CN101349435B - Plasma ignition combustor - Google Patents
Plasma ignition combustor Download PDFInfo
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- CN101349435B CN101349435B CN2007101370082A CN200710137008A CN101349435B CN 101349435 B CN101349435 B CN 101349435B CN 2007101370082 A CN2007101370082 A CN 2007101370082A CN 200710137008 A CN200710137008 A CN 200710137008A CN 101349435 B CN101349435 B CN 101349435B
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- plasma ignition
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- 238000002485 combustion reaction Methods 0.000 claims description 85
- 239000002817 coal dust Substances 0.000 claims description 59
- 239000003245 coal Substances 0.000 abstract description 24
- 239000000843 powder Substances 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 description 10
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 239000003921 oil Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000001706 oxygenating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
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Abstract
The invention relates to a plasma ignition burner, which comprises at least two stage burning cylinders and a plasma generator for igniting coal powder in a first stage burning cylinder of the at least two stage burning cylinders, wherein the burning flame of the upper stage burning cylinder ignites the coal powder in the lower stage burning cylinder or further burns with complemented air in the lower stage burning cylinder, the plasma ignition burner is characterized in that the axial direction of the plasma generator is parallel to the direction of coal powder containing air flow which enters the first stage burning cylinder, and is simultaneously parallel to the axial line of the burning cylinders. The plasma ignition burner also includes a bend for guiding air flow containing the coal powder to the at least two stage burning cylinders. The bend is arranged parallel to the axial line of the burning cylinders at one end of the burning cylinder side. The plasma generator passes through the bend and inserts the first stage burning cylinder along the axial direction of the burning cylinder.
Description
Technical field
The present invention relates to coal powder burning technology field, relate in particular to a kind of plasma ignition burner.
Background technology
Coal-fired thermal power generation is the main generation mode that present various countries adopt.Igniting is a main aspect of boiler combustion process.Along with the increase of boiler capacity, how the start-up course of boiler is accomplished on fast, economical ground. and be a significant problem that needs to be resolved hurrily.
Consume for replacing the oil drop fire mode of great amount of fuel oil, development in recent years plasma-ignition technique.
Traditional plasma ignition system has adopted " precombustion chamber " technology in order to light colm.The formation of precombustion chamber is that combustion barrel is incubated, liner one deck refractory material normally in the combustion chamber, and through the heating at initial stage, the barrel of precombustion chamber has had very high temperature, helps (even independently) with ignited fuel.Precombustion chamber is grown (about 2m), through isoionic effect, the coal dust that contains in the coal dust air stream that gets into precombustion chamber is gasified; Generated a large amount of fuel gas, mainly contained CO etc., the heat that discharges when utilizing these gas fuel burnings again removes to light follow-up coal dust; It also is a kind of multistep ignition mode; But because the pre-burning indoor temperature is too high, coal dust is easy to slagging scorification inside, thereby can't continue to use.
For overcoming the problems referred to above, a kind of new fractional combustion barrel structure has been proposed.As shown in Figure 1; This plasma start-up burner comprises the multistage combustion tube; For example first-stage burning tube 104, second level combustion barrel 106, third level combustion barrel 108, fourth stage combustion barrel 110 etc. (, can also can be less than 4 grades) more than level Four according to watt level and space size.Be divided into two-way by dividing plate 116 and get into first-stage burning tube 104 and second level combustion barrel 106 respectively from the coal dust air stream (Fig. 1 shown in the broad arrow) that contains that contains that coal dust air inflow aperture 102 gets into.Plasma generator is in the axial insertion first-stage burning tube 104 of multistage combustion tube; Lighting the coal dust air that contains that gets into first-stage burning tube 104 flows; Produce one-level pulverized coal flame A, the coal dust air that contains that the latter further lights in the combustion barrel of the second level flows, and forms secondary pulverized coal flame B.Simultaneously, the air stream that gets into from air intake 114 (Fig. 1 shown in the narrow arrow) gets into third level combustion barrels 108 through the 3rd inlet 120, to the inadequate secondary pulverized coal flame supplemental oxygen of burning, forms three grades of pulverized coal flame C.Air can also get into the further oxygenating of fourth stage combustion barrel through the 4th inlet 122.Meanwhile, air stream flowed in the space between previous stage combustion barrel outer wall and burner urceolus 118 before getting into the next stage combustion barrel, thereby had played the effect of cooling combustion tube, prevented slagging scorification.
In above-mentioned technology, plasma generator is along the axial insertion of combustion barrel, and contains coal dust air inflow aperture and air stream all perpendicular to the combustion barrel axis arranged.Just, the direction of plasma flame is perpendicular with the airflow direction that gets into the one-level combustion barrel, needs air-flow to be transferred to parallel through adding deflector (not shown).Equally, the direction that second level coal dust gets into second level combustion barrel also is vertical with the flame direction that the first-stage burning tube sprays, and it is parallel also need it to be become through deflector.But owing to receive the restriction in space, deflector can't turn to air-flow fully.Because two strands of air-flows can not be parallel fully, will cause the air-flow of entering that plasma flame (or previous stage flame) is blown partially, thereby make the rising of barrel temperature, make the coal dust slagging scorification.
In addition, in this technology, the coal dust air flows and air stream all is to get in the direction perpendicular to combustion barrel owing to contain, so on the cross section perpendicular to combustion barrel, the speed of coal dust density and air-flow etc. is not homogeneous, thereby influences burning quality.
Afterwards, be convenient to arrange, used plasma ignition burner like Fig. 2 structure for the scene.For for simplicity; Only illustrate among the figure and contain coal dust air inflow aperture 102, first-stage burning tube 104 and second level combustion barrel 106, and air intake 114, burner urceolus 118 and third level combustion barrel, fourth stage combustion barrel corresponding structure among not shown and Fig. 1.Containing the coal dust air flows into inlet and is divided into two parts by the barrel of first-stage burning tube after 102; Middle body gets into first-stage burning tube 104; Peripheral part second 204 entering second level combustion barrels that enter the mouth of combustion barrel before first-stage burning tube and urceolus (on have the contain breeze airflow inlet 102) space between 202 and then in the second level are as shown in the figure; Plasma generator is along the radially insertion of burner, and contains coal dust air stream along axially being blown into of combustion barrel, and the two remains vertical.Receive the effect that contains coal dust air stream, plasma flame is blown partially, causes the temperature overtemperature that blows inclined to one side side, forms slagging scorification.
Therefore, need a kind of new technology further prevent to burn problem of coal dust slagging scorification on the barrel.
Summary of the invention
Therefore, an object of the present invention is to provide a kind of plasma generator of as far as possible alleviating the slagging scorification problem.Can find out plasma generator direction of insertion (direction of plasma flame just) and contain that between the direction of breeze airflow angle to be arranged be one of reason that causes the slagging scorification problem from above description to prior art.Therefore; To preceding purpose; Main points of the present invention are to arrange again and contain coal dust air inflow aperture and plasma generator; Make and to contain the coal dust air to flow into the direction of direction and plasma flame of first-stage burning tube consistent; Said plasma ignition burner also comprises and is used for importing the bend pipe that contains coal dust air stream to the said tube of two-stage combustion at least, and bend pipe is parallel to the axis of combustion barrel at an end of said combustion barrel one side, and said plasma generator inserts the first-stage burning tube along the said bend pipe wall of axially passing of combustion barrel.
In addition, in order further to improve the slagging scorification problem, need make next stage contain coal dust air stream or air stream is tried one's best consistent with the direction of previous stage pulverized coal flame.
For this reason; The invention provides a kind of plasma ignition burner; The plasma generator that comprises two-stage combustion tube at least and be used for lighting the coal dust in the first-stage burning tube of the said tube of two-stage combustion at least; Wherein the combustion flame of upper level combustion barrel is lighted the coal dust in the next stage combustion barrel or in the next stage combustion barrel, is further burnt with the air that replenishes; It is characterized in that to flow into the direction of first-stage burning tube parallel with containing the coal dust air for the axis direction of said plasma generator, is parallel to the axis of combustion barrel simultaneously.
Preferably, said plasma ignition burner comprises also that along the deflector of the axis arranged of bend pipe deflector is in the end and the plasma generator parallel axes of combustion barrel one side.
Preferably, said deflector extends near the inlet of first-stage burning tube.
Preferably, the end of said plasma generator and deflector all is arranged on the combustion barrel axis perhaps with respect to combustion barrel journal offset preset distance.
Preferably, the shape of cross section of said deflector is put down.
Preferably, the shape of cross section of said deflector is a flexure plane.
Preferably, be provided with abrasionproof sheath protection plasma generator.
Preferably, the windward side of said abrasionproof sheath is a V-arrangement.
Description of drawings
Specifically describe the present invention below in conjunction with accompanying drawing.In the accompanying drawing, identical or corresponding technical characterictic uses identical Reference numeral in each figure.
Fig. 1 is the constructed profile of a kind of plasma ignition burner of prior art;
Fig. 2 is the local constructed profile of the another kind of plasma ignition burner of prior art;
Fig. 3 is the local constructed profile of first embodiment of plasma ignition burner of the present invention;
Fig. 4 is the cutaway view along A-A line among Fig. 3;
Fig. 5 is the local constructed profile of second embodiment of plasma ignition burner of the present invention;
Fig. 6 is a kind of section of structure of axial eddy vortex burner of prior art.
The specific embodiment
Fig. 3 illustrates the local constructed profile of first embodiment of the plasma ignition burner of first aspect present invention.For for simplicity, this figure equally only shows with Fig. 2 and similarly contains coal dust air inflow aperture 102, first-stage burning tube 104 and second level combustion barrel 106.Because preamble has also been described the multistage combustion barrel structure, also no longer repeat at this.It should be explicitly made clear at this point; Of the background technology part; Contain the combustion barrel progression that the coal dust air flows into, combustion barrel technology and the total combustion barrel progression that air directly gets into all not have restriction, can decide according to power requirement and space size, always progression from secondary to three grade, level Four is perhaps more multistage does not wait; According to the occasion of using, air stream as shown in Figure 1 also can be to contain coal dust air stream.
To flow into the direction of first-stage burning tube 104 parallel with containing the coal dust air for the direction of insertion that key of the present invention is to make plasma generator 302, is parallel to the axis of combustion barrel simultaneously.Like this, contain coal dust air stream and be parallel to combustion barrel axis entering combustion barrel, can be owing to the inertia that contains coal dust air stream makes the distribution of coal dust on the cross section of combustion barrel asymmetric.Simultaneously, the direction of the emission direction of the plasma flame of plasma generator when containing the coal dust air and flow into combustion barrel is consistent, is not biased on the burning barrel thereby can plasma flame not blown.More than 2 problems of effectively having alleviated the slagging scorification of burning barrel.
In first embodiment shown in Figure 3, technique scheme is to import the bend pipe 308 contain coal dust air stream and plasma generator 302 is inserted first-stage burning tube 104 along the said bend pipe wall of axially passing of combustion barrel realize through providing.Contain coal dust air stream when the A-A section gets into straight combustion barrel for making, the distribution on the cross section is balanced as far as possible and not amesiality because of centrifugal force, and the radian of bend pipe 308 should be tried one's best gently.Yet as long as radian is arranged, always centrifugal force is inevitable, like this, coal dust will be amesiality in combustion barrel.For avoiding this problem, in a kind of preferred implementation,, and make end and the plasma generator parallel axes of deflector, even extend near first-stage burning tube 104 inlets 310 in combustion barrel one side along the axis arranged deflector 306 of bend pipe 308.Simultaneously, plasma generator 302 and deflector 306 ends all are arranged in (certainly, also can there be certain departing from deflector 306 terminal positions with respect to the combustion barrel axis) on the combustion barrel axis.Like this; Deflector 306 has not only changed the flow direction that contains coal dust air stream, makes it parallel with plasma flame, also makes the part Pulverized Coal Concentration near burner axis and plasma flame by means of centrifugation; Make the coal powder density that gets into central tube improve, help igniting.Compare with structure shown in Figure 1, only use a deflector can change the flow direction that contains coal dust air stream of entering combustion barrels at different levels simultaneously, simple in structure, resistance is less.Because the space is bigger in the elbow, the shape of bent plate can be put down, and also can be various flexure planes (Fig. 4 illustrates an example), further improves the coal powder density that gets into central tube.
As shown in Figure 3, plasma generator 302 has to be exposed to greatly and contains in the coal dust air stream.In order to prevent that plasma generator from being contained the wearing and tearing of coal dust air stream, can use abrasionproof sheath (for example ceramic sheath) protection plasma generator.Simultaneously, in order to reduce resistance, forming V-shape can be done in the windward side of sheath.
Said burner is compared with the burner that radially inserts of Fig. 2, and except having solved the slagging scorification problem, this burner also has stronger ignition ability; Specifically be because: plasma flame is in the center line of burner, because central tube is circular, plasma flame is identical for the ignition ability of all directions; Flame is even, and transmission capacity is strong, if plasma flame is arranged in a side of burner central tube; Then can cause plasma flame one side flame temperature high; The opposite side flame temperature is low, if burning inferior coal, even might be missing of ignition.
In first embodiment of describing in front, the Pulverized Coal Concentration of burner central tube relies on the inspissation of deflector 306 in the bend pipe 308.But owing to receive the restriction in space, and the impossible unlimited raising of the concentration of central tube, this has influenced the effect of igniting.For this reason, as second aspect of the present invention, second embodiment of the present invention as shown in Figure 5 is provided.
For for simplicity, Fig. 5 only show with Fig. 2, Fig. 3 in corresponding components first-stage burning tube 104 and burner inner core 202.The same with the described embodiment of preamble, after first-stage burning tube 104, in burner inner core 202, can arrange more multistage combustion barrel.Outside burner inner core 202, the corresponding component corresponding to the multistage combustion tube after the burner urceolus 118 and burner inner core among Fig. 1, within the burner urceolus 118 can also be arranged.
In this embodiment, the pipeline bifurcated that supply contains coal dust air stream is two pipelines, promptly be responsible for 508 with bifurcated pipe 502.Being responsible for 508 can or adopt the bend pipe 308 in first embodiment to be connected with burner inner core 202 according to traditional approach.Draw central tube 510 from first-stage burning tube 104 simultaneously and be connected to bifurcated pipe 502.Equally; Second bend pipe 512 of the bend pipe 308 that being connected of bifurcated pipe 502 and central tube 510 to adopt traditional approach also can adopt to be similar in first embodiment; And wherein also can use the deflector 306 (not shown among Fig. 5) in first embodiment, the arrangement of plasma generator 302 also can be similar to first kind of embodiment.
Like this, directly introduce central tube, thereby can make the coal powder density that gets into central tube entering first-stage burning tube higher, thereby be beneficial to igniting through will contain coal dust air stream with bifurcated pipe.As preferred embodiment, need to regulate the amount that contains coal dust air stream of entering, and/or need to improve the coal powder density in the coal dust air stream that contains that gets into plasma pulverized coal ignition burner as far as possible.For this reason, can adjuster be set the person in charge and bifurcated pipe crotch, flexible gets into the coal dust amount of bifurcated pipe.
As the modification of such scheme, have three grades or more than three grades, combustion barrels then at different levels can distribute arbitrarily between central tube and burner inner core if introduce the combustion barrel contain coal dust air stream in the burner.Such as; With three grades of combustion barrels is example; Can the first-stage burning tube of plasma pulverized coal ignition burner, the coal dust of second level combustion barrel be introduced (in the case through central tube and bifurcated pipe simultaneously; Central tube and internal structure thereof and shown in Figure 2 be similarly, only the burner inner core among Fig. 2 becomes the central tube among Fig. 5), the coal dust of third level combustion barrel gets into from main line.Also can be conversely, promptly the coal dust of the first-stage burning tube of plasma pulverized coal ignition burner is introduced through central tube and bifurcated pipe, and the coal dust of the second level and third level combustion barrel gets into from main line.
In a kind of preferred implementation, a switch 504 can be set in bifurcated pipe.In burner igniting and this switch opens of low-load combustion-stabilizing stage.Igniting is accomplished, stable this switch 504 of then can closing afterwards of burner combustion.This switch 504 also can be designed as with adjuster 506 and merges, thereby makes adjuster simultaneously as adjuster and bifurcated pipe switch.
Can know that the main points of this embodiment are to utilize bifurcated pipe to improve the coal powder density of first-stage burning tube in the past, be not limited to that it is axial arranged along combustion barrel also to be not limited to plasma generator with the plasma generator igniting in the face of the explanation of second embodiment.Therefore, the each side details of second embodiment can combine or not combine with the each side details of the scheme of first embodiment.Particularly, igniter also can be oil gun except plasma generator, and its arrangement can be the insertion of any direction also except axial insertion, comprises radially inserting and oblique cutting is gone into.
In such scheme, owing to be furnished with bifurcated pipe, and adjuster is housed, can regulate independently and contain coal dust air velocity and coal powder density in the burner central tube, thereby reach optimum igniting operating mode.
In addition,, utilize above-mentioned second embodiment a kind of convenience can be provided, transform means cheaply, make it can use the present invention for being installed in some on-the-spot old-fashioned burner.
For example; The spiral coal powder burner that a lot of coal-fired stations are adopted has central tube; The mixture of coal dust and wind is to send into burner hearth from the skin of central tube; For example promptly adopt this structure by Mitsui Babcock limited energy company in the LNASB axial eddy vortex burner (see figure 6) of the exploitation eighties in 20th century, wherein in central tube 602, insert oil gun, the oil gun flame ignition is sent into the coal dust of burner hearth from the central tube skin.Need be if directly carry out the transformation of Plasma Firing Technology for the burner of this type with central tube 602 structural demolitions, inner coal powder density distributions of burner like this, wind speed etc. understand that great changes will take place, will influence original performance of burner.And adopt second embodiment of the present invention to get final product head it off; When carrying out the plasma technology transformation; Only need central tube 602 be transformed into first-stage burning tube 104 as shown in Figure 5, central tube 510, igniter (for example plasma generator 302); And add that the bifurcated pipe 502 that is attached thereto gets final product; Need not carry out any transformation, thereby accomplish that with former burner performance is consistent to greatest extent the coal dust air stream mechanism (being that a wind/coal dust shown in Fig. 6 is until the structure of tertiary-air pipe) that contains of original burner.
Above-mentioned reforming mode has formed a kind of three grades of burners (first-stage burning tube, central tube and urceolus).In fact, if situation allows, can not increase the first-stage burning tube, thereby only constitute two stage burner by central tube and urceolus.In addition, in central tube, also can increase more combustion barrel level, perhaps also can in urceolus, increase more combustion barrel level.
In addition, no matter be in original burner, still in the improved burner, igniter can be any igniter, comprises oil gun and plasma igniting device etc.
Combine accompanying drawing to be described to preferred implementation of the present invention above.Obviously, the present invention is not limited to described detail, and various variations and alternative can be arranged, and these are all within protection scope of the present invention.
Claims (12)
1. plasma ignition burner; The plasma generator that comprises two-stage combustion tube at least and be used for lighting the coal dust in the first-stage burning tube of the said tube of two-stage combustion at least; Wherein the combustion flame of upper level combustion barrel is lighted the coal dust in the next stage combustion barrel or in the next stage combustion barrel, is further burnt with the air that replenishes; It is characterized in that; To flow into the direction of first-stage burning tube parallel with containing the coal dust air for the axis direction of said plasma generator, is parallel to the axis of combustion barrel simultaneously, and said plasma ignition burner also comprises and is used for importing the bend pipe that contains coal dust air stream to the said tube of two-stage combustion at least; Bend pipe is parallel to the axis of combustion barrel at an end of said combustion barrel one side, and said plasma generator inserts the first-stage burning tube along the said bend pipe wall of axially passing of combustion barrel.
2. plasma ignition burner as claimed in claim 1 is characterized in that, said plasma ignition burner comprises also that along the deflector of the axis arranged of bend pipe deflector is in the end and the plasma generator parallel axes of combustion barrel one side.
3. plasma ignition burner as claimed in claim 2 is characterized in that said deflector extends near the inlet of first-stage burning tube.
4. plasma ignition burner as claimed in claim 3 is characterized in that, the end of said plasma generator and deflector all is arranged on the combustion barrel axis perhaps with respect to combustion barrel journal offset preset distance.
5. like the described plasma ignition burner of one of claim 2 to 4, it is characterized in that the shape of cross section of said deflector is put down.
6. like the described plasma ignition burner of one of claim 2 to 4, it is characterized in that the shape of cross section of said deflector is a flexure plane.
7. like the described plasma ignition burner of one of claim 1 to 4, it is characterized in that, be provided with abrasionproof sheath protection plasma generator.
8. plasma ignition burner as claimed in claim 7 is characterized in that, the windward side of said abrasionproof sheath is a V-arrangement.
9. plasma ignition burner as claimed in claim 5 is characterized in that, is provided with abrasionproof sheath protection plasma generator.
10. plasma ignition burner as claimed in claim 9, the windward side that it is characterized in that said abrasionproof sheath is a V-arrangement.
11. plasma ignition burner as claimed in claim 6 is characterized in that, is provided with abrasionproof sheath protection plasma generator.
12. plasma ignition burner as claimed in claim 11 is characterized in that, the windward side of said abrasionproof sheath is a V-arrangement.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101370082A CN101349435B (en) | 2007-07-19 | 2007-07-19 | Plasma ignition combustor |
| EP08714974A EP2172706A4 (en) | 2007-07-19 | 2008-03-17 | A burner ignited by plasma |
| AU2008278159A AU2008278159B2 (en) | 2007-07-19 | 2008-03-17 | A burner ignited by plasma |
| ZA200903400A ZA200903400B (en) | 2007-07-19 | 2008-03-17 | A plasma ignition burner |
| JP2010516350A JP2010533833A (en) | 2007-07-19 | 2008-03-17 | Plasma ignition burner |
| PCT/CN2008/000521 WO2009009948A1 (en) | 2007-07-19 | 2008-03-17 | A burner ignited by plasma |
| US12/175,963 US20090038518A1 (en) | 2007-07-19 | 2008-07-18 | plasma ignition burner |
| RU2008129851/06A RU2439434C2 (en) | 2007-07-19 | 2008-07-18 | Burner with plasma ignition |
| KR1020080070411A KR101206354B1 (en) | 2007-07-19 | 2008-07-21 | A plasma ignition burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101370082A CN101349435B (en) | 2007-07-19 | 2007-07-19 | Plasma ignition combustor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101349435A CN101349435A (en) | 2009-01-21 |
| CN101349435B true CN101349435B (en) | 2012-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101370082A Active CN101349435B (en) | 2007-07-19 | 2007-07-19 | Plasma ignition combustor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101349435B (en) |
| ZA (1) | ZA200903400B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287349A (en) * | 2011-06-03 | 2011-12-21 | 哈尔滨工业大学 | Method for raising stable combustion limit of gas hydrocarbon fuels by femtosecond laser induced plasmas and device realizing same |
| EP3130851B1 (en) * | 2015-08-13 | 2021-03-24 | General Electric Technology GmbH | System and method for providing combustion in a boiler |
| CN106304601A (en) * | 2016-09-29 | 2017-01-04 | 成都真火科技有限公司 | A kind of flame passes flow-generator |
| CN110285410A (en) * | 2019-06-25 | 2019-09-27 | 徐州科融环境资源股份有限公司 | A kind of rush-harvesting and rush-planting Plasma powdered-coal burner |
| CN113048473B (en) * | 2021-04-13 | 2022-05-17 | 山西文龙中美环能科技股份有限公司 | Peak-shaving plasma automatic ignition pulverized coal combustion stabilizer and combustion stabilizing method for coal-fired boiler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2429752Y (en) * | 2000-03-27 | 2001-05-09 | 烟台开发区龙源电力燃烧控制工程有限公司 | Two stage flame ignitor for coal powder directly |
| CN2521510Y (en) * | 2002-02-06 | 2002-11-20 | 烟台龙源电力技术有限公司 | Plasma ignitor for directly-igniting pulverized-coal-fuel boiler |
| CN2526693Y (en) * | 2002-03-01 | 2002-12-18 | 洛阳泛华电力工程技术有限公司 | Plasma coal igniter |
| CN1912462A (en) * | 2006-08-23 | 2007-02-14 | 傅宁娟 | Vortex burner of micro-oil cold furnace igniting and superlow load stable burning and with low NOx drainage |
-
2007
- 2007-07-19 CN CN2007101370082A patent/CN101349435B/en active Active
-
2008
- 2008-03-17 ZA ZA200903400A patent/ZA200903400B/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2429752Y (en) * | 2000-03-27 | 2001-05-09 | 烟台开发区龙源电力燃烧控制工程有限公司 | Two stage flame ignitor for coal powder directly |
| CN2521510Y (en) * | 2002-02-06 | 2002-11-20 | 烟台龙源电力技术有限公司 | Plasma ignitor for directly-igniting pulverized-coal-fuel boiler |
| CN2526693Y (en) * | 2002-03-01 | 2002-12-18 | 洛阳泛华电力工程技术有限公司 | Plasma coal igniter |
| CN1912462A (en) * | 2006-08-23 | 2007-02-14 | 傅宁娟 | Vortex burner of micro-oil cold furnace igniting and superlow load stable burning and with low NOx drainage |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA200903400B (en) | 2010-08-25 |
| CN101349435A (en) | 2009-01-21 |
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