CN2163303Y - Bottom igniting device of fluidized-bed boiler - Google Patents
Bottom igniting device of fluidized-bed boiler Download PDFInfo
- Publication number
- CN2163303Y CN2163303Y CN 92233893 CN92233893U CN2163303Y CN 2163303 Y CN2163303 Y CN 2163303Y CN 92233893 CN92233893 CN 92233893 CN 92233893 U CN92233893 U CN 92233893U CN 2163303 Y CN2163303 Y CN 2163303Y
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- Prior art keywords
- hot
- hot wind
- fluidized
- wind
- bed
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- Expired - Fee Related
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Abstract
The utility model relates to a bottom igniting device of a fluidized-bed boiler. The utility model is a device which is arranged on the lower side of a fluidized bed and the front side of a wind box and is composed of a hot wind boiler with the fuel oil or the coal gas and a wind distribution chamber connected with the hot wind boiler. The fume and the cold air can be mixed into hot wind with definite temperature in the hot wind boiler, after the hot wind passes through the wind distribution chamber, the hot wind passes through a wind distribution plate and a nozzle button, and the hot wind can heat the material layer till ignition under the fluidized state. The bottom igniting device overcomes the disadvantages that the top igniting method has difficult operation, low ignition heat utilization rate and easy coking. The utility model can realize the procedure control of the fluidized-bed ignition process and reduce labor intensity of workers.
Description
The utility model relates to the long distance ignition device.Be a kind of ignition trigger device that is used for fluid-bed combustion boiler or industrial furnace, be installed in the below of fluid bed during use.
At present, in the fluidized-bed combustion boiler or industrial furnace of industrial application, still find no the device that is used for the igniting of bed below.The ignition trigger of bed material generally is the mode of lighting a fire above bed with manually, promptly is placed on bed top with firewood, charcoal or oil gun, slowly adds the hott bed material after allowing it light, until lighting.When this mode is lighted fluid bed, the utilization rate of igniting heat most of heat very low, burning is taken away by air inducing, the duration of ignition is long, expend that fuel is many, labor strength is big when lighting a fire, and the igniting success or not depends primarily on experience, operate bad, generation fire extinguishing or coking probably, the success rate of igniting do not guarantee that particularly the igniting of large-scale fluidized bed boiler is just difficult more.
The purpose of this utility model is for overcoming the disadvantage of existing sparking mode, a kind of processing ease is provided, saves labor, can realize ignition procedure control, improves stable, the igniter rapidly of igniting heat utilization ratio, firing up again greatly.
The purpose of this utility model is to realize like this
The down-firing device comprises that hot blast takes place and hot blast is carried two parts, and hot blast part takes place is made of the burner hot-blast stove of being with fuel oil or coal gas.The hot blast transport portion then is an air compartment, and hot-blast stove and air compartment are connected, and 500～800 ℃ the hot blast of being sent here by hot-blast stove is delivered to fluid bed through the outlet of air compartment like this, makes the material on the bed be heated and light.
Be illustrated below in conjunction with embodiment
Fig. 1 is this down-firing device installment state figure
Fig. 2 is this down-firing apparatus structure schematic diagram
As seen from the figure, this device is by fuel oil or gas burner (1); Igniter (2); Hot-blast stove (3); Air compartment (4); Air distribution plate and blast cap formations such as (5).The hot-blast stove burner hearth is led in the outlet of burner (1).The wall of air compartment (4) is made by refractory material, and its end communicates with the hot-blast stove outlet, and the other end is equipped with air distribution plate and blast cap (5), and air distribution plate is made by exotic material, also can make water-cooled, and during use, this end is connected with the fluid bed below.Electric igniter (2) is arranged near the burner (1).One air-supply passageway is arranged around the hot-blast stove burner hearth, and there is an air inlet in the passageway near an end of air compartment (4), and the other end leads to the hot-blast stove burner hearth.Like this, flue gas by burner and the cold air by the passageway fully mix in burner hearth.The hot air temperature of mixing can regulate and control easily.
This down-firing apparatus structure is simple, and hot blast passes whole bed from bottom to up during use under bed materials flow state, with the bed material strong heat exchange takes place, the success rate of igniting reaches 100%, in addition, this igniter can realize programme-control, reduces labour intensity greatly and saves manpower.
Claims (3)
1, a kind of fluid-bed combustion boiler down-firing device that is used for, it is characterized in that: hot-blast stove (3), air compartment (4), air distribution plate and blast cap (5) by the burner that has fuel oil or coal gas (1) constitute, the hot-blast stove burner hearth is led in the outlet of burner, air compartment's (4) one ends communicate with the hot-blast stove outlet, the other end is equipped with air distribution plate, blast cap (5), and an air inlet is arranged in the hot-blast stove burner hearth.
2, down-firing device according to claim 1 is characterized in that the burner hearth of hot-blast stove (3) has an air-supply passageway on every side, and the passageway is provided with an air inlet near an end of air compartment (4), and the other end in passageway leads to the hot-blast stove burner hearth.
3, down-firing device according to claim 1 and 2 is characterized in that described air compartment wall liner has the structure of refractory layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92233893 CN2163303Y (en) | 1992-09-24 | 1992-09-24 | Bottom igniting device of fluidized-bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92233893 CN2163303Y (en) | 1992-09-24 | 1992-09-24 | Bottom igniting device of fluidized-bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2163303Y true CN2163303Y (en) | 1994-04-27 |
Family
ID=33776102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92233893 Expired - Fee Related CN2163303Y (en) | 1992-09-24 | 1992-09-24 | Bottom igniting device of fluidized-bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2163303Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100422637C (en) * | 2006-11-12 | 2008-10-01 | 东北电力大学 | High-temperature air lighting system under bed for fluidized bed and circulating fluidized bed boiler |
| CN101799171A (en) * | 2010-03-05 | 2010-08-11 | 中国铝业股份有限公司 | Method for preventing damage of ignition air duct of boiler burner |
| CN101476720B (en) * | 2008-11-11 | 2010-12-15 | 烟台双强燃烧控制工程有限公司 | Ignition device under circulating sulfuration bed of boiler |
| CN102454984A (en) * | 2010-11-01 | 2012-05-16 | 烟台龙源电力技术股份有限公司 | Air channel ignition system and ignition burner under bed |
| CN105020706A (en) * | 2015-07-26 | 2015-11-04 | 崔猛 | Solid state ignition method for circulating fluidized bed boiler |
-
1992
- 1992-09-24 CN CN 92233893 patent/CN2163303Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100422637C (en) * | 2006-11-12 | 2008-10-01 | 东北电力大学 | High-temperature air lighting system under bed for fluidized bed and circulating fluidized bed boiler |
| CN101476720B (en) * | 2008-11-11 | 2010-12-15 | 烟台双强燃烧控制工程有限公司 | Ignition device under circulating sulfuration bed of boiler |
| CN101799171A (en) * | 2010-03-05 | 2010-08-11 | 中国铝业股份有限公司 | Method for preventing damage of ignition air duct of boiler burner |
| CN102454984A (en) * | 2010-11-01 | 2012-05-16 | 烟台龙源电力技术股份有限公司 | Air channel ignition system and ignition burner under bed |
| CN102454984B (en) * | 2010-11-01 | 2013-09-18 | 烟台龙源电力技术股份有限公司 | Air channel ignition system and ignition burner under bed |
| CN105020706A (en) * | 2015-07-26 | 2015-11-04 | 崔猛 | Solid state ignition method for circulating fluidized bed boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |