CN105674257A - Two-stage-adjustable steam plasma swirl burner - Google Patents

Two-stage-adjustable steam plasma swirl burner Download PDF

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Publication number
CN105674257A
CN105674257A CN201610125265.3A CN201610125265A CN105674257A CN 105674257 A CN105674257 A CN 105674257A CN 201610125265 A CN201610125265 A CN 201610125265A CN 105674257 A CN105674257 A CN 105674257A
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water vapour
air
plasma
admission line
level
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CN201610125265.3A
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CN105674257B (en
Inventor
向军
周敬
唐浩
胡松
苏胜
汪一
熊哲
逯朝锋
江龙
徐俊
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Huazhong University of Science and Technology
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Huazhong University of Science and Technology
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D1/00Burners for combustion of pulverulent fuel
    • F23D1/02Vortex burners, e.g. for cyclone-type combustion apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L7/00Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
    • F23L7/002Supplying water
    • F23L7/005Evaporated water; Steam

Abstract

The invention discloses a two-stage-adjustable steam plasma swirl burner. The two-stage-adjustable steam plasma swirl burner comprises a first-stage plasma ignition device, a second-stage plasma adjuster and a steam supply system. The first-stage plasma ignition device comprises a primary air pipeline, an internal combustor, a rich-lean separator, a swirl generator, a first-stage steam inlet pipeline, a central air pipeline and a first-stage plasma generator. The second-stage plasma adjusting device comprises a second-stage steam inlet pipeline, a second-stage plasma generator, an internal secondary air inlet pipeline and an external secondary air inlet pipeline. The two-stage-adjustable steam plasma swirl burner solves the problems that combustion is hardly stable and the NOx pollutant emission is high, is especially suitable for meager coal, smoke-free coal and the coal which is difficult to ignite and generates a large amount of NOx pollutants and has the effects of being low in nitrogen and stable in combustion.

Description

A kind of adjustable water-vapor plasma turbulent burner of two-stage
Technical field
The invention belongs to coal-burning boiler field, more particularly, to a kind of turbulent burner.
Background technology
At present, station boiler starts and in low-load combustion-stabilizing process, it is necessary to consume substantial amounts of fuel oil, and plasmaassisted firing technique can solve igniting and the stable combustion problem of high-volatile coal, saves the cost that fuel oil brings. Existing document and industry is actual shows, for low-volatite coal, plasma-ignition technique is difficult to light, and causes that plasma-ignition technique is difficult to widely use in the unburnable coals such as anthracite, meanwhile, uses air as reaction gas, the N in air2Nitrogen oxides (NO very easily it is oxidized to after plasmarizedx), add NOxGrowing amount, be unfavorable for boiler low nitrogen reduce discharging. What adopt in the arc-plasma in patent CN201010577320 is pure oxygen, although pure oxygen can solve plasma reaction gas without N2Problem, but pure oxygen price is compared expensive, and is fundamentally not solved by other approach and generates NOxA difficult problem. What this patent adopted is the method supplementing water vapour, can solve NO by the character that plasma state water vapour is special with the position passed into and ratioxThe problem that growing amount is high. Meanwhile, the research of the present invention shows, plasma state water vapour has facilitation for catching fire of the low-volatite coal such as anthracite.
In turbulent burner, owing to its own structure, First air and secondary wind mixing ratio are stronger, hot NOxWith fuel type NOxCan not being reacted in time in the oxygen deprivation region of flame, its oxynitride discharge is higher. For improving the low nitrogen performance of turbulent burner, generally adopt the methods such as staged air distribution, dense-dilute burner combustion technology, the curl of adjustment secondary wind and air quantity. These methods have been achieved for better low nitrogen effect at present, such as the low NO of deep-graded in the low temperature plasma rotational flow coal dust stove stove of patent CN201110295483xCombustion system. But in order to reduce the NO of boiler furtherxDischarge, this patent takes to supplement at first order plasma generator and passes into this classification of highly active water-vapor plasma in the oxygen deprivation region of water vapour and the annular between First air and secondary wind and reduce NOxMethod so that in boiler generate NOxContent is substantially reduced.
Steady combustion and low nitrogen the two problem, we can not solve in isolation. In above-mentioned most of patents, although combustion stability is improved, but NOxGrowing amount but becomes more. In this patent, adopt the low nitrogen turbulent burner of this intense steady combusting, it is possible to take into account the combustibility of coal dust and low nitrogen effect so that boiler reaches optimum operating condition, be so greatly saved the energy, environmental pollution can also be reduced simultaneously.
Summary of the invention
Disadvantages described above or Improvement requirement for prior art, the invention provides a kind of adjustable water-vapor plasma turbulent burner of two-stage, it can effectively realize steady combustion and low nitrogen mentality of designing, makes full use of water vapour resource simultaneously, reaches the effect of energy-saving and emission-reduction.
For achieving the above object, it is proposed, according to the invention, provide a kind of adjustable water-vapor plasma turbulent burner of two-stage, it is characterised in that include first order plasma ignition device, second level plasma actuator and water vapour air supply system, wherein,
Described first order plasma ignition apparatus includes First air pipeline, inner combustion chamber, dense-and-weak separator, rotational flow generator, first order water vapour admission line, centre wind pipeline and first order plasma generator, and described First air pipeline is used for leading to First air; Described inner combustion chamber and dense-and-weak separator are respectively positioned in described First air pipeline and are all fixedly mounted on the inwall of described First air pipeline; There is ventilation gap between the inwall of described inner combustion chamber and First air pipeline, and described ventilation gap place arranges rotational flow generator; Described dense-and-weak separator for being separated into dense powder stream and light powder stream by First air, and dense powder flows into the burning of described inner combustion chamber and finally sprays into burner hearth, and light powder stream flows into described ventilation gap and finally sprays into burner hearth; One end of described first order water vapour admission line is stretched in described first order plasma generator, passes into water vapour in described first order plasma generator, and described water vapour derives from water vapour air supply system; One end of described centre wind pipeline is stretched in described first order plasma generator, for supply air or high pure oxygen; Described first order plasma generator is used for producing plasma flare, the firing tip of first order plasma generator stretches in described inner combustion chamber after the sidewall of described inner combustion chamber, forms flame for making dense powder stream and gaseous mixture burn in described inner combustion chamber;
Described second level plasma regulates device and includes second level water vapour admission line, second level plasma generator, inner second air admission line, outer second air admission line, described second level water vapour admission line is socketed in outside described First air pipeline, for supply water vapour, described water vapour is provided by described water vapour air supply system; Described second level plasma generator parcel is embedded in the water vapour admission line of the described second level, for producing plasma stream; Inner second air admission line is socketed in outside the water vapour admission line of the described second level, inner second air is passed into for the flame produced in inner combustion chamber, described outer second air admission line is socketed in outside described inner second air admission line, for the logical outer second air of the flame produced in inner combustion chamber; It is respectively arranged with rotational flow generator in described inner second air admission line and outer second air admission line.
Preferably, described second level plasma regulates device and also includes Air Heater, described Air Heater is arranged in the water vapour admission line of the second level, and it includes matrix and the through multiple air vents being arranged on matrix, for making water vapour Uniform Flow in the water vapour admission line of the second level.
Preferably, described water vapour air supply system includes adjustable first feeder and the second feeder.Described first feeder includes water vapour header, filter, first regulates valve, first stop valve, first-class measuring device, described water vapour header is used for storing water vapour, it includes casing and the water-level gauge being arranged on casing, piezometer and thermometer, its interior water vapour source can be the aerofluxus of power plant's hydrophobic development unit and oxygen-eliminating device, one end of described filter is connected with described water vapour header, its other end is divided into two-way, every road is sequentially connected with described first and regulates valve, first stop valve, first-class measuring device, and respectively described first order water vapour admission line and second level water vapour admission line provide water vapour, described first regulates valve for regulating the flow of water vapour, the second described feeder includes the second adjustment valve, the second stop valve, second measuring device, its interior water vapour derives from the tertiary air exhaust steam of dry coal dust, described second regulates valve for regulating the flow of the weary gas of described tertiary air, it is sequentially connected with described second stop valve and second measuring device, described second measuring device is connected with described first order water vapour admission line, provides water vapour for for described first order water vapour admission line.
Preferably, described second level plasma generator includes positive plate and minus plate, described positive plate and minus plate are arranged in the water vapour admission line of the second level, its shape is all cylindrically, described minus plate stretches in described positive plate and the external diameter of described minus plate is less than the internal diameter of described positive plate, so that the water vapour flowing through the two is ionized into plasma activated body.
In general, by the contemplated above technical scheme of the present invention compared with prior art, it is possible to obtain following beneficial effect:
1) raw material such as water vapour is drawn materials conveniently, resource rational utilization;
2) realize the efficient burning of coal, stable ignition, low-nitrogen discharged target, regulate regulation and control optimum operating condition by two grades;
3) industrial applicibility is strong, is beneficial to the transformation of current industrial turbulent burner.
4) solve burning by two-stage water-vapor plasma generator and be difficult to stable and NOxThe problem that pollutant emission is high. Be particularly well-suited to meager coal, anthracite etc. be difficult to catch fire light, NOxThe coal that growing amount is high, has the effect that low nitrogen surely fires.
Accompanying drawing explanation
Fig. 1 is the adjustable water-vapor plasma turbulent burner structural representation of two-stage;
Fig. 2 is steam conveyor tube road schematic diagram.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated. Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention. As long as just can be mutually combined additionally, technical characteristic involved in each embodiment of invention described below does not constitute conflict each other.
With reference to Fig. 1, Fig. 2, a kind of adjustable water-vapor plasma turbulent burner of two-stage, including first order plasma ignition device, second level plasma actuator and water vapour air supply system, wherein,
Described first order plasma ignition apparatus includes First air pipeline 1, inner combustion chamber 11, dense-and-weak separator 8, rotational flow generator 9, first order water vapour admission line 2, centre wind pipeline 12 and first order plasma generator 7, and described First air pipeline 1 is used for leading to First air; Described inner combustion chamber 11 and dense-and-weak separator 8 are respectively positioned in described First air pipeline 1 and are all fixedly mounted on the inwall of described First air pipeline 1;There is ventilation gap between described inner combustion chamber 11 and the inwall of First air pipeline 1, and described ventilation gap place arranges rotational flow generator 9; Described dense-and-weak separator 8 is for being separated into dense powder stream and light powder stream by First air, and dense powder flows into described inner combustion chamber 11 and burns and finally spray into burner hearth, and light powder stream flows into described ventilation gap and finally sprays into burner hearth; One end of described first order water vapour admission line 2 is stretched in described first order plasma generator 7, passes into water vapour in described first order plasma generator 7, and described water vapour derives from water vapour air supply system; One end of described centre wind pipeline 12 is stretched in described first order plasma generator 7, for supply air or high pure oxygen; Described first order plasma generator 7 is used for producing plasma flare, the firing tip of first order plasma generator 7 stretches in described inner combustion chamber after the sidewall of described inner combustion chamber 11, forms flame for making dense powder stream and gaseous mixture burn in described inner combustion chamber 11;
Described second level plasma regulates device and includes second level water vapour admission line 3, second level plasma generator 17, inner second air admission line 4, outer second air admission line 5, described second level water vapour admission line 3 is socketed in outside described First air pipeline 1, for supply water vapour, described water vapour is provided by described water vapour air supply system; Described second level plasma generator 17 parcel is embedded in described second level water vapour admission line 3, for producing plasma stream; Inner second air admission line 4 is socketed in outside described second level water vapour admission line 3, inner second air is passed into for the flame produced in inner combustion chamber 11, described outer second air admission line 5 is socketed in outside described inner second air admission line 4, for the logical outer second air of the flame produced in inner combustion chamber 11; It is respectively arranged with rotational flow generator 9 in described inner second air admission line 4 and outer second air admission line 5.
With reference to Fig. 1, second level water vapour admission line 3 wind passage is circular passage, and the big footpath of circular passage is D, and the internal diameter of First air pipeline 1 is d, D/d=21/20~6/5;
Further, described second level plasma regulates device and also includes Air Heater 10, described Air Heater 10 is arranged in second level water vapour admission line 3, and it includes matrix and the through multiple air vents being arranged on matrix, for making water vapour Uniform Flow in second level water vapour admission line 3.
Further, described water vapour air supply system includes adjustable first feeder and the second feeder. described first feeder includes water vapour header, filter 14, first regulates valve 15, first stop valve 16, first-class measuring device 13, described water vapour header is used for storing water vapour, it includes casing and the water-level gauge being arranged on casing, piezometer and thermometer, its interior water vapour source can be the aerofluxus of power plant's hydrophobic development unit and oxygen-eliminating device, one end of described filter 14 is connected with described water vapour header, its other end is divided into two-way, it is sequentially connected with described first and regulates valve 15, first stop valve 16, first-class measuring device 13, and respectively described first order water vapour admission line 2 and second level water vapour admission line 3 provide water vapour, described first regulates valve 15 for regulating the flow of water vapour, the second described feeder includes second adjustment valve the 18, second stop valve 19, second measuring device 20, its interior water vapour derives from the tertiary air exhaust steam of dry coal dust, described second regulates valve 18 for regulating the flow of the weary gas of tertiary air, it is sequentially connected with described second stop valve 19 and second measuring device 20, described second measuring device 20 is connected with described first order water vapour admission line 2, provides water vapour for for described first order water vapour admission line 2.
Preferably, described second level plasma generator 17 includes positive plate 21 and minus plate 22, described positive plate 21 and minus plate 22 are arranged in second level water vapour admission line 3, its shape is all in a cylindrical shape, described minus plate 22 stretches in described positive plate 21 and the external diameter of described minus plate 22 is less than the internal diameter of described positive plate 21, so that the water vapour flowing through the two is ionized into plasma activated body.
The first order plasma reactor 7 of the present invention is arranged in the front end coaxial with inner combustion chamber 11, and the First air air-flow containing coal dust separates through dense-and-weak separator 8, and dense powder flows into inner combustion chamber 11, is lighted by plasma torch. Total air inlet of first order plasma generator 7 is made up of former working gas centre wind 12 and the water vapour 2 supplemented. The water vapour pipeline supplemented, equipped with regulating valve, stop valve and effusion meter, controls to supplement air quantity and the ratio of water vapour by these valves.
The burner first order plasma reactor 7 of the present invention and the second level plasma actuator 17 step-less adjustment to air quantity all energy reconciliation statement its air quantity and temperature now, the air quantity that adjustment is the gas by regulating the electric current of plasma reactor and valve body conveying realizes. First order plasma generator 7 total blast volume controllable scope accounts for the 0~30% of First air air quantity, and wherein the content controllable scope of water vapour accounts for the 0~100% of the total gas of plasma reactor, and the modification scope of plasma working air current temperature is at 500K to 5000k; Second level water vapour plasma actuator 17 air quantity controllable scope accounts for the 0~10% of First air air quantity, and the controllable scope of plasma working air current temperature is at 500K~5000K.
With reference to Fig. 2, the water vapour source in water vapour header includes utilizing the tertiary air exhaust steam of dry coal dust, the steam of hydrophobic development unit, oxygen-eliminating device aerofluxus. By being processed by these gas samplings, control water vapour entrance plasma generator again through regulating valve, stop valve and effusion meter so that water vapour is fully utilized.
In use, the First air containing coal dust is divided into dense powder stream and light powder stream to the present invention through dense-and-weak separator 8. Dense powder stream and the first order water vapour plasma torch of incoming flow that coal powder density is high meet and are ignited. Flame extends to burner hearth from inner combustion chamber 11, then mixes with light powder stream, plasma state water vapour wind, inner second air, outer second air, and flame is increasing. Flame combustion is typically divided into three regions: first area is that dense powder stream is ignited spraying into burner hearth and light powder stream mixed combustion, and this combustion zone is referred to as primary zone, and its combustion process is fuel-rich combustion; Second area is the reduced zone formed between the light side of First air and secondary wind, this region O2Substantially exhaust, the NO formed in primary zonexIt is reduced into N in this region2; 3rd region is referred to as territory, reburning zone, by O in secondary wind2A large amount of supplies, fuel continues oxidizing fire. First order plasma reactor 7 is the water vapour of the plasma state passing into part high energy in First air, promotes burning on the one hand, plays the effect of low nitrogen on the other hand; The water vapour of the plasma state of second level plasma actuator 17 ejection just enters the reducing zone of flame, promotes the fuel type NO generated in burner hearthxAnd thermal NOxIt is reduced into N2. The regulation and control of the two-stage of plasma water steam, both can guarantee that the efficient burning of coal dust, can reduce again the generation of nitrogen oxides.
Embodiment 1
Keeping machine supplying powder powder-feeding amount to control at 15kg/h, total air volume control is at 134.8kg/h, and wherein First air accounts for the 15% of total blast volume, and outer second air accounts for the 52% of total blast volume.For plasma generator, by controlling power and the intake of plasma generator so that plasma generator Gas Jet temperature and air quantity reach requirement of experiment. First order plasma air quantity adjustable extent is the 0~30% of First air, i.e. the 0~4.5% of total blast volume, by regulating the control valve of water vapour so that in its first order plasma wind, the content of water vapour can be adjusted to 100% from 0, and temperature controls at about 4500K; Second level plasma air quantity adjustable extent is the 0~10% of First air, and temperature controls at about 1500K; Remaining Boiler pressure control is inner second air, basic experiment parameter such as table 1 in horizontal chamber furnace (oven).
Basic experiment parameter in table 1 horizontal chamber furnace (oven)
When carrying out repeatedly regulating two-stage plasma generator parameter, the combustion case that experiment finds in burner hearth is improved, and flame catches fire in advance, and its ignition distance is shortened to 150mm by original 200mm, observes that in stove skylight flame becomes clear. Using plasma regulates the NO that device effectively reduces simultaneouslyxThe generation of pollutant, from the NO that afterbody recordsxContent is decreased obviously. Thus, the burner of the present invention has the high steady effect firing low nitrogen burning.
Those skilled in the art will readily understand; the foregoing is only presently preferred embodiments of the present invention; not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. made within the spirit and principles in the present invention, should be included within protection scope of the present invention.

Claims (4)

1. the adjustable water-vapor plasma turbulent burner of two-stage, it is characterised in that include first order plasma ignition apparatus, second level plasma actuator and water vapour air supply system, wherein,
Described first order plasma ignition apparatus includes First air pipeline, inner combustion chamber, dense-and-weak separator, rotational flow generator, first order water vapour admission line, centre wind pipeline and first order plasma generator, and described First air pipeline is used for leading to First air; Described inner combustion chamber and dense-and-weak separator are respectively positioned in described First air pipeline and are all fixedly mounted on the inwall of described First air pipeline; There is ventilation gap between the inwall of described inner combustion chamber and First air pipeline, and described ventilation gap place arranges rotational flow generator; Described dense-and-weak separator for being separated into dense powder stream and light powder stream by First air, and dense powder flows into the burning of described inner combustion chamber and finally sprays into burner hearth, and light powder stream flows into described ventilation gap and finally sprays into burner hearth; One end of described first order water vapour admission line is stretched in described first order plasma generator, passes into water vapour in described first order plasma generator, and described water vapour derives from water vapour air supply system; One end of described centre wind pipeline is stretched in described first order plasma generator, for supply air or high pure oxygen; Described first order plasma generator is used for producing plasma flare, the firing tip of first order plasma generator stretches in described inner combustion chamber after the sidewall of described inner combustion chamber, forms flame for making dense powder stream and gaseous mixture burn in described inner combustion chamber;
Described second level plasma regulates device and includes second level water vapour admission line, second level plasma generator, inner second air admission line, outer second air admission line, described second level water vapour admission line is socketed in outside described First air pipeline, for supply water vapour, described water vapour is provided by described water vapour air supply system;Described second level plasma generator parcel is embedded in the water vapour admission line of the described second level, for producing plasma stream; Inner second air admission line is socketed in outside the water vapour admission line of the described second level, inner second air is passed into for the flame produced in inner combustion chamber, described outer second air admission line is socketed in outside described inner second air admission line, for the logical outer second air of the flame produced in inner combustion chamber; It is respectively arranged with rotational flow generator in described inner second air admission line and outer second air admission line.
2. a kind of adjustable water-vapor plasma turbulent burner of two-stage according to claim 1, it is characterized in that, described second level plasma regulates and is additionally provided with Air Heater on device, described Air Heater is arranged in the water vapour admission line of the second level, it includes matrix and the through multiple air vents being arranged on matrix, for making water vapour Uniform Flow in the water vapour admission line of the second level.
3. a kind of adjustable water-vapor plasma turbulent burner of two-stage according to claim 1, it is characterised in that described water vapour air supply system includes adjustable first feeder and the second feeder. described first feeder includes water vapour header, filter, first regulates valve, first stop valve, first-class measuring device, described water vapour header is used for storing water vapour, it includes casing and the water-level gauge being arranged on casing, piezometer and thermometer, its interior water vapour source can be the aerofluxus of power plant's hydrophobic development unit and oxygen-eliminating device, one end of described filter is connected with described water vapour header, its other end is divided into two-way, every road is sequentially connected with described first and regulates valve, first stop valve, first-class measuring device, and respectively described first order water vapour admission line and second level water vapour admission line provide water vapour, described first regulates valve for regulating the flow of water vapour, the second described feeder includes the second adjustment valve, the second stop valve, second measuring device, its interior water vapour derives from the tertiary air exhaust steam of dry coal dust, described second regulates valve for regulating the flow of the weary gas of described tertiary air, it is sequentially connected with described second stop valve and second measuring device, described second measuring device is connected with described first order water vapour admission line, provides water vapour for for described first order water vapour admission line.
4. a kind of adjustable water-vapor plasma turbulent burner of two-stage according to claim 1, it is characterized in that, described second level plasma generator includes positive plate and minus plate, described positive plate and minus plate are arranged in the water vapour admission line of the second level, its shape is all cylindrically, described minus plate stretches in described positive plate and the external diameter of described minus plate is less than the internal diameter of described positive plate, so that the water vapour flowing through the two is ionized into plasma activated body.
CN201610125265.3A 2016-03-05 2016-03-05 A kind of adjustable water-vapor plasma turbulent burner of two-stage Active CN105674257B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109899779A (en) * 2019-01-14 2019-06-18 江苏河海新能源股份有限公司 A kind of plasma low nitrogen combustion apparatus and method
CN110296433A (en) * 2019-05-13 2019-10-01 江苏天楹环保能源成套设备有限公司 Combustion chamber high temperature burning zone temprature control method and device
CN110360548A (en) * 2019-08-01 2019-10-22 沈阳航空航天大学 Low-NOx combustor based on plasma excitation classification overheavy firing
CN111246649A (en) * 2020-01-16 2020-06-05 江苏河海新能源股份有限公司 Water vapor plasma generating device

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EP1371905A1 (en) * 2001-02-27 2003-12-17 Yantai Longyuan Power Technology Co. Ltd. Assembled cathode and plasma igniter with such cathode
RU2230991C2 (en) * 2000-10-27 2004-06-20 Карпенко Евгений Иванович Method of lighting-up and/or stabilization of pulverized coal flame in boiler units
CN103277792A (en) * 2013-05-31 2013-09-04 衢州昀睿工业设计有限公司 Plasma pulverized coal burner

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Publication number Priority date Publication date Assignee Title
CN1230656A (en) * 1998-03-31 1999-10-06 烟台开发区龙源电力燃烧控制工程有限公司 Burner for plasma ignitor
RU2230991C2 (en) * 2000-10-27 2004-06-20 Карпенко Евгений Иванович Method of lighting-up and/or stabilization of pulverized coal flame in boiler units
EP1371905A1 (en) * 2001-02-27 2003-12-17 Yantai Longyuan Power Technology Co. Ltd. Assembled cathode and plasma igniter with such cathode
CN103277792A (en) * 2013-05-31 2013-09-04 衢州昀睿工业设计有限公司 Plasma pulverized coal burner

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109899779A (en) * 2019-01-14 2019-06-18 江苏河海新能源股份有限公司 A kind of plasma low nitrogen combustion apparatus and method
CN110296433A (en) * 2019-05-13 2019-10-01 江苏天楹环保能源成套设备有限公司 Combustion chamber high temperature burning zone temprature control method and device
CN110360548A (en) * 2019-08-01 2019-10-22 沈阳航空航天大学 Low-NOx combustor based on plasma excitation classification overheavy firing
CN111246649A (en) * 2020-01-16 2020-06-05 江苏河海新能源股份有限公司 Water vapor plasma generating device

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