CN108050515A - A kind of flat ultralow NO of attached wall flamexGas burner - Google Patents
A kind of flat ultralow NO of attached wall flamexGas burner Download PDFInfo
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- CN108050515A CN108050515A CN201810034898.2A CN201810034898A CN108050515A CN 108050515 A CN108050515 A CN 108050515A CN 201810034898 A CN201810034898 A CN 201810034898A CN 108050515 A CN108050515 A CN 108050515A
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 47
- 239000011449 brick Substances 0.000 claims abstract description 39
- 238000002347 injection Methods 0.000 claims abstract description 19
- 239000007924 injection Substances 0.000 claims abstract description 19
- 230000033228 biological regulation Effects 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims description 42
- 239000002184 metal Substances 0.000 claims description 36
- 229910052751 metal Inorganic materials 0.000 claims description 36
- 238000007789 sealing Methods 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 5
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 239000008397 galvanized steel Substances 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 5
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 4
- 239000011805 ball Substances 0.000 claims 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 2
- 239000010931 gold Substances 0.000 claims 2
- 229910052737 gold Inorganic materials 0.000 claims 2
- 150000002739 metals Chemical class 0.000 claims 1
- 239000011806 microball Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 238000007689 inspection Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 144
- 239000000446 fuel Substances 0.000 description 23
- 239000000567 combustion gas Substances 0.000 description 16
- 238000004939 coking Methods 0.000 description 15
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 12
- 239000003546 flue gas Substances 0.000 description 12
- 230000005855 radiation Effects 0.000 description 10
- 230000009286 beneficial effect Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 239000002737 fuel gas Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 4
- 231100000719 pollutant Toxicity 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000010992 reflux Methods 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 230000004069 differentiation Effects 0.000 description 2
- 206010022000 influenza Diseases 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000008602 contraction Effects 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
- 238000010304 firing 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
- 238000013021 overheating Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 230000000191 radiation effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- 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
- F23D14/26—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
-
- 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
- F23D14/60—Devices for simultaneous control of gas and combustion air
-
- 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
-
- 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
- F23D14/84—Flame spreading or otherwise shaping
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention discloses a kind of flat ultralow NOx gas burners of attached wall flame, it sets in heating furnace, including burner body, altar lamp, outer gas gun part, interior gas gun part, threeway, brazier brick, air adjustment actuator, fiery inspection, fire hole, flame-observing hole, 2 ~ 4 outer gas gun grooves, two regulation ball valves.Brazier brick is hollow structure, and the top half of brazier brick slopes inwardly to form injection gas burning face, and injection gas burning face is up radial from root, and injection gas burning face includes three inclined-planes, and each adjacent bevel surfaces angle of inclination is different.The combustion air passage with being connected inside burner body is equipped in brazier brick, the level cross-sectionn of combustion air passage the latter half is rectangle, and three sides of combustion air passage top half are inclined outwardly, and a side slopes inwardly.The present invention reduce NOx emission, it is adaptable, be not easy de- fire, flame is partially short, attached wall effect is good, uniformity of temperature profile, low noise, environmental protection.
Description
Technical field
The present invention relates to petrochemical heating furnace burner apparatus, more particularly to a kind of ultralow NOx gases of flat attached wall flame
Burner.
Background technology
Traditional most coking wall-attached burner bad adaptability, easily de- fiery, flame is partially long, and attached wall effect is poor, and is firing
Expect to be difficult to adjust in multigroup nozzle allocation proportion of classification, be unfavorable for being given birth to according to the inhibition NOx after Operating condition adjustment burner rating
Produce effect.
In addition, the most of flame transition of traditional coking wall-attached burner are concentrated on furnace wall, cause in coking furnace furnace wall
Upper temperature distribution is non-uniform, ultimately results in the non-uniform temperature on Software, the easy coking in local overheating region is serious, together
When furnace wall liner body part damage, greatly shorten time between overhauls(TBO) and boiler tube service life.
State Environmental Protection Administration's issue《Petroleum refining industry pollutant emission standard》（GB 31570-2015）Regulation 2015
On July 1, in comes into effect, and NOx emission requirement in one type area is less than 100mg/m3.Domestic petroleum chemical heating furnace burner it is low
NOx emission combustion technology can only mostly ensure that NOx emission reaches 50ppm or so（80~120 mg/m3）, and external similar combustion
The discharge of burner product is up to 20 ~ 30ppm.The technological means of a variety of inhibition NOx are used on the burner, such as：Fuel-staged combustion,
Bias combustion, fuel fire again, flue gas recirculation etc., it can however not ensureing that NOx emission is centainly less than 100mg/m3Advanced effect
Fruit.There are the place that some are interfered with each other in structure application, when practical application, cannot carry out numerous technologies according to operating mode again
Adjustment, therefore, some products there is that flame rigidity is bad, and flame drifting burns phenomena such as insufficient, NOx emission index
It is extremely unstable.
The content of the invention
The technical problems to be solved by the invention be for the above-mentioned prior art to similar burner product NOx emission not
Up to standard, bad adaptability easily takes off the deficiencies of fire, flame are partially long, attached wall effect is poor, temperature distribution is non-uniform, provides a kind of NOx rows
Unconventional and unrestrained mark, adaptability is good, be not easy de- fire, flame is partially short, attached wall effect is good, the uniformity of temperature profile flat ultralow NOx of attached wall flame
Gas burner.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：
A kind of ultralow NOx gas burners of flat attached wall flame are set in heating furnace, including burner body, altar lamp, external combustion
Air gun part, interior gas gun part and threeway.
The top of the burner body is equipped with the brazier brick communicated therewith.The side of the burner body is equipped with difference
The air adjustment actuator and fire communicated therewith is examined.The fire pot is stretched into the bottom of one end of the altar lamp through the burner body
In brick.The bottom of the burner body is equipped with fire hole and flame-observing hole.
The brazier brick is hollow structure.The top half of the brazier brick slopes inwardly to form injection gas burning face.It is described
It is up radial from root to spray gas burning face, and the injection gas burning face includes three inclined-planes, each adjacent bevel surfaces angle of inclination
It is different.The combustion air passage with being connected inside the burner body is equipped in the brazier brick.
The level cross-sectionn of the combustion air passage the latter half is rectangle.The combustion air passage top half
Three sides be inclined outwardly, side slopes inwardly so that the vertical cross section of the combustion air passage top half
For inverted trapezoidal, and the opening of the combustion air passage top half is gradually expanded along the metope parallel direction of the heating furnace
Greatly.The lower section that the latter half of the brazier brick corresponds to the injection gas burning face is equipped with 2 ~ 4 outer gas gun grooves.
The outer gas gun part includes 2 ~ 4 outer gas guns, outer gas gun concetrated pipe, outer rifle metal connection flexible pipe.Institute
State two end faces closing of outer gas gun concetrated pipe.The outer gas gun concetrated pipe is arranged on the top plate of the burner body
Lower section.One outer gas gun corresponds to an outer gas gun groove.One end of every outer gas gun all passes through the combustion
The top plate of burner main body is put in corresponding outer gas gun groove, and the other end is all connected with the outer gas gun concetrated pipe
It is logical.The middle part of the outer gas gun concetrated pipe is connected by outer rifle metal connection flexible pipe with the threeway.
The interior gas gun part includes 2 ~ 4 interior gas guns, interior gas gun concetrated pipe, interior rifle metal connection flexible pipe.Institute
State two end faces closing of interior gas gun concetrated pipe.The interior gas gun concetrated pipe is fixed on the bottom of the burner body.
One end of every interior gas gun all puts in the middle part of the combustion air passage, the other end through the bottom of the burner body
It is connected with the interior gas gun concetrated pipe.Height at the top of the interior gas gun is less than the height at the top of the outer gas gun.
The middle part of the interior gas gun concetrated pipe is connected by the interior rifle metal connection flexible pipe with the threeway.
In one of the embodiments, the altar lamp include altar lamp nozzle, outer tube, inner sleeve, signal lever, two
Finely tune ball valve, two root long bright lamp metal connection flexible pipes, terminal box, remote control part.
The top of the inner sleeve is equipped with altar lamp nozzle.The outer tube is set in outside the inner sleeve.The signal
Bar is fixed on the inner sleeve tube hub.The terminal box connects with the signal lever and remote control split-phase.One described kept burning day and night
Space between lamp metal connection flexible pipe and the inner wall of the outer tube and the outer wall of inner sleeve is connected, and another described kept burning day and night
Lamp metal connection flexible pipe is connected with the inner sleeve.The bottom sides of the outer tube are equipped with two fine tuning ball valves, an institute
It states fine tuning ball valve and corresponds to an altar lamp metal connection flexible pipe.
In one of the embodiments, the burner body includes the noise reduction galvanized steel wire netting set gradually from inside to outside
Inner cylinder, aluminosilicate fiber cotton layer, outer barrel.
In one of the embodiments, each outer gas gun includes outer gas gun bar and is arranged on outer gas gun bar top
The outer gas gun nozzle in portion.The outer gas gun nozzle is equipped with several outer gas gun spray orifices.Each outer gas gun spray orifice inclines
Oblique spray angle is different, and shape is at a certain angle between each outer gas gun spray orifice.
In one of the embodiments, each interior gas gun includes interior gas gun bar and is arranged on interior gas gun bar top
The interior gas gun nozzle in portion.The interior gas gun nozzle is equipped with several interior gas gun spray orifices, and each interior gas gun spray orifice inclines
Oblique spray angle is different.
In one of the embodiments, the ultralow NOx gas burners of flat attached wall flame further include two regulation ball valves,
One of them described regulation ball valve is arranged on the junction of the outer rifle metal connection flexible pipe and threeway, another described adjusting ball
Valve is arranged on the junction of the interior rifle metal connection flexible pipe and threeway.
In one of the embodiments, every outer gas gun respectively passes through external seal connector and the outer gas gun set
Pipe is connected, and the middle part of the outer gas gun concetrated pipe is connected also by external seal connector with the outer rifle metal connection flexible pipe
It is logical.
In one of the embodiments, every interior gas gun respectively passes through interior sealing connector and the interior gas gun set
Pipe is connected, and the middle part of the interior gas gun concetrated pipe is connected also by interior sealing connector with the interior rifle metal connection flexible pipe
It is logical.
In one of the embodiments, the both ends of the outer gas gun nozzle are equipped with external screw thread plug.
In one of the embodiments, the both ends of the interior gas gun nozzle are equipped with internal thread plug.
Advantages of the present invention and its advantage：
1st, it is up to standard to realize NOx emission by the present invention；By by fuel staging and proportion adjustment, suitable for the low NOx under different load
Burning and exhausting requirement, the present invention is by a variety of flow-disturbings of combustion air and the utilization of Venturi effect so that classification fuel mixes
It closes fully, burner centre flame disperses, and flame propagation mode is reliable, and flame temperature reduces, and effectively inhibits NOx generations.
2nd, the present invention is to the adaptable of fuel.
3rd, the present invention is not easy de- fire, flame is partially short, flame distribution is uniform；The present invention is by setting the special of fire pot brick structure
Meter, outer gas gun and interior gas gun fuel injection correspond to, and reasonably intersect above brazier brick, to penetrating, by different level burn, wherein
Overrich burning, excessively light burning, the disperses combustion of fuel and air of flue gas reburning, fuel and air are applied, burner hearth flue gas returns
Stream, the technologies such as fuel and air Forced Mixing effectively inhibit NOx generations, and flame macroscopic view is flat in attached wall, upright and outspoken straight up
Effectively, de- fire is not easy, flame distribution evenly, and reduces flame height, makes the gas radiation time more abundant, radiation efficiency is more
Height, and radiation fire scene temperature evenly is obtained, ensure coking boiler tube thermally equivalent, reduce boiler tube hot-spot coking risk,
Yield is promoted beneficial to coking furnace, saves energy consumption.
4th, attached wall effect of the present invention is good；By the special designing of external gas gun spray orifice and interior gas gun spray orifice, make flame
Along wall rather than to wall, attached wall burns upwards, so as to reach the function of protection burner hearth liner body.
5th, the altar lamp that the present invention uses can be with automatic electronic igniting.
6th, burner body of the present invention is using noise reduction galvanized steel wire netting inner cylinder, aluminosilicate fiber cotton layer, heat preservation and insulation
It is excellent, the outside radiation loss of burner body is minimized, thus reach efficient, energy saving, ultralow NOXDisposal of pollutants and low noise
The environmentally friendly purpose of sound.
7th, due to the design of fire pot brick structure and the cooperation of outer gas gun spray orifice and interior gas gun jet nozzle angle, ejection
It after fuel gas is mixed with combustion air, burns away from nozzle, greatly reduces coking and the possibility blocked.
Description of the drawings
Fig. 1 is the main sectional view of the present invention.
Fig. 2 is the sectional view of the present invention.
Fig. 3 is bottom view of the present invention.
Fig. 4 is the structure diagram of brazier brick of the present invention.
Fig. 5 is the bottom view of brazier brick in Fig. 4.
Fig. 6 is the front view of brazier brick in Fig. 4.
Fig. 7 is the sectional view of brazier brick in Fig. 4.
Fig. 8 is the top view of brazier brick in Fig. 4.
Specific embodiment
For the ease of understanding the present invention, the present invention is comprehensively described below with reference to relevant drawings.It is given in attached drawing
The preferred embodiment of the present invention is gone out.But the present invention can be embodied in many different forms, however it is not limited to described herein
Embodiment.On the contrary, the purpose for providing these embodiments is to make the disclosure more thorough and comprehensive.
It should be noted that when element is referred to as " setting " in another element, it can be directly in another element
Above or there may also be elements placed in the middle.When an element be considered as with another element " being connected ", it can be direct
It is connected to another element or may be simultaneously present centering elements.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The normally understood meaning of technical staff is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of body embodiment, it is not intended that in the limitation present invention.
Embodiment 1
As shown in Figure 1 to Figure 3, a kind of ultralow NOx gas burners of flat attached wall flame, are arranged in heating furnace 1, including burner
Main body 11, altar lamp 3, outer gas gun part, interior gas gun part, threeway 12, brazier brick 9, air adjustment actuator 13, fire inspection 14, point
Fire hole 15, the outer gas gun groove 91 of the regulation ball valve 17,3 of flame-observing hole 16, two.
Wherein, the top of burner body 11 is equipped with the brazier brick 9 communicated therewith.
Specifically, the side of burner body 11 is equipped with the air adjustment actuator 13 communicated therewith respectively and fire inspection 14.Altar lamp 3
One end stretched into through the bottom of burner body 11 in brazier brick 9.The bottom of burner body 11 is equipped with fire hole 15 and sees
Fire hole 16.
As shown in Fig. 4 to 8, brazier brick 9 is hollow structure.
Specifically, the top half of brazier brick 9 slopes inwardly to form injection gas burning face 93.It is past from root to spray gas burning face 93
Upper radial, and spray gas burning face 93 and include three inclined-planes, each adjacent bevel surfaces angle of inclination is different, beneficial to make fuel gas injection and
The backflow flue gas differentiation of carrying, it is local to carry out flow-disturbing, make fuel distribution and flame temperature more scattered, lower NOx and generate.
Wherein, the combustion air passage 95 with being connected inside burner body 11 is equipped in brazier brick 9.
Specifically, the level cross-sectionn of 95 the latter half of combustion air passage is rectangle, combustion air can be allowed uniform
Assign to 9 mouthfuls of brazier brick.Three sides of 95 top half of combustion air passage are inclined outwardly, and a side slopes inwardly, and makes
The vertical cross section of 95 top half of combustion air passage is obtained as inverted trapezoidal, and causes opening for 95 top half of combustion air passage
The metope parallel direction of opening's edge heating furnace 1 gradually expands, and is attached to beneficial to combustion gas and flame on wall with flues.
Wherein, the latter half of brazier brick 9 corresponds to the lower section of injection gas burning face 93 equipped with 3 outer gas gun grooves 91.
Wherein, outer gas gun part includes 3 outer gas guns, outer gas gun concetrated pipe 53, outer rifle metal connection flexible pipe 55.
Specifically, two end faces closing of outer gas gun concetrated pipe 53.Outer gas gun concetrated pipe 53 is arranged on burner master
The lower section of the top plate of body 11.One outer gas gun corresponds to an outer gas gun groove 91.One end of every outer gas gun all passes through
The top plate of burner body 11 is put in corresponding outer gas gun groove 91, the other end all with outer 53 phase of gas gun concetrated pipe
Connection.The middle part of outer gas gun concetrated pipe 53 is connected by outer rifle metal connection flexible pipe 55 with threeway 12.
Wherein, interior gas gun part includes 3 interior gas guns, interior gas gun concetrated pipe 73, interior rifle metal connection flexible pipe 75.
Specifically, two end faces closing of interior gas gun concetrated pipe 73.Interior gas gun concetrated pipe 73 is fixed on burner master
The bottom of body 11.One end of every interior gas gun is all put in through the bottom of burner body 11 in combustion air passage 95
Portion, the other end are connected with interior gas gun concetrated pipe 73.Height at the top of interior gas gun is less than the height at the top of outer gas gun.It is interior
The middle part of gas gun concetrated pipe 73 is connected by interior rifle metal connection flexible pipe 75 with threeway 12.
Specifically, one of regulation ball valve 17 is arranged on the junction of outer rifle metal connection flexible pipe 55 and threeway 12, separately
One regulation ball valve 17 is arranged on the junction of interior rifle metal connection flexible pipe 75 and threeway 12.
Wherein, altar lamp 3 includes 34, two altar lamp nozzle 31, outer tube 32, inner sleeve 33, signal lever fine tuning ball valves
35th, two root long bright lamp metal connection flexible pipes 36, terminal box 37, remote control part.
Specifically, the top of inner sleeve 33 is equipped with altar lamp nozzle 31.Outer tube 32 is set in outside inner sleeve 33.Signal lever
34 are fixed on 33 center of inner sleeve.Terminal box 37 connects with signal lever 34 and remote control split-phase.One root long bright lamp metal connects
Space between hose 36 and the inner wall of outer tube 32 and the outer wall of inner sleeve 33 is connected, and another root long bright lamp metal connection is soft
Pipe 36 is connected with inner sleeve 33.The bottom sides of outer tube 32 are equipped with two fine tuning ball valves 35, and a fine tuning ball valve 35 corresponds to
One root long bright lamp metal connection flexible pipe 36, the size of controllable 3 fuel gas of altar lamp control the height of 3 flame of altar lamp and steady
It is qualitative.
Specifically, the altar lamp metal that the space between the inner wall of outer tube 32 and the outer wall of inner sleeve 33 is connected connects
It connects that end of hose 36 away from outer tube 32 with live burning line to be connected, be connected with the altar lamp metal that inner sleeve 33 is connected
That end of hose 36 away from inner sleeve 33 is connected with field instrument air hose line.
Wherein, burner body 11 includes the noise reduction galvanized steel wire netting inner cylinder, the alumina silicate fibre that set gradually from inside to outside
Cotton layer, outer barrel.
Wherein, each outer gas gun includes outer gas gun bar 59 and the outer gas gun spray for being arranged on outer 59 top of gas gun bar
First 51.
Wherein, each interior gas gun includes interior gas gun bar 79 and the interior gas gun spray for being arranged on interior 79 top of gas gun bar
First 71.
Specifically, outer gas gun nozzle 51 is equipped with several outer gas gun spray orifices.The inclination spray of each outer gas gun spray orifice
Angle is different, and shape is at a certain angle between each outer gas gun spray orifice.Interior gas gun nozzle 71 is equipped with several interior gas gun sprays
Hole, the inclination spray angle of each interior gas gun spray orifice are different.In this way, combustion gas and air are all divided into thread, connecing for two strands of air-flows is increased
Contacting surface is accumulated, and improves the encounter environment of combustion gas and air, and inside and outside combustion gas is made to form double-layer flame, not only enhances combustion process, but also drop
Internal layer flame temperature in low air passage, while secondary fuel is lighted after the refraction reflux of interior gas gun flue gas, play stable flame
Effect.
Specifically, every outer gas gun is respectively connected by external seal connector 57 with outer gas gun concetrated pipe 53, outer combustion gas
The middle part of rifle concetrated pipe 53 is connected also by external seal connector 57 with outer rifle metal connection flexible pipe.
Specifically, every interior gas gun is respectively connected by interior sealing connector 77 with interior gas gun concetrated pipe 73, interior combustion gas
The middle part of rifle concetrated pipe 73 is connected also by interior sealing connector 77 with interior rifle metal connection flexible pipe 75.
Wherein, the both ends of outer gas gun nozzle 51 are equipped with external screw thread plug, and the both ends of interior gas gun nozzle 71 are equipped with interior spiral shell
Line plug.It is convenient to clean.
The operation principle and its course of work of the present invention：
Outer gas gun of the invention and interior gas gun supply fuel staging, according to operating mode adjust in gas gun and outer gas gun combustion gas
Ratio beneficial to combustion gas local concentration in the control burner scene of a fire, realizes the overrich of fuel, excessively light burning, controls ignition temperature, real
Existing low NOx drainage；Flame distribution evenly, and reduces flame height, makes the gas radiation time more abundant, and radiation efficiency improves,
And radiation fire scene temperature evenly is obtained, ensure coking boiler tube thermally equivalent, reduce boiler tube hot-spot coking risk, be beneficial to
Coking furnace promotes yield, saves energy consumption.
Combustion gas is by each outer gas gun spray orifice and interior gas gun spray orifice to 9 inclined-plane of brazier brick and overhead in multi-stage jet, reality
The deep or light area distribution difference of existing combustion zone fuel, inhibits the generation of NOx.Combustion gas is sprayed on fuel gas injection to brazier brick 9
Low-pressure area is formed at 93 bead of face, promotes burner hearth smoke backflow, with the mixed combustion again of combustion gas, combustion air, is further inhibited
The generation of NOx.
The top half of brazier brick 9 slopes inwardly to form injection gas burning face 93.Injection gas burning face 93 is in up to put from root
It penetrates shape, and sprays gas burning face 93 to include three inclined-planes, each adjacent bevel surfaces angle of inclination is different, beneficial to making fuel gas injection and carrying
Backflow flue gas differentiation, it is local to carry out flow-disturbing, make fuel distribution and flame temperature more scattered, lower NOx and generate.
Three sides of 95 top half of combustion air passage are inclined outwardly, and a side slopes inwardly so that combustion-supporting sky
The vertical cross section of 95 top half of gas passage is inverted trapezoidal, and causes the opening edge heating of 95 top half of combustion air passage
The metope parallel direction of stove 1 gradually expands, and is attached to beneficial to combustion gas and flame on wall with flues.
Outer gas gun nozzle 51 is equipped with several outer gas gun spray orifices.The inclination spray angle of each outer gas gun spray orifice is different,
And shape is at a certain angle between each outer gas gun spray orifice.Interior gas gun nozzle 71 is equipped with several interior gas gun spray orifices, each interior
The inclination spray angle of gas gun spray orifice is different.In this way, combustion gas and air are all divided into thread, the contact area of two strands of air-flows is increased,
Improve the encounter environment of combustion gas and air, inside and outside combustion gas is made to form double-layer flame, combustion process is not only enhanced, but also reduces air passage
Middle internal layer flame temperature, while secondary fuel is lighted after the refraction reflux of interior gas gun flue gas, play the role of stable flame.Simultaneously
Wide and narrow 9 wind passage mouth of brazier brick of flat-shaped contraction increases the exit velocity of combustion gas and combustion air and primary fuel flue gas, increases
The wadding of air-flow is added to move size, the flue gas after refraction reflux forms impingement mix with second gas burning, enhances second gas burning and cigarette
The mixing of gas shortens dramatically the flue gas of the burning residence time in combustion zone.
It should be noted that：The data repeatedly tested according to inside：
Oxygen content in flue gas（O2）：3%（Mol butts）；
NOXConcentration：≤38mg/Nm3；
CO concentration：＜ 20ml/Nm3；
The noise that burner 100% is run：≤70dB（A）（Away from place beyond equipment 1m）；
Ultralow NO is reachedXDisposal of pollutants and the environmentally friendly purpose of low noise.
Advantages of the present invention and its advantage：
1st, it is up to standard to realize NOx emission by the present invention；By by fuel staging and proportion adjustment, suitable for the low NOx under different load
Burning and exhausting requirement, the present invention is by a variety of flow-disturbings of combustion air and the utilization of Venturi effect so that classification fuel mixes
It closes fully, burner centre flame disperses, and flame propagation mode is reliable, and flame temperature reduces, and effectively inhibits NOx generations.
2nd, the present invention is to the adaptable of fuel.
3rd, the present invention is not easy de- fire, flame is partially short, flame distribution is uniform；The present invention passes through to the special of 9 structure of brazier brick
Design, outer gas gun and interior gas gun fuel injection correspond to, brazier brick 9 above rational intersection, to penetrating, by different level burn,
Wherein apply overrich burning, excessively light burning, the disperses combustion of fuel and air of flue gas reburning, fuel and air, burner hearth cigarette
Gas flows back, the technologies such as fuel and air Forced Mixing, effectively inhibits NOx generations, and flame macroscopic view is flat in attached wall, straight up
It is upright and outspoken strong, de- fire is not easy, flame distribution evenly, and reduces flame height, makes the gas radiation time more abundant, radiation effect
Rate higher, and radiation fire scene temperature evenly is obtained, ensure coking boiler tube thermally equivalent, reduce boiler tube hot-spot coking wind
Danger promotes yield beneficial to coking furnace, saves energy consumption.
4th, attached wall effect of the present invention is good；By the special designing of external gas gun spray orifice and interior gas gun spray orifice, make flame
Along wall rather than to wall, attached wall burns upwards, so as to reach the function of protection burner hearth liner body.
5th, the altar lamp that the present invention uses can be with automatic electronic igniting.
6th, burner body 11 of the present invention is using noise reduction galvanized steel wire netting inner cylinder, aluminosilicate fiber cotton layer, heat-insulation and heat-preservation
Can be excellent, 11 outside radiation loss of burner body is minimized, thus reach efficient, energy saving, ultralow NOXDisposal of pollutants with
The environmentally friendly purpose of low noise.
7th, due to the design of fire pot brick structure and the cooperation of outer gas gun spray orifice and interior gas gun jet nozzle angle, ejection
It after fuel gas is mixed with combustion air, burns away from nozzle, greatly reduces coking and the possibility blocked.
Embodiment described above only expresses one embodiment of the present invention, and description is more specific and detailed, but simultaneously
Cannot the limitation to the scope of the claims of the present invention therefore be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of ultralow NOx gas burners of flat attached wall flame are set in heating furnace, which is characterized in that including burner
Main body, altar lamp, outer gas gun part, interior gas gun part and threeway, the top of the burner body is equipped with and it
The brazier brick of connection, the side of the burner body is equipped with the air adjustment actuator communicated therewith respectively and fire is examined, the altar lamp
One end stretched into through the bottom of the burner body in the brazier brick, the bottom of the burner body is equipped with fire hole
And flame-observing hole；
The brazier brick is hollow structure, and the top half of the brazier brick slopes inwardly to form injection gas burning face, the injection
Gas burning face is up radial from root, and the injection gas burning face includes three inclined-planes, and each adjacent bevel surfaces angle of inclination is different,
The combustion air passage with being connected inside the burner body, the combustion air passage lower half are equipped in the brazier brick
Partial level cross-sectionn is rectangle, and three sides of the combustion air passage top half are inclined outwardly, a side
Slope inwardly so that the vertical cross section of the combustion air passage top half is inverted trapezoidal, and causes the combustion air
The opening of passage top half gradually expands along the metope parallel direction of the heating furnace, and the latter half of the brazier brick corresponds to
The lower section of the injection gas burning face is equipped with 2 ~ 4 outer gas gun grooves；
The outer gas gun part includes 2 ~ 4 outer gas guns, outer gas gun concetrated pipe, outer rifle metal connection flexible pipe, described outer
Two end faces closing of gas gun concetrated pipe, the outer gas gun concetrated pipe are arranged under the top plate of the burner body
Side, an outer gas gun correspond to an outer gas gun groove, and one end of every outer gas gun all passes through the burning
The top plate of device main body is put in corresponding outer gas gun groove, and the other end is all connected with the outer gas gun concetrated pipe,
The middle part of the outer gas gun concetrated pipe is connected by outer rifle metal connection flexible pipe with the threeway；
The interior gas gun part includes 2 ~ 4 interior gas guns, interior gas gun concetrated pipe, interior rifle metal connection flexible pipe, described interior
Two end faces closing of gas gun concetrated pipe, the interior gas gun concetrated pipe are fixed on the bottom of the burner body, every
One end of interior gas gun all puts in the middle part of the combustion air passage, the other end and institute through the bottom of the burner body
It states interior gas gun concetrated pipe to be connected, the height at the top of the interior gas gun is described less than the height at the top of the outer gas gun
The middle part of interior gas gun concetrated pipe is connected by the interior rifle metal connection flexible pipe with the threeway.
2. the ultralow NOx gas burners of flat attached wall flame according to claim 1, which is characterized in that the altar lamp
Component is soft including altar lamp nozzle, outer tube, inner sleeve, signal lever, two fine tuning ball valves, the connections of two root long bright lamp metals
Pipe, terminal box, remote control part；
The top of the inner sleeve is equipped with altar lamp nozzle, and the outer tube is set in outside the inner sleeve, and the signal lever is consolidated
The inner sleeve tube hub is scheduled on, the terminal box connects with the signal lever and remote control split-phase, an altar lamp gold
Belong to connection flexible pipe with the space between the inner wall of the outer tube and the outer wall of inner sleeve to be connected, another altar lamp gold
Belong to connection flexible pipe with the inner sleeve to be connected, the bottom sides of the outer tube are equipped with two fine tuning ball valves, and one described micro-
Ball valve is adjusted to correspond to an altar lamp metal connection flexible pipe.
3. the ultralow NOx gas burners of flat attached wall flame according to claim 1, which is characterized in that the burner master
Body includes the noise reduction galvanized steel wire netting inner cylinder, aluminosilicate fiber cotton layer, the outer barrel that set gradually from inside to outside.
4. the ultralow NOx gas burners of flat attached wall flame according to claim 1, which is characterized in that each external combustion
Air gun includes outer gas gun bar and the outer gas gun nozzle being arranged at the top of outer gas gun bar, and the outer gas gun nozzle is equipped with
Several outer gas gun spray orifices, the inclination spray angle of each outer gas gun spray orifice is different, and is formed centainly between each outer gas gun spray orifice
Angle.
5. the ultralow NOx gas burners of flat attached wall flame according to claim 1, which is characterized in that each internal combustion
Air gun includes interior gas gun bar and the interior gas gun nozzle being arranged at the top of interior gas gun bar, and the interior gas gun nozzle is equipped with
Several interior gas gun spray orifices, the inclination spray angle of each interior gas gun spray orifice are different.
6. the ultralow NOx gas burners of flat attached wall flame according to claim 1, which is characterized in that the flat attached wall
The ultralow NOx gas burners of flame further include two regulation ball valves, one of them described regulation ball valve is arranged on the outer rifle metal
Connection flexible pipe and the junction of threeway, another described regulation ball valve are arranged on the company of the interior rifle metal connection flexible pipe and threeway
Meet place.
7. the ultralow NOx gas burners of flat attached wall flame according to claim 1, which is characterized in that every external combustion
Air gun is respectively connected by external seal connector with the outer gas gun concetrated pipe, the middle part of the outer gas gun concetrated pipe also by
External seal connector is connected with the outer rifle metal connection flexible pipe.
8. the ultralow NOx gas burners of flat attached wall flame according to claim 1, which is characterized in that every internal combustion
Air gun is respectively connected by interior sealing connector with the interior gas gun concetrated pipe, the middle part of the interior gas gun concetrated pipe also by
Interior sealing connector is connected with the interior rifle metal connection flexible pipe.
9. the ultralow NOx gas burners of flat attached wall flame according to claim 4, which is characterized in that the outer gas gun
The both ends of nozzle are equipped with external screw thread plug.
10. the ultralow NOx gas burners of flat attached wall flame according to claim 5, which is characterized in that the interior gas gun
The both ends of nozzle are equipped with internal thread plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810034898.2A CN108050515A (en) | 2018-01-15 | 2018-01-15 | A kind of flat ultralow NO of attached wall flamexGas burner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810034898.2A CN108050515A (en) | 2018-01-15 | 2018-01-15 | A kind of flat ultralow NO of attached wall flamexGas burner |
Publications (1)
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| CN108050515A true CN108050515A (en) | 2018-05-18 |
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ID=62126681
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810034898.2A Pending CN108050515A (en) | 2018-01-15 | 2018-01-15 | A kind of flat ultralow NO of attached wall flamexGas burner |
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| CN108679608A (en) * | 2018-07-23 | 2018-10-19 | 岳阳钟鼎热工电磁科技有限公司 | A kind of big load boiler gas burner of ultra-low NOx emission |
| CN109442399A (en) * | 2018-07-20 | 2019-03-08 | 北京航空航天大学 | One kind, which liquidates, directly sprays low NO |
| CN109737408A (en) * | 2019-03-10 | 2019-05-10 | 岳阳钟鼎热工电磁科技有限公司 | The big load pyrolysis furnace gas burner of flat fan flame ultra-low NOx emission |
| CN111520721A (en) * | 2020-04-03 | 2020-08-11 | 岳阳远东节能设备有限公司 | Low-NOx-emission efficient energy-saving combustor capable of burning heavy oil, oil slurry and fuel gas |
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| CN111520721A (en) * | 2020-04-03 | 2020-08-11 | 岳阳远东节能设备有限公司 | Low-NOx-emission efficient energy-saving combustor capable of burning heavy oil, oil slurry and fuel gas |
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