CN104419469A - Biomass downdraft fixed bed gasifier heat supply system - Google Patents
Biomass downdraft fixed bed gasifier heat supply system Download PDFInfo
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- CN104419469A CN104419469A CN201310375306.0A CN201310375306A CN104419469A CN 104419469 A CN104419469 A CN 104419469A CN 201310375306 A CN201310375306 A CN 201310375306A CN 104419469 A CN104419469 A CN 104419469A
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- furnace
- heater
- heat recovery
- recovery device
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
-
- 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
Abstract
The invention belongs to a biomass downdraft fixed bed gasifier heat supply system which comprises a primary stock bin (1), a secondary stock bin (3), and a gas storage device (9), and is characterized in that a downdraft gasifier body (4) is mounted below the secondary stock bin (3) and is communicated with a waste heat recovery device (6); an upper exhaust pipe of the waste heat recovery device (6) is communicated with a gas storage cylinder (27); a gas outlet pipe of the gas storage cylinder (27) is communicated with a spiral dedusting washing device (7); the upper end of the spiral dedusting washing device (7) is connected with a secondary oxygen supply port (22) and is communicated with a Roots frequency conversion fan (8); the upper end of the waste heat recovery device (6) is communicated with the gas storage cylinder (27) through a pipeline; the gas storage cylinder (27) is communicated with the spiral dedusting washing device (7) through a pipeline; the lower end of the waste heat recovery device (6) is communicated with a water vapor reduction hydrogen adding device (13) through a pipeline. The system of the invention is high in temperature in the gasifier, high in thermal efficiency, low in tar content, beneficial for environmental protection, low in equipment investment, high in heat production amount, and sufficient in fuel source.
Description
Technical field
The invention belongs to heating system, particularly inhale fixed-bed gasification furnace heating system under a kind of biomass.
Background technology
Since the dawn of human civilization, the mankind obtain heat energy and the main mode of kinetic energy is exactly a large amount of heat energy of being released by fuel and oxygen combustion, but just have today of shortage in resource, energy problem has become the primary strategic issue of world.From the fuel forms of the energy, geseous fuel, liquid fuel and solid fuel three kinds of forms can be divided into, and its corresponding fossil energy is Sweet natural gas, oil and coal.As everyone knows, fossil energy such as coal, oil, Sweet natural gas are Nonrenewable energy resources, and biomass energy is fixed on tellurian sun power by the photosynthesis of plant, are a kind of typical renewable energy sources.According to estimates, the energy equivalence that plant stores every year 10 times of consuming in world's main fuel.And be less than 1% of its total amount as the utilization of the energy, one of new new forms of energy that most possible one-tenth 21 worlds are main.Utilize biomass energy to replace the fuel such as coal, oil and natural gas, the dependence to fossil energy can be reduced, protect national Energy resources, alleviate the pollution that energy expenditure causes to environment.So the whole world is all in active development biomass energy, wherein gasifying biomass is the important directions of our times various countries energy research, for no other reason than that the problem of Present Domestic exogenous substances gasification technology in production cost, combustion gas quality etc. does not also solve completely, biological fuel gas is supplied and does not also popularize.
The main energy sources component of biomass is organic volatile matter and fixed carbon, biomass produce the materials such as inflammable gas, tar and residual carbon in heat-processed simultaneously, gasifying biomass for the purpose of production combustion gas is exactly that wanting as much as possible is combustion gas by Wood Adhesives from Biomass, and few generation does not even produce tar and residual carbon.
At present, the weak point that existing down-draft type gasifying furnace exists is: the shortcomings such as vaporization time is long, gas production rate is few, the tar of generation is many, energy consumption is high, due to the few calorific value low (flame temperature 750 DEG C ~ 850 DEG C) of gas production rate, large-scale industrial combustion gas and gas supply can not be applicable to.
Summary of the invention
The object of the invention is to overcome above-mentioned technical deficiency, provide a kind of in-furnace temperature high, tar content is low, and equipment investment is few, and quantity of heat production is high, inhales fixing vapourizing furnace heating system under the biomass of environmentally safe.
The technical scheme that technical solution problem of the present invention adopts is: inhale fixed-bed gasification furnace heating system under a kind of biomass, comprise a feed bin, secondary feed bin, helical feeder, water pump, Roots's frequency conversion fan and accumulator unit, it is characterized in that, below secondary feed bin, downdraft gasification body of heater is housed, the vapor pipe of downdraft gasification body of heater is communicated with waste-heat recovery device, the top vapor pipe of waste-heat recovery device is communicated with gas receiver, the escape pipe of gas receiver is communicated with spiral dedusting washing device, termination secondary oxygen supply port on spiral dedusting washing device is also communicated with Roots's frequency conversion fan, dedusting washing valve is equipped with in the lower end of spiral dedusting washing device, water level gauge two is equipped with in the upper end of waste-heat recovery device, the upper end pipeline of waste-heat recovery device is communicated with gas receiver, and gas receiver pipeline is communicated with spiral dedusting washing device, gas receiver venting port is housed below gas receiver, gas receiver venting port is equipped with valve, the lower end pipeline of waste-heat recovery device increases hydrogen production device with valve and aqueous vapour reducing and is communicated with, and the upper end that aqueous vapour reducing increases hydrogen production device is provided with inlet mouth, and inlet mouth can be communicated with combustible gas body cavity.
Described downdraft gasification body of heater bottom is contained in body of heater shell, and body of heater inner casing is equipped with in the inner side of body of heater shell, and flue shell is housed inside body of heater inner casing, inside flue shell, furnace outer wall is housed, inside furnace outer wall, inboard wall of furnace is housed; Combustible gas body cavity is configured with between body of heater shell and body of heater inner casing and between flue shell and furnace outer wall; Air-pre-heating cavity is formed between inboard wall of furnace and furnace outer wall and between flue shell and body of heater inner casing; Inboard wall of furnace upper end is fixed with refractory ceramics inboard wall of furnace, is provided with combustion chamber in refractory ceramics inboard wall of furnace; Furnace outer wall is equipped with air-pressure balancing device; Fuel chambers is provided with in downdraft gasification body of heater; Thermopair is equipped with in the left side of fuel chambers lower end and refractory ceramics inboard wall of furnace; High-pressure water heating steam cavity is located in the cone of flue shell lower end; Body of heater shell lower center place dress automatic slag discharge device.
The invention has the beneficial effects as follows: this invention in-furnace temperature is high, can reach 950 DEG C ~ 1100 DEG C, thermo-efficiency is high, and tar is low, is conducive to environmental protection, and the low quantity of heat production of equipment investment is high, and fuel can regenerate, and source fully.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, illustrate with embodiment.
Fig. 1 inhales fixed-bed gasification furnace heating system schematic diagram under biomass;
Fig. 2 is the downdraft gasification furnace binding figure in Fig. 1.
In figure: 1-feed bin; 2-helical feeder; 3-bis-feed bins; 4-downdraft gasification body of heater; 4-1-body of heater shell; 4-2-body of heater inner casing; 4-3-flue shell; 4-4-furnace outer wall; 4-5-inboard wall of furnace; 4-6-refractory ceramics inboard wall of furnace; 4-7-combustion chamber; 4-8-air-pre-heating cavity; 4-9-high-pressure steam chamber; 4-10-combustible gas body cavity; 4-11-thermopair; 4-12-leg; 4-13-air-pressure balancing device; 4-14-fuel chambers; 5-vapor pipe; 6-waste-heat recovery device; 7-spiral dedusting washing device; 8-Roots frequency conversion fan; 9-accumulator unit; 10-automation control system; 11-automated ignition device; 12-automatic slag discharge device; 13-aqueous vapour reducing increases hydrogen production device; 14-water pump; 15-tank; 16-thermometer; 17-tensimeter; 18-safety valve; 19-water level gauge one; 20-thermometer; 21-water level gauge two; 22-bis-oxygen supply ports; 23-eduction pipe; 24-valve; 25-bis-ventilation channels; 26-dedusting washing valve; 27-gas receiver; 28-gas receiver venting port; 29-inlet mouth.
Embodiment
Embodiment, with reference to accompanying drawing, fixed-bed gasification furnace heating system is inhaled under a kind of biomass, comprise a feed bin 1, secondary feed bin 3, helical feeder 2, water pump 14, Roots's frequency conversion fan 8 and accumulator unit 9, it is characterized in that, below secondary feed bin 3, downdraft gasification body of heater 4 is housed, the vapor pipe 5 of downdraft gasification body of heater 4 is communicated with waste-heat recovery device 6, the top vapor pipe of waste-heat recovery device 6 is communicated with gas receiver 27, the escape pipe of gas receiver 27 is communicated with spiral dedusting washing device 7, termination secondary oxygen supply port 22 on spiral dedusting washing device 7 is also communicated with Roots's frequency conversion fan 8, dedusting washing valve 26 is equipped with in the lower end of spiral dedusting washing device 7, water level gauge 2 21 is equipped with in the upper end of waste-heat recovery device 6, the upper end pipeline of waste-heat recovery device 6 is communicated with gas receiver 27, and gas receiver 27 pipeline is communicated with spiral dedusting washing device 7, gas receiver 27 is equipped with gas receiver venting port 28 below, and gas receiver venting port 28 is equipped with valve, the lower end pipeline of waste-heat recovery device 6 increases hydrogen production device 13 with valve and aqueous vapour reducing and is communicated with, and the upper end that aqueous vapour reducing increases hydrogen production device 13 is provided with inlet mouth 29, and inlet mouth 29 is communicated with combustible gas body cavity 4-10.
Described downdraft gasification body of heater 4 bottom is contained in body of heater shell 4-1, body of heater inner casing 4-2 is equipped with in the inner side of body of heater shell 4-1, flue shell 4-3 is housed inside body of heater inner casing 4-2, inside flue shell 4-3, furnace outer wall 4-4 is housed, inboard wall of furnace 4-5 is housed inside furnace outer wall 4-4; Combustible gas body cavity 4-10 is configured with between body of heater shell 4-1 and body of heater inner casing 4-2 and between flue shell 4-3 and furnace outer wall 4-4; Air-pre-heating cavity 4-8 is formed between inboard wall of furnace 4-5 and furnace outer wall 4-4 and between flue shell 4-3 and body of heater inner casing 4-2; Inboard wall of furnace 4-5 upper end is fixed with refractory ceramics inboard wall of furnace 4-6, establishes combustion chamber 4-7 in refractory ceramics inboard wall of furnace 4-6; Furnace outer wall 4-4 is equipped with air-pressure balancing device 4-12; Fuel chambers 4-14 is provided with in downdraft gasification body of heater 4; Thermopair 4-11 is equipped with in the left side of fuel chambers 4-14 lower end and refractory ceramics inboard wall of furnace 4-6; High-pressure water heating steam cavity 4-9 is located in the cone of flue shell 4-3 lower end; Body of heater shell 4-1 lower center place dress automatic slag discharge device 12.The upper right end of body of heater shell 4-1 is equipped with safety valve 18 and water level gauge 1, and tensimeter 17 and thermometer 16 are equipped with in left side, are communicated with water pump 14 with pipeline, and water pump 14 pipeline is communicated with tank 15; Centre, the right side vapor pipe 5 of body of heater shell 4-1 is communicated with waste-heat recovery device 6; Body of heater shell left lower secondary ventilation channel 25 is communicated with accumulator unit 9 with Roots's frequency conversion fan 8, pipeline is equipped with valve 24; The lower left side of body of heater shell 4-1 is equipped with automatic firing mechanism 11, and automatic slag discharge device 12 is equipped with in bottom; Pipeline between Roots's frequency conversion fan 8 with accumulator unit 9 is connected one and abandons pipe 23, it is equipped with valve 24.
The working process of this vapourizing furnace heating system: biomass fuel is contained in a feed bin 1, is transported to secondary feed bin 3 with helical feeder 2, refills in the fuel chambers 4-13 of downdraft gasification body of heater.Open water pump 14 and Roots's frequency conversion fan 8, normal air feed can be started by automatic firing mechanism 11 fire fuel.The secondary combustion of this system due to tar and the recovery of waste heat, improve the thermo-efficiency of stove, makes temperature reach 1200 DEG C, fuel saving, be conducive to environment protection.Be widely used, can generate electricity, the demand of city heat supply and factory's thermal source.
Claims (2)
1. inhale fixed-bed gasification furnace heating system under biomass, comprise a feed bin (1), secondary feed bin (3), helical feeder (2), water pump (14), Roots's frequency conversion fan (8) and accumulator unit (9), it is characterized in that, in secondary feed bin (3) below, downdraft gasification body of heater (4) is housed, the vapor pipe (5) of downdraft gasification body of heater (4) is communicated with waste-heat recovery device (6), the top vapor pipe of waste-heat recovery device (6) is communicated with gas receiver (27), the escape pipe of gas receiver (27) is communicated with spiral dedusting washing device (7), the upper termination secondary oxygen supply port (22) of spiral dedusting washing device (7) is also communicated with Roots's frequency conversion fan (8), dedusting washing valve (26) is equipped with in the lower end of spiral dedusting washing device (7), water level gauge two (21) is equipped with in the upper end of waste-heat recovery device (6), the upper end pipeline of waste-heat recovery device (6) is communicated with gas receiver (27), and gas receiver (27) pipeline is communicated with spiral dedusting washing device (7), gas receiver (27) is equipped with gas receiver venting port (28) below, and (28) are equipped with valve to gas receiver venting port, lower end pipeline and valve and the aqueous vapour reducing of waste-heat recovery device (6) increase hydrogen production device (13) and are communicated with, and the upper end that aqueous vapour reducing increases hydrogen production device (13) is provided with inlet mouth (29), and inlet mouth (29) is communicated with combustible gas body cavity (4-10).
2. inhale fixed-bed gasification furnace heating system under biomass according to claim 1, it is characterized in that described downdraft gasification body of heater (4) bottom is contained in body of heater shell (4-1), body of heater inner casing (4-2) is equipped with in the inner side of body of heater shell (4-1), flue shell (4-3) is equipped with in body of heater inner casing (4-2) inner side, furnace outer wall (4-4) is equipped with in flue shell (4-3) inner side, and inboard wall of furnace (4-5) is equipped with in furnace outer wall (4-4) inner side; Combustible gas body cavity (4-10) is configured with between body of heater shell (4-1) and body of heater inner casing (4-2) and between flue shell (4-3) and furnace outer wall (4-4); Air-pre-heating cavity (4-8) is formed between inboard wall of furnace (4-5) and furnace outer wall (4-4) and between flue shell (4-3) and body of heater inner casing (4-2); Inboard wall of furnace (4-5) upper end is fixed with refractory ceramics inboard wall of furnace (4-6), establishes combustion chamber (4-7) in refractory ceramics inboard wall of furnace (4-6); Furnace outer wall (4-4) is equipped with air-pressure balancing device (4-13); Fuel chambers (4-14) is provided with in downdraft gasification body of heater (4); Thermopair (4-11) is equipped with in the left side of fuel chambers (4-14) lower end and refractory ceramics inboard wall of furnace (4-6); High-pressure water heating steam cavity (4-9) is located in the cone of flue shell (4-3) lower end; Body of heater shell (4-1) lower center place dress automatic slag discharge device (12).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310375306.0A CN104419469A (en) | 2013-08-27 | 2013-08-27 | Biomass downdraft fixed bed gasifier heat supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310375306.0A CN104419469A (en) | 2013-08-27 | 2013-08-27 | Biomass downdraft fixed bed gasifier heat supply system |
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| CN104419469A true CN104419469A (en) | 2015-03-18 |
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| CN201310375306.0A Pending CN104419469A (en) | 2013-08-27 | 2013-08-27 | Biomass downdraft fixed bed gasifier heat supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142122A (en) * | 2017-07-05 | 2017-09-08 | 李宏江 | Underground HTHP biomass fuel process units |
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| CN2433258Y (en) * | 2000-10-11 | 2001-06-06 | 北京领科技术研究中心 | Biological gas straw high-efficient gasification furnace |
| CN1528656A (en) * | 2003-10-16 | 2004-09-15 | 中国科学院广州能源研究所 | Method and apparatus for catalytic preparation of hydrogen by biomass down-draft gasifying stove |
| JP2006232904A (en) * | 2005-02-23 | 2006-09-07 | Hitachi Ltd | Gas refining method for coal gasification system |
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| CN201722344U (en) * | 2010-06-28 | 2011-01-26 | 武汉海德新能源投资有限公司 | Biomass gas preparing apparatus |
| CN102559289A (en) * | 2011-12-29 | 2012-07-11 | 武汉凯迪工程技术研究总院有限公司 | Biomass synthesis gas cooling and washing process and system |
| CN203451491U (en) * | 2013-08-27 | 2014-02-26 | 大连明佳金属制品有限公司 | Heating supply system of biomass down-draft type fixed-bed gasification furnace |
-
2013
- 2013-08-27 CN CN201310375306.0A patent/CN104419469A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2433258Y (en) * | 2000-10-11 | 2001-06-06 | 北京领科技术研究中心 | Biological gas straw high-efficient gasification furnace |
| CN1528656A (en) * | 2003-10-16 | 2004-09-15 | 中国科学院广州能源研究所 | Method and apparatus for catalytic preparation of hydrogen by biomass down-draft gasifying stove |
| JP2006232904A (en) * | 2005-02-23 | 2006-09-07 | Hitachi Ltd | Gas refining method for coal gasification system |
| CN101649226A (en) * | 2009-09-11 | 2010-02-17 | 北京震宇成套电气设备集团 | Method for preparing fuel gas by gasifying biomass materials and device thereof |
| CN201722344U (en) * | 2010-06-28 | 2011-01-26 | 武汉海德新能源投资有限公司 | Biomass gas preparing apparatus |
| CN102559289A (en) * | 2011-12-29 | 2012-07-11 | 武汉凯迪工程技术研究总院有限公司 | Biomass synthesis gas cooling and washing process and system |
| CN203451491U (en) * | 2013-08-27 | 2014-02-26 | 大连明佳金属制品有限公司 | Heating supply system of biomass down-draft type fixed-bed gasification furnace |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107142122A (en) * | 2017-07-05 | 2017-09-08 | 李宏江 | Underground HTHP biomass fuel process units |
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Application publication date: 20150318 |