CN209663041U - A kind of denitrating flue gas ammonia-gas spraying device - Google Patents
A kind of denitrating flue gas ammonia-gas spraying device Download PDFInfo
- Publication number
- CN209663041U CN209663041U CN201920214907.6U CN201920214907U CN209663041U CN 209663041 U CN209663041 U CN 209663041U CN 201920214907 U CN201920214907 U CN 201920214907U CN 209663041 U CN209663041 U CN 209663041U
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- China
- Prior art keywords
- ammonia
- spray
- spray ammonia
- flue gas
- pipe
- Prior art date
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 182
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 239000003546 flue gas Substances 0.000 title claims abstract description 55
- 238000005507 spraying Methods 0.000 title claims abstract description 15
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 84
- 239000007921 spray Substances 0.000 claims abstract description 69
- 239000000779 smoke Substances 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000003628 erosive effect Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 12
- 238000013461 design Methods 0.000 description 10
- 239000007787 solid Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- 238000005457 optimization Methods 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004047 hole gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a kind of denitrating flue gas ammonia-gas spraying devices, including SCR flue, smoke inlet, spray ammonia component, deflector and spray ammonia supervisor；Smoke inlet is located at a side-lower of SCR flue；Spray ammonia component is set to the inside of SCR flue and is located at the top of smoke inlet, and spray ammonia component is made of the equidistant several spray ammonia pipes of two rows, and cross-shaped arrangement between the spray ammonia pipe of uplink and downlink；Several equidistant spray-holes are equipped on spray ammonia pipe；Deflector is installed on the lower section of spray ammonia pipe by supporting plate；The outside that ammonia supervisor is set to SCR flue is sprayed, and sprays ammonia supervisor and is connected by spray ammonia branch pipe with each spray ammonia pipe.Compared with prior art the beneficial effects of the utility model are: reducing flue gas while guaranteeing that ammonia mixes with flue gas ability to the erosion damage of spray-hole and spray ammonia pipe.
Description
Technical field
The utility model relates to fume treatment technical fields, more particularly to a kind of denitrating flue gas ammonia-gas spraying device.
Background technique
Country's atmosphere pollution is very serious at present, and the requirement that country administers atmosphere pollution is higher and higher, national environmental protection
Portion is made that more stringent regulation, especially part save in terms of pollution sources and flue dust, sulfur dioxide and nitrogen oxides is required to arrive
Up to the standard of minimum discharge.Flue gas pollutant administer technology it is also more and more, in equipment for denitrifying flue gas, be commonly designed be by
Flue cross section is divided into several control areas, and there is several spray-holes in each control area.
Upper general consistent with flow of flue gas direction using injection direction in spray-hole design, this arrangement of nozzles mode exists
Mixed effect is usually unsatisfactory, needs to increase flue length to extend ammonia air mixing distance, adopts certainly there are also some
With spray-hole injection direction and the reverse design in flow of flue gas direction, although this mode mixed effect is preferable, due to cigarette
Gas is high temperature and has solid particle polluter, and prolonged use can cause spray-hole greatly to damage, while spray ammonia pipe
Also it will receive erosion.
Therefore in view of the above-mentioned problems, also needing constantly to improve optimization to existing spray ammonia technical equipment, guaranteeing ammonia
While gas mixes with flue gas ability, flue gas is also reduced to the erosion damage of spray-hole and spray ammonia pipe.
Utility model content
The purpose of the utility model is to overcome disadvantages of the existing technology, provide a kind of denitrating flue gas ammonia-gas spraying device,
Flue gas is reduced while guaranteeing that ammonia mixes with flue gas ability to the erosion damage of spray-hole and spray ammonia pipe.
To achieve the goals above, technical solution adopted in the utility model is: a kind of denitrating flue gas ammonia-gas spraying device, packet
Include SCR flue, smoke inlet, spray ammonia component, deflector and spray ammonia supervisor；The smoke inlet is located at a side-lower of SCR flue；Institute
State the top that spray ammonia component is set to the inside of SCR flue and is located at smoke inlet, the spray ammonia component several spray ammonia equidistant by two rows
Pipe composition, and cross-shaped arrangement between the spray ammonia pipe of uplink and downlink；Several equidistant spray-holes are equipped on the spray ammonia pipe；Institute
State the lower section that deflector is installed on spray ammonia pipe by supporting plate；The spray ammonia supervisor is set to the outside of SCR flue, and sprays ammonia supervisor
It is connected by spray ammonia branch pipe with each spray ammonia pipe.
As optimization, the V-shaped structure of deflector, and the side of the opening direction of its " V " shape structure and flue gas flow direction
To consistent.Flow-disturbing effect is played to flue gas by the deflector of " V " shape, promotes the mixing of flue gas and ammonia.
As optimization, the opening angle size of the deflector " V " shape structure is 75 ° -120 °, and opening between its both ends
Mouth distance is greater than the outer diameter of spray ammonia pipe.The structure design of deflector is advanced optimized by testing measuring and calculating, while ammonia pipe will be sprayed
Bottom covering, to prevent high temperature and the solid particle polluter therein of flue gas from causing to corrode to spray ammonia pipe.
As optimization, the surface of the deflector " V " shape structure is laciniation.Broached-tooth design is first is that further increase
The flow-disturbing effect for having added flue gas, effectively stops second is that being increased by broached-tooth design with the contact area of flue gas and friction effect
Solid particle polluter in flue gas.
As optimization, the bottom of the SCR flue is equipped with the slag-drip opening of inverted cone-shaped structure.The solid particle polluter of blocking passes through
Slag-drip opening discharge.
As optimization, the spray-hole is symmetrically disposed on the two sides of spray ammonia pipe, and the injection direction of spray-hole and flue gas stream
Angle between is 90 °.First is that flue gas is prevented directly to impact to spray-hole, second is that increasing flue gas and ammonia
Mixed effect.
It is excellent compared with prior art the beneficial effects of the utility model are: changing the internal structure of traditional SCR flue
Changed deflector and spray ammonia pipe position grouping relationship, while deflector plays flow-disturbing effect, protect spray ammonia pipe not by
The erosion of flue gas, while the surface layer of deflector is designed as broached-tooth design, increase contact area and friction effect with flue gas
Effectively block solid particle polluter, solid particle polluter after the blocking of deflector from slag-drip opening using being directly discharged；Root
According to the preferred positional relationship of spray-hole of positional relationship of deflector and spray ammonia pipe, make between its injection direction and flue gas flow direction
Angle is 90 °, improves the effect mixed with flue gas.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the left view of the utility model.
Fig. 3 is the schematic perspective view that the utility model sprays ammonia pipe and deflector.
Wherein, flue 1, slag-drip opening 2, flue 3, spray ammonia pipe 4, deflector 5, supporting plate 6, spray-hole 7, spray ammonia branch pipe 8,
Spray ammonia supervisor 9.
Specific embodiment
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, it is described with reference to the accompanying drawings as follows:
A kind of denitrating flue gas ammonia-gas spraying device, including SCR flue 1, smoke inlet 3, spray ammonia component, deflector 5 and spray ammonia supervisor 9；It is described into
Mouth 3 is located at a side-lower of SCR flue 1；The spray ammonia component is set to the inside of SCR flue 1 and is located at the upper of smoke inlet 3
Side, spray ammonia component is made of the equidistant several spray ammonia pipes 4 of two rows, and cross-shaped arrangement between the spray ammonia pipe 4 of uplink and downlink, is passed through
The arrangement of staggered structure is so that the mixing of flue gas and ammonia is more uniform；Several equidistant sprays are equipped on the spray ammonia pipe 4
Perforation 7；The deflector 5 is installed on the lower section of spray ammonia pipe 4 by supporting plate 6；The bottom of the SCR flue 1 is equipped with back taper
The slag-drip opening 2 of structure.Solid particle polluter in flue gas stops to be discharged from slag-drip opening through deflector.The spray ammonia supervisor 9 sets
In the outside of SCR flue 1, and sprays ammonia supervisor 9 and be connected by spraying ammonia branch pipe 8 with each spray ammonia pipe 4.
The V-shaped structure of the deflector 5, and the opening direction of its " V " shape structure is consistent with the direction of flue gas flow direction.
Flow-disturbing effect is played to flue gas by the deflector of " V " shape, promotes the mixing of flue gas and ammonia.The 5 " V " shape structure of deflector
Opening angle size be 75 ° -120 °, and the extended distance between its both ends be greater than spray ammonia pipe 4 outer diameter.Calculated by experiment
The structure design of deflector is advanced optimized, while the bottom covering of ammonia pipe will be sprayed, to prevent the high temperature of flue gas and therein solid
Body granule foreign causes to corrode to spray ammonia pipe.The surface of the 5 " V " shape structure of deflector is laciniation.Broached-tooth design one
It is the flow-disturbing effect for further increasing flue gas, is imitated second is that being increased by broached-tooth design with the contact area of flue gas and friction
Fruit effectively blocks the solid particle polluter in flue gas.
The spray-hole 7 is symmetrically disposed on the two sides of spray ammonia pipe 4, and between the injection direction and flue gas flow direction of spray-hole 4
Angle be 90 °.First is that preventing flue gas directly to impact to spray-hole, second is that the mixing for increasing flue gas and ammonia is imitated
Fruit.
Its working principle is that:
Flue gas plays one by deflector 5 first after entering pipeline inside in the smoke inlet 3 of 1 lower part side of SCR flue
The effect of secondary flow-disturbing, the spray-hole 7 for then being sprayed 4 two sides of ammonia pipe spray ammonia, make flue gas and ammonia while second-disturbing flow
Start to be mixed, due to the arrangement of cross-shaped structure between the spray ammonia pipe 4 of upper and lower level, so that flue gas and ammonia is mixed
Close it is more uniform, solid particle polluter in flue gas effectively stopped by the broached-tooth design on 5 " V " shape plate of deflector after because of itself
Gravity is discharged from slag-drip opening 2.
Above-mentioned specific embodiment is only the specific case of the utility model, and the scope of patent protection of the utility model includes
But it is not limited to the product form and style of above-mentioned specific embodiment, a kind of any cigarette for meeting the utility model claims book
The appropriate changes or modifications that qi exhaustion nitre ammonia-gas spraying device and any person of an ordinary skill in the technical field do it, should all fall
Enter the scope of patent protection of the utility model.
Claims (6)
1. a kind of denitrating flue gas ammonia-gas spraying device, it is characterised in that: including SCR flue (1), smoke inlet (3), spray ammonia component, water conservancy diversion
Plate (5) and spray ammonia supervisor (9)；The smoke inlet (3) is located at a side-lower of SCR flue (1)；The spray ammonia component is set to
The inside of SCR flue (1) and the top for being located at smoke inlet (3), spray ammonia component are made of the equidistant several spray ammonia pipes (4) of two rows,
And cross-shaped arrangement between the spray ammonia pipe (4) of uplink and downlink；Several equidistant spray-holes (7) are equipped on the spray ammonia pipe (4)；
The deflector (5) is installed on the lower section of spray ammonia pipe (4) by supporting plate (6)；The spray ammonia supervisor (9) is set to SCR flue (1)
Outside, and spray ammonia supervisor (9) by spray ammonia branch pipe (8) be connected with each spray ammonia pipe (4).
2. a kind of denitrating flue gas ammonia-gas spraying device according to claim 1, it is characterised in that: the deflector (5) is V-shaped
Structure, and the opening direction of its " V " shape structure is consistent with the direction of flue gas flow direction.
3. a kind of denitrating flue gas ammonia-gas spraying device according to claim 1, it is characterised in that: deflector (5) the " V " shape knot
The opening angle size of structure is 75 ° -120 °, and the extended distance between its both ends is greater than the outer diameter of spray ammonia pipe (4).
4. a kind of denitrating flue gas ammonia-gas spraying device according to claim 2, it is characterised in that: deflector (5) the " V " shape knot
The surface of structure is laciniation.
5. a kind of denitrating flue gas ammonia-gas spraying device according to claim 1, it is characterised in that: the bottom of the SCR flue (1)
Slag-drip opening (2) equipped with inverted cone-shaped structure.
6. a kind of denitrating flue gas ammonia-gas spraying device according to claim 1, it is characterised in that: the spray-hole (7) symmetrically sets
The two sides of spray ammonia pipe (4) are placed in, and the angle between the injection direction and flue gas flow direction of spray-hole (7) is 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920214907.6U CN209663041U (en) | 2019-02-20 | 2019-02-20 | A kind of denitrating flue gas ammonia-gas spraying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920214907.6U CN209663041U (en) | 2019-02-20 | 2019-02-20 | A kind of denitrating flue gas ammonia-gas spraying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209663041U true CN209663041U (en) | 2019-11-22 |
Family
ID=68569130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920214907.6U Active CN209663041U (en) | 2019-02-20 | 2019-02-20 | A kind of denitrating flue gas ammonia-gas spraying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209663041U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111111436A (en) * | 2020-01-16 | 2020-05-08 | 沂州科技有限公司 | Reduce NO in waste gas generated by coke ovenxSCR denitration reactor of content |
| CN113440938A (en) * | 2021-07-16 | 2021-09-28 | 扬州工业职业技术学院 | Dust removal and filtration device for cement kiln flue gas |
| CN117443192A (en) * | 2023-12-25 | 2024-01-26 | 安徽华中半导体材料有限公司 | Argon recovery and purification device and process |
-
2019
- 2019-02-20 CN CN201920214907.6U patent/CN209663041U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111111436A (en) * | 2020-01-16 | 2020-05-08 | 沂州科技有限公司 | Reduce NO in waste gas generated by coke ovenxSCR denitration reactor of content |
| CN113440938A (en) * | 2021-07-16 | 2021-09-28 | 扬州工业职业技术学院 | Dust removal and filtration device for cement kiln flue gas |
| CN117443192A (en) * | 2023-12-25 | 2024-01-26 | 安徽华中半导体材料有限公司 | Argon recovery and purification device and process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: B15-101, south area of Shandong design and Creative Industrial Park, no.868 Tangye West Road, Jinan District, China (Shandong) pilot Free Trade Zone, Jinan City, Shandong Province Patentee after: Shandong Chuangyu Energy Technology Co.,Ltd. Address before: 250000 Tianyuan villa 7-1-301, Tianzhuang village, Ganggou Town, Licheng District, Jinan City, Shandong Province Patentee before: Shandong Chuangyu Environmental Protection Technology Co.,Ltd. |
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| CP03 | Change of name, title or address |