CN105627324B - The double boiler electricity generation system of synthesis gas is burned using refuse gasification - Google Patents

The double boiler electricity generation system of synthesis gas is burned using refuse gasification Download PDF

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Publication number
CN105627324B
CN105627324B CN201511033786.8A CN201511033786A CN105627324B CN 105627324 B CN105627324 B CN 105627324B CN 201511033786 A CN201511033786 A CN 201511033786A CN 105627324 B CN105627324 B CN 105627324B
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China
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steam
water
furnace chamber
furnace
drum
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CN105627324A (en
Inventor
周雄
林顺洪
李长江
徐�明
柏继松
季炫宇
田野
阳小燕
莫榴
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Chongqing University of Science and Technology
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Chongqing University of Science and Technology
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • F23G5/0276Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage using direct heating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/34Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
    • F01K7/38Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating the engines being of turbine type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/34Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
    • F01K7/40Use of two or more feed-water heaters in series
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00Methods of steam generation characterised by form of heating method
    • F22B1/02Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/08Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B33/00Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
    • F22B33/18Combinations of steam boilers with other apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44Details; Accessories
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44Details; Accessories
    • F23G5/442Waste feed arrangements
    • F23G5/444Waste feed arrangements for solid waste
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING 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
    • F23L1/00Passages or apertures for delivering primary air for combustion 
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING 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
    • F23L15/00Heating of air supplied for combustion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING 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
    • F23L9/00Passages or apertures for delivering secondary air for completing combustion of fuel 
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/40Gasification
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2203/00Furnace arrangements
    • F23G2203/105Furnace arrangements with endless chain or travelling grate
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2205/00Waste feed arrangements
    • F23G2205/10Waste feed arrangements using ram or pusher
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING 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
    • F23L2900/00Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/12Heat utilisation in combustion or incineration of waste
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

The invention discloses a kind of transition heat efficiency losses are smaller, the higher double boiler electricity generation system that synthesis gas is burned using refuse gasification of organic efficiency of heat.Including steam input pipe, steam turbine, generator, steam input pipe connects the steam input of steam turbine, the steam output end of steam turbine is sequentially connected condenser, water pump, low pressure vapor heater, oxygen-eliminating device, booster water pump, high pressure steam water heater, the heated input of low pressure vapor heater is connected with water pump, low pressure vapor heater is connected by hot output terminal with oxygen-eliminating device, the heated input of high pressure steam water heater is connected with booster water pump, high pressure steam water heater is exported boiler feed water by hot output terminal, first is set on steam turbine, second steam takes pipe to take steam to the steam output end of steam turbine, first steam takes the output end of pipe to connect the heating input of high pressure steam water heater, second steam takes the output end of pipe to connect the heating input of low pressure vapor heater.

Description

The double boiler electricity generation system of synthesis gas is burned using refuse gasification
Technical field
Synthesis gas is burned the invention belongs to solid waste incineration processing technology field, more particularly to using refuse gasification Double boiler electricity generation 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 that reduced training is obvious, it is innoxious thoroughly, occupation of land amount is small, and waste heat energy is utilized, and secondary pollution is few The advantages that, meet the strategic requirement of China's sustainable development.But with the continuous improvement to environmental requirement both at home and abroad, 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, especially for domestic rubbish primarily now using all kinds of incineration technologies, 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 a definite limitation be present, 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, mechanical backstepping fire grate, forwards fire grate or combined fire grate are used in body of heater wherein having, is also adopted 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 it is actual in China Need to solve the problems, such as in and deficiency:
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.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 key problem for technically 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 use boiler recovery 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 two patents of invention of existing incinerator:Multiple row sectional drive combined type domestic garbage incinerator (ZL200710092508.9) an open question and in two-stage garbage incinerator (ZL201010268376.2):At rubbish heat Manage model comparision to fall behind, simply dry-burn-burn, solid combustion discharges the process of heat;Thermal chemical reaction is to aoxidize in stove Based on reaction, reduction reaction auxiliary, secondary pollution is also easy to produce;When rubbish burns in stove, oxygen quotient excessively is big, First air, two Secondary wind infeed amount is big, and dust content is higher in flue gas, and heat reclaiming system and smoke processing system are had a great influence, easily product Ash, exhaust gas volumn is larger, reduces thermal conversion efficiency;The gasification furnace and incinerator not being separately provided, can only handle rubbish by several times, Large-scale rubbish continuous gasification burning disposal can not be realized, garbage treatment quantity is smaller.
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 the double of synthesis gas are burned using refuse gasification Boiler power generation system.Its rubbish conveying capacity is stronger, and garbage treatment quantity is bigger, can reduce thermal losses and improve heat exchange effect Rate, the organic efficiency of heat is higher, and can efficiently reduce pollutant discharge amount.
The object of the present invention is achieved like this:
It is a kind of using refuse gasification burn synthesis gas double boiler electricity generation system, including steam input pipe, steam turbine and The generator being connected with turbine power, the steam input of the output end connection steam turbine of the steam input pipe, the vapour The steam output end of turbine is sequentially connected condenser, water pump, low pressure vapor heater, oxygen-eliminating device, booster water pump, height by pipeline Press steam water heater, the heated input of the low pressure vapor heater is connected with water pump, low pressure vapor heater it is heated defeated Go out end to be connected with oxygen-eliminating device, the input of oxygen-eliminating device is provided with moisturizing pipeline, the heated input of the high pressure steam water heater and Booster water pump is connected, and high pressure steam water heater is exported boiler feed water by hot output terminal, and the steam turbine is provided with the first steam Pipe, the second steam is taken to take pipe to take steam to the steam output end of steam turbine respectively, first steam takes the output end of pipe to connect The heating input of high pressure steam water heater, second steam take the heating of the output end connection low pressure vapor heater of pipe defeated Enter end.
Further, in addition to steam generator system, the steam generator system include boiler body a, boiler body b, the boiler Body a has cyclone combustion chamber, furnace chamber a, a furnace chamber b, and the lower end of the cyclone combustion chamber sets smoke inlet, on cyclone combustion chamber Hold and be provided with some combustion air air feed mouths, some combustion air air feed mouth positions for the 3rd exhanst gas outlet, the cyclone combustion chamber Between smoke inlet, the 3rd exhanst gas outlet, the 3rd exhanst gas outlet of cyclone combustion chamber upper end connects with furnace chamber a upper end, institute Furnace chamber a, furnace chamber b lower end connection are stated, the upper end of the furnace chamber b sets waste gas outlet, circumferentially set in the cyclone combustion chamber Have in water-cooling wall a, the furnace chamber a in a ring and be provided with superheater a, evaporator a, boiler body a top are provided with furnace chamber b End sets drum a, and the cyclone combustion chamber, furnace chamber a, furnace chamber b are respectively positioned on below drum a, and the drum a enters provided with carbonated drink Mouthful, drum a separates steam water interface by water separator, drum a delivery port respectively by pipeline connect water-cooling wall a, Evaporator a water inlet, the water isolated for exporting water separator, the water-cooling wall a, evaporator a venthole point Drum a air intake is not connected by steam pipe, for the high-temperature steam that flows back, the saturated vapor outlet of the drum a passes through pipeline Superheater a air intake is connected, for the high-temperature steam of backflow to be inputted in superheater a;
The boiler body b has cyclone dust removal room, furnace chamber d, and the lower end of cyclone dust removal room sets another smoke inlet, rotation The upper end of wind dirt pocket connects with furnace chamber d upper end, furnace chamber d lower end discharge flue gas, is circumferentially set in the cyclone dust removal room Have be provided with superheater b in water-cooling wall b, the furnace chamber d in a ring, evaporator b, the superheater b are located at evaporator b's Top, boiler body b top set drum b, and the cyclone dust removal room, furnace chamber d are respectively positioned on below drum b, on the drum b Provided with carbonated drink import, drum b separates steam water interface by water separator, and drum b delivery port by passing through pipe respectively Road connection water-cooling wall b, evaporator b water inlet, the water isolated for exporting water separator, the water-cooling wall b, evaporation Device b venthole connects drum b air intake, for the high-temperature steam that flows back, the saturated vapor of the drum b by steam pipe respectively Outlet connects superheater b air intake by pipeline, for the high-temperature steam of backflow to be inputted in superheater b;
The carbonated drink import for being connected drum a, drum b by pipeline by hot output terminal of the high pressure steam water heater, it is described Steam input pipe connects the superheater a, superheater b venthole by pipeline respectively.
Further, in addition to the gasification furnace of stoker fired grate formula refuse gasification incinerator, incinerator and its circulation air feed system System, can seal or connect between gasification furnace and incinerator, and gasifying furnace bed lower section and burns furnace bed lower section difference Provided with an at least one independent air compartment, secondary air feed mouth, the gasification are set respectively on the face arch of the gasification furnace, rear arch The vault of stove sets the first exhanst gas outlet, and the smoke inlet of the cyclone combustion chamber is connected by pipeline with the first exhanst gas outlet, The vault of the incinerator sets the second exhanst gas outlet, and the lower end smoke inlet of the cyclone dust collectors and the second exhanst gas outlet connect It is logical;
The circulation air feed system includes the first blower fan, the second blower fan, the inlet end of first blower fan by pipeline with Furnace chamber d lower end connection, the outlet side of first blower fan are connected by pipeline with furnace chamber b, the air inlet of second blower fan With atmosphere, the gas outlet of second blower fan connects the first manifold, the house steward of the second manifold respectively, first manifold Branch pipe connects with each secondary air feed mouth on each air compartment and gasification furnace below gasification furnace moving hearth respectively, and described The branch pipe of two manifolds supplies with some combustion airs of each an air compartment and cyclone combustion chamber below incinerator moving hearth respectively Air port connects.
For the waste heat for making full use of steam turbine not utilize, further, in addition to high pressure vapour gas heat exchanger, low-pressure steam Gas heat exchanger, the heated passage of the high pressure vapour gas heat exchanger are connected to the first steam by pipeline and take pipe, oxygen-eliminating device input Between, the heated passage of the low-pressure steam gas heat exchanger is connected to the second steam by pipeline and taken between pipe, oxygen-eliminating device input, The heating passage of low-pressure steam gas heat exchanger, the heating Tandem of high pressure vapour gas heat exchanger are described on the house steward of the first manifold High pressure vapour gas heat exchanger is located at the downstream of low-pressure steam gas heat exchanger.
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 The upper end that the boiler body a has furnace chamber c, the furnace chamber c is connected with the waste gas outlet of furnace chamber b upper ends, and furnace chamber c lower end is set Put Waste gas outlet.
Further, air preheater, the outlet side connection air preheater of second blower fan are provided with the furnace chamber c Air inlet, the gas outlet of air preheater connects the first manifold, the house steward of the second manifold.
Further, economizer is provided with the furnace chamber c, the water inlet of the economizer and the delivery port of booster water pump connect Logical, the delivery port of the economizer passes through pipeline and drum a, drum b carbonated drink inlet communication respectively.
In order to which the flue gas discharged to furnace chamber c carries out harmless treatment, further, the Waste gas outlet of the furnace chamber c connects Connect flue gas purification system, aeration tower that the flue gas purification system includes being sequentially connected in series along discharge directions, deduster, air-introduced machine, Chimney.
In order to discharge furnace chamber a, furnace chamber b, waste residue caused by flue gas deposition in cyclone firing room, and prevent waste residue effusion from producing 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 combustion chamber is provided with from upper The taper slag notch to diminish to lower radius, the common slag notch, taper slag notch connect with the burner hearth of gasification furnace.
In order that caused high-temperature flue gas is easily drained after burning, and the installation beneficial to pipeline, it is preferable that the flue gas Entrance, the 3rd exhanst gas outlet are located at the opposite side of cyclone combustion chamber circumferential wall;3rd exhanst gas outlet is justified along cyclone combustion chamber Perisporium is radially or tangentially set.
By adopting the above-described technical solution, the present invention has the advantages that:
The steam that condenser can not utilize steam turbine is all converted to water, and absorbs the heat of steam release, removes The main function of oxygen device is exactly to remove the oxygen and other gases in boiler feedwater with it, ensures the quality of feedwater, pressurized water Pump can improve hydraulic pressure, ensure the water supply capacity to water input system, and electricity generation system heats low-grade by using high-grade steam Steam and condensed water, utilization rate of waste heat is improved, reduce thermal losses.
This steam generator system employs the structure of two boilers, the synthesis flue gas for the first exhanst gas outlet release of fully burning, profit The heat discharged with smoke combustion, and the heat for making full use of the second exhanst gas outlet to discharge, heat transfer loss is less, recuperation of heat effect Rate is higher.Synthesis gas is more abundant in cyclone firing Indoor Combustion, and temperature is higher caused by burning, and the water-cooling wall a of annular is pacified On cyclone combustion chamber, relatively reduce thermal losses and improve heat exchanger effectiveness.The origin of heat of this steam generator system recovery In the high-temperature synthesis gas flue gas of refuse gasification outlet of still, synthesis gas flue gas enters cyclone combustion chamber, while into cyclone firing room Tangential air-supplied combustion-supporting flammable synthesis gas, flue gas pass through cyclone combustion chamber, furnace chamber a, furnace chamber b, economizer and air successively Preheater.The pre- hot condensed water of economizer is recycled, pre- hot condensed water enters two boilers, and condensed water is in two water-cooling walls and two Heated in evaporator, form saturated vapor and enter two drums, saturated vapor enters two superheaters after steam-water separation, adds again Thermosetting superheated steam exports, available for generate electricity, heat supply, heating etc..Present inventive concept is novel, using cyclone-burning method, subtracts Fly ash content in flue gas is lacked;Syngas combustion temperature is high, and gas residence time length, pollutant is effectively decomposed, and reduces dirty Thing discharge is contaminated, realizes synthesis gas burning disposal and heat recovery and utilization after rubbish continuous gasification.
Gasification furnace, the incinerator of incinerator are provided separately, and the vault of gasification furnace sets the first exhanst gas outlet, incinerator Vault the second exhanst gas outlet is set, handle flue gas respectively beneficial to the difference according to flue gas quality, while be advantageous to remove flue gas Dirt, the flue gas of higher quality can be provided, make the utilization rate of flue gas higher, the waste residue of discharge is less.
First blower fan extracts the waste gas from furnace chamber d discharges, is introduced into furnace chamber b, makes full use of boiler body b not utilize Complete waste heat, also by cyclone dust removal room reach dedusting prevent flue dust overflow purpose;Second blower fan passes through air preheater profit With the waste gas discharged from furnace chamber c, the waste heat for making full use of boiler body a not utilize.The wind of second blower fan bulging passes through first Manifold provides First air, Secondary Air for gasification furnace, rubbish in gasification furnace is produced gasification, contains a certain amount of synthesis gas in gasification furnace Flue gas, discharged from the first exhanst gas outlet, into cyclone combustion chamber processing links, cyclone combustion chamber provides high-temperature flue gas.Second The wind of blower fan bulging provides First air by the second manifold for incinerator, and provides combustion air for cyclone combustion chamber, makes to burn Stove residue is fully burnt, and the synthesis flue gas in cyclone firing room fully burns.The stoker fired grate formula refuse gasification of this structure burns Stove garbage treatment quantity is big, and the rubbish bed of material can undergo the stage that burns of drying, gasification and residue, adaptation China on stoker fired grate The characteristics such as house refuse water content height, complicated component, improve the energy conversion efficiency in garbage processing procedure and reduce flue gas Middle pollutant discharge amount, secondary pollution is effectively prevented, and large-scale rubbish continuous gasification burning disposal can be realized, ensure rubbish Rubbish gasification burning effect 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 the structural representation of the present invention;
Fig. 2 is the structural representation of cyclone combustion chamber;
Fig. 3 is Fig. 2 schematic top plan view;
Fig. 4 is the structural representation of electricity generation system;
Fig. 5 is the structural representation of flue gas purification system;
Fig. 6 is the structural representation of incinerator.
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 transition 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 mouth, 116 be slag notch, and 117 be slag mouth;
202 be the first blower fan, and 203 be the second blower fan, and 204 be the first manifold, and 205 be the second manifold;
3 be cyclone combustion chamber, and 301 be combustion chamber ignition combustion-supporting hole, and 302 be taper slag notch, and 303 be smoke inlet, 304 It is combustion air air feed mouth for the 3rd exhanst gas outlet, 305;
4 be boiler body a, and 402 be furnace chamber a, and 403 be furnace chamber b, and 404 be furnace chamber c, and 405 be water-cooling wall a, and 406 be overheat Device a, 407 be evaporator a, and 408 be drum a, and 418 be economizer, and 419 be flue gas purification system, and 420 be aeration tower, 421 be except Dirt device, 422 be air-introduced machine, and 423 be chimney, and 424 be air preheater;
5 be boiler body b, and 501 be furnace chamber d, and 502 be cyclone dust removal room, and 503 be water-cooling wall b, and 504 be superheater b, 505 be evaporator b, and 506 be drum b;
6 be electricity generation system, and 601 be steam input pipe, and 602 be steam turbine, and 603 be generator, and 604 be condenser, and 605 are Water pump, 606 be low pressure vapor heater, and 607 be oxygen-eliminating device, and 608 be booster water pump, and 609 be high pressure steam water heater, and 610 are Moisturizing pipeline, 611 be that the first steam takes pipe, and 612 be that the second steam takes pipe, and 613 be high pressure vapour gas heat exchanger, and 614 be low-pressure steam Gas heat exchanger.
Embodiment
Referring to Fig. 1 to Fig. 6, preferably implement to burn one kind of the double boiler electricity generation system of synthesis gas using refuse gasification Example, including incinerator, steam generator system, circulation air feed system.
It is stoker fired grate formula refuse gasification incinerator referring to Fig. 6, including grate 101, and along charging on grate 101 Feed hopper 102, gasification furnace 103 and the incinerator 104 that direction is set gradually, rear the going out for incinerator 104 of incinerator 104 Cinder notch 116, the incinerator 104 are provided with slag mouth 117, and the slag notch 116 of the incinerator 104 is located at incinerator slag mouth 117 underface, this sealing structure effect is good, can effectively hold reduction pollutant discharge amount.Gasification furnace 103 is mainly to rubbish Carbon-containing part gasified, and discharge flammable gasification flue gas and rubbish residue, incinerator 104 is substantially carried out the burning of carbon residue Processing, and discharge innoxious lime-ash.The machinery that the siege 105 of gasification furnace 103 and incinerator 104 is independently driven using segmentation Grate-type moving hearth 105, the fire grate of stoker fired grate formula moving hearth 105 is by weight before and after moving grate plate and fixed grate plate It is folded, it is spaced collect form, adjacent multigroup moving grate plate is connected by pull bar, is driven using a set of drive device.Machine Tool grate-type 105 carrier as conveying garbage of moving hearth, embodiments thereof can be all types of moving hearths 105, such as chain Board-like, drum-type, multisection type fire grate system etc..
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 an at least one air compartment 107 being independently arranged, in the present embodiment, with gasification furnace Fire grate, drive device corresponding to air compartment 107 of 103 first halfs, as the dryer section of the siege 105 of gasification furnace 103, with gasification The gasification section of fire grate, drive device as the siege 105 of gasification furnace 103 corresponding to a latter half of air compartment 107 of stove 103.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 bed of material movement and air distribution relation on regulation moving hearth 105.Incinerator 104 can use 1-4 independent First airs The air feed of room 107, burn rear lime-ash and 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 retreats, then promotes, reciprocal more Secondary pusher forms windrow in windrow seal section 108, the entrance of gasification furnace 103 is in windrow sealing state, and enhancing gasification furnace 103 is close Effect is sealed, solves garbage pusher device 106 and 102 easy leakage problem of feed hopper.Complete prepurging is needed to dispose all rubbish When, the forward impelling half stroke again of garbage pusher device 106, rubbish is pushed completely into gasification furnace 103, makes the entrance of gasification furnace 103 Lose windrow sealing effectiveness.Transition slag section is left on the part of grate 101 between the gasification furnace 103 and incinerator 104 109, the transition slag section 109 is provided with residue pusher 110, for the rubbish residue push-in that will be fallen in gasification furnace 103 In incinerator 104, transition slag section 109 can be at windrow sealing state when accumulating rubbish residue, and enhancing gasification furnace 103 seals Effect, solves the problems, such as string wind between gasification furnace 103, incinerator 104.In the present embodiment, set in the transition slag section 109 There is isolating door 111 to be opened/closed, the isolating door 111 is used to separate gasification furnace 103, incinerator 104.At furnace lifting initial stage or need Control when altering wind between gasification furnace 103 and incinerator, close isolating door 111, stacking a certain amount of residue when slag section forms After windrow sealing, isolating door 111 can be kept to open, coordinate to use with the residue pusher 110 that lower section is set, to realize rubbish Continuous gasification burning disposal.
The upper end of the gasification furnace 103, the upper end of incinerator 104 are respectively in the shape that arches upward, the face arch of the gasification furnace 103 For 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 first Exhanst gas outlet 112, the vault of the incinerator 104 set the second exhanst gas outlet 113, and the upper end of gasification furnace 103 is arched upward, fired Igniting combustion supporting hole 114 is respectively equipped with the arching upward of the upper end of cinder stove 104.Gasification flue gas goes out from the first exhanst gas outlet 112, the second flue gas Mouth 113 excludes, 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 positions diminish, and reduce the space of incinerator occupancy, are also easier to be incubated, reduce the amount of leakage of heat, be advantageous to Rubbish fully gasifies.Secondary air feed mouth 115 is set respectively on the face arch of the gasification furnace 103, rear arch.
Referring to Fig. 1 to Fig. 3, the steam generator system includes boiler body a4, boiler body b5, and the boiler body a4 has Cyclone combustion chamber 3, furnace chamber a402, furnace chamber b403, furnace chamber c404, the lower end of the cyclone combustion chamber 3 set smoke inlet 303, The smoke inlet 303 of the cyclone combustion chamber 3 is connected by pipeline with the first exhanst gas outlet 112 of gasification furnace 103, cyclone firing The upper end of room 3 is the 3rd exhanst gas outlet 304, and the smoke inlet 303, the 3rd exhanst gas outlet 304 are located at the circumference of cyclone combustion chamber 3 The opposite side of wall, the top of cyclone combustion chamber 3 set combustion chamber ignition combustion-supporting hole 301.In order that flue gas, combustion air fire in whirlwind Burn room 3 in be sufficiently mixed, burn after discharged from the 3rd exhanst gas outlet 304, the cyclone combustion chamber 3 provided with some combustion airs confession Air port 305, some combustion air air feed mouths 305 are between smoke inlet 303, the 3rd exhanst gas outlet 304.The flue gas Entrance 303, the 3rd exhanst gas outlet 304, combustion air air feed mouth 305 are radially or tangentially set along the circumferential wall of cyclone combustion chamber 3.Whirlwind 3rd exhanst gas outlet 304 of the upper end of combustion chamber 3 connects with furnace chamber a402 upper end, the furnace chamber a402, furnace chamber b403 lower end Connection, the upper end of the furnace chamber b403 set waste gas outlet, and the lower end of the cyclone combustion chamber 3 is provided with radius from top to bottom and diminished Taper slag notch 302, the taper slag notch 302 connects with the burner hearth of gasification furnace 103.Under the furnace chamber a402, furnace chamber b403 Side is provided with common slag notch, and the common slag notch connects with the burner hearth of gasification furnace 103.In the present embodiment, this is common to go out The afterbody changeover portion of cinder notch and taper slag notch 302 with the burner hearth of gasification furnace 103 connects.
The interior edge inwall of cyclone combustion chamber 3 is circumferentially with water-cooling wall a405, the furnace chamber a402 in a ring and set There is superheater a406, evaporator a407 is provided with furnace chamber b403, the top of boiler body 4 sets drum a408, the whirlwind Combustion chamber 3, furnace chamber a402, furnace chamber b403 are respectively positioned on below drum a408, and the drum a408 is provided with carbonated drink import, for defeated Enter steam water interface, be provided with water separator in drum a408, for separating steam water interface, drum a408 delivery port leads to The water inlet for connecting water-cooling wall a405, evaporator a407 by pipeline respectively is crossed, is isolated for exporting water separator Water, the water-cooling wall a405, evaporator a407 venthole connect drum a408 air intake by steam pipe respectively, for flowing back High-temperature steam, the saturated vapor outlet of the drum a408 connects superheater a406 air intake by pipeline, for that will flow back High-temperature steam input superheater a406 in, the venthole output superheated steam of the superheater a406.
The boiler body b5 has cyclone dust removal room 502, furnace chamber d501, the lower end of the cyclone dust collectors and the second cigarette Gas outlet, the upper end of cyclone dust removal room 502 connect with furnace chamber d501 upper end, in the cyclone dust removal room 502 circumferentially Provided with being provided with superheater b504, evaporator b505, the superheater in water-cooling wall b503, the furnace chamber d501 in a ring B504 is located at evaporator b505 top, and boiler body b5 top sets drum b506, the cyclone dust removal room 502, furnace chamber D501 is respectively positioned on below drum b506, and the drum b506 is provided with carbonated drink import, and drum b506 passes through water separator point From steam water interface, drum b506 delivery port by passing through pipeline connection water-cooling wall b503, evaporator b505 water inlet respectively Mouthful, the water isolated for exporting water separator, the water-cooling wall b503, evaporator b505 venthole pass through vapour respectively Pipe connection drum b506 air intake, for the high-temperature steam that flows back, the saturated vapor outlet of the drum b506 is connected by pipeline Superheater b504 air intake is connect, for the high-temperature steam of backflow to be inputted in superheater b504, the superheater b504's goes out Steam ports exports superheated steam;The cyclone dust removal room 502, furnace chamber d501 lower end are provided with common slag notch, the slag notch with The slag mouth 117 of incinerator passes through pipeline communication.
Referring to Fig. 4, the electricity generation system 6 includes steam input pipe 601, steam turbine 602 and connected with the power of steam turbine 602 The generator 603 connect, the steam input pipe 601 connect the superheater a, superheater b venthole by pipeline respectively, steam The steam input of the output end connection steam turbine 602 of vapour input pipe 601, the steam output end of the steam turbine 602 pass through pipe Road is sequentially connected condenser 604, water pump 605, low pressure vapor heater 606, oxygen-eliminating device 607, booster water pump 608, high pressure carbonated drink Heater 609, the heated input of the low pressure vapor heater 606 are connected with water pump 605, low pressure vapor heater 606 It is connected by hot output terminal with oxygen-eliminating device 607, the input of oxygen-eliminating device 607 is provided with moisturizing pipeline 610, the high pressure steam water heater 609 heated input is connected with booster water pump 608, and high pressure steam water heater 609 is connected vapour by hot output terminal by pipeline Wrap a, drum b carbonated drink import, the steam turbine 602 provided with the first steam take pipe 611, the second steam take pipe 612 respectively to The steam output end of steam turbine 602 takes steam, and first steam takes the output end of pipe 611 to connect high pressure steam water heater 609 Heating input, second steam takes the output end of pipe 612 to connect the heating input of low pressure vapor heater 606.Also Including high pressure vapour gas heat exchanger 613, low-pressure steam gas heat exchanger 614, the heated passage of the high pressure vapour gas heat exchanger 613 passes through Pipeline is connected to the first steam and taken between pipe 611, the input of oxygen-eliminating device 607, the heated passage of the low-pressure steam gas heat exchanger 614 The second steam is connected to by pipeline to take between pipe 612, the input of oxygen-eliminating device 607, the heating of low-pressure steam gas heat exchanger 614 is led to Road, the heating Tandem of high pressure vapour gas heat exchanger 613 are on the house steward of the first manifold, 613, the high pressure vapour gas heat exchanger In the downstream of low-pressure steam gas heat exchanger 614.
Referring to Fig. 1, the circulation air feed system includes the first blower fan 202, the second blower fan 203, first blower fan 202 Inlet end is connected by pipeline with furnace chamber d lower end, and the outlet side of first blower fan 202 is connected by pipeline with furnace chamber b, institute The air inlet and atmosphere of the second blower fan 203 are stated, the gas outlet of second blower fan 203 connects the first manifold 204, respectively The house steward of two manifolds 205, the branch pipe of first manifold 204 respectively with each air compartment below gasification furnace moving hearth and Each secondary air feed mouth connection on gasification furnace, the branch pipe of second manifold 205 respectively with it is each below incinerator moving hearth Some combustion air air feed mouths of air compartment and cyclone combustion chamber connect, and are set respectively on each branch pipe of first manifold 204 The first regulating valve is put, second regulating valve is set respectively on each branch pipe of second manifold 205.
Referring to Fig. 1, Fig. 5, in the present embodiment, the upper end of the furnace chamber c404 connects with the waste gas outlet of furnace chamber b403 upper ends Logical, furnace chamber c404 lower end sets Waste gas outlet, is provided with economizer 418 in the furnace chamber c404, the economizer 418 enters The mouth of a river connects with the delivery port of booster water pump, the delivery port of the economizer 418 and drum a408 carbonated drink inlet communication.Stove Room c404 Waste gas outlet connection flue gas purification system 419, the flue gas purification system 419 include going here and there successively along discharge directions Aeration tower 420, deduster 421, air-introduced machine 422, the chimney 423 of connection.It is provided with air preheater in the furnace chamber c, described second The air inlet of the outlet side connection air preheater of blower fan 203, the gas outlet of air preheater connects the first manifold 204, second The house steward of manifold 205.
The origin of heat of boiler body a recovery enters in the high-temperature synthesis gas flue gas of refuse gasification outlet of still, synthesis gas flue gas Enter cyclone combustion chamber, while the tangential air-supplied combustion-supporting flammable synthesis gas into cyclone combustion chamber, flue gas pass through whirlwind successively Combustion chamber, furnace chamber a, furnace chamber b, economizer and air preheater.
High-temperature flue gas of the origin of heat of boiler body b recovery after residual burning after refuse gasification, flue gas enter whirlwind Dirt pocket, tangential to enter, tangential outlet, flue gas is successively by cyclone dust removal room, furnace chamber d, then by high-temperature blower by flue gas Introduce furnace chamber b.
The pre- hot condensed water of economizer is recycled, pre- hot condensed water enters boiler a and boiler b, and condensed water is in water-cooling wall and steaming Heated in hair device, form saturated vapor and enter drum, saturated vapor enters superheater after steam-water separation, is thermally formed overheat again Steam output generates electricity, and also is available for heat, heating etc..)
Saving energy in Steam Turbine electricity generation system:Superheated steam from boiler superheater is sent out into steam cylinder pushing turbine Electricity;The first steam is taken to enter high pressure steam water heater and high pressure vapour hot-air heater, heating condensate water and rear shape in steam cylinder Oxygen-eliminating device is returned into condensed water;Take the second steam to enter low pressure vapor heater and low-pressure steam hot-air heater in steam cylinder, add Condensed water is formed after hot condensed water and air and returns oxygen-eliminating device.
Steam cylinder steam (vapor) outlet connects condenser, enters low pressure vapor heater by water pump pressurization after steam is condensed, Condensed water after heating, which is formed, enters oxygen-eliminating device;Utilization of condensed water booster water pump pressurizes after deoxygenation, feeds high pressure steam water heater, The condensed water of heating heats again into economizer, enters back into boiler part.
Air and condensed water are heated with high-grade steam, improves utilization rate of waste heat, reduces loss.
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 of stoker fired grate formula refuse gasification incinerator 1 and atmospheric vent is closed, starts mechanical grate-type rubbish Rubbish incinerator 1, garbage raw material is put into feed hopper 102, the pusher back and forth of garbage pusher device 106 will be from feed hopper 102 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 fall into the moving hearth 105 of gasification furnace 103, and the moving hearth 105 of gasification furnace 103 works, Rubbish is conveyed into transition slag section 109, the pusher back and forth of residue pusher 110, the rubbish in transition slag section 109 pushed away 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 Be stopped, 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 risen Stove, baker, treat 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;Dry The purpose of stove is to remove the Natural Water and the crystallization water in lining, in order to avoid when going into operation because furnace temperature rising is too fast, moisture content is big Amount 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, start regulation circulation air feed system, adjust gasification furnace 103, incinerator 104 and circulation air feed system Technological parameter (pusher speed, fire grate speed, a wind-warm syndrome, blast and air quantity, secondary air temperature, blast and air quantity, furnace temperature, stove Interior negative pressure, thickness of feed layer etc.), fed intake to feed hopper 102, the work conveying garbage of moving hearth 105 of gasification furnace 103, rubbish exists Burning is proceeded by the burner hearth of gasification furnace 103, rubbish residue is accumulated to form windrow sealing at transition slag section 109, makes gas The stove chamber inner combustion state temperature for changing stove 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, adjust gasification furnace 103, incinerator 104 and circulate air feed system each technological parameter (pusher speed, Fire grate speed, a 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), gas Change stove 103 gradually to gasify to rubbish, gasification temperature is stable between 700-800 DEG C, contains the stable generation of gasification furnace 103 The high-temperature flue gas of 10%-20% synthesis gas, the vaporized state of gasification furnace 103 stably carry out low temperature, medium temperature or high-temperature gasification.Make The fired state temperature stabilization of incinerator 104 realizes rubbish continuous gasification burning disposal to more than 850 DEG C;Whirlwind need to be adjusted simultaneously Each technological parameter of combustion chamber 3, make the temperature stabilization of the 3rd exhanst gas outlet of cyclone combustion chamber 3 304 to more than 850 DEG C.
Step D, it need to overhaul or during blowing out, stop feeding intake, regulation gasification furnace 103, incinerator 104 and circulation air feed system Technological parameter, gasification furnace 103 is gradually restored to fired state, after rubbish and rubbish residue are burnt, close stoker fired grate Formula refuse gasification incinerator 1 and circulation air feed system.Each technological parameter of cyclone combustion chamber 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 (9)

1. it is a kind of using refuse gasification burn synthesis gas double boiler electricity generation system, including steam input pipe, steam turbine and with The generator of turbine power connection, the steam input of the output end connection steam turbine of the steam input pipe, the steamer The steam output end of machine is sequentially connected condenser, water pump, low pressure vapor heater, oxygen-eliminating device, booster water pump, high pressure by pipeline Steam water heater, the heated input of the low pressure vapor heater are connected with water pump, low pressure vapor heater by thermal output End is connected with oxygen-eliminating device, and the input of oxygen-eliminating device is provided with moisturizing pipeline, and the heated input of the high pressure steam water heater is with increasing Water pump is connected, and high pressure steam water heater is exported boiler feed water by hot output terminal, and the steam turbine takes provided with the first steam Pipe, the second steam take pipe to take steam to the steam output end of steam turbine respectively, and it is high that first steam takes the output end of pipe to connect The heating input of steam water heater is pressed, second steam takes the output end of pipe to connect the heating of low pressure vapor heater and inputted End;
Also include steam generator system, the steam generator system includes boiler body a, boiler body b, the boiler body a have whirlwind Combustion chamber, furnace chamber a, furnace chamber b, the lower end of the cyclone combustion chamber set smoke inlet, and cyclone combustion chamber upper end is the 3rd flue gas Outlet, the cyclone combustion chamber are provided with some combustion air air feed mouths, and some combustion air air feed mouths are located at smoke inlet, the Between three exhanst gas outlets, the 3rd exhanst gas outlet of cyclone combustion chamber upper end connects with furnace chamber a upper end, the furnace chamber a, furnace chamber b Lower end connection, the upper end of the furnace chamber b sets waste gas outlet, circumferentially arranged with water cooling in a ring in the cyclone combustion chamber Superheater a is provided with wall a, the furnace chamber a, evaporator a is provided with furnace chamber b, boiler body a top sets drum a, institute State cyclone combustion chamber, furnace chamber a, furnace chamber b to be respectively positioned on below drum a, the drum a is provided with carbonated drink import, and drum a passes through carbonated drink Separator separates steam water interface, and drum a delivery port connects water-cooling wall a, evaporator a water inlet by pipeline respectively, The water isolated for exporting water separator, the water-cooling wall a, evaporator a venthole connect vapour by steam pipe respectively A air intake is wrapped, for the high-temperature steam that flows back, vapour is entered in the saturated vapor outlet of the drum a by pipeline connection superheater a Mouthful, for the high-temperature steam of backflow to be inputted in superheater a;
The boiler body b has cyclone dust removal room, furnace chamber d, and the lower end of cyclone dust removal room sets another smoke inlet, and whirlwind removes The upper end of dirt room connects with furnace chamber d upper end, furnace chamber d lower end discharge flue gas, in the cyclone dust removal room circumferentially arranged with Annular water-cooling wall b, the furnace chamber d in be provided with superheater b, evaporator b, the superheater b are located at evaporator b top, Boiler body b top sets drum b, and the cyclone dust removal room, furnace chamber d are respectively positioned on below drum b, and the drum b is provided with Carbonated drink import, drum b separate steam water interface by water separator, and drum b delivery port by pipeline by being connected respectively Water receiving cold wall b, evaporator b water inlet, the water isolated for exporting water separator, the water-cooling wall b, evaporator b Venthole drum b air intake is connected by steam pipe respectively, for the high-temperature steam that flows back, the saturated vapor of the drum b goes out Mouth connects superheater b air intake by pipeline, for the high-temperature steam of backflow to be inputted in superheater b;
The carbonated drink import for being connected drum a, drum b by pipeline by hot output terminal of the high pressure steam water heater, the steam Input pipe connects the superheater a, superheater b venthole by pipeline respectively.
2. the double boiler electricity generation system according to claim 1 that synthesis gas is burned using refuse gasification, it is characterised in that:Also Gasification furnace, incinerator including stoker fired grate formula refuse gasification incinerator and its circulation air feed system, gasification furnace and incinerator it Between can seal or connect, gasifying furnace bed lower section and burns and furnace bed is respectively arranged below with least one independent one Secondary air compartment, secondary air feed mouth is set respectively on the face arch of the gasification furnace, rear arch, the vault of the gasification furnace sets the first flue gas Outlet, the smoke inlet of the cyclone combustion chamber are connected by pipeline with the first exhanst gas outlet, and the vault of the incinerator is set Second exhanst gas outlet, the lower end smoke inlet of the cyclone dust collectors connect with the second exhanst gas outlet;
The circulation air feed system includes the first blower fan, the second blower fan, and the inlet end of first blower fan passes through pipeline and furnace chamber d Lower end connection, the outlet side of first blower fan connected by pipeline with furnace chamber b, the air inlet and air of second blower fan Connection, the gas outlet of second blower fan connect the first manifold, the house steward of the second manifold, the branch pipe point of first manifold respectively Do not connected with each secondary air feed mouth on each air compartment and gasification furnace below gasification furnace moving hearth, second manifold Branch pipe connect respectively with some combustion air air feed mouths of each an air compartment and cyclone combustion chamber below incinerator moving hearth It is logical.
3. the double boiler electricity generation system according to claim 2 that synthesis gas is burned using refuse gasification, it is characterised in that:Also Including high pressure vapour gas heat exchanger, low-pressure steam gas heat exchanger, the heated passage of the high pressure vapour gas heat exchanger is connected to by pipeline First steam is taken between pipe, oxygen-eliminating device input, and the heated passage of the low-pressure steam gas heat exchanger is connected to second by pipeline Steam is taken between pipe, oxygen-eliminating device input, heating passage, the heating passage string of high pressure vapour gas heat exchanger of low-pressure steam gas heat exchanger It is coupled on the house steward of the first manifold, the high pressure vapour gas heat exchanger is located at the downstream of low-pressure steam gas heat exchanger.
4. the double boiler electricity generation system according to claim 3 that synthesis gas is burned using refuse gasification, it is characterised in that:Institute The upper end that stating boiler body a has furnace chamber c, the furnace chamber c is connected with the waste gas outlet of furnace chamber b upper ends, and furnace chamber c lower end is set Waste gas outlet.
5. the double boiler electricity generation system according to claim 4 that synthesis gas is burned using refuse gasification, it is characterised in that:Institute State and air preheater is provided with furnace chamber c, the air inlet of the outlet side connection air preheater of second blower fan, air preheater Gas outlet connect the first manifold, the house steward of the second manifold.
6. the double boiler electricity generation system according to claim 4 that synthesis gas is burned using refuse gasification, it is characterised in that:Institute State in furnace chamber c and be provided with economizer, the water inlet of the economizer connects with the delivery port of booster water pump, the water outlet of the economizer Mouth passes through pipeline and drum a, drum b carbonated drink inlet communication respectively.
7. the double boiler electricity generation system according to claim 4 that synthesis gas is burned using refuse gasification, it is characterised in that:Institute Furnace chamber c Waste gas outlet connection flue gas purification system is stated, the flue gas purification system includes what is be sequentially connected in series along discharge directions Aeration tower, deduster, air-introduced machine, chimney.
8. the double boiler electricity generation system according to claim 2 that synthesis gas is burned using refuse gasification, it is characterised in that:Institute State and common slag notch is provided with below furnace chamber a, furnace chamber b, the lower end of the cyclone combustion chamber is provided with what radius from top to bottom diminished Taper slag notch, the common slag notch, taper slag notch connect with the burner hearth of gasification furnace.
9. the double boiler electricity generation system according to claim 2 that synthesis gas is burned using refuse gasification, it is characterised in that:Institute State smoke inlet, the 3rd exhanst gas outlet is located at the opposite side of cyclone combustion chamber circumferential wall;3rd exhanst gas outlet fires along whirlwind Room circumferential wall is burnt radially or tangentially to set.
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