CN203196525U - SNCR (selective non-catalytic reduction) cyclone atomizing spray gun with bluff body device - Google Patents
SNCR (selective non-catalytic reduction) cyclone atomizing spray gun with bluff body device Download PDFInfo
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- CN203196525U CN203196525U CN 201320213649 CN201320213649U CN203196525U CN 203196525 U CN203196525 U CN 203196525U CN 201320213649 CN201320213649 CN 201320213649 CN 201320213649 U CN201320213649 U CN 201320213649U CN 203196525 U CN203196525 U CN 203196525U
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- compressed air
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Abstract
The utility model discloses an SNCR cyclone atomizing spray gun with a bluff body device. A casing is formed on the outer surface of the spray gun; a compressed air input pipe extends into the casing from one end of the casing and is fixed in the casing; the outlet of the compressed air input pipe adopts a shuttle body; a plurality of bubble injection holes are formed in the shuttle body; the outlet of the shuttle body adopts a bubble nozzle; a bluff body is fixed at the outlet of the bubble nozzle in the casing; a compressed air pipeline is formed in the compressed air input pipe; a reducing agent pipeline is formed between the casing and the compressed air input pipe; a cyclone device divides the reducing agent pipeline into a unidirectional flow zone and a cyclone zone; a reducing agent input pipe is communicated with the unidirectional flow zone; the cyclone zone is communicated with an accelerating zone at the other end of the casing; a jet nozzle is connected with the accelerating zone through threads. The SNCR cyclone atomizing spray gun has the advantages that a cyclone device is arranged in the reducing agent pipeline, so that turbulence is enhanced, mixing conditions are improved, and the denitration efficiency is improved; in addition, the bluff body further enhances the turbulence level of compressed air and the reducing agent, the mixing time is prolonged, the mixing effect is improved, and efficient denitration is realized.
Description
Technical field
The utility model relates to a kind of SNCR(SNCR reaction that has the bluff body device) the swirling flow atomizing spray gun.
Background technology
China's economy develops rapidly, and the sulfur dioxide in the atmosphere and the concentration of nitrogen oxide increase day by day.In the process of economic development, be accompanied by the increase of coal consumption, make China become and consume the maximum country of coal in the world.Coal dust firing can be followed the discharging of a large amount of polluters, as dust, SO
2, NO
xDeng.According to statistics, China's thermoelectricity NO
xDischarge capacity surpassed 2,000 ten thousand tons in 2008, became the NO of world rankings first
xDischarging state.At present at the selective catalytic reduction of the main method of denitrating flue gas (SCR) and SNCR (SNCR) denitration technology etc.The SCR denitration technology has higher denitration efficiency, but owing to used comparatively rare metal as catalyst, so cost is higher.The SNCR denitration technology then has advantages such as cost is low, transformation is simple, the construction period is short, and under the condition of mixing fully, also can reach the denitration rate more than 80%.The SNCR denitration technology conforms to the national conditions of China developing country, also can satisfy existing environmental requirement, and it is very feasible therefore promoting this technology in China.
The key equipment of SCR denitration technology is the reducing agent atomizing lance.Spray gun has directly determined the quality of flue gas and reducing agent mixability to the quality of reducing agent fogging degree.Reducing agent atomizing lance commonly used at present is simple in structure, and what have just arranges the mixed aerosol nozzle endways, causes atomizing effect undesirable, can not evenly produce droplet, simultaneously easily by high temperature corrosion, needs often to change; The spray gun atomizing effect that has is good, and as pneumatic atomizing nozzle, but it exists the gas consumption rate big, reducing agent pressure height, and structure is shortcoming such as complexity too, and technology is still immature.
The utility model content
At the problem of above existence, the purpose of this utility model is to provide a kind of SNCR swirling flow atomizing spray gun that has the bluff body device, and this atomizing lance can improve atomizing eddy flow intensity, improves the reducing agent mixability, realizes efficient denitration.
The technical solution adopted in the utility model is: a kind of SNCR swirling flow atomizing spray gun that has the bluff body device, this spray gun is cylindric, its outer surface is housing, and the compressed air input pipe stretches into and is fixed in the housing from housing one end, and the outlet of compressed air input pipe is the shuttle body; Have a plurality of bubble hand-holes on the shuttle body, the outlet of shuttle body is the bubble spout; Bluff body is fixed on the exit of bubble spout in the housing; Being compressed air line in the compressed air input pipe, is the reducing agent pipeline between housing and the compressed air input pipe, and the swirl-flow devices that is fixed in the housing is divided into DC area and eddy flow district with the reducing agent pipeline; The reducing agent input pipe that is fixed on the housing communicates with DC area; The eddy flow district communicates with the accelerating region of the housing other end; Nozzle is threaded with accelerating region.
The beneficial effect that the utlity model has is:
1, in the reducing agent pipeline of the present utility model swirl-flow devices is set, increases disturbance, improved mixing condition, improve denitration efficiency;
2, compressed air line of the present utility model exit arranges bluff body, increases the flow-disturbing degree of compressed air and reducing agent, prolongs incorporation time, and the raising mixed effect is realized efficient denitration.
Description of drawings
Fig. 1 is a kind of structural representation that has the SNCR swirling flow atomizing spray gun of bluff body device;
Among the figure: compressed air input pipe 1, reducing agent input pipe 2, DC area 3, compressed air line 4, swirl-flow devices 5, bluff body 6, accelerating region 7, nozzle 8, housing 9, bubble hand-hole 10, bubble spout 11, eddy flow district 12.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1, the utility model is a kind of SNCR swirling flow atomizing spray gun that has the bluff body device, and this spray gun is cylindric, and its outer surface is housing 9, compressed air input pipe 1 stretches into and is fixed in the housing 9 from housing 9 one ends, and the outlet of compressed air input pipe 1 is the shuttle body; Have a plurality of bubble hand-holes 10 on the shuttle body, the outlet of shuttle body is bubble spout 11; Bluff body 6 is fixed on the exit of bubble spout 11 in the housing 9; Being compressed air line 4 in the compressed air input pipe 1, is the reducing agent pipeline between housing 9 and the compressed air input pipe 1, and the swirl-flow devices 5 that is fixed in the housing 9 is divided into DC area 3 and eddy flow district 12 with the reducing agent pipeline; The reducing agent input pipe 2 that is fixed on the housing 9 communicates with DC area 3; Eddy flow district 12 communicates with the accelerating region 7 of housing 9 other ends; Nozzle 8 is threaded with accelerating region 7.
The course of work of the present utility model is as follows: atomizing lance is opened air compressor after starting, and the compressed air access tube 1 of compressed air enters the compressed air line 4 in the spray gun.Simultaneously, reductant solution enters DC area 3 through reducing agent input pipe 2, through entering eddy flow district 12 behind the swirl-flow devices 5 generation eddy flows.Have a plurality of bubble hand-holes 10 on the shuttle body of compressed air line 4 outlets, during operation, compressed air pressure is slightly larger than reducing agent pressure, and the air of compressed air line 4 atomizes through the reductant solution of bubble hand-hole 10 with eddy flow district 12, forms bubble.Gas behind the mixed aerosol by bluff body 6 aggravation eddy flow degree, prolongs incorporation time.Atomized liquid sprays into burner hearth by nozzle 8 and carries out the denitrating flue gas processing through accelerating region in the eddy flow district 12.Swirl-flow devices 5 the flow-disturbing degree that can aggravate reducing agent is set, for effervescent atomization ready.Simultaneously, arranging of bluff body 6 can further increase disturbance with atomized liquid, prolongs incorporation time.
Claims (1)
1. SNCR swirling flow atomizing spray gun that has the bluff body device, it is characterized in that this spray gun is cylindric, its outer surface is housing (9), compressed air input pipe (1) stretches into and is fixed in the housing (9) from housing (9) one ends, and the outlet of compressed air input pipe (1) is the shuttle body; Have a plurality of bubble hand-holes (10) on the shuttle body, the outlet of shuttle body is bubble spout (11); Bluff body (6) is fixed on the exit of the interior bubble spout of housing (9) (11); Be compressed air line (4) in the compressed air input pipe (1), be the reducing agent pipeline between housing (9) and the compressed air input pipe (1), the swirl-flow devices (5) that is fixed in the housing (9) is divided into DC area (3) and eddy flow district (12) with the reducing agent pipeline; The reducing agent input pipe (2) that is fixed on the housing (9) communicates with DC area (3); Eddy flow district (12) communicates with the accelerating region (7) of housing (9) other end; Nozzle (8) is threaded with accelerating region (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320213649 CN203196525U (en) | 2013-04-25 | 2013-04-25 | SNCR (selective non-catalytic reduction) cyclone atomizing spray gun with bluff body device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320213649 CN203196525U (en) | 2013-04-25 | 2013-04-25 | SNCR (selective non-catalytic reduction) cyclone atomizing spray gun with bluff body device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203196525U true CN203196525U (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320213649 Expired - Fee Related CN203196525U (en) | 2013-04-25 | 2013-04-25 | SNCR (selective non-catalytic reduction) cyclone atomizing spray gun with bluff body device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203196525U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103230740A (en) * | 2013-04-25 | 2013-08-07 | 朱跃 | SNCR (selective non-catalytic reduction) swirl atomization spray gun with bluff body device |
| CN110038418A (en) * | 2019-05-17 | 2019-07-23 | 中国华能集团清洁能源技术研究院有限公司 | A kind of rotary vane type SNCR denitration hybrid system and its working method for coal-powder boiler |
-
2013
- 2013-04-25 CN CN 201320213649 patent/CN203196525U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103230740A (en) * | 2013-04-25 | 2013-08-07 | 朱跃 | SNCR (selective non-catalytic reduction) swirl atomization spray gun with bluff body device |
| CN110038418A (en) * | 2019-05-17 | 2019-07-23 | 中国华能集团清洁能源技术研究院有限公司 | A kind of rotary vane type SNCR denitration hybrid system and its working method for coal-powder boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU SEEKING ENVIRONMENTAL PROTECTION TECHONLO Free format text: FORMER OWNER: ZHU YUE Effective date: 20140129 |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 150040 HARBIN, HEILONGJIANG PROVINCE TO: 310012 HANGZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140129 Address after: 310012, room 1506, C, Zijin Plaza, 701 Pier Road, Hangzhou, Zhejiang, Xihu District Patentee after: Hangzhou Seeking Environmental Protection Techonlogy Co., Ltd. Address before: 702, room 5, unit 15, building 5, dynamic source street, 150040 Power District, Heilongjiang, Harbin Patentee before: Zhu Yue |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130918 Termination date: 20210425 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |