CN203571786U - Multiple-adjusting type over fire air register - Google Patents
Multiple-adjusting type over fire air register Download PDFInfo
- Publication number
- CN203571786U CN203571786U CN201320658032.1U CN201320658032U CN203571786U CN 203571786 U CN203571786 U CN 203571786U CN 201320658032 U CN201320658032 U CN 201320658032U CN 203571786 U CN203571786 U CN 203571786U
- Authority
- CN
- China
- Prior art keywords
- air duct
- air
- guide rod
- vane
- guide vane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 238000002485 combustion reaction Methods 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 2
- 231100000719 pollutant Toxicity 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Abstract
The utility model discloses a multiple-adjusting type over fire air register which comprises an inner air duct, an outer air duct and axial rotating devices. Air inlets are formed in the inner air duct and the outer air duct, and the axial rotating devices are arranged at the tail end of the inner air duct and the tail end of the outer air duct. A swinging flow guide nozzle is formed in a duct outlet in the front end of the inner air duct, and a flow guide vane is arranged in the swinging flow guide nozzle. A rotating shaft of the swinging flow guide nozzle is fixed in the corresponding axial rotating device, and the swinging flow guide nozzle swings through a flow guide nozzle swinging rod. A rotating shaft of the flow guide vane is fixed on the swinging type flow guide nozzle, and the flow guide vane swings through a flow guide vane swing guide rod. A master adjusting air door which can move horizontally is arranged on the outer air duct, and the master adjusting air door is adjusted through a master air door guide rod. An eddy flow vane is arranged between the inner air duct and the outer air duct, and the eddy flow vane is adjusted through an eddy flow adjusting guide rod. The multiple-adjusting type over fire air register meets the demand for controlling generation of combustion pollutants NOx, reduces emission loss of substances which are not burned out, and improves the efficiency of a boiler.
Description
Technical field
The utility model relates to a kind of after-flame wind air register, relates in particular to a kind of after-flame of many modes for wall firing boiler wind air register, belongs to boiler combustion technology field.
Background technology
After-flame wind is a kind of major measure of falling low NOx drainage of extensive use on current station boiler and Industrial Boiler, major way be by burning required air according to a certain percentage a part from a distance, burner region top, send into burner hearth, form primary combustion zone and after-flame region, the popular after-flame wind that cries of this part wind.
Because primary combustion zone air quantity is less than natural fuel after-flame Air Quantity Required, the uncombusted things such as common flying dust carbon containing and CO are higher, how the uncombusted thing in after-flame region and air further mixed to after-flame, become the key of after-flame wind design.
At present, for wall firing boiler, after-flame wind air register mainly forms (also having some to be designed to three strands of wind) by two strands of wind, and these two strands of wind are mainly direct current wind or eddy flow wind, these wind all vertical water wall are sent into burner hearth, and this mode can exist some air distribution blind areas at furnace profile; And because every burner combustion state is inconsistent, burner hearth fuel mixes bad with air, causes uncombusted thing higher.
Along with improving constantly of environmental requirement in recent years, discharged nitrous oxides is controlled more and more stricter, yet, in order to control the discharge of nitrogen oxide, need to increase the ratio of after-flame wind, and the increasing uncombusted thing that will cause of the ratio of after-flame wind is restive, boiler efficiency also reduces.In order to control flying dust carbon containing and to improve boiler efficiency, the way conventionally adopting is that the oxygen amount of burner region is improved, and can affect so again the generation effect of NOx.
Therefore, in sum, existing after-flame wind air register needs to promote and improve in this respect.
Utility model content
The purpose of this utility model is: a kind of many modes after-flame wind air register is provided, make air-spray direction and boiler height direction and width send into burner hearth according to certain angle, the air in after-flame region is sent to the place of burner hearth anoxic, to burn required air reasonable layout at whole furnace profile, total blast volume and swirl strength are regulated simultaneously, solve air distribution blind area and fuel and mix bad technical problem with air, thereby can effectively solve above-mentioned problems of the prior art.
The purpose of this utility model is to realize by following technical proposals: a kind of many modes after-flame wind air register, comprise interior air duct, outer air duct and axial rotating device, on interior air duct and outer air duct, be provided with air inlet, axial rotating device is located at the tail end of inside and outside air duct, channel exit at interior air duct front end is provided with swinging type water conservancy diversion spout, in swinging type water conservancy diversion spout, be provided with guide vane, the rotating shaft of swinging type water conservancy diversion spout is fixed on axial rotating device, and the spout of swinging type water conservancy diversion spout swings by water conservancy diversion spout pendulum guide rod; The rotating shaft of guide vane is fixed on swinging type water conservancy diversion spout, and can by guide vane pendulum guide rod, swing by guide vane; Air duct is provided with the total air door of the adjusting that can move forward and backward outside, and this regulates total air door to regulate by total air door guide rod; Between interior air duct and outer air duct, be provided with swirl vane, described swirl vane regulates guide rod to regulate by eddy flow.
As a kind of optimal way, the exit of air duct is provided with for guiding the enlarging of air-flow outside.
As a kind of optimal way, the vertical or level of the rotating shaft of the rotating shaft of described guide vane and swinging type water conservancy diversion spout.
As further preferred embodiment, described guide vane is swinging type guide vane or fixed guide vane.
As a kind of optimal way, described total air door guide rod, water conservancy diversion spout pendulum guide rod, guide vane pendulum guide rod and eddy flow regulate guide rod all parallel with the axis of inside and outside air duct, and the tail end housing of the outer air duct of its end expenditure.
Compared with prior art, the beneficial effects of the utility model: many modes of the utility model after-flame wind air register, solve air distribution blind area, after-flame region and fuel and mix problem of poor with air, by multiple regulating measure, rationally air-supply, reach fuel and mix with the best of air, meet control combustion pollutant NOx and generate, reduce uncombusted thing emission loss simultaneously and improve boiler efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of many modes of the utility model after-flame wind air register.
In figure: air duct in 1-, the outer air duct of 2-, 3-regulates total air door, 4-swinging type water conservancy diversion spout, 5-guide vane, 6-is adjustable swirl vane axially, the total air door guide rod of 7-, 8-water conservancy diversion spout pendulum guide rod, 9-guide vane pendulum guide rod, 10-eddy flow regulates guide rod, 11-axial rotating device, 12-enlarging, 13-air inlet.
The specific embodiment
Below in conjunction with specific embodiment, the utility model is further described.
Disclosed all features in this description, or the step in disclosed all methods or process, except the speciality and/or step of mutual repulsion, all can combine by any way, unless narration especially, all can be replaced by other equivalences or the alternative features with similar object,, unless narration especially, an embodiment in a series of equivalences of each feature or similar characteristics.
As shown in Figure 1, many modes of the utility model after-flame wind air register comprises interior air duct 1, outer air duct 2 and axial rotating device 11, and the exit of air duct 2 is provided with for guiding the enlarging 12 of air-flow outside, for guiding air-flow, and aftercombustion air timely and reasonably.On interior air duct 1 and outer air duct 2, according to certain area ratio, air inlet 13 is rationally set, in order to air feed.Channel exit at interior air duct 1 front end is provided with swinging type water conservancy diversion spout 4, in swinging type water conservancy diversion spout 4, is provided with guide vane 5, and described guide vane 5 is swinging type guide vane or fixed guide vane; Vertical or the level of the rotating shaft of the rotating shaft of described guide vane 5 and swinging type water conservancy diversion spout 4.The rotating shaft of swinging type water conservancy diversion spout 4 is fixed on axial rotating device 11, and the spout of swinging type water conservancy diversion spout 4 swings by water conservancy diversion spout pendulum guide rod 8; The rotating shaft of guide vane 5 is fixed on swinging type water conservancy diversion spout 4, and can by guide vane pendulum guide rod 9, swing by guide vane 5; The angle that swings water conservancy diversion spout by guide rod forms guide functions with the angle that swings guide vane to air-flow, and air flow and water-cooling wall shape are formed an angle, and being formed on furnace height direction, width all can be according to the object of demand air distribution.Axial rotating device 11 is located at the tail end of inside and outside air duct, swinging type water conservancy diversion spout is connected with axial rotating device with swinging type guide vane, by rotating this device, swinging type water conservancy diversion spout and swinging type guide vane can rotate with whirligig, in conjunction with the water conservancy diversion direction of spout and blade, and then reach the object of multidirectional change airflow direction.Air duct 2 is provided with the total air door 3 of the adjusting that can move forward and backward outside, and this regulates total air door 3 to regulate by total air door guide rod 7; Change the incoming air area of air inlet, and then reach the object that regulates single after-flame wind air quantity.Between interior air duct 1 and outer air duct 2, be provided with axially adjustable swirl vane 6, described swirl vane 6 regulates guide rod 10 to regulate the position of swirl vane by eddy flow, changes swirl strength.Described total air door guide rod 7, water conservancy diversion spout pendulum guide rod 8, guide vane pendulum guide rod 9 and eddy flow regulate guide rod 10 all parallel with the axis of inside and outside air duct, and the tail end housing of the outer air duct 2 of its end expenditure.
By the above-mentioned guide rod in the utility model, carry out the intense adjustment to each governor motion, reach best fired state.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. the wind of mode after-flame more than kind air register, it is characterized in that: comprise interior air duct (1), outer air duct (2) and axial rotating device (11), on interior air duct (1) and outer air duct (2), be provided with air inlet (13), in axial rotating device (11) is located at, the tail end of outer air duct, channel exit at interior air duct (1) front end is provided with swinging type water conservancy diversion spout (4), in swinging type water conservancy diversion spout (4), be provided with guide vane (5), the rotating shaft of swinging type water conservancy diversion spout (4) is fixed on axial rotating device (11), and the spout of swinging type water conservancy diversion spout (4) swings by water conservancy diversion spout pendulum guide rod (8), it is upper that the rotating shaft of guide vane (5) is fixed on swinging type water conservancy diversion spout (4), and can by guide vane pendulum guide rod (9), swing by guide vane (5), air duct (2) is provided with the total air door of the adjusting that can move forward and backward (3) outside, and this regulates total air door (3) to regulate by total air door guide rod (7), between interior air duct (1) and outer air duct (2), be provided with swirl vane (6), described swirl vane (6) regulates guide rod (10) to regulate by eddy flow.
2. many modes after-flame wind air register as claimed in claim 1, is characterized in that: the exit of air duct (2) is provided with the enlarging (12) for guiding air-flow outside.
3. many modes after-flame wind air register as claimed in claim 1, is characterized in that: the vertical or level of the rotating shaft of the rotating shaft of described guide vane (5) and swinging type water conservancy diversion spout (4).
4. many modes after-flame wind air register as claimed in claim 3, is characterized in that: described guide vane (5) is swinging type guide vane or fixed guide vane.
5. many modes after-flame wind air register as claimed in claim 1, it is characterized in that: described total air door guide rod (7), water conservancy diversion spout pendulum guide rod (8), guide vane pendulum guide rod (9) and eddy flow regulate guide rod (10) all parallel with the axis of inside and outside air duct, and the tail end housing of its end outer air duct of expenditure (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320658032.1U CN203571786U (en) | 2013-10-24 | 2013-10-24 | Multiple-adjusting type over fire air register |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320658032.1U CN203571786U (en) | 2013-10-24 | 2013-10-24 | Multiple-adjusting type over fire air register |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203571786U true CN203571786U (en) | 2014-04-30 |
Family
ID=50539517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320658032.1U Expired - Lifetime CN203571786U (en) | 2013-10-24 | 2013-10-24 | Multiple-adjusting type over fire air register |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203571786U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123011A (en) * | 2016-07-25 | 2016-11-16 | 浙江浙能技术研究院有限公司 | A kind of adherent wind snout device with adjustable deflector and control method thereof |
| CN110260307A (en) * | 2019-06-10 | 2019-09-20 | 江苏蓝创环保科技有限公司 | A kind of online adjusting flame position burner |
-
2013
- 2013-10-24 CN CN201320658032.1U patent/CN203571786U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123011A (en) * | 2016-07-25 | 2016-11-16 | 浙江浙能技术研究院有限公司 | A kind of adherent wind snout device with adjustable deflector and control method thereof |
| CN110260307A (en) * | 2019-06-10 | 2019-09-20 | 江苏蓝创环保科技有限公司 | A kind of online adjusting flame position burner |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140430 |