CN204986984U - Change wall formula tangential firing boiler combustion ware of horizontal deflection angle - Google Patents
Change wall formula tangential firing boiler combustion ware of horizontal deflection angle Download PDFInfo
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- CN204986984U CN204986984U CN201520568586.1U CN201520568586U CN204986984U CN 204986984 U CN204986984 U CN 204986984U CN 201520568586 U CN201520568586 U CN 201520568586U CN 204986984 U CN204986984 U CN 204986984U
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- firing boiler
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Abstract
(B, ) change wall formula tangential firing boiler combustion ware of horizontal deflection angle. Present wall formula tangential firing boiler combustion ware no. 1, overgrate air parallel arrangement when making the furnace flame degree of filling good, also can make furnace combustion flame circle of contact diameter too big, and influence in the furnace and the afterbody is distributed by the heat between the hot side respectively, and it is on the low side to result in furnace to export gas temperature. A change wall formula tangential firing boiler combustion ware of horizontal deflection angle which constitutes and includes: furnace water -cooling wall (b) (b) 3 (b) (b), the furnace water -cooling wall install wind spout of a set of combustor (b) (b) 2 (b) (b) and a set of combustor overgrate air spout (b) (b) 1 (b) (b), a set of combustor overgrate air spout with the furnace water -cooling wall connect perpendicularly, wind spout of a set of combustor with the furnace water -cooling wall connect, wind spout of a set of combustor with a set of combustor overgrate air spout horizontal plane between the angle be (b) (b) 0-25 (b) (b) degree. The utility model is suitable for a wall formula circle of contact combustion system. (B, )
Description
technical field:
the utility model relates to a kind of wall-tangentially firing boiler burner changing X deflection angle.
background technology:
existing wall-tangentially firing boiler burner primary and secondary air is arranged in parallel, while making furnace flame degree of filling good, also stove combustion flame tangential circle diameter can be made excessive, affect the heat distribution in burner hearth and between each heating surface of afterbody, cause furnace outlet gas temperature on the low side, to such an extent as to operationally boiler reheater outlet steam temperature is on the low side compared with design load, affect unit cycle efficieny.
simultaneously because burner hearth flame burning tangential circle diameter is excessive, cause water-cooling wall regional area thermic load too high to such an extent as to the situation that coking, high temperature corrosion and water-cooling wall overtemperature etc. affect unit safety stable operation occurs.
utility model content:
the purpose of this utility model is to provide a kind of wall-tangentially firing boiler burner changing X deflection angle.
above-mentioned object is realized by following technical scheme:
a kind of wall-tangentially firing boiler burner changing X deflection angle, its composition comprises: furnace wall cooling, described furnace wall cooling is provided with one group of burner First air spout and one group of burner overfire air port, one group of described burner overfire air port is connected with described furnace wall cooling is vertical, one group of described burner First air spout is connected with described furnace wall cooling, and the angle between one group of described burner First air spout and described one group of burner overfire air port horizontal plane is 0 ~ 25 degree.
the wall-tangentially firing boiler burner of described change X deflection angle, one group of described burner First air spout, described one group of burner overfire air port and described furnace wall cooling are that alternating expression is arranged on described furnace wall cooling.
the wall-tangentially firing boiler burner of described change X deflection angle, described furnace wall cooling is boiler furnace border.
the beneficial effects of the utility model:
1. First air of the present utility model carries after coal dust enters burner hearth, through entrainmenting the heat absorption of the high-temperature flue gas convection current in burner hearth, in simultaneously stability burner hearth, the hyperthermia radiation heat of flue gas is rapidly heated to the ignition temperature needed for coal powder ignition, a large amount of oxygen consumed in First air and surrounding air after coal powder ignition, Secondary Air be mixed into the amount of oxygen provided needed for coal dust after burning in time.Primary and secondary air becomes tangential firing at freeze profile, and wall-tangential firing mode has good air stream turbulence mixing intensity, ensure that the oxygenating of coal dust in burner hearth and burns.By optimizing arrangement form between wall-tangential firing system primary air jet and Secondary Air jet, according to concrete ature of coal, other service condition and burner hearth geometrical structure parameter, by primary air jet to the suitable angle of burner hearth intrinsic deflection, conservative control primary and secondary air incorporation time and hybrid position, and then control stove combustion process, improve flame central position, and then improve flue gas temperature of hearth outlet, finally reach the object changing boiler reheater outlet steam temperature.
the utility model is by changing wall-tangentially firing boiler burner arrangement form, First air is deflected suitable angle to burner hearth center position, control hybrid position and the mixing rate of First air and Secondary Air in burner hearth, the combustion type of bellows chamber powder is become at whole freeze profile, remarkable change reheater outlet steam temperature, ensure that the combustion stability of breeze airflow simultaneously, optimize the performance indications of wall-tangentially firing boiler, decrease the too high and coking caused of water-cooling wall local heat load, high temperature corrosion and wall temperature overtemperature alarm situation, improve water-cooling wall service condition, improve unit operation stability.
the utility model, by controlling stove combustion process, changes flue gas temperature of hearth outlet, final control boiler reheater outlet steam temperature.Ensure the combustion stability of breeze airflow simultaneously, reduce atmosphere pollution NOx discharge, effectively alleviate the problem such as ash erosion and high temperature corrosion.
accompanying drawing illustrates:
accompanying drawing 1 is structural representation of the present utility model.
detailed description of the invention:
embodiment 1:
a kind of wall-tangentially firing boiler burner changing X deflection angle, its composition comprises: furnace wall cooling 3, described furnace wall cooling is provided with one group of burner First air spout 2 and one group of burner overfire air port 1, one group of described burner overfire air port is connected with described furnace wall cooling is vertical, one group of described burner First air spout is connected with described furnace wall cooling, and the angle between one group of described burner First air spout and described one group of burner overfire air port horizontal plane is 0 ~ 25 degree.
embodiment 2:
the wall-tangentially firing boiler burner of the change X deflection angle according to embodiment 1, one group of described burner First air spout, described one group of burner overfire air port and described furnace wall cooling are that alternating expression is arranged on described furnace wall cooling.
embodiment 3:
the wall-tangentially firing boiler burner of the change X deflection angle according to embodiment 1 or 2, described furnace wall cooling is boiler furnace border.
Claims (3)
1. one kind changes the wall-tangentially firing boiler burner of X deflection angle, its composition comprises: furnace wall cooling, it is characterized in that: described furnace wall cooling is provided with one group of burner First air spout and one group of burner overfire air port, one group of described burner overfire air port is connected with described furnace wall cooling is vertical, one group of described burner First air spout is connected with described furnace wall cooling, and the angle between one group of described burner First air spout and described one group of burner overfire air port horizontal plane is 0 ~ 25 degree.
2. the wall-tangentially firing boiler burner of change X deflection angle according to claim 1, is characterized in that: one group of described burner First air spout, described one group of burner overfire air port and described furnace wall cooling are that alternating expression is arranged on described furnace wall cooling.
3. the wall-tangentially firing boiler burner of change X deflection angle according to claim 1 and 2, is characterized in that: described furnace wall cooling is boiler furnace border.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520568586.1U CN204986984U (en) | 2015-07-31 | 2015-07-31 | Change wall formula tangential firing boiler combustion ware of horizontal deflection angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520568586.1U CN204986984U (en) | 2015-07-31 | 2015-07-31 | Change wall formula tangential firing boiler combustion ware of horizontal deflection angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204986984U true CN204986984U (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520568586.1U Active CN204986984U (en) | 2015-07-31 | 2015-07-31 | Change wall formula tangential firing boiler combustion ware of horizontal deflection angle |
Country Status (1)
| Country | Link |
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| CN (1) | CN204986984U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865188A (en) * | 2016-04-08 | 2016-08-17 | 上海理工大学 | Tangent circle gas inlet furnace smoke mixing chamber and lignite boiler comprising same |
| CN106918049A (en) * | 2017-05-05 | 2017-07-04 | 郑州大学 | Gas fired-boiler air stage feeding device |
-
2015
- 2015-07-31 CN CN201520568586.1U patent/CN204986984U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105865188A (en) * | 2016-04-08 | 2016-08-17 | 上海理工大学 | Tangent circle gas inlet furnace smoke mixing chamber and lignite boiler comprising same |
| CN105865188B (en) * | 2016-04-08 | 2019-01-01 | 上海理工大学 | Circle of contact air inlet furnace cigarette mixing chamber and the boiler using brown coal including it |
| CN106918049A (en) * | 2017-05-05 | 2017-07-04 | 郑州大学 | Gas fired-boiler air stage feeding device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |