CN204602468U - A kind of denitration spray gun device - Google Patents
A kind of denitration spray gun device Download PDFInfo
- Publication number
- CN204602468U CN204602468U CN201520279332.8U CN201520279332U CN204602468U CN 204602468 U CN204602468 U CN 204602468U CN 201520279332 U CN201520279332 U CN 201520279332U CN 204602468 U CN204602468 U CN 204602468U
- Authority
- CN
- China
- Prior art keywords
- spray gun
- cooling collar
- shower nozzle
- denitration
- protective casing
- 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 - Fee Related
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Abstract
The utility model belongs to industrial smoke denitration device technical field, is specially a kind of denitration spray gun device, comprises spray gun, it is characterized in that spray gun outside is surrounded by the cooling collar of hollow, and cooling collar is connected with purging wind air interface; Arrange protective casing between cooling collar and shower nozzle, protective casing is fixed on shower nozzle outside by pin; Bottom cooling collar, snap joint is set; Be connected with compressed air interface and inlet bottom spray gun simultaneously.The feature of the characteristic that this device is large for cement furnace exhaust gas volumn, flow velocity is fast, dust content is high, improves the structure of former shower nozzle, Wear-resistant, high-temperature resistant, and reducing agent can be made fully to be atomized, long service life.
Description
Technical field
The utility model belongs to industrial smoke denitration device technical field, is specially a kind of denitration spray gun device.
Background technology
NOx is one of main atmosphere pollution, quite serious to the harm of human body.NO can make the nervous centralis of people benumb and cause death by suffocation; NO
2toxicity ratio NO stronger, asthma and pulmonary emphysema can be caused, cause the afunction of the heart of people, lung, liver, kidney and hematopoietic tissue.Nitrogen oxide becomes in rain process at air, is formed acid rain and photochemical fog, heavy damage earth ecology bad border by the drop absorption that condensation vapor becomes.SCR (SCR) technology is under catalyst action, reducing agent NH
3(liquefied ammonia, ammoniacal liquor, urea etc.) and the NO in flue gas
xreaction, by the NO in flue gas
xbe reduced to the nitrogen N of nontoxic pollution-free
2with water H
2o.Its reactor is arranged between boiler economizer outlet and air preheater entrance, and reaction temperature is generally between 320 DEG C-400 DEG C, and SCR method denitration technology is the denitration technology of most mature and reliable both at home and abroad at present, and denitration efficiency is high, and security of system is stablized.
In denitrating flue gas work, reducing agent NH
3the jet length of spray gun, spray angle and atomizing effect spray into stove indoor by spray gun to react, so directly can affect denitration efficiency.The outside unprotect device of existing spray gun, spray gun is directly exposed in the stove of high temperature, easy Sun Huan; Spray gun adopts six uniform poroid nozzles, and projected area is less, and atomizing effect is not good.
Summary of the invention
For existing denitration spray gun exist the life-span short, spray uneven, the not good problem of atomization, the utility model proposes a kind of denitration spray gun.
A kind of denitration spray gun of the present utility model, comprises spray gun, it is characterized in that spray gun outside is surrounded by the cooling collar of hollow, and cooling collar is connected with purging wind air interface; Arrange protective casing between cooling collar and shower nozzle, protective casing is fixed on shower nozzle outside by pin; Bottom cooling collar, snap joint is set; Be connected with compressed air interface and inlet bottom spray gun simultaneously.
Increase cooling air and spray gun protective casing; compressed air from work to spray gun, reductant solution and cooling air required when flexible pipe provides is connect soon by three stainless steels; compressed air and reductant solution are mixed completely in rifle, be atomized after spray again; ensure atomizing effect; make it cool in real time in stove simultaneously, prevent spray gun from damaging to improve service life.
Described spray tip adopts single linear nozzle, and jet expansion is fan-shaped.
Strengthen spray angle and jet length, improve atomizing effect; In addition, the change of nozzle arrangements, makes the protection domain of shower nozzle protective casing extend to whole shower nozzle, reduces the distance put in stove, thus improves the coverage rate spraying section, improves denitration rate, also makes extend to about 5 years by original 1 year the service life of shower nozzle.
During use, cooling collar contacts with the outer ancient piece of jade, round, flat and with a hole in its centre of stove and halts, and shower nozzle and protective casing stretch in stove, and reducing agent is quick break under compressed-air actuated effect, and wide-angle is sprayed to enter in stove and reacted, and cooling collar carries out enforcement cooling to spray gun simultaneously.Fast interface is convenient to be separated sleeve pipe with spray gun.
A kind of denitration spray gun device of the present utility model, the feature of the characteristic large for cement furnace exhaust gas volumn, flow velocity is fast, dust content is high, improves the structure of former shower nozzle, Wear-resistant, high-temperature resistant, and reducing agent can be made fully to be atomized, long service life.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of nozzle of the present utility model.
Wherein, cooling collar 1, purges wind air interface 2, protective casing 3, snap joint 4; Compressed air interface 5, inlet 6.
Detailed description of the invention
Embodiment 1: a kind of denitration spray gun of the present utility model, comprises spray gun, is characterized in that spray gun outside is surrounded by the cooling collar 1 of hollow, and cooling collar 1 is connected with purging wind air interface 2; Arrange protective casing 3 between cooling collar 1 and shower nozzle, protective casing 3 is fixed on shower nozzle outside by pin; Snap joint 4 is set bottom cooling collar 1; Be connected with compressed air interface 5 and inlet 6 bottom spray gun simultaneously.Described spray tip adopts single linear nozzle, and jet expansion is fan-shaped.
Claims (2)
1. a denitration spray gun, comprises spray gun, and it is characterized in that spray gun outside is surrounded by the cooling collar (1) of hollow, cooling collar (1) is connected with purging wind air interface (2); Arrange protective casing (3) between cooling collar (1) and shower nozzle, protective casing (3) is fixed on shower nozzle outside by pin; Cooling collar (1) bottom arranges snap joint (4); Be connected with compressed air interface (5) and inlet (6) bottom spray gun simultaneously.
2. a kind of denitration spray gun as claimed in claim 1, it is characterized in that spray tip adopts single linear nozzle, jet expansion is fan-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520279332.8U CN204602468U (en) | 2015-05-04 | 2015-05-04 | A kind of denitration spray gun device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520279332.8U CN204602468U (en) | 2015-05-04 | 2015-05-04 | A kind of denitration spray gun device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204602468U true CN204602468U (en) | 2015-09-02 |
Family
ID=53955057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520279332.8U Expired - Fee Related CN204602468U (en) | 2015-05-04 | 2015-05-04 | A kind of denitration spray gun device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204602468U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570347A (en) * | 2017-10-13 | 2018-01-12 | 中国华能集团公司 | A kind of exterior mixing atomizing lance of surface peening |
| CN107825857A (en) * | 2017-10-23 | 2018-03-23 | 大连理工大学 | A kind of shower nozzle for high-temperature electric jet printing |
| CN108465363A (en) * | 2018-05-29 | 2018-08-31 | 江苏华本环境科技有限公司 | A kind of SNCR denitration system atomizing lance and its application |
| CN108787203A (en) * | 2018-06-29 | 2018-11-13 | 亚德（上海）环保系统有限公司 | A kind of spray gun for denitrification apparatus |
| CN109364712A (en) * | 2018-12-11 | 2019-02-22 | 中国华能集团清洁能源技术研究院有限公司 | A kind of flue gas cooled steam atomization spray gun suitable for SNCR method denitration |
| CN111229008A (en) * | 2020-03-20 | 2020-06-05 | 中国华能集团清洁能源技术研究院有限公司 | Adjustable pressure boosting type injection device and method for denitration of flue gas of CFB boiler |
| CN112742486A (en) * | 2019-10-29 | 2021-05-04 | 中国石油化工股份有限公司 | Oil column catalyst forming device and forming method |
-
2015
- 2015-05-04 CN CN201520279332.8U patent/CN204602468U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107570347A (en) * | 2017-10-13 | 2018-01-12 | 中国华能集团公司 | A kind of exterior mixing atomizing lance of surface peening |
| CN107570347B (en) * | 2017-10-13 | 2023-09-22 | 中国华能集团公司 | Surface-reinforced external mixing type atomizing spray gun |
| CN107825857A (en) * | 2017-10-23 | 2018-03-23 | 大连理工大学 | A kind of shower nozzle for high-temperature electric jet printing |
| CN107825857B (en) * | 2017-10-23 | 2019-04-23 | 大连理工大学 | A kind of spray head for high-temperature electric jet printing |
| CN108465363A (en) * | 2018-05-29 | 2018-08-31 | 江苏华本环境科技有限公司 | A kind of SNCR denitration system atomizing lance and its application |
| CN108787203A (en) * | 2018-06-29 | 2018-11-13 | 亚德（上海）环保系统有限公司 | A kind of spray gun for denitrification apparatus |
| CN109364712A (en) * | 2018-12-11 | 2019-02-22 | 中国华能集团清洁能源技术研究院有限公司 | A kind of flue gas cooled steam atomization spray gun suitable for SNCR method denitration |
| CN112742486A (en) * | 2019-10-29 | 2021-05-04 | 中国石油化工股份有限公司 | Oil column catalyst forming device and forming method |
| CN111229008A (en) * | 2020-03-20 | 2020-06-05 | 中国华能集团清洁能源技术研究院有限公司 | Adjustable pressure boosting type injection device and method for denitration of flue gas of CFB boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20150902 Termination date: 20200504 |