CN201525826U - High-temperature straw gasification furnace - Google Patents
High-temperature straw gasification furnace Download PDFInfo
- Publication number
- CN201525826U CN201525826U CN200920172070XU CN200920172070U CN201525826U CN 201525826 U CN201525826 U CN 201525826U CN 200920172070X U CN200920172070X U CN 200920172070XU CN 200920172070 U CN200920172070 U CN 200920172070U CN 201525826 U CN201525826 U CN 201525826U
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- fuel gas
- heat exchanger
- flue
- furnace
- heat
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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
- 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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- Solid-Fuel Combustion (AREA)
Abstract
The utility model relates to the technical field of straw utilization, in particular to a device adopting straw to prepare fuel gas. The device mainly comprises a furnace container, a reverse heat exchanger, a primary tangential air inlet, a secondary air inlet, a fire grate, a primary tangential fuel gas outlet, a heat conducting rod, a secondary tangential fuel gas outlet, a central baffle, an upper end cover, a lower end cover and a drain outlet; the device is characterized in that: the furnace container is externally provide with the reverse heat exchanger which is used for cooling of the fuel gas and preheating of the air, thus realizing the condition of high-temperature straw gasification in the furnace; furthermore, the heat conducting rod arranged in the furnace container can transfer heat of an oxidation zone in the furnace to a thermal decomposition zone, thus raising the reaction temperature of straw gasification, reducing tar content in the fuel gas, and improving the conversion rate and fuel gas heat value. The high-temperature straw gasification furnace has the characteristics of automatic preheating, automatic heat preservation, automatic cooling, lower energy consumption, high conversion rate, high heat value of generated fuel gas, and low tar content, and can be used for various crop straws such as corn, wheat and the like to produce fuel gas, thus being suitable for use in rural families.
Description
Technical field:
The utility model belongs to stalk can utilize technical field, particularly adopts stalk to prepare the device of combustion gas.
Background technology:
In recent years, it is commonplace that the agricultural crop straw phenomenon is burned in some areas, rural area, and not only contaminate environment, harm health of the masses, serious threat traffic safety are also wasted resource.Prohibit burning and improve rural energy structure and ecological environment problem for solving stalk, various stalk gasifiers occurred.Mainly contain two types of fixed bed, fluidized-beds at present.Wherein, fixed-bed gasification furnace because of its have simple in structure, make easy, cheap, processing ease, be applicable to advantages such as bulk and macrobead raw material, be fit to China rural area and use.But the vapourizing furnace of the type, because structure problem, its gasification efficiency and fuel gases calorific value are on the low side, and the tar content in the combustion gas is higher, condensed tar can be deposited on pipeline, utility model, instrument, the gas-cooker, destroys the normal operation of system.
The utility model content:
In order to overcome present the problems referred to above, the utility model improves existing fixed bed updraft type vapourizing furnace, designs a kind of stalk high-temperature gasification stove, can effectively improve gasification efficiency, reduces the influence to gas pipe line of power loss and tar.
The stalk gasifier that the utility model adopted mainly comprises flue, reverse heat exchanger, tangential entry of air, air secondary import, fire grate, combustion gas be tangentially outlet once, heat conductive rod, and gas secondary tangentially exports, center baffle, upper end cover, lower end cover, sewage draining exit; Feature is that flue is outside equipped with reverse heat exchanger, is used for cooling, the preheating of air of combustion gas, realizes stalk high-temperature gasification condition in the stove; And the heat conductive rod that is provided with in the flue can be passed to the pyrolysis zone with the heat of oxidation zone in the stove, improves the gasifying stalk temperature of reaction, can reduce the coal-tar middle oil content of straw fuel gas, improves transformation efficiency and fuel gases calorific value.A kind of stalk high-temperature gasification of the utility model stove, possess from preheating, self-heat conserving, cooling certainly, simple in structure, energy consumption is low, stable etc. advantage, can realize the preparation of high heating value, low tar combustion gas.
Characteristics of the present utility model are that also flue (1) all has the convergent mouth in two ends up and down.
The beneficial effects of the utility model are:
1) outside reverse heat exchanger can be realized the high-temperature gasification of stalk on the one hand to the cooling of preheating of air and combustion gas, reduces tar content, improves fuel gases calorific value; The waste heat that has effectively utilized combustion gas to carry has reduced energy consumption on the other hand, and can realize safe, the convenient conveying of combustion gas.
3) the vapourizing furnace outermost is a normal temperature premixed gas air inlet layer, and temperature is near room temperature, and heat lost by radiation is zero substantially, only needs the both ends of the surface up and down of vapourizing furnace are incubated, and greatly reduces the insulation requirement of stalk high-temperature gasification.
4) in the flue of vapourizing furnace heat conductive rod is set, the heat of oxidation zone in the stove can be passed to the pyrolysis zone, can prevent effectively that the oxidation zone temperature is too high on the one hand, generate the heating power oxynitride; Can improve the temperature of reaction of pyrolysis zone on the other hand, avoid tar to generate.
5) the higher temperature of combustion in central section can be expanded the combustion limits of stalk, reduces the heat supply consumption of stalk, improves transformation efficiency.
Description of drawings:
Fig. 1 is a kind of stalk high-temperature gasification of the utility model stove synoptic diagram.
Fig. 2 is that a kind of stalk high-temperature gasification of the utility model stove is imported and exported the level attitude drawing in side sectional elevation.
1 is flue, and 2 is reverse heat exchanger, and 3 is tangential entry of air, and 4 is bearing, and 5 is the air secondary import, 6 is lower end cover, and 7 is sewage draining exit, and 8 is fire grate, and 9 tangentially export for gas secondary, 10 are once tangentially outlet of combustion gas, and 11 is heat conductive rod, and 12 is upper end cover, and 13 is center baffle.
Embodiment:
Further specify the embodiment of the utility model stalk high-temperature gasification stove below in conjunction with accompanying drawing.
A kind of stalk high-temperature gasification of the utility model stove mainly comprises flue (1) as shown in Figure 1 and Figure 2, reverse heat exchanger (2), a tangential entry of air (3), air secondary import (5), fire grate (8), combustion gas is tangentially outlet (10) once, heat conductive rod (11), gas secondary tangentially exports (9), center baffle (13), upper end cover (12), lower end cover (6), sewage draining exit (7); A tangential entry of air (3) tangentially exports (9) with gas secondary and is welded on reverse heat exchanger (2) outermost layer, and flue (1) is placed in reverse heat exchanger (2) center, and heat conductive rod (11) is placed in the flue (4).
Reverse heat exchanger (2) adopts the spiral-plate heat exchanger processes, and flue (1) outside has groove, is embedded on the center baffle (13) of reverse heat exchanger (2), and seals with refractory cements.During use, at first open upper end cover (12), lower end cover (6), in flue (1), drop into straw solid fuel; Adopt lighter for ignition to light a fire from the below, use upper end cover (12), lower end cover (6) that flue (1) is sealed then, and simultaneously to a tangential entry of air (3) bubbling air, air enters in the flue (1) through reverse heat exchanger (2) passage to air secondary import (5), incomplete combustion takes place in biomass in flue (1), produce combustion gas, once tangentially export (10) from combustion gas and be expelled to reverse heat exchanger (2) passage, with another passage of reverse heat exchanger (2) in the air heat exchange after, tangentially export (9) from gas secondary and discharge, be delivered to the user.When not using stalk gasifier, open lower end cover (6), remove the gred, also can be when operation, the slagging-off while feeding in raw material.Sewage draining exit during operation (7) seals, and when out of service, opens sewage draining exit (7), removes water of condensation or other dirts in the reverse heat exchanger.
Compare with other stalk gasifiers, fuel gases calorific value height, tar content that the utility model possesses from preheating, self-heat conserving, certainly cooling, energy consumption is low, conversion ratio is high, produce are low, can be used for the various crop straws for producing combustion gas of corn, wheat etc., be suitable for rural households and use.
Claims (3)
1. a stalk high-temperature gasification stove mainly comprises flue (1), reverse heat exchanger (2), a tangential entry of air (3), air secondary import (5), fire grate (8), combustion gas is tangentially outlet (10) once, heat conductive rod (11), gas secondary tangentially exports (9), center baffle (13), upper end cover (12), lower end cover (6), sewage draining exit (7); A tangential entry of air (3) tangentially exports (9) with gas secondary and is welded on reverse heat exchanger (2) outermost layer, and flue (1) is placed in reverse heat exchanger (2) center, and heat conductive rod (11) is placed in the flue (4); It is characterized in that: flue (1) is outside equipped with reverse heat exchanger (2), is provided with heat conductive rod (11) in the flue.
2. a kind of stalk high-temperature gasification stove as claimed in claim 1 is characterised in that flue (1) all has the convergent mouth in two ends up and down.
3. a kind of stalk high-temperature gasification stove as claimed in claim 1 is characterised in that flue (1) outside has groove, is embedded on the center baffle (13) of reverse heat exchanger (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920172070XU CN201525826U (en) | 2009-05-14 | 2009-05-14 | High-temperature straw gasification furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920172070XU CN201525826U (en) | 2009-05-14 | 2009-05-14 | High-temperature straw gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201525826U true CN201525826U (en) | 2010-07-14 |
Family
ID=42517119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920172070XU Expired - Lifetime CN201525826U (en) | 2009-05-14 | 2009-05-14 | High-temperature straw gasification furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201525826U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555419B (en) * | 2009-05-14 | 2012-08-22 | 安徽喜阳阳新能源科技有限公司 | High-temperature gasification device for biomass |
| CN102777890A (en) * | 2012-08-16 | 2012-11-14 | 合肥工业大学 | Biomass fuel boiler |
| CN106439834A (en) * | 2016-11-29 | 2017-02-22 | 湖南省环境保护科学研究院 | Garbage disposal device capable of utilizing self-circulation pyrolysis gas for preheating air |
| CN113929098A (en) * | 2021-10-05 | 2022-01-14 | 上海柯来浦能源科技有限公司 | Heat-storage-combustion molten pool heating production device and calcium carbide, coal gas and lime co-production device |
-
2009
- 2009-05-14 CN CN200920172070XU patent/CN201525826U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101555419B (en) * | 2009-05-14 | 2012-08-22 | 安徽喜阳阳新能源科技有限公司 | High-temperature gasification device for biomass |
| CN102777890A (en) * | 2012-08-16 | 2012-11-14 | 合肥工业大学 | Biomass fuel boiler |
| CN102777890B (en) * | 2012-08-16 | 2014-06-25 | 合肥工业大学 | Biomass fuel boiler |
| CN106439834A (en) * | 2016-11-29 | 2017-02-22 | 湖南省环境保护科学研究院 | Garbage disposal device capable of utilizing self-circulation pyrolysis gas for preheating air |
| CN106439834B (en) * | 2016-11-29 | 2019-05-17 | 湖南省环境保护科学研究院 | A kind of refuse treatment plant that air is preheated using self-loopa pyrolysis gas |
| CN113929098A (en) * | 2021-10-05 | 2022-01-14 | 上海柯来浦能源科技有限公司 | Heat-storage-combustion molten pool heating production device and calcium carbide, coal gas and lime co-production device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100714 Effective date of abandoning: 20090514 |