CN203403070U - Biomass pressurized fluidized-bed gasification gas turbine combined cycle power generation system - Google Patents
Biomass pressurized fluidized-bed gasification gas turbine combined cycle power generation system Download PDFInfo
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- CN203403070U CN203403070U CN201320424249.6U CN201320424249U CN203403070U CN 203403070 U CN203403070 U CN 203403070U CN 201320424249 U CN201320424249 U CN 201320424249U CN 203403070 U CN203403070 U CN 203403070U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
-
- 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]
-
- 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]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model provides a biomass pressurized fluidized-bed gasification gas turbine combined cycle power generation system. The system is characterized in that a biomass raw material is conveyed to a gasification device by adopting a feeding mode of pressurized air conveying; a gasification furnace adopts the mode of a pressurized fluidized-bed, and the generated combustible gases are fed into a heat recovery device, a cyclone separator, a ceramic multicyclone dust collector, a telescopic quench tar separator and a gas purifier in sequence to be treated; the sensible heat of the high temperature gases is recycled by a waste heat boiler; the unreacted carbon residues and tar obtained after separation can return to the pressurized gasification furnace to react again; the purified gases are used by a gas turbine and a steam turbine for combined cycle power generation. The system has the advantages that the system hardly exhausts any harmful gas and is very beneficial to environmental protection; the gasification efficiency is high, and the tar can be adsorbed and decomposed again; the gases are dedusted and purified more thoroughly, and the tar separation efficiency is high; the system makes full use of the limited resources, improves the power generation efficiency and is suitable for developing and utilizing biomass energy in a large scale.
Description
Technical field
The utility model relates to a kind of cycle generating system of novel biomass gasifying, is specifically related to the pressurised fluidized bed gasification burning turbine of a kind of biomass association circulating power generation system.
Background technology
At present, energy problem has become the focus of countries in the world common concern, and due to the relative shortage of primary energy source, exploitation renewable energy source becomes the important component part of countries in the world energy strategy.Biomass are unique storable renewable energy sources, also belong to green energy resource.Utilize biomass power generation both can save fossil energy, can reduce again the discharge of bazardous waste, there is very high economic worth, significant to environment protection.
Along with country utilizes attention and the research of technology to biomass, China's biomass power generation develops rapidly, mainly take direct combustion power generation and gasifying electricity generation as main.Directly combustion power generation is that biomass material is delivered to and produced steam after boiler combustion and generate electricity by steam turbine, and the generating efficiency of this technology is lower, only has 20% left and right, to being in great demand of biomass material.Meanwhile, because biomass have little, the bulky feature of density, its transportation cost is high, and the collection transportation radius that has limited biomass is unsuitable excessive.And directly burning still brings great pollution to environment, energy utilization rate is low.
The ultimate principle of Biomass Gasification Power Generation Technology is that biomass are gasified in vapourizing furnace, is converted into combustible gas, then purified gas is directly sent into combustion power generation in the combustion chamber of oil engine, internal combustion turbine.Gasifying electricity generation has solved biomass and has been difficult to the problem that burning utilizes and distributes and disperse, and gives full play to fuel gas generation technical equipment compact and pollute few advantage simultaneously, be biomass energy effectively the cleanest utilize one of method.But that the feature of biological fuel gas is calorific value is low, foreign matter content is high, the efficiency of general small size gas turbine is only 25% left and right, present adopted atmospheric gasification and combustion gas cooling gasification technology, and overall efficiency is generally lower than 35%.Therefore be necessary to improve the technology of biomass power generation, improve biomass power generation overall efficiency, increase biomass power generation installed capacity, reduce the discharge of traditional pollutent and greenhouse gases.
Summary of the invention
The purpose of this utility model is to provide a kind of system of Biomass Gasification & Power Generation, the mode that biomass are carried with pressurized air flow is delivered to pressurized-gasification furnace gasification, combustion gas utilizes internal combustion turbine and waste heat boiler combined cycle generation after dedusting, tar removing and purification, improves the capacity usage ratio of generating efficiency and system.
For achieving the above object, the solution that the utility model proposes for existing technical problem is: propose a kind of system---the pressurised fluidized bed gasification burning turbine of biomass combined cycle generation technology of novel biomass gasifying generating, comprise biomass charging, gasifying biomass, gas sweetening, gas turbine power generation, utilize cogeneration five parts.Biomass material is collected after also pre-treatment, and the feeding manner that adopts pressurized air flow to carry is delivered to gasification installation, makes raw material transfer pressure consistent with vapourizing furnace pressure.Vapourizing furnace adopts pressurization multitube Internal Circulating Fluidized Bed, passes into air and gasifies, and biomass generate high-temperature combustible gas body in vapourizing furnace gasification, and after gasification, remaining ash is discharged to outside stove in time, reclaims heat by heat reclamation device simultaneously, reduces the temperature that generates gas.The combustible gas component generating is mainly CO, CH
4, H
2, CO
2deng, contain a small amount of tar simultaneously, need carry out dedusting and tar removing and just can be used for generating.Purified gas enters gas-turbine generator set generating, and the high-temperature flue gas that gas-turbine generator set is discharged utilizes waste-heat recovery device to reclaim heat.The sensible heat of the waste heat of generating set and gasification outlet of still high-temperature fuel gas produces steam by waste heat boiler and superheater, promotes steam turbine rotation and generates electricity.
Concrete scheme is as follows:
The pressurised fluidized bed gasification burning turbine of a kind of biomass association circulating power generation system, comprise former hopper, crusher, normal pressure hopper, transformation storehouse, weighing hopper, air compressor machine, pressurized-gasification furnace, heat reclamation device, cyclonic separator, material returning valve, ceramic multicyclone dust collector, tar separator, tar injector, retrieving arrangement, gas purifier, combustion gas supercharger, gas-turbine generator set, waste heat boiler and steam turbine generating set, wherein: it is broken for biomass material that the bottom of former hopper connects crusher, particle after fragmentation is successively by normal pressure hopper, transformation storehouse and weighing hopper, and the feeding manner that adopts pressurized air flow to carry enters from pressurized gasification furnace bottom, the pressurized air that air compressor machine provides simultaneously adds in pressurized-gasification furnace from bottom, biomass are generating gasification reaction in pressurized-gasification furnace, generate the inflammable gas of high temperature, exit at pressurized-gasification furnace arranges heat reclamation device, utilize water system to reclaim high-temperature fuel gas sensible heat, the heat reclaiming produces steam driven steam turbine by waste heat boiler and generates electricity, and after gasification, remaining ash discharges out of the furnace in time, combustion gas after cooling enters cyclonic separator, removes the solid particulate carrying in gas, and the unreacted carbon residue of collecting after gas solid separation is got back to pressurized-gasification furnace by material returning valve and further reacted, the combustion gas of process cyclonic separator passes into ceramic multicyclone dust collector again and carries out dedusting, combustion gas after dedusting enters tar separator: isolated tar is collected by retrieving arrangement, or by tar injector, get back to further reaction in pressurized-gasification furnace, at this moment need air compressor machine to provide pressurized air to carry out atomization to tar, isolated combustion gas pass into filling the gas purifier of gac purify, remove HCL, H in gas
2s, COS and superfine small-particle, purified gas improves pressure by combustion gas supercharger, make gaseous-pressure consistent with the air compressor machine pressure in gas-turbine generator set, combustion gas after supercharging is sent to gas-turbine generator set generating, the high-temperature flue gas of discharging after generating carries out recovery of heat by waste heat boiler, produce steam and deliver to the generating of steam turbine generating set, form combined cycle generation, residual exhaust is discharged by chimney.
Gasifying biomass combined cycle generation technology described in the utility model, has the following advantages:
1, discharge hardly any obnoxious flavour, very favourable to environment protection;
2, the feed-type that adopts pressurized air flow to carry, can make transfer pressure consistent with vapourizing furnace pressure, avoids occurring recoil;
3, vapourizing furnace adopts multitube Internal Circulating Fluidized Bed, guarantees that fluidizing medium directly contacts with fuel, and heat storage capacity is huge, and heat-transfer effect is good, and macromolecule component (as tar) can be adsorbed again and decompose simultaneously;
4, adopt pressurized-gasification furnace can meet the requirement of internal combustion turbine to pressure, the fuel treatment amount in unit surface increases simultaneously, and vapourizing furnace volume reduces;
5, adopt telescoping chilling tar separator, tar is almost by thorough separation.The gas purifier of filling gac is thoroughly cleaned totally the impurity of combustion gas.
6, adopted internal combustion turbine and steam turbine combined cycle efficient power generation technology, improved generating efficiency, generating net efficiency can reach more than 35%, is applicable to large-scale develop and utilize biomass energy.
Accompanying drawing explanation
Fig. 1 is the pressurised fluidized bed gasification burning turbine of the utility model biomass association circulating power generation system schematic diagram;
Element numbers explanation in figure:
Former hopper 1, crusher 2, normal pressure hopper 3, transformation storehouse 4, weighing hopper 5, air compressor machine 6, vapourizing furnace 7, heat reclamation device 8, cyclonic separator 9, material returning valve 10, ceramic multicyclone dust collector 11, tar separator 12, tar injector 13, retrieving arrangement 14, gas purifier 15, combustion gas supercharger 16, gas-turbine generator set 17, waste heat boiler 18, steam turbine generating set 19.
Embodiment
The system of a kind of novel biomass power generation as shown in Figure 1, gasification scale is at 6～50MW, pressure range at normal pressure between 1.5MPa, comprise the former hopper 1 of biomass gasifying furnace, it is broken for biomass material that bottom connects crusher 2, grain diameter after fragmentation is less than 5mm, and successively by normal pressure hopper 3, transformation storehouse 4 and weighing hopper 5, the feeding manner that adopts pressurized air flow to carry enters from pressurized-gasification furnace 7 bottoms.
Pressurized-gasification furnace 7 adopts the form of multitube Internal Circulating Fluidized Bed, the pressurized air that air compressor machine 6 provides simultaneously adds vapourizing furnace 7 from bottom, biomass are generating gasification reaction in vapourizing furnace 7, generate the inflammable gas of high temperature, in vapourizing furnace 7 exits, heat reclamation device 8 is set, utilizes water system to reclaim high-temperature fuel gas sensible heat, reduce fuel gas temperature, and producing steam by waste heat boiler 18, after gasification, remaining ash discharges out of the furnace in time.
Combustion gas after cooling enters cyclonic separator 9, removes the solid particulate carrying in gas, and the unreacted carbon residue of collecting after gas solid separation is got back to vapourizing furnace 7 by material returning valve 10 and further reacted.Combustion gas passes into ceramic multicyclone dust collector 11 again and carries out dedusting, and subparticle is cleaned up substantially.Combustion gas after dedusting enters tar separator 12, and tar separator 12 adopts telescoping quench gas liquid separating apparatus, and the cooling casing pack heat-eliminating medium of overcoat (porous material) passes into liquid nitrogen continuously or intermittently, makes chiller temperature be controlled at 0～-20 ℃.Isolated tar can be collected and is used as transit by retrieving arrangement 14, also can get back to further reaction in vapourizing furnace 7 by tar injector 13, at this moment needs air compressor machine 6 to provide pressurized air to carry out atomization to tar.Isolated combustion gas pass into filling the gas purifier 15 of gac purify, remove HCL, H2S, COS and superfine small-particle in gas.
Purified gas improves pressure by combustion gas supercharger 16, makes gaseous-pressure consistent with gas-turbine generator set 17 hollow press pressures.Combustion gas after supercharging is sent to gas-turbine generator set 17 generatings, the high-temperature flue gas of discharging after generating carries out recovery of heat by waste heat boiler 18, produce steam and deliver to 19 generatings of steam turbine generating set, form combined cycle generation, residual exhaust is discharged by chimney.
Claims (4)
1. the pressurised fluidized bed gasification burning turbine of a biomass association circulating power generation system, it is characterized in that, comprise former hopper, crusher, normal pressure hopper, transformation storehouse, weighing hopper, air compressor machine, pressurized-gasification furnace, heat reclamation device, cyclonic separator, material returning valve, ceramic multicyclone dust collector, tar separator, tar injector, retrieving arrangement, gas purifier, combustion gas supercharger, gas-turbine generator set, waste heat boiler and steam turbine generating set, wherein:
It is broken for biomass material that the bottom of former hopper connects crusher, and the particle after fragmentation is successively by normal pressure hopper, transformation storehouse and weighing hopper, and the feeding manner that adopts pressurized air flow to carry enters from pressurized gasification furnace bottom;
The pressurized air that air compressor machine provides simultaneously adds in pressurized-gasification furnace from bottom, biomass are generating gasification reaction in pressurized-gasification furnace, generate the inflammable gas of high temperature, exit at pressurized-gasification furnace arranges heat reclamation device, utilize water system to reclaim high-temperature fuel gas sensible heat, the heat reclaiming produces steam driven steam turbine by waste heat boiler and generates electricity, and after gasification, remaining ash discharges out of the furnace in time; Combustion gas after cooling enters cyclonic separator, removes the solid particulate carrying in gas, and the unreacted carbon residue of collecting after gas solid separation is got back to pressurized-gasification furnace by material returning valve and further reacted;
The combustion gas of process cyclonic separator passes into ceramic multicyclone dust collector again and carries out dedusting, combustion gas after dedusting enters tar separator: isolated tar is collected by retrieving arrangement, or by tar injector, get back to further reaction in pressurized-gasification furnace, at this moment need air compressor machine to provide pressurized air to carry out atomization to tar; Isolated combustion gas pass into filling the gas purifier of gac purify, remove HCL, H in gas
2s, COS and superfine small-particle;
Purified gas improves pressure by combustion gas supercharger, make gaseous-pressure consistent with the air compressor machine pressure in gas-turbine generator set, combustion gas after supercharging is sent to gas-turbine generator set generating, the high-temperature flue gas of discharging after generating carries out recovery of heat by waste heat boiler, produce steam and deliver to the generating of steam turbine generating set, form combined cycle generation, residual exhaust is discharged by chimney.
2. the pressurised fluidized bed gasification burning turbine of a kind of biomass according to claim 1 association circulating power generation system, is characterized in that, the grain diameter after described biomass material fragmentation is less than 5mm.
3. the pressurised fluidized bed gasification burning turbine of a kind of biomass according to claim 1 association circulating power generation system, is characterized in that, described pressurized-gasification furnace adopts the form of multitube Internal Circulating Fluidized Bed.
4. the pressurised fluidized bed gasification burning turbine of a kind of biomass according to claim 1 association circulating power generation system, is characterized in that, described tar separator adopts telescoping quench gas liquid separating apparatus.
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| CN201320424249.6U CN203403070U (en) | 2013-07-16 | 2013-07-16 | Biomass pressurized fluidized-bed gasification gas turbine combined cycle power generation system |
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| CN201320424249.6U CN203403070U (en) | 2013-07-16 | 2013-07-16 | Biomass pressurized fluidized-bed gasification gas turbine combined cycle power generation system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103409171A (en) * | 2013-07-16 | 2013-11-27 | 南京师范大学 | Biomass pressurized fluidized bed gasification gas turbine combined cycle power generation system |
| CN105419881A (en) * | 2015-11-23 | 2016-03-23 | 北京时代博诚能源科技有限公司 | Co-generation method based on straw gas |
| CN105485652A (en) * | 2016-01-01 | 2016-04-13 | 广州环峰能源科技股份有限公司 | Full-sealed biomass control system |
| CN106988884A (en) * | 2017-03-24 | 2017-07-28 | 新奥科技发展有限公司 | Electricity-generating method and electricity generation system |
| CN109578961A (en) * | 2018-11-12 | 2019-04-05 | 北京国电龙源环保工程有限公司 | A kind of gasification of biomass coupling direct combustion power generation system and method |
| CN109652148A (en) * | 2018-12-29 | 2019-04-19 | 中国电力科学研究院有限公司 | A kind of thermoelectricity charcoal polygenerations systeme and its control method |
-
2013
- 2013-07-16 CN CN201320424249.6U patent/CN203403070U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103409171A (en) * | 2013-07-16 | 2013-11-27 | 南京师范大学 | Biomass pressurized fluidized bed gasification gas turbine combined cycle power generation system |
| CN105419881A (en) * | 2015-11-23 | 2016-03-23 | 北京时代博诚能源科技有限公司 | Co-generation method based on straw gas |
| CN105485652A (en) * | 2016-01-01 | 2016-04-13 | 广州环峰能源科技股份有限公司 | Full-sealed biomass control system |
| CN106988884A (en) * | 2017-03-24 | 2017-07-28 | 新奥科技发展有限公司 | Electricity-generating method and electricity generation system |
| CN109578961A (en) * | 2018-11-12 | 2019-04-05 | 北京国电龙源环保工程有限公司 | A kind of gasification of biomass coupling direct combustion power generation system and method |
| CN109652148A (en) * | 2018-12-29 | 2019-04-19 | 中国电力科学研究院有限公司 | A kind of thermoelectricity charcoal polygenerations systeme and its control method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20160716 |
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| CF01 | Termination of patent right due to non-payment of annual fee |