CN102418995B - Multifunctional biomass reverse burning-type hot water boiler - Google Patents
Multifunctional biomass reverse burning-type hot water boiler Download PDFInfo
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- CN102418995B CN102418995B CN201110420432.4A CN201110420432A CN102418995B CN 102418995 B CN102418995 B CN 102418995B CN 201110420432 A CN201110420432 A CN 201110420432A CN 102418995 B CN102418995 B CN 102418995B
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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
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Abstract
Multifunctional biomass reverse burning-type hot water boiler, comprise reverse burning-type hot water boiler and retaining surge tank, heat-exchanging chamber sidewall between feed bin and reverse burning-type hot water boiler inwall is provided with water inlet and delivery port, delivery port is connected with retaining surge tank circulating water intake by tubing pump, and retaining surge tank circulating water outlet is connected with heat-exchanging chamber water inlet.Heat-exchanging chamber top is provided with air-flow buffer room, inlet channel is provided with between bottom and combustion chamber, air inlet on reverse burning-type hot water boiler wall is communicated with inlet channel, carbon outleting port is communicated with pyrolysis chamber, in heat-exchanging chamber, heat-exchange tube one end is communicated with air-flow buffer room, the other end and combustion chamber, top, air-flow buffer room is provided with chimney.Can be used as water heater to be used alone or to use with the corollary equipment of living beings waste resource utilization system and heating system, agricultural wastes are converted into biological flue gas, hot water is used for villager's cooking, bathing, heating; Biological powdered carbon, biological tar, for composting, desinsection (bacterium) agent and feed addictive.
Description
Technical field
The present invention relates to a kind of combustion furnace, specifically a kind of living beings based on agricultural crop straw Multifunctional biomass reverse burning-type hot water boiler that is fuel.
Background technology
China is a large agricultural country, creates the biomass resource such as a large amount of agricultural crop straws, chaff slag in agricultural production and processing of farm products.Traditional Land use systems is mainly used as home energy source, feed, fertilizer, the raw material of industry and construction material.Along with the fast development of agricultural technology modernization and agricultural economy, life in the countryside level significantly improves and the sudden change of the mode of production of living, rural households select the ratio of commercial energy improving constantly, the quantity that agricultural crop straw is used as the energy constantly declined, commercial energy (as coal, liquefied gas etc.) has become main cooking energy.Cultivation institute is in order to biomass straw, and weeds feed is substituted by commercial feed, and the biomass organic fertilizer needed for agricultural production is substituted by inorganic fertilizer, and life of farmers and agricultural production stalk used sharply decline.Meanwhile, agricultural crop straw output with crops, particularly cereal crops output increase and increase rapidly.Drug on the market causes that stalk is abandoned in field, house courtyard for agricultural crop straw, even directly burned in field.Abandon and can affect environment and initiation fire at the stalk in house courtyard and field, cause pollution of waterhead.Crop straw burning can contaminated air in the open, harm people ' s health, especially on airport, near Highway burning can affect traffic safety, causes aircraft ground, car tracing cauda collision, shade tree such as to be burnt at the adverse consequences.At present, although various places government has all put into effect the regulation of forbidding Open Burning Crop Residue, open incineration agricultural crop straw has still remained incessant after repeated prohibition, and environment causes severe contamination, causes tremendous economic to lose to society.
While the biomass resources such as stalk are wasted; the current main fossil energies such as the combustion gas used in China's industrial and agricultural production, fuel oil, heat energy, coal, oil are reducing day by day; famine; energy crisis has become the bottleneck problem of social development, is problem in the urgent need to address at present.
China has a large population and a few land, particularly agricultural arable land close to red line.Because a large amount of agricultural chemicals, inorganic fertilizer are by Long-Time Service in agricultural production, to reach prevention and elimination of disease and pests, to improve the object of grain yield.Due to the Long-Time Service of agricultural chemicals, inorganic fertilizer, utilization rate is low, causes remaining in soil and crops.Soil, water source, grain, veterinary antibiotics is caused to pollute.Residues of pesticides in grain, veterinary antibiotics have jeopardized health of human body safety, affect the raising of life in the countryside level and quality.
Along with the fast development of society, people more and more add attention for energy-saving and emission-reduction and ecological environmental protection, constantly seek to use the new energy, control atmosphere pollution, energy-saving and emission-reduction, reduce greenhouse effects.The technology being comprehensively converted into available resources with living beings waste resources such as agricultural crop straw, ight soil, chaff slags has caused showing great attention to of department at different levels of government.
Summary of the invention
Technical problem to be solved by this invention is, for solving the problem and disadvantage, the function of multiple simple function biomass conversion equipment is integrated in one, produce a kind of Multifunctional biomass reverse burning-type hot water boiler, adopt the transformation technologies such as trans burning, pyrolytic gasification, pyrolysis charring, under excess oxygen, by burning, living beings waste resource is changed into hot water.Under oxygen debt condition, by charcoal gasification and pyrolysis or gasification and pyrolysis, support the use with miscellaneous equipment, living beings waste resource is changed into hot water, the resource such as biological fuel gas, biological tar, biological acetic acid or biological fuel gas, biological powdered carbon, biological tar, biological acetic acid and hot water, and realize automatic feeding.
The present invention for solving the problems of the technologies described above adopted technical scheme is: found a kind of Multifunctional biomass reverse burning-type hot water boiler, comprise reverse burning-type hot water boiler and retaining surge tank, a vertical feed bin is provided with in reverse burning-type hot water boiler, the top of feed bin is provided with feed bin lid, the bottom of feed bin is pyrolysis chamber, fire grate is provided with between combustion chamber bottom pyrolysis chamber and reverse burning-type hot water boiler, heat-exchanging chamber is provided with between feed bin and the inwall of reverse burning-type hot water boiler, heat-exchanging chamber sidewall is respectively equipped with water inlet and delivery port, delivery port is connected by the circulating water intake of tubing pump with retaining surge tank, the circulating water outlet of retaining surge tank is connected with heat-exchanging chamber water inlet, retaining surge tank is also provided with the heat supply mouth of a river.Heat-exchanging chamber top is provided with air-flow buffer room, inlet channel is provided with between the bottom of heat-exchanging chamber and combustion chamber, the locular wall of pyrolysis chamber is distributed with the pore be communicated with inlet channel, reverse burning-type hot water boiler wall between heat-exchanging chamber and combustion chamber is provided with air inlet and carbon outleting port, air inlet is communicated with inlet channel, carbon outleting port is communicated with pyrolysis chamber by conduit, heat-exchange tube is provided with in heat-exchanging chamber, one end of heat-exchange tube is communicated with air-flow buffer room, the other end is through inlet channel and combustion chamber, and the top of air-flow buffer room is provided with chimney.
Described water inlet is arranged on the lower sidewall of heat-exchanging chamber, and delivery port is arranged on the side wall upper part of heat-exchanging chamber.
Described air inlet is provided with three, 90 °, three air inlet intervals or be evenly distributed on around reverse burning-type hot water boiler.
Described reverse burning-type hot water boiler bottom is provided with the ash hole with combustion chamber.
Described retaining surge tank is provided with temperature indicator and water level controller, and the pipeline be connected with reverse burning-type hot water boiler arranges tubing pump.
Described reverse burning-type hot water boiler, retaining surge tank and connecting pipe are provided with heat-insulation layer.
The Multifunctional biomass reverse burning-type hot water boiler newly founded is that biomass castoff (is comprised various agricultural crop straw sawmilling, firewood, weeds, pine needle leaf, ight soil, edible fungi residues etc.) adopt trans burning, pyrolytic gasification, the conversion of pyrolysis charring form, burning or the cracking of charcoal heat of gasification under oxygen enrichment or oxygen debt condition, change into hot water or biological fuel gas, biological tar, biological acetic acid and hot water or biological fuel gas, biological powdered carbon, biological tar, biological acetic acid and hot water, for solving the problem, improve the ecological environment, change life of farmers quality.
The invention has the beneficial effects as follows: multifunctional biomass converting apparatus can be used as the corollary equipment that living beings waste resource pyrolytic gasification or RESEARCH OF PYROCARBON gasification comprehensive utilize system, utilize multifunctional biomass converting apparatus, agricultural wastes are converted into biological fuel gas, biological powdered carbon, biological tar, biological acetic acid and hot water.Biological fuel gas and hot water are used for resident's cooking, bathing; Biological powdered carbon, biological acetic acid are for bio-organic fertilizer processed, biology feed additive, Biocidal (bacterium) agent; Biological tar is for Biocidal processed (bacterium) agent or biogas (bavin) oil.For urban residents' life and production.Solve the pollution problem that causes of ight soil of crop straw burning, chemical fertilizer Long-Time Service, intensive culture, improve agroecological environment; Solving urban residents lives with changing lifestyles; Reduce agricultural production fertilizer application amount improvement soil texture, improve quality of agricultural product.Multifunctional biomass converting apparatus in combustion fuel reduces formation hole gradually, and the fuel in feed bin moves down under self gravitation effect, automatically fills up hole, implements automatic feeding and reduces labour intensity.Multifunctional biomass converting apparatus can be used as trans burning water heater, gasification of biomass water heater or charcoal gasified hot-water stove, and the gasification or the charcoal gasification that realize living beings transform, and are user's supplying hot water, are convenient to apply.Structure is simple, multiple functional, equipment maintenance cost and low cost of manufacture, thus significantly can reduce operating cost, increase economic efficiency, in the practicality used and cost benefit, meet needed for the current structure of agricultural production and rural economic development, quite there is industry development and application value.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is reverse burning-type hot water boiler internal structure schematic diagram.
Fig. 3 is the position relationship schematic diagram of feed bin and heat-exchanging chamber.
Mark in figure: 1, reverse burning-type hot water boiler, 2, feed bin, 201, feed bin lid, 202, pyrolysis chamber, 3, combustion chamber, 4, fire grate, 5, heat-exchanging chamber, 501, heat-exchange tube, 502, water inlet, 503, delivery port, 6, inlet channel, 601, air inlet, 7, carbon outleting port, 8, ash hole, 9, air-flow buffer room, 901, chimney, 10, retaining surge tank.
Detailed description of the invention
For further setting forth the technological means that the present invention takes for reaching predetermined object, below in conjunction with accompanying drawing and preferred embodiment, the technical scheme proposed according to the present invention is described in detail.
Multifunctional biomass reverse burning-type hot water boiler, comprises reverse burning-type hot water boiler 1 and retaining surge tank 10, and be provided with a feed bin 2 in reverse burning-type hot water boiler 1, feed bin 2 is vertically arranged, and the part of its underpart, as pyrolysis chamber 202, is distributed with pore around locular wall.The Hatch Opening place at feed bin 2 top is provided with feed bin lid 201.Bottom in reverse burning-type hot water boiler 1 is provided with combustion chamber 3, and the fire grate 4 by arranging between combustion chamber 3 and pyrolysis chamber 202 separates.Heat-exchanging chamber 5 is provided with between feed bin 2 and the inwall of reverse burning-type hot water boiler 1, heat-exchanging chamber 5 sidewall is respectively equipped with water inlet 502 and delivery port 503, delivery port 503 is connected by the circulating water intake of tubing pump with retaining surge tank 10, and the circulating water outlet of retaining surge tank 10 is connected with heat-exchanging chamber 5 water inlet 502; Retaining surge tank 10 is also provided with the heat supply mouth of a river.The top of heat-exchanging chamber 5 is provided with air-flow buffer room 9, is provided with inlet channel 6 between the bottom of heat-exchanging chamber 5 and combustion chamber 3, and the pore of pyrolysis chamber 202 locular wall distribution is communicated with inlet channel 6.Reverse burning-type hot water boiler 1 wall between heat-exchanging chamber 5 and combustion chamber 3 is provided with air inlet 601 and carbon outleting port 7, and air inlet 601 is communicated with inlet channel 6, and carbon outleting port 7 is communicated with pyrolysis chamber 202 by conduit.Heat-exchange tube 501 is provided with in heat-exchanging chamber 5, heat-exchange tube 501 is that snakelike setting or spirality are arranged in heat-exchanging chamber 5, one end of heat-exchange tube 501 is communicated with air-flow buffer room 9, and the other end is communicated with combustion chamber 3 through inlet channel 6, and the top of air-flow buffer room 9 is provided with chimney 501.
Described water inlet 502 is arranged on the bottom of heat-exchanging chamber 5 sidewall, delivery port 503 is arranged on the top of heat-exchanging chamber 5 sidewall, can remain in heat-exchanging chamber 5 and be full of heat exchange water, improve heat exchange efficiency, and prevent the outside and heat-exchanging chamber 5 interior contact air of heat-exchange tube 501 and be corroded.
Described air inlet 601 is provided with three, and 90 °, three air inlet 601 intervals to be distributed between the heat-exchanging chamber of reverse burning-type hot water boiler 1 and combustion chamber around.Three air inlets 601 also can be evenly distributed on reverse burning-type hot water boiler 1 around.
Described reverse burning-type hot water boiler 1 bottom is provided with the ash hole 8 be communicated with combustion chamber 3, clears up the ashes after burning by ash hole 8.
Described retaining surge tank is provided with temperature indicator and water level controller, and the pipeline be connected with reverse burning-type hot water boiler arranges tubing pump.
Described reverse burning-type hot water boiler, retaining surge tank and connecting pipe are provided with heat-insulation layer.
When Multifunctional biomass reverse burning-type hot water boiler uses as trans burning water heater, open feed bin lid 201, feed bin 2 is filled it up with biomass fuel (raw material), cover feed bin lid 201; Heat-exchanging chamber 5 topped up with water is given by water inlet 502; Close carbon outleting port 7 and ash hole 8; Light the fuel in pyrolysis chamber 202 from air inlet 601, enter from air inlet 601 under chimney 901 extracting containing oxygen air, make fuel combustion, pyrolysis by pyrolysis chamber 202 and combustion chamber 3, form high-temperature gas; High-temperature gas through heat-exchange tube 501, and implements heat exchange with the water in heat-exchanging chamber 5, and water temperature raises, high-temperature gas cooling; Gas is discharged by the chimney 901 of air-flow buffer room 9; The hot water that delivery port 503 flows out enters retaining surge tank 10, water temperature in retaining surge tank 10 is raised, can be used for user to use; Fuel fuel in pyrolysis, combustion process in pyrolysis chamber 202 and combustion chamber 3 reduces gradually and forms hole, and the fuel in feed bin 2 moves down under self gravitation effect, automatically fills up hole, implements automatic feeding.
When Multifunctional biomass reverse burning-type hot water boiler uses as biomass pyrogenation gasification water heater: by chimney 901 and the biomass gas purifying equipment connection of reverse burning-type hot water boiler; Open feed bin lid 201, feed bin 2 is filled it up with biomass fuel (raw material), then cover feed bin lid 201; Heat-exchanging chamber 5 topped up with water is given by water inlet 502; Close carbon outleting port 7 and ash hole 8; Put into pyrophoric fuel from air inlet 601 and light, under the Aerodynamic force action of biomass gas purifying equipment, entering pyrolysis chamber 202 and combustion chamber 3 pilot chamber fuel from air inlet 601 containing oxygen air; Then feed bin lid 201 is opened, close air inlet 601, enter from material outlet under the Aerodynamic force action of biomass gas purifying equipment containing oxygen air, pyrolysis chamber 202 and combustion chamber 3 is entered by feed bin 2, indoor section oxidized, release heat forms high temperature, and indoor remaining fuel at high operating temperatures, is carried out pyrolytic gasification reaction and formed high-temperature gas mixture body; High-temperature gas mixture body through heat-exchange tube 501, and implements heat exchange with the water in heat-exchanging chamber 5, and water temperature raises, high-temperature gas cooling; Mist enters biomass gas purifying equipment by the chimney 901 of air-flow buffer room 9 and obtains biological combustible gas, biological acetic acid and biological tar; Pyrolysis chamber 202 and combustion chamber 3 fuel fuel in pyrolysis, combustion process reduce gradually and form hole, and the fuel in feed bin 2 moves down under self gravitation effect, automatically fills up hole, implement automatic feeding.Hot water in heat-exchanging chamber 5, under tubing pump effect, enters retaining surge tank 10 from delivery port 503, and water temperature in retaining surge tank 10 is raised, and is user's supplying hot water; Biological fuel gas and hot water are used for resident's cooking, bathing; Biological acetic acid is for bio-organic fertilizer processed, biology feed additive, Biocidal (bacterium) agent; Biological tar, for Biocidal processed (bacterium) agent or biogas (bavin) oil, is lived for urban residents and produces.
When Multifunctional biomass reverse burning-type hot water boiler uses as technique for biomass pyrolysis carbon gas water heater: by chimney 901 and the biomass gas purifying equipment connection of reverse burning-type hot water boiler; Open feed bin lid 201, add biomass fuel (raw material) by 2/3 of feed bin 2; Heat-exchanging chamber 5 topped up with water is given by water inlet 502; Close air inlet 601, carbon outleting port 7 and ash hole 8; Start biomass gas purifying equipment, put into pyrophoric fuel from feed bin 2 upper port and light, under the Aerodynamic force action of biomass gas purifying equipment, enter feed bin 2, pyrolysis chamber 202 and combustion chamber 3 by feed bin 2 upper port containing oxygen air and to ignite upper strata fuel; After upper strata fuel is lighted completely, feed bin 2 upper port certain distance is dosed to rapidly from feed bin 2 upper port, under the Aerodynamic force action of biomass gas purifying equipment, the burning zone in feed bin 2 is entered from material outlet containing oxygen air, part of fuel is oxidized, release heat, formation high-temperature region, in feed bin 2, remaining fuel at high operating temperatures, carries out pyrolysis charring reaction and form high-temperature gas mixture body and high-temperature biological charcoal; High-temperature gas mixture body through heat-exchange tube 501, and implements heat exchange with the water in heat-exchanging chamber 5, and water temperature raises, high-temperature gas cooling; Mist enters biomass gas purifying equipment by the chimney 901 of air-flow buffer room 9 and obtains biological flue gas, biological acetic acid and biological tar; Charcoal is discharged from carbon outleting port.Hot water in heat-exchanging chamber 5, under tubing pump effect, enters retaining surge tank 10 from delivery port 503, and water temperature in retaining surge tank 10 is raised, and is user's supplying hot water; Biological fuel gas and hot water are used for resident's cooking, bathing; Biological powdered carbon, biological acetic acid are for bio-organic fertilizer processed, biology feed additive, Biocidal (bacterium) agent; Biological tar is for Biocidal processed (bacterium) agent or biogas (bavin) oil.For urban residents' life and production.
The above is optimum embodiment of the present invention, but technical scheme of the present invention is not limited to the particular form that above-described embodiment describes, any equivalent transformation to the technology of the present invention feature, within the scope all belonging to technical solution of the present invention.
Claims (6)
1. multifunctional biomass transforms reverse burning-type hot water boiler, it is characterized in that: comprise reverse burning-type hot water boiler (1) and retaining surge tank (10), a vertical feed bin (2) is provided with in reverse burning-type hot water boiler (1), the top of feed bin (2) is provided with feed bin lid (201), the bottom of feed bin (2) is pyrolysis chamber (202), be provided with reverse burning-type hot water boiler between the combustion chamber (3) of pyrolysis chamber (202) and reverse burning-type hot water boiler (1) bottom and comb (4), the heat-exchanging chamber (5) around feed bin is provided with between feed bin (2) and the inwall of reverse burning-type hot water boiler (1), heat-exchanging chamber (5) sidewall is respectively equipped with water inlet (502) and delivery port (503), delivery port (503) is connected by the circulating water intake of tubing pump with retaining surge tank (10), the circulating water outlet of retaining surge tank (10) is connected with heat-exchanging chamber (5) water inlet (502), retaining surge tank (10) is also provided with the heat supply mouth of a river, heat-exchanging chamber (5) top is provided with air-flow buffer room (9), inlet channel (6) is provided with between the bottom of heat-exchanging chamber (5) and combustion chamber (3), pyrolysis chamber (202) locular wall is around distributed with the pore be communicated with inlet channel (6), reverse burning-type hot water boiler (1) wall between heat-exchanging chamber (5) and combustion chamber (3) is provided with air inlet (601) and carbon outleting port (7), air inlet (601) is communicated with inlet channel (6), carbon outleting port (7) is communicated with pyrolysis chamber (202) by conduit, heat-exchange tube (501) is provided with in heat-exchanging chamber (5), one end of all heat-exchange tubes (501) is all communicated with air-flow buffer room (9), the other end is all communicated with combustion chamber (3) through inlet channel (6), the top of air-flow buffer room (9) is provided with the chimney (901) for connecting biomass gas purifying equipment, air inlet ventilation is opened when closing feed bin lid, or the ventilation of feed bin lid is opened when air inlet is closed.
2. multifunctional biomass as claimed in claim 1 transforms reverse burning-type hot water boiler, it is characterized in that: described water inlet (502) is arranged on the lower sidewall of heat-exchanging chamber (5), and delivery port (503) is arranged on the side wall upper part of heat-exchanging chamber (5).
3. multifunctional biomass as claimed in claim 1 transforms reverse burning-type hot water boiler, it is characterized in that: described air inlet (601) is provided with three, 90 °, three air inlet (601) intervals or be evenly distributed on reverse burning-type hot water boiler (1) around.
4. multifunctional biomass as claimed in claim 1 transforms reverse burning-type hot water boiler, it is characterized in that: described reverse burning-type hot water boiler (1) bottom is provided with the ash hole (8) be communicated with combustion chamber (3).
5. multifunctional biomass as claimed in claim 1 transforms reverse burning-type hot water boiler, it is characterized in that: described retaining surge tank (10) is provided with temperature indicator and water level controller, the pipeline be connected is arranged tubing pump (11) with reverse burning-type hot water boiler (1).
6. multifunctional biomass as claimed in claim 1 transforms reverse burning-type hot water boiler, it is characterized in that: described reverse burning-type hot water boiler (1), retaining surge tank (10) and connecting pipe are provided with heat-insulation layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110420432.4A CN102418995B (en) | 2011-12-15 | 2011-12-15 | Multifunctional biomass reverse burning-type hot water boiler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110420432.4A CN102418995B (en) | 2011-12-15 | 2011-12-15 | Multifunctional biomass reverse burning-type hot water boiler |
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| CN102418995A CN102418995A (en) | 2012-04-18 |
| CN102418995B true CN102418995B (en) | 2016-02-17 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102649655B (en) * | 2012-04-27 | 2015-04-01 | 中国科学院上海高等研究院 | Carbon-based compound fertilizer containing probiotic organisms and preparation method of carbon-based compound fertilizer |
| CN104913507B (en) * | 2014-03-14 | 2018-06-19 | 佛山市顺德区旭政实业有限公司 | A kind of intelligence control system of biological particles water heater for heating |
| CN115181591A (en) * | 2022-07-05 | 2022-10-14 | 吉林大学 | Biomass gasification furnace and surrounding type methane tank comprehensive gas reaction furnace |
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|---|---|---|---|---|
| EP1298395A2 (en) * | 2001-09-28 | 2003-04-02 | Daikin Industries, Ltd. | Heat pump type hot water supply system |
| CN2869677Y (en) * | 2005-12-30 | 2007-02-14 | 贾树峰 | Coal gasifying strongy-burning back-burning automatic water-heating boiler |
| CN201569142U (en) * | 2009-11-26 | 2010-09-01 | 许飞 | Biological counter heating gasification boiler |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100796236B1 (en) * | 2006-07-15 | 2008-01-21 | 박상현 | Waste Water Heat Recycle System |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1298395A2 (en) * | 2001-09-28 | 2003-04-02 | Daikin Industries, Ltd. | Heat pump type hot water supply system |
| CN2869677Y (en) * | 2005-12-30 | 2007-02-14 | 贾树峰 | Coal gasifying strongy-burning back-burning automatic water-heating boiler |
| CN201569142U (en) * | 2009-11-26 | 2010-09-01 | 许飞 | Biological counter heating gasification boiler |
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Granted publication date: 20160217 Termination date: 20161215 |