CN208936152U - A kind of atmosphere injection type fire row combustor with cylindrical fire face - Google Patents
A kind of atmosphere injection type fire row combustor with cylindrical fire face Download PDFInfo
- Publication number
- CN208936152U CN208936152U CN201821500153.2U CN201821500153U CN208936152U CN 208936152 U CN208936152 U CN 208936152U CN 201821500153 U CN201821500153 U CN 201821500153U CN 208936152 U CN208936152 U CN 208936152U
- Authority
- CN
- China
- Prior art keywords
- mixture pipe
- water
- fire
- interior
- pipe
- 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.)
- Expired - Fee Related
Links
Abstract
A kind of atmosphere injection type fire row combustor with cylindrical fire face of the utility model, including secondary air channel, and using secondary air channel as mixture pipe in the circle that circle center is annularly arranged；Secondary air channel endcapped is provided with several air outlets on side wall, radiates Secondary Air towards surrounding in circle center；Interior mixture pipe uses atmosphere injection type combustion system, and excess air coefficient is less than 1；The fire hole of interior mixture pipe is outwardly disposed, forms cylindrical fire face, is in gap setting between adjacent interior mixture pipe；Interior mixture pipe front end is equipped with the first water inlet header, and interior mixture pipe rear end is equipped with the first water outlet header；The first water-cooling channel between first water inlet header and the first water outlet header is arranged along the fire hole side of interior mixture pipe.It using atmospheric burning type method, is designed by optimizing combustor, realizes a wide range of adjusting of First air coefficient, reach air-fuel ratio close to 1 operating condition, burner structure is exquisite, substantially reduces burner volume.
Description
Technical field
The utility model relates to air suspended type fire row gas burners matched in gas fired-boiler, specially a kind of to have cylinder
The atmosphere injection type fire row combustor of shape flame front.
Background technique
As the publication of national environmental protection, energy saving policy is implemented, many cities in China start to control the construction of coal-burning boiler, and
As use the Medium and small gas boiler of clean energy resource is convenient and efficient with its, the thermal efficiency is high, the small fine quality of pollution and by
Market favor, becomes the ideal product of substitution coal-burning boiler.
Condensation gas boiler is increasingly becoming the mainstream in China gas fired-boiler market due to its high energy efficiency low emission.Nowadays, cold
The burner of solidifying gas fired-boiler is mostly all-premixing burner, but there are many problems for all-premixing burner.Although full premix combustion
It is low that device publicizes its flue gas oxygen content, but true emission behaviour is really not so, and high oxygen content in flue gas influences condensation gas boiler
Efficiency.Requirement of the all-premixing burner to equipment is high, for example has many micro-pores on metal mesh, empty after a period of use
Impurity in gas blocks aperture, needs periodic cleaning.All-premixing burner is easy to produce burning concussion problem, and it is multiple to eliminate means
It is miscellaneous, and it is low to stablize combustion range, it is easier to tempering and de- fire.The valve group control device of all-premixing burner is entirely by foreign corporation
Monopolization, home products are wanted to break through very difficult, but the equipment of atmospheric burner can all domesticize, and are conducive to get rid of pair
The dependence of foreign country.
Traditional air suspended type fire grate type burner has been commonly used at present since its firepower is violent, effect is high in various combustion gas
In apparatus.However existing fire grate type burner is template arrangement on the market at present, plane burning occupies burner hearth area
Greatly, the effect of fuel gas buring is insufficient, reduces burner and pollutant emission is big.
Utility model content
Aiming at the problems existing in the prior art, the utility model provides a kind of big gas injection with cylindrical fire face
Formula fire row combustor is designed using atmospheric burning type method by optimizing combustor, realizes a wide range of tune of First air coefficient
Section reaches air-fuel ratio close to 1 operating condition, and burner structure is exquisite, substantially reduces burner volume.
The utility model is to be achieved through the following technical solutions:
A kind of atmosphere injection type fire row combustor with cylindrical fire face, including secondary air channel, and with Secondary Air
Pipe is the interior mixture pipe of a circle that circle center is annularly arranged；The secondary air channel endcapped, if being provided on side wall
Air port is done, radiates Secondary Air towards surrounding in circle center；The interior mixture pipe uses atmosphere injection type combustion system,
Excess air coefficient is less than 1；The fire hole of interior mixture pipe is outwardly disposed, forms cylindrical fire face, adjacent interior mixture pipe
Between be in gap setting；The interior mixture pipe front end is equipped with the first water inlet header, and interior mixture pipe rear end is equipped with first and goes out
Water header；The first water-cooling channel between first water inlet header and the first water outlet header is set along the fire hole side of interior mixture pipe
It sets.
Preferably, interior mixture pipe includes sequentially connected decrement pyramid type the first injection section, cylindrical first trunnion section,
Circle turns the first diffuser of square, and the first rectification section, the first rectangle dispensing section of circulation area decrement, one end setting is in decrement circle
First ejector pipe of the pressure adjustable in tapered first injection section, and it is arranged in the of the first rectangle dispensing section outer outlets end
One clearance type fire hole；First water-cooling channel is arranged in the first clearance type fire hole two sides.
Further, there are two types of the first rectification sections of length, interior mixture pipe alternately to use when circumferentially arranging for setting altogether
The mixture pipe of two kinds of length makes it axially inside be staggered in burner hearth.
Preferably, interior mixture pipe external concentric is provided with the outer mixture pipe that a circle is annularly arranged；
The outer mixture pipe is the burning of two-stage ejection premixing type, and excess air coefficient is greater than 1, and gas quantity used is
The 80%~90% of the total gas quantity of burner；Gas quantity used in interior mixture pipe is the 10%~20% of the total gas quantity of burner；
Outer mixture pipe fire hole is outwardly disposed, forms cylindrical fire face, is in gap setting between adjacent outer mixture pipe；
The outer mixture pipe front end is equipped with the second water inlet header, and outer mixture pipe rear end is equipped with the second water outlet header；
The second water-cooling channel between second water inlet header and the second water outlet header is arranged along the fire hole side of outer mixture pipe.
Further, the outer mixture pipe includes tapered the second injection of the pyramid type section of sequentially connected second level injector,
Second level injector cylinder aux. venturi section, second level injector circle turn the second diffuser of square, the second rectification section, circulation area
Second rectangle dispensing section of decrement, the level-one injection in tapered the second injection of the pyramid type section of second level injector is arranged in outlet end
The second ejector pipe of the pressure adjustable in level-one injector arrival end is arranged in device, one end, and setting is distributed in the second rectangle
The second clearance type fire hole at section outer outlets end；Second water-cooling channel is arranged in the second clearance type fire hole two sides.
Further, there are two types of the second rectification sections of length, outer mixture pipe alternately to use when circumferentially arranging for setting altogether
The mixture pipe of two kinds of length axially offsets its edge in burner hearth.
Further, the first water inlet header and the second water inlet header include several independent water cavities, each independent water
Chamber is connected to corresponding first water-cooling channel or the second water-cooling channel, and the water outlet of the first water-cooling channel enters the first water outlet collection
Case, the water outlet of the second water-cooling channel enter the second water outlet header.
Further, clearance type fire hole is compressed by the fin for being alternately fixed on corresponding rectangle dispensing section outer outlets end two sides
It is formed；Gap is as clearance type fire hole between the fin of two sides is mutually inserted the fin to be formed.
Preferably, be coaxially arranged with isobaric tucker inside the secondary air channel, go deep into burner hearth part along axial and
It circumferentially is uniformly arranged air outlet, direction of air outlet is directed towards interior mixture pipe gap.
Further, the isobaric tucker is arranged in cone, and diameter is from upstream to downstream gradual change increase, for making two
Secondary air hose inner second air is along axial isobaric distribution.
Compared with prior art, the utility model has technical effect beneficial below:
The utility model central secondary air hose uniformly sprays Secondary Air outward, ensure that the stabilization of interior mixture pipe burning
Property, combustion-supporting Secondary Air keeps combustion gas completely burned off, reduces the discharge of CO, and the flue gas that interior fire hole mixture combustion generates is brought into
Combustor external realizes flue gas recirculation, further decreases discharge.And due to the arrangement of interior mixture pipe and secondary air channel,
Enhance this burner flame stability, effectively prevent the generation of de- fiery phenomenon.The utility model using air radial grading and
Inside smoke recirculating technique improves efficiency of combustion and reduces nitrogen oxides, it can be achieved that 30mg/m3Ultralow NOxDischarge.This is practical new
Type, which has abandoned traditional fire grate type burner, can be only formed the structure of flat flame front arrangement, arrange mixture pipe equidistantly by circumference
Column form the structure of cylindrical fire face arrangement, keep fire grate type burner compact-sized, small in size, are more suitable for cast aluminium silicon, copper wing
The cylindrical body furnace cavity of the commercial gas condenser boiler such as piece, stainless steel.
Further, the utility model is by being arranged outer mixture pipe, to realize combustion gas circumferential classification, air classification, cigarette
Gas recycling and water cooling burner flame technology, it is most of by outer mixture pipe from circumferential ejection, gaseous mixture fire hole by
The cooling of second water-cooling channel, reduces ignition temperature, effectively prevent tempering phenomenon, and is continued by heat-exchanger rig in burner hearth cold
But, therefore flame temperature is lower than conventional fire grate type burner, effectively reduces NOxDischarge.
Further, about 90% gaseous mixture is circumferential in the outer mixture pipe of the burner shown in the utility model
It sprays, 10% gaseous mixture is from the outside spray combustion of interior mixing tube.Small part gaseous mixture is fired from the outside spray combustion of interior mixing tube
It burns the flue gas generated and Secondary Air and enters burner hearth from outer mixture pipe gap, reduce the oxygen concentration and temperature of outer gaseous mixture,
Realize inside smoke recycling.
Further, secondary air channel is forced air supply, by solenoid valve control, accurately controls secondary air flow, cooperation First air can
Adapt to the requirement of different operating conditions.
Further, since outer mixture pipe is numerous, single header will cause the problems such as flow velocity is insufficient, distribution is uneven, because
This, for the utility model by isolation in the second water inlet header at multi-section point, water inlet pipe is separately provided in every part.
Detailed description of the invention
Fig. 1 is the main view of the utility model.
Fig. 2 is the right view of the utility model.
Fig. 3 is the left view of the utility model.
Fig. 4 a is the interior mixture pipe main view of the utility model.
Fig. 4 b is the interior mixture pipe top view of the utility model.
Fig. 5 a is the main view of the outer mixture pipe of the utility model.
Fig. 5 b is the top view of the outer mixture pipe of the utility model.
Fig. 6 is the utility model fire hole partial enlarged view.
Fig. 7 is the utility model secondary air channel main view.
In figure: interior mixture pipe 1, the first injection section 1-1, the first trunnion section 1-2, the first diffuser 1-3, the first rectangle point
With section 1-4, the first clearance type fire hole 1-5, the first ejector pipe 1-6, the first rectification section 1-7, the first water-cooling channel 1-8, outer mixing
Tracheae 2, the second injection section 2-1, aux. venturi section 2-2, the second diffuser 2-3, the second rectangle dispensing section 2-4, the second clearance type
Fire hole 2-5, the second ejector pipe 2-6, the second rectification section 2-7, the second water-cooling channel 2-8, level-one injector 2-9, fin 2-10, two
Secondary air hose 3, isobaric tucker 3-1, air outlet 3-2, the second water inlet header 4, the second water outlet header 5.
Specific embodiment
The utility model is described in further detail below with reference to specific embodiment, described is to the utility model
Explanation rather than limit.
A kind of atmosphere injection type fire row combustor with cylindrical fire face of the utility model is suitable within 2.8MW
Commercial combustion gas heating boiler, further reduce burning using atmospheric burning type technology, and than traditional air suspended type fire row combustor
Body product, reduces flame temperature, reduces NOxDischarge.
It includes secondary air channel 3, is circle center with secondary air channel 3, and arranged concentric has gaseous mixture in a circle from inside to outside
Pipe 1 and an outer mixture pipe 2 of circle, radially in equidistant placement between interior mixture pipe 1 and outer mixture pipe 2, before interior mixture pipe 1
End is equipped with the first water inlet header, and interior 1 rear end of mixture pipe is equipped with the first water outlet header；Outer 2 front end of mixture pipe be equipped with second into
Water header 4, outer 2 rear end of mixture pipe are equipped with the second water outlet header 5.
In this preferred embodiment, interior mixture pipe 1, outer mixture pipe 2 are in concentric circumferences equidistant placement, interior 1 cloth of mixture pipe
It sets inner, outer mixture pipe 2 is arranged in outer, and fire hole is outwardly disposed, and the flame front of formation is cylinder, and secondary air channel 3 is in circumference
Center radiates Secondary Air towards surrounding, can effectively save burner volume, make full use of furnace cavity.
Wherein, interior mixture pipe 1 is atmosphere injection type combustion system, and less than 1, gas quantity used is excess air coefficient
10%~20%, it as shown in figures 4 a and 4b, in structure include the first ejector pipe 1-6 of sequentially connected pressure adjustable, decrement
Pyramid type the first injection section 1-1, the first trunnion section 1-2 of cylinder, circle turn the first diffuser 1-3, the first rectification section 1- of square
7, the first rectangle dispensing section 1-4, fin 2-10 of circulation area decrement compresses the first clearance type fire hole 1-5 to be formed；And cloth
The first water-cooling channel of rectangle 1-8, the first clearance type fire hole 1-5 setting around the first clearance type fire hole 1-5 is set in the first square
The outlet end of shape dispensing section 1-4；Using the first rectification section 1-7 of two kinds of length, it is made alternately to use two when circumferentially arranging
The mixture pipe of kind length axially offsets it in burner hearth outer, can increase the number for the interior mixture pipe 1 that same circumference can be arranged
Amount.
Wherein, outer mixture pipe 2 is the burning of two-stage ejection premixing type, and excess air coefficient is greater than 1, and gas quantity used accounts for
80%~90%, as shown in Fig. 5 a, Fig. 5 b and Fig. 6, structure includes the second ejector pipe 2-6 of sequentially connected pressure adjustable,
Level-one injector 2-9, tapered the second injection of the pyramid type section 2-1 of second level injector, second level injector cylinder aux. venturi section 2-
2, second level injector circle turns the second diffuser 2-3 of square, the second rectangle dispensing section of the second rectification section 2-7 circulation area decrement
2-4, fin 2-10 compress the second clearance type fire hole 2-5 to be formed, and the rectangle being arranged in around the second clearance type fire hole 2-5
The outlet end of the second rectangle dispensing section 2-4 is arranged in second water-cooling channel 2-8, the second clearance type fire hole 2-5；Using two kinds of length
The second rectification section 2-7, alternately the mixture pipe of two kinds of length is used to make it in burner hearth along axially offsetting when circumferentially arranging,
The quantity for the mixture pipe that same circumference can be arranged can be increased；Wherein the second clearance type fire hole 2-5 fin 2-10 is by thermal coefficient
High material is made, such as copper.
First clearance type fire hole 1-5 of interior mixture pipe 1 is overlapped mutually the gap that compression is formed by fin 2-10 and forms,
The two sides of first clearance type fire hole 1-5 are the first water-cooling channel, and fin 2-10 strengthens the cooling gaseous mixture of the first water-cooling channel
Effect prevents to be tempered, and reduces flame temperature and burner temperature, can extend burner life, reduces pollutant emission.
Second clearance type fire hole 2-5 of outer mixture pipe 2 is overlapped mutually the gap that compression is formed by fin 2-10 and forms,
The two sides of second clearance type fire hole 2-5 are the second water-cooling channel 2-8, and it is cooling mixed that fin 2-10 strengthens the second water-cooling channel 2-8
The effect for closing gas, prevents to be tempered, and reduces flame temperature and burner temperature, can extend burner life, reduces pollutant
Discharge.
Secondary air channel 3 is forced air supply, and air quantity can be adjusted accurately by solenoid valve control, as shown in fig. 7, internal equipped with equipressure
Tucker 3-1 is uniformly arranged air outlet 3-2 going deep into burner hearth part along the axial and circumferential directions, and direction of air outlet is directed towards interior mixed
Close 1 gap of tracheae.
Isobaric tucker 3-1 is that the material of smooth outer surface is constituted, and Diameter Gradual Change can make secondary in secondary air channel 3
Wind is along axial isobaric distribution.
Second water inlet header 4 is grouped as by not connected multi-section, and every part is configured with a water inlet pipe, gives the second water cooling
Channel 2-8 uniformly supplies water.First water inlet header is grouped as by not connected multi-section, and every part is configured with a water inlet pipe, gives
First water-cooling channel 1-8 uniformly supplies water.
Outer mixture pipe 2 uses two-stage injector, can make to improve induction efficiency increase mass ratio of induced-to-inducing air, make outer mixture pipe 2
The First air coefficient of injection is more than 1, realizes premixed combustion.
Burner category cell burner, circle center's secondary air channel and the combination of interior mixture pipe can be individually formed air suspended type
Burner；And outer mixture pipe can also be individually formed two-stage injection all-premixing burner.
Specifically, referring to figure 1, figure 2 and figure 3, a kind of atmosphere injection type fire row combustor with cylindrical fire face, packet
Interior mixture pipe 1 is included, 2 concentric circumferences equidistant placement of several interior mixture pipes 1 and outer mixture pipe, circle center is secondary air channel
3, interior 1 peripheral disposition of mixture pipe has outer mixture pipe 2, and interior 1 front end of mixture pipe is equipped with the first water inlet header, interior mixture pipe
1 rear end is equipped with the first water outlet header, and outer 2 front end of mixture pipe is equipped with the second water inlet header 4, and outer 2 rear end of mixture pipe is equipped with the
Two water outlet headers 5.
From the point of view of gas circuit, the independent injection of the interior mixture pipe 1 of every of the utility model, combustion gas used in interior mixture pipe 1 is about
The 10%~20% of the total gas quantity of Zhan, gaseous mixture spray combustion gas by gas spray head the first ejector pipe 1-6, and injection air enters first
Injection section 1-1, the air-fuel ratio of injection air is less than 1, and the combustion gas of penetrating and the air of sucking are the first of the first injection section 1-1
After trunnion section 1-2 and the first diffuser 1-3 mixing, into the second rectification section 1-7 and the first rectangle dispensing section of interior mixture pipe 1
1-4, gaseous mixture are burning along axial direction uniformly through the first clearance type fire hole 1-5 2 gap of mixture pipe ejection outwardly of scrak type,
And the reduction of CO content is made by the Secondary Air that secondary air channel 3 sprays, the flue gas of burning is sent to burner hearth, realizes that inside smoke follows again
Ring.Be outside first clearance type fire hole 1-5 the first water-cooling channel 1-8, the first water-cooling channel 1-8 in fire hole section since circulation passage becomes
Narrow, cooling water flow velocity increases, and strengthens cooling effect, and due to the influence of fin 2-10, further increase water-cooled effect,
Reduce tempering risk.
It is seen on by water, the water that enters of the first water-cooling channel is provided by the first water inlet header, is divided into inside the first water inlet header
Multiple independent water cavities ensure each first water-cooling channel 1-8 water inlet uniformly, and the water outlet of the first water-cooling channel 1-8 enters first and goes out
Water header.
The outer mixture pipe 2 of the utility model is also independent injection, the 80%~90% of the total combustion gas of combustion gas Zhan used, it uses
Two-stage injector method injection air makes the air-fuel ratio of its injection be greater than 1, whole into second after the second diffuser 2-3 mixing
Section 2-7 and the second rectangle dispensing section 2-4 of equipressure is flowed, gaseous mixture enters from the second rectangle dispensing section 2-4 by between many fin 2-10
It is the second water-cooling channel 2-8, the second water-cooling channel 2- outside the second clearance type fire hole 2-5, the second clearance type fire hole 2-5 that gap is formed
8 in fire hole section since circulation passage narrows, cooling water flow velocity increases, and strengthens cooling effect, and due to the shadow of fin 2-10
It rings, further increases water-cooled effect, reduce tempering risk.Secondary Air is sent into burner hearth by the secondary air channel 3 of forced air supply,
Secondary air combustion aid is sent by inside 1 gap of mixture pipe of air outlet around secondary air channel 3.Interior gaseous mixture and Secondary Air are firing
After burning, the flue gas of formation is sent into burner hearth from outer 2 gap of mixture pipe, forms inside smoke recycling, reduces pollutant emission.From
It is seen on water route, the water that enters of the second water-cooling channel 2-8 is provided by the second water inlet header 4, is divided into inside the second water inlet header 4 multiple only
Vertical water cavity ensures each second water-cooling channel 2-8 water inlet uniformly, and the water outlet of the second water-cooling channel 2-8 enters the second water outlet header
5。
The utility model is using combustion gas classification and air classification and flue gas recirculating technique, about 80%~90% mixing
It is circumferentially sprayed in the outer mixture pipe 2 of gas burner shown in the utility model, gaseous mixture is logical by the second water cooling in fire hole
The cooling of road 2-8, reduces ignition temperature, effectively prevent tempering phenomenon, and continued to cool down by heat-exchanger rig in burner hearth, therefore fire
Flame temperature is lower than conventional fire grate type burner, effectively reduces NOxDischarge.10%~20% gaseous mixture is from interior mixing tube 1
Outside spray combustion, the flue gas and Secondary Air for generation of burning enter burner hearth from outer 2 gap of mixture pipe, reduce outer gaseous mixture
Oxygen concentration and temperature realize inside smoke recycling.
The uniform injection Secondary Air outward of central secondary air hose 3, ensure that the stability that interior mixture pipe 1 burns, combustion-supporting two
Secondary wind keeps combustion gas completely burned off, reduces the discharge of CO, and the flue gas that interior fire hole mixture combustion generates is brought into outside burner
Portion realizes flue gas recirculation, further decreases discharge.And due to the arrangement of interior mixture pipe 1 and secondary air channel 3, make this combustion
The enhancing of burner flame holding effectively prevent the generation of de- fiery phenomenon.
The utility model is using the circumferential classification of combustion gas, the recycling of air radial grading, inside smoke and water cooling burner flame
It improves efficiency of combustion and reduces nitrogen oxides, it can be achieved that 30mg/m3Ultralow NOxDischarge.The utility model has abandoned traditional fire grate type
Burner can be only formed the structure of flat flame front arrangement, and mixture pipe is made to form cylindrical fire face by circumference equidistant arrangement
The structure of arrangement keeps fire grate type burner compact-sized, small in size, is more suitable for the commercial gas such as cast aluminium silicon, copper fin, stainless steel
The cylindrical body furnace cavity of condenser boiler.Since interior mixture pipe 1 and outer mixture pipe 2 are numerous, single header will cause stream
Fast insufficient, the problems such as distribution is uneven, therefore, the utility model is by the be annularly arranged first water inlet header and the second water inlet header
At multi-section point, water inlet pipe is separately provided in every part for isolation in 4.Secondary air channel 3 is forced air supply, accurate to control by solenoid valve control
Secondary air flow processed, cooperation First air are suitable for the requirement of different operating conditions.
This burner category cell burner is adapted to a variety of burner hearths, circle center's secondary air channel and interior mixture pipe
Combination can be individually formed atmospheric burner；And outer mixture pipe can also be individually formed two-stage injection all-premixing burner.
Claims (10)
1. a kind of atmosphere injection type fire row combustor with cylindrical fire face, which is characterized in that including secondary air channel (3),
And interior mixture pipe (1) is enclosed for circle center is annularly arranged one with secondary air channel (3)；
Described secondary air channel (3) endcapped is provided with several air outlets on side wall, radiates in circle center towards surrounding secondary
Wind；
The interior mixture pipe (1) uses atmosphere injection type combustion system, and excess air coefficient is less than 1；Interior mixture pipe
(1) fire hole is outwardly disposed, forms cylindrical fire face, is in gap setting between adjacent interior mixture pipe (1)；
Interior mixture pipe (1) front end is equipped with the first water inlet header, and interior mixture pipe (1) rear end is equipped with the first water outlet collection
Case；The first water-cooling channel (1-8) between first water inlet header and the first water outlet header is along the fire hole side of interior mixture pipe (1)
Setting.
2. a kind of atmosphere injection type fire row combustor with cylindrical fire face according to claim 1, feature exist
In interior mixture pipe (1) includes sequentially connected decrement pyramid type the first injection section (1-1), the first trunnion section (1- of cylinder
2), circle turns the first diffuser (1-3) of square, the first rectification section (1-7), the first rectangle dispensing section (1- of circulation area decrement
4), the first ejector pipe (1-6) of pressure adjustable of one end setting in decrement the first injection of pyramid type section (1-1), and setting
The first clearance type fire hole (1-5) at the first rectangle dispensing section (1-4) outer outlets end；First water-cooling channel (1-8) is arranged in
First two sides clearance type fire hole (1-5).
3. a kind of atmosphere injection type fire row combustor with cylindrical fire face according to claim 2, feature exist
In there are two types of the first rectification sections (1-7) of length, interior mixture pipe (1) alternately to use two kinds when circumferentially arranging for setting altogether
The mixture pipe of length makes it axially inside be staggered in burner hearth.
4. a kind of atmosphere injection type fire row combustor with cylindrical fire face according to claim 1, feature exist
In interior mixture pipe (1) external concentric is provided with the outer mixture pipe (2) that a circle is annularly arranged；
The outer mixture pipe (2) is the burning of two-stage ejection premixing type, and excess air coefficient is greater than 1, and gas quantity used is
The 80%~90% of the total gas quantity of burner；Gas quantity used in interior mixture pipe (1) be the total gas quantity of burner 10%~
20%；Outer mixture pipe (2) fire hole is outwardly disposed, forms cylindrical fire face, is in gap between adjacent outer mixture pipe (2)
Setting；
Outer mixture pipe (2) front end is equipped with the second water inlet header (4), and outer mixture pipe (2) rear end is equipped with the second water outlet
Header (5)；The second water-cooling channel (2-8) between second water inlet header (4) and the second water outlet header (5) is along outer mixture pipe
(2) fire hole side setting.
5. a kind of atmosphere injection type fire row combustor with cylindrical fire face according to claim 4, feature exist
In the outer mixture pipe (2) includes tapered the second injection of the pyramid type section (2-1) of sequentially connected second level injector, second level
Injector cylinder aux. venturi section (2-2), second level injector circle turn the second diffuser (2-3) of square, the second rectification section (2-
7), the second rectangle dispensing section (2-4) of circulation area decrement, outlet end are arranged in tapered the second injection of pyramid type of second level injector
Level-one injector (2-9) in section (2-1), the second of the pressure adjustable that one end is arranged in level-one injector (2-9) arrival end
Ejector pipe (2-6), and setting is in the second clearance type fire hole (2-5) at the second rectangle dispensing section (2-4) outer outlets end；Second
Water-cooling channel (2-8) is arranged in second two sides clearance type fire hole (2-5).
6. a kind of atmosphere injection type fire row combustor with cylindrical fire face according to claim 5, feature exist
In there are two types of the second rectification sections (2-7) of length, outer mixture pipe (2) alternately to use two kinds when circumferentially arranging for setting altogether
The mixture pipe of length axially offsets its edge in burner hearth.
7. a kind of atmosphere injection type fire row combustor with cylindrical fire face according to claim 4, feature exist
In the first water inlet header and the second water inlet header (4) include several independent water cavities, and each independent water cavity is connected to one
Corresponding first water-cooling channel or the second water-cooling channel (2-8), the water outlet of the first water-cooling channel enter the first water outlet header, and second
The water outlet of water-cooling channel (2-8) enters the second water outlet header (5).
8. a kind of atmosphere injection type fire row burning with cylindrical fire face according to any one of claim 2-7
Device, which is characterized in that clearance type fire hole is by the fin (2- for being alternately fixed on corresponding rectangle dispensing section outer outlets end two sides
10) compression is formed；Gap is as clearance type fire hole between the fin (2-10) of two sides is mutually inserted the fin to be formed (2-10).
9. a kind of atmosphere injection type fire row combustor with cylindrical fire face according to claim 1, feature exist
In the secondary air channel (3) is internal to be coaxially arranged with isobaric tucker (3-1), is going deep into burner hearth part along the axial and circumferential directions
It is uniformly arranged air outlet (3-2), direction of air outlet is directed towards interior mixture pipe (1) gap.
10. a kind of atmosphere injection type fire row combustor with cylindrical fire face according to claim 9, feature exist
In the isobaric tucker (3-1) is arranged in cone, and diameter is from upstream to downstream gradual change increase, for making secondary air channel
(3) inner second air is along axial isobaric distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821500153.2U CN208936152U (en) | 2018-09-13 | 2018-09-13 | A kind of atmosphere injection type fire row combustor with cylindrical fire face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821500153.2U CN208936152U (en) | 2018-09-13 | 2018-09-13 | A kind of atmosphere injection type fire row combustor with cylindrical fire face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208936152U true CN208936152U (en) | 2019-06-04 |
Family
ID=66720973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821500153.2U Expired - Fee Related CN208936152U (en) | 2018-09-13 | 2018-09-13 | A kind of atmosphere injection type fire row combustor with cylindrical fire face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208936152U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297019A (en) * | 2018-09-13 | 2019-02-01 | 西安交通大学 | A kind of air suspended type fire row combustor with cylindrical fire face |
| CN116538156A (en) * | 2023-07-06 | 2023-08-04 | 中国空气动力研究与发展中心高速空气动力研究所 | Spatially distributed circular seam injector device |
-
2018
- 2018-09-13 CN CN201821500153.2U patent/CN208936152U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109297019A (en) * | 2018-09-13 | 2019-02-01 | 西安交通大学 | A kind of air suspended type fire row combustor with cylindrical fire face |
| CN116538156A (en) * | 2023-07-06 | 2023-08-04 | 中国空气动力研究与发展中心高速空气动力研究所 | Spatially distributed circular seam injector device |
| CN116538156B (en) * | 2023-07-06 | 2023-09-22 | 中国空气动力研究与发展中心高速空气动力研究所 | Spatially distributed circular seam injector device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109297019A (en) | A kind of air suspended type fire row combustor with cylindrical fire face | |
| CN107702146B (en) | For the indoor porous evaporator medium pipe of micro gas turbine engine burning | |
| CN112460567B (en) | Gas boiler with concentric single pipe ring water-cooling combustion and heat exchange | |
| CN102537951B (en) | Central diffusion type tiny-oil ignition combustor | |
| CN208936152U (en) | A kind of atmosphere injection type fire row combustor with cylindrical fire face | |
| CN112212328A (en) | Burner and use thereof | |
| CN107255277A (en) | A kind of water cooling finned tube fire row premixes low NO entirely | |
| CN110822430A (en) | Low-nitrogen combustor based on multistage swirler | |
| CN207716416U (en) | The continous way Self-heat-storage flameless burner of the double preheatings of air/gas | |
| CN105465786A (en) | Low-NOx combustor suitable for various low-heat-value/low-pressure fuel gases | |
| CN112212327A (en) | Combustion part and combustor | |
| CN102278758A (en) | Heating device of radiant tube | |
| CN103629663B (en) | Vortex burner | |
| CN208720215U (en) | A kind of circumference type premixes water-cooled low NO entirely | |
| CN214249581U (en) | Burner and gas stove, low-nitrogen burner, gas water heater and gas heating water heater using same | |
| CN202141052U (en) | Burner with radiant pipe | |
| WO2020259577A1 (en) | Combustor with low nitrogen oxide emission | |
| CN107906516A (en) | A kind of continous way Self-heat-storage flameless burner of the double preheatings of air/gas | |
| WO2022096021A1 (en) | Burner and applications thereof | |
| CN2924318Y (en) | Combustion-supporting gas flameless burner | |
| CN109695875A (en) | A kind of more injection tubular type fire pieces | |
| CN215723204U (en) | Diffusion type low NOx self-preheating radiant tube burner with flue gas backflow | |
| CN205155958U (en) | Be suitable for low NOx combustor of various low heat values / low pressure gas | |
| CN111121005B (en) | Decoupling gas burner and using method thereof | |
| CN209763073U (en) | Low Nox coke oven gas burner |
Legal Events
| 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: 20190604 Termination date: 20190913 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |