CN204276200U - With the denitration spray gun of cool air hose - Google Patents
With the denitration spray gun of cool air hose Download PDFInfo
- Publication number
- CN204276200U CN204276200U CN201420758441.3U CN201420758441U CN204276200U CN 204276200 U CN204276200 U CN 204276200U CN 201420758441 U CN201420758441 U CN 201420758441U CN 204276200 U CN204276200 U CN 204276200U
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- pipe
- built
- cool air
- air hose
- airduct
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Abstract
The utility model discloses a kind of denitration spray gun with cool air hose, comprise ammonia water pipe sheathed successively from inside to outside, airduct, cool air hose, sheath, built-in pipe; The top of the THE NEST STRUCTURE of ammonia water pipe and airduct is provided with nozzle base, and nozzle is arranged on nozzle base; The afterbody of the THE NEST STRUCTURE of ammonia water pipe and airduct is provided with turbulator, and turbulator is provided with ammonia inlet and compressed air inlet, and it is inner that ammonia inlet connects ammonia water pipe, and cavity between airduct and ammonia water pipe is connected in compressed air inlet; Sheath is placed on cool air hose top; Cool air hose is provided with the second cooling air inlet; Built-in pipe embeds and is arranged on walling of flue, and built-in pipe is provided with the first cooling air inlet; Cool air hose afterbody is provided with sealing device, and sealing device is tightly placed on airduct.The utility model carries cooling device, and than prior art denitration spray gun closer to flue gas center, denitration efficiency is higher.
Description
Technical field
The utility model relates to denitrating flue gas field, particularly relates to a kind of denitration spray gun.
Background technology
Remove the process of nitrogen oxide in combustion product gases, antipollution importance, to have been carried as worldwide problem out shrilly.In the SNCR denitration technique extensively adopted at present, denitration spray gun is atomized into the fine droplet of less than 100 μm ammonia spirit, be sprayed onto equably in flue gas (kiln gas in such as cement plant or the boiler smoke of steam power plant), so with NO, the NO in flue gas
2deng nitrogen oxide generation reduction reaction, generate nitrogen and water, to reduce the content of nitrogen oxides in effluent, and then the discharge of flue gas is reached or lower than the discharge standard of national regulation.
Denitration spray gun sprays into a little more better close to flue gas center denitration effect, but because inner flue gas of the stove temperature is very high, especially the local temperature close to flue gas center can reach more than 1000 DEG C, and must ensure that denitrfying agent and flue gas have the reaction time of more than 0.5 second, just can make ammonia solution and the flue gas good mixing of ejection.The tolerable temperature of the denitration spray gun in current technology below 900 DEG C, therefore can only avoid flame, is arranged in the lower slightly environment of temperature near walling of flue.
Summary of the invention
The utility model, for the deficiency existed in background technology, provides a kind of denitration spray gun with cool air hose, so that the nearly flue center of spy that denitration spray gun is more deep.
The utility model comprises nozzle, nozzle base, ammonia water pipe, airduct, cool air hose, sheath, built-in pipe, the first cooling air inlet, built-in pipe flange, air duct flange, the second cooling air inlet, sealing device, turbulator, ammonia inlet, compressed air inlet.Built-in pipe embeds and is arranged on walling of flue, and the built-in pipe tail end stretched out outside walling of flue is equipped with built-in pipe flange, and built-in pipe is provided with the first cooling air inlet; Ammonia water pipe, airduct, cool air hose, sheath, built-in pipe are sheathed successively from inside to outside; Cool air hose is equipped with air duct flange, and air duct flange and built-in pipe flange are bolted; The top of the THE NEST STRUCTURE of ammonia water pipe and airduct is provided with nozzle base, and nozzle is arranged on nozzle base; The afterbody of the THE NEST STRUCTURE of ammonia water pipe and airduct is provided with turbulator, and turbulator is provided with ammonia inlet and compressed air inlet, and it is inner that ammonia inlet connects ammonia water pipe, and cavity between airduct and ammonia water pipe is connected in compressed air inlet; Sheath is placed on cool air hose top; Cool air hose is provided with the second cooling air inlet; Cool air hose afterbody is provided with sealing device, and sealing device is tightly placed on airduct.
Nozzle is 15mm ~ 30mm from cool air hose top distance; Lance ejection angle is 10 ° ~ 120 °, and the atomized particle size of nozzle is 20 ~ 200 μm.
The utility model carries cooling device, and can stretch into walling of flue 16 length range can reach 0 ~ 1500mm, and than prior art denitration spray gun closer to flue gas center, denitration efficiency is higher.And because sheath protection, decrease in flue gas and be entrained with a large amount of dust and quartz sand particle washing away this device, the utility model is fewer than prior art wearing and tearing, long service life.
Accompanying drawing explanation
Fig. 1 is semi-section structural representation of the present utility model.
Detailed description of the invention
In order to further illustrate structure of the present invention, be described further below in conjunction with accompanying drawing.
As shown in the figure: the utility model comprises nozzle 1, nozzle base 2, ammonia water pipe 3, airduct 4, cool air hose 5, sheath 6, built-in pipe 7, first cooling air inlet 8, built-in pipe flange 9, air duct flange 10, second cooling air inlet 11, sealing device 12, turbulator 13, ammonia inlet 14, compressed air inlet 15.On walling of flue 16, built-in pipe 7 is imbedded in perforate, and built-in pipe 7 tail end stretched out outside walling of flue 16 is equipped with built-in pipe flange 9, and built-in pipe 7 is provided with the first cooling air inlet 8; Ammonia water pipe 3, airduct 4, cool air hose 5, sheath 6, built-in pipe 7 are sheathed successively from inside to outside; Cool air hose 5 is equipped with air duct flange 10, air duct flange 10 and built-in pipe flange 9 are bolted.The top of the THE NEST STRUCTURE of ammonia water pipe 3 and airduct 4 is provided with nozzle base 2, and nozzle 1 is arranged on nozzle base 2; The afterbody of the THE NEST STRUCTURE of ammonia water pipe 3 and airduct 4 is provided with turbulator 13, and turbulator 13 is provided with ammonia inlet 14 and compressed air inlet 15, and it is inner that ammonia inlet 14 connects ammonia water pipe 3, and cavity between airduct 4 and ammonia water pipe 3 is connected in compressed air inlet 15.Sheath 6 is carborundum tube, is placed on cool air hose 5 top, is not entrained with the sweep of gases of a large amount of dust and quartz sand particle, and then can slows down the wearing and tearing to denitration spray gun for protecting shower nozzle in flue gas, the final service life extending denitration spray gun.Cool air hose 5 is provided with the second cooling air inlet 11, when the second cooling air inlet 11 and the first cooling air inlet 8 access cooling air simultaneously, can ensure to be in less than 800 DEG C temperature in cool air hose 5, for nozzle 1 provides the working environment of a low-temperature safety.Cool air hose 5 afterbody is provided with sealing device 12, and sealing device 12 is tightly placed on airduct 4.
Above-mentioned nozzle is 15mm ~ 30mm from cool air hose top distance; Lance ejection angle is 10 ° ~ 120 °, and the atomized particle size of ejection is 20 ~ 200 μm.
Finally, it is also to be noted that what enumerate above is only a specific embodiment of the present utility model.Obviously, the utility model is not limited to above embodiment, can also have many distortion.All distortion that those of ordinary skill in the art can directly derive from content disclosed in the utility model or associate, all should think protection domain of the present utility model.
Claims (2)
1. be with the denitration spray gun of cool air hose, comprise nozzle (1), nozzle base (2), ammonia water pipe (3), airduct (4), cool air hose (5), sheath (6), built-in pipe (7), first cooling air inlet (8), built-in pipe flange (9), air duct flange (10), second cooling air inlet (11), sealing device (12), turbulator (13), ammonia inlet (14), compressed air inlet (15), it is characterized in that: built-in pipe (7) embeds and is arranged on walling of flue (16), built-in pipe (7) stretches out walling of flue (16) tail end outward and built-in pipe flange (9) is housed, built-in pipe (7) is provided with the first cooling air inlet (8), ammonia water pipe (3), airduct (4), cool air hose (5), sheath (6), built-in pipe (7) are sheathed successively from inside to outside, cool air hose (5) is equipped with air duct flange (10), air duct flange (10) and built-in pipe flange (9) are bolted, the top of the THE NEST STRUCTURE of ammonia water pipe (3) and airduct (4) is provided with nozzle base (2), and nozzle (1) is arranged on nozzle base (2), the afterbody of the THE NEST STRUCTURE of ammonia water pipe (3) and airduct (4) is provided with turbulator (13), turbulator (13) is provided with ammonia inlet (14) and compressed air inlet (15), it is inner that ammonia inlet (14) connects ammonia water pipe (3), and compressed air inlet (15) connect cavity between airduct (4) and ammonia water pipe (3), sheath (6) is placed on cool air hose (5) top, cool air hose (5) is provided with the second cooling air inlet (11), cool air hose (5) afterbody is provided with sealing device (12), and sealing device (12) is tightly placed on airduct (4).
2. denitration spray gun according to claim 1, is characterized in that, described nozzle (1) is 15mm ~ 30mm from cool air hose top distance; Lance ejection angle is 10 ° ~ 120 °, and the atomized particle size of ejection is 20 ~ 200 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420758441.3U CN204276200U (en) | 2014-12-04 | 2014-12-04 | With the denitration spray gun of cool air hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420758441.3U CN204276200U (en) | 2014-12-04 | 2014-12-04 | With the denitration spray gun of cool air hose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204276200U true CN204276200U (en) | 2015-04-22 |
Family
ID=52859399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420758441.3U Expired - Fee Related CN204276200U (en) | 2014-12-04 | 2014-12-04 | With the denitration spray gun of cool air hose |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204276200U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196012A (en) * | 2016-07-12 | 2016-12-07 | 浙江华尚新能源股份有限公司 | Biomass combustion devices and methods therefor with denitrification functions |
| CN110152480A (en) * | 2019-05-31 | 2019-08-23 | 黄忠 | A kind of denitrating technique improving cement plant SNCR denitration efficiency |
| CN113369034A (en) * | 2021-07-06 | 2021-09-10 | 西安热工研究院有限公司 | Cooling system and method for coal-fired boiler high-temperature ammonia-spraying denitration air-cooling spray gun |
-
2014
- 2014-12-04 CN CN201420758441.3U patent/CN204276200U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196012A (en) * | 2016-07-12 | 2016-12-07 | 浙江华尚新能源股份有限公司 | Biomass combustion devices and methods therefor with denitrification functions |
| CN110152480A (en) * | 2019-05-31 | 2019-08-23 | 黄忠 | A kind of denitrating technique improving cement plant SNCR denitration efficiency |
| CN110152480B (en) * | 2019-05-31 | 2021-06-22 | 黄忠 | Denitration process for improving SNCR denitration efficiency of cement plant |
| CN113369034A (en) * | 2021-07-06 | 2021-09-10 | 西安热工研究院有限公司 | Cooling system and method for coal-fired boiler high-temperature ammonia-spraying denitration air-cooling spray gun |
| CN113369034B (en) * | 2021-07-06 | 2024-02-23 | 西安热工研究院有限公司 | Cooling system and method for high-temperature ammonia spraying denitration air-cooled spray gun of coal-fired boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: HANGZHOU XINJI ENERGY TECHNOLOGY Co.,Ltd. Document name: Notification to Pay the Fees |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20191204 |