CN205535827U - Steam injection boiler crude oil gas whirl low NOx burner of burning crude oil, natural gas - Google Patents
Steam injection boiler crude oil gas whirl low NOx burner of burning crude oil, natural gas Download PDFInfo
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- CN205535827U CN205535827U CN201620051589.2U CN201620051589U CN205535827U CN 205535827 U CN205535827 U CN 205535827U CN 201620051589 U CN201620051589 U CN 201620051589U CN 205535827 U CN205535827 U CN 205535827U
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Abstract
The utility model discloses a steam injection boiler crude oil gas whirl low NOx burner of burning crude oil, natural gas, this crude oil whirl low NOx burner according to the air current to, be in proper order: air inlet, air damper, central plenum, secondary plenum, perimeter plenum, overgrate air spout, perimeter wind spout. Center wind flow through in proper order central plenum, central tuber pipe, stabilizer. Overgrate air flow through in proper order secondary plenum, overgrate air spinning disk, secondary plenum, overgrate air spout. Perimeter wind flow through in proper order perimeter plenum, perimeter plenum, perimeter wind spout. The utility model provides a wind is used through reasonable hierarchical tissue burning to the combustor, realizes the fractional combustion of crude oil gas, can effectively fall low nitrogen oxide's formation, reduces nitrogen emission, and the system is simple moreover, the easy maintenance, and the maintenance cost is low, long service life.
Description
Technical field
This utility model relates to a kind of promoting crude oil and the burn crude of natural gas rotary combustion, the steam injection pot of natural gas
Stove crude oil combustion gas eddy flow low NO, refers specifically to realize injection boiler and uses crude oil or natural gas fired and low nitrogen
The burner of burning.
Background technology
In July, 2013, Shandong Province issues " Shandong Province's regionality discharge standard of air pollutants ", it is stipulated that arrive
On January 1st, 2017, oil burning boiler discharged nitrous oxides standard is at 250mg/Nm3Within, to the year two thousand twenty January
1, oil burning boiler discharged nitrous oxides standard was at 200mg/Nm3Within.But, owing to existing gas injection stove burns
Device all uses high excess air coefficient to burn, and its simple in construction, and tissue wind is single, causes discharged nitrous oxides to surpass
Mark；Therefore, improve steam-injected boiler efficiency of combustion and reduce nitrogen oxides discharge become steam-injected boiler industry when business
Anxious.In recent years, power industry has carried out a large amount of technological improvement to station boiler conventional ignition mode, occur in that as
Plasma, Gasifying Small Oil Gun, double device such as by force.But, above-mentioned each device due to reasons such as its inherent mechanisms,
All have some limitations when being applied in injection boiler.Such as plasma burner: once invest height, fuel is fitted
Poor by property, power consumption is high, and service life is short, and system complex and maintenance cost are high.Such as North America burner: import
Burner, once puts into height, it is impossible to reducing discharged nitrous oxides, maintaining is costly.Such as double strong burners:
System complex, fuel consumption is big, investment height.
In sum, this type of technology is applicable to the power industry boiler of Large Copacity high parameter or is applicable to coal-fired pot
, in injection boiler uses, there is great limitation in stove.
Utility model content
Utility model purpose: in order to overcome the deficiencies in the prior art, this utility model provides a kind of burner,
This burner is capable of " swirl flow combustion, low-nitrogen discharged ", can not only realize crude oil or natural gas fired and burning,
Efficient low nitrogen burning can also be realized by swirling eddy.
Technical scheme: for solving above-mentioned technical problem, a kind of injection boiler burn crude of the present utility model, natural gas
Crude oil combustion gas eddy flow low NO, when using crude oil, in burner air flow through air intake include successively total air compartment,
It is located at the damper in total air compartment, center air compartment, secondary air chamber, circumference air compartment, overfire air port, surrounding air spout；
Centre wind flows through center air compartment, the central air hose being connected with center air compartment successively, is located at the steady combustion within central air hose outlet
Device；Secondary wind flows through secondary air chamber successively, be located in secondary air chamber secondary wind spinning disk, two be connected with secondary air chamber
Secondary airduct, it is located at the overfire air port of the end of secondary air channel；Surrounding air flows through circumference air compartment, circumference airduct, week successively
Boundary's wind snout；Described central air hose is located in secondary air channel, and secondary air channel is located in circumference airduct, central air hose, secondary
Airduct, circumference airduct three's central shaft are all on central air hose axial line, and burner is provided with a gas burner, described
Gas burner includes that gas distributor is (with the gas gun of the coupled surrounding being arranged in outside central air hose, fuel gas buring
Device ecto-entad passes center air compartment and secondary air chamber；Described igniter is arranged in the air compartment of center and immediately below oil gun
And it is parallel with oil gun.
Further, described oil gun axial line is on central air hose axial line, and oil gun exports at secondary air channel center, oil gun
By central air hose, igniter is delivered to stabilizer position, ensure that igniter front end is before stabilizer simultaneously.
Further, it is provided with flame detector in described central air hose.
Further, during natural gas fuel, this crude oil combustion gas eddy flow low NO is according to air flow, with combustion
With identical during crude oil.Gas burner is made up of some gas guns, and gas gun is evenly arranged in outside central air hose four
Week.Natural gas start-up process is: natural gas first passes through gas distributor and is evenly distributed to gas gun, after being ignited again
Flow through secondary air channel, overfire air port, surrounding air spout successively.Secondary air chamber is designed with secondary air regulation device, can
With regulation secondary wind air quantity and eddy flow angle.Total blast volume and the wind of burner can be adjusted into by damper
Speed.
Igniter is Small scale gas combustion burners.It is internal, for being installed on center that stabilizer is positioned at central air hose outlet
The swirl vane assembly of airduct inner walls；After overfire air port is positioned at stabilizer, for being installed on secondary air channel end
The reducing conical pipe of end；Surrounding air spout is positioned at outside circumference airduct end, overfire air port, for spreading spout,
Both adjustable flame profiles and intensity.
Oil gun axial line is on central air hose axial line, and its outlet is at secondary air channel center.Oil gun passes through centre wind
Igniter is delivered to stabilizer position by pipe, ensures that igniter axial line intersects at central air hose axial line simultaneously
Ignition location.Combustion case is monitored by flame detector.
Principle of the present utility model and feature are: during boiler ignition start, utilize crude oil being fully atomized feelings
Be ignited under condition produce thermal-flame, or natural gas high velocity jet burning, make through this flame crude oil granule or
Natural gas obtains rapid cleavage burning, and combustion flame is through stabilizer, and owing to air capacity is improved, burning is more
Strongly；Subsequently, combustion flame is affected by secondary wind swirling eddy at this through overfire air port and is passively rotated,
Absorbing the oxygen that secondary wind is supplemented, burning is more strong, and ignition temperature is higher simultaneously；Finally, combustion flame passes through
Surrounding air spout, at this, by surrounding air airflow influence, flame is strengthened, and absorbs the oxygen that surrounding air supplements simultaneously
Gas, burning is more strong and thorough.By a series of overheavy firing, it is ensured that crude oil is at low excess air coefficient
In the case of normal combustion, it is achieved crude oil natural gas fired is surely fired and low nitrogen burning.
Beneficial effect: this utility model in terms of existing technologies, has the advantage that the combustion that this utility model provides
Burner is through reasonable hierarchically organized burning wind, it is achieved the fractional combustion of combustion gas, can effectively reduce the generation of nitrogen oxides,
Reduce nitrogen discharged；And system is simple, compact conformation, easy care, maintenance cost are low, length in service life, once put into
Low, payback period short；And it is capable of the burning of combustion gas crude oil.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1-oil gun；2-center air compartment；3-gas distributor；4-secondary air regulation device；5-secondary air chamber；6-bis-
Secondary wind spinning disk；7-circumference air compartment；8-overfire air port；9-surrounding air spout；10-gas burner；11-stabilizer；
12-circumference air compartment；13-damper；14-central air hose；15-secondary air chamber；The total air compartment of 16-；17-igniter；
18-flame detector；19-gas gun.
Detailed description of the invention
Below in conjunction with description and the Fig. 1 injection boiler crude oil low nitrogen of combustion gas eddy flow to crude oil and natural gas rotary combustion
Burner is described further.
The injection boiler crude oil combustion gas eddy flow low NO of crude oil and natural gas rotary combustion, it is characterised in that: combustion
When using crude oil, this crude oil combustion gas eddy flow low NO, according to air flow, is followed successively by: air intake, total air compartment
16, damper 13, center air compartment 2, secondary air chamber 5, circumference air compartment 7, overfire air port 8, surrounding air spray
Mouth 9.Wherein, centre wind flows through center air compartment 2, central air hose 14, stabilizer 11 successively.Secondary wind flows successively
Through secondary air chamber 5, secondary wind spinning disk 6, secondary air channel 15, overfire air port 8.Surrounding air flows through circumference successively
Air compartment 7, circumference airduct 12, surrounding air spout 9.During oil gun 1, flame detector 18 and stabilizer 11 are placed in
In heart-wind syndrome pipe 14；Central air hose 14 is placed in secondary air channel 15；Secondary air channel 15 is placed in circumference airduct 12.
Three's central shaft is all on central air hose 14 axial line；Central air hose 14 is outer is secondary air channel 15, surrounding air successively
Pipe 12.Parallel on oil gun 1 igniter 17 and flame detector 18 are installed.
During natural gas fuel, this crude oil combustion gas eddy flow low NO is according to air flow, identical with when using crude oil.
Gas burner 10 is made up of some gas guns 19, and gas gun 19 is evenly arranged in the surrounding outside central air hose 14.
Natural gas start-up process is: natural gas first passes through gas distributor (3) and is evenly distributed to gas gun 19, is ignited
After flow through secondary air channel 15, overfire air port 8, surrounding air spout 9 the most successively.Secondary air chamber 5 is designed with secondary
Ventilating regulator 4, can regulate secondary wind air quantity and eddy flow angle.Combustion can be adjusted into by damper 13
The total blast volume of burner and wind speed.
Igniter 17 is Small scale gas combustion burners.Stabilizer 11 is positioned at central air hose 14 and exports inside, for installing
Swirl vane assembly in central air hose 14 inner walls；After overfire air port 8 is positioned at stabilizer 11, for peace
It is loaded on the reducing conical pipe of secondary air channel 15 end；Surrounding air spout 9 is positioned at circumference airduct 12 end, secondary wind
Outside spout 8, for diffusion spout, both adjustable flame profiles and intensity.
Oil gun 1 axial line is on central air hose 14 axial line, and its outlet is at secondary air channel 15 center.Oil gun (1)
Deliver to stabilizer 11 position, ensure igniter 17 axial line by igniter 17 by central air hose 14 simultaneously
Ignition location is intersected at central air hose 14 axial line.Combustion case is monitored by flame detector 18.
When using crude oil, in the oil line pipe of oil gun 1 add crude oil, crude oil through oil nozzle by compressed air
Or steam atomization, form mist of oil in stabilizer 11 exit, then by 17 fuel sprays of igniter.By fire
After clear flame seen by flame detector 18, being passed through quantitative centre wind from central air hose 14, centre wind and mist of oil exist
Stabilizer 11 exit is sufficiently mixed, and makes crude oil fully burn, and forms fire core；At this moment oily flame momentum is big, just
Property is strong, spread speed is fast, central temperature is high.The secondary wind rotated when overfire air port 8 is rotated,
Filling into oxygen, burning is strengthened simultaneously.Eventually pass surrounding air spout 9, be passed through a certain amount of surrounding air at this, combustion
Burn more anxious strong thorough.
During natural gas fuel, natural gas is evenly distributed to gas burner 10 through gas distributor 3, two
In secondary airduct 15, ignited device 17 is lighted, after seeing clear flame by flame detector 18, from central air hose
14 are passed through quantitative centre wind, centre wind stabilizer 11 exit formed eddy flow, after through Flame of Natural Gas district
Participating in burning, now flame momentum is big, rigidity is strong, spread speed is fast, central temperature is high.Through overfire air port
The secondary wind rotated when 8 is rotated, and fills into oxygen simultaneously, and burning is strengthened.Eventually pass surrounding air spout 9,
It is passed through a certain amount of surrounding air at this, burns more anxious strong thorough.
Subsequently, secondary air channel aperture, and then regulation two are regulated according to case of fire by secondary air regulation device 4
Secondary wind air quantity and eddy flow angle, adjust total intake and wind speed by damper 13, final adjust flame profile and
Intensity, is allowed under conditions of meeting operating load fully burn, and reduces formation of nitrogen oxides.
The above is only preferred implementation of the present utility model, it should be pointed out that: common for the art
For technical staff, on the premise of without departing from this utility model principle, it is also possible to make some improvements and modifications,
These improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (6)
- null1. a burn crude、The injection boiler crude oil combustion gas eddy flow low NO of natural gas，It is characterized in that: described crude oil combustion gas eddy flow low NO is according to air flow，It is followed successively by: air intake、Total air compartment (16)、The damper (13) being located in total air compartment (16)、Center air compartment (2)、Secondary air chamber (5)、Circumference air compartment (7)、Overfire air port (8)、Surrounding air spout (9)，Centre wind flows through center air compartment (2) successively、The central air hose (14) being connected with center air compartment (2)、The stabilizer (11) being located in central air hose (14)，Secondary wind flows through secondary air chamber (5) successively、The secondary wind spinning disk (6) being located in secondary air chamber (5)、The secondary air channel (15) being connected with secondary air chamber (5)、It is located at the overfire air port (8) at secondary air channel (15) port end，Surrounding air flows through circumference air compartment (7) successively、The circumference airduct (12) being connected with circumference air compartment (7)、It is located at the surrounding air spout (9) at circumference airduct (12) port end；Oil gun (1) it is provided with in described central air hose (14)；Described central air hose (14) is arranged in secondary air channel (15)；Described secondary air channel (15) is arranged in circumference airduct (12), and central air hose (14), secondary air channel (15), circumference airduct (12) three's central shaft are all on central air hose (14) axial line；Burner is provided with a gas burner (10), described gas burner (10) includes gas distributor (19) and the coupled gas gun (19) being evenly arranged in central air hose (14) outer surrounding, and gas burner (10) ecto-entad passes center air compartment (2) and secondary air chamber (5)；And it is arranged with igniter (17) in parallel with oil gun (1) immediately below described oil gun (1).
- Burn crude the most according to claim 1, the injection boiler crude oil combustion gas eddy flow low NO of natural gas, it is characterized in that: described oil gun (1) axial line is on central air hose (14) axial line, oil gun (1) exports at secondary air channel (15) center, igniter (17) is delivered to stabilizer (11) position by central air hose (14) by oil gun (1), ensures that igniter (17) front end is front at stabilizer (11) simultaneously.
- Burn crude the most according to claim 1, the injection boiler crude oil combustion gas eddy flow low NO of natural gas, it is characterised in that: described secondary wind spinning disk (6) is connected with a secondary air regulation device (4).
- Burn crude the most according to claim 1, the injection boiler crude oil combustion gas eddy flow low NO of natural gas, it is characterised in that: described stabilizer (11) is the swirl vane assembly of centrally disposed airduct (14) inner walls.
- Burn crude the most according to claim 1, the injection boiler crude oil combustion gas eddy flow low NO of natural gas, it is characterised in that: described secondary air chamber (15) end is reducing conical pipe.
- Burn crude the most according to claim 1, the injection boiler crude oil combustion gas eddy flow low NO of natural gas, it is characterised in that: it is provided with flame detector (18) in described central air hose (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620051589.2U CN205535827U (en) | 2016-01-19 | 2016-01-19 | Steam injection boiler crude oil gas whirl low NOx burner of burning crude oil, natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620051589.2U CN205535827U (en) | 2016-01-19 | 2016-01-19 | Steam injection boiler crude oil gas whirl low NOx burner of burning crude oil, natural gas |
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| CN205535827U true CN205535827U (en) | 2016-08-31 |
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| CN201620051589.2U Active CN205535827U (en) | 2016-01-19 | 2016-01-19 | Steam injection boiler crude oil gas whirl low NOx burner of burning crude oil, natural gas |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526589A (en) * | 2016-01-19 | 2016-04-27 | 南京创能电力科技开发有限公司 | Crude oil and fuel gas rotational flow low-nitrogen burner of steam-injection boiler for burning crude oil and fuel gas |
| CN106642114A (en) * | 2016-11-15 | 2017-05-10 | 西安西热锅炉环保工程有限公司 | Ultra-low-nitrogen gas combustor with gun head self-combustion-stabilization devices |
-
2016
- 2016-01-19 CN CN201620051589.2U patent/CN205535827U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526589A (en) * | 2016-01-19 | 2016-04-27 | 南京创能电力科技开发有限公司 | Crude oil and fuel gas rotational flow low-nitrogen burner of steam-injection boiler for burning crude oil and fuel gas |
| CN106642114A (en) * | 2016-11-15 | 2017-05-10 | 西安西热锅炉环保工程有限公司 | Ultra-low-nitrogen gas combustor with gun head self-combustion-stabilization devices |
| CN106642114B (en) * | 2016-11-15 | 2018-10-23 | 西安西热锅炉环保工程有限公司 | It is a kind of with pipette tips from the ultra-low nitrogen volumetric combustion device of smooth combustion apparatus |
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| GR01 | Patent grant |