CN109737596A - A kind of compound combustion fluidized bed type twin furnace - Google Patents
A kind of compound combustion fluidized bed type twin furnace Download PDFInfo
- Publication number
- CN109737596A CN109737596A CN201910173638.8A CN201910173638A CN109737596A CN 109737596 A CN109737596 A CN 109737596A CN 201910173638 A CN201910173638 A CN 201910173638A CN 109737596 A CN109737596 A CN 109737596A
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- China
- Prior art keywords
- water
- wall
- cooling wall
- side water
- burner hearth
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 40
- 150000001875 compounds Chemical class 0.000 title claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000002028 Biomass Substances 0.000 claims abstract description 26
- 239000000446 fuel Substances 0.000 claims abstract description 22
- 239000012528 membrane Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 206010012735 Diarrhoea Diseases 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 239000003245 coal Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 239000011236 particulate material Substances 0.000 claims description 3
- 230000003319 supportive effect Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 abstract description 6
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Landscapes
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The present invention discloses a kind of compound combustion fluidized bed type twin furnace, including boiler furnace part, combustion system part.Double-furnace structure is arranged in the boiler furnace, and the double-furnace structure includes burner hearth I and burner hearth II, and the burner hearth I is made of the space that front side water-cooling wall top, water cooled wind chamber membrane wall, sealing plate, side wall top, rear side water-cooling wall top surround；The burner hearth II is made of the space that front side water-cooling wall, rear side water-cooling wall, side wall surround；The features such as high, the stable structure with support strength keeps biomass fuel dry in burner hearth, realization fuel energy directly bundling full combustion, reduction discharged nitrous oxides, energy conservation and environmental protection.
Description
Technical field
The present invention relates to boiler technology fields, especially can satisfy the discharge of national emission standard of air pollutants for boilers
It is required that solving the moisture height after biomass bundling, calorific value is low, cannot directly burn, and burns insufficient, slagging is serious, nitrogen oxidation
Object concentration of emission is high, pollutes a kind of compound combustion fluidized bed type twin furnace of environment.
Background technique
It is well known that the fossil fuel as main energy sources source is fast as society is to the growing of energy demand
It reduces fastly.Therefore, a kind of reproducible alternative energy source is found, the focus of social common concern is become.Biomass energy is important
Renewable energy, have the characteristics that green, low-carbon, cleaning, renewable.Accelerating biomass energy development and utilization becomes it in weight
Weight.However the generally existing water content of current biomass fuel is higher, calorific value is low, cannot directly bundling burn, it is necessary to by moisture
It can just burn after drying, increase use cost, burn insufficient, discharged nitrous oxides concentration is high, and slagging is serious, boiler hot
Low efficiency.For this purpose, provide it is a kind of how biomass fuel to be dried in furnace, can direct bundling full combustion, subtract
Few discharged nitrous oxides, solve clogging problems, improve the boiler of boiler thermal efficiency, become problem in the urgent need to address at present.
Summary of the invention
The purpose of the present invention is: it is corrected for prior art common problem, overcome the deficiencies in the prior art
And defect, a kind of compound combustion fluidized bed type twin furnace, high intensity support are provided, structure safety and stability enables biomass fuel
It is dry in burner hearth, and then realize fuel energy directly bundling full combustion, discharged nitrous oxides are reduced, to improve boiler thermal effect
A kind of compound combustion fluidized bed type twin furnace of rate.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of compound combustion fluidized bed type twin furnace, including boiler furnace part, combustion system part.The pot
Double-furnace structure is arranged in furnace burner hearth, and the chamber structure includes front side water-cooling wall, front and back side wall upper collecting chamber, front side water-cooling wall
Lower header, rear side water-cooling wall, rear side water-cooling wall lower header, side wall, side wall upper collecting chamber, side wall lower header, water
Cold air chamber, the water-cooling wall are connected with header.
Optionally, the double-furnace structure includes burner hearth I and burner hearth II, and the burner hearth I is by front side water-cooling wall top, water cooling
The space that air compartment membrane wall, sealing plate, side wall top, rear side water-cooling wall top surround is constituted；The burner hearth II is by entire
The space that front side water-cooling wall, rear side water-cooling wall, side wall surround is constituted；Front side water-cooling wall upper end and front and back side water
The connection of cold wall upper collecting chamber, front side water-cooling wall lower end are connect with the front side water-cooling wall lower header, the side wall upper end
It is connect with the side wall upper collecting chamber, the side wall lower end is connect with the side wall lower header, the water cooling wind
Room membrane wall upper end is connect with the water cooled wind chamber upper collecting chamber, water cooled wind chamber membrane wall lower end and the water cooled wind chamber next part
Case connection；Rear side water-cooling wall upper end is connect with the front and back side wall upper collecting chamber, rear side water-cooling wall lower end and institute
Rear side water-cooling wall lower header connection is stated, offers exhanst gas outlet above the rear side water-cooling wall.
Optionally, the biomass combustion room is designed as U-shaped structure, is bent by the front side water-cooling wall lower part of lower part convex
The pipe structure of having loose bowels of stagger arrangement, water cooled wind chamber membrane wall top are bent into the space structure for having loose bowels pipe structure and sealing plate surrounds of stagger arrangement
At wherein the pipe of having loose bowels of front side water-cooling wall lower part can make the flame of II lower part of burner hearth directly heat the indoor life of biomass combustion
Biomass fuel makes it play the role of drying and burning, and then solution biomass fuel directly bundling cannot burn and cannot sufficiently fire
The problem of burning.
Optionally, the water cooled wind chamber is designed as U-shaped structure, by water cooled wind chamber lower header, water cooled wind chamber upper collecting chamber, water cooling
The space that air compartment membrane wall and blast cap surround is constituted, and U-shaped water cooled wind chamber membrane wall top is bent into the pipe structure of having loose bowels of stagger arrangement,
A part plays a supportive role, and is covered with blast cap above a part of water cooled wind chamber membrane wall and plays and send wind action.
Optionally, the fuel that the burner hearth I burns is bundling material, broken material, particulate material.The fuel that burner hearth II burns is made a living
Material grains, broken material, coal.
Optionally, the combustion system of the burner hearth II is fluidized bed form.
The present invention achieves following technical effect compared with the existing technology: the design of twin furnace and water cooled wind chamber makes originally not
Can directly bundling burning biomass fuel be possibly realized, can full combustion, reduce discharged nitrous oxides, to improve boiler hot
Efficiency, structure are simple.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only the embodiment of the present invention, right
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is compound combustion fluidized bed type twin furnace embodiment structure main view of the present invention.
In figure: 1 side wall upper collecting chamber, 2 front and back side wall upper collecting chambers, 3 sealing plates, 4 biomass combustion rooms, 5 water coolings
Air compartment upper collecting chamber, 6 air inlets, 7 blast caps, 8 water cooled wind chamber lower headers, 9 water cooled wind chambers, 10 water cooled wind chamber membrane walls, 11 flue gases go out
Mouthful, 12 front side water-cooling walls, 13 burner hearths I, 14 rear side water-cooling walls, 15 side walls, 16 burner hearths II, 17 fluidized bed water cooled wind chambers, 18
Front side water-cooling wall lower header, 19 rear side water-cooling wall lower headers, 20 side wall lower headers.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art without making creative work it is obtained it is all its
His embodiment, shall fall within the protection scope of the present invention.
The purpose of the present invention is: it is corrected for prior art common problem, overcome the deficiencies in the prior art
And defect, a kind of compound combustion fluidized bed type twin furnace, high intensity support are provided, structure safety and stability enables biomass fuel
It is dry in burner hearth, and then realize fuel energy directly bundling full combustion, discharged nitrous oxides are reduced, to improve boiler thermal effect
A kind of compound combustion fluidized bed type twin furnace of rate.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Embodiment
The present invention provides a kind of compound combustion fluidized bed type twin furnace, as shown in Figure 1, including boiler furnace part, combustion system
Part.Boiler furnace part includes side wall upper collecting chamber 1, front and back side wall upper collecting chamber 2, sealing plate 3, biomass combustion room
4, water cooled wind chamber upper collecting chamber 5, air inlet 6, blast cap 7, water cooled wind chamber lower header 8, water cooled wind chamber 9, water cooled wind chamber membrane wall 10, cigarette
Gas outlet 11, front side water-cooling wall 12, burner hearth I 13, rear side water-cooling wall 14, side wall 15, burner hearth II 16, fluidized bed water cooled wind chamber
17, front side water-cooling wall lower header 18, rear side water-cooling wall lower header 19, side wall lower header 20.
Specifically, burner hearth I 13 is by 12 top of front side water-cooling wall, water cooled wind chamber membrane wall 10, sealing plate 3, side wall 15
The space that top, 14 top of rear side water-cooling wall surround is constituted.
Burner hearth II is by front side water-cooling wall 12, front and back side wall upper collecting chamber 2, front side water-cooling wall lower header 18, rear side water cooling
The space that wall 14, rear side water-cooling wall lower header 19, side wall 15, side wall upper collecting chamber 1, side wall lower header 20 surround
It constitutes.
Top that lower part that biomass combustion room 4 is bent by front side water-cooling wall 12, water cooled wind chamber membrane wall 10 are bent, sealing
The space that plate 3 and 15 lower part of side wall surround is constituted.
The course of work and principle of the invention are as follows: be that biological particles, broken material and coal are fallen under the effect of gravity first
On fire grate, the fluidized bed being sent into burner hearth II 16 under machine power effect burns, wherein the heat generated is by burner hearth
Front side water-cooling wall 12, rear side water-cooling wall 14, side wall 15 absorb, while the heat and thermal-flame that generate pass through front side water cooling
The pipe of having loose bowels of 12 lower part of wall bending by bundling biomass fuel in biomass combustion room 4, directly broken biomass fuel, particulate material
Deng dry to make its burning, the heat of generation is equally by front side water-cooling wall 12, rear side water-cooling wall 14, and side wall 15 absorbs, cooling
Flue gas afterwards is discharged by exhanst gas outlet, completes the course of work of boiler smoke burning.Need to stress is this technology twin furnace
Thorax structure and water cooled wind chamber structure, the former is mainly made of burner hearth I 13 and burner hearth II 16, and burner hearth I 13 is mainly by burner hearth II 16
The biomass fuel dry heat of bundling in biomass combustion room 4 is made its combustion by the high temperature heat and flame that fuel combustion generates
It burns, it is insufficient to solve the problems, such as that the biomass fuel of direct bundling cannot burn and burn.The latter's water cooled wind chamber 9 is designed as U
Type, U-shaped water cooled wind chamber membrane wall top are bent into the pipe structure of having loose bowels of stagger arrangement, and a part plays a supportive role, a part of water cooling
It is covered with blast cap above air compartment membrane wall and plays and send wind action.
Specific examples are applied in the present invention, and principle and implementation of the present invention are described, above embodiments
Illustrate to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, according to
According to thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (6)
1. a kind of compound combustion fluidized bed type twin furnace, it is characterised in that: including boiler furnace part, combustion system part；Institute
Boiler furnace setting double-furnace structure is stated, the chamber structure includes front side water-cooling wall, front and back side wall upper collecting chamber, front side water
Cold wall lower header, rear side water-cooling wall, rear side water-cooling wall lower header, side wall, side wall upper collecting chamber, side wall next part
Case, water cooled wind chamber, the water-cooling wall are connected with header.
2. compound combustion fluidized bed type twin furnace according to claim 1, it is characterised in that: the double-furnace structure includes
Burner hearth I and burner hearth II, the burner hearth I by front side water-cooling wall top, water cooled wind chamber membrane wall, sealing plate, side wall top, after
The space that side wall top surrounds is constituted；The burner hearth II is surrounded by entire front side water-cooling wall, rear side water-cooling wall, side wall
Space constitute；Front side water-cooling wall upper end is connect with the front and back side wall upper collecting chamber, front side water-cooling wall lower end
It is connect with the front side water-cooling wall lower header, the side wall upper end is connect with the side wall upper collecting chamber, the side water
Cold wall lower end is connect with the side wall lower header, and water cooled wind chamber membrane wall upper end and the water cooled wind chamber upper collecting chamber connect
It connects, water cooled wind chamber membrane wall lower end is connect with the water cooled wind chamber lower header；Rear side water-cooling wall upper end and it is described before
The connection of rear side water-cooling wall upper collecting chamber, rear side water-cooling wall lower end are connect with the rear side water-cooling wall lower header, the rear side water
Exhanst gas outlet is offered above cold wall.
3. compound combustion fluidized bed type twin furnace according to claim 2, it is characterised in that: the biomass combustion room is set
It is calculated as U-shaped structure, the pipe structure of having loose bowels of stagger arrangement is bent into, on water cooled wind chamber membrane wall by the front side water-cooling wall lower part of lower part convex
Portion be bent into stagger arrangement have loose bowels pipe structure and space that sealing plate surrounds is constituted, wherein the pipe of having loose bowels of front side water-cooling wall lower part can be with
So that the flame of II lower part of burner hearth is directly heated the indoor biomass fuel of biomass combustion makes it play the role of drying and burning, into
And solving the problems, such as biomass fuel directly bundling burning and cannot be unable to full combustion.
4. compound combustion fluidized bed type twin furnace according to claim 3, it is characterised in that: the water cooled wind chamber is designed as
U-shaped structure is made of, U the space that water cooled wind chamber lower header, water cooled wind chamber upper collecting chamber, water cooled wind chamber membrane wall and blast cap surround
The water cooled wind chamber membrane wall top of type is bent into the pipe structure of having loose bowels of stagger arrangement, and a part plays a supportive role, a part of water cooled wind chamber
It is covered with blast cap above membrane wall and plays and send wind action.
5. compound combustion fluidized bed type twin furnace according to claim 4, the fuel that the burner hearth I burns be bundling material,
Broken material, particulate material；The fuel that burner hearth II burns is biological particles, broken material, coal.
6. compound combustion fluidized bed type twin furnace according to claim 5, the combustion system of the burner hearth II is fluidized bed
Form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910173638.8A CN109737596B (en) | 2019-03-08 | 2019-03-08 | Composite combustion fluidized bed type double-hearth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910173638.8A CN109737596B (en) | 2019-03-08 | 2019-03-08 | Composite combustion fluidized bed type double-hearth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109737596A true CN109737596A (en) | 2019-05-10 |
| CN109737596B CN109737596B (en) | 2024-05-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910173638.8A Active CN109737596B (en) | 2019-03-08 | 2019-03-08 | Composite combustion fluidized bed type double-hearth |
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| Country | Link |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005195237A (en) * | 2004-01-06 | 2005-07-21 | Yoshimine:Kk | Boiler |
| CN1924441A (en) * | 2006-08-25 | 2007-03-07 | 河南大学 | Composite combustion boiler and composite combustion method thereof |
| CN201246733Y (en) * | 2008-07-18 | 2009-05-27 | 北京国电龙源杭锅蓝琨能源工程技术有限公司 | Angle pipe type biomass direct combustion boiler |
| CN203162937U (en) * | 2013-03-29 | 2013-08-28 | 武汉凯迪工程技术研究总院有限公司 | Water cooling air chamber of biomass circulating fluidized bed boiler |
| CN104613465A (en) * | 2015-01-29 | 2015-05-13 | 广州市劲业节能技术有限公司 | Cofiring-type biomass fuel boiler |
| CN204388037U (en) * | 2015-01-01 | 2015-06-10 | 沈阳盛纳机械制造有限公司 | The two combustion steam boiler of new and effective living beings |
| CN105318535A (en) * | 2014-08-04 | 2016-02-10 | 哈尔滨四方锅炉安装有限公司 | Single-boiler-barrel transversely-arranging type chain grate stoker spraying and denitration corner-tube boiler |
| CN209944737U (en) * | 2019-03-08 | 2020-01-14 | 哈尔滨四方锅炉有限公司 | Composite combustion fluidized bed type double-hearth |
-
2019
- 2019-03-08 CN CN201910173638.8A patent/CN109737596B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005195237A (en) * | 2004-01-06 | 2005-07-21 | Yoshimine:Kk | Boiler |
| CN1924441A (en) * | 2006-08-25 | 2007-03-07 | 河南大学 | Composite combustion boiler and composite combustion method thereof |
| CN201246733Y (en) * | 2008-07-18 | 2009-05-27 | 北京国电龙源杭锅蓝琨能源工程技术有限公司 | Angle pipe type biomass direct combustion boiler |
| CN203162937U (en) * | 2013-03-29 | 2013-08-28 | 武汉凯迪工程技术研究总院有限公司 | Water cooling air chamber of biomass circulating fluidized bed boiler |
| CN105318535A (en) * | 2014-08-04 | 2016-02-10 | 哈尔滨四方锅炉安装有限公司 | Single-boiler-barrel transversely-arranging type chain grate stoker spraying and denitration corner-tube boiler |
| CN204388037U (en) * | 2015-01-01 | 2015-06-10 | 沈阳盛纳机械制造有限公司 | The two combustion steam boiler of new and effective living beings |
| CN104613465A (en) * | 2015-01-29 | 2015-05-13 | 广州市劲业节能技术有限公司 | Cofiring-type biomass fuel boiler |
| CN209944737U (en) * | 2019-03-08 | 2020-01-14 | 哈尔滨四方锅炉有限公司 | Composite combustion fluidized bed type double-hearth |
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| Publication number | Publication date |
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| CN109737596B (en) | 2024-05-31 |
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