Owing to have employed technique scheme, there is advantages that
Present invention employs pressure-air that air compressor exports by blender, the saturated vapor of drum output mixes
Closing, export high pressure superheated steam after superheater, high pressure superheated steam promotes turbine a generating, and the present invention uses synthesis flue gas
The high-pressure synthesis flue gas that compressor output steam generator system has not utilized, the high pressure superheated steam of superheater output and high-pressure synthesis cigarette
Gas input synthesis smoke combustion indoor mixed combustion, output high-temperature flue gas promotes turbine b generating, and the gas outlet of turbine b is even
Connecing waste heat boiler, the discharge outlet of waste heat boiler connects to water input system, the superheated steam pushing turbine of described waste heat boiler
Generating, the flue gas not utilized taking full advantage of steam generator system carries out combined cycle generation；The present invention is also by air vapour gas
Heat exchanger, synthesis gas vapour gas heat exchanger, vapor-water heat exchanger reclaim the heat that turbine a has not utilized, and utilize air-water heat exchanger to return
Receive to the amount of residual heat of water input system, utilize air-water heat exchanger, air vapour gas heat exchanger to preheat air, utilize steam-water heat exchanging
Device preheats to the water supply of water input system, utilizes synthesis gas vapour gas heat exchanger to preheat synthesis gas, substantially increases recuperation of heat
Efficiency；Waste heat boiler, the discharge outlet of steam turbine connect to water input system, described to water input system to steam generator system, waste heat
Boiler water supply, takes full advantage of waste heat boiler, the flue gas not utilized of steam turbine carries out combined cycle generation, greatly reduces
The discharge capacity of waste gas, transition heat efficiency losses is less, and the organic efficiency of heat is higher.
The water-cooling wall of annular is arranged on cyclone dust removal room by this steam generator system, and synthesis gas is in cyclone dust removal Indoor Combustion more
For fully, the temperature that burning produces is higher, relatively reduces thermal losses and improves heat exchanger effectiveness.This steam generator system reclaims
Origin of heat enters cyclone dust removal room in the high-temperature synthesis gas flue gas of refuse gasification outlet of still, synthesis gas flue gas, simultaneously to whirlwind
Tangential air-supplied combustion-supporting flammable synthesis gas in dirt pocket, flue gas sequentially passes through cyclone dust removal room, furnace chamber a, furnace chamber b, joint heat
Device and air preheater.Recycling economizer preheating condensed water, preheating condensed water enters boiler part, condensed water at water-cooling wall and
Heating in vaporizer, form saturated vapor and enter drum, after steam-water separation, saturated vapor enters superheater, is again thermally formed
Vapours exports, and is used for generating electricity.Present inventive concept is novel, utilizes cyclone-burning method, decreases fly ash content in flue gas；Synthesis
Gas firing temperature is high, and gas residence time is long, and pollutant are effectively decomposed, and reduces pollutant emission, it is achieved that rubbish is continuous
Synthesis gas burning disposal after gasification and heat recovery and utilization.
The gasification furnace of incinerator, incinerator are provided separately, and the vault of gasification furnace arranges the first exhanst gas outlet, incinerator
Vault the second exhanst gas outlet is set, be beneficial to process flue gas respectively according to the difference of flue gas quality, be conducive to flue gas is removed simultaneously
Dirt, it is provided that the flue gas of higher quality, the utilization rate making flue gas is higher, and the waste residue of discharge is less.
Second blower fan blasts air and provides First air for incinerator and provide homoiothermic to supply for cyclone separator, the first blower fan
Wind, by the second regulation valve regulation wind supply quantity on corresponding pipeline, makes incinerator residue fully burn；Then, the first blower fan is taken out
Take the flue gas of incinerator, after homoiothermic and cyclone collection flying dust, form the flue gas supply gasification furnace of certain pressure
First air and secondary wind, by the first regulation valve regulation wind supply quantity on corresponding pipeline, in making gasification furnace, rubbish produces gasification, gas
Change stove and be contained within the flue gas of a certain amount of synthesis gas, discharge from the first exhanst gas outlet, enter cyclone dust removal room processing links, the first wind
The unnecessary flue gas of machine extraction also simultaneously enters cyclone dust removal room, takes full advantage of the high-temperature flue gas that incinerator is discharged, and improves energy
The utilization rate of amount, cyclone dust removal room provides high-temperature flue gas.The stoker fired grate formula refuse gasification incinerator garbage treatment quantity of this structure
Greatly, the rubbish bed of material can experience dry, gasification and the stage that burns of residue on stoker fired grate, adapts to China's house refuse aqueous
The characteristics such as amount height, complicated component, improve the energy conversion efficiency in garbage processing procedure and reduce pollutant emission in flue gas
Amount, effectively prevents secondary pollution, and is capable of large-scale rubbish continuous gasification burning disposal, it is ensured that refuse gasification burns effect
Fruit and lime-ash clinker ignition loss, relatively reduce thermal losses and improve heat exchanger effectiveness, improve the thermal efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of electricity generation system；
Fig. 3 is the structural representation of steam generator system；
Fig. 4 is the structural representation of flue gas purification system；
Fig. 5 is the structural representation of cyclone dust removal room；
Fig. 6 is the schematic top plan view of Fig. 5；
Fig. 7 is the structural representation of incinerator；
Fig. 8 is the structural representation of circulation air feed system.
Reference
1 is incinerator, and 101 is grate, and 102 is feed hopper, and 103 is gasification furnace, and 104 is incinerator, and 105 is stove
Bed, 106 is garbage pusher device, and 107 is an air compartment, and 108 is windrow seal section, and 109 fall slag section for transition, and 110 push away for residue
Glassware, 111 is isolating door, and 112 is the first exhanst gas outlet, and 113 is the second exhanst gas outlet, and 114 is igniting combustion supporting hole, and 115 is two
Secondary for air port, 116 is slag notch, and 117 is the cinder notch that falls；
201 is dust arrester, and 202 is the first blower fan, and 203 is the second blower fan, and 204 is the first manifold, and 205 is the second discrimination
Pipe, 206 is the 3rd manifold, and 207 is the first regulation valve, and 208 is the second regulation valve, and 209 is the 3rd regulation valve；
3 is cyclone dust removal room, and 301 is dirt pocket igniting combustion supporting hole, and 302 is taper slag notch, and 303 is smoke inlet, 304
Being the 3rd exhanst gas outlet, 305 supply air port for combustion air；
4 is boiler body, and 402 is furnace chamber a, and 403 is furnace chamber b, and 404 is furnace chamber c, and 405 is water-cooling wall, and 406 is superheater,
407 is vaporizer, and 408 is drum, and 409 is the first down-comer, and 410 is the second down-comer, and 411 is steam turbine, and 412 is defeated for feedwater
Entering system, 413 is condenser, and 414 is water pump, and 415 is oxygen-eliminating device, and 416 is booster water pump, and 417 is moisturizing pipeline, and 418 is joint
Hot device, 419 is flue gas purification system, and 420 is aeration tower, and 421 is cleaner unit, and 422 is booster fan, and 423 is fine purifiation cleaner unit,
424 is air preheater.
5 is electricity generation system, and 501 is blender, and 502 is electromotor a, and 503 is low-pressure air compressor, and 504 is synthesis cigarette
Air pressure mechanism of qi, 505 is synthesis smoke combustion room, and 506 is turbine a, and 507 is waste heat boiler, and 508 is electromotor b, and 509 is whirlpool
Turbine b, 510 is air-water heat exchanger, and 511 is vapor-water heat exchanger, and 512 is air vapour gas heat exchanger, and 513 is synthesis gas vapour gas heat exchange
Device, 514 is pressure-air compressor.
Detailed description of the invention
See Fig. 1, the most real for the refuse gasification combustion gas of multi-stage heat exchanger and the one of steam turbine combined generating system
Executing example, including refuse gasification CIU, steam generator system, electricity generation system 5, described steam generator system has drum 408, superheater
406。
Seeing Fig. 2, described electricity generation system 5 includes blender 501, low-pressure air compressor 503, pressure-air compressor
514, synthesis flue gas compressor 504, synthesis smoke combustion room 505, turbine a506, turbine b509, steam turbine 411, generating
Machine a502, electromotor b508, waste heat boiler 507, air-water heat exchanger 510, vapor-water heat exchanger 511, air vapour gas heat exchanger 512,
Synthesis gas vapour gas heat exchanger 513 and give water input system 412, further, described low-pressure air compressor 503, high pressure are empty
Air pressure mechanism of qi 514, turbine a506, electromotor a502 power successively connect, and synchronous axial system；Described synthesis flue gas compressor
504, turbine b509, steam turbine 411, electromotor b508 power successively connect, and synchronous axial system.
The sidewall of described blender 501 is provided with the first entrance, the second entrance, and the bottom of described blender 501 is provided with out
The mouth of a river, the top of described blender 501 is provided with venthole, and the first entrance of described blender 501 connects the saturated vapor of drum
Outlet, the second entrance of described blender 501 connects the gas outlet of pressure-air compressor 514, described pressure-air compressor
The air inlet of 514 connects the gas outlet of low-pressure air compressor 503, the air inlet of described low-pressure air compressor 503 and air
Connection, the outlet of described blender 501 connects the water inlet of drum, and the venthole of described blender 501 connects superheater
Air intake, the venthole output high pressure superheated steam of described superheater, the venthole of described superheater connects turbine a506's
Air inlet, described turbine a506 is connected with electromotor a502 power, and high pressure superheated steam promotes turbine a506 generating, described
The air inlet of synthesis flue gas compressor 504 connects the Waste gas outlet of steam generator system, and the gas outlet of synthesis flue gas compressor 504 is defeated
Going out the high-pressure synthesis flue gas that steam generator system has not utilized, the air inlet of described synthesis smoke combustion room 505 connects synthesis cigarette respectively
The gas outlet of air pressure mechanism of qi 504, the venthole of superheater, by high pressure superheated steam and the input synthesis flue gas combustion of high-pressure synthesis flue gas
Burning mixed combustion in room 505, the gas outlet of synthesis smoke combustion room 505 connects the air inlet of turbine b509, described turbine
B509 is connected with electromotor b508 power, and high-temperature flue gas promotes turbine b509 generating, and the gas outlet of turbine b509 connects remaining
Heat boiler 507, the venthole of described waste heat boiler 507 connects steam turbine 411, described steam turbine 411 and electromotor b508 power
Connecting, the high pressure superheated steam pushing turbine 411 that waste heat boiler 507 is discharged generates electricity, the discharge outlet of described waste heat boiler 507,
The discharge outlet of steam turbine 411 connects respectively to the water inlet of water input system 412；
Being connected between the gas outlet of described turbine a506 with the water inlet giving water input system 412 has synthesis gas vapour gas to change
Hot device 513 add the passage of heat, air vapour gas heat exchanger 512 add the passage of heat, vapor-water heat exchanger 511 add the passage of heat, synthesis gas
Vapour gas heat exchanger 513 add the passage of heat, air vapour gas heat exchanger 512 add after passage of heat parallel connection again with vapor-water heat exchanger 511
Heating Tandem, is connected between the air inlet of described synthesis smoke combustion room 505 and the gas outlet of synthesis flue gas compressor 504
The heated passage of synthesis gas vapour gas heat exchanger 513, the second entrance of described blender 501 goes out with pressure-air compressor 514
The heated passage of air vapour gas heat exchanger 512, described low-pressure air compressor 503, pressure-air compressor is connected between QI KOU
Connect the heated passage of air-water heat exchanger 510 between 514, described be sequentially connected with air water heat exchange to water input system 412 outlet
After the heated passage adding the passage of heat, vapor-water heat exchanger 511 of device 510, steam generator system, waste heat boiler 507 are supplied water.
Further, described include being sequentially connected in series by pipeline to water input system 412 condenser 413, water pump 414,
Oxygen-eliminating device 415, booster water pump 416, the discharge outlet of described waste heat boiler 507 is connected to water pump 414, oxygen-eliminating device 415 by pipeline
Between, arrange between described water pump 414, oxygen-eliminating device 415 to the water inlet of water input system 412, to entering of water input system 412
The mouth of a river connects water source by moisturizing pipeline 417, and the water inlet of described condenser 413 connects the draining of steam turbine 411 by pipeline
Mouthful, the outlet of described booster water pump 416 is to the outlet of water input system 412.
Seeing Fig. 3, in the present embodiment, steam generator system includes that boiler body 4, described boiler body 4 have cyclone dust removal room
3, furnace chamber a402, furnace chamber b403, furnace chamber c404.
Seeing Fig. 5, Fig. 6, the lower end of described cyclone dust removal room 3 arranges smoke inlet 303, the cigarette of described cyclone dust removal room 3
Gas entrance 303 is connected with the first exhanst gas outlet 112 of gasification furnace 103 by pipeline, and upper end, cyclone dust removal room 3 is that the 3rd flue gas goes out
Mouth 304, described smoke inlet the 303, the 3rd exhanst gas outlet 304 is positioned at the opposition side of cyclone dust removal room 3 circumferential wall, cyclone dust removal room
The top of 3 arranges dirt pocket igniting combustion supporting hole 301.In order to make flue gas, combustion air be sufficiently mixed in cyclone dust removal room 3, burn
After discharge from the 3rd exhanst gas outlet 304, described cyclone dust removal room 3 is provided with some combustion airs for air port 305, described some combustion-supporting
Wind supplies air port 305 between smoke inlet the 303, the 3rd exhanst gas outlet 304.Described smoke inlet the 303, the 3rd exhanst gas outlet
304, combustion air is radially or tangentially arranged along cyclone dust removal room 3 circumferential wall for air port 305.3rd cigarette of upper end, cyclone dust removal room 3
Gas outlet 304 connects with the upper end of furnace chamber a402, described furnace chamber a402, the lower end connection of furnace chamber b403, described furnace chamber b403's
Upper end arranges waste gas outlet, and the lower end of described cyclone dust removal room 3 is provided with the taper slag notch 302 that radius from top to bottom diminishes, should
Taper slag notch 302 connects with the burner hearth of gasification furnace 103.It is provided with common slag notch below described furnace chamber a402, furnace chamber b403,
This common slag notch connects with the burner hearth of gasification furnace 103.In the present embodiment, this common slag notch and taper slag notch
302 all afterbody changeover portions with gasification furnace 103 burner hearth connect.
It is circumferentially with water-cooling wall 405 ringwise along inwall in described cyclone dust removal room 3, is provided with in described furnace chamber a402
Superheater 406, is provided with vaporizer 407 in furnace chamber b403, the top of boiler body 4 arranges drum 408, described cyclone dust removal room
3, furnace chamber a402, furnace chamber b403 are respectively positioned on below drum 408, and described drum 408 is provided with soda pop import, are used for inputting soda pop and mix
Compound, is provided with water separator in drum 408, is used for separating steam water interface, and drum 408 is by the first down-comer 409 even
The water inlet of water receiving cold wall 405, is used for exporting the isolated water of water separator, and drum 408 is by the second down-comer 410 even
Connect the water inlet of vaporizer 407, be used for exporting the isolated water of water separator, described water-cooling wall 405, vaporizer 407
Venthole connects the air intake of drum 408 respectively by steam pipe, is used for the high-temperature steam that refluxes, the saturated vapor of described drum 408
Export the air intake being connected superheater 406 by pipeline, for the high-temperature steam of backflow is inputted in superheater 406, described mistake
The venthole output superheated steam of hot device 406.
The upper end of described furnace chamber c404 connects with the waste gas outlet of furnace chamber b403 upper end, and the lower end of furnace chamber c404 arranges waste gas
Floss hole, is provided with economizer 418, the water inlet of described economizer 418 and the outlet of booster water pump 416 in described furnace chamber c404
Connection, the outlet of described economizer 418 and the soda pop inlet communication of drum 408.The Waste gas outlet of furnace chamber c404 connects cigarette
Gas cleaning system 419, sees Fig. 4, and described flue gas purification system 419 includes thick cleaning system, the booster fan being sequentially connected with
422, fine purifiation cleaner unit 423, the flue gas after purification feeds synthesis flue gas compressor.Described thick cleaning system includes aeration tower 420
With cleaner unit 421, described fine purifiation cleaner unit 423 uses Lei Shi venturi scrubbing system, divides including Venturi scrubber and whirlwind
From device, described aeration tower 420 connects the Waste gas outlet of furnace chamber c, and aeration tower 420 outlet connects cleaner unit 421, then by supercharging wind
Enter fine purifiation cleaner unit 423 after machine 422 supercharging and make deep purifying.
See Fig. 7, Fig. 8, include incinerator and circulation air feed system, gasification burning for refuse gasification CIU
Stove includes gasification furnace 103, incinerator 104, can seal or connect between gasification furnace 103 and incinerator 104, gasification furnace 103 stove
Bed lower section and incinerator 104 siege be respectively arranged below with two independent air compartments 107, described gasification furnace 103
Being respectively provided with secondary on face arch, rear arch and supply air port 115, the vault of described gasification furnace 103 arranges the first exhanst gas outlet 112, described
The vault of incinerator 104 arranges the second exhanst gas outlet 113.
Incinerator includes grate 101, and set gradually along feedstock direction on grate 101 feed hopper 102, gas
Changing stove 103 and incinerator 104, the rear of incinerator 104 is the slag notch 116 of incinerator 104, and described incinerator 104 is provided with
Fall cinder notch 117, and the slag notch 116 of described incinerator 104 is positioned at incinerator and falls the underface of cinder notch 117, described in the cinder notch 117 that falls lead to
Piping connects with the slag notch of dust arrester 201.This sealing structure is effective, can effectively hold minimizing pollutant discharge amount.
The carbon-containing part of rubbish is mainly gasified by gasification furnace 103, and discharges flammable gasification flue gas and rubbish residue, incinerator
104 burn processing being substantially carried out carbon residue, and discharge innoxious lime-ash.The siege 105 of gasification furnace 103 and incinerator 104 is equal
Using the stoker fired grate formula moving hearth 105 that segmentation independently drives, the fire grate of stoker fired grate formula moving hearth 105 is by travelling oven
Row's plate forward laps with fixed grate plate, collects alternately and forms, and adjacent many groups moving grate plate is connected by pull bar, adopts
Drive by a set of driving means.Stoker fired grate formula moving hearth 105 is as the carrier of conveying garbage, and its embodiment can be each
Type moving hearth 105, such as chain-plate type, drum-type, multisection type fire grate system etc..
Described grate 101 is provided with garbage pusher device 106, and described garbage pusher device 106 is positioned at the lower section of feed hopper 102,
For the rubbish in feed hopper 102 is pushed in gasification furnace 103, the lower section of gasification furnace 103 moving hearth 105 and incinerator
104 moving hearths 105 be respectively arranged below with at least one air compartment 107 being independently arranged, in the present embodiment, with gasification furnace
The fire grate of air compartment 107 correspondence of 103 first halfs, driving means, as the dryer section of gasification furnace 103 siege 105, with gasification
The latter half of fire grate of air compartment 107 correspondence of stove 103, driving means are as the gasification section of gasification furnace 103 siege 105.Gasification
The dryer section of stove 103 siege 105, gasification section can be respectively adopted 1-2 independent air compartment 107 air feed, it is also possible to respectively
Use 3-4 independent air compartment 107 air feed.Certainly, fire grate, driving means and an air compartment 107 also can not be correspondingly arranged,
Preferably on regulation moving hearth 105, the bed of material moves and air distribution relation.Incinerator 104 can use 1-4 independent First air
Room 107 air feed, burns rear lime-ash and gets rid of from slag notch, enter next step treatment process.
Being provided with windrow seal section 108 between described feed hopper 102, gasification furnace 103, garbage pusher device 106 work enters at position
In windrow seal section 108, garbage raw material is put into from feed hopper 102 and is fallen, and garbage pusher device 106 retreats, then advances, the most
Secondary pusher forms windrow at windrow seal section 108, makes gasification furnace 103 entrance be in windrow sealing state, strengthens gasification furnace 103 close
Envelope effect, solves garbage pusher device 106 and the easy leakage problem of feed hopper 102.When needing complete prepurging to dispose all rubbish,
Garbage pusher device 106 forward impelling half stroke again, is pushed completely into rubbish in gasification furnace 103, makes gasification furnace 103 entrance lose
Windrow sealing effectiveness.Leave transition in grate 101 part between described gasification furnace 103 and incinerator 104 to fall slag section 109, institute
State the transition slag section 109 that falls and be provided with residue pusher 110, for the rubbish residue fallen in gasification furnace 103 is pushed incinerator
In 104, the transition slag section 109 that falls can be at windrow sealing state when piling up rubbish residue, strengthens gasification furnace 103 sealing effectiveness,
Solve to go here and there between gasification furnace 103, incinerator 104 problem of wind.In the present embodiment, described transition falls, and be provided with in slag section 109 can
The isolating door 111 of opening and closing, described isolating door 111 is for cutting off gasification furnace 103, incinerator 104.The furnace lifting initial stage or need control
When altering wind between gasification furnace 103 processed and incinerator, close isolating door 111, stack a certain amount of residue when the slag section that falls and form windrow
After sealing, isolating door 111 can be kept to open, the residue pusher 110 arranged with lower section is coordinated to use, continuous to realize rubbish
Gasification burning processes.
The upper end of described gasification furnace 103, incinerator 104 upper end respectively in the shape that arches upward, the face arch of described gasification furnace 103 is
Flat construction, or, the face arch of gasification furnace 103 is that rear end is inclined upwardly structure.The vault of described gasification furnace 103 arranges the first cigarette
Gas outlet 112, the vault of described incinerator 104 arranges the second exhanst gas outlet 113, the arching upward of described gasification furnace 103 upper end, burns
It is respectively equipped with igniting combustion supporting hole 114 on the arching upward of stove 104 upper end.Gasification flue gas is from first exhanst gas outlet the 112, second exhanst gas outlet
113 get rid of, and gasification furnace 103 furnace cavity is compared with traditional incinerator, relatively reduced；Forward and backward arch and moving hearth 105
Position relatively diminishes, and decreases the space that incinerator takies, and is also easier to insulation, decreases the amount of leakage of heat, beneficially rubbish
Rubbish fully gasifies.Secondary it is respectively provided with for air port 115 on the face arch of described gasification furnace 103, rear arch.
Described circulation air feed system includes dust arrester the 201, first blower fan the 202, second blower fan 203, in the present embodiment, institute
Stating dust arrester 201 is cyclone separator or hot precipitator 421, and described first blower fan 202 is high-temperature blower, described second
Blower fan 203 is aerator.The inlet end of described dust arrester 201 is connected by pipeline and the second exhanst gas outlet 113, described dedusting
The outlet side of device 201 is connected by the inlet end of pipeline and the first blower fan 202, and the outlet side of described first blower fan 202 connects
The house steward of the first manifold 204, the arm of described first manifold 204 respectively with the lower section of gasification furnace 103 moving hearth each the most once
Each secondary on air compartment 107, gasification furnace 103 connects for the smoke inlet 303 of air port 115 and cyclone dust removal room 3, and described first
Being respectively provided with the first regulation valve 207 on each arm of manifold 204, the air inlet of described second blower fan 203 is with material pit air even
Logical, the foul smell distributed in can absorbing material pit, the gas outlet of described second blower fan 203 connects the house steward of the second manifold 205, institute
State the arm of the second manifold 205 respectively with incinerator 104 moving hearth below each air compartment 107 and dust arrester 201
Inlet end, outlet side connection, each arm of described second manifold 205 is respectively provided with the second regulation valve 208.Also include the 3rd
Manifold 206, the house steward of described 3rd manifold 206 connects with the gas outlet of the second blower fan 203, each of described 3rd manifold 206
Pipe connects for air port 305 with some combustion airs respectively, and each arm of the 3rd manifold 206 is respectively provided with the 3rd regulation valve 209.Institute
Being provided with air preheater 424 in stating furnace chamber c404, in the present embodiment, air preheater 424 is positioned at the downstream of economizer 418,
The outlet side of described second blower fan 203 connects the air inlet of air preheater 424, and the gas outlet of air preheater 424 connects the
The house steward of two manifolds 206, the described house steward of the 3rd manifold 206 connects with the gas outlet of air preheater 424.
Gasification furnace 103 First air is that the flue gas generation certain pressure of high-temperature blower extraction incinerator 104 blasts gasification furnace 103
In an air compartment 107 corresponding below stoker fired grate formula moving hearth 105, then sprayed by an air holes on moving hearth 105
It is shot through rubbish, gasifies, regulate wind supply quantity by the first regulation valve 207 on corresponding each arm.Gasification furnace 103 secondary wind
Be high-temperature blower extraction incinerator 104 flue gas produce certain pressure blast gasification furnace 103 burner hearth, its spray-hole is arranged on gasification
On stove 103 face arch and rear arch.Secondary it is provided with for air port 115, raising gasification efficiency, macromolecule in enhancing flue gas on forward and backward arch
Substance decomposition.Have igniting combustion supporting hole 114 on rear arch, furnace lifting, baker and in stablizing gasification furnace 103 temperature use, by correspondence
The first regulation valve 207 on each arm regulates wind supply quantity.The air inlet of described second blower fan 203 and material pit atmosphere, the
The air that two blower fans 203 blast can be cold wind or the hot blast after heating.The gas outlet of described second blower fan 203 connects the
The house steward of two manifolds 205, the arm of described second manifold 205 respectively with incinerator 104 moving hearth 105 below each First air
Room 107 and the inlet end of dust arrester 201, outlet side connection, each arm of described second manifold 205 is respectively provided with second
Regulation valve 208.Incinerator 104 First air is that the air of certain pressure is blasted stoker fired grate formula moving hearth 105 times by aerator
In the air compartment 107 that side is corresponding, then by an air holes spray penetration residue on moving hearth 105, carry out residual burning,
Wind supply quantity is regulated by the first regulation valve 207 on corresponding each arm.The inlet end of dust arrester 201, the air intake of outlet side are
Homoiothermic air feed, homoiothermic air feed is that the air of certain pressure is blasted incinerator 104 and exports (i.e. cyclone inlet) by aerator
Carrying out homoiothermic, meanwhile, Cyclone outlet (i.e. high-temperature blower entrance) blasts further homoiothermic, by corresponding each arm
First regulation valve 207 regulates wind supply quantity.
Circulation air feed system to the waste disposal method after stoker fired grate formula refuse gasification incinerator air feed, the method by with
Lower step is carried out:
Step A, closedown stoker fired grate formula refuse gasification incinerator 1 and the gate of atmospheric vent, start machinery grate-type rubbish
Rubbish incinerator 1, puts into feed hopper 102 by garbage raw material, and garbage pusher device 106 pusher back and forth will be from feed hopper 102
The garbage raw material fallen pushes the windrow seal section 108 between feed hopper 102, gasification furnace 103, makes windrow seal section 108 be formed
Windrow sealing state, unnecessary rubbish falls into the moving hearth 105 of gasification furnace 103, and the moving hearth 105 of gasification furnace 103 works,
Rubbish being conveyed into transition fall slag section 109, residue pusher 110 pusher back and forth, rubbish transition fallen in slag section 109 pushes away
Entering in incinerator 104, the moving hearth 105 of incinerator 104 works conveying garbage, until rubbish is at gasification furnace 103, incinerator
The moving hearth 105 of 104 is accumulated to required thickness: 0.6-0.8m, during baker, the rubbish piled up can protect mobile stove
Bed 105, prevents scaling loss siege 105.Stopping feeding intake to feed hopper 102, the moving hearth 105 of gasification furnace 103 and incinerator 104 stops
Only work, then, with start-up burner by the igniting combustion supporting hole 114 of gasification furnace 103 and incinerator 104 respectively with gasification furnace
103 and the burner hearth of incinerator 104 communicate, under the effect of start-up burner, gasification furnace 103 and incinerator 104 are carried out furnace lifting,
Baker, treats that this process stabilization completes, and makes gasification furnace 103 and incinerator 104 burner hearth reach predetermined temperature 600-700 DEG C；Baker
Purpose be the Natural Water in order to remove in lining and water of crystallization, in order to avoid rising too fast when going into operation due to furnace temperature, moisture content is a large amount of
Expansion causes body of heater spalling, bubbling or deforms even furnace wall and collapse, and affects intensity and the service life of heating furnace furnace wall.
Step B, startup regulation circulation air feed system 2, regulation gasification furnace 103, incinerator 104 and circulation air feed system 2
Technological parameter (pusher speed, fire grate speed, pathogenic wind-warm, blast and air quantity, secondary air temperature, blast and air quantity, furnace temperature,
Negative pressure, thickness of feed layer etc. in stove), feed intake to feed hopper 102, the moving hearth 105 of gasification furnace 103 works conveying garbage, rubbish
Proceeding by burning in the burner hearth of gasification furnace 103, rubbish residue is piled up formation windrow at transition falls slag section 109 and is sealed, and makes
The stove chamber inner combustion state temperature of gasification furnace 103 is stabilized to more than 850 DEG C, the moving hearth 105 work output combustion of incinerator 104
Rubbish residue after cinder.
Each technological parameter (pusher speed of step C, regulation gasification furnace 103, incinerator 104 and circulation air feed system 2
Negative pressure, thickness of feed layer in degree, fire grate speed, pathogenic wind-warm, blast and air quantity, secondary air temperature, blast and air quantity, furnace temperature, stove
Deng), rubbish is gradually gasified by gasification furnace 103, and gasification temperature is stable between 700-800 DEG C, makes the stable product of gasification furnace 103
The raw high-temperature flue gas containing 10%-20% synthesis gas, it is equal that gasification furnace 103 vaporized state stably carries out low temperature, middle temperature or high-temperature gasification
Can.Make incinerator 104 fired state temperature stabilization to more than 850 DEG C, it is achieved rubbish continuous gasification burning disposal；Need to regulate simultaneously
Each technological parameter of cyclone dust removal room 3, makes cyclone dust removal room 3 the 3rd exhanst gas outlet 304 temperature stabilization to more than 850 DEG C.
Step D, need to overhaul or during blowing out, stop feeding intake, regulation gasification furnace 103, incinerator 104 and circulation air feed system
The technological parameter of 2, makes gasification furnace 103 be gradually restored to fired state, after rubbish and rubbish residue burn, closes stoker fired grate
Formula refuse gasification incinerator 1 and circulation air feed system 2.Each technological parameter of cyclone dust removal room 3 need to be regulated simultaneously, make gasification furnace
103 are gradually restored to fired state.
Finally illustrate, preferred embodiment above only in order to technical scheme to be described and unrestricted, although logical
Cross above preferred embodiment the present invention to be described in detail, it is to be understood by those skilled in the art that can be
In form and it is made various change, without departing from claims of the present invention limited range in details.
Claims (10)
1. the refuse gasification combustion gas of multi-stage heat exchanger and a steam turbine combined generating system, including refuse gasification CIU,
Steam generator system, electricity generation system, described steam generator system has drum, superheater, it is characterised in that: described electricity generation system includes mixing
Device, low-pressure air compressor, pressure-air compressor, synthesis flue gas compressor, synthesis smoke combustion room, turbine a, turbine
B, steam turbine, electromotor a, electromotor b, waste heat boiler, air-water heat exchanger, vapor-water heat exchanger, air vapour gas heat exchanger, synthesis gas
Vapour gas heat exchanger and give water input system, the sidewall of described blender is provided with the first entrance, the second entrance, described blender
Bottom be provided with outlet, the top of described blender is provided with venthole, and the first entrance of described blender connects the full of drum
And steam (vapor) outlet, the second entrance of described blender connects the gas outlet of pressure-air compressor, described pressure-air compressor
Air inlet connect low-pressure air compressor gas outlet, the air inlet of described low-pressure air compressor and atmosphere, described
The outlet of blender connects the water inlet of drum, and the venthole of described blender connects the air intake of superheater, described overheated
The venthole output high pressure superheated steam of device, the venthole of described superheater connects the air inlet of turbine a, described turbine a
Being connected with electromotor a power, high pressure superheated steam promotes turbine a generating, and the air inlet of described synthesis flue gas compressor connects
The Waste gas outlet of steam generator system, the high-pressure synthesis cigarette that the gas outlet output steam generator system of synthesis flue gas compressor has not utilized
Gas, the air inlet of described synthesis smoke combustion room connects the synthesis gas outlet of flue gas compressor, the venthole of superheater respectively, will
High pressure superheated steam and the input synthesis smoke combustion indoor mixed combustion of high-pressure synthesis flue gas, the gas outlet of synthesis smoke combustion room
Connecting the air inlet of turbine b, described turbine b is connected with electromotor b power, and high-temperature flue gas promotes turbine b generating, turbine
The gas outlet of machine b connects waste heat boiler, and the venthole of described waste heat boiler connects steam turbine, and described steam turbine is moved with electromotor b
Power connects, the high pressure superheated steam pushing turbine generating that waste heat boiler is discharged, the discharge outlet of described waste heat boiler, steam turbine
Discharge outlet connects respectively to the water inlet of water input system；
It is connected between the gas outlet of described turbine a with the water inlet giving water input system and has the heating of synthesis gas vapour gas heat exchanger
Passage, air vapour gas heat exchanger add the passage of heat, vapor-water heat exchanger add the passage of heat, the heating of synthesis gas vapour gas heat exchanger lead to
Road, air vapour gas heat exchanger add after passage of heat parallel connection again with the heating Tandem of vapor-water heat exchanger, described synthesis flue gas fires
Burn the heated passage being connected synthesis gas vapour gas heat exchanger between the air inlet of room and the gas outlet of synthesis flue gas compressor, described mixed
The heated passage of air vapour gas heat exchanger it is connected between second entrance and the gas outlet of pressure-air compressor of clutch, described low
Pressure connects the heated passage of air-water heat exchanger between air compressor, pressure-air compressor, described to water input system water outlet
Steam generator system, waste heat boiler are supplied water after being sequentially connected with the heated passage adding the passage of heat, vapor-water heat exchanger of air-water heat exchanger by mouth.
The refuse gasification combustion gas of a kind of multi-stage heat exchanger the most according to claim 1 and steam turbine combined generating system, its
Be characterised by: described include being sequentially connected in series by pipeline to water input system condenser, water pump, oxygen-eliminating device, booster water pump, institute
The discharge outlet stating waste heat boiler is connected between water pump, oxygen-eliminating device by pipeline, arranges feedwater defeated between described water pump, oxygen-eliminating device
Entering the water inlet of system, connect water source to the water inlet of water input system by moisturizing pipeline, the water inlet of described condenser leads to
Piping connects the discharge outlet of steam turbine, and the outlet of described booster water pump is to the outlet of water input system.
The refuse gasification combustion gas of a kind of multi-stage heat exchanger the most according to claim 1 and steam turbine combined generating system, its
It is characterised by: described low-pressure air compressor, pressure-air compressor, turbine a, electromotor a power successively connect, and synchronize
Rotate；Described synthesis flue gas compressor, turbine b, steam turbine, electromotor b power successively connect, and synchronous axial system.
The refuse gasification combustion gas of a kind of multi-stage heat exchanger the most according to claim 1 and steam turbine combined generating system, its
It is characterised by: described steam generator system includes that boiler body, described boiler body have cyclone dust removal room, furnace chamber a, furnace chamber b, described
The lower end of cyclone dust removal room arranges smoke inlet, and the smoke inlet of cyclone dust removal room is connected with refuse gasification CIU, whirlwind
Dirt pocket upper end is the 3rd exhanst gas outlet, and the 3rd exhanst gas outlet of upper end, cyclone dust removal room connects with the upper end of furnace chamber a, described stove
Room a, the lower end connection of furnace chamber b, the upper end of described furnace chamber b arranges waste gas outlet, described cyclone dust removal indoor circumferentially arranged with in
The water-cooling wall of annular, is provided with described superheater, is provided with vaporizer in furnace chamber b in described furnace chamber a, the top of boiler body
Arranging described drum, described cyclone dust removal room, furnace chamber a, furnace chamber b are respectively positioned on below drum, and described drum is provided with soda pop and enters
Mouthful, it being provided with water separator in drum, be used for separating steam water interface, drum connects entering of water-cooling wall by the first down-comer
The mouth of a river, is used for exporting the isolated water of water separator, and drum connects the water inlet of vaporizer by the second down-comer, is used for
The output isolated water of water separator, described water-cooling wall, the venthole of vaporizer connect entering of drum by steam pipe respectively
Steam ports, is used for the high-temperature steam that refluxes.
The refuse gasification combustion gas of a kind of multi-stage heat exchanger the most according to claim 4 and steam turbine combined generating system, its
Being characterised by: described boiler body has furnace chamber c, the upper end of described furnace chamber c connects with the waste gas outlet of furnace chamber b upper end, furnace chamber c
Lower end Waste gas outlet is set, the Waste gas outlet of described furnace chamber c connects flue gas purification system, described flue gas purification system bag
Include be sequentially connected with thick cleaning system, booster fan, fine purifiation cleaner unit, flue gas after purification feeds synthesis flue gas compressor.
The refuse gasification combustion gas of a kind of multi-stage heat exchanger the most according to claim 5 and steam turbine combined generating system, its
Being characterised by: described thick cleaning system includes aeration tower and cleaner unit, described fine purifiation cleaner unit uses Lei Shi Venturi scrubbing system
System, including Venturi scrubber and cyclone separator, described aeration tower connects the Waste gas outlet of furnace chamber c, and aeration tower outlet is even
Connect cleaner unit, then made deep purifying by entering fine purifiation cleaner unit after booster fan supercharging.
The refuse gasification combustion gas of a kind of multi-stage heat exchanger the most according to claim 5 and steam turbine combined generating system, its
Being characterised by: be provided with economizer in described furnace chamber c, the water inlet of described economizer connects with to the outlet of water input system,
The outlet of described economizer and the soda pop inlet communication of drum.
The refuse gasification combustion gas of a kind of multi-stage heat exchanger the most according to claim 5 and steam turbine combined generating system, its
It is characterised by: described refuse gasification CIU includes incinerator, circulation air feed system, and described incinerator includes stove
Frame, and feed hopper, gasification furnace and the incinerator set gradually along feedstock direction on grate, the rear of gasification furnace is gasification furnace
The cinder notch that falls, incinerator is positioned at gasification furnace and falls the front lower place of cinder notch, and the rear of incinerator is the slag notch of incinerator, described grate
Being provided with garbage pusher device, described garbage pusher device is positioned at the lower section of feed hopper, for the rubbish in feed hopper is pushed gasification
In stove, be respectively arranged below with that at least one is independently arranged the one of the lower section of gasification furnace moving hearth and incinerator moving hearth
Secondary air compartment, is provided with windrow seal section between described feed hopper, gasification furnace, in the grate part between described gasification furnace and incinerator
Leaving transition to fall slag section, the described transition slag section that falls is provided with residue pusher, for being pushed away by the rubbish residue fallen in gasification furnace
Entering in incinerator, described transition falls and is provided with isolating door to be opened/closed in slag section, and described isolating door is for by gasification furnace, incinerator
Cut off；Described gasification furnace, incinerator include furnace shell, moving hearth respectively, and the forward and backward side of described gasification furnace is close by windrow respectively
Envelope section, the transition slag section that falls seals, and described transition falls slag section isolation gasification furnace, incinerator, makes gasification furnace, incinerator separate；
Described gasification furnace, incinerator, respectively in the shape that arches upward, the face arch of described gasification furnace, rear arch are respectively provided with secondary and supply air port, described
The vault of gasification furnace arranges the first exhanst gas outlet, the smoke inlet of described cyclone dust removal room and the connection of the first exhanst gas outlet, described
The vault of incinerator arranges the second exhanst gas outlet, and described gasification furnace, incinerator are respectively equipped with igniting combustion supporting hole；
Described circulation air feed system includes dust arrester, the first blower fan, the second blower fan, and the inlet end of described dust arrester is by pipe
Road and the second exhanst gas outlet connect, and the outlet side of described dust arrester is connected by the inlet end of pipeline and the first blower fan, described
The outlet side of the first blower fan connects the house steward of the first manifold, the arm of described first manifold respectively with under gasification furnace moving hearth
Each secondary on each air compartment, a gasification furnace of side is for the smoke inlet connection of air port and cyclone dust removal room, described first discrimination
The first regulation valve it is respectively provided with on each arm of pipe, the air inlet of described second blower fan and atmosphere, described second blower fan
Gas outlet connects the house steward of the second manifold, the arm of described second manifold respectively with incinerator moving hearth below each First air
Room and the inlet end of dust arrester, outlet side connection, each arm of described second manifold is respectively provided with the second regulation valve, institute
Stating cyclone dust removal room and be provided with some combustion airs confession air port, described some combustion airs are positioned at smoke inlet, the 3rd flue gas for air port
Between outlet, also include that the 3rd manifold, the described house steward of the 3rd manifold connect with the gas outlet of the second blower fan, described 3rd manifold
Each arm connect for air port with some combustion airs respectively, each arm of the 3rd manifold is respectively provided with the 3rd and regulates valve.
The refuse gasification combustion gas of a kind of multi-stage heat exchanger the most according to claim 8 and steam turbine combined generating system, its
Being characterised by: be provided with common slag notch below described furnace chamber a, furnace chamber b, the lower end of described cyclone dust removal room is provided with from top to bottom
The taper slag notch that radius diminishes, this common slag notch, taper slag notch connect with the burner hearth of gasification furnace respectively.
The refuse gasification combustion gas of a kind of multi-stage heat exchanger the most according to claim 8 and steam turbine combined generating system, its
Being characterised by: be provided with air preheater in described furnace chamber c, the outlet side of described second blower fan connects the air inlet of air preheater
Mouthful, the gas outlet of air preheater connects the house steward of the second manifold.
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| CN109539216A (en) * | 2018-12-18 | 2019-03-29 | 华北电力大学 | A kind of combined generating system of integrated garbage burning boiler and coal-burning boiler |
| CN110966618A (en) * | 2019-12-26 | 2020-04-07 | 杭州新世纪能源环保工程股份有限公司 | Steam and flue gas heat exchange device adopting three-stage heat exchange |
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