CN203517772U - Under-bed igniter of novel circulating fluidized bed boiler - Google Patents
Under-bed igniter of novel circulating fluidized bed boiler Download PDFInfo
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- CN203517772U CN203517772U CN201320669134.3U CN201320669134U CN203517772U CN 203517772 U CN203517772 U CN 203517772U CN 201320669134 U CN201320669134 U CN 201320669134U CN 203517772 U CN203517772 U CN 203517772U
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- igniter
- barrel
- igniter barrel
- inner core
- urceolus
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Abstract
The utility model discloses an under-bed igniter of a novel circulating fluidized bed boiler. The under-bed igniter comprises an outer igniter barrel and an inner igniter barrel, wherein the outer igniter barrel is fixed on a furnace wall of an air chamber, the inner igniter barrel is lengthened and extends into the air chamber, and eight support plates are uniformly arranged between the outer igniter barrel and the inner igniter barrel, close to one end of the air chamber, and are uniformly distributed circularly. According to the under-bed igniter of the novel circulating fluidized bed boiler, trumpet type steel plates between the outer igniter barrel and the inner igniter barrel are totally cut, outlet resistance of cooling air between the outer igniter barrel and the inner igniter barrel is reduced, the inner igniter barrel is lengthened by 350mm, can smoothly guide hot flue gas into the air chamber and prevent high-temperature flue gas vortex formed at a flue gas outlet from burning the igniter; eight support plates are uniformly arranged between the end parts of the outer igniter barrel and the inner igniter barrel additionally in the igniter to prevent the inner igniter barrel from sinking; the outer igniter barrel is made of a heat-resisting steel plate and can be prevented from being carbonized and burnt due to high temperature, and the normal operation of the circulating fluidized bed boiler is ensured.
Description
Technical field:
The utility model relates to a kind of igniter, particularly relates to a kind of circulating fluid bed boiler ignition under bed device, belongs to CFBB processing technique field.
Background technology:
Conventionally CFBB adopts ignition under bed device to light a fire, igniter mainly contain air distribution device, oily igniter (oil gun and steady combustion cover), combustion chamber, inside and outside cylinder and between cooling air channel and the composition such as bellows interface, igniter is arranged in water cooled wind chamber rear portion below air distribution plate, and air distribution device is connected with bellows.Igniter has a circular fire hole on one side, and there is a circular glass peep hole at rear portion, and there is a steady combustion cover in chamber front end portion, oil gun is in steady combustion cover, one time wind is two strands in the anterior air distribution device punishment of igniter, and one is for grease gun igniting, and another thigh is used as combustion-supporting and cooling.
In prior art (referring to Fig. 1), igniter inner core 2 length are shorter, the end of igniter inner core 2 with igniter urceolus 1 near being connected by the circular transition of steel plate ring 3 between one end of air compartment 5, form horn mouth shape, offer several cooling air outlets 7 on trumpet type steel plate ring, the cooling air passage that this structure forms is in fluidized-bed combustion boiler ignition process, gas-flow resistance is large, cooling effect is poor, is prone to igniter urceolus 1 and burns out the phenomenon of leaking out, and makes ignition of the boiler failure.After blowing out, check, find igniter combustion chamber around castable be bulk and peel off, that burn cooling air is tubaeform air outlet end is rotten, carbonization and distortion serious, igniter Inner Wall of Combustion Chamber (before Oil gun head) is long-pending has expired oil coke carbon, has had a strong impact on the normal ignition operation of CFBB.
Utility model content:
Technical problem to be solved in the utility model is: a kind of circulating fluid bed boiler ignition under bed device is provided, and this structure makes that hot exhanst gas outlet resistance is little, airflow smooth, can effectively prevent the phenomenon that igniter urceolus and outlet are burned.
The utility model is that the technical scheme that technical solution problem is taked is:
A kind of circulating fluid bed boiler ignition under bed device, comprise igniter urceolus and igniter inner core, described igniter urceolus is fixed on air compartment furnace wall, described igniter inner core lengthens and extends to air compartment inside, one end near air compartment between described igniter urceolus and igniter inner core is evenly provided with eight gripper shoes, described eight rounded being uniformly distributed of gripper shoe.
Described igniter urceolus consists of heat-resisting steel sheet and plate; Described igniter inner core lengthens extension and is rolled into by heat-resisting steel sheet and plate.
Described igniter inner core development length is 350mm.
The utility model, by the structure of igniter has been carried out to substantive transformation, all slices off the junction steel plate (being trumpet type steel plate ring) between the inside and outside cylinder of igniter, reduces the resistance to flow output of cooling air between the inside and outside cylinder of igniter; The cylinder rolling into heat-resisting steel sheet and plate lengthens 350mm inner core, smoothly hot flue gas is imported to air compartment inner, avoids forming high-temperature flue gas whirlpool at smoke outlet and burns out igniter; Sagging in order to prevent igniter inner core, end between the inside and outside cylinder of igniter is uniform adds eight gripper shoes; The urceolus of igniter adopts heat-resisting steel sheet and plate to process, and the phenomenon that can effectively avoid igniter urceolus to be subject to carbonization after high temperature, to burn out, guarantees the normal ignition operation of CFBB.
The utility model is simple in structure, cheap, and practicality is stronger, has good economic results in society.
Accompanying drawing explanation:
Fig. 1 is the structural representation of igniter in prior art;
Fig. 2 is structural representation of the present utility model;
Fig. 3 be in Fig. 2 B to partial structurtes schematic diagram.
In figure, 1---igniter urceolus, 2---igniter inner core, 3---trumpet type steel plate ring, 4---air compartment furnace wall, 5---air compartment, 6---gripper shoe, 7---cooling air outlet.
The specific embodiment:
Below in conjunction with accompanying drawing, the utility model is further described:
Referring to Fig. 2 and Fig. 3, a New Cycle Fluidized Bed Boiler ignition under bed device, comprises igniter urceolus 1 and igniter inner core 2, and igniter urceolus 1 is fixed on air compartment furnace wall 4, igniter inner core 2 lengthens and extends to air compartment 5 inside, and igniter inner core 2 development lengths are 350mm; One end near air compartment between igniter urceolus 1 and igniter inner core 2 is evenly provided with 6, eight rounded being uniformly distributed of gripper shoe 6 of eight gripper shoes.Wherein: igniter urceolus 1 consists of heat-resisting steel sheet and plate, igniter inner core 2 lengthening extensions are rolled into by heat-resisting steel sheet and plate.
The utility model, by the structure of igniter has been carried out to substantive transformation, is trumpet type steel plate ring the junction steel plate 3(between the inside and outside cylinder of igniter) all slice off, reduce the resistance to flow output of cooling air between the inside and outside cylinder of igniter; The cylinder rolling into heat resisting steel lengthens 350mm inner core, smoothly hot flue gas is imported to air compartment inner, avoids forming high-temperature flue gas whirlpool at smoke outlet and burns out igniter; Sagging in order to prevent igniter inner core 2, end between the inside and outside cylinder of igniter is uniform adds eight gripper shoes 6; Igniter urceolus 1 adopts heat-resisting steel sheet and plate to process, and the phenomenon that can effectively avoid igniter urceolus 1 to be subject to carbonization after high temperature, to burn out, guarantees the normal operation of CFBB.
Claims (3)
1. a circulating fluid bed boiler ignition under bed device, comprise igniter urceolus (1) and igniter inner core (2), described igniter urceolus (1) is fixed on air compartment furnace wall (4), it is characterized in that: described igniter inner core (2) lengthens and extends to air compartment (5) inside, one end near air compartment between described igniter urceolus (1) and igniter inner core (2) is evenly provided with eight gripper shoes (6), rounded being uniformly distributed of described eight gripper shoes (6).
2. circulating fluid bed boiler ignition under bed device according to claim 1, is characterized in that: described igniter urceolus (1) consists of heat-resisting steel sheet and plate; Described igniter inner core (2) lengthens extension and is rolled into by heat-resisting steel sheet and plate.
3. circulating fluid bed boiler ignition under bed device according to claim 1, is characterized in that: described igniter inner core (2) development length is 350mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320669134.3U CN203517772U (en) | 2013-10-29 | 2013-10-29 | Under-bed igniter of novel circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320669134.3U CN203517772U (en) | 2013-10-29 | 2013-10-29 | Under-bed igniter of novel circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203517772U true CN203517772U (en) | 2014-04-02 |
Family
ID=50376701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320669134.3U Expired - Fee Related CN203517772U (en) | 2013-10-29 | 2013-10-29 | Under-bed igniter of novel circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203517772U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791779A (en) * | 2015-04-16 | 2015-07-22 | 无锡锡能锅炉有限公司 | Ignition-under-bed combustion device with air cooling structure for circulating fluidized bed boiler |
-
2013
- 2013-10-29 CN CN201320669134.3U patent/CN203517772U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791779A (en) * | 2015-04-16 | 2015-07-22 | 无锡锡能锅炉有限公司 | Ignition-under-bed combustion device with air cooling structure 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20141029 |
|
| EXPY | Termination of patent right or utility model |