CN204529764U - A kind of biogas fluidized bed gasification producing synthesis gas small test device - Google Patents
A kind of biogas fluidized bed gasification producing synthesis gas small test device Download PDFInfo
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- CN204529764U CN204529764U CN201520089987.9U CN201520089987U CN204529764U CN 204529764 U CN204529764 U CN 204529764U CN 201520089987 U CN201520089987 U CN 201520089987U CN 204529764 U CN204529764 U CN 204529764U
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- bed gasification
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Abstract
The utility model discloses a kind of biogas fluidized bed gasification producing synthesis gas small test device.Nitrogengas cylinder is connected to airflow bed gasification furnace through nitrogen mass flow controllers, Pneumatic feeding device; Oxygen cylinder is connected one-level preheater with nitrogengas cylinder after oxygen quality flow director, one-level preheater and steam generator connecting tee valve, T-valve connects secondary preheater, secondary preheater is connected to airflow bed gasification furnace, bottom it, chilled water is housed, the pneumatic outlet of entrained flow gasification furnace bottom is connected to off-gas pump through cyclonic separator, condenser, strainer, and off-gas pump connects online gas analysis meter; Thermopair and pressure warning unit airflow bed gasification furnace be equipped with.The advantages such as the utility model device has that temperature of reaction is high, biomass efficient transforms, ash content is few in synthetic gas, tar content is few, can meet biogas fluidized bed gasification experimental study.
Description
Technical field
The utility model relate to a kind of device of producing synthesis gas, especially relate to a kind of biogas fluidized bed gasification producing synthesis gas small test device.
Background technology
Gasifying biomass biomass solid raw material is placed in vapourizing furnace is translated into geseous fuel and synthesis gas process by pyrolysis and chemical reaction, it can make Wood Adhesives from Biomass become high-grade fuel effectively, alleviates the shortage of current conventional energy resources and the pressure that brings of environmental pollution.
At present, technological line mainly fixed bed gasification and the fluidized-bed gasification of gasifying biomass producing synthesis gas, the vapourizing furnace adopted is mainly based on fixed-bed gasification furnace and fluidized-bed gasification furnace.In fixed bed gasification, because gasification reaction temperature is low, make gasification efficiency not high, fuel gases calorific value is low, and the coal-tar middle oil content of combustion gas is high, and tar removing is the difficult point of its gasification technology.In fluidized-bed gasification, although it is wide to have suitability of fuel, gasification efficiency is higher, the advantage that production intensity is higher, but due to fluidized-bed temperature also not high (fluidizing medium existence), make the coal-tar middle oil content of combustion gas higher, fuel gases calorific value is lower, have impact on the Efficient Conversion of material.
Utility model content
Low in order to solve temperature of reaction in above-mentioned gasification, the problems such as transformation efficiency is not high, and fuel gases calorific value is low, and tar content is higher, the utility model proposes a kind of biogas fluidized bed gasification producing synthesis gas small test device.
The technical solution adopted in the utility model is as follows:
The utility model comprises nitrogengas cylinder, oxygen cylinder, one-level preheater, secondary preheater, steam generator, Pneumatic feeding device, airflow bed gasification furnace, cyclonic separator, condenser, strainer, off-gas pump and online gas analysis meter; Nitrogengas cylinder connects Pneumatic feeding device through nitrogen mass flow controllers, and Pneumatic feeding device is connected to the burner hearth of airflow bed gasification furnace; Oxygen cylinder is connected to one-level preheater after oxygen quality flow director together with nitrogengas cylinder, one-level preheater is connected to the input terminus of T-valve together with steam generator, an output terminal of T-valve connects secondary preheater, another output terminal of T-valve is as the outlet for evacuate air, and secondary preheater is connected to the furnace mouth of airflow bed gasification furnace; Entrained flow gasification furnace bottom is equipped with the chilled water for cooling gas, and the pneumatic outlet of entrained flow gasification furnace bottom is connected to off-gas pump through cyclonic separator, condenser, strainer, and delivery side of pump of bleeding connects online gas analysis meter; Uniformly on the sidewall of airflow bed gasification furnace be provided with thermopair, the bottom of airflow bed gasification furnace is provided with pressure warning unit.
Described airflow bed gasification furnace comprises honeycomb screen, tubular type globars, alundum tube and forming ceramic fiber, the burner hearth of airflow bed gasification furnace adopts alundum tube, three parallel tubular type globarss be distributed in outside alundum tube side face are provided with outside alundum tube, alundum tube top entry is provided with honeycomb screen, pass into bottom alundum tube in chilled water, the exterior forming ceramic fiber had for being incubated of tubular type globars.
Described airflow bed gasification furnace bottom gas exit is provided with thermopair.
Described airflow bed gasification furnace adopts heat zone stream bed gasification furnace.
Described nitrogengas cylinder is connected to one-level preheater through under meter.
The chilled water that described airflow bed gasification furnace bottom sides is provided with for chilled water circulation exports and chilled water import.
The delivery port of described Pneumatic feeding device is connected to airflow bed gasification furnace internal furnace through pipeline through the honeycomb screen being connected to airflow bed gasification furnace.
Described tubular type globars is vertically uniform is equipped with thermopair.
Described thermopair is connected to for temperature controlled temperature control system.
The utility model is that the test of gasifying biomass producing synthesis gas proposes new mode, has the advantages such as continuous micro feed, vapourizing furnace temperature of reaction are high, biomass efficient transforms, and in synthetic gas, ash content is few, and tar content is few.
First, biological particles is blown into by top of gasification furnace through Pneumatic feeding device by First air carrier gas (nitrogen); And carried secretly to enter in high-temperature gasification stove carried out rapid cleavage, burning, gasification reaction by the secondary air (water vapour, oxygen and air etc.) through preheating immediately; Then, from vapourizing furnace high-temperature fuel gas out through the chilled water cooling of furnace bottom and rough dusting, enter into purification system (comprising dedusting, dehumidifying etc.) and carry out purifying treatment again, obtain biomass synthesis gas; Carbon residue is then collected by the carbon residue gathering system of outlet at bottom; Finally, synthetic gas is introduced in online gas analysis system again, carries out the on-line analysis of gas composition.
The vaporized chemical be blown into by top of gasification furnace, by regulating vaporized chemical flow and honeycomb screen rectification, can make the flowing in burner hearth be strict laminar flow, enables particle remain on burner hearth axis in one narrow jet, avoids particles splatter or diffusion; Vapourizing furnace burner hearth adopts alundum tube, high temperature resistant;
The type of heating of vapourizing furnace is by the tubular type globars heating outside alundum tube, and this vapourizing furnace maximum operating temperature can meet entrained flow gasification requirement; Tubular type globars external insulation material is forming ceramic fiber, effectively can play insulation effect.
The beneficial effects of the utility model are:
The problems such as it is low that the utility model solves temperature of reaction in gasification, and transformation efficiency is not high, and fuel gases calorific value is low, and tar content is higher.
The utility model device adopts heat zone stream bed gasification furnace, has the advantages such as temperature of reaction is high, transformation efficiency is high, and synthetic gas ash content is few, and tar content is few.Therefore, the utility model is that gasifying biomass producing synthesis gas proposes technical strategies, and substance air flow bed of also making a living gasification research provides better test platform.
Accompanying drawing explanation
Fig. 1 is johning knot composition of the present utility model.
Fig. 2 is the longitudinal section structural map of the utility model airflow bed gasification furnace.
In figure: 1-nitrogengas cylinder, 2-oxygen cylinder 3-nitrogen mass flow controllers, 4-oxygen quality flow director 5-one-level preheater, 6-T-valve 7-secondary preheater 8-steam generator, 9-Pneumatic feeding device, 10-airflow bed gasification furnace, 11-temperature control system, 12-chilled water exports, the import of 13-chilled water, 14-cyclonic separator, 15-condenser, 16-strainer, 17-off-gas pump, the online gas analysis meter of 18-, 19-honeycomb screen, 20-tubular type globars, 21-forming ceramic fiber, 22-alundum tube 23-chilled water, 24-under meter, 25-thermopair, 26-pressure warning unit.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, the utility model comprises nitrogengas cylinder 1, oxygen cylinder 2, one-level preheater 5, secondary preheater 7, steam generator 8, Pneumatic feeding device 9, airflow bed gasification furnace 10, cyclonic separator 14, condenser 15, strainer 16, off-gas pump 17 and online gas analysis meter 18; Nitrogengas cylinder 1 connects Pneumatic feeding device 9 through nitrogen mass flow controllers 3, and Pneumatic feeding device 9 is connected to the burner hearth of airflow bed gasification furnace 10, and burner hearth is middle part in airflow bed gasification furnace 10; Oxygen cylinder 2 is connected to one-level preheater 5 after oxygen quality flow director 4 together with nitrogengas cylinder 1, nitrogengas cylinder 1 can be connected to one-level preheater 5 through under meter 24, the flow of under meter 24 measurement gas input, one-level preheater 5 is connected to the input terminus of T-valve 6 together with steam generator 8, an output terminal of T-valve 6 connects secondary preheater 7, another output terminal of T-valve 6 is as the outlet for evacuate air, and secondary preheater 7 is connected to the furnace mouth of airflow bed gasification furnace 10; Chilled water for cooling gas is housed bottom airflow bed gasification furnace 10, and the pneumatic outlet bottom airflow bed gasification furnace 10 is connected to off-gas pump 17 through cyclonic separator 14, condenser 15, strainer 16, and the output terminal of off-gas pump 17 connects online gas analysis meter 18; Uniformly on the sidewall of airflow bed gasification furnace 10 be provided with thermopair 25, the bottom of airflow bed gasification furnace 10 is provided with the pressure warning unit 26 for detecting furnace pressure, and pressure warning unit 26 is arranged on sidewall bottom airflow bed gasification furnace 10.
As shown in Figure 2, airflow bed gasification furnace 10 comprises honeycomb screen 19, tubular type globars 20, alundum tube 22 and forming ceramic fiber 21, the burner hearth of airflow bed gasification furnace 10 adopts alundum tube 22, alundum tube 22 is connected to top entry and outlet at bottom, three parallel tubular type globarss 20 be distributed in outside alundum tube 22 side face are provided with outside alundum tube 22, alundum tube 22 top entry is provided with honeycomb screen 19, pass in chilled water 23 bottom alundum tube 22, the exterior forming ceramic fiber 21 had for being incubated of tubular type globars 20.
Airflow bed gasification furnace 10 bottom gas exit can be provided with thermopair 25, and tubular type globars 20 is vertically uniform is equipped with thermopair 25, and thermopair 25 is connected to for temperature controlled temperature control system 11.
Preferred airflow bed gasification furnace 10 can adopt heat zone stream bed gasification furnace.
The chilled water that airflow bed gasification furnace 10 bottom sides is provided with for chilled water circulation exports 12 and chilled water import 13, and chilled water outlet 12 is positioned at below chilled water import 13.
The delivery port of Pneumatic feeding device 9 is connected to airflow bed gasification furnace 10 internal furnace through pipeline through the honeycomb screen 19 being connected to airflow bed gasification furnace 10, and burner hearth is middle part in airflow bed gasification furnace 10, and it exports gas without honeycomb screen 19.The delivery port of secondary preheater 7 is connected to furnace mouth, and its gas need through honeycomb screen 19.
Biomass solid raw material can be injected in vapourizing furnace and be translated into synthetic gas by pyroreaction by the utility model.Wherein, vapourizing furnace adopts self-control heat zone stream bed gasification furnace, and feeding device is the Pneumatic feeding device with continuous-feeding of can stablizing of designed, designed.The utility model gasification route is: biological particles is sprayed into by top of gasification furnace through Pneumatic feeding device by First air carrier gas, and reacts by carrying secretly to enter in high-temperature gasification stove through the secondary air of preheating immediately; Then, high-temperature fuel gas enters into purification system carry out purifying treatment through the chilled water cooling of furnace bottom, thus obtains synthetic gas; Finally, synthetic gas is aspirated by off-gas pump and enters into online gas analysis meter, carries out the analysis of gas component.
Concrete implementation process of the present utility model is as follows:
In the embodiment shown in fig. 1, online gas analysis meter 18 adopts siemens MICROSAM type gas chromatographicanalyzer, and temperature control system 11 adopts auspicious one-tenth ZNGW-1000 type temperature controller.First, before on-test, open nitrogengas cylinder 1 pipe valve, through one-level preheater 5, secondary preheater 7, enters airflow bed gasification furnace 10 burner hearth and purges, residual air is blown out; Then, under the control of temperature control system 11, airflow bed gasification furnace 10 is heated up, when temperature reaches predetermined temperature of reaction, conversion nitrogengas cylinder 1 pipeline, make nitrogen enter as carrier gas in Pneumatic feeding device 9 after mass flow controller 3 measures, biological particles is injected to high-temperature entrained flow gasification stove 10 and reacts; Simultaneously, open oxygen cylinder 2 pipe valve, make vaporized chemical oxygen after mass flow controller 4 measures, by one-level preheater 5, T-valve 6, T-valve can control the inlet of vaporized chemical preferably, secondary preheater 7, enter in airflow bed gasification furnace 10 burner hearth and carry out gasification reaction with biological particles, if gasified reverse should have water vapour to participate in, then vapour generator 8 of will simultaneously fetching boiling water, the water vapour making it produce is also through T-valve 6, secondary preheater 7, enters in the lump in airflow bed gasification furnace 10 with oxygen and carries out gasification reaction; Finally, the high-temperature fuel gas that reaction produces is first through chilled water Quench and the rough dusting of burner hearth bottom, after by outlet at bottom, through cooling and the purification further of cyclonic separator 14, condenser 15, strainer 16, the comparatively clean combustion gas obtained enters into online gas analysis meter 18 by off-gas pump 17 again, carry out the analysis of gas component, the chilled water of burner hearth bottom is then circulated by chilled water outlet 12, chilled water import 13.
In Fig. 2, the vaporized chemical be blown into by top of gasification furnace, first through honeycomb screen 19 rectification, then the alundum tube 22 entering into heat carries out gasification reaction with biological particles, and final high temperature combustion gas, by after chilled water 23, leaves vapourizing furnace, by regulating vaporized chemical flow and honeycomb screen rectification, the flowing in burner hearth can be made to be strict laminar flow regime, and object enables particle remain on burner hearth axis in one narrow jet, avoids particles splatter or diffusion and affect reaction accuracy; The type of heating of vapourizing furnace is that 3 tubular type globarss 20 be distributed in outside alundum tube 22 heat; Vapourizing furnace burner hearth outside is incubated by forming ceramic fiber 21, effectively can play insulation effect.
Thus, the utility model the most at last biomass solid raw material is injected in vapourizing furnace and is translated into synthetic gas by pyroreaction, advantages such as having that temperature of reaction is high, biomass efficient transforms, ash content is few in synthetic gas, tar content is few, biogas fluidized bed gasification experimental study can be met, there is outstanding significant technique effect.
Above-mentioned embodiment is used for explaining and the utility model is described; instead of the utility model is limited; in the protection domain of spirit of the present utility model and claim, any amendment make the utility model and change, all fall into protection domain of the present utility model.
Claims (9)
1. a biogas fluidized bed gasification producing synthesis gas small test device, is characterized in that: comprise nitrogengas cylinder (1), oxygen cylinder (2), one-level preheater (5), secondary preheater (7), steam generator (8), Pneumatic feeding device (9), airflow bed gasification furnace (10), cyclonic separator (14), condenser (15), strainer (16), off-gas pump (17) and online gas analysis meter (18);
Nitrogengas cylinder (1) connects Pneumatic feeding device (9) through nitrogen mass flow controllers (3), and Pneumatic feeding device (9) is connected to the burner hearth of airflow bed gasification furnace (10); Oxygen cylinder (2) is connected to one-level preheater (5) after oxygen quality flow director (4) together with nitrogengas cylinder (1), one-level preheater (5) is connected to the input terminus of T-valve (6) together with steam generator (8), an output terminal of T-valve (6) connects secondary preheater (7), another output terminal of T-valve (6) is as the outlet for evacuate air, and secondary preheater (7) is connected to the furnace mouth of airflow bed gasification furnace (10);
The chilled water for cooling gas is equipped with in airflow bed gasification furnace (10) bottom, the pneumatic outlet of airflow bed gasification furnace (10) bottom is connected to off-gas pump (17) through cyclonic separator (14), condenser (15), strainer (16), and the output terminal of off-gas pump (17) connects online gas analysis meter (18); Uniformly on the sidewall of airflow bed gasification furnace (10) be provided with thermopair (25), the bottom of airflow bed gasification furnace (10) is provided with pressure warning unit (26).
2. a kind of biogas fluidized bed gasification producing synthesis gas small test device according to claim 1, it is characterized in that: described airflow bed gasification furnace (10) comprises honeycomb screen (19), tubular type globars (20), alundum tube (22) and forming ceramic fiber (21), the burner hearth of airflow bed gasification furnace (10) adopts alundum tube (22), alundum tube (22) outside is provided with three parallel tubular type globarss (20) be distributed in outside alundum tube (22) side face, alundum tube (22) top entry is provided with honeycomb screen (19), alundum tube (22) bottom passes in chilled water (23), the exterior forming ceramic fiber (21) had for being incubated of tubular type globars (20).
3. a kind of biogas fluidized bed gasification producing synthesis gas small test device according to claim 1, is characterized in that: described airflow bed gasification furnace (10) bottom gas exit is provided with thermopair (25).
4. a kind of biogas fluidized bed gasification producing synthesis gas small test device according to claim 1, is characterized in that: described airflow bed gasification furnace (10) adopts heat zone stream bed gasification furnace.
5. a kind of biogas fluidized bed gasification producing synthesis gas small test device according to claim 1, is characterized in that: described nitrogengas cylinder (1) is connected to one-level preheater (5) through under meter (24).
6. a kind of biogas fluidized bed gasification producing synthesis gas small test device according to claim 1, is characterized in that: described airflow bed gasification furnace (10) bottom sides is provided with chilled water outlet (12) and chilled water import (13) for chilled water circulation.
7. a kind of biogas fluidized bed gasification producing synthesis gas small test device according to claim 2, is characterized in that: the delivery port of described Pneumatic feeding device (9) is connected to airflow bed gasification furnace (10) internal furnace through pipeline through the honeycomb screen (19) being connected to airflow bed gasification furnace (10).
8. a kind of biogas fluidized bed gasification producing synthesis gas small test device according to claim 2, is characterized in that: described tubular type globars (20) is vertically uniform is equipped with thermopair (25).
9. a kind of biogas fluidized bed gasification producing synthesis gas small test device according to claim 1, is characterized in that: described thermopair (25) is connected to for temperature controlled temperature control system (11).
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105176593A (en) * | 2015-10-09 | 2015-12-23 | 廊坊德基机械科技有限公司 | Anti-coking control system and method for coal gasifier of entrained-flow bed |
| CN114669394A (en) * | 2022-03-29 | 2022-06-28 | 西安西热锅炉环保工程有限公司 | Centralized biomass fuel material loading of environmental protection, screening and negative pressure dust collection system |
-
2015
- 2015-02-09 CN CN201520089987.9U patent/CN204529764U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105176593A (en) * | 2015-10-09 | 2015-12-23 | 廊坊德基机械科技有限公司 | Anti-coking control system and method for coal gasifier of entrained-flow bed |
| CN114669394A (en) * | 2022-03-29 | 2022-06-28 | 西安西热锅炉环保工程有限公司 | Centralized biomass fuel material loading of environmental protection, screening and negative pressure dust collection system |
| CN114669394B (en) * | 2022-03-29 | 2024-05-07 | 西安西热锅炉环保工程有限公司 | Environment-friendly centralized biomass fuel feeding, screening and negative pressure dust collecting system |
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Granted publication date: 20150805 Termination date: 20210209 |
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