CN203147802U - Adjustable anti-coking air system of W boiler wing wall - Google Patents
Adjustable anti-coking air system of W boiler wing wall Download PDFInfo
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- CN203147802U CN203147802U CN 201320108250 CN201320108250U CN203147802U CN 203147802 U CN203147802 U CN 203147802U CN 201320108250 CN201320108250 CN 201320108250 CN 201320108250 U CN201320108250 U CN 201320108250U CN 203147802 U CN203147802 U CN 203147802U
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- aileron
- coking
- boiler
- cooling wall
- water
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Abstract
The utility model discloses an adjustable anti-coking air system of a W boiler wing wall. The adjustable anti-coking air system of the W boiler wing wall comprises a wing wall water wall, a secondary air bellow is connected to the upper portion of the wing wall water wall, a first air outlet through which stationary type ant-coking air can be led in is horizontally arranged in the height direction of the wing wall water wall, a second air outlet which is perpendicular to the wing wall water wall and is capable of adjusting the air quantity of the anti-coking air is arranged in the horizontal direction of the wing wall water wall, and a third air outlet through which the stationary type ant-coking air can be led in is arranged in a zone above an arch at the corner of the wing wall water wall. By means of the adjustable anti-coking air system of the W boiler wing wall, the problem of W boiler coking can be solved, the anti-coking air system is provided with an adjustment device, therefore, when the adjustable anti-coking air system of the W boiler wing wall is operated, the air quantity of the anti-coking air is adjusted according to the actual situation of a boiler, a good air dynamic field and good steam temperature characteristics are maintained in the boiler, and the boiler is guaranteed to work safely, stably and effectively.
Description
Technical field
The utility model relates to the anti-scorch wind system of a kind of adjustable W stove aileron, relates in particular to a kind of W of being applicable to stove, by regulating anti-scorch wind system in the aileron setting, takes into account uniformity and the controllability of steam temperature when preventing the aileron coking.
Background technology
The burner hearth of W type flame combustion boiler is divided into upper and lower two parts, lower hearth is the combustion chamber, upper furnace is the secondary furnace of aileron water-cooling wall component, aileron water-cooling wall top connects toward the interior secondary air box of ventilating of burner hearth, the forward and backward wall of combustion chamber inwardly is shrunk to chimney arch, vault is arranged burner, and primary and secondary air sprays into the combustion chamber vertically downward, and breeze airflow catches fire, and the back is downward stretches; Along with the development of burning, pulverized coal particle lightens, and speed slows down, and does half-turn at wind snout number meter flame of distance and upwards flows; Whole burning interior flame is " W " shape, so be referred to as W type flame combustion boiler.
W type flame combustion boiler abbreviates the W stove again as, is that a kind of specialized designs is come the type of furnace for burning low volatile coal.In order to guarantee catching fire and steady combustion of the special coal of this class, often need to choose higher thermic load, particularly burner region thermic load far above the boiler that adopts other combustion system; Therefore, for a long time, the burner hearth coking of W stove, especially the problem paid close attention to when becoming safe operation of power plant of aileron position coking, coking influences efficiency of combustion easily, simultaneously the coking piece drops, and water screen tube that can hit below once had power plant to take place that bulk collapses Jiao and the accident that causes the water screen tube booster.
The utility model content
The purpose of this utility model is: provide a kind of adjustable W stove aileron anti-scorch wind system, anti-scorch wind system is set the position of easy coking at the W stove, this system has adjusting device simultaneously, can regulate anti-scorch air quantity according to the actual conditions of boiler when making operation, in order to avoid anti-scorch air-dry aerodynamic field of disturbing in the stove, cause the negative effect of steam temperature deviation, thereby thoroughly solve the technical problem of W stove aileron coking, thereby can effectively solve above-mentioned problems of the prior art.
The purpose of this utility model is to realize by following technical proposals: the anti-scorch wind system of a kind of adjustable W stove aileron, comprise the aileron water-cooling wall, aileron water-cooling wall top connects secondary air box, be horizontally disposed with an exhaust outlet that can feed fixed anti-scorch wind in aileron water-cooling wall short transverse, in aileron water-cooling wall horizontal direction No. two exhaust outlets of and adjustable anti-scorch wind air quantity size vertical with the aileron water-cooling wall are set, regional setting can feed No. three exhaust outlets of fixed anti-scorch wind on the arch of corner on the aileron water-cooling wall.
As a kind of optimal way, a described exhaust outlet, No. two exhaust outlets all link to each other with the secondary air box that is positioned at aileron water-cooling wall top with No. three exhaust outlets.
As further preferred embodiment, a described exhaust outlet is set to three floor, arranges at interval on aileron water-cooling wall short transverse.
As further preferred embodiment, described No. two exhaust outlets are an external pulling type water-cooling wall bend pipe.
As further preferred embodiment, described No. three exhaust outlets are four, be arranged at four corners of aileron respectively, and correspondence are provided with anti-scorch wind box.
Compared with prior art, the beneficial effects of the utility model: the anti-scorch wind system of the adjustable W stove of the utility model aileron, can solve the problem of W stove aileron coking, this system has adjusting device simultaneously, can regulate anti-scorch air quantity according to the actual conditions of boiler when making operation, keep good aerodynamic field and steam temperature characteristic in the stove, guarantee the boiler safety stable and high effective operation.
Description of drawings
Fig. 1 is the layout schematic diagram of the anti-scorch wind system of the utility model adjustable W stove aileron;
Fig. 2 is the air port schematic diagram of the anti-scorch wind system of the utility model adjustable W stove aileron;
Fig. 3 is the schematic diagram of the anti-scorch wind box in the adjustable W stove of the utility model aileron anti-scorch wind system bight;
Fig. 4 is the C-C generalized section among Fig. 3.
Among the figure: 1-aileron water-cooling wall, exhaust outlet of 2-, No. two exhaust outlets of 3-, No. three exhaust outlets of 4-, the anti-scorch wind box of 5-.
The specific embodiment
Below in conjunction with specific embodiment the utility model is further described.
Disclosed all features in this specification, or the step in disclosed all methods or the process, except the speciality and/or step of mutual repulsion, all can make up by any way, unless special narration all can be replaced by other equivalences or the alternative features with similar purpose, namely, unless special narration, an embodiment in a series of equivalences of each feature or the similar characteristics.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the anti-scorch wind system of the adjustable W stove of the utility model aileron, it comprises aileron water-cooling wall 1, aileron water-cooling wall 1 top connects the secondary air box (not shown), be horizontally disposed with an exhaust outlet 2 that can feed fixed anti-scorch wind in aileron water-cooling wall 1 short transverse, No. two exhaust outlets 3 of and adjustable anti-scorch wind air quantity size vertical with the aileron water-cooling wall in the 1 horizontal direction setting of aileron water-cooling wall, regional setting can feed No. three exhaust outlets 4 of fixed anti-scorch wind on the arch of corner on the aileron water-cooling wall 1.A described exhaust outlet 2, No. two exhaust outlets 3 all link to each other with the secondary air box that is positioned at aileron water-cooling wall 1 top with No. three exhaust outlets 4, need not to increase new air channel.
Be horizontally disposed with an exhaust outlet 2 that can feed fixed anti-scorch wind in aileron water-cooling wall 1 short transverse, from an exhaust outlet, feed fixed anti-scorch wind, and a described exhaust outlet 2 be set to three floor, on aileron water-cooling wall 1 short transverse, arrange at interval.Several exhaust outlets that the utility model plan is accelerated and do not waited in the differing heights direction of aileron water-cooling wall, be intended to by suitably highly increasing an amount of anti-scorch wind, be used for extension and the development of the coking of blocking-up water-cooling wall short transverse, avoid the generation of large-area coking phenomenon, stop dropping of bulk coke button and the security incident that causes.Because air quantity is less herein, the stove internal combustion is not had to disturb substantially, so adopt fixed structure.
No. two exhaust outlets 3 of and adjustable anti-scorch wind air quantity size vertical with the aileron water-cooling wall in the 1 horizontal direction setting of aileron water-cooling wall, described No. two exhaust outlets 3 are an external pulling type water-cooling wall bend pipe, can economical with materials; Feed adjustable anti-scorch wind from No. two exhaust outlets, this anti-scorch wind can be realized the adjusting of air quantity size by a volume adjusting apparatus.The utility model is intended at aileron water-cooling wall middle part, increase anti-scorch air port along whole aileron short transverse, the secondary wind in its principle and main burner zone is basic identical, is intended to by air curtain that long and narrow air port forms, and the coking that stops the thermic load upper zone to form is extended to the side wall direction.Herein anti-scorch wind to send into anti-scorch effect obvious, air quantity is bigger, as not in addition adjusting can have influence on the combustion position in primary zone, and directly cause the deviation of outlet steam temperature, therefore adopt the adjustment type structure.
Regional setting can feed No. three exhaust outlets 4 of fixed anti-scorch wind on the arch of corner on the aileron water-cooling wall 1, and described No. three exhaust outlets 4 are four, be arranged at four corners of aileron respectively, and correspondence is provided with anti-scorch wind box 5; This bight arch is gone up the zone and is fed fixed anti-scorch wind by No. three exhaust outlets.Zone on arch for preventing bight aileron water-cooling wall generation coking, is introduced part secondary wind and is sent into burner hearth as the anti-scorch wind of arch upper corner from the bellows of top, prevent that near bight, arch from coking taking place.
The utility model can solve the problem of W stove aileron coking, this system has adjusting device simultaneously, can regulate anti-scorch air quantity according to the actual conditions of boiler when making operation, keep good aerodynamic field and steam temperature characteristic in the stove, guarantee the boiler safety stable and high effective operation.
Concrete workflow of the present utility model is as follows:
1, the aileron short transverse increases fixed anti-scorch wind:
Several exhaust outlets that the utility model plan is accelerated and do not waited in the differing heights direction of aileron water-cooling wall, be intended to by suitably highly increasing an amount of anti-scorch wind, be used for extension and the development of the coking of blocking-up water-cooling wall short transverse, avoid the generation of large-area coking phenomenon, stop dropping of bulk coke button and the security incident that causes; Because air quantity is less herein, the stove internal combustion is not had to disturb substantially, so adopt fixed structure.
2, the aileron horizontal direction increases adjustable anti-scorch wind:
The utility model is intended at aileron water-cooling wall middle part, increase anti-scorch air port along whole aileron short transverse, the secondary wind in its principle and main burner zone is basic identical, is intended to by air curtain that long and narrow air port forms, and the coking that stops the thermic load upper zone to form is extended to the side wall direction.Herein anti-scorch wind to send into anti-scorch effect obvious, air quantity is bigger, as not in addition adjusting can have influence on the combustion position in primary zone, and directly cause the deviation of outlet steam temperature, therefore need to adopt the adjustment type structure.
3, the bight arch is gone up the zone and is adopted fixed anti-scorch wind:
Zone on arch for preventing bight aileron water-cooling wall generation coking, is introduced part secondary wind and is sent into burner hearth as the anti-scorch wind of arch upper corner from the bellows of top, prevent that near bight, arch from coking taking place.
4, all anti-scorch wind are all taken from secondary air box, need not to increase new air channel.
Specific embodiment:
On certain 600MW subcritical " W " stove, carried out following boiler improvement by foregoing description:
1. the aileron short transverse of four jiaos in burner hearth increases by 3 layers of fixed anti-scorch wind;
2. the aileron horizontal direction of four jiaos in burner hearth increases anti-scorch wind by an external pulling type water-cooling wall bend pipe; Corresponding adjusting device is set simultaneously, and the adjusting rod in this adjusting device passes bellows and heat-insulation layer, can operate easily on four jiaos platform.
3. the bight of four jiaos in burner hearth arch is gone up the zone and is adopted fixed anti-scorch wind, and 4 anti-scorch wind boxes are set.
Substantially solved the problem of boiler aileron coking, the present security of operation of boiler is stable.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. anti-scorch wind system of adjustable W stove aileron, comprise aileron water-cooling wall (1), aileron water-cooling wall (1) top connects secondary air box, it is characterized in that: be horizontally disposed with an exhaust outlet (2) that can feed fixed anti-scorch wind in aileron water-cooling wall (1) short transverse, No. two exhaust outlets (3) of and adjustable anti-scorch wind air quantity size vertical with the aileron water-cooling wall in aileron water-cooling wall (1) horizontal direction setting are gone up No. three exhaust outlets (4) that regional setting on the arch of corner can feed fixed anti-scorch wind at aileron water-cooling wall (1).
2. the anti-scorch wind system of adjustable W stove aileron as claimed in claim 1, it is characterized in that: a described exhaust outlet (2), No. two exhaust outlets (3) and No. three exhaust outlets (4) all link to each other with the secondary air box that is positioned at aileron water-cooling wall (1) top.
3. the anti-scorch wind system of adjustable W stove aileron as claimed in claim 2, it is characterized in that: a described exhaust outlet (2) is set to three floor, arranges at interval on aileron water-cooling wall (1) short transverse.
4. the anti-scorch wind system of adjustable W stove aileron as claimed in claim 2, it is characterized in that: described No. two exhaust outlets (3) are an external pulling type water-cooling wall bend pipe.
5. the anti-scorch wind system of adjustable W stove aileron as claimed in claim 2, it is characterized in that: described No. three exhaust outlets (4) are four, be arranged at four corners of aileron respectively, and correspondence are provided with anti-scorch wind box (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320108250 CN203147802U (en) | 2013-03-11 | 2013-03-11 | Adjustable anti-coking air system of W boiler wing wall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320108250 CN203147802U (en) | 2013-03-11 | 2013-03-11 | Adjustable anti-coking air system of W boiler wing wall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203147802U true CN203147802U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320108250 Expired - Lifetime CN203147802U (en) | 2013-03-11 | 2013-03-11 | Adjustable anti-coking air system of W boiler wing wall |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912887A (en) * | 2014-03-20 | 2014-07-09 | 华中科技大学 | Method and device for preventing thermal-power boiler from quick coking and ash deposition |
| CN107327837A (en) * | 2017-07-24 | 2017-11-07 | 无锡华光锅炉股份有限公司 | The easy coking area of main burner solves coking structure |
| CN108253446A (en) * | 2017-12-01 | 2018-07-06 | 华中科技大学 | A kind of boiler furnace structure of flow-guiding type high temperature corrosion resistance anti-coking |
| CN109945167A (en) * | 2019-03-11 | 2019-06-28 | 哈尔滨工业大学 | A kind of front wall, the asymmetrical W flame boiler of rear wall Secondary Air |
-
2013
- 2013-03-11 CN CN 201320108250 patent/CN203147802U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103912887A (en) * | 2014-03-20 | 2014-07-09 | 华中科技大学 | Method and device for preventing thermal-power boiler from quick coking and ash deposition |
| CN107327837A (en) * | 2017-07-24 | 2017-11-07 | 无锡华光锅炉股份有限公司 | The easy coking area of main burner solves coking structure |
| CN108253446A (en) * | 2017-12-01 | 2018-07-06 | 华中科技大学 | A kind of boiler furnace structure of flow-guiding type high temperature corrosion resistance anti-coking |
| CN109945167A (en) * | 2019-03-11 | 2019-06-28 | 哈尔滨工业大学 | A kind of front wall, the asymmetrical W flame boiler of rear wall Secondary Air |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |
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| CX01 | Expiry of patent term |