CN208475333U - A kind of coal dust and natural gas integral type dual fuel burner - Google Patents
A kind of coal dust and natural gas integral type dual fuel burner Download PDFInfo
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- CN208475333U CN208475333U CN201821090624.7U CN201821090624U CN208475333U CN 208475333 U CN208475333 U CN 208475333U CN 201821090624 U CN201821090624 U CN 201821090624U CN 208475333 U CN208475333 U CN 208475333U
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 178
- 239000003345 natural gas Substances 0.000 title claims abstract description 90
- 239000002817 coal dust Substances 0.000 title claims abstract description 75
- 239000000446 fuel Substances 0.000 title claims abstract description 49
- 230000009977 dual effect Effects 0.000 title claims abstract description 20
- 238000002485 combustion reaction Methods 0.000 claims abstract description 47
- 239000003245 coal Substances 0.000 claims abstract description 39
- 239000007789 gas Substances 0.000 claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 239000000567 combustion gas Substances 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000009529 body temperature measurement Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 238000003786 synthesis reaction Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 11
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 3
- 238000013507 mapping Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 210000004894 snout Anatomy 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Abstract
A kind of coal dust and natural gas integral type dual fuel burner, including axial parallel First air and coal dust channel and natural gas channel, natural gas channel is in First air and coal dust channel, once wind and coal dust channel component are then sequentially arranged from preceding on First air and coal dust channel, inner second air component and outer second air component, First air and coal powder entrance are located at the front of First air and coal dust channel component, center combustion air component is disposed on natural gas channel, gas inlet is located at center combustion air forward portion, the outlet of First air and coal dust channel connects precombustion chamber, the outlet in natural gas channel is provided with natural gas burner assembly, natural gas burner assembly is located in precombustion chamber.The utility model effectively combines coal dust with natural gas combustion technology, can individually combusting coal fines, also can individually burn natural gas, it is also able to carry out double fuel compound combustion simultaneously, user is facilitated to select, while also improving the reliability of the long-term continuous operation fuel supply of boiler.
Description
Technical field
The invention belongs to boiler-burner technical field, in particular to a kind of coal dust and natural gas integral type double fuel burn
Device.
Background technique
At present in the boiler combustion equipment in China, oil burner, coal burner and gas burner are relatively common,
It but is all single combustion technology, when fuel changes, related burner is also required to replace or even boiler body and burning
System requires to be transformed, and causes greatly inconvenient and a large amount of economic costs addition to user, therefore provide a kind of reliable coal
Powder and natural gas integral type dual fuel burner very it is necessary to.In addition, the demand with market is continuously increased, also have at present few
Coal dust simply, mechanically combine with two kinds of burners of natural gas by amount enterprise, i.e., coal dust, combustion are installed on a boiler
Two kinds of independent burners of gas are carried out using this mode limitation is big, investment is high, effect is undesirable.
In addition, boiler-burner generally carries out burning operation using single-fuel, general independent combusting coal fines, oil plant or
The dual fuel burner of natural gas, few maturations comes into operation.With the further tightening of national environmental protection policy, various regions coal changes
The tide of gas is unfolded in high gear, but there is also certain difficulties at present for comprehensive, enough supply of natural gas, while I
State is a big coal country again, and coal-fired clean and effective utilizes, and the market space is still very big.China is at present in the coal-fired pot of operation
Furnace enormous amount, in the whole nation, coal of carrying out in an all-round way changes gas policy and is also required to the quite long transitional period, thus develops a kind of coal dust and combustion
Gas double fuel combustion apparatus seems very necessary to meet the market demand.Still there is 70% or so power plant application combustion in China at present
Coal fire power technology, and the application of the boiler in 90% or more thermal power plant is pulverized-coal fired boiler, therefore pulverized-coal fired boiler is to fire at present
The coal high-efficiency cleaning coal-burning boiler form most mature, most widely used using technology.Natural gas due to not nitrogenous in its ingredient,
It is the fuel of relative clean.Domestic neat gas burner is substantially the external product of introduction at present, and is single day
Right gas combustion technology, has no bearing on pulverized coal combustion.
To sum up, existing burner there are the shortcomings that be mainly shown as:
1. existing boiler-burner uses single-fuel, combustion function is single, does not adapt to the change of fuel.
2. the double fuel boiler simply formed, investment is high, take up a large area, run it is inconvenient for operation.
3. safety in operation is poor, low nitrogen burning effect is undesirable.
Summary of the invention
In order to overcome the disadvantages of the above prior art, the purpose of the present invention is to provide a kind of coal dusts and natural gas integral type
Dual fuel burner effectively combines coal dust with natural gas combustion technology, can individually combusting coal fines, also can individually fire
Natural gas is burnt, while being also able to carry out double fuel compound combustion.Since the burner is integral type, having same boiler makes
It with the function of two kinds of fuel, and can accomplish to make overall planning in terms of control, installation, affiliated facility, be managed collectively,
The mode for concentrating operation operation greatly facilitates users and changes the transition of gas policy in coal and promote the selectivity in period, together
When also improve the reliability of boiler long-term continuous operation fuel supply.
To achieve the goals above, the technical solution adopted by the present invention is that:
A kind of coal dust and natural gas integral type dual fuel burner, including axial parallel 13 He of First air and coal dust channel
Natural gas channel 14, natural gas channel 14 is in First air and coal dust channel 13, on First air and coal dust channel 13 then before
It is sequentially arranged once wind and coal dust channel component 15, inner second air component 6 and outer second air component 7, First air enters with coal dust
Mouth 5 is located at the front of First air and coal dust channel component 15, is disposed with center combustion air component 4 on the natural gas channel 14,
Gas inlet 1 is located at 4 front of center combustion air component, and the outlet of First air and coal dust channel 13 connects precombustion chamber 10, naturally
The outlet in gas channel 14 is provided with natural gas burner assembly 8, and natural gas burner assembly 8 is located in precombustion chamber 10.
The First air and coal powder entrance 5 are straight up, vertical with First air sleeve, and First air and coal powder entrance 5 access
The First air and coal dust intermixture that coal powder storage and supply system is sent are sent into burner precombustion chamber 10 by First air and coal dust channel 13
In, and the inside and outside Secondary Air provided with inner second air component 6, outer second air component 7 is mixed and burned；Natural gas channel 14 out
Natural gas enters in precombustion chamber 10 after being sprayed by fuel burner nozzle component 8, Swirl nozzle 9, with center combustion air and interior two
The inside and outside Secondary Air that secondary wind component 6, outer second air component 7 provide is mixed and burned.
The center combustion air is the pre-mixed air of natural gas, and premix amount is according to safe and reliable and to take into account low nitrogen burning effect comprehensive
Conjunction is adjusted.
The inner second air that the inner second air component 6 provides is by interior secondary direct current wind and interior swirl flow wind two-way air distribution group
At；The outer second air component 7 and precombustion chamber 10 combine together, form the pre-combustion chamber for having pre-heated SOFA, outer secondary
Wind snout is tangential swirl mode, around 10 inner wall circumference uniform distribution of precombustion chamber in 10 near exit of precombustion chamber.
It is equipped with light-dark separation device 13a in the First air and coal dust channel 13, is entering the coal dust in First air in advance
Center concentrated phase area, surrounding dilute-phase zone are formed when firing room 10.
The light-dark separation device 13a is located at 13 outlet end of First air and coal dust channel, is by being embedded in First air and coal
The steady flame tooth of annular deflection cone and outlet in powder channel 13 forms.
Due to the centripetal ejector action of annular deflection cone, steady flame tooth Intercepting effects, First air and coal dust intermixture can be made
In most of pulverized coal particle gather burner flame centre, form concentrated phase area, and flame envelope and surrounding is made to become coal dust
The lower dilute-phase zone of concentration.
Straight up, straight down, centre wind combustion air entrance exists gas inlet 1 for the First air and coal powder entrance 5
At the position of gas inlet 1, straight up.
The natural gas burner assembly 8 is made of multiple small-sized equal fiery formula nozzles, make Flame of Natural Gas by multiple circumference
Equally distributed small torch composition.
The igniter 3 of the natural gas is arranged in 14 front end of natural gas channel, is horizontally mounted, igniter 3 mainly by
The small spray gun of combustion gas, high-energy ignition bar and pneumatic booster are constituted, and are connected by mounting flange and burner centre pipe, igniting
The small spray gun of combustion gas and spark lever in device is parallel with natural gas channel 14, and pass through central tube reach fuel burner nozzle component 8 with
The position of Swirl nozzle 9, to guarantee to light the big flow that fuel burner nozzle component 8 and Swirl nozzle 9 spray in time
Natural gas preheats precombustion chamber 10 using natural gas flammule, is driven in igniting by pneumatic booster, stretches burning torch
Enter to inside precombustion chamber 10, backed off after random precombustion chamber 10 is completed in igniting, makes burning torch far from high-temperature region.
Flame detector 11 and thermocouple temperature measurement instrument 12 are equipped in the precombustion chamber 10, radially installed is in precombustion chamber respectively
Shell on, for detecting 10 flame signal of precombustion chamber and temperature signal.
Compared with prior art, dual fuel burner of the present invention can independent combusting coal fines, can individually burn natural gas,
Also two kinds of fuel of coal dust and natural gas can be used and carry out compound combustion, so that two kinds of fuel of coal dust and natural gas are arranged using one
It is standby, realize safe and efficient, cleaning burning.Due to being the complete equipment of integral type, it have simple installation, occupy little space, with
Boiler design linking is simple, controls and assist the advantages that auxiliary facility concentration, operation operation convenience, high reliablity, high safety.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is B direction view in Fig. 1.
Fig. 3 is work flow diagram of the present invention.
Specific embodiment
The embodiment that the present invention will be described in detail with reference to the accompanying drawings and examples.
With reference to Fig. 1 and Fig. 2, a kind of coal dust of the present invention and natural gas integral type dual fuel burner, including coaxial primary
Wind and coal dust channel 13 and natural gas channel 14, natural gas channel 14 is in First air and coal dust channel 13, in First air and coal
Once wind and coal dust channel component 15, inner second air component 6 and outer second air group are then sequentially arranged from preceding on powder channel 13
Part 7.
First air and coal powder entrance 5 straight up, positioned at the front of First air and coal dust channel component 15, with a windband
Cylinder is vertical.Center combustion air component 4 is disposed on natural gas channel 14, gas inlet 1 straight down, is located at center combustion air
4 front of component, centre wind combustion air entrance is at the position of gas inlet 1, straight up.First air and coal dust channel 13
Outlet connection precombustion chamber 10, the outlet in natural gas channel 14 are provided with natural gas burner assembly 8 and Swirl nozzle 9, day combustion
Gas burner assembly 8 is located in precombustion chamber 10, is made of multiple small-sized equal fiery formula nozzles, is looped around around Swirl nozzle 9, makes
Flame of Natural Gas is made of the small torch that multiple even circumferentials are distributed, to keep the temperature in Flame of Natural Gas uniform
Change, utmostly avoids the thermal NO generated by localized hyperthermia.
The igniter 3 of natural gas is arranged in 14 front end of natural gas channel, is horizontally mounted, igniter 3 is mainly by combustion gas
Small spray gun, high-energy ignition bar and pneumatic booster etc. are constituted, and are connected by mounting flange and burner centre pipe, igniting dress
The small spray gun of combustion gas and spark lever in setting is parallel with natural gas channel 14, and pass through central tube reach natural gas burner assembly 8 with
The position of Swirl nozzle 9, to guarantee to light the big flow that fuel burner nozzle component 8 and Swirl nozzle 9 spray in time
Natural gas preheats precombustion chamber 10 using natural gas flammule, to reach quickly and safely ignite coal dust and natural gas
The effect for a large amount of natural gases that burner assembly 8 sprays, device are driven in igniting by pneumatic booster, extend into burning torch pre-
It fires inside room 10, backed off after random precombustion chamber 10 is completed in igniting, makes burning torch far from high-temperature region, burning torch is avoided to be chronically at high temp fire
The service life is reduced in flame.
First air and coal powder entrance 5 access First air and coal dust intermixture that coal powder storage and supply system is sent, pass through First air
And coal dust channel 13 is sent into burner precombustion chamber 10, and inside and outside two provided with inner second air component 6, outer second air component 7
Secondary wind is mixed and burned.
The natural gas in natural gas channel 14 enters precombustion chamber 10 after being sprayed by fuel burner nozzle component 8, Swirl nozzle 9 out
In, the inside and outside Secondary Air provided with center combustion air and inner second air component 6, outer second air component 7 is mixed and burned.
Flame detector 11 and thermocouple temperature measurement instrument 12 are equipped in precombustion chamber 10, radially installed is in the outer of precombustion chamber respectively
On shell, for detecting 10 flame signal of precombustion chamber and temperature signal, provided for burner flame failure protection and combustion state adjustment
Foundation.
Wherein, center combustion air is the pre-mixed air of natural gas, and premix amount is according to safe and reliable and take into account low nitrogen burning effect
Synthesis is adjusted.
Inner second air component 6 is among burner body, and inner second air is by interior secondary direct current wind and interior swirl flow wind
Two-way air distribution composition, direct current wind penetration power is strong, jet stream stroke is remote, flame rigidity can be enhanced, Whirl deposite tank swirl strength is big, can
Rapidly with First air and coal dust or combustion gas mixing, burner precombustion chamber internal disturbance can be made abundant, be coal dust and natural gas
Oxygen amount needed for fiery initial stage provides.
Outer second air component 7 and precombustion chamber 10 combine together, form the pre-combustion chamber for having pre-heated SOFA, outer secondary
Wind snout is on the one hand tangential swirl mode can burn around 10 inner wall circumference uniform distribution of precombustion chamber in 10 near exit of precombustion chamber
Device near exit forms volume and inhales recirculating zone, can play the role of apparent steady combustion, on the other hand elongate the air jet of burner
Stroke widens the air classification distance of burner, the generation for the nitrogen oxides that can effectively draw up.
It is equipped with light-dark separation device 13a in First air and coal dust channel 13, the coal dust in First air is made to enter pre-burning
Center concentrated phase area, surrounding dilute-phase zone are formed when room 10, are created conditions for coal dust low nitrogen burning.Light-dark separation device 13a is located at one
13 outlet end of secondary wind and coal dust channel, by the steady flame tooth of the annular deflection cone and outlet that are embedded in First air and coal dust channel 13
Composition.Due to the centripetal ejector action of annular deflection cone, steady flame tooth Intercepting effects, can make in First air and coal dust intermixture
Most of pulverized coal particle gathers burner flame centre, forms concentrated phase area, and flame envelope and surrounding is made to become coal powder density
Lower dilute-phase zone.
With reference to Fig. 3, the course of work of the invention is as follows:
Activation system detects whether have ignition condition, such as has, then allows to light a fire, detect gaseous-pressure, on the spot or
Long-range starting, is sent into combinatorial mapping ignition air gun, starts high-energy igniter, starts flame detector after 30s, opens igniting combustion gas
Solenoid valve.It such as lights a fire unsuccessful, then close igniter solenoid valve and alarms, starting purging resets, and open again after checking failure
It is dynamic.
After lighting a fire successfully, according to fuel conditions, operational mode, including coal dust, natural gas and three kinds of multifuel combustion are selected, in coal dust
Under independent combustion mode, whether detection precombustion chamber, which reaches, first is thrown powder predetermined temperature, if so, coal dust is then put into, after igniting successfully
Open combustion blower, reach after removing rifle condition, close gas electromagnetic valve, keep monitoring main flame, backed off after random combinatorial mapping
Ignition air gun adjusts thermic load, stable operation.
Under the independent combustion mode of natural gas, main gas valve is directly opened, successfully backed off after random combinatorial mapping igniter gas of igniting
Rifle opens combustion fan, keeps monitoring main flame, adjusts thermic load, stable operation later.
Under mixed combustion mode, then needs above-mentioned two parts while running.
As it can be seen that integral type dual fuel burner of the present invention can realize a tractor serves several purposes, it is applicable in three classes pulverized bituminous coal and natural gas
It for fuel, can burn, can also be mixed and burned simultaneously using two kinds of fuel respectively.By the combustion function of two kinds of fuel of solid gas
It concentrates in a burner, fuel solid, that two kinds of forms of gas are different is made to become a reality with same burner combustion, and
Safe and efficient, cleaning, easy operational effect can be reached.In the control of coal dust firing discharge, invention applies coal dusts
The technologies such as air-coal separating, staged air distribution, flue gas recycled and the precombustion chamber with pre-heated SOFA, can draw up about 40% left side
Right NOx generation amount.In combustion of natural gas emission control, invention applies half premix technology, more burners cremate technology,
The technologies such as air classification technology and flue gas recirculation can make NOx emission control in 50mg/m3Below.It is controlled in safe operation
System aspect, invention broadly provides reliable fire extinguishing interlock protection function, i.e. the reliable compound fire defector of application performance
Device and thermocouple, flame spectrum and pre-burning room temperature when by coal dust and combustion of natural gas carry out Real Time Monitoring, comprehensive
Judgement is closed, fire extinguishing signal is exported in time to combustion control system, then issues fuel shutoff (coal dust, combustion automatically by control system
Gas) supply, and start burner and furnace purge program, so that improper fire extinguishing situation is obtained timely and effective processing, avoids because non-
The safety accident that normal fire extinguishing generates, it is ensured that boiler combustion safe operation.
Claims (10)
1. a kind of coal dust and natural gas integral type dual fuel burner, which is characterized in that including axial parallel First air and coal
Powder channel (13) and natural gas channel (14), natural gas channel (14) are interior in First air and coal dust channel (13), First air and coal
Once wind and coal dust channel component (15), inner second air component (6) and outer two are then sequentially arranged from preceding on powder channel (13)
Secondary wind component (7), First air are located at the front of First air and coal dust channel component (15), the natural gas with coal powder entrance (5)
Center combustion air component (4) is disposed on channel (14), gas inlet (1) is located at center combustion air component (4) front, once
The outlet of wind and coal dust channel (13) connects precombustion chamber (10), and the outlet of natural gas channel (14) is provided with natural gas burner assembly
(8), natural gas burner assembly (8) is located in precombustion chamber (10).
2. coal dust and natural gas integral type dual fuel burner according to claim 1, which is characterized in that the First air with
Coal powder entrance (5) is straight up, vertical with First air sleeve, and First air is sent with coal powder entrance (5) access coal powder storage and supply system
First air and coal dust intermixture, be sent into burner precombustion chamber (10) by First air and coal dust channel (13), and with interior two
The inside and outside Secondary Air that secondary wind component (6), outer second air component (7) provide is mixed and burned；The natural gas of natural gas channel (14) out
Enter in precombustion chamber (10) after being sprayed by fuel burner nozzle component (8), Swirl nozzle (9), with center combustion air and interior two
The inside and outside Secondary Air that secondary wind component (6), outer second air component (7) provide is mixed and burned.
3. coal dust and natural gas integral type dual fuel burner according to claim 2, which is characterized in that the center is combustion-supporting
Wind is the pre-mixed air of natural gas, and premix amount is according to safe and reliable and take into account low nitrogen burning effect synthesis and be adjusted.
4. coal dust and natural gas integral type dual fuel burner according to claim 1, which is characterized in that the inner second air
The inner second air that component (6) provides is made of interior secondary direct current wind and interior swirl flow wind two-way air distribution；The outer second air group
Part (7) and precombustion chamber (10) combine together, form the pre-combustion chamber for having pre-heated SOFA, and outer second air spout is tangential rotation
Stream mode, around precombustion chamber (10) inner wall circumference uniform distribution in precombustion chamber (10) near exit.
5. coal dust and natural gas integral type dual fuel burner according to claim 1, which is characterized in that the First air and
Light-dark separation device (13a) is equipped in coal dust channel (13), is made during the coal dust in First air formed when entering precombustion chamber (10)
Heart concentrated phase area, surrounding dilute-phase zone.
6. coal dust and natural gas integral type dual fuel burner according to claim 5, which is characterized in that the air-coal separating
Device (13a) is located at First air and coal dust channel (13) outlet end, is the ring by being embedded in First air and coal dust channel (13)
Shape deflection cone and the steady flame tooth of outlet composition.
7. coal dust and natural gas integral type dual fuel burner according to claim 1, which is characterized in that the First air with
Coal powder entrance (5) straight up, gas inlet (1) straight down, position of the centre wind combustion air entrance in gas inlet (1)
Place is set, straight up.
8. coal dust and natural gas integral type dual fuel burner according to claim 1, which is characterized in that the natural gas is burnt
Nozzle assembly (8) is made of multiple small-sized equal fiery formula nozzles, makes the small torch group of Flame of Natural Gas being distributed by multiple even circumferentials
At.
9. coal dust and natural gas integral type dual fuel burner according to claim 1, which is characterized in that the natural gas
Igniter (3) is arranged in natural gas channel (14) front end, is horizontally mounted, igniter (3) is mainly by the small spray gun of combustion gas, high energy
Spark lever and pneumatic booster are constituted, and are connected by mounting flange and burner centre pipe, and the combustion gas in igniter is small
Spray gun and spark lever are parallel with natural gas channel (14), and pass through central tube and reach fuel burner nozzle component (8) and Swirl spray
The position of mouth (9), so that fuel burner nozzle component (8) is lighted in guarantee in time and the big flow of Swirl nozzle (9) ejection is natural
Gas preheats precombustion chamber (10) using natural gas flammule, is driven in igniting by pneumatic booster, protrudes into burning torch
Internal to precombustion chamber (10), backed off after random precombustion chamber (10) are completed in igniting, make burning torch far from high-temperature region.
10. coal dust and natural gas integral type dual fuel burner according to claim 1, which is characterized in that the precombustion chamber
(10) flame detector (11) and thermocouple temperature measurement instrument (12) are equipped in, radially installed is used on the shell of precombustion chamber respectively
In detection precombustion chamber (10) flame signal and temperature signal.
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| CN201821090624.7U CN208475333U (en) | 2018-07-10 | 2018-07-10 | A kind of coal dust and natural gas integral type dual fuel burner |
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| CN201821090624.7U CN208475333U (en) | 2018-07-10 | 2018-07-10 | A kind of coal dust and natural gas integral type dual fuel burner |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870396A (en) * | 2018-07-10 | 2018-11-23 | 西安交大思源科技股份有限公司 | A kind of coal dust and natural gas integral type dual fuel burner |
| CN110081442A (en) * | 2019-04-26 | 2019-08-02 | 北京科太亚洲生态科技股份有限公司 | A kind of combustion-supporting, three wastes integrated reactor for disposing nitrous gas |
| CN110375303A (en) * | 2019-06-28 | 2019-10-25 | 浙江先创能源科技股份有限公司 | A kind of boiler-burner |
| CN110822423A (en) * | 2019-10-08 | 2020-02-21 | 西安交通大学 | A kind of multi-purpose burner with fins and different diameter gas spin premixing |
| CN112460594A (en) * | 2020-12-10 | 2021-03-09 | 泰山燃控(泰安)有限公司 | Double-fuel burner and boiler with graded ignition and graded air distribution and smoke recirculation |
| CN114484418A (en) * | 2022-01-24 | 2022-05-13 | 煤科院节能技术有限公司 | Dual fuel boiler system |
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2018
- 2018-07-10 CN CN201821090624.7U patent/CN208475333U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870396A (en) * | 2018-07-10 | 2018-11-23 | 西安交大思源科技股份有限公司 | A kind of coal dust and natural gas integral type dual fuel burner |
| CN108870396B (en) * | 2018-07-10 | 2024-08-13 | 西安交大思源科技股份有限公司 | Pulverized coal and natural gas integrated dual-fuel burner |
| CN110081442A (en) * | 2019-04-26 | 2019-08-02 | 北京科太亚洲生态科技股份有限公司 | A kind of combustion-supporting, three wastes integrated reactor for disposing nitrous gas |
| CN110375303A (en) * | 2019-06-28 | 2019-10-25 | 浙江先创能源科技股份有限公司 | A kind of boiler-burner |
| CN110822423A (en) * | 2019-10-08 | 2020-02-21 | 西安交通大学 | A kind of multi-purpose burner with fins and different diameter gas spin premixing |
| CN112460594A (en) * | 2020-12-10 | 2021-03-09 | 泰山燃控(泰安)有限公司 | Double-fuel burner and boiler with graded ignition and graded air distribution and smoke recirculation |
| CN114484418A (en) * | 2022-01-24 | 2022-05-13 | 煤科院节能技术有限公司 | Dual fuel boiler system |
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