CN109323279A - Burner is directly heated in a kind of denitrating flue gas pipeline - Google Patents
Burner is directly heated in a kind of denitrating flue gas pipeline Download PDFInfo
- Publication number
- CN109323279A CN109323279A CN201811172504.6A CN201811172504A CN109323279A CN 109323279 A CN109323279 A CN 109323279A CN 201811172504 A CN201811172504 A CN 201811172504A CN 109323279 A CN109323279 A CN 109323279A
- Authority
- CN
- China
- Prior art keywords
- guide pipe
- air
- air guide
- flue
- mixing chamber
- 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.)
- Pending
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 239000003546 flue gas Substances 0.000 title claims abstract description 31
- 239000000567 combustion gas Substances 0.000 claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 22
- 238000002156 mixing Methods 0.000 claims abstract description 19
- 239000000446 fuel Substances 0.000 claims abstract description 6
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/08—Arrangements of devices for treating smoke or fumes of heaters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/70—Baffles or like flow-disturbing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/06—Polluted air
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
Abstract
The invention discloses directly heat burner in a kind of denitrating flue gas pipeline, the air guide pipe in flue is protruded into including one end, the one end of air guide pipe outside flue is equipped with the air intlet vertical with air guide pipe direction, one end that air guide pipe is located in flue is connected with mixing chamber, air secondary spiral board is equipped between air guide pipe and mixing chamber, the inside of air guide pipe is equipped with spiral board of air, the direction where inside center line along air guide pipe is equipped with combustion gas guide pipe, one end of combustion gas guide pipe is equipped with fuel inlet, the other end of combustion gas guide pipe is connected with combustion gas in turn and shunts gas bag and exhaust gas nozzle, mixing chamber is connect with burning torch and flame detector respectively by two casings, two casings and air guide pipe pass through flange and are fixedly connected with flue outer wall.Beneficial effects of the present invention: the burner has many advantages, such as that compact-sized, easy to operate and high temperature resistant, corrosion-resistant, heat resistanceheat resistant shock resistance is good and is not afraid of flue negative pressure.
Description
Technical field
The present invention relates to fume treatment technical field, relate in particular to directly heat combustion in a kind of denitrating flue gas pipeline
Burner.
Background technique
Environmental protection is the problem of heat power engineering field is most paid attention to, and the emission problem of nitrogen oxides is even more what national environmental protection worked
Emphasis.Reduce primary work of the discharge of nitrogen oxides and greenhouse gases as all trades and professions.Industrial and mining enterprises need denitration process
Flue-gas temperature it is lower, (general 280 ~ 380 DEG C) are not reached requirement, so needing to heat flue gas.Existing heating side
Formula mainly uses hot-blast stove to heat up flue gas, and this mode needs the high warm flue gas for generating hot-blast stove to pass through pipeline
Into low-temperature flue gas to be heated, not only investment is big, and long construction period, thermal loss is big, and has very high requirement to place, limit
The use of denitration technology is made.And existing burner cannot be directly installed on because of negative pressure height, temperature height in flue at present
Flue gas is heated on flue, heating process is cumbersome, be easy to cause leakage pollution environment.
Summary of the invention
For the problems in the relevant technologies, the present invention proposes to directly heat burner in a kind of denitrating flue gas pipeline, directly
Connect and be mounted in flue, can negative-pressure firing and high temperature resistant, can not only greatly improve economic benefit, ring can also be reduced
Border pollution, generates significant social benefit.
In order to achieve the above technical purposes, the technical scheme is that it is such:
Burner is directly heated in a kind of denitrating flue gas pipeline, protrudes into the air guide pipe in flue, the sky including one end
The one end of gas guide pipe outside flue is equipped with the air intlet vertical with air guide pipe direction, air guide pipe position
It is connected in one end in flue with mixing chamber, air secondary spiral board is equipped between the air guide pipe and mixing chamber, it is described
The inside of air guide pipe is equipped with spiral board of air, is equipped with along the direction where the inside center line of the air guide pipe
One end of combustion gas guide pipe, the combustion gas guide pipe is equipped with fuel inlet, and the other end of the combustion gas guide pipe is connected in turn
Combustion gas shunts gas bag and exhaust gas nozzle, and the jet end of the air secondary spiral board and the exhaust gas nozzle is located at same level position
It sets, the mixing chamber is connect with burning torch and flame detector respectively by two casings, two described sleeve pipes and air guide pipe
It is fixedly connected by flange with flue outer wall.
Further, the outlet of the mixing chamber is provided with stable flame cover.
Further, multiple apertures are offered on the stable flame cover.
Further, the flange of the flue outer wall is equipped with flame-observing hole.
Further, the air guide pipe is equipped with one section of 90 degree of elbow, and 90 degree of elbows are located at air and once revolve
Between flowing plate, air secondary spiral board.
Further, the exhaust gas nozzle, air secondary spiral board, mixing chamber are using 310S stainless steel material.
Beneficial effects of the present invention: this burner is directly arranged in inside denitrating flue gas pipeline, is not needed in addition to do and be burnt
Room or heating furnace directly burn in low temperature flue flue gas a fluid stream, improve low-temperature flue gas temperature to be heated to SCR denitration reaction temperature
Section is spent, enters back into nitrogen oxides in SCR reactor recovered flue gas, energy conservation and environmental protection, while saving equipment cost.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural representation for directly heating burner in a kind of denitrating flue gas pipeline according to embodiments of the present invention
Figure；
Fig. 2 is to directly heat burner in a kind of denitrating flue gas pipeline according to embodiments of the present invention to install in flue
Cross-sectional view；
Fig. 3 is the A direction view of Fig. 2.
In figure:
1, combustion gas guide pipe；2, air guide pipe；3, combustion gas shunts gas bag；4, exhaust gas nozzle；5, spiral board of air；6, empty
Gas swirl flow plate；7, mixing chamber；8, stable flame cover；9, burning torch；10, flame detector；11, flame-observing hole；12, flange；13, it covers
Pipe；14, flue；15, air intlet；16, fuel inlet.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art's every other embodiment obtained belong to what the present invention protected
Range.
As shown in Figure 1-3, directly heating burner in a kind of denitrating flue gas pipeline, protruded into flue 14 including one end
Air guide pipe 2, the one end of the air guide pipe 2 outside flue 14 are equipped with the sky vertical with 2 direction of air guide pipe
Gas import 15, one end that the air guide pipe 2 is located in flue 14 are connected with mixing chamber 7, the air guide pipe 2 with mix
Air secondary spiral board 6 is equipped between room 7, the inside of the air guide pipe 2 is equipped with spiral board 5 of air, along the sky
Direction where the inside center line of gas guide pipe 2 is equipped with combustion gas guide pipe 1, and one end of the combustion gas guide pipe 1 is equipped with fuel
Import 16, the other end of the combustion gas guide pipe 1 are connected with combustion gas in turn and shunt gas bag 3 and exhaust gas nozzle 4, the air secondary
The jet end of spiral board 6 and the exhaust gas nozzle 4 is located at the same horizontal position, and the mixing chamber 7 is distinguished by two casings 13
Connect with burning torch 9 and flame detector 10, installation flame detector 10 can in real time by infrared on-line checking flame situation, two
Described sleeve pipe 13 and air guide pipe 2 are fixedly connected by flange 12 with 14 outer wall of flue, the fixed entire burner of support.
In the present embodiment, the outlet of the mixing chamber 7 is provided with stable flame cover 8, offers on the stable flame cover 8 multiple small
Hole, burner burn in flue, improve flue-gas temperature, and by the heat transfer of combustion product to low-temperature flue gas, low-temperature flue gas
Has the function of cooling protection to mixing chamber 7, stable flame cover 8.
In the present embodiment, the flange 12 of 14 outer wall of flue is equipped with flame-observing hole 11, can directly pass through peephole reality
When dynamic knowledge burner combustion case.
In the present embodiment, the air guide pipe 2 is equipped with one section of 90 degree of elbow, and 90 degree of elbows are located at air one
Between secondary spiral board 5, air secondary spiral board 6.
In the present embodiment, the exhaust gas nozzle 4, air secondary spiral board 6, mixing chamber 7 are using resistant to high temperature
310S stainless steel material.
In the present embodiment, the combustion gas guide pipe 1 and combustion gas in air guide pipe 2 and air pass through automatic ratio tune
Amount of restriction installs temperature point feedback control in low temperature flue, it is ensured that flue-gas temperature is stablized, and overtemperature is prevented.
Above-mentioned technical proposal is further understood for convenience, now its specifically used principle is described in detail:
Fuel enters combustion gas by combustion gas guide pipe 1 and shunts gas bag 3, and air passes through air guide pipe 2, air spiral board 5
It with air secondary spiral board 6, is mixed in mixing chamber 7, gaseous mixture meets 9 open fire after-combustion of burning torch, and combustion product is in stable flame cover 8
It is gradually mixed with by the low-temperature flue gas of aperture, and improves the low-temperature flue gas temperature persistently to circulate.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. directly heating burner in a kind of denitrating flue gas pipeline, which is characterized in that protruded into flue (14) including one end
Air guide pipe (2), the air guide pipe (2) are equipped with and air guide pipe (2) direction in the one end of flue (14) outside
Vertical air intlet (15), the air guide pipe (2) is located at one end in flue (14) and is connected with mixing chamber (7), described
Air secondary spiral board (6) are equipped between air guide pipe (2) and mixing chamber (7), the inside of the air guide pipe (2) is equipped with
Spiral board (5) of air is equipped with combustion gas guide pipe (1) along the direction where the inside center line of the air guide pipe (2),
One end of the combustion gas guide pipe (1) is equipped with fuel inlet (16), and the other end of the combustion gas guide pipe (1) is connected with combustion in turn
Gas shunts gas bag (3) and exhaust gas nozzle (4), the air secondary spiral board (6) and the jet end of the exhaust gas nozzle (4) are located at
The same horizontal position, the mixing chamber (7) are connected with burning torch (9) and flame detector (10) respectively by two casings (13)
It connects, two described sleeve pipes (13) and air guide pipe (2) are fixedly connected by flange (12) with flue (14) outer wall.
2. directly heating burner in a kind of denitrating flue gas pipeline according to claim 1, which is characterized in that described mixed
The outlet for closing room (7) is provided with stable flame cover (8).
3. directly heating burner in a kind of denitrating flue gas pipeline according to claim 2, which is characterized in that described steady
Flame cover offers multiple apertures on (8).
4. directly heating burner in a kind of denitrating flue gas pipeline according to claim 1, which is characterized in that the cigarette
The flange (12) of road (14) outer wall is equipped with flame-observing hole (11).
5. directly heating burner in a kind of denitrating flue gas pipeline according to claim 1, which is characterized in that the sky
Gas guide pipe (2) is equipped with one section of 90 degree of elbow, and 90 degree of elbows are located at air spiral board (5), an air secondary eddy flow
Between plate (6).
6. directly heating burner in a kind of denitrating flue gas pipeline according to claim 1, which is characterized in that the combustion
Gas blowout pipe (4), air secondary spiral board (6), mixing chamber (7) are using 310S stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172504.6A CN109323279A (en) | 2018-10-09 | 2018-10-09 | Burner is directly heated in a kind of denitrating flue gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172504.6A CN109323279A (en) | 2018-10-09 | 2018-10-09 | Burner is directly heated in a kind of denitrating flue gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109323279A true CN109323279A (en) | 2019-02-12 |
Family
ID=65261637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811172504.6A Pending CN109323279A (en) | 2018-10-09 | 2018-10-09 | Burner is directly heated in a kind of denitrating flue gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109323279A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899784A (en) * | 2019-03-06 | 2019-06-18 | 北京神科博斯热能工程技术有限公司 | A kind of coke oven gas burner |
| CN112304102A (en) * | 2020-09-07 | 2021-02-02 | 柳州钢铁股份有限公司 | Method and device for recycling CO in sintering pellet waste gas |
| CN113339799A (en) * | 2021-07-08 | 2021-09-03 | 华帝股份有限公司 | Adjustable flame stabilizing device for holy fire pan |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201377796Y (en) * | 2009-04-15 | 2010-01-06 | 山东建筑大学 | Intelligent multiple-stage loading premixed burner |
| CN201715513U (en) * | 2010-07-02 | 2011-01-19 | 重庆赛迪工业炉有限公司 | Inferior high velocity burner |
| CN205592954U (en) * | 2016-05-06 | 2016-09-21 | 北京佳德昌科技有限责任公司 | One -level gas injection type low NOx burner |
| CN106090907A (en) * | 2016-06-12 | 2016-11-09 | 北京航空航天大学 | The strong swirl flame diffusion burner of a kind of premix |
| CN106287779A (en) * | 2015-05-20 | 2017-01-04 | 张龙 | A kind of combustion type heater device for flue gas desulfurization and denitrification system |
| CN205939136U (en) * | 2016-08-26 | 2017-02-08 | 中能服能源科技股份有限公司 | Novel low nitrogen oxide burner structure |
| CN107062217A (en) * | 2017-01-18 | 2017-08-18 | 长沙理工大学 | A kind of low-quality gas burner（Bluff body） |
| CN209213903U (en) * | 2018-10-09 | 2019-08-06 | 岳阳远东节能设备有限公司 | Burner is directly heated in a kind of denitrating flue gas pipeline |
-
2018
- 2018-10-09 CN CN201811172504.6A patent/CN109323279A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201377796Y (en) * | 2009-04-15 | 2010-01-06 | 山东建筑大学 | Intelligent multiple-stage loading premixed burner |
| CN201715513U (en) * | 2010-07-02 | 2011-01-19 | 重庆赛迪工业炉有限公司 | Inferior high velocity burner |
| CN106287779A (en) * | 2015-05-20 | 2017-01-04 | 张龙 | A kind of combustion type heater device for flue gas desulfurization and denitrification system |
| CN205592954U (en) * | 2016-05-06 | 2016-09-21 | 北京佳德昌科技有限责任公司 | One -level gas injection type low NOx burner |
| CN106090907A (en) * | 2016-06-12 | 2016-11-09 | 北京航空航天大学 | The strong swirl flame diffusion burner of a kind of premix |
| CN205939136U (en) * | 2016-08-26 | 2017-02-08 | 中能服能源科技股份有限公司 | Novel low nitrogen oxide burner structure |
| CN107062217A (en) * | 2017-01-18 | 2017-08-18 | 长沙理工大学 | A kind of low-quality gas burner（Bluff body） |
| CN209213903U (en) * | 2018-10-09 | 2019-08-06 | 岳阳远东节能设备有限公司 | Burner is directly heated in a kind of denitrating flue gas pipeline |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899784A (en) * | 2019-03-06 | 2019-06-18 | 北京神科博斯热能工程技术有限公司 | A kind of coke oven gas burner |
| CN112304102A (en) * | 2020-09-07 | 2021-02-02 | 柳州钢铁股份有限公司 | Method and device for recycling CO in sintering pellet waste gas |
| CN113339799A (en) * | 2021-07-08 | 2021-09-03 | 华帝股份有限公司 | Adjustable flame stabilizing device for holy fire pan |
| CN113339799B (en) * | 2021-07-08 | 2023-05-12 | 华帝股份有限公司 | Adjustable flame stabilizing device for holy fire basin |
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