CN102003788A - Coal-fired boiler provided with reverse homogenous air supply device - Google Patents
Coal-fired boiler provided with reverse homogenous air supply device Download PDFInfo
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- CN102003788A CN102003788A CN2010105633854A CN201010563385A CN102003788A CN 102003788 A CN102003788 A CN 102003788A CN 2010105633854 A CN2010105633854 A CN 2010105633854A CN 201010563385 A CN201010563385 A CN 201010563385A CN 102003788 A CN102003788 A CN 102003788A
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- ventilation device
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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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The invention relates to a coal-fired boiler provided with reverse homogenous air supply device. An outer roof, an inner roof, a right outer side plate, a right inner side plate, a front outer plate, a front inner plate, a base and a health water cavity form a water jacket; the front outer plate and the front inner plate are connected by virtue of an upper boiler door, a middle boiler door and a lower boiler door, the right outer side plate and the right inner side plate are connected by virtue of a deashing door, the outer roof and the inner roof are connected by virtue of a smoke outlet, the front inner plate and a rear inner plate are connected by virtue of a water pipe and the hearth water cavity, the outer roof is provided with an atmosphere pipe communicated with the water jacket, a homogenous air supply device is arranged in a water cavity between the right outer side plate and the right inner side plate, and a homogenous air supply outlet is arranged in the hearth. Twenty eight longitudinal gaps with maximum included angle of 42-118 degrees are arranged on the surface of the air supply outlet of the homogeneous air supply device, and measurement of each gap is 8x107.5mm. The invention has small volume, easy operation, good smoke removal effect and high boiler efficiency. Atmospheric pollution can be effectively prevented, and energy source can be saved.
Description
Affiliated technical field
The present invention relates to a kind of coal-burning boiler, especially a kind of coal-burning boiler with reverse balanced ventilation device.
Background technology
The structure that existing small scall coal-fired boiler adopts anti-burning of vertical double fire grate or vertical positive sintering to close secondary wind more.All there are many problems in these two kinds of structures.The anti-furnace operating complexity of burning of vertical double fire grate; Burning has some cycles; Boiler furnace is big, and the steel consumption is bigger.Vertical positive sintering closes the easy scaling loss of gas generator air-distribution device of secondary wind; The constant excess air coefficient that causes of air output was excessive when boiler load changed, and the thermal efficiency descends; Can not coal in the operating process too much, otherwise shortcomings such as over-emitting black exhaust.
Summary of the invention
In order to overcome above-mentioned defective, the present invention proposes coal-burning boiler with special oppositely even preheating air-supply arrangement.
Technical scheme of the present invention is, a kind of novel coal boiler with reverse balanced ventilation device, by roof sheet 1, inside ceiling panel 2, right outer panel 6, Right Inboard plate 7, preceding outside plate 10, preceding inner panel 15, base 16 and burner hearth water cavity 9 are formed water jacket, preceding outside plate 10 and preceding inner panel 15 are by upper furnace door 11, middle fire door 12, lower furnace door 13 connects, right outer panel 6 is connected by shoot door 8 with Right Inboard plate 7, roof sheet 1 is connected by exhaust opening 4 with inside ceiling panel 2, preceding inner panel 15 is by water pipe 5, burner hearth water cavity 9 connects, roof sheet 1 is provided with the air pipe 3 that communicates with water jacket, right outer panel 6, be provided with balanced ventilation device 14 between the Right Inboard plate 7 in the water cavity, be provided with the balanced ventilation outlet in the burner hearth.It is 28 longitudinal slots of 42 °～118 ° that balanced ventilation device 14 air-supply outlet garden tube-surfaces are provided with maximum angle, each gap size is 8 * 107.5mm, water pipe 5 is formed burner hearth as water-cooled grate and burner hearth water cavity 9, and balanced ventilation device 14 is 220mm～420mm with the water-cooled grate surface distance.
Principle of the present invention and characteristics: new coal area fully burns under the oppositely pre-hot blast effect of upper furnace air-supply arrangement, or else forfeiting under the situation of coal the new coal area below is subjected to high temperature coke radiant heat and begins to separate out volatile matter, flammable hydrocarbon and small carbon granules and oxygen mix enter high temperature fire combustion district and carry out completing combustion, effectively controlled the eliminating of small carbon granules, under the oppositely at a high speed pre-again hot blast effect, flame and flue gas rotate at a high speed and make dust lose kinetic energy with tube bank collision and be not excluded, effectively control oke exhaust blackness and concentration of emission, tube bank and water cavity wall have effectively absorbed convection current and radiant heat under the thermal-flame effect simultaneously, effectively improve the efficient of boiler.
The main cause that forms the black smoke of contaminated environment in theory is that the volatile matter of separating out when coal does not have with the abundant catalytic combustion of oxygen when burning and newly coal does not ignite does not have and the abundant mixed combustion of oxygen.Form hydrocarbons such as C8H under anoxic and the inadequate situation of burning, this is the reason that the boiler black smoke forms.Under the even situation of sending to pre-hot blast of high-speed reverse, improved fire box temperature, effectively made the abundant mixed combustion of oxygen and comburant, heavy and avoided forming the formation of hydrocarbons such as carbon black, and then make very ideal of boiler exhaust gas index.
What burn fully is the assurance of high efficiency boiler rate, this boiler mainly adopt the water cavity inwall as the radiation heating-surface water pipe as the heat convection face, water pipe inclination certain angle helps the water circulation, this kind of boiler convection heating surface and burner hearth water cavity appearance radiation heating-surface are arranged compact, make boiler height lower.The consumption of steel is also less relatively.Though this boiler is complete back firing boiler, the stoker is that fireman's labour intensity is relatively low by positive burning boiler method of operating coal and scarfing cinder ash disposal.
The invention has the beneficial effects as follows that furnace binding and combustion system make that the boiler exhaust gas effect is splendid, boiler efficiency height, volume are little.Effectively air conservation, energy savings.Boiler power 0.07MW～1.4MW, 0.1MPa can be widely used in production, life.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention.
Among the figure: 1, roof sheet, 2, inside ceiling panel, 3, air pipe, 4, exhaust opening, 5, water pipe, 6, right outer panel, 7, the Right Inboard plate, 8, shoot door 9, burner hearth water cavity, 10, preceding outside plate, 11, upper furnace door, 12, middle fire door, 13, lower furnace door 14, balanced ventilation device 15, front and back inner panel, 16, base.
The specific embodiment
Typical products CLG0.35-95/70AII type coal-fired hot-water boiler, top is that water cavity, water cavity inboard are provided with all that tube bank, left side or right upper portion are provided with the water cavity burner hearth and water-cooled grate, foot tube bank replace lower fire grating around the square structure.
Boiler adopts the pre-hot blast of burner hearth top blast, minimum about 2 meters of chimney height in the practical application.Fire coal is from 11 upper furnace door inputs during boiler operatiopn, pre-hot blast enters the high-temperature region, heats between new coal area and high-temperature region and separate out volatile matter by new coal area, producing flame burns, because air-supply is evenly reliable, make combustible fully burn, avoid forming the black smoke of contaminated environment, the dirt that while flue gas and tube bank high velocity impact make partial fume carry loses speed and is deposited in boiler bottom, this process makes boiler combustion abundant, and smoke evacuation reaches very desirable effect and discharges boiler at last.
The design of boiler so different from the past is so that this boiler has volume compact, the foot of exerting oneself, environment-friendly high-efficiency, the advantage such as easy and simple to handle.
Claims (4)
1. coal-burning boiler with reverse balanced ventilation device, by roof sheet (1), inside ceiling panel (2), right outer panel (6), Right Inboard plate (7), preceding outside plate (10), preceding inner panel (15), base (16) and burner hearth water cavity (9) are formed water jacket, preceding outside plate (10) and preceding inner panel (15) are by upper furnace door (11), middle fire door (12), lower furnace door (13) connects, right outer panel (6) is connected by shoot door (8) with Right Inboard plate (7), roof sheet (1) is connected by exhaust opening (4) with inside ceiling panel (2), preceding inner panel (15) is by water pipe (5), burner hearth water cavity (9) connects, roof sheet (1) is provided with the air pipe (3) that communicates with water jacket, it is characterized in that right outer panel (6), be provided with balanced ventilation device (14) between the Right Inboard plate (7) in the water cavity, be provided with the balanced ventilation outlet in the burner hearth.
2. a kind of novel coal boiler according to claim 1 with reverse balanced ventilation device, it is characterized in that it is that 28 longitudinal slots, each gap size of 42 °～118 ° is 8 * 107.5mm that described balanced ventilation device (14) air-supply outlet garden tube-surface is provided with maximum angle.
3. a kind of novel coal boiler with reverse balanced ventilation device according to claim 1 is characterized in that, described water pipe (5) is formed burner hearth as water-cooled grate and burner hearth water cavity (9).
4. a kind of novel coal boiler with reverse balanced ventilation device according to claim 1 is characterized in that, described balanced ventilation device (14) is 220mm～420mm with the water-cooled grate surface distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105633854A CN102003788A (en) | 2010-11-19 | 2010-11-19 | Coal-fired boiler provided with reverse homogenous air supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105633854A CN102003788A (en) | 2010-11-19 | 2010-11-19 | Coal-fired boiler provided with reverse homogenous air supply device |
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| Publication Number | Publication Date |
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| CN102003788A true CN102003788A (en) | 2011-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105633854A Pending CN102003788A (en) | 2010-11-19 | 2010-11-19 | Coal-fired boiler provided with reverse homogenous air supply device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3109916A1 (en) * | 1981-03-14 | 1982-09-23 | Hans 3559 Battenberg Vießmann | Heating boiler for the combustion of faggot wood |
| CN2127463Y (en) * | 1992-02-28 | 1993-02-24 | 杨贵森 | Blast apparatus for vertical boiler |
| CN2508128Y (en) * | 2001-11-27 | 2002-08-28 | 刘荆湖 | Combustion furnace |
| CN2698793Y (en) * | 2004-05-13 | 2005-05-11 | 马忠国 | Environment-friendly type continuous gas producer |
| CN201242263Y (en) * | 2008-07-09 | 2009-05-20 | 余忠 | Converse combustion boiler |
| CN201514032U (en) * | 2008-12-26 | 2010-06-23 | 北京盛昌绿能科技有限公司 | Normal-pressure hot-water boiler using biomass straw briquette fuel for combustion |
| CN202040971U (en) * | 2010-11-19 | 2011-11-16 | 大连圣鼎工业装备有限公司 | Coal-fired boiler with reverse uniform air supplying device |
-
2010
- 2010-11-19 CN CN2010105633854A patent/CN102003788A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3109916A1 (en) * | 1981-03-14 | 1982-09-23 | Hans 3559 Battenberg Vießmann | Heating boiler for the combustion of faggot wood |
| CN2127463Y (en) * | 1992-02-28 | 1993-02-24 | 杨贵森 | Blast apparatus for vertical boiler |
| CN2508128Y (en) * | 2001-11-27 | 2002-08-28 | 刘荆湖 | Combustion furnace |
| CN2698793Y (en) * | 2004-05-13 | 2005-05-11 | 马忠国 | Environment-friendly type continuous gas producer |
| CN201242263Y (en) * | 2008-07-09 | 2009-05-20 | 余忠 | Converse combustion boiler |
| CN201514032U (en) * | 2008-12-26 | 2010-06-23 | 北京盛昌绿能科技有限公司 | Normal-pressure hot-water boiler using biomass straw briquette fuel for combustion |
| CN202040971U (en) * | 2010-11-19 | 2011-11-16 | 大连圣鼎工业装备有限公司 | Coal-fired boiler with reverse uniform air supplying device |
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Application publication date: 20110406 |