CN106168377B - A kind of boiler hot flue gas igniter - Google Patents
A kind of boiler hot flue gas igniter Download PDFInfo
- Publication number
- CN106168377B CN106168377B CN201610663810.4A CN201610663810A CN106168377B CN 106168377 B CN106168377 B CN 106168377B CN 201610663810 A CN201610663810 A CN 201610663810A CN 106168377 B CN106168377 B CN 106168377B
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- CN
- China
- Prior art keywords
- distribution plate
- air distribution
- upper strata
- lower floor
- bed
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q13/00—Igniters not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2206/00—Fluidised bed combustion
- F23C2206/10—Circulating fluidised bed
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention discloses a kind of boiler hot flue gas igniter,Including the oil storage tank being sequentially connected,Oil strainer,Oil feed pump,Hot-blast stove,Hot-blast stove is provided with manhole door and peep-hole,Hot-blast stove entrance is provided with arc ignition device and oil burner,Hot blast outlet of still is provided with thermocouple and hot-blast stove is connected by pipeline with isobaric air compartment,Pipeline is provided with air volume meter,Circulating fluidized bed combustor is provided with the top of isobaric air compartment,Lower floor's air distribution plate and upper strata air distribution plate have been sequentially arranged between isobaric air compartment and circulating fluidized bed combustor,Lower floor's air distribution plate is horizontal tabular,The clearance D of upper strata air distribution plate and lower floor's air distribution plate is incremented by from two lateral centers of upper strata air distribution plate,It is evenly arranged with lower floor's air distribution plate on lower floor's igniting initial bed and upper strata air distribution plate and is evenly arranged with upper strata igniting initial bed,The bed material particle of upper strata igniting initial bed is more than the bed material particle of lower floor's igniting initial bed,Circulating fluidized bed combustor is provided with temperature sensor.Reduce the duration of ignition.
Description
Technical field
The present invention relates to a kind of boiler hot flue gas igniter.
Background technology
The boiler main that power plant is used for generating electricity will have two classes：Coal-powder boiler and CFBB, wherein, recirculating fluidized bed pot
Stove technology is the high-efficiency low-pollution cleaning burning branch art developed rapidly in recent ten years.
For CFBB, igniter is its important component, for ensureing fuel into energy after furnace chamber
It is stable to burn, in existing design, in one layer of air distribution plate upper berth igniting bed material, too many air quantity is not only expended, and extend the duration of ignition.
The content of the invention
In view of the above-mentioned problems, the present invention provides a kind of boiler hot flue gas igniter, existing structure is improved, reduced
The duration of ignition, avoid expending too many air quantity.
To realize above-mentioned technical purpose and the technique effect, the present invention is achieved through the following technical solutions：
A kind of boiler hot flue gas igniter, including oil storage tank, oil strainer, the oil feed pump being sequentially connected, the oil storage
Tank is connected by oil feed pump with hot-blast stove, and the hot-blast stove is provided with manhole door and peep-hole, it is characterised in that the hot-blast stove
Entrance is provided with arc ignition device and oil burner, the hot blast outlet of still be provided with thermocouple and hot-blast stove by pipeline with etc.
Pressure air compartment is connected, and the pipeline is provided with air volume meter, is provided with circulating fluidized bed combustor at the top of the isobaric air compartment, described etc.
Lower floor's air distribution plate and upper strata air distribution plate are sequentially arranged between pressure air compartment and circulating fluidized bed combustor, lower floor's air distribution plate is
Horizontal tabular, the clearance D of the upper strata air distribution plate and lower floor's air distribution plate are incremented by from two lateral centers of upper strata air distribution plate, institute
State to be evenly arranged with lower floor's air distribution plate on lower floor's igniting initial bed and upper strata air distribution plate and be evenly arranged with upper strata igniting initial bed,
The bed material particle of the upper strata igniting initial bed is more than the bed material particle of lower floor's igniting initial bed, the circulating fluidized bed combustor
It is provided with temperature sensor.
It is preferred that the air volume meter, thermocouple and temperature sensor are connected with CPU, the CPU controls oil feed pump.
It is preferred that the spacing of the upper strata air distribution plate and lower floor's air distribution plate is between 2-5cm.
It is preferred that hand valve is provided between the oil feed pump and hot-blast stove.
It is preferred that the bed material particle of lower floor's igniting initial bed is less than 4mm.
It is preferred that the bed material particle of the upper strata igniting initial bed is more than 4mm.
The beneficial effects of the invention are as follows：
Before CFBB igniting, first in the small igniting bed material of one layer of lower floor's air distribution plate upper berth particle, i.e. lower floor's point
The ashes after a fire bed of material, then in the bigger igniting bed material of one layer of upper strata air distribution plate upper berth particle, i.e. upper strata igniting initial bed, wherein, on
For layer igniting initial bed in the structure that both sides are low, centre is high, initial bed is lighted a fire mainly as incendiary source at initial stage, upper strata point ashes after a fire by lower floor
The bed of material is mainly used in maintaining later stage bed temperature, had both facilitated light a fire initial stage and had avoided the occurrence of coking in bed, meanwhile, avoid expending too many wind
Amount.In addition, oil feed pump is controlled by CPU, and it is easy and effective, optimal ignition results can be reached.
Brief description of the drawings
Fig. 1 is a kind of structural representation of boiler hot flue gas igniter of the present invention；
The mark meaning of accompanying drawing is as follows：
1：Peep-hole；2：Arc ignition device；3：Hot-blast stove；4：Oil burner；5：Manhole door；6：Thermocouple；7：Air volume meter；
8：Isobaric air compartment；9：Lower floor's air distribution plate；10：Lower floor's igniting initial bed；11：Upper strata air distribution plate；12：Upper strata igniting initial bed；13：
Circulating fluidized bed combustor；14：Oil feed pump；15：Oil strainer；16：Oil storage tank.
Embodiment
Technical solution of the present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, so that ability
The technical staff in domain can be better understood from the present invention and can be practiced, but illustrated embodiment is not as the limit to the present invention
It is fixed.
As shown in figure 1, a kind of boiler hot flue gas igniter, including be sequentially connected oil storage tank 16, oil strainer 15, supply
Oil pump 14, the oil storage tank 16 is connected by oil feed pump 14 with hot-blast stove 3, in Fig. 1, is set between oil feed pump 14 and hot-blast stove 3
There is hand valve, it is convenient to carry out manual control.
The hot-blast stove 3 is provided with manhole door 5 and peep-hole 1, and manhole door 5 comes in and goes out for people and overhauled, and peep-hole 1 can be direct
Observe the working condition in hot-blast stove 3.Wherein, the entrance of hot-blast stove 3 is provided with arc ignition device 2 and oil burner 4, described
The outlet of hot-blast stove 3 is provided with thermocouple 6.To avoid burning out the blast cap on air distribution plate, it is necessary to control the temperature of heat smoke, therefore,
Thermocouple 6 needs the outlet of face hot-blast stove 3, and preferably stretches into 90cm or so in hot-blast stove 3.
Hot-blast stove 3 is connected by pipeline with isobaric air compartment 8, and the pipeline is provided with air volume meter 7, and the isobaric air compartment 8 pushes up
Portion is provided with circulating fluidized bed combustor 13, has been sequentially arranged down between the isobaric air compartment 8 and circulating fluidized bed combustor 13
Layer air distribution plate 9 and upper strata air distribution plate 11, lower floor's air distribution plate 9 are horizontal tabular, the upper strata air distribution plate 11 and lower floor
The clearance D of air distribution plate 9 is incremented by from two lateral centers of upper strata air distribution plate 11.In Fig. 1, the shape of cross section of upper strata air distribution plate 11
For：Inclined linear from center to down either side, the spacing of upper strata air distribution plate 11 and lower floor's air distribution plate 9 is between 2-5cm.
It is evenly arranged with lower floor's igniting initial bed 10 and upper strata air distribution plate 11 and is evenly arranged with lower floor's air distribution plate 9
Upper strata igniting initial bed 12, the bed material particle of the upper strata igniting initial bed 12 are more than the bed material of lower floor's igniting initial bed 10
Grain.It is preferred that the bed material particle of lower floor igniting initial bed 10 is less than 4mm, and the upper strata is lighted a fire the bed material of initial bed 12
Grain is more than 4mm.
Heat smoke into isobaric air compartment 8 is blown into corresponding initial bed, recycle stream by the blast cap on corresponding air distribution plate
Before fluidized bed boiler igniting, first in the small igniting bed material of one layer of lower floor's air distribution plate upper berth particle, i.e. lower floor's igniting initial bed, Ran Hou
The bigger igniting bed material of one layer of upper strata air distribution plate upper berth particle, i.e. upper strata igniting initial bed, wherein, upper strata igniting initial bed is in two
The structure that side is low, centre is high, lower floor's igniting initial bed are mainly used in maintaining mainly as incendiary source at initial stage, upper strata igniting initial bed
Later stage bed temperature, both facilitated light a fire initial stage and avoided the occurrence of coking in bed, rapid-ignition can be achieved, and reduced the duration of ignition, avoid consuming
Take too many air quantity.
Further, it is preferable that the circulating fluidized bed combustor 13 is provided with temperature sensor (not shown), its
In, the air volume meter 7, thermocouple 6 and temperature sensor are connected with CPU, and the CPU controls oil feed pump 14.CPU passes through air volume meter
7th, the working condition of thermocouple 6 and temperature sensor real-time monitoring device, and can be according to the Numerical Control oil feed pump 14 of setting
Work, it is easy and effective, optimal ignition results can be reached.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure that bright specification and accompanying drawing content are made either equivalent flow conversion or to be directly or indirectly used in other related
Technical field, be included within the scope of the present invention.
Claims (6)
1. a kind of boiler hot flue gas igniter, including the oil storage tank being sequentially connected（16）, oil strainer（15）, oil feed pump
（14）, the oil storage tank（16）Pass through oil feed pump（14）With hot-blast stove（3）It is connected, the hot-blast stove（3）It is provided with manhole door（5）
And peep-hole（1）, it is characterised in that the hot-blast stove（3）Entrance is provided with arc ignition device（2）And oil burner（4）, it is described
Hot-blast stove（3）Outlet is provided with thermocouple（6）And hot-blast stove（3）Pass through pipeline and isobaric air compartment（8）It is connected, the pipeline is set
There is air volume meter（7）, the isobaric air compartment（8）Top is provided with circulating fluidized bed combustor（13）, the isobaric air compartment（8）With follow
Ring fluidized bed combustion chamber（13）Between be sequentially arranged lower floor's air distribution plate（9）With upper strata air distribution plate（11）, lower floor's air distribution plate
（9）For the tabular of level, the upper strata air distribution plate（11）With lower floor's air distribution plate（9）Clearance D from upper strata air distribution plate（11）'s
Two lateral centers are incremented by, lower floor's air distribution plate（9）On be evenly arranged with lower floor igniting initial bed（10）And upper strata air distribution plate
（11）On be evenly arranged with upper strata igniting initial bed（12）, the upper strata igniting initial bed（12）Bed material particle be more than lower floor's point
The ashes after a fire bed of material（10）Bed material particle, the circulating fluidized bed combustor（13）It is provided with temperature sensor.
A kind of 2. boiler hot flue gas igniter according to claim 1, it is characterised in that the air volume meter（7）, thermoelectricity
It is even（6）It is connected with temperature sensor with CPU, the CPU controls oil feed pump（14）.
A kind of 3. boiler hot flue gas igniter according to claim 1, it is characterised in that the upper strata air distribution plate（11）
With lower floor's air distribution plate（9）Spacing between 2-5cm.
A kind of 4. boiler hot flue gas igniter according to claim 1, it is characterised in that the oil feed pump（14）And heat
Wind furnace（3）Between be provided with hand valve.
A kind of 5. boiler hot flue gas igniter according to claim 3, it is characterised in that lower floor's igniting initial bed
（10）Bed material particle be less than 4mm.
A kind of 6. boiler hot flue gas igniter according to claim 5, it is characterised in that the upper strata igniting initial bed
（12）Bed material particle be more than 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610663810.4A CN106168377B (en) | 2016-08-15 | 2016-08-15 | A kind of boiler hot flue gas igniter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610663810.4A CN106168377B (en) | 2016-08-15 | 2016-08-15 | A kind of boiler hot flue gas igniter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106168377A CN106168377A (en) | 2016-11-30 |
| CN106168377B true CN106168377B (en) | 2018-02-02 |
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ID=58065790
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610663810.4A Active CN106168377B (en) | 2016-08-15 | 2016-08-15 | A kind of boiler hot flue gas igniter |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111495046B (en) * | 2020-04-24 | 2021-10-19 | 安徽晋煤中能化工股份有限公司 | Online cleaning device of low pressure fuel gas filter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103215A (en) * | 1986-05-01 | 1988-03-16 | 重庆大学 | Firing technique in the fluidized bed combustion boiler precombustion chamber bed |
| CN204114928U (en) * | 2014-08-29 | 2015-01-21 | 武汉凯迪电力工程有限公司 | A kind of heavy oil igniting of CFBB and combustion-supporting system |
| CN205957160U (en) * | 2016-08-15 | 2017-02-15 | 南京工程学院 | Hot flue gas ignition of boiler |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59109706A (en) * | 1982-12-15 | 1984-06-25 | Babcock Hitachi Kk | Fluidized-bed combustion furnace |
| US20080223267A1 (en) * | 2007-03-13 | 2008-09-18 | Alstom Technology Ltd | Direct sorbent preparation/feed apparatus and method for circulating fluidized bed boiler systems |
-
2016
- 2016-08-15 CN CN201610663810.4A patent/CN106168377B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86103215A (en) * | 1986-05-01 | 1988-03-16 | 重庆大学 | Firing technique in the fluidized bed combustion boiler precombustion chamber bed |
| CN204114928U (en) * | 2014-08-29 | 2015-01-21 | 武汉凯迪电力工程有限公司 | A kind of heavy oil igniting of CFBB and combustion-supporting system |
| CN205957160U (en) * | 2016-08-15 | 2017-02-15 | 南京工程学院 | Hot flue gas ignition of boiler |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106168377A (en) | 2016-11-30 |
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