CN208418701U - A kind of low-NOx combustor for biomass and combustion of natural gas - Google Patents
A kind of low-NOx combustor for biomass and combustion of natural gas Download PDFInfo
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- CN208418701U CN208418701U CN201820693719.1U CN201820693719U CN208418701U CN 208418701 U CN208418701 U CN 208418701U CN 201820693719 U CN201820693719 U CN 201820693719U CN 208418701 U CN208418701 U CN 208418701U
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Abstract
The utility model discloses a kind of low-NOx combustor for biomass and combustion of natural gas, including central tube, the outside of central tube is successively socketed with interior First air sleeve, inner second air sleeve, natural gas windband cylinder and outer second air sleeve；Central tube, interior First air sleeve, inner second air sleeve, natural gas windband cylinder are connected to precombustion chamber with one end of outer second air sleeve；It is provided with burnout degree sleeve outside precombustion chamber, is connected to inside burnout degree sleeve and precombustion chamber；The one end being provided in the central tube, which is provided with, extends to the indoor gun body and high-energy igniter for igniting of pre-burning, and provides gun body and high-energy igniter in the igniting propeller of center in-pipe.Partial combustion temperature is excessively high caused by the burner can be avoided fuel aggregation, to inhibit the formation of thermal NO x, and enhances the adaptability to combustion material, improves the stability of biomass or combustion of natural gas.
Description
Technical field
The utility model belongs to Thermal Energy and Power Engineering technical field；It is related to a kind of turbulent burner, and in particular to a kind of
Low-NOx combustor for biomass and combustion of natural gas.
Background technique
China's energy resource structure is at present based on coal, however coal generates a large amount of NOx, SO in combustion2Etc. corrosivity
Gas and particulate matter, greenhouse gases are directly discharged to will cause the significant deterioration of atmospheric environment in air without stringent processing.According to
Statistics, fire coal are used as atmosphere PM important sources, its contribution is more than 33% in haze forming process.PM10 can enter respiratory tract,
PM2.5 can then enter alveolar and blood, very big to human health damage.Therefore, greatly developing clean energy technology becomes liter
Grade China energy resource structure, pushes a vital task on China's progress road.
The nitrogen content and sulfur content of natural gas are very low, therefore the fuel NO of its burning generation and sulfide etc.
Pollutant is far below the fossil fuels such as coal oil.According to 2035 world energy outlooks that BP company issues, natural gas conduct
Clean energy resource is expected to become the fossil fuel most increased fastly.However, temperature is higher in combustion for natural gas, primary zone
It is easily oxidized to NOx under interior nitrogen high temperature, generates thermal NO x and causes damages to environment.Therefore, combustion of natural gas is come
It says, one of them key technology is to control thermal NO x discharge.Biomass is only second to as renewable energy, consumption
Petroleum, coal and natural gas occupy the 4th.Its CO generated in combustion2It is substantially reduced compared to coal, is conducive to change
Kind greenhouse effects.Biomass energy is from a wealth of sources simultaneously, and volatile matter content is high, and content of ashes is low, and sulfur content is low, is a kind of environment
Close friend, the energy of economy and durability.
However, biomass fuel is because it is mostly with stalk, branch and sawdust etc. for raw material, reserves are more bright with seasonal variations
It is aobvious.In non-time autumn and winter using biomass fuel as the single energy, easily there are the realistic problems such as supply deficiency.Simultaneously because coal changes
Gas policy execution, natural gas heats in winter, and period, also easily generation gas was waste.Accordingly, it is considered to easily be supplied not to biomass and natural gas
The period of foot mutually staggers, and two kinds of fuel are mixed and burned, can effectively solve imeliness problem, makes using more flexible extensive.
And be mixed and burned natural gas and biomass, ignition temperature burning more independent than biomass is much higher, may advantageously facilitate life
Substance kindling, while improving combustion rate.However, since natural gas and biomass are as the two different fuel of gas-solid, burning
Property difference is larger, and current combustion device is only applicable to natural gas or biomass is individually burnt, and there is no be suitble to two kinds of fuel mixing
The burner for stablizing burning occurs.Meanwhile needing to reduce NOx emission as far as possible in burning, in order to avoid cause environmental problem.
Combustion air is segmented by multistage air distribution and is sent into combustion by Typical Representative of the air classification as low NOx combusting technology
Region is burnt, fuel-rich regions and local reduction atmosphere is formed, obviously NOx can be inhibited to generate in fuel combustion process.Meanwhile
Air classification technology can also suitably to reduce combustion of natural gas temperature, it is raw to reduce thermal NO x by control burning intake
At.Rational design of the utility model by burner, adaptability of the strengthen burning device to combustion material, raising biomass/day
The stability of right gas burning is generated with NOx during reduction biomass/combustion of natural gas, is played to simplify burner and save and be fired
Expect the effect of cost.
Utility model content
The utility model provides a kind of low-NOx combustor for biomass and combustion of natural gas；The burner can
Partial combustion temperature is excessively high caused by avoiding fuel from assembling, to inhibit the formation of thermal NO x, and enhances to burning
The adaptability of raw material improves the stability of biomass or combustion of natural gas.
The technical solution of the utility model is: a kind of low-NOx combustor for biomass and combustion of natural gas, including in
Heart pipe, the outside of central tube are successively socketed with interior First air sleeve, inner second air sleeve, natural gas windband cylinder and outer second air set
Cylinder；Central tube, interior First air sleeve, inner second air sleeve, natural gas windband cylinder are connected in advance with one end of outer second air sleeve
Fire room；It is provided with burnout degree sleeve outside precombustion chamber, is connected to inside burnout degree sleeve and precombustion chamber；It is provided in the central tube
One end be provided with and extend to the indoor gun body and high-energy igniter for igniting of pre-burning, and provide gun body and high-energy ignition
Igniting propeller of the device in center in-pipe；The exit of the inner second air sleeve is provided with equally distributed multiple second
Radial baffle；The exit of inner second air sleeve is additionally provided with the flaring of the inner second air for adjusting inner second air amount；The day
The exit of right gas windband cylinder is provided with the equally distributed multiple first radial baffles；And first radial baffle and the second radial gear
Plate distribution arrangement interlocks.
Further, the utility model is also characterized by:
Wherein the outlet of circular passage is burnout degree direct current spout between burnout degree sleeve and precombustion chamber, straight by burnout degree
Stream spout is passed through burnout degree into precombustion chamber, and burnout degree eddy flow spout is provided between the circular passage and precombustion chamber.
Wherein burnout degree eddy flow spout is circumferentially symmetrically opened up along the outlet axes direction of precombustion chamber, and burnout degree eddy flow spout
Circumferentially positioned angle be 25 ° -35 °.
Wherein the diameter ratio of burnout degree direct current spout and burnout degree eddy flow spout is 1:1.5-2.
Wherein the circular passage between interior First air sleeve and central tube is used to convey biomass fuel to precombustion chamber, and interior
First air sleeve is equipped with interior First air entrance.
Wherein the circular passage between inner second air sleeve and interior First air sleeve is used to convey inner second air to precombustion chamber,
And inner second air entrance is offered on inner second air sleeve, the second tangential swirl blade is provided in inner second air sleeve.
Wherein circumferential baffle, circumferential baffle are provided in the circular passage between inner second air sleeve and interior First air sleeve
The distance between inner second air sleeve is the 1/4-1/3 of the circular passage annular gap.
Wherein the circular passage between natural gas windband cylinder and inner second air sleeve is used to convey natural gas to precombustion chamber, and
Natural gas windband cylinder is equipped with natural gas wind entrance.
Wherein the circular passage between outer second air sleeve and natural gas windband cylinder is used to convey outer second air to precombustion chamber,
Outer second air sleeve is equipped with outer second air entrance, is provided with the first tangential swirl blade in outer second air sleeve.
Wherein gun body is oil gun or gas gun.
Compared with prior art, the utility model has the beneficial effects that the burner improves life by rationalization's structure
Substance or natural gas individually burns or the stability of multifuel combustion, while reducing the NOx generated in combustion process.The burner air feed side
Formula is divided into that interior First air, inner second air, Secondary Air, outer second air, burnout degree therefore can be for supplies in natural gas or direct current
Different fuel by changing different air ducts air-supply purposes, and then adjusts pre-burning room air pair in the case where being passed through burnout degree
The disturbance situation and ignition temperature of fuel, part caused by being avoided while ensuring that flameholding is abundant due to excessive fuel
Temperature is excessively high, to reduce the generation of thermal NO x.For example, individually burning for biomass, interior First air channel conveying combustion is selected
Expect, secondary air passage and burnout degree air duct are blown in selection inner second air air duct, direct current, and outer second air air duct is closed；For day
Right gas individually burns, and interior First air and natural gas wind air duct is selected to lead to natural gas, inner second air air duct, outer second air air duct and combustion
Wind air duct air-supply to the greatest extent；For biomass and natural gas multifuel combustion, interior First air channel is selected to convey biomass, natural gas wind channel is defeated
Natural gas is sent, inner second air air duct, outer second air air duct and SOFA wind air duct are blown；In this way, by the rationalization of burner,
Strengthen burning device plays the role of simplifying burner and saves fuel cost to the adaptability of combustion material.
Further, the utility model inner second air channel tail end is provided with the second radial baffle, and baffle number is 12,
And it is uniformly distributed；Second radial baffle is connected with circumferential baffle, and baffle is between interior First air sleeve and inner second air sleeve
It is 1/3~1/4 annular gap with inner second air sleeve distance, so that part inner second air directive natural gas straight in circular passage
Flow wind direction, First air direction in the inner second air directive of part, be conducive to inner second air with from natural gas air duct and interior First air
The fuel that air duct is each led into is uniformly mixed, and improves efficiency of combustion and stability.Eddy flow inner second air is rolled up from jet boundary simultaneously
The smoke backflow of a large amount of high-temperature low-oxygens is inhaled, so that reducing atmosphere is presented in primary zone, promotes NOx reduction in combustion process, into one
Step reduces NOx and generates.
Further, natural gas wind channel tail end is provided with the first radial baffle, and baffle number is 12, is uniformly distributed；
The radial baffle of the radial baffle and the inner second air channel tail end of the natural gas wind channel tail end is interspersed, and makes
In natural gas direct current wind channel the logical natural gas of institute be spaced apart with institute's blowing air in inner second air channel, be conducive to natural gas and
Air is uniformly mixed, while also to avoid natural gas from coalesce caused partial combustion temperature in precombustion chamber excessively high for baffle, avoids heat
Power type NOx is generated.
Further, the direct current burnout degree that the utility model burnout degree direct current spout generates can prevent burner outlet knot
Slag, the eddy flow burnout degree volume smoking gas that burnout degree eddy flow spout generates, can reduce partial combustion temperature, NOx is inhibited to generate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the cross-sectional view in the direction A-A in Fig. 1；
Fig. 3 is the cross-sectional view in the direction B-B in Fig. 1；
Fig. 4 is C-C sectional view in Fig. 1.
In figure: 1 is igniting propeller；2 be gun body；3 be high-energy igniter；It is managed centered on 4；5 be interior First air sleeve；6
For interior First air entrance；7 be inner second air entrance；8 be inner second air sleeve；9 be natural gas wind entrance；10 be natural gas windband
Cylinder；11 be outer second air entrance；12 be outer second air sleeve；13 be burnout degree entrance；14 be burnout degree sleeve；15 be precombustion chamber
Shell；16 be precombustion chamber；17 be burnout degree direct current spout；18 be burnout degree eddy flow spout；19 are flared for inner second air；20 are
First radial baffle；21 be the second radial baffle；22 be the first tangential swirl blade；23 be the second tangential swirl blade；24 are
Circumferential baffle.
Specific embodiment
The technical solution of the utility model is further illustrated in the following with reference to the drawings and specific embodiments.
The utility model provides a kind of low-NOx combustor for biomass and combustion of natural gas, as shown in Figure 1, packet
Central tube 4 is included, central tube 4 is internally provided with gun body 2 and high-energy igniter 3, and preferred gun body 2 is oil gun or gas gun；In
One end of heart pipe 4 is provided with igniting propeller 1, and igniting propeller 1 can be such that gun body 2 and high-energy igniter 3 moves in central tube 4
It is dynamic；The other end of central tube 4 is connected to precombustion chamber 16, and gun body 2 and high-energy igniter 3 are extend into precombustion chamber 16；Precombustion chamber
16 inner wall is arc.
The outside of central tube 4 is provided with interior First air sleeve 5, the circular passage between interior First air sleeve 5 and central tube 4
For an interior air duct, and interior primary air nozzle 6 is provided on interior First air sleeve 5；The outside of interior First air sleeve 5 is provided with interior secondary
Windband cylinder 8, circular passage between inner second air sleeve 8 and interior First air sleeve 5 are inner second air air duct, and interior secondary big envelope
Inner second air mouth 7 is provided on cylinder 8；The outside of inner second air sleeve 8 is provided with natural gas windband cylinder 10, natural gas windband cylinder 10
Circular passage between inner second air sleeve 8 is natural gas wind air duct, is provided with natural gas air port 9 on natural gas windband cylinder 10；
Outer second air sleeve 12, the ring between outer second air sleeve 12 and natural gas windband cylinder 10 are provided with outside natural gas windband cylinder 10
Shape channel is outer second air channel, and outer second air mouth 11 is provided on outer second air sleeve 12.And above-mentioned interior an air duct, interior two
Secondary air duct, natural gas air duct and outer second air road are connected to precombustion chamber 16.
Pre-burning room housing 15 is the external shell of precombustion chamber 16, and burnout degree sleeve is provided with outside pre-burning room housing 15
14, the circular passage between burnout degree sleeve 14 and pre-burning room housing 15 is burnout degree air duct, and the outlet in burnout degree air duct is
Burnout degree direct current spout 17, and burnout degree eddy flow spout 18 is additionally provided between burnout degree air duct and combustion chamber 16, and burnout degree
Eddy flow spout 18 is circumferentially symmetrically opened up along 16 outlet axes direction of precombustion chamber, and preferably its number is 20, and burnout degree eddy flow spout
The range at 18 circumferentially positioned angles is 25 ° -35 °, and burnout degree is enable to form swirling eddy around precombustion chamber outlet axes direction.
As shown in Fig. 2, being evenly distributed with several the second tangential swirl blades 23 in inner second air sleeve 8, second is tangential
The eddy flow angular range of swirl vane 23 is 50 ° -70 °；As shown in figs. 1 and 4, the going out close to combustion chamber 16 of inner second air sleeve 8
The second radial baffle 21 and axial baffle 24 are provided on inner wall at mouthful, and between axial baffle 24 and inner second air sleeve 8
Distance be inner second air channel diameter 1/4-1/3, and as shown in Figure 1, the exit of inner second air sleeve 8 is provided in
Secondary Air flaring 19, and it is 20 ° -40 ° that inner second air, which is flared the angle of 19 flaring outs, inner second air flaring 19 is arranged in pre-burning
In room 16.As shown in figure 4, the exit of natural gas windband cylinder 10 is provided with the first radial baffle 20, the first radial baffle 20.
Wherein the second radial baffle 21 and the first radial baffle 20 are staggered.
As shown in figure 3, the first tangential swirl blade 22 is provided in outer second air sleeve 12, the first tangential swirl blade 22
Eddy flow angle be 50 ° -70 °.
The course of work of the utility model is:
Firstly, Secondary Air in inner second air, direct current and outer second air are passed through inner second air entrance 7, natural gas wind respectively
Entrance 9 and outer second air entrance 11 are passed through inner second air air duct, natural gas wind air duct and outer second air air duct, and enter pre-burning
In room 16, at least 1 minute purging is carried out to precombustion chamber 16.
Then igniting propeller 1 is moved forwards, high-energy igniter 3 and gun body 2 is sent to specified ignition location.High energy
Igniter 3 works, and lights oil plant or the combustion gas of the outlet of gun body 2.For the mixed combustion operating condition of biomass or natural gas or both, adjusts and throw
It is as follows with wind mode: individually to burn for biomass, select interior First air air duct to convey fuel, select inner second air air duct, day
Right gas wind air duct and burnout degree air duct are blown, and outer second air air duct is closed；It individually burns for natural gas, selects interior First air wind
Road and natural gas wind air duct lead to natural gas, and inner second air air duct, outer second air air duct and burnout degree air duct are blown；For biomass
With natural gas multifuel combustion, select in First air air duct convey biomass, natural gas wind air duct convey natural gas, inner second air air duct,
Outer second air air duct and burnout degree air duct are blown；It is penetrated in this way, inner second air is divided by the circumferential baffle 24 in inner second air air duct
To biomass and directive natural gas two parts, the second radial baffle 21 in inner second air air duct and the in natural gas wind air duct
One radial baffle 20 is interspersed, so that the part inner second air of directive natural gas is uniformly mixed with natural gas, avoids natural gas
Assemble and cause partial combustion temperature excessively high, the generation of thermal NO x can be effectively reduced；First tangential swirl blade 22 and second
The swirl secondary air volume that tangential swirl blade 23 generates inhales high ambient temperatures flue gas and stablizes burning, while oxygen in the high-temperature flue gas to flow back
Gas content is lower, further decreases NOx generation.
For independent biomass burning, biomass is sent by interior First air entrance 6 and mixes with air object；Natural gas is fired
It burns individually, is sent into natural gas with natural gas wind entrance 9 by interior First air 6；For natural gas and the mixed combustion of biomass, by interior First air
Entrance 6 is sent into biomass, is sent into natural gas by natural gas wind entrance 9.
Burnout degree is sent by burnout degree entrance 13, is flowed in burnout degree air duct, and by opening up in pre-burning room housing 15
Direct current spout 17 and eddy flow spout 18 spray into precombustion chamber 16.Direct current spout 17 is opened in 15 end outer rim of pre-burning room housing along axis
If burnout degree direct current is made to spray into precombustion chamber 16, burner outlet slagging is prevented；Burnout degree eddy flow spout 18 exports axis along precombustion chamber
Line direction circumferentially symmetrically opens up, and preferably number is 20, and the circumferentially positioned angle of burnout degree eddy flow spout 18 is 25 ° -35 °, makes burnout degree
Swirling eddy can be formed around 16 outlet axes direction of precombustion chamber, so that burnout degree makes full combustion of fuel in supplemental oxygen
Simultaneously, moreover it is possible to which volume inhales a large amount of high-temperature flue gas, stablizes burning in precombustion chamber 16, while building anaerobic environment, maintains in precombustion chamber 16
Reducing atmosphere promotes NOx reduction.
After 16 flameholding of precombustion chamber, igniting propeller 3 is acted, and high-energy igniter 1 and gun body 2 are retracted central tube 4
It is interior, to prolong its service life.
The application method of the utility model are as follows:
When independent biomass burning, biomass mixes with air object and is sent by interior First air entrance 6, and in interior First air
It is flowed in air duct；Inner second air is sent by inner second air entrance 7, and is flowed in interior secondary air passage；In direct current Secondary Air by
Natural gas wind entrance 9 is sent into, and is flowed in natural gas wind air duct；The closing of outer second air entrance 11 does not have to；Burnout degree is by after-flame
Wind entrance 13 is sent into, and is flowed in burnout degree air duct.
When individually burning natural gas, natural gas is sent by interior First air entrance 6 and natural gas wind entrance 9；Inner second air
It is sent by inner second air entrance 7, and is flowed in interior secondary air passage；Outer second air is sent by outer second air entrance 11, and
It is flowed in outer second air air duct；Burnout degree is sent by burnout degree entrance 13, and is flowed in burnout degree air duct.
When biomass and when natural gas multifuel combustion, biomass mixes with air object and is sent by interior First air entrance 6, and inside one
It is flowed in secondary wind air duct；Inner second air is sent by inner second air entrance 7, and is flowed in interior secondary air passage；Natural gas is by day
Right gas wind entrance 9 is sent into, and is flowed in natural gas wind air duct；Outer second air is sent by outer second air entrance 11, and outside two
It is flowed in secondary wind air duct；Burnout degree is sent by burnout degree entrance 13, and is flowed in burnout degree air duct.
The working principle of the utility model is: circumferential baffle 24 and the second radial baffle are arranged in inner second air sleeve 8
21, the radial baffle 20 of setting first in natural gas windband cylinder 10, the first radial baffle 20 and the second radial baffle 21 staggeredly divide
Cloth can be such that the part inner second air of directive natural gas is uniformly mixed with natural gas when so that being passed through fuel and have natural gas；Together
When, which also scatter natural gas, avoids gas accumulation and causes partial combustion temperature excessively high, reduces thermal NO x
It generates；When burner individually burns natural gas, make combustion adjuvant using air, theoretical temperature combustion can reach 2300 DEG C, and hot
Power type NOx is that the N2 in air aoxidizes formation under the peak temperature of combustion flame, very big to the dependence of temperature.Work as ignition temperature
When more than 1500 DEG C, temperature is every to increase by 100 DEG C, and reaction speed will increase 6~7 times.Therefore, it when burning natural gas, to control
Channel intake and air inlet are distributed, and guarantee that average combustion temperature is lower than 1500 DEG C in precombustion chamber, and partial combustion temperature is as far as possible
It reduces, generates thermal NO x to avoid combustion oxidation.
It is tangential that the second tangential swirl blade 23 and second is respectively arranged in inner second air sleeve 8 and outer second air sleeve 12
Swirl vane 22 makes inner second air and outer second air eddy flow；Meanwhile burnout degree is sent by burnout degree entrance, and by precombustion chamber shell
The burnout degree eddy flow spout 18 and burnout degree direct current spout 17 opened up in body 15 sprays into precombustion chamber；Burnout degree direct current spout 17 is in pre-
Combustion 15 end outer rim of room housing is opened up along axis, so that burnout degree direct current is sprayed into precombustion chamber, is prevented burner outlet slagging；Burnout degree
Eddy flow spout 18 is circumferentially symmetrically opened up along 16 outlet axes direction of precombustion chamber, enables burnout degree around 16 outlet axes of precombustion chamber
Direction forms swirling eddy.In this way, Whirl deposite tank is while supplemental oxygen makes full combustion of fuel, moreover it is possible to which volume inhales a large amount of high temperature cigarettes
Gas stablizes pre-burning Indoor Combustion, while building anaerobic environment, maintains reducing atmosphere in precombustion chamber, promotes NOx reduction.
Claims (10)
1. a kind of low-NOx combustor for biomass and combustion of natural gas, which is characterized in that including central tube (4), central tube
(4) outside is successively socketed with interior First air sleeve (5), inner second air sleeve (8), natural gas windband cylinder (10) and outer second air
Sleeve (12)；Central tube (4), interior First air sleeve (5), inner second air sleeve (8), natural gas windband cylinder (10) and outer second air
One end of sleeve (12) is connected to precombustion chamber (16)；Burnout degree sleeve (14), burnout degree sleeve are provided with outside precombustion chamber (16)
(14) it is connected to precombustion chamber (16) inside；
The one end being provided in the central tube (4) be provided with extend in precombustion chamber (16) for igniting gun body (2) and
High-energy igniter (3), and the igniting propeller (1) that offer gun body (2) and high-energy igniter (3) move in central tube (4)；
The exit of the inner second air sleeve (8) is provided with the equally distributed multiple second radial baffles (21)；Inner second air
The exit of sleeve (8) is additionally provided with the flaring of the inner second air for adjusting inner second air amount (19)；
The exit of the natural gas windband cylinder (10) is provided with the equally distributed multiple first radial baffles (20)；
Described first radial baffle (20) and second radial baffle (21) distribution arrangement interlock.
2. the low-NOx combustor according to claim 1 for biomass and combustion of natural gas, which is characterized in that described
The outlet of circular passage is burnout degree direct current spout (17) between burnout degree sleeve (14) and precombustion chamber (16), straight by burnout degree
Stream spout (17) is passed through burnout degree into precombustion chamber (16), and burnout degree rotation is provided between the circular passage and precombustion chamber (16)
It flows spout (18).
3. the low-NOx combustor according to claim 2 for biomass and combustion of natural gas, which is characterized in that described
Burnout degree eddy flow spout (18) is circumferentially symmetrically opened up along the outlet axes direction of precombustion chamber (16), and burnout degree eddy flow spout (18)
Circumferentially positioned angle be 25 ° -35 °.
4. the low-NOx combustor according to claim 3 for biomass and combustion of natural gas, which is characterized in that described
The diameter ratio of burnout degree direct current spout (17) and burnout degree eddy flow spout (18) is 1:1.5-2.
5. the low-NOx combustor according to claim 1 for biomass and combustion of natural gas, which is characterized in that described
Circular passage between interior First air sleeve (5) and central tube (4) is used to convey biomass fuel, and interior one to precombustion chamber (16)
Secondary windband cylinder (5) is equipped with interior First air entrance (6).
6. the low-NOx combustor according to claim 1 for biomass and combustion of natural gas, which is characterized in that described
Circular passage between inner second air sleeve (8) and interior First air sleeve (5) is used to convey inner second air to precombustion chamber (16), and
It is offered on inner second air sleeve (8) inner second air entrance (7), is provided with the second tangential swirl leaf in inner second air sleeve (8)
Piece (23).
7. the low-NOx combustor according to claim 6 for biomass and combustion of natural gas, which is characterized in that described
Circumferential baffle (24), circumferential baffle are provided in circular passage between inner second air sleeve (8) and interior First air sleeve (5)
(24) be with the distance between inner second air sleeve the circular passage annular gap 1/4-1/3.
8. the low-NOx combustor according to claim 1 for biomass and combustion of natural gas, which is characterized in that described
Circular passage between natural gas windband cylinder (10) and inner second air sleeve (8) is used to convey natural gas to precombustion chamber (16), and
Natural gas windband cylinder (10) is equipped with natural gas wind entrance (9).
9. the low-NOx combustor according to claim 1 for biomass and combustion of natural gas, which is characterized in that described
Circular passage between outer second air sleeve (12) and natural gas windband cylinder (10) is used to convey outer second air to precombustion chamber (16),
Outer second air sleeve (12) is equipped with outer second air entrance (11), is provided with the first tangential swirl leaf in outer second air sleeve (12)
Piece (22).
10. the low-NOx combustor according to claim 1 for biomass and combustion of natural gas, which is characterized in that described
Gun body (2) is oil gun or gas gun.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820693719.1U CN208418701U (en) | 2018-05-10 | 2018-05-10 | A kind of low-NOx combustor for biomass and combustion of natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820693719.1U CN208418701U (en) | 2018-05-10 | 2018-05-10 | A kind of low-NOx combustor for biomass and combustion of natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208418701U true CN208418701U (en) | 2019-01-22 |
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ID=65114979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820693719.1U Expired - Fee Related CN208418701U (en) | 2018-05-10 | 2018-05-10 | A kind of low-NOx combustor for biomass and combustion of natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208418701U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413382A (en) * | 2018-05-10 | 2018-08-17 | 西安交通大学 | A kind of burner for individually burning or being mixed and burned for biomass and natural gas |
| CN112594689A (en) * | 2020-12-15 | 2021-04-02 | 北京理工大学 | High-temperature high-speed stable combustion method and device based on multistage jet flow and rotational flow |
-
2018
- 2018-05-10 CN CN201820693719.1U patent/CN208418701U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413382A (en) * | 2018-05-10 | 2018-08-17 | 西安交通大学 | A kind of burner for individually burning or being mixed and burned for biomass and natural gas |
| CN108413382B (en) * | 2018-05-10 | 2024-03-29 | 西安交通大学 | Burner for single combustion or mixed combustion of biomass and natural gas |
| CN112594689A (en) * | 2020-12-15 | 2021-04-02 | 北京理工大学 | High-temperature high-speed stable combustion method and device based on multistage jet flow and rotational flow |
| CN112594689B (en) * | 2020-12-15 | 2021-11-05 | 北京理工大学 | High-temperature high-speed stable combustion method and device based on multistage jet flow and rotational flow |
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