CN112709982B - High efficiency and energy saving gasification combustion hot air furnace - Google Patents
High efficiency and energy saving gasification combustion hot air furnace Download PDFInfo
- Publication number
- CN112709982B CN112709982B CN202110133687.6A CN202110133687A CN112709982B CN 112709982 B CN112709982 B CN 112709982B CN 202110133687 A CN202110133687 A CN 202110133687A CN 112709982 B CN112709982 B CN 112709982B
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- heat exchange
- chamber
- air
- combustion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 145
- 238000002309 gasification Methods 0.000 title claims abstract description 50
- 239000000779 smoke Substances 0.000 claims abstract description 28
- 239000000446 fuel Substances 0.000 claims abstract description 18
- 238000010009 beating Methods 0.000 claims description 17
- 239000001301 oxygen Substances 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 210000000078 claw Anatomy 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
- F23B90/00—Combustion methods not related to a particular type of apparatus
- F23B90/04—Combustion methods not related to a particular type of apparatus including secondary combustion
- F23B90/06—Combustion methods not related to a particular type of apparatus including secondary combustion the primary combustion being a gasification or pyrolysis in a reductive atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/06—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators
- F24H3/08—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes
- F24H3/088—Air heaters with forced circulation the air being kept separate from the heating medium, e.g. using forced circulation of air over radiators by tubes using solid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
The invention discloses a high-efficiency energy-saving gasification combustion hot blast stove which comprises a combustion part and a heat exchange part, wherein the combustion part comprises a main combustion chamber, a plurality of gasification combustion chambers are annularly arranged around the main combustion chamber, an overfire pipe communicated with the main combustion chamber is arranged at the middle lower part of each gasification combustion chamber, combustion hot air cavities are arranged around the main combustion chamber, the gasification combustion chamber and the overfire pipe, the heat exchange part comprises a heat exchange combustion chamber positioned at the upper part of the main combustion chamber, three layers of barrel sleeves are sequentially arranged at the periphery of the heat exchange combustion chamber from inside to outside to form two layers of annular heat exchange air cavities and one layer of annular smoke cavity, a second air inlet is arranged at the lower part of the outer layer of heat exchange air cavity, a second air outlet is arranged at the lower part of the inner layer of heat exchange air cavity, and a smoke outlet is arranged at the lower part of the smoke cavity. The device has the characteristics of reasonable structure, convenient use, full combustion, high heat exchange efficiency, small smoke emission pollution and suitability for various fuels.
Description
Technical Field
The invention belongs to the technical field of hot blast stoves, and particularly relates to a high-efficiency energy-saving gasification combustion hot blast stove.
Background
The hot blast stove has wide application in the production and life of people, the working mode is the heat released by fuel combustion, and the air is heated by high-temperature flue gas, so that the temperature of the air reaches the use standard, and the hot blast stove is used in the fields of life heating, industrial production, heat curing, grain drying and the like. The type of the hot blast stove is mainly divided into an internal combustion type, an external combustion type and a top combustion type, the whole structure of the hot blast stove can be divided into two parts, one part is a combustion part and is a fuel combustion heat generating part, the other part is a heat exchange part, and the other part is a structural device for carrying out heat exchange between heat carried by high-temperature gas generated by a combustion chamber and external fresh air, wherein the external fresh air with lower temperature is heated to form hot air after heat exchange is carried out between the external fresh air and high-temperature flue gas generated by the combustion chamber in a heat exchanger.
At present, the hot blast stove is mainly provided with two problems, namely, a combustion part is that coal or biomass fuel is directly combusted in a combustion chamber, smoke and fire are generated and enter a heat exchanger, the fuel cannot be fully combusted, the heat value of the fuel cannot be fully utilized, the smoke emission pollution is serious, and on the other hand, the heat exchange area of a heat exchange part is small, the heat exchange efficiency is low, the temperature of smoke discharged from a flue is high, and the heat cannot be fully absorbed and utilized.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the high-efficiency energy-saving gasification combustion hot blast stove which has the characteristics of reasonable structure, convenient use, full combustion, high heat exchange efficiency, small smoke emission pollution and suitability for various fuels.
The invention has the technical scheme that the high-efficiency energy-saving gasification combustion hot blast stove comprises a combustion part and a heat exchange part, and is characterized in that the combustion part comprises a stove shell formed by a stove table top and a stove cylinder wall, a main combustion chamber with the upper end higher than the stove table top is arranged in the middle of the stove shell, a plurality of gasification combustion chambers are annularly arranged around the main combustion chamber in the stove shell, an over fire pipe communicated with the main combustion chamber is arranged at the middle lower part of each gasification combustion chamber, an outer sleeve layer is arranged around the main combustion chamber, the gasification combustion chamber and the over fire pipe, a combustion hot air cavity communicated with each other is formed between the outer sleeve layer and the main combustion chamber, the gasification combustion chamber and the outer wall of the over fire pipe, an annular air supply channel is arranged on the stove cylinder wall, a first air inlet is arranged at the corresponding position of each gasification combustion chamber, a first air outlet communicated with the combustion hot air cavity is arranged at the outer side of the air supply channel, a heat exchange part comprises a combustion chamber positioned at the upper part of the main combustion chamber, an outer sleeve layer is sequentially arranged between the outer sleeve of the heat exchange chamber and the outer sleeve layer, a second sleeve is arranged between the outer sleeve part and the outer sleeve part of the inner sleeve is arranged, a third sleeve part is arranged between the outer sleeve part is communicated with the inner sleeve part, a second sleeve part is arranged between the inner sleeve part is communicated with the outer sleeve part, and the inner sleeve part is arranged between the inner sleeve part is communicated with the inner sleeve part.
Further, the bottom of the main combustion chamber is provided with one or more oxygen supply and distribution pipes communicated with the outside of the furnace shell. The further scheme has the advantages that the oxygen supply of the main combustion chamber can be increased, the oxygen supply is sufficient, the fuel is combusted more fully, the heat efficiency is improved, and the smoke emission pollution is reduced.
Further, the bottom of the main combustion chamber is provided with an ash discharge port, the ash discharge port is provided with a flap type furnace bottom, and the flap type furnace bottom is provided with an operating rod extending out of the furnace shell. The further scheme has the beneficial effects that the oxygen supply of the main combustion chamber can be regulated, and the ash is conveniently discharged.
Further, a grate is arranged at the lower part of the gasification combustion chamber, an ash beating device is arranged below the grate, the ash beating device comprises an ash beating rotating shaft extending to the outside of the furnace shell, and a plurality of ash beating claws corresponding to ash leakage strip holes of the grate are connected to the ash beating rotating shaft. The further scheme has the advantages of conveniently removing slag and furnace ash stored on the grate, improving the ventilation of the grate and being beneficial to gasification combustion of fuel in the gasification combustion chamber.
Further, an air deflector is arranged on the outer wall of the gasification combustion chamber. The heat exchange device has the beneficial effects that the flow is guided to the air flow direction, so that the air flow is uniformly distributed in the combustion hot air cavity, and the heat exchange effect is improved.
Further, heat exchange fins are arranged on the outer sides of the heat exchange combustion chamber, the first barrel sleeve and the second barrel sleeve. The heat exchange device has the beneficial effects that the heat exchange area is increased, and the heat exchange effect is improved.
Further, a heightened fuel bin and a fuel bin cover are arranged at the upper part of each gasification combustion chamber. The beneficial effect of adopting this further scheme is, can once add more fuel, it is more convenient to use.
Further, the first air inlet and the second air inlet are connected with a blower through a three-way air pipe, and the smoke outlet is communicated with a draught fan.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention consists of a combustion part and a heat exchange part, which are two relatively independent parts, and are processed, manufactured and transported in aspects.
(2) The combustion part of the invention comprises a main combustion chamber and a plurality of gasification combustion chambers which are annularly arranged around the main combustion chamber, the fuel can be biomass fuel or coal, the fuel can be fully combusted in a gasification combustion mode, the temperature of combustion tail gas is low, the heat efficiency is high, the smoke emission pollution is small, the smoke emission environment-friendly requirement is met, and the invention can also start different numbers of gasification combustion chambers according to the heating requirement, and has high heating power and strong adaptability.
(3) The heat exchange part comprises a heat exchange combustion chamber positioned at the upper part of the main combustion chamber, wherein the periphery of the heat exchange combustion chamber is sequentially provided with a first barrel sleeve, a second barrel sleeve and a third barrel sleeve from inside to outside, the whole structure is compact and reasonable, the processing and the manufacturing are easy, the flow of a smoke cavity and a heat exchange air cavity are long, the heat exchange area is large, and the heat exchange efficiency is high.
(4) The combustion hot air cavity and the heat exchange air cavity are reasonable in design, and the air flow is balanced and stable, free of jet flow, free of turbulence, free of vibration and free of noise.
Drawings
FIG. 1 is a schematic diagram of a three-dimensional structure of a high-efficiency energy-saving gasification combustion hot blast stove of the invention;
FIG. 2 is a schematic perspective view of the combustion section of the present invention from the top side;
FIG. 3 is a schematic perspective view of the combustion section of the present invention from the underside;
FIG. 4 is a schematic side view of the combustion section of the present invention;
FIG. 5 is a cross-sectional view of AA of FIG. 4;
FIG. 6 is a schematic view in partial cutaway of a combustion section of the present invention;
FIG. 7 is a schematic perspective view of a gasification combustion chamber according to the present invention;
FIG. 8 is a schematic side view of a heat exchange portion of the present invention;
FIG. 9 is a cross-sectional view of BB of FIG. 8;
fig. 10 is a schematic sectional view of a heat exchanging part of the present invention.
In the figure, the furnace comprises a 1-furnace table top, a 2-furnace cylinder wall, a 3-main combustion chamber, a 4-gasification combustion chamber, a 5-fire passing pipe, a 6-outer sleeve layer, a 7-combustion hot air cavity, an 8-annular air supply channel, a 9-air supply pipe, a 10-first air inlet, a 11-first air outlet, a 12-heat exchange combustion chamber, a 13-first cylinder sleeve, a 14-second cylinder sleeve, a 15-third cylinder sleeve, a 16-inner heat exchange hot air cavity, a 17-outer heat exchange air cavity, a 18-smoke cavity, a 19-smoke passing pipe, a 20-air passing pipe, a 21-second air inlet, a 22-second air outlet, a 23-smoke outlet, a 24-oxygen supply distributing pipe, a 25-ash discharge port, a 26-flap furnace bottom, a 27-operating rod, a 28-furnace grate, a 29-ash beating rotating shaft, a 30-ash beating claw, a 31-air deflector, 32-heat exchange fins, a 33-combustion bin, a 34-combustion bin cover, a 35-blower and 36-draught fan.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 10, a high efficiency energy saving gasification combustion hot blast stove comprises a combustion part and a heat exchanging part; the combustion part comprises a furnace shell formed by a furnace table top 1 and a furnace cylinder wall 2, a main combustion chamber 3 with the upper end higher than the furnace table top is arranged in the middle of the furnace shell, six gasification combustion chambers 4 are annularly arranged around the main combustion chamber 3 in the furnace shell, an overfire pipe 5 communicated with the main combustion chamber 3 is arranged at the middle lower part of each gasification combustion chamber 4, an outer sleeve 6 is arranged around the main combustion chamber 3, the gasification combustion chamber 4 and the overfire pipe 5, a combustion hot air cavity 7 communicated with each other is formed between the outer sleeve 6 and the main combustion chamber 3, the gasification combustion chamber 4 and the outer wall of the overfire pipe 5, an annular air supply channel 8 is arranged outside the furnace cylinder wall 2, an air supply pipe 9 communicated with the air supply channel 8 and the combustion hot air cavity 7 is arranged at the corresponding position of each gasification combustion chamber 4, a first air inlet 10 is arranged at the outer side of the air supply channel 8, and a first air outlet 11 communicated with the combustion hot air cavity 7 is arranged at the upper part of the main combustion chamber 3; the heat exchange part comprises a heat exchange combustion chamber 12 positioned at the upper part of the main combustion chamber 3, a first barrel cover 13, a second barrel cover 14 and a third barrel cover 15 are sequentially arranged at the periphery of the heat exchange combustion chamber 12 from inside to outside, an annular inner heat exchange air cavity 16 is formed between the heat exchange combustion chamber 12 and the first barrel cover 13, an annular outer heat exchange air cavity 17 is formed between the second barrel cover 14 and the third barrel cover 15, an annular smoke cavity 18 is formed between the first barrel cover 13 and the second barrel cover 14, four smoke passing pipes 19 communicated with the smoke cavity 18 are arranged at the upper part of the heat exchange combustion chamber 12, one air passing pipe 20 communicated with the outer heat exchange air cavity 17 is arranged at the upper part of the inner heat exchange air cavity 16, a second air inlet 21 is arranged at the lower part of the outer heat exchange air cavity 17, the lower part of the inner layer heat exchange air cavity 16 is provided with a second air outlet 22, and the lower part of the smoke cavity 18 is provided with a smoke outlet 23. Three oxygen supply and distribution pipes 24 communicated to the outside of the furnace shell are arranged at the bottom of the main combustion chamber 3. The bottom of the main combustion chamber 3 is provided with an ash discharge port 25, the ash discharge port 25 is provided with a flap type furnace bottom 26, and the flap type furnace bottom 26 is provided with an operating rod 27 extending to the outside of the furnace shell. The lower part of the gasification combustion chamber 4 is provided with a grate 28, an ash beating device is arranged below the grate 28, the ash beating device comprises an ash beating rotary shaft 29 extending to the outside of the furnace shell, and a plurality of ash beating claws 30 corresponding to ash leakage bar holes of the grate 28 are connected to the ash beating rotary shaft 28. An air deflector 31 is provided on the outer wall of the gasification combustion chamber 4. Heat exchanging fins 32 are provided on the outer sides of the heat exchanging combustion chamber 12, the first barrel cover 13 and the second barrel cover 14. A raised fuel silo 33 and a silo cover 34 are provided at the upper part of each gasification combustion chamber 4. The first air inlet 10 and the second air inlet 21 are connected with a blower 25 through a three-way air pipe, and the smoke outlet 23 is communicated with a draught fan 36.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110133687.6A CN112709982B (en) | 2021-02-01 | 2021-02-01 | High efficiency and energy saving gasification combustion hot air furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110133687.6A CN112709982B (en) | 2021-02-01 | 2021-02-01 | High efficiency and energy saving gasification combustion hot air furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112709982A CN112709982A (en) | 2021-04-27 |
| CN112709982B true CN112709982B (en) | 2025-03-14 |
Family
ID=75549877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110133687.6A Active CN112709982B (en) | 2021-02-01 | 2021-02-01 | High efficiency and energy saving gasification combustion hot air furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112709982B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202002152U (en) * | 2011-03-18 | 2011-10-05 | 桑学礼 | Automatic temperature adjustment hotblast stove for cooking and warming |
| CN106196592A (en) * | 2016-05-18 | 2016-12-07 | 横县华能生物质燃料有限公司 | A biomass hot stove system |
| CN207702434U (en) * | 2017-12-27 | 2018-08-07 | 天津市必拓制钢有限公司 | A kind of more furnace core pneumatic type boilers |
| CN215294890U (en) * | 2021-02-01 | 2021-12-24 | 赤峰红山圣火生物质能科技开发有限公司 | High-efficiency and energy-saving gasification combustion hot blast stove |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100987496B1 (en) * | 2008-09-19 | 2010-10-12 | 주식회사 커라텍 | Electric solid fuel boiler |
| CN103629813B (en) * | 2013-12-13 | 2016-08-17 | 新乐非凡供暖设备有限公司 | A kind of coal-fired hot-blast stove |
| CN108518863B (en) * | 2018-04-09 | 2023-11-28 | 杨庆询 | Energy-saving safe and efficient hot blast stove |
| CN119222786A (en) * | 2020-07-24 | 2024-12-31 | 四川智献新能源科技有限公司 | A spiral plate type internal combustion high-efficiency hot air stove and use method |
-
2021
- 2021-02-01 CN CN202110133687.6A patent/CN112709982B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202002152U (en) * | 2011-03-18 | 2011-10-05 | 桑学礼 | Automatic temperature adjustment hotblast stove for cooking and warming |
| CN106196592A (en) * | 2016-05-18 | 2016-12-07 | 横县华能生物质燃料有限公司 | A biomass hot stove system |
| CN207702434U (en) * | 2017-12-27 | 2018-08-07 | 天津市必拓制钢有限公司 | A kind of more furnace core pneumatic type boilers |
| CN215294890U (en) * | 2021-02-01 | 2021-12-24 | 赤峰红山圣火生物质能科技开发有限公司 | High-efficiency and energy-saving gasification combustion hot blast stove |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112709982A (en) | 2021-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201630195U (en) | Energy-saving and high-efficiency grain dryer | |
| CN206593087U (en) | A kind of chamber structure of biomass boiler | |
| CN215294890U (en) | High-efficiency and energy-saving gasification combustion hot blast stove | |
| CN112709982B (en) | High efficiency and energy saving gasification combustion hot air furnace | |
| CN107062599A (en) | A kind of environmentally friendly hot-blast stove with regeneration fuel oil and biomass fuel | |
| CN203024409U (en) | Environment-friendly conduction oil circulating heater | |
| CN201237353Y (en) | Heating stove for shed | |
| CN202166047U (en) | Energy-saving and environment-friendly biomass heating furnace | |
| CN111237746B (en) | A biomass circulating fluidized bed boiler | |
| CN211146891U (en) | Adjustable hot-blast stove | |
| CN206593088U (en) | Biomass boiler chamber structure | |
| CN208205406U (en) | A kind of burning energy-saving boiler | |
| CN201322521Y (en) | Grain Dryer Equipment | |
| CN207763252U (en) | fuel gas hot-blast stove | |
| CN113418297A (en) | Reverse burning hot blast stove | |
| CN206504470U (en) | One kind burning hot-blast stove | |
| CN2467962Y (en) | Environment protection energy-saving coal combustion hot-air stove | |
| CN218178909U (en) | An integrated regenerative incinerator with gas inlet and outlet switching | |
| CN218269271U (en) | Air duct structure of a particle heater | |
| CN112146269A (en) | Environmental protection and energy saving gas direct burning furnace | |
| CN219776142U (en) | Coarse bran hot-blast stove of grain drier | |
| CN214620076U (en) | Biomass particle hot blast stove | |
| CN110617623A (en) | Adjustable hot-blast stove | |
| CN221881535U (en) | Efficient combustion cavity structure and firewood stove | |
| CN204757366U (en) | Hot air stove |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |