CN205979741U - PBT device heat medium stove nitrogen oxide discharges control system - Google Patents
PBT device heat medium stove nitrogen oxide discharges control system Download PDFInfo
- Publication number
- CN205979741U CN205979741U CN201620909157.0U CN201620909157U CN205979741U CN 205979741 U CN205979741 U CN 205979741U CN 201620909157 U CN201620909157 U CN 201620909157U CN 205979741 U CN205979741 U CN 205979741U
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- CN
- China
- Prior art keywords
- air
- control system
- nitrogen oxide
- air preheater
- emission control
- 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.)
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- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 238000002485 combustion reaction Methods 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 239000000428 dust Substances 0.000 claims abstract 2
- 238000005276 aerator Methods 0.000 claims description 15
- 239000002918 waste heat Substances 0.000 claims description 14
- 238000010410 dusting Methods 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 9
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 6
- 239000011737 fluorine Substances 0.000 claims description 6
- 229910052731 fluorine Inorganic materials 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 229920002313 fluoropolymer Polymers 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 4
- 239000001301 oxygen Substances 0.000 abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000012824 chemical production Methods 0.000 abstract description 2
- 238000006477 desulfuration reaction Methods 0.000 abstract description 2
- 230000023556 desulfurization Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000009510 drug design Methods 0.000 abstract 1
- 238000005457 optimization Methods 0.000 abstract 1
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 8
- 239000000446 fuel Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007953 anoxia Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003250 coal slurry Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model relates to a chemical production technology design field discloses PBT device heat medium stove nitrogen oxide discharges control system, included combustor, burning compartment, exhaust -heat boiler, air heater subassembly, air -blower, secondary air -blower, sack cleaner, water film desulfurization dust remover and a draught fan, through the configuration optimization design, adopts air -blower with the secondary air -blower cooperation use, can adjust oxygen concentration and reduction combustion temperature in the burning compartment, the staged combustion of realization air, the effectual formation that suppresses NOX, through the heat medium stove nitrogen oxide of rational design emission control system, simple structure, it is convenient to optimize, and the technological improvement who is suitable for the traditional mode of production line upgrades.
Description
Technical field
This utility model is related to chemical production processes design field, particularly PBT device hot Media Oven discharged nitrous oxides control
System processed.
Background technology
NO in commercial productionXMajor part comes from high-temperature heating process, such as petrochemical industry, iron and steel, glass, pottery, metallurgy
Etc. the tubular heater of industry, forging kiln furnace, melt kiln etc..Abroad begin to from the 1950's for burned
NO in journeyXBecome the research of mechanism and control method, have developed low NO at the end of the seventies and the beginning of the eightiesXThe technology such as burner, 90
Since age, original technology is constantly improved.Since 21 century, such as high-temperature and low-oxygen combustion, pulsation supply fuel combustion, oxygen-enriched combustion
The new techniques such as burning are continuously developed out.With the continuous development of e measurement technology and Fluid Mechanics Computation, people to fractional combustion,
The low NO such as swirl flow combustionXCombustion technology have deeper into understanding.
Control discharged nitrous oxides measure can be divided into two classes：One class is to control NO in fuel combustion processXGeneration；Separately
One class is the NO having generatedXCertain means is taken to be reduced into N2, thus reducing NO in flue gasXContent.Due to denitrating flue gas
High cost, therefore when having to using equipment for denitrifying flue gas for meeting discharge standard, often first adopts low NOXBurning skill
Art, to reduce operating cost.Industrial Stoves mostly adopt diffusion combustion mode, NOXGeneration not only with combustion chemical kinetics
Factor is relevant, and closely coupled with turbulent mixing process, and this makes to NOXThe understanding of generating process is more difficult.
Content of the invention
The purpose of this utility model is to provide PBT device hot Media Oven nitrogen oxide emission control system, to meet reduction
PBT hot Media Oven discharged nitrous oxides, reduce the pollution to environment for the discharged nitrous oxides, reduce the consumption of follow-up denitrification apparatus.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the utility model discloses PBT device hot Media Oven nitrogen oxygen
Compound emission control systems, include burner, combustion compartment, waste heat boiler, air preheat device assembly, aerator, two
Secondary aerator, sack cleaner, water desulfurizing-dusting device and air-introduced machine, burner is installed on outside combustion compartment, and both sides respectively set
It is equipped with exhaust gas inlet and waste liquid import, combustion compartment is removed with waste heat boiler, sack cleaner and moisture film desulfurization by flue
Dirt device is connected, and water desulfurizing-dusting device is connected with air-introduced machine, and the side that aerator is installed on air preheat device assembly passes through
Air preheat device assembly is connected by admission line with burner, and post-blast machine is installed on the side of combustion compartment.
Wherein, air preheat device assembly includes main air preheater and secondary air preheater, and main air preheats
Device and secondary air preheater are parallel with one another, are installed on the lower section of waste heat boiler.
Preferably, an aerator and post-blast machine are fluorine and mould blower fan, and fluorine is moulded blower fan and adopted Fluorine-lined in metal shell
Plastics, flow passage components are all using Fluoroine-containing plastic alloy manufacture.
Wherein, sack cleaner includes dedusting filtering bag, upper box body, middle part casing, lower part box, deashing mechanism and row
Grey mechanism, dedusting filtering bag and deashing mechanism are installed in upper box body, and upper box body, middle part casing and lower part box are from top to bottom
Combination connects, and ash exhauster is installed on below lower part box.
This utility model has the advantages that：
1. this utility model passes through Optimal Structure Designing, is used cooperatively using an aerator and post-blast machine, permissible
Adjust the oxygen concentration in combustion compartment and reduce ignition temperature, realize the sectional combustion of air, effectively inhibit NOXLife
Become.
2. through the hot Media Oven nitrogen oxide emission control system of appropriate design, decrease the generation of nitrogen oxides, by nitrogen
Emissions of oxides is from 600mg/m3It is reduced to 300/m3Hereinafter, increase waste heat boiler utilization rate of waste heat, decrease outer tube steam
Consume, decrease the consumption of follow-up denitrification apparatus, be suitable for the technological improvement upgrading of conventional production lines.
Brief description
Fig. 1 is structural representation of the present utility model.
Primary clustering symbol description:
1：Burner, 2：Combustion compartment, 3：Flue, 4：Waste heat boiler, 5：Main air preheater, 6：Secondary air
Preheater, 7：Admission line, 8：Aerator, 9：Post-blast machine, 10：Sack cleaner, 11：Water desulfurizing-dusting device,
12：Air-introduced machine.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.
As shown in figure 1, the utility model discloses PBT device hot Media Oven nitrogen oxide emission control system, including combustion
Burner 1, combustion compartment 2, waste heat boiler 4, air preheat device assembly, aerator 8, post-blast machine 9, a sack cleaner
10th, water desulfurizing-dusting device 11 and air-introduced machine 12, burner 1 is installed on outside combustion compartment 2, and both sides are each provided with exhaust gas inlet
With waste liquid import, combustion compartment 2 is by flue 3 and waste heat boiler 4, sack cleaner 10 and water desulfurizing-dusting device 11 phase
Even, water desulfurizing-dusting device 11 is connected with air-introduced machine 12, the side that aerator 8 is installed on air preheat device assembly pass through into
Air preheat device assembly is connected by feed channel 7 with burner 1, and post-blast machine 9 is installed on the side of combustion compartment 2.
Air preheat device assembly includes main air preheater 5 and secondary air preheater 6, main air preheater 5
Parallel with one another with secondary air preheater 6, it is installed on the lower section of waste heat boiler 4.
Aerator 8 and post-blast machine 9 are fluorine and mould blower fan, and fluorine is moulded blower fan and adopted metal shell inner lining fluoroplastics,
Flow passage components are all using Fluoroine-containing plastic alloy manufacture.
Sack cleaner 10 includes dedusting filtering bag, upper box body, middle part casing, lower part box, deashing mechanism and ash discharge
Mechanism, dedusting filtering bag and deashing mechanism are installed in upper box body, upper box body, middle part casing and lower part box group from top to bottom
Close and connect, ash exhauster is installed on below lower part box, and wherein, the blowback air of sack cleaner 10 is by special compressed air hose
There is provided, water desulfurizing-dusting device 11 no blowback air, only setting spray pipe.
Operation principle：
Combustion air in combustion compartment 2 mostlys come from an aerator 8 after the heating of air preheat device assembly
Hot blast, and the cold wind of post-blast machine 9.
By turning down the smoke regulating valve of waste heat boiler 4, increase the flow that high-temperature flue gas pass through waste heat boiler 4, increase remaining
Steam production in heat boiler 4, aerator 8 of reduction enters the hot blast temperature of burner 1 after air preheat device assembly
Degree.By reducing hot blast temperature, it is possible to reduce thermal NOXWith fuel type NOXProduce.
By opening post-blast machine 9, make the cold wind entrance combustion compartment 2 of in the air combustion-supporting, form combustion compartment 2 bottom
Fluidisation, reduce ignition temperature.
Due to the lack of air of an aerator 8 infeed combustion compartment 2, define the fuel-rich of anoxia in burner 1 region
Material burning.Water-coal-slurry is burnt in reducing atmosphere, and burning generates CO, and the nitrogen in fuel will decompose generation HN, HCH, CN, NH3
And NH2Deng they are mutually compound or will have NOXReduction decomposition, thus inhibit fuel NOXGeneration.Fuel-rich combustion simultaneously
Reduce the peak temperature of flame, thus also reducing heating power NOXGrowing amount.Post-blast machine 9 cold wind is from combustion compartment 2
Portion and rear portion entrance combustion compartment 2 are combustion-supporting, by imperfect combustion cool water mixture burning totally, though now air capacity is many, by
Relatively low in flame temperature, so NO can also be suppressed in post-blast machine 9 combustion zoneXGeneration.
The above, only this utility model preferably specific embodiment, but protection domain of the present utility model is not
It is confined to this, any those familiar with the art, in the technical scope that this utility model discloses, can readily occur in
Change or replacement, all should cover within protection domain of the present utility model.
Claims (4)
1.PBT device hot Media Oven nitrogen oxide emission control system is it is characterised in that include burner, combustion compartment, waste heat
Boiler, air preheat device assembly, aerator, post-blast machine, sack cleaner, water desulfurizing-dusting device and air-introduced machine,
Described burner is installed on outside combustion compartment, and both sides are each provided with exhaust gas inlet and waste liquid import, described combustion compartment
Be connected with waste heat boiler, sack cleaner and water desulfurizing-dusting device by flue, described water desulfurizing-dusting device with
Air-introduced machine is connected, and the side that a described aerator is installed on air preheat device assembly passes through admission line by air preheater
Assembly is connected with burner, and described post-blast machine is installed on the side of combustion compartment.
2. PBT device hot Media Oven nitrogen oxide emission control system as claimed in claim 1 it is characterised in that：Described sky
Air preheater assembly includes main air preheater and secondary air preheater, described main air preheater and two grades of skies
Air preheater is parallel with one another, is installed on the lower section of waste heat boiler.
3. PBT device hot Media Oven nitrogen oxide emission control system as claimed in claim 1 or 2 it is characterised in that：Described
Aerator and post-blast machine are fluorine and mould blower fan, and described fluorine is moulded blower fan and adopted metal shell inner lining fluoroplastics, excessively stream
Part is all using Fluoroine-containing plastic alloy manufacture.
4. PBT device hot Media Oven nitrogen oxide emission control system as claimed in claim 3 it is characterised in that：Described cloth
Bag dust collector includes dedusting filtering bag, upper box body, middle part casing, lower part box, deashing mechanism and ash exhauster, and described removes
Dirt filter bag and deashing mechanism are installed in upper box body, described upper box body, middle part casing and lower part box group from top to bottom
Close and connect, described ash exhauster is installed on below lower part box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620909157.0U CN205979741U (en) | 2016-08-22 | 2016-08-22 | PBT device heat medium stove nitrogen oxide discharges control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620909157.0U CN205979741U (en) | 2016-08-22 | 2016-08-22 | PBT device heat medium stove nitrogen oxide discharges control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205979741U true CN205979741U (en) | 2017-02-22 |
Family
ID=58031892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620909157.0U Active CN205979741U (en) | 2016-08-22 | 2016-08-22 | PBT device heat medium stove nitrogen oxide discharges control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205979741U (en) |
-
2016
- 2016-08-22 CN CN201620909157.0U patent/CN205979741U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |