CN106224036B - A kind of refuse gasification combustion gas of multi-stage heat exchanger and steam turbine combined generating system - Google Patents
A kind of refuse gasification combustion gas of multi-stage heat exchanger and steam turbine combined generating system Download PDFInfo
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- CN106224036B CN106224036B CN201610801203.XA CN201610801203A CN106224036B CN 106224036 B CN106224036 B CN 106224036B CN 201610801203 A CN201610801203 A CN 201610801203A CN 106224036 B CN106224036 B CN 106224036B
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- 238000002309 gasification Methods 0.000 title claims abstract description 165
- 239000000567 combustion gas Substances 0.000 title claims abstract description 20
- 239000007789 gas Substances 0.000 claims abstract description 146
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 146
- 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 77
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 74
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 71
- 238000002485 combustion reaction Methods 0.000 claims abstract description 45
- 239000000779 smoke Substances 0.000 claims abstract description 33
- 239000002918 waste heat Substances 0.000 claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 29
- 230000005611 electricity Effects 0.000 claims abstract description 26
- 239000000428 dust Substances 0.000 claims description 68
- 239000002893 slag Substances 0.000 claims description 41
- 230000007704 transition Effects 0.000 claims description 21
- 239000002912 waste gas Substances 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 16
- 238000005273 aeration Methods 0.000 claims description 10
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241000628997 Flos Species 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 a kind of refuse gasification combustion gas of multi-stage heat exchanger and steam turbine combined generating system, 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, generator a, generator b, waste heat boiler.The gas outlet of the turbine a and the heating passage to the heating passage, the heating passage of air vapour gas heat exchanger, vapor-water heat exchanger that synthesis gas vapour gas heat exchanger is connected between the water inlet of water input system.The heated passage of air-water heat exchanger is connected between the low-pressure air compressor, pressure-air compressor.Refuse gasification combustion gas and steam turbine combined generating system using this multi-stage heat exchanger, large-scale rubbish continuous gasification processing, garbage treatment quantity are bigger, and the organic efficiency of heat is high, can efficiently reduce pollutant emission.
Description
Technical field
The invention belongs to solid waste incineration Treatment and recovery processing technology field, more particularly 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..It is conventional in garbage disposal
In technology, burning disposal has reduced training substantially, and innoxious thorough, occupation of land amount is small, and waste heat energy is utilized, and secondary pollution is few
The advantages of, meet the strategic requirement of China's sustainable development.But with continuous improvement both at home and abroad to environmental requirement, 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 use all kinds of incineration technologies especially for domestic rubbish, gasification burning technology widely industrialize by
The technological innovation of domestic garbage disposal industry is brought to regenerate.
For many years, scientific research of the China to the gasification burning technology such as biomass, rubbish, be in progress a lot of, the base in laboratory
Plinth research is a lot, also has application study, such as：Rotary kiln type, vertical and fluidized bed type destructive gasifying or temperature gasification and high melting skill
Art etc..But Technique Popularizing is applied upper or there is a definite limitation, raw material type, garbage treatment quantity, secondary pollution control and economy
Benefit etc. is principal element.
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, uses mechanical backstepping fire grate, forwards fire grate or combined fire grate wherein having in body of heater, also adopts
With fire grates such as chain-plate type and drum-types.In boiler plant, boiler recovery heat methods are a lot of, technology maturation；Thermal source kind
Class is also more, such as：The thermals source such as solar energy, smelting furnace waste heat, coal furnace, fluid bed, fixed bed, rotary kiln, heat is reclaimed using boiler
Amount, for generating electricity, heat supply, heating etc..
In summary, typical gasification burning and boiler plant technology maturation, respectively there is its own advantage, but actual in China
The problem of needing to solve in and deficiency：
1. for characteristics such as China's house refuse water content height, complicated components, the technology of moving hearth is used, to rubbish
Conveying capacity needs emphasis to consider.Fly ash content is higher in flue gas burn simultaneously after, and collecting ash is heavier, deashing repair and maintenance
Cycle is short.
2. with being on the increase for refuse production, sanitary fill such as mountain, garbage treatment quantity must be effectively improved,
It can just meet the market requirement.
3. in face of strict pollutant emission requirement, secondary pollution control is the technical key problem for needing to solve.
4. in order to effectively increase economic efficiency, in rubbish heat treatment process, the organic efficiency of heat needs to improve.It is existing
Rubbish heat treatment technics generally using boiler reclaim waste incineration after high-temperature flue gas heat, produce steam shift onto steam turbine hair
Electricity, whole transition heat efficiency losses are larger, handle identical quantity of refuse, relative reduction thermal losses and raising heat exchanger effectiveness can
To improve the thermal efficiency.
For example 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 its progress control method (ZL 200880007113.7), double-fuel combustion-supporting type gas-steam combined cycle system
System (ZL 200610062631.1), coal powder gas turbine generation system and the process for producing coal powder two-phase flow fuel
(ZL200610062055.0), multiple row sectional drive combined type domestic garbage incinerator (ZL200710092508.9) and two-part
All referred in waste incinerator (ZL201010268376.2) to the problem of：Rubbish heat treatment mode method is not bound with, and
The secondary pollution control of rubbish heat treatment, the problems such as smoke components are complicated；It is anti-to aoxidize that conventional garbage is heat-treated thermal chemical reaction
Based on answering, reduction reaction auxiliary is also easy to produce secondary pollution, and burned oxygen quotient is big, and First air, Secondary Air infeed amount are big,
Dust content is higher in flue gas, larger on heat reclaiming system and smoke processing system influence, and easy dust stratification, exhaust gas volumn is larger,
Relative reduction thermal conversion efficiency；The deep purifying problem of synthesis flue gas is, it is necessary to synthesize flue gas cleannes after refuse gasification is burned
Meet gas turbine requirement, and refuse gasification burning-gas and steam turbine combined cycle generation application；Rubbish is heat-treated
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.
The content of the invention
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of transition heat efficiency losses are smaller, heat
Organic efficiency is higher, the refuse gasification combustion gas of the lower multi-stage heat exchanger of pollutant emission and steam turbine combined generating system.
The object of the present invention is achieved like this：
A kind of refuse gasification combustion gas of multi-stage heat exchanger and steam turbine combined generating system, including refuse gasification burn system
System, steam generator system, electricity generation system, the steam generator system have drum, superheater, and the 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, generator a, generator b, waste heat boiler, air-water heat exchanger, vapor-water heat exchanger, air vapour gas heat exchanger, synthesis gas vapour gas are changed
Hot device and to water input system, the side wall of the blender is provided with first entrance, second entrance, the bottom of the blender
Provided with delivery port, the top of the blender is provided with venthole, and the first entrance of the blender connects the saturated vapor of drum
Outlet, the second entrance of the blender connects the gas outlet of pressure-air compressor, the air inlet of the pressure-air compressor
The gas outlet of mouth connection low-pressure air compressor, the air inlet and atmosphere of the low-pressure air compressor, the blender
Delivery port connect the water inlet of drum, the venthole of the blender connects the air intake of superheater, and the superheater goes out
Steam ports exports high pressure superheated steam, the venthole connection turbine a of superheater air inlet, the turbine a and generating
Machine a power connectors, high pressure superheated steam promotes turbine a to generate electricity, the air inlet connection boiler system of the synthesis flue gas compressor
The Waste gas outlet of system, the gas outlet of synthesis flue gas compressor exports the high-pressure synthesis flue gas that steam generator system has not been utilized, described
The air inlet of synthesis smoke combustion room connects the gas outlet of synthesis flue gas compressor, the venthole of superheater respectively, and height is pressed through
Vapours and mixed combustion in high-pressure synthesis flue gas input synthesis smoke combustion room, the gas outlet connection whirlpool of synthesis smoke combustion room
Turbine b air inlet, the turbine b and generator b power connectors, high-temperature flue gas promote turbine b to generate electricity, turbine b's
Gas outlet connects waste heat boiler, and the venthole connection steam turbine of the waste heat boiler, the steam turbine connects with generator b power
Connect, the high pressure superheated steam pushing turbine of waste heat boiler discharge generates electricity, the discharge outlet of the waste heat boiler, the draining of steam turbine
Mouth connects the water inlet to water input system respectively；
The gas outlet of the turbine a and to being connected with synthesis gas vapour gas heat exchanger between the water inlet of water input system
Heat heating passage, the heating passage of vapor-water heat exchanger, the heating of synthesis gas vapour gas heat exchanger of passage, air vapour gas heat exchanger
Heating Tandem after passage, the heating passage parallel connection of air vapour gas heat exchanger again with vapor-water heat exchanger, the synthesis flue gas
The heated passage of synthesis gas vapour gas heat exchanger is connected between the air inlet of combustion chamber and the gas outlet for synthesizing flue gas compressor, it is described
The heated passage of air vapour gas heat exchanger is connected between the second entrance of blender and the gas outlet of pressure-air compressor, it is described
The heated passage of air-water heat exchanger is connected between low-pressure air compressor, pressure-air compressor, it is described to go out to water input system
The mouth of a river is supplied steam generator system, waste heat boiler after being sequentially connected the heating passage of air-water heat exchanger, the heated passage of vapor-water heat exchanger
Water.
Further, it is described to include the condenser being sequentially connected in series by pipeline, water pump, oxygen-eliminating device, increasing to water input system
Water pump, the discharge outlet of the waste heat boiler is connected between water pump, oxygen-eliminating device by pipeline, between the water pump, oxygen-eliminating device
Water inlet to water input system is set, and the water inlet to water input system connects water source, the condenser by moisturizing pipeline
Water inlet the discharge outlet of steam turbine is connected by pipeline, the delivery port of the booster water pump is the water outlet to water input system
Mouthful.
Steam output device can not be all converted to water by condenser using complete steam, and absorb the heat of steam release
Amount, the main function of oxygen-eliminating device is exactly that the oxygen and other gases in boiler feedwater are removed with it, it is ensured that the quality of feedwater, is increased
Water pump can improve hydraulic pressure, it is ensured that, can be to steam turbine, waste heat pot to water input system to the water supply capacity of water input system
The water that fire grate goes out carries out further heat recovery, improves heat recovery efficiency.
Further, power connects successively by the low-pressure air compressor, pressure-air compressor, turbine a, generator a
Connect, and synchronous axial system；The synthesis flue gas compressor, turbine b, steam turbine, generator b power connectors, and synchronously turning successively
It is dynamic.
Further, the steam generator system includes boiler body, and the boiler body has cyclone dust removal room, furnace chamber a, stove
Room b, the lower end of the cyclone dust removal room sets smoke inlet, and smoke inlet and the refuse gasification CIU of cyclone dust removal room connect
Connect, cyclone dust removal room upper end is the 3rd exhanst gas outlet, the 3rd exhanst gas outlet of cyclone dust removal room upper end connects with furnace chamber a upper end
It is logical, the furnace chamber a, furnace chamber b lower end connection, the upper end of the furnace chamber b was set in waste gas outlet, the cyclone dust removal room along week
To provided with water-cooling wall in a ring, it is provided with the furnace chamber a in described superheater, furnace chamber b and is provided with evaporator, boiler sheet
The top of body sets described drum, and the cyclone dust removal room, furnace chamber a, furnace chamber b are respectively positioned on below drum, set on the drum
Have and water separator is provided with carbonated drink import, drum, for separating steam water interface, drum connects water by the first down-comer
The water inlet of cold wall, for exporting the water that water separator is isolated, drum connects entering for evaporator by the second down-comer
The mouth of a river, for exporting the water that water separator is isolated, the water-cooling wall, the venthole of evaporator are connected by steam pipe respectively
The air intake of drum, for the high-temperature steam that flows back.
In order to which the flue gas discharged to furnace chamber c carries out harmless treatment, it is preferable that the boiler body has furnace chamber c, described
Furnace chamber c upper end is connected with the waste gas outlet of furnace chamber b upper ends, and furnace chamber c lower end sets Waste gas outlet, and the furnace chamber c's is useless
Gas floss hole connects flue gas purification system, and the flue gas purification system includes thick cleaning system, booster fan, the essence being sequentially connected
Deduster is washed, the flue gas after purification feeds synthesis flue gas compressor.
Preferably, the thick cleaning system includes aeration tower and deduster, and the fine purifiation deduster uses Lei Shi venturi
Washing system, including Venturi scrubber and cyclone separator, the Waste gas outlet of the aeration tower connection furnace chamber c, aeration tower
Outlet connection deduster, then by booster fan be pressurized after into fine purifiation deduster make deep purifying.
Thick cleaning system can remove the impurity of big particle diameter, dust, and fine purifiation deduster can remove steam, micro mist dirt etc.,
Gas turbine is met to the requirement of combustion gas cleannes.
In order to which the flue gas discharged to furnace chamber b carries out further heat recovery, heat recovery efficiency is improved, further
Economizer is provided with ground, the furnace chamber c, the water inlet of the economizer is connected with the delivery port to water input system, the section
The delivery port of hot device and the carbonated drink inlet communication of drum.
Further, the refuse gasification CIU includes incinerator, circulation air feed system, the gasification burning
Stove includes grate, and feed hopper, gasification furnace and the incinerator set gradually on grate along feedstock direction, the rear of gasification furnace
For the cinder notch that falls of gasification furnace, incinerator is located at the front lower place that gasification furnace falls cinder notch, and the rear of incinerator is the slag notch of incinerator,
The grate is provided with garbage pusher device, and the garbage pusher device is located at the lower section of feed hopper, for by the rubbish in feed hopper
It is pushed into gasification furnace, the lower section of gasification furnace moving hearth and incinerator moving hearth are respectively arranged below with least one independence
The air compartment set, is provided with windrow seal section, the stove between the gasification furnace and incinerator between the feed hopper, gasification furnace
Transition is left on frame part and falls slag section, the transition falls slag section and is provided with residue pusher, for the rubbish that will be fallen in gasification furnace
In rubbish residue push-in incinerator, the transition, which falls, is provided with isolating door to be opened/closed in slag section, the isolating door is used for will gasification
Stove, incinerator cut-off；The gasification furnace, incinerator include furnace shell, moving hearth respectively, and the forward and backward side of the gasification furnace distinguishes
Slag section sealing is fallen by windrow seal section, transition, the transition falls slag section isolation gasification furnace, incinerator, makes gasification furnace, incinerator
It is separate；The gasification furnace, incinerator set secondary confession respectively respectively in arching upward shape on the face arch of the gasification furnace, rear arch
Air port, the vault of the gasification furnace sets the first exhanst gas outlet, the smoke inlet and the first exhanst gas outlet of the cyclone dust removal room
Connection, the vault of the incinerator is set is respectively equipped with igniting combustion supporting hole on the second exhanst gas outlet, the gasification furnace, incinerator；
The circulation air feed system includes dust arrester, the first blower fan, the second blower fan, and the inlet end of the dust arrester leads to
Piping is connected with the second exhanst gas outlet, and the outlet side of the dust arrester is connected by pipeline with the inlet end of the first blower fan,
The outlet side of first blower fan connects the house steward of the first manifold, the branch pipe of first manifold respectively with gasification furnace moving hearth
Each air compartment of lower section, each secondary air feed mouthful on gasification furnace and the smoke inlet connection of cyclone dust removal room, described the
First regulating valve, the air inlet and atmosphere of second blower fan, second wind are set respectively on each branch pipe of one manifold
The gas outlet of machine connects the house steward of the second manifold, the branch pipe of second manifold respectively with each one below incinerator moving hearth
The second regulation is set respectively on the inlet end of secondary air compartment and dust arrester, outlet side connection, each branch pipe of second manifold
Valve, the cyclone dust removal room is provided with some combustion air air feeds mouthful, and some combustion air air feeds mouthful are located at smoke inlet, the 3rd
Between exhanst gas outlet, in addition to the 3rd manifold, the house steward of the 3rd manifold connects with the gas outlet of the second blower fan, and the described 3rd
Each branch pipe of manifold is connected with some combustion air air feeds mouthful respectively, and the 3rd regulating valve is set respectively on each branch pipe of the 3rd manifold.
For the waste residue for discharging furnace chamber a, furnace chamber b, flue gas deposition is produced in cyclone dust removal room, and prevent waste residue effusion generation
Pollution, it is preferable that common slag notch is provided with below the furnace chamber a, furnace chamber b, the lower end of the cyclone dust removal room is provided with from upper
The taper slag notch diminished to lower radius, the common slag notch, taper slag notch are connected with the burner hearth of gasification furnace respectively.
In order to which the flue gas discharged to furnace chamber b carries out further heat recovery, heat recovery efficiency is improved, it is preferable that
Air preheater is provided with the furnace chamber c, the outlet side of 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.
By adopting the above-described technical solution, the present invention has the advantages that：
Pressure-air, the saturated vapor of drum output exported present invention employs blender to air compressor is mixed
Close, high pressure superheated steam is exported after superheater, high pressure superheated steam promotes turbine a to generate electricity, the present invention is using synthesis flue gas
The high-pressure synthesis flue gas that compressor output steam generator system has not been utilized, the high pressure superheated steam and high-pressure synthesis cigarette of superheater output
Mixed combustion in gas input synthesis smoke combustion room, output high-temperature flue gas promotes turbine b to generate electricity, and turbine b gas outlet connects
Waste heat boiler is connect, the discharge outlet of waste heat boiler is connected to water input system, the superheated steam pushing turbine of the waste heat boiler
Generate electricity, take full advantage of steam generator system does not carry out combined cycle generation using complete flue gas；The present invention also passes through air vapour gas
Heat exchanger, synthesis gas vapour gas heat exchanger, vapor-water heat exchanger reclaim the heat that turbine a has not been utilized, are returned using air-water heat exchanger
The amount of residual heat to water input system is received, using air-water heat exchanger, air vapour gas heat exchanger pre-add hot-air, steam-water heat exchanging is utilized
Device preheats the water supply to water input system, using synthesis gas vapour gas heat exchanger pre-add hot synthesis gas, substantially increases recuperation of heat
Efficiency；Waste heat boiler, the discharge outlet of steam turbine are connected to water input system, it is described to water input system to steam generator system, waste heat
Boiler water supply, takes full advantage of waste heat boiler, steam turbine and does not carry out combined cycle generation using complete flue gas, greatly reduce
The discharge capacity of waste gas, transition heat efficiency losses are smaller, and the organic efficiency of heat is higher.
This steam generator system by annular water-cooling wall be arranged on cyclone dust removal room on, synthesis gas in cyclone dust removal Indoor Combustion more
To be abundant, the temperature produced of burning is higher, relatively reduces thermal losses and improves heat exchanger effectiveness.What this steam generator system was reclaimed
Origin of heat is in the high-temperature synthesis gas flue gas of refuse gasification outlet of still, and synthesis gas flue gas enters cyclone dust removal room, while 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, section heat
Device and air preheater.Recycle the pre- hot condensed water of economizer, pre- hot condensed water enters boiler part, condensed water in water-cooling wall and
Heated in evaporator, formation saturated vapor enters saturated vapor after drum, steam-water separation and enters superheater, is thermally formed again
Vapours is exported, for generating electricity.Present inventive concept is novel, using cyclone-burning method, reduces fly ash content in flue gas；Synthesis
Gas ignition temperature is high, and gas residence time is long, and pollutant is effectively decomposed, and reduces pollutant emission, realizes rubbish continuous
Synthesis gas burning disposal and heat recovery and utilization after gasification.
Gasification furnace, the incinerator of incinerator are provided separately, and the vault of gasification furnace sets the first exhanst gas outlet, incinerator
Vault set the second exhanst gas outlet, beneficial to according to flue gas quality difference handle flue gas respectively, while being conducive to removing flue gas
Dirt, can provide the flue gas of higher quality, make the utilization rate of flue gas higher, and the waste residue of discharge is less.
Second blower fan blasts air and provides First air for incinerator and provide temperature adjustment confession for cyclone separator, the first blower fan
Wind, by the second regulation valve regulation wind supply quantity on correspondence pipeline, makes incinerator residue fully burn；Then, the first blower fan is taken out
The flue gas of incinerator is taken, after temperature adjustment and cyclone collection flying dust, the flue gas supply gasification furnace of certain pressure is formed
First air and Secondary Air, by the first regulation valve regulation wind supply quantity on correspondence pipeline, make rubbish in gasification furnace produce gasification, gas
Change the flue gas for containing a certain amount of synthesis gas in stove, from the discharge of the first exhanst gas outlet, into cyclone dust removal room processing links, the first wind
The unnecessary flue gas that machine is extracted also enters cyclone dust removal room simultaneously, takes full advantage of the high-temperature flue gas of incinerator discharge, 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 undergo the stage that burns of drying, gasification and residue on stoker fired grate, and adaptation China house refuse is aqueous
The characteristics such as height, complicated component are measured, pollutant emission in the energy conversion efficiency and reduction flue gas in garbage processing procedure is improved
Amount, effectively prevents secondary pollution, and can realize large-scale rubbish continuous gasification burning disposal, it is ensured that refuse gasification burns effect
Fruit and lime-ash clinker ignition loss, it is relative to reduce thermal losses and improve heat exchanger effectiveness, improve the thermal efficiency.
Brief description of the drawings
Fig. 1 is structural representation of the 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 Fig. 5 schematic top plan view；
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 be grate, and 102 be feed hopper, and 103 be gasification furnace, and 104 be incinerator, and 105 be stove
Bed, 106 be garbage pusher device, and 107 be an air compartment, and 108 be windrow seal section, and 109 be that transition falls slag section, and 110 push away for residue
Glassware, 111 be isolating door, and 112 be the first exhanst gas outlet, and 113 be the second exhanst gas outlet, and 114 be igniting combustion supporting hole, and 115 be two
Secondary air feed mouthful, 116 be slag notch, and 117 be to fall cinder notch；
201 be dust arrester, and 202 be the first blower fan, and 203 be the second blower fan, and 204 be the first manifold, and 205 be the second discrimination
Pipe, 206 be the 3rd manifold, and 207 be the first regulating valve, and 208 be the second regulating valve, and 209 be the 3rd regulating valve；
3 be cyclone dust removal room, and 301 be dirt pocket igniting combustion supporting hole, and 302 be taper slag notch, and 303 be smoke inlet, 304
It is combustion air air feed mouthful for the 3rd exhanst gas outlet, 305；
4 be boiler body, and 402 be furnace chamber a, and 403 be furnace chamber b, and 404 be furnace chamber c, and 405 be water-cooling wall, and 406 be superheater,
407 be evaporator, and 408 be drum, and 409 be the first down-comer, and 410 be the second down-comer, and 411 be steam turbine, and 412 is defeated to feed water
Enter system, 413 be condenser, and 414 be water pump, and 415 be oxygen-eliminating device, and 416 be booster water pump, and 417 be moisturizing pipeline, and 418 be section
Hot device, 419 be flue gas purification system, and 420 be aeration tower, and 421 be deduster, and 422 be booster fan, and 423 be fine purifiation deduster,
424 be air preheater.
5 be electricity generation system, and 501 be blender, and 502 be generator a, and 503 be low-pressure air compressor, and 504 be synthesis cigarette
Air pressure mechanism of qi, 505 be synthesis smoke combustion room, and 506 be turbine a, and 507 be waste heat boiler, and 508 be generator b, and 509 be whirlpool
Turbine b, 510 be air-water heat exchanger, and 511 be vapor-water heat exchanger, and 512 be air vapour gas heat exchanger, and 513 be that synthesis gas vapour gas exchanges heat
Device, 514 be pressure-air compressor.
Embodiment
Referring to Fig. 1, be multi-stage heat exchanger refuse gasification combustion gas and steam turbine combined generating system it is a kind of preferably real
Example, including refuse gasification CIU, steam generator system, electricity generation system 5 are applied, the steam generator system has drum 408, superheater
406。
Referring to Fig. 2, the electricity generation system 5 includes blender 501, low-pressure air compressor 503, pressure-air compressor
514th, synthesis flue gas compressor 504, synthesis smoke combustion room 505, turbine a506, turbine b509, steam turbine 411, generating
Machine a502, generator 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 to water input system 412, further, the low-pressure air compressor 503, high pressure are empty
Air pressure mechanism of qi 514, turbine a506, generator a502 power connectors, and synchronous axial system successively；The synthesis flue gas compressor
504th, turbine b509, steam turbine 411, generator b508 power connectors, and synchronous axial system successively.
The side wall of the blender 501 is provided with first entrance, second entrance, and the bottom of the blender 501 is provided with out
The mouth of a river, the top of the blender 501 is provided with venthole, and the first entrance of the blender 501 connects the saturated vapor of drum
Outlet, the gas outlet of the second entrance connection pressure-air compressor 514 of the blender 501, the pressure-air compressor
The gas outlet of 514 air inlet connection low-pressure air compressor 503, the air inlet and air of the low-pressure air compressor 503
Connection, the delivery port of the blender 501 connects the water inlet of drum, the venthole connection superheater of the blender 501
Air intake, the venthole output high pressure superheated steam of the superheater, the venthole connection turbine a506's of the superheater
Air inlet, the turbine a506 and generator a502 power connectors, high pressure superheated steam promotes turbine a506 to generate electricity, described
The air inlet for synthesizing 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
Go out the high-pressure synthesis flue gas that steam generator system has not been utilized, the air inlet of the 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
Burn mixed combustion in room 505, the gas outlet connection turbine b509 of synthesis smoke combustion room 505 air inlet, the turbine
B509 and generator b508 power connectors, high-temperature flue gas promote turbine b509 to generate electricity, and turbine b509 gas outlet connection is remaining
Heat boiler 507, the venthole connection steam turbine 411 of the waste heat boiler 507, the steam turbine 411 and generator b508 power
Connection, the high pressure superheated steam pushing turbine 411 that waste heat boiler 507 is discharged generates electricity, the discharge outlet of the waste heat boiler 507,
The discharge outlet of steam turbine 411 connects the water inlet to water input system 412 respectively；
Synthesis gas vapour gas is connected between the gas outlet of the turbine a506 and the water inlet to water input system 412 to change
The heating passage of hot device 513, heating passage, the heating passage of vapor-water heat exchanger 511, synthesis gas of air vapour gas heat exchanger 512
After the heating passage of vapour gas heat exchanger 513, the heating passage of air vapour gas heat exchanger 512 are in parallel again with vapor-water heat exchanger 511
Tandem is heated, is connected between the air inlet of the 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 the blender 501 and going out for pressure-air compressor 514
The heated passage of air vapour gas heat exchanger 512, the low-pressure air compressor 503, pressure-air compressor are connected between gas port
The heated passage of air-water heat exchanger 510 is connected between 514, it is described to be sequentially connected air water heat exchange to the delivery port of water input system 412
Steam generator system, waste heat boiler 507 are supplied water after the heating passage of device 510, the heated passage of vapor-water heat exchanger 511.
Further, it is described to water input system 412 include be sequentially connected in series by pipeline condenser 413, water pump 414,
Oxygen-eliminating device 415, booster water pump 416, the discharge outlet of the waste heat boiler 507 are connected to water pump 414, oxygen-eliminating device 415 by pipeline
Between, the water inlet to water input system 412 is set between the water pump 414, oxygen-eliminating device 415, to entering for water input system 412
The mouth of a river connects water source by moisturizing pipeline 417, and the water inlet of the condenser 413 connects the draining of steam turbine 411 by pipeline
Mouthful, the delivery port of the booster water pump 416 is the delivery port to water input system 412.
Referring to Fig. 3, in the present embodiment, steam generator system includes boiler body 4, and the boiler body 4 has cyclone dust removal room
3rd, furnace chamber a402, furnace chamber b403, furnace chamber c404.
Referring to Fig. 5, Fig. 6, the lower end of the cyclone dust removal room 3 sets smoke inlet 303, the cigarette of the cyclone dust removal room 3
Gas entrance 303 is connected by pipeline with the first exhanst gas outlet 112 of gasification furnace 103, and the upper end of cyclone dust removal room 3 is that the 3rd flue gas goes out
Mouth 304, the smoke inlet 303, the 3rd exhanst gas outlet 304 are located at the opposite side of the circumferential wall of cyclone dust removal room 3, cyclone dust removal room
3 top sets dirt pocket igniting combustion supporting hole 301.In order that flue gas, combustion air are sufficiently mixed in cyclone dust removal room 3, burnt
Discharged afterwards from the 3rd exhanst gas outlet 304, the cyclone dust removal room 3 is described some combustion-supporting provided with some combustion air air feeds mouthful 305
Wind air feed mouthful 305 is located between smoke inlet 303, the 3rd exhanst gas outlet 304.The smoke inlet 303, the 3rd exhanst gas outlet
304th, combustion air air feed mouthful 305 is radially or tangentially set along the circumferential wall of cyclone dust removal room 3.3rd cigarette of the upper end of cyclone dust removal room 3
Gas outlet 304 is connected with furnace chamber a402 upper end, the furnace chamber a402, furnace chamber b403 lower end connection, the furnace chamber b403's
Upper end sets waste gas outlet, and the lower end of the cyclone dust removal room 3, should provided with the taper slag notch 302 that radius diminishes from top to bottom
Taper slag notch 302 is connected with the burner hearth of gasification furnace 103.Common slag notch is provided with below the furnace chamber a402, furnace chamber b403,
The common slag notch is connected with the burner hearth of gasification furnace 103.In the present embodiment, the common slag notch and taper slag notch
The 302 afterbody changeover portion with the burner hearth of gasification furnace 103 is connected.
It is provided with the interior water-cooling wall 405 being circumferentially with along inwall in a ring in the cyclone dust removal room 3, the furnace chamber a402
Evaporator 407 is provided with superheater 406, furnace chamber b403, the top of boiler body 4 sets drum 408, the cyclone dust removal room
3rd, furnace chamber a402, furnace chamber b403 are respectively positioned on the lower section of drum 408, and the drum 408 is provided with carbonated drink import, are mixed for inputting carbonated drink
Water separator is provided with compound, drum 408, for separating steam water interface, drum 408 is connected by the first down-comer 409
The water inlet of water receiving cold wall 405, for exporting the water that water separator is isolated, drum 408 is connected by the second down-comer 410
The water inlet of evaporator 407 is connect, for exporting the water that water separator is isolated, the water-cooling wall 405, evaporator 407
Venthole connects the air intake of drum 408 by steam pipe respectively, for the high-temperature steam that flows back, the saturated vapor of the drum 408
The air intake that superheater 406 is connected by pipeline is exported, for the high-temperature steam of backflow to be inputted in superheater 406, the mistake
The venthole output superheated steam of hot device 406.
The upper end of the furnace chamber c404 is connected with the waste gas outlet of furnace chamber b403 upper ends, and furnace chamber c404 lower end sets waste gas
Economizer 418, the water inlet of the economizer 418 and the delivery port of booster water pump 416 are provided with floss hole, the furnace chamber c404
Connection, the delivery port of the economizer 418 and the carbonated drink inlet communication of drum 408.Furnace chamber c404 Waste gas outlet connection cigarette
Gas cleaning system 419, referring to Fig. 4, the flue gas purification system 419 includes thick cleaning system, the booster fan being sequentially connected
422nd, fine purifiation deduster 423, the flue gas after purification feeds synthesis flue gas compressor.The thick cleaning system includes aeration tower 420
With deduster 421, the fine purifiation deduster 423 uses Lei Shi venturi scrubbing systems, including Venturi scrubber and whirlwind point
From device, the Waste gas outlet of the connection furnace chamber of aeration tower 420 c, the outlet of aeration tower 420 connects deduster 421, then by supercharging wind
Machine 422 makees deep purifying after being pressurized into fine purifiation deduster 423.
It is that refuse gasification CIU includes incinerator and its circulation air feed system, gasification burning referring to Fig. 7, Fig. 8
Stove includes gasification furnace 103, incinerator 104, can seal or connect between gasification furnace 103 and incinerator 104, the stove of gasification furnace 103
The lower section of bed and the siege of incinerator 104 are respectively arranged below with two independent air compartments 107, the gasification furnace 103
Secondary air feed mouthful 115 is set respectively on face arch, rear arch, and the vault of the gasification furnace 103 sets the first exhanst gas outlet 112, described
The vault of incinerator 104 sets the second exhanst gas outlet 113.
Incinerator includes grate 101, and feed hopper 102, the gas set gradually on grate 101 along feedstock direction
Change stove 103 and incinerator 104, the rear of incinerator 104 is the slag notch 116 of incinerator 104, and the incinerator 104 is provided with
Fall cinder notch 117, the slag notch 116 of the incinerator 104 is located at the underface that incinerator falls cinder notch 117, it is described fall cinder notch 117 lead to
Piping is connected with the slag notch of dust arrester 201.This sealing structure effect is good, can effectively hold reduction pollutant discharge amount.
Gasification furnace 103 is mainly to gasify to the carbon-containing part of rubbish, and discharges flammable gasification flue gas and rubbish residue, incinerator
104 are substantially carried out the burning processing of 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 of the independent driving of segmentation, the fire grate of stoker fired grate formula moving hearth 105 is by travelling oven
Row plate forward lapped with fixed grate plate, it is spaced collect form, adjacent multigroup moving grate plate is connected by pull bar, is adopted
Driven with a set of drive device.Stoker fired grate formula moving hearth 105 is as the carrier of conveying garbage, and embodiments thereof can be each
Type moving hearth 105, such as chain-plate type, drum-type, multisection type fire grate system.
The grate 101 is provided with garbage pusher device 106, and the garbage pusher device 106 is located at the lower section of feed hopper 102,
For the rubbish in feed hopper 102 to be pushed into gasification furnace 103, the lower section of the moving hearth 105 of gasification furnace 103 and incinerator
104 moving hearths 105 are respectively arranged below with least one air compartment 107 being independently arranged, the present embodiment, with gasification furnace
The corresponding fire grate of an air compartment 107 of 103 first halfs, drive device, as the dryer section of the siege 105 of gasification furnace 103, with gasification
The latter half of corresponding fire grate of an air compartment 107 of stove 103, drive device as the siege 105 of gasification furnace 103 gasification section.Gasification
The 1-2 independent air feeds of air compartment 107 can be respectively adopted in dryer section, the gasification section of the siege 105 of stove 103, can also distinguish
Using the 3-4 independent air feeds of air compartment 107.Certainly, fire grate, drive device and an air compartment 107 can not be also correspondingly arranged,
Preferably adjust bed of material movement and air distribution relation on moving hearth 105.Incinerator 104 can be using 1-4 independent First airs
The air feed of room 107, burns rear lime-ash and is excluded from slag notch, into next step treatment process.
Windrow seal section 108 is provided between the feed hopper 102, gasification furnace 103, the work of garbage pusher device 106 is entered to be located in place
In in windrow seal section 108, garbage raw material is put into from feed hopper 102 and fallen, and garbage pusher device 106 is retreated, then is promoted, reciprocal many
Secondary pusher makes the entrance of gasification furnace 103 be in windrow sealing state in the formation windrow of windrow seal section 108, and enhancing gasification furnace 103 is close
Effect is sealed, garbage pusher device 106 and the easy leakage problem of feed hopper 102 is solved.When needing the complete prepurging to dispose all rubbish,
The forward impelling half stroke again of garbage pusher device 106, rubbish is pushed completely into gasification furnace 103, the entrance of gasification furnace 103 is lost
Windrow sealing effectiveness.Transition is left on the part of grate 101 between the gasification furnace 103 and incinerator 104 and falls slag section 109, institute
State transition and fall slag section and 109 be provided with residue pusher 110, the rubbish residue for will be fallen in gasification furnace 103 is pushed into incinerator
In 104, transition falls slag section 109 and can be at windrow sealing state when accumulating rubbish residue, strengthens the sealing effectiveness of gasification furnace 103,
The problem of solving string wind between gasification furnace 103, incinerator 104.In the present embodiment, the transition falls in slag section 109 that be provided with can
The isolating door 111 of opening and closing, the isolating door 111 is used to separate gasification furnace 103, incinerator 104.Furnace lifting initial stage or need control
When altering wind between gasification furnace 103 and incinerator processed, isolating door 111 is closed, a certain amount of residue formation windrow is stacked when falling slag section
After sealing, isolating door 111 can be kept to open, coordinate to use with the residue pusher 110 that lower section is set, to realize that rubbish is continuous
Gasification burning processing.
The upper end of the gasification furnace 103, the upper end of incinerator 104 are respectively in the shape that arches upward, and the face arch of the gasification furnace 103 is
Flat construction, or, the face arch of gasification furnace 103 is inclined upwardly structure for rear end.The vault of the gasification furnace 103 sets the first cigarette
Gas outlet 112, the vault of the incinerator 104 sets the second exhanst gas outlet 113, and the upper end of gasification furnace 103 is arched upward, burnt
Igniting combustion supporting hole 114 is respectively equipped with the arching upward of the upper end of stove 104.Flue gas gasify from the first exhanst gas outlet 112, the second exhanst gas outlet
113 exclude, and the furnace cavity of gasification furnace 103 is relatively reduced compared with traditional waste incinerator；Forward and backward arch and moving hearth 105
Relative position diminishes, and reduces the space of incinerator occupancy, is also easier to insulation, reduces the amount of leakage of heat, be conducive to rubbish
Rubbish fully gasifies.Secondary air feed mouthful 115 is set respectively on the face arch of the gasification furnace 103, rear arch.
The circulation air feed system is included in dust arrester 201, the first blower fan 202, the second blower fan 203, the present embodiment, institute
Dust arrester 201 is stated for cyclone separator or hot precipitator 421, first blower fan 202 is high-temperature blower, described second
Blower fan 203 is air blower.The inlet end of the dust arrester 201 is connected by pipeline with the second exhanst gas outlet 113, the dedusting
The outlet side of device 201 is connected by pipeline with the inlet end of the first blower fan 202, the outlet side connection of first blower fan 202
The house steward of first manifold 204, the branch pipe of first manifold 204 respectively with the lower section of the moving hearth of gasification furnace 103 it is each once
The smoke inlet 303 of each secondary air feed mouthful 115 and cyclone dust removal room 3 on air compartment 107, gasification furnace 103 is connected, and described first
First regulating valve 207 is set respectively on each branch pipe of manifold 204, and air inlet and the material pit air of second blower fan 203 connect
It is logical, the foul smell distributed in material pit can be absorbed, the gas outlet of second blower fan 203 connects the house steward of the second manifold 205, institute
State the branch pipe of the second manifold 205 respectively with each air compartment 107 and dust arrester 201 below the moving hearth of incinerator 104
Inlet end, outlet side connection, the second regulating valve 208 is set respectively on each branch pipe of second manifold 205.Also include the 3rd
Manifold 206, the house steward of the 3rd manifold 206 connects with the gas outlet of the second blower fan 203, each of the 3rd manifold 206
Pipe is connected with some combustion air air feeds mouthful 305 respectively, and the 3rd regulating valve 209 is set respectively on each branch pipe of the 3rd manifold 206.Institute
State in furnace chamber c404 and be provided with air preheater 424, the present embodiment, air preheater 424 is located at the downstream of economizer 418,
The outlet side of second blower fan 203 connects the air inlet of air preheater 424, the gas outlet connection of air preheater 424 the
The house steward of two manifolds 206, the house steward of the 3rd manifold 206 connects with the gas outlet of air preheater 424.
The First air of gasification furnace 103 is that the flue gas generation certain pressure of high-temperature blower extraction incinerator 104 blasts gasification furnace 103
In the corresponding air compartment 107 in the lower section of stoker fired grate formula moving hearth 105, then pass through the air holes spray on moving hearth 105
Rubbish is shot through, is gasified, wind supply quantity is adjusted by the first regulating valve 207 on each branch pipe of correspondence.The Secondary Air of gasification furnace 103
Be high-temperature blower extract incinerator 104 flue gas produce certain pressure blast the burner hearth of gasification furnace 103, its spray-hole is arranged on gasification
On the face arch of stove 103 and rear arch.Secondary air feed mouthful 115 is provided with forward and backward arch, macromolecule in gasification efficiency, enhancing flue gas is improved
Substance decomposition.Temperature in igniting combustion supporting hole 114, furnace lifting, baker and stable gasification furnace 103 is provided with rear arch to use, and passes through correspondence
The first regulating valve 207 regulation wind supply quantity on each branch pipe.The air inlet of second blower fan 203 and material pit atmosphere, the
The air that two blower fans 203 are blasted can be cold wind or the hot blast after heating.The gas outlet connection the of second blower fan 203
The house steward of two manifolds 205, each First air of the branch pipe of second manifold 205 respectively with the lower section of 104 moving hearth of incinerator 105
Second is set respectively on the inlet end of room 107 and dust arrester 201, outlet side connection, each branch pipe of second manifold 205
Regulating valve 208.The First air of incinerator 104 is that air blower blasts the air of certain pressure under stoker fired grate formula moving hearth 105
In the corresponding air compartment 107 in side, then by an air holes spray penetration residue on moving hearth 105, residual burning is carried out,
Wind supply quantity is adjusted by the first regulating valve 207 on each branch pipe of correspondence.The inlet end of dust arrester 201, the air intake of outlet side are
Temperature adjustment air feed, temperature adjustment air feed is that the air of certain pressure is blasted incinerator 104 and exported (i.e. cyclone inlet) by air blower
Temperature adjustment is carried out, meanwhile, Cyclone outlet (i.e. high-temperature blower entrance) blasts further temperature adjustment, by each branch pipe of correspondence
First regulating valve 207 adjusts wind supply quantity.
Air feed system is circulated to the waste disposal method after stoker fired grate formula refuse gasification incinerator air feed, this method press with
Lower step is carried out：
Step A, the gate for closing stoker fired grate formula refuse gasification incinerator 1 and atmospheric vent, start mechanical grate-type rubbish
Rubbish incinerator 1, puts into feed hopper 102, the pusher back and forth of garbage pusher device 106 will be from feed hopper 102 by garbage raw material
The garbage raw material fallen is pushed into the windrow seal section 108 between feed hopper 102, gasification furnace 103, forms windrow seal section 108
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 is conveyed into transition and falls slag section 109, transition is fallen the rubbish in slag section 109 and pushed away by the pusher back and forth of residue pusher 110
Enter in incinerator 104, the work conveying garbage of moving hearth 105 of incinerator 104, until rubbish is in gasification furnace 103, incinerator
104 moving hearth 105 is accumulated to required thickness：0.6-0.8m, during baker, the rubbish accumulated can protect mobile stove
Bed 105, prevents scaling loss siege 105.Stop 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, in the presence of start-up burner, gasification furnace 103 and incinerator 104 are carried out furnace lifting,
Baker, treats that this process stabilization is completed, gasification furnace 103 and the burner hearth of incinerator 104 is reached 600-700 DEG C of predetermined temperature；Baker
Purpose be in order to remove the Natural Water and the crystallization water in lining, in order to avoid when going into operation due to furnace temperature rise it is too fast, moisture content is a large amount of
Expansion causes body of heater spalling, bubbling or deformation even furnace wall to collapse, and influences the intensity and 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, wind-warm syndrome, blast and air quantity, secondary air temperature, blast and air quantity, furnace temperature,
Negative pressure, thickness of feed layer etc. in stove), fed intake to feed hopper 102, the work conveying garbage of moving hearth 105 of gasification furnace 103, rubbish
Burning is proceeded by the burner hearth of gasification furnace 103, rubbish residue falls in transition to be accumulated to form windrow sealing at slag section 109, is made
The stove chamber inner combustion state temperature of gasification furnace 103 is stabilized to more than 850 DEG C, the work output combustion of moving hearth 105 of incinerator 104
Rubbish residue after cinder.
Step C, regulation gasification furnace 103, incinerator 104 and each technological parameter (the pusher speed for circulating air feed system 2
Degree, fire grate speed, wind-warm syndrome, blast and air quantity, secondary air temperature, blast and air quantity, furnace temperature, negative pressure, thickness of feed layer in stove
Deng), gasification furnace 103 gradually gasifies to rubbish, and gasification temperature is stable between 700-800 DEG C, makes the stable production of gasification furnace 103
The high-temperature flue gas of the raw synthesis gas containing 10%-20%, the stable progress low temperature of the vaporized state of gasification furnace 103, middle temperature or high-temperature gasification are equal
Can.Make the fired state temperature stabilization of incinerator 104 to more than 850 DEG C, realize rubbish continuous gasification burning disposal；It need to adjust simultaneously
Each technological parameter of cyclone dust removal room 3, makes the temperature stabilization of the 3rd exhanst gas outlet of cyclone dust removal room 3 304 to more than 850 DEG C.
It step D, need to overhaul or during blowing out, stop feeding intake, regulation gasification furnace 103, incinerator 104 and circulation air feed system
2 technological parameter, makes gasification furnace 103 be gradually restored to fired state, after rubbish and rubbish residue are burnt, and 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 adjusted simultaneously, make gasification furnace
103 are gradually restored to fired state.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
Cross above preferred embodiment the present invention is described in detail, it is to be understood by those skilled in the art that can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (10)
1. refuse gasification combustion gas and the steam turbine combined generating system of a kind of multi-stage heat exchanger, including refuse gasification CIU,
Steam generator system, electricity generation system, the steam generator system have drum, superheater, it is characterised in that：The 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, generator a, generator b, waste heat boiler, air-water heat exchanger, vapor-water heat exchanger, air vapour gas heat exchanger, synthesis gas
Vapour gas heat exchanger and to water input system, the side wall of the blender is provided with first entrance, second entrance, the blender
Bottom be provided with delivery port, the top of the blender is provided with venthole, the first entrance connection drum of the blender it is full
And steam (vapor) outlet, the gas outlet of the second entrance connection pressure-air compressor of the blender, the pressure-air compressor
Air inlet connect low-pressure air compressor gas outlet, the air inlet and atmosphere of the low-pressure air compressor are described
The delivery port of blender connects the water inlet of drum, and the venthole of the blender connects the air intake of superheater, the overheat
The venthole output high pressure superheated steam of device, the venthole connection turbine a of superheater air inlet, the turbine a
With generator a power connectors, high pressure superheated steam promotes turbine a to generate electricity, the air inlet connection of the synthesis flue gas compressor
The Waste gas outlet of steam generator system, the gas outlet of synthesis flue gas compressor exports the high-pressure synthesis cigarette that steam generator system has not been utilized
Gas, the air inlet of the synthesis smoke combustion room connects the gas outlet of synthesis flue gas compressor, the venthole of superheater respectively, will
High pressure superheated steam and mixed combustion, the gas outlet of synthesis smoke combustion room in high-pressure synthesis flue gas input synthesis smoke combustion room
Turbine b air inlet, the turbine b and generator b power connectors are connected, high-temperature flue gas promotes turbine b to generate electricity, turbine
Machine b gas outlet connection waste heat boiler, the venthole connection steam turbine of the waste heat boiler, the steam turbine is moved with generator b
Power is connected, the high pressure superheated steam pushing turbine of waste heat boiler discharge generates electricity, the discharge outlet of the waste heat boiler, steam turbine
Discharge outlet connects the water inlet to water input system respectively；
The gas outlet of the turbine a and to the heating that synthesis gas vapour gas heat exchanger is connected between the water inlet of water input system
Heating passage, the heating passage of vapor-water heat exchanger of passage, air vapour gas heat exchanger, the heating of synthesis gas vapour gas heat exchanger are led to
Heating Tandem after road, the heating passage parallel connection of air vapour gas heat exchanger again with vapor-water heat exchanger, the synthesis flue gas combustion
The heated passage that synthesis gas vapour gas heat exchanger is connected between the air inlet of room and the gas outlet of synthesis flue gas compressor is burnt, it is described mixed
The heated passage of air vapour gas heat exchanger is connected between the second entrance of clutch and the gas outlet of pressure-air compressor, it is described low
The heated passage that air-water heat exchanger is connected between air compressor, pressure-air compressor is pressed, it is described to give water input system water outlet
Mouth supplies water after being sequentially connected the heating passage of air-water heat exchanger, the heated passage of vapor-water heat exchanger to steam generator system, waste heat boiler.
2. refuse gasification combustion gas and the steam turbine combined generating system of a kind of multi-stage heat exchanger according to claim 1, its
It is characterised by：Condenser, water pump, oxygen-eliminating device, the booster water pump for including being sequentially connected in series by pipeline to water input system, institute
The discharge outlet for stating waste heat boiler is connected between water pump, oxygen-eliminating device by pipeline, sets feedwater defeated between the water pump, oxygen-eliminating device
Enter the water inlet of system, the water inlet to water input system connects water source by moisturizing pipeline, and the water inlet of the condenser leads to
Piping connects the discharge outlet of steam turbine, and the delivery port of the booster water pump is the delivery port to water input system.
3. refuse gasification combustion gas and the steam turbine combined generating system of a kind of multi-stage heat exchanger according to claim 1, its
It is characterised by：The low-pressure air compressor, pressure-air compressor, turbine a, generator a power connectors, and synchronously successively
Rotate；The synthesis flue gas compressor, turbine b, steam turbine, generator b power connectors, and synchronous axial system successively.
4. refuse gasification combustion gas and the steam turbine combined generating system of a kind of multi-stage heat exchanger according to claim 1, its
It is characterised by：The steam generator system includes boiler body, and the boiler body has cyclone dust removal room, furnace chamber a, furnace chamber b, described
The lower end of cyclone dust removal room sets 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 cyclone dust removal room upper end is connected with furnace chamber a upper end, the stove
Room a, furnace chamber b lower end connection, the upper end of the furnace chamber b set in waste gas outlet, the cyclone dust removal room circumferentially arranged with
It is provided with the water-cooling wall of annular, the furnace chamber a in described superheater, furnace chamber b and is provided with evaporator, the top of boiler body
Described drum is set, and the cyclone dust removal room, furnace chamber a, furnace chamber b are respectively positioned on below drum, and the drum enters provided with carbonated drink
Mouthful, water separator is provided with drum, for separating steam water interface, drum connects entering for water-cooling wall by the first down-comer
The mouth of a river, for exporting the water that water separator is isolated, drum is connected the water inlet of evaporator by the second down-comer, is used for
The water that output water separator is isolated, the water-cooling wall, the venthole of evaporator connect entering for drum by steam pipe respectively
Steam ports, for the high-temperature steam that flows back.
5. refuse gasification combustion gas and the steam turbine combined generating system of a kind of multi-stage heat exchanger according to claim 4, its
It is characterised by：The upper end that the boiler body has furnace chamber c, the furnace chamber c is connected with the waste gas outlet of furnace chamber b upper ends, furnace chamber c
Lower end set Waste gas outlet, the furnace chamber c Waste gas outlet connection flue gas purification system, the flue gas purification system bag
The thick cleaning system being sequentially connected, booster fan, fine purifiation deduster are included, the flue gas after purification feeds synthesis flue gas compressor.
6. refuse gasification combustion gas and the steam turbine combined generating system of a kind of multi-stage heat exchanger according to claim 5, its
It is characterised by：The thick cleaning system includes aeration tower and deduster, and the fine purifiation deduster uses Lei Shi Venturi scrubbings system
System, including Venturi scrubber and cyclone separator, the Waste gas outlet of the aeration tower connection furnace chamber c, aeration tower outlet connects
Connect deduster, then by booster fan be pressurized after into fine purifiation deduster make deep purifying.
7. refuse gasification combustion gas and the steam turbine combined generating system of a kind of multi-stage heat exchanger according to claim 5, its
It is characterised by：Economizer is provided with the furnace chamber c, the water inlet of the economizer is connected with the delivery port to water input system,
The delivery port of the economizer and the carbonated drink inlet communication of drum.
8. refuse gasification combustion gas and the steam turbine combined generating system of a kind of multi-stage heat exchanger according to claim 5, its
It is characterised by：The refuse gasification CIU includes incinerator, circulation air feed system, and the incinerator includes stove
Frame, and feed hopper, gasification furnace and the incinerator set gradually on grate along feedstock direction, the rear of gasification furnace is gasification furnace
Fall cinder notch, incinerator is located at the front lower place that gasification furnace falls cinder notch, and the rear of incinerator is the slag notch of incinerator, the grate
Garbage pusher device is provided with, the garbage pusher device is located at the lower section of feed hopper, gasifies for the rubbish in feed hopper to be pushed into
In stove, the lower section of gasification furnace moving hearth and incinerator moving hearth be respectively arranged below with least one be independently arranged one
Secondary air compartment, is provided with windrow seal section, the grate part between the gasification furnace and incinerator between the feed hopper, gasification furnace
Leave transition and fall slag section, the transition falls slag section and is provided with residue pusher, for the rubbish fallen in gasification furnace residue to be pushed away
Enter in incinerator, the transition, which falls, is provided with isolating door to be opened/closed in slag section, the isolating door is used for gasification furnace, incinerator
Cut-off；The gasification furnace, incinerator include furnace shell, moving hearth respectively, and the forward and backward side of the gasification furnace is close by windrow respectively
Envelope section, transition fall slag section sealing, and the transition falls slag section isolation gasification furnace, incinerator, makes gasification furnace, incinerator separate；
The gasification furnace, incinerator set secondary air feed mouthful respectively respectively in arching upward shape on the face arch of the gasification furnace, rear arch, described
The vault of gasification furnace sets the first exhanst gas outlet, and the smoke inlet of the cyclone dust removal room is connected with the first exhanst gas outlet, described
The vault of incinerator sets and is respectively equipped with igniting combustion supporting hole on the second exhanst gas outlet, the gasification furnace, incinerator；
The circulation air feed system includes dust arrester, the first blower fan, the second blower fan, and the inlet end of the dust arrester passes through pipe
Road is connected with the second exhanst gas outlet, and the outlet side of the dust arrester is connected by pipeline with the inlet end of the first blower fan, described
The outlet side of first blower fan connects the house steward of the first manifold, the branch pipe of first manifold respectively with gasification furnace moving hearth
Each air compartment, each secondary air feed mouthful on gasification furnace and the smoke inlet connection of cyclone dust removal room of side, first discrimination
First regulating valve is set respectively on each branch pipe of pipe, the air inlet and atmosphere of second blower fan, second blower fan
Gas outlet connects the house steward of the second manifold, the branch pipe of second manifold respectively with each First air below incinerator moving hearth
The second regulating valve, institute are set respectively on the inlet end of room and dust arrester, outlet side connection, each branch pipe of second manifold
Cyclone dust removal room is stated provided with some combustion air air feeds mouthful, some combustion air air feeds mouthful are located at smoke inlet, the 3rd flue gas
Between outlet, in addition to the 3rd manifold, the house steward of the 3rd manifold connects with the gas outlet of the second blower fan, the 3rd manifold
Each branch pipe mouthful connected with some combustion air air feeds respectively, the 3rd regulating valve is set respectively on each branch pipe of the 3rd manifold.
9. refuse gasification combustion gas and the steam turbine combined generating system of a kind of multi-stage heat exchanger according to claim 8, its
It is characterised by：Common slag notch is provided with below the furnace chamber a, furnace chamber b, the lower end of the cyclone dust removal room is provided with from top to bottom
The taper slag notch that radius diminishes, the common slag notch, taper slag notch are connected with the burner hearth of gasification furnace respectively.
10. refuse gasification combustion gas and the steam turbine combined generating system of a kind of multi-stage heat exchanger according to claim 8, its
It is characterised by：Air preheater is provided with the furnace chamber c, the outlet side of 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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| CN201610801203.XA CN106224036B (en) | 2016-09-05 | 2016-09-05 | A kind of refuse gasification combustion gas of multi-stage heat exchanger and steam turbine combined generating system |
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| CN107327326A (en) * | 2017-07-28 | 2017-11-07 | 浙江大学 | A kind of integral combined circulating power generation system of integrated garbage gas steam |
| CN107269335B (en) * | 2017-07-28 | 2019-10-18 | 浙江大学 | A kind of rubbish and combined cycle generation system of fuel gas-steam using combustion gas garbage drying |
| CN108006664A (en) * | 2017-12-30 | 2018-05-08 | 上海康恒环境股份有限公司 | A kind of reversible type refuse incineration exhaust-heating boiler superheater |
| CN109372602B (en) * | 2018-09-07 | 2024-01-30 | 上海明华电力科技有限公司 | Steam coupling system and method for biomass incinerator and coal-fired unit |
| CN109539216B (en) * | 2018-12-18 | 2023-09-05 | 华北电力大学 | Combined power generation system integrating garbage incineration boiler and coal-fired boiler |
| CN109519240B (en) * | 2019-01-04 | 2024-02-02 | 安徽誉特双节能技术有限公司 | Circulating power generation device adopting steam turbine |
| 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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| JP2003090519A (en) * | 2001-09-14 | 2003-03-28 | Sumitomo Heavy Ind Ltd | Gasifying system for refuse |
| JP2004028400A (en) * | 2002-06-24 | 2004-01-29 | Babcock Hitachi Kk | Melting system for pyrolytical gasification |
| CN105465793B (en) * | 2015-12-31 | 2017-10-13 | 重庆科技学院 | Double-deck stoker fired grate formula refuse gasification burns double boiler electricity generation system |
| CN105627324B (en) * | 2015-12-31 | 2018-02-02 | 重庆科技学院 | The double boiler electricity generation system of synthesis gas is burned using refuse gasification |
| CN105689360B (en) * | 2016-03-03 | 2017-12-26 | 中冶东方工程技术有限公司 | A kind of system and technique of the domestic garbage burning electricity generation that gasified using coal gas of converter |
| CN206092090U (en) * | 2016-09-05 | 2017-04-12 | 重庆科技学院 | Multi - stage heat's waste gasification gas and steam turbine integrated power production system |
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