CN206810049U - A kind of injector for SNCR denitration system - Google Patents
A kind of injector for SNCR denitration system Download PDFInfo
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- CN206810049U CN206810049U CN201720718352.XU CN201720718352U CN206810049U CN 206810049 U CN206810049 U CN 206810049U CN 201720718352 U CN201720718352 U CN 201720718352U CN 206810049 U CN206810049 U CN 206810049U
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- reducing agent
- channel
- air
- compressed air
- air hose
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Abstract
The utility model discloses a kind of injector for SNCR denitration system, and it mainly includes the first air hose, reducing agent pipe and the second air hose, it is characterised in that：The reducing agent pipe sleeve is connected on first air hose, and second air hose is socketed on the reducing agent pipe；Reducing agent first passage and reducing agent second channel are formed between first air hose and the reducing agent pipe, compressed air second channel is formed between the reducing agent pipe and second air hose.The utility model by pull of vacuum increase reducing agent flow out potential energy, and jet atomization and it is secondary, be atomized three times, reducing agent drop is evenly more refined, improve denitration efficiency.
Description
Technical field
It the utility model is related to a kind of equipment for denitrifying flue gas technical field, more particularly to a kind of injector device.
Background technology
One of the main reason for nitrogen oxides is acid rain, endanger the health of people.Nitrogen oxides is ceramics factory's spraying
One of emission of tower.Country and place are more and more tighter to the standard limit of smog release of each ceramics factory now, not up to standard to be forbidden out tower
Production, each ceramics factory are the production that goes into operation, and transformation and upgrade are carried out to the spray tower flue gas emission in factory.SNCR flue gases take off at present
Nitre technology, should in ceramics factory's spray tower flue gas system transformation because its system operatio is simple, small investment, facility are simple, it is few to take up an area
With extensive.The atomizing effect of spray gun is one of key technology of SNCR denitration system, and the size of atomized drop directly affects entirely
The denitration efficiency of flue gas emission, influence the discharge value of nitrogen oxides.Existing SNCR denitration injector atomization is uneven, atomization
Effect is undesirable, influences denitration efficiency；Reducing agent hydraulic pressure is small in another gravity flow SNCR denitration device, and flowing potential energy is low, there is dropping liquid
Phenomenon, corrosion is produced to furnace wall, endangers equipment.
Utility model content
In order to solve the above-mentioned technical problem, a kind of injector for SNCR denitration system of the utility model uses following skill
Art scheme：A kind of injector for SNCR denitration system, including the first air hose, reducing agent pipe and the second air hose, it is special
Sign is：The reducing agent pipe sleeve is connected on first air hose, and second air hose is socketed on the reducing agent pipe；
The reducing agent first passage and reducing agent second channel locally penetrated is formed between first air hose and the reducing agent pipe,
Compressed air second channel is formed between the reducing agent pipe and second air hose;First air hose includes compression
Air first entrance compressed air first passage and the first jet；Wherein, the reducing agent pipe）Front end is the second jet,
Reducing agent tube cavity between first jet and second jet forms hybrid channel；Wherein, the compression is empty
Gas second channel locally penetrates with the hybrid channel.
Compressed air first entrance is connected to the compressed air first passage, and the compressed air first passage is connected to
First jet；Reducing agent entrance is connected to the reducing agent first passage, and the reducing agent first passage passes through n（n≥4）It is individual
Circumferentially equally distributed inlet opening connects with the reducing agent second channel；Compressed air is sprayed at a high speed from first jet
Going out, constantly the air suction in the reducing agent second channel is walked, the reducing agent second channel forms certain vacuum degree,
Suction is produced to reducing agent, increases the flowing potential energy of reducing agent.
The reducing agent pipe front end is the second jet, described between first jet and second jet
Reducing agent tube cavity forms hybrid channel；Compressed air sprays at a high speed from first jet, to passing through the reducing agent the
The come in reducing agent of the hybrid channel of two passages constantly hits shearing, is atomized, produces atomized drop.
More preferably, the compressed air second channel passes through m（m≥6）Individual circumferentially equally distributed cone section air admission hole connects
Lead to the hybrid channel, shock shearing is carried out to atomized drop, secondary-atomizing, makes it evenly thinner.
More preferably, the angle that the cone section air admission hole is formed with the hybrid channel is 30 ° ~ 60 °, the cone section air admission hole
Compressed air can be achieved with the distance of second jet and form primary event on the reducing agent pipe, make atomized drop again
Shearing is once hit in increase, is atomized three times.
Wherein, the cone section air admission hole（15）With second jet（8）Distance s, the cone section air admission hole（15）
With the hybrid channel（7）Form angle α, the hybrid channel（7）Diameter d meet condition be d × cot (α)<s<2 ×
d×cot(α)。
The utility model has the advantages that：The utility model increases the gesture of reducing agent outflow by pull of vacuum
Can, and jet atomization and it is secondary, be atomized three times, reducing agent drop is evenly more refined, improve denitration efficiency；In addition, this
Utility model can be by adjusting the rate-of flow ratio of compressed air first entrance, compressed air second entrance and reducing agent entrance
Example, obtains suitable atomization condition, adjustable range is big.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of injector for SNCR denitration system of the utility model.
Figure number explanation
1st, compressed air first entrance；2nd, the first air hose；3rd, compressed air first passage；4th, inlet opening；5th, reducing agent
Second channel；6th, the first jet；7th, hybrid channel；8th, the second jet；9th, reducing agent entrance；10th, reducing agent pipe；11st, also
Former agent first passage；12nd, compressed air second entrance；13rd, the second air hose；14th, compressed air second channel；15th, cone section is entered
Stomata.
Embodiment
The specific works method of a kind of injector for SNCR denitration system of the utility model, as shown in figure 1, its structure
Mainly include the first air hose 2, the air hose 13 of reducing agent pipe 10 and second；Reducing agent pipe 10 is socketed on the first air hose 2, the
Two air hoses 13 are socketed on reducing agent pipe 10；The reducing agent locally penetrated is formed between first air hose 2 and reducing agent pipe 10
First passage 11 and reducing agent second channel 5, compressed air second channel is formed between the air hose 13 of reducing agent pipe 10 and second
14。
Wherein, the rear end of the first air hose 2（Left side in figure）The compressed air first entrance 1 of setting, compressed air first
Entrance 1 is connected to compressed air first passage 3, and compressed air first passage 3 is connected to the first jet 6；The reducing agent pipe 13
Front end（Right side in figure）The second jet 8 is provided with, in the reducing agent pipe between the first jet 6 and second jet 8
Chamber forms the hybrid channel 7 with a segment distance；The compressed air second channel 14 and the local insertion in the hybrid channel 7,
The reducing agent second channel 5 penetrates with hybrid channel 7.
Wherein, the front end of reducing agent first passage 11 passes through n circumferentially equally distributed inlet openings 4 and the reduction
Agent second channel 5 connects, and the rear end of reducing agent first passage 11 is connected to reducing agent entrance 9, wherein n >=4, in the present embodiment
The number of inlet opening 4 is 8.
Wherein, the front end of compressed air second channel 14 is connected to compressed air second entrance 12, compressed air second
Passage 14 connects the hybrid channel 7 by the individual circumferentially equally distributed cone section air admission holes 15 of m, wherein, m >=6, bore section air inlet
Hole 15 is arranged on the wall of reducing agent first passage 11.The number that section air admission hole 15 is bored in the present embodiment is 8.The cone section air inlet
Hole 15 forms angle with the hybrid channel 7, and angle is 30 ° ~ 60 ° of α, and angle α is 45 ° in the present embodiment.
The distance s of the cone section air admission hole 15 and second jet 8, the cone section air admission hole 15 lead to described mix
Road 7 forms angle α, and the condition that the diameter d of the hybrid channel 7 meets is d × cot (α)<s<2 ×d×cot(α).This example
A diameter of 13mm of middle hybrid channel 7, the distance for boring section air admission hole 15 and the second jet 9 take 20mm（13×cot（45°）<s<
2×13× cot（45°））, compressed air can be made to form reflection on reducing agent pipe 10.
Specifically workflow is：Compressed air is entered by compressed air first entrance 1, flows through compressed air first passage
3, sprayed at a high speed in the first jet 6；Reducing agent is entered by reducing agent entrance 9, is flowed through reducing agent first passage 11, is passed through feed liquor
Hole 4 enters reducing agent second channel 5；Compressed air constantly sprays at a high speed in the first jet 6, in reducing agent second channel 5
Air suction walk, formed certain vacuum degree, to reducing agent rise suction, reducing agent flowing potential energy increase, in hybrid channel 7
Shearing is constantly hit with compressed air, atomized drop is produced, is sprayed at a high speed in the second jet 8；Compressed air is by compressed air
Second entrance 12 enters, and flows through compressed air second channel 14, by boring section air admission hole 15 to the atomized liquid in hybrid channel 7
Drop carries out shock shearing, secondary-atomizing, and compressed air carries out shock to atomized drop by reflection on reducing agent pipe 10 and cut again
Cut, be atomized three times, make the drop that ejects from the second jet evenly thinner.
Claims (6)
- A kind of 1. injector for SNCR denitration system, it is characterised in that：Including the first air hose（2）, reducing agent pipe（10） And second air hose（13）, the reducing agent pipe（10）It is socketed in first air hose（2）On, second air hose（13） It is socketed in the reducing agent pipe（10）On；First air hose（2）With the reducing agent pipe（10）Between form local insertion Reducing agent first passage（11）With reducing agent second channel（5）, the reducing agent pipe（10）With second air hose（13） Between formed compressed air second channel（14）;Wherein described first air hose（2）Including compressed air first entrance（1）, pressure Contracting air first passage（3）With the first jet（6）；Wherein, the reducing agent pipe（10）Front end is the second jet（8）, institute State the first jet（6）With second jet（8）Between reducing agent tube cavity formed hybrid channel（7）；Wherein, it is described Compressed air second channel（14）With the hybrid channel（7）Local insertion.
- A kind of 2. injector for SNCR denitration system according to claim 1, it is characterised in that：The reducing agent One passage（11）Front end passes through n circumferentially equally distributed inlet openings（4）With the reducing agent second channel（5）Connection, institute State reducing agent first passage（11）It is connected to reducing agent entrance（9）, n >=4.
- A kind of 3. injector for SNCR denitration system according to claim 1, it is characterised in that：The compressed air Second channel（14）Pass through the individual circumferentially equally distributed cone section air admission holes of m（15）Connect the hybrid channel（7）, m >=6.
- A kind of 4. injector for SNCR denitration system according to claim 3, it is characterised in that：The cone section air inlet Hole（15）With the hybrid channel（7）Angle α is formed, angle α is 30 ° ~ 60 °.
- A kind of 5. injector for SNCR denitration system according to claim 3, it is characterised in that：The compressed air Second channel（14）With compressed air second entrance（12）Connection.
- 6. a kind of injector for SNCR denitration system according to any claim in claim 3 to 5, its feature It is：The cone section air admission hole（15）With second jet（8）Distance s, the cone section air admission hole（15）Mixed with described Close passage（7）Form angle α, the hybrid channel（7）Diameter d meet condition be d × cot (α)<s<2 ×d×cot (α)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720718352.XU CN206810049U (en) | 2017-06-20 | 2017-06-20 | A kind of injector for SNCR denitration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720718352.XU CN206810049U (en) | 2017-06-20 | 2017-06-20 | A kind of injector for SNCR denitration system |
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| Publication Number | Publication Date |
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| CN206810049U true CN206810049U (en) | 2017-12-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107126831A (en) * | 2017-06-20 | 2017-09-05 | 佛山市三水新明珠建陶工业有限公司 | A kind of injector for SNCR denitration system |
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- 2017-06-20 CN CN201720718352.XU patent/CN206810049U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107126831A (en) * | 2017-06-20 | 2017-09-05 | 佛山市三水新明珠建陶工业有限公司 | A kind of injector for SNCR denitration system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200605 Address after: 528131 Guangdong city of Foshan province Baini town Sanshui District Central Industrial Development Zone Co-patentee after: NEWPEARL CERAMICS GROUP Co.,Ltd. Patentee after: FOSHAN SANSHUI NEW PEARL CONSTRUCTION CERAMICS INDUSTRIAL Co.,Ltd. Address before: 528061 Guangdong city of Foshan province Baini town Sanshui District Central Industrial Development Zone Co-patentee before: GUANGDONG GELAISI CERAMICS Co.,Ltd. Patentee before: FOSHAN SANSHUI NEW PEARL CONSTRUCTION CERAMICS INDUSTRIAL Co.,Ltd. Co-patentee before: NEWPEARL CERAMICS GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528131 Central Industrial Development Zone, Baini Town, Sanshui District, Foshan City, Guangdong Province Patentee after: FOSHAN SANSHUI NEW PEARL CONSTRUCTION CERAMICS INDUSTRIAL Co.,Ltd. Patentee after: New Pearl Group Co., Ltd Address before: 528131 Central Industrial Development Zone, Baini Town, Sanshui District, Foshan City, Guangdong Province Patentee before: FOSHAN SANSHUI NEW PEARL CONSTRUCTION CERAMICS INDUSTRIAL Co.,Ltd. Patentee before: Guangdong xinmingzhu Ceramics Group Co., Ltd |
|
| CP01 | Change in the name or title of a patent holder |