CN206660946U - A kind of SNCR denitration device - Google Patents
A kind of SNCR denitration device Download PDFInfo
- Publication number
- CN206660946U CN206660946U CN201720359968.2U CN201720359968U CN206660946U CN 206660946 U CN206660946 U CN 206660946U CN 201720359968 U CN201720359968 U CN 201720359968U CN 206660946 U CN206660946 U CN 206660946U
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- CN
- China
- Prior art keywords
- module
- denitration device
- sncr denitration
- boiler
- spray gun
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- 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.)
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- 239000007921 spray Substances 0.000 claims abstract description 30
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 22
- 239000000243 solution Substances 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000010790 dilution Methods 0.000 claims description 10
- 239000012895 dilution Substances 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 5
- 230000006837 decompression Effects 0.000 abstract description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 8
- 239000004202 carbamide Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
A kind of SNCR denitration device is the utility model is related to, belongs to gas denitrifying technology field.A kind of SNCR denitration device, including：Boiler and spray gun, the spray gun is arranged on boiler wall, and the nozzle of spray gun is located in the stove of boiler；The SNCR denitration device also includes：Reductant solution storage tank, it connects metering module A entrance by flow pump；Superheat steam pipeline, it connects metering module B entrance through pressure-reducing valve；The outlet of the metering module A and metering module B connect distribute module A and distribute module B entrance respectively；Through the distribute module A, after superheated steam is atomized to reductant solution, sprayed into by the spray gun in boiler.The utility model uses superheated steam as atomizing medium, after decompression, by pressure stability in suitable value range, it is ensured that the jet velocity of reducing agent, add eject momentum.
Description
Technical field
A kind of SNCR denitration device is the utility model is related to, belongs to gas denitrifying technology field.
Background technology
SNCR denitration refers to, in the case where not needing catalyst, amino reductive be sprayed into burner hearth using spray gun, rapidly
After decomposition, with the NO in flue gasxReaction produces N2And H2O；And the atomizing effect of spray gun determines the height of this SNCR denitration efficiency.
The effect of atomizing medium is to strengthen the mixing of reductant solution and inner flue gas of the stove, and improves reducing agent jet velocity.At present, one
As using 0.6~0.8MPa station-service compressed air as atomizing medium.Current denitration engineering, often installs SNCR denitration additional
System, when the spray gun of SNCR denitration uses station-service compressed air, air supply deficiency often be present, it is necessary to increase air compressor machine
System；Either compressed air inferior quality, results in blockage to nozzle；Either compressed air pressure is smaller, causes atomization to imitate
Situations such as fruit is poor occurs.
Utility model content
To solve the above problems, the purpose of this utility model is to provide a kind of SNCR denitration device, using superheated steam
As atomizing medium.
The purpose of this utility model is achieved through the following technical solutions：
A kind of SNCR denitration device, including：Boiler and spray gun, the spray gun are arranged on boiler wall, and the nozzle of spray gun
In the stove of boiler；The SNCR denitration device also includes：
Reductant solution storage tank, it connects metering module A entrance by flow pump；
Superheat steam pipeline, it connects metering module B entrance through pressure-reducing valve；
The outlet of the metering module A and metering module B connect distribute module A and distribute module B entrance respectively；Through institute
Distribute module A is stated, after superheated steam is atomized to reductant solution, is sprayed into by the spray gun in boiler.
Further, the flow pump is high flow pump.
Further, the outlet of the metering module A is connected to reductant solution storage tank, surplus reducing agent by valve A
Solution is back to reductant solution storage tank.
Further, in addition to dilution water module, water, the outlet connection of dilution water module are filled in the dilution water module
Metering module A entrance.
Further, distribute module B entrance also accesses cooling water, through the distribute module B, reductant solution, overheat
Steam is inputted in boiler respectively with cooling water.
Further, the bottom of the boiler is burner, and the nozzle of the spray gun is located at the middle and upper part of boiler.
Further, the temperature in the boiler is 850 DEG C~1100 DEG C.
Further, the superheat steam pipeline is provided with pressure gauge and regulating valve.
Further, the flow pump, metering module A, valve A, metering module B, distribute module A, distribute module B, spray
Rifle, pressure-reducing valve, pressure gauge and regulating valve access automaton, and are acted under the control of automaton.
The beneficial effects of the utility model are：
The utility model uses superheated steam as atomizing medium, after decompression, by pressure stability in suitable scope
Value, it is ensured that the jet velocity of reducing agent, add eject momentum.In addition, superheated steam, for power plant, vapour source is more filled
Foot, and vapour source quality is preferable, the problems such as will not causing the blocking of nozzle.
Brief description of the drawings
Fig. 1 is SNCR denitration apparatus structure schematic diagram described in the utility model；
Wherein, 1- reductant solutions storage tank, 2- flow pumps, 3- metering modules A, 4- valve A, 5- dilution water module, 6- meters
Measure module B, 7- distribute module A, 8- distribute module B, 9- boiler, 10- spray guns, 11- pressure-reducing valves, 12- superheat steam pipelines.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining this
Utility model, it is not used to limit the utility model.
A kind of as shown in figure 1, SNCR denitration device, it is characterised in that including：Boiler 9 and spray gun 10, the spray gun 10 are pacified
Mounted in boiler wall, and the nozzle of spray gun 10 is located in the stove of boiler 9；The SNCR denitration device also includes：
Reductant solution storage tank 1, it connects metering module A3 entrance by high flow pump 2；
Superheat steam pipeline 12, it connects metering module B6 entrance through pressure-reducing valve 11；
The outlet of the metering module A3 and metering module B6 connect distribute module A7 and distribute module B8 entrance respectively；
Through the distribute module A7, after superheated steam is atomized to reductant solution, sprayed into by the spray gun 10 in boiler 9.
SNCR denitration device described in the utility model also includes dilution water module 5, and water is filled in the dilution water module 5,
The outlet connection metering module A3 of dilution water module 5 entrance.The outlet of the metering module A3 is also connected to by valve A4
Reductant solution storage tank 1.
Distribute module B8 entrance also accesses cooling water, through the distribute module B8, reductant solution, superheated steam with it is cold
But water inputs in boiler 9 respectively.
The bottom of the boiler 9 is burner, and the nozzle of the spray gun 10 is located at the middle and upper part of boiler 9.
Temperature in the boiler is 850 DEG C~1100 DEG C.
The superheat steam pipeline 12 is provided with pressure gauge and regulating valve.
The flow pump, metering module A, valve A, metering module B, distribute module A, distribute module B, spray gun, pressure-reducing valve,
Pressure gauge and regulating valve access automaton, and are acted under the control of automaton.
The utility model institute reductant solution is urea liquid, and the technological process of the utility model operation is packed urea
After grain is by artificial broken bag, urea granules are delivered in dissolving tank with bucket elevator, dry urea is dissolved into 50% with demineralized water
The urea liquid of mass concentration, urea liquid storage tank is pumped into by urea liquid feed；Then by metering module A after,
The dilute urea solution of concentration about 8%~15% is diluted into, entering spray gun by distribute module A sprays into boiler furnace, with flue gas
Carry out chemical reaction and remove NOx。
The utility model can provide reliable and stable SNCR denitrification spray gun atomizing medium, reduce investment, reduce spray gun and block
Risk.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (9)
- A kind of 1. SNCR denitration device, it is characterised in that including：Boiler (9) and spray gun (10), the spray gun (10) are arranged on pot Stove furnace wall, and the nozzle of spray gun (10) is located in the stove of boiler (9)；The SNCR denitration device also includes：Reductant solution storage tank (1), it connects metering module A (3) entrance by flow pump (2)；Superheat steam pipeline (12), it connects metering module B (6) entrance through pressure-reducing valve (11)；The metering module A (3) and metering module B (6) outlet connect distribute module A's (7) and distribute module B (8) respectively Entrance；Through the distribute module A (7), after superheated steam is atomized to reductant solution, pot is sprayed into by the spray gun (10) In stove (9).
- 2. SNCR denitration device according to claim 1, it is characterised in that the flow pump (2) is high flow pump.
- 3. SNCR denitration device according to claim 1, it is characterised in that valve is passed through in the outlet of the metering module A (3) Door A (4) is connected to reductant solution storage tank (1).
- 4. SNCR denitration device according to claim 1, it is characterised in that also including dilution water module (5), the dilution Water, the outlet connection metering module A (3) of dilution water module (5) entrance are filled in water module (5).
- 5. SNCR denitration device according to claim 1, it is characterised in that distribute module B (8) entrance also accesses cooling Water, through the distribute module B (8), reductant solution, superheated steam and cooling water input in boiler (9) respectively.
- 6. SNCR denitration device according to claim 1, it is characterised in that the bottom of the boiler (9) is burner, institute The nozzle for stating spray gun (10) is located at the middle and upper part of boiler (9).
- 7. SNCR denitration device according to claim 1, it is characterised in that temperature in the boiler for 850 DEG C~ 1100℃。
- 8. SNCR denitration device according to claim 1, it is characterised in that the superheat steam pipeline (12) is provided with pressure Power table and regulating valve.
- 9. the SNCR denitration device according to any one of the claims, it is characterised in that the flow pump, metering module A, valve A, metering module B, distribute module A, distribute module B, spray gun, pressure-reducing valve, pressure gauge and regulating valve access automatic control Device processed, and acted under the control of automaton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720359968.2U CN206660946U (en) | 2017-04-07 | 2017-04-07 | A kind of SNCR denitration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720359968.2U CN206660946U (en) | 2017-04-07 | 2017-04-07 | A kind of SNCR denitration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206660946U true CN206660946U (en) | 2017-11-24 |
Family
ID=60366868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720359968.2U Expired - Fee Related CN206660946U (en) | 2017-04-07 | 2017-04-07 | A kind of SNCR denitration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206660946U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051169A (en) * | 2017-04-07 | 2017-08-18 | 大唐环境产业集团股份有限公司 | A kind of SNCR denitration device |
| CN108126498A (en) * | 2017-12-29 | 2018-06-08 | 黑龙江昱泰重型机器制造有限公司 | A kind of efficient SNCR denitration device and out of stock method |
-
2017
- 2017-04-07 CN CN201720359968.2U patent/CN206660946U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051169A (en) * | 2017-04-07 | 2017-08-18 | 大唐环境产业集团股份有限公司 | A kind of SNCR denitration device |
| CN108126498A (en) * | 2017-12-29 | 2018-06-08 | 黑龙江昱泰重型机器制造有限公司 | A kind of efficient SNCR denitration device and out of stock method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171124 |
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| CF01 | Termination of patent right due to non-payment of annual fee |