CN103851623B - A kind of combustor of pressure Hui Yan - Google Patents

A kind of combustor of pressure Hui Yan Download PDF

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Publication number
CN103851623B
CN103851623B CN201410121259.1A CN201410121259A CN103851623B CN 103851623 B CN103851623 B CN 103851623B CN 201410121259 A CN201410121259 A CN 201410121259A CN 103851623 B CN103851623 B CN 103851623B
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China
Prior art keywords
combustor
air
flame
combustion chamber
fuel
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CN201410121259.1A
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Chinese (zh)
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CN103851623A (en
Inventor
李延新
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Individual
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Priority to CN201410121259.1A priority Critical patent/CN103851623B/en
Priority to PCT/CN2014/000371 priority patent/WO2015143582A1/en
Priority to EP14795537.1A priority patent/EP3124861A4/en
Priority to RU2014144080A priority patent/RU2612694C2/en
Priority to US14/400,883 priority patent/US20160265766A1/en
Publication of CN103851623A publication Critical patent/CN103851623A/en
Priority to IN9354DEN2014 priority patent/IN2014DN09354A/en
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Publication of CN103851623B publication Critical patent/CN103851623B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • F23D14/24—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/002—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion
    • F23C7/004—Combustion apparatus characterised by arrangements for air supply the air being submitted to a rotary or spinning motion using vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C7/00—Combustion apparatus characterised by arrangements for air supply
    • F23C7/02—Disposition of air supply not passing through burner
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details, e.g. burner cooling means, noise reduction means
    • F23D11/40—Mixing tubes or chambers; Burner heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/03006—Reverse flow combustion chambers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C3/00—Combustion apparatus characterised by the shape of the combustion chamber

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
  • Air Supply (AREA)

Abstract

Various fuel oils, the burner such as combustion gas and coal dust suffers from the combustor for surely combustion and air distribution, the invention discloses a kind of combustor of pressure Hui Yan, close up to palm of the hand direction including likeness in form finger and bend to arcuate structure, and the combustor of hollow form arc cavity is symmetrical arranged into around the palm of the hand, it is provided with for the multiple spinning disks to combustion chamber conveying combustion air in the flame combustion chamber port of export fit inside, embedded Inner Wall of Combustion Chamber is installed in the middle part of the combustor inner end, and outlet is through the fuel nozzle of Inner Wall of Combustion Chamber, the air of the combustor is flame export with the mixed port of export of fuel.The combustor of pressure Hui Yan of the present invention, can overcome the defects such as prior art Flame stability is poor, fuel burn-off rate is low and the feature of environmental protection is poor, to realize flame holding is good, fuel burn-off rate is high and the feature of environmental protection is good advantage.

Description

A kind of combustor of pressure Hui Yan
Technical field
A kind of the present invention relates to technical field of burner, in particular it relates to combustor of pressure Hui Yan.
Background technology
Cover fuel oil, combustion gas, the combustor of the conventional burners of burning coal powder, burning oxygen supply pattern is all forward air distribution (wind Trend consistent with flame's flow) as shown in figure 1, when secondary wind from the outside of spinning disk (also known as stable flame pan, diffusion sheet) at a high speed The negative pressuren zone of local when flowing through, is just defined in front of stable flame pan, attracts the passive backflow of flame flame envelope, continuous ejection of constantly igniting Fuel.In order to realize the accounting of this kind of mode First air of steady fuel efficiency fruit typically 20% or so, remaining 80% air secondary Wind mixes vigorous combustion with fuel strongly in the exit of combustor.
Traditional combustion room shown in Fig. 1, including combustor (such as combustor 3), the side wall of combustor is outwardly arc Shape structure, one end of combustor are for the flame export of (such as flame 6) of jetting out flames, in the center position of combustion chamber The fuel nozzle (such as fuel nozzle 2) just to flame export is provided with, also symmetrical in the both sides up and down of combustion chamber fuel nozzle A pair of spinning disks (such as spinning disk 5) are provided with, the other end of combustor is provided with horizontally disposed air supply duct, in air supply duct Portion is provided with air outlet just to fuel nozzle periphery and for the aerator to combustor feeding secondary wind (such as secondary wind 4) (such as drum Blower fan is 1).
The defect of this kind of forward air distribution mode is：
(1) for the higher fire retardant fuel of Small Combustion room or burning-point, as local decompression's flame passively flows back Ability weaker, the temperature for adding starting stage air and fuel is all relatively low, therefore often ignition difficulties and easily de- fire causes Combustion instability；
(2) as the air quantity of First air is little, flow velocity is low, the burning of fuel is occurred mainly in outside combustor, is run into high viscous The fuel oil of degree or other fire retardant fuel, burn-off rate will be decreased obviously, and cause being significantly increased for energy consumption and tail gas pollution；
(3) for large-scale combustor or inflammable fuel, due to the indoor temperature of burning very high, secondary wind with Before fuel blending, temperature is just very high, causes partial oxidation to react with nitrogen, increased the nitrogen oxides row in flue gas Put.
Content of the invention
It is an object of the invention to, for the problems referred to above, a kind of combustor of pressure Hui Yan is proposed, to realize flameholding Property good, fuel burn-off rate is high and the feature of environmental protection is good advantage.
For achieving the above object, the technical solution used in the present invention is：A kind of combustor of pressure Hui Yan, including being similar to handss Refer to close up the combustor for arcuate structure being bent to palm of the hand direction and being symmetrical arranged into hollow form arc cavity around the palm of the hand, The tip inside of the combustor coordinates the multiple spinning disks being provided with for combustion chamber conveying combustion air, the plurality of Spinning disk, including being arranged on the inside of the combustor crater and for the multiple of combustion chamber radial delivery secondary wind Secondary wind spinning disk (or air port).
Further, the plurality of spinning disk, including being arranged on the inside of the combustor finger tip and being used for defeated to combustor Send multiple tertiary air spinning disks of tertiary air.
Further, embedded Inner Wall of Combustion Chamber is installed in the middle part of the combustor and is exported through Inner Wall of Combustion Chamber Fuel nozzle, air and the mixed port of export of fuel are the flame export of the combustor.
Further, the combustor hollow form arc cavity away from the side of flame export, be provided with air-supply passage, Air outlet is provided with inside the air-supply passage just to the cavity wall of the empty shape arc cavity of combustor and for defeated to combustor Send the aerator of combustion air.
The combustor of the pressure Hui Yan of various embodiments of the present invention, closes up to palm of the hand direction bending camber including being similar to finger Structure and the combustor of hollow form arc cavity is symmetrical arranged into around the palm of the hand, coordinate in the tip inside of combustor and be provided with For the multiple spinning disks to combustion chamber feeding secondary wind, be provided with the middle part of combustor embedded Inner Wall of Combustion Chamber and The fuel nozzle through Inner Wall of Combustion Chamber is exported, air is flame export with the mixed conjoint outlet end of fuel；Due to adopting The air distribution mode of secondary wind forced refluence, flame and high-temperature gas can be forced to flow to fuel nozzle makes fuel light rapidly, from And the defect that prior art Flame stability is poor, fuel burn-off rate is low and the feature of environmental protection is poor can be overcome, to realize flameholding Property good, fuel burn-off rate is high and the feature of environmental protection is good advantage.
Other features and advantages of the present invention will be illustrated in the following description, also, partly be become from description Obtain it is clear that or being understood by implementing the present invention.
Below by drawings and Examples, technical scheme is described in further detail.
Description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for description, the reality with the present invention Applying example is used for explaining the present invention together, is not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the operation principle schematic diagram of traditional combustion room forward air distribution；
Fig. 2 is the operation principle schematic diagram of the combustor air distribution that the present invention forces Hui Yan.
In conjunction with accompanying drawing 1, in the embodiment of the present invention, reference is as follows：
1- aerators；2- fuel nozzles；3- combustor；4- secondary wind；5- spinning disks；6- flames.
In conjunction with accompanying drawing 2, in the embodiment of the present invention, reference is as follows：
1- aerators；2- fuel nozzles；3- combustor；4- secondary wind spinning disks；5- tertiary air spinning disks；6- flames.
Specific embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
According to embodiments of the present invention, as shown in Figure 2, there is provided a kind of combustor of pressure Hui Yan.
The combustor of the pressure Hui Yan of the present embodiment, including be similar to finger close up to palm of the hand direction bend to arcuate structure, And the combustor (such as combustor 3) of hollow form arc cavity is symmetrical arranged into around the palm of the hand, coordinate in the tip inside of combustor It is provided with for the multiple spinning disks to combustion chamber conveying combustion air, including being arranged on the inside of combustor crater and being used for To multiple secondary wind spinning disks (such as secondary wind spinning disk 4) of combustor feeding secondary wind, including being arranged on combustor crater Inner side and the multiple tertiary air spinning disks (such as tertiary air spinning disk 5) for conveying tertiary air to combustor, in combustor Portion is provided with embedded Inner Wall of Combustion Chamber and exports fuel nozzle (such as fuel nozzle 2) through Inner Wall of Combustion Chamber, combustor and combustion The conjoint outlet end of material nozzle is exported for flame (such as flame 6).
In the above-described embodiments, above-mentioned combustor hollow form arc cavity away from the side of flame export, be provided with and send Wind passage, is provided with air outlet inside air-supply passage just to the cavity wall of the empty shape arc cavity of combustor and is used for burning Room conveys the aerator (such as aerator 1) of combustion air.
As shown in Fig. 2 the combustor of the pressure Hui Yan of above-described embodiment, employs the air distribution side of secondary wind forced refluence Formula, eliminates the First air spinning disk at traditional combustion room rear portion, increased the secondary wind of combustor head and the eddy flow of tertiary air Piece.Using pressure Hui Yan combustor air distribution when, the accounting of center First air seldom, in order to provide the oxygen of flame kernel； The secondary wind accounting of radial direction forced refluence is then larger, turns back after which reaches combustor medial end, is formed and flows to crater Interior rotational airflow；Through being tangentially rotating ejection at tertiary air spinning disk, be sufficiently mixed with interior rotational airflow guarantees to fire remaining air The final after-flame of material.Air distribution layout as the combustor of pressure Hui Yan, can at least reach following beneficial effect：
(1) secondary wind of reverse outer flux, wraps up in and flows at fuel nozzle with flame flame envelope, due to the temperature of now air-flow Degree is very high, can effectively light the high-flash of continuous ejection or fire retardant fuel, and form the inward turning at combustor exit of turning back Flame, therefore the steady flame effect of fire retardant fuel also can be fine；
(2) air quantity of secondary wind is very big, and its rotation function can be broken up rapidly The fuel stream and is sufficiently mixed with which, due to Fuel is in the environment of high temperature polyoxy when spraying, and therefore just starts vigorous combustion at once, and this point is for high viscosity or difficulty Particularly significant for the burn-off rate of combustion fuel；
(3) pathogenic wind-warm in secondary wind spinning disk exit is relatively low, and secondary wind is constantly heated when fuel nozzle is flowed to, with this Reduce the temperature of inward turning flame simultaneously, advantageously reduce the generation of high temperature modification nitrogen oxides；
(4) the indoor coefficient of excess air that burns is controlled in 0.7-0.8 or so, and oxygen debt environmental benefits are in fuel type nitrogen oxidation The reduction of thing, and reduce the generation of high temperature modification nitrogen oxides；
(5) tertiary air spinning disk is arranged at combustor exit, now adds the tertiary air of low temperature to can ensure that fuel Burn-off rate, the temperature that can reduce flame again reduce the generation of high temperature modification nitrogen oxides.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, Although being described in detail to the present invention with reference to the foregoing embodiments, for a person skilled in the art, which still may be used To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic. All any modification, equivalent substitution and improvements that within the spirit and principles in the present invention, is made etc., should be included in the present invention's Within protection domain.

Claims (3)

1. a kind of combustor of pressure Hui Yan, it is characterised in that close up to palm of the hand direction bending camber knot including being similar to finger Structure and the combustor of hollow form arc cavity is symmetrical arranged into around the palm of the hand, in the flame combustion chamber port of export fit inside It is provided with for the multiple spinning disks to combustion chamber conveying combustion air；
The plurality of spinning disk, conveys to combustion chamber including being arranged on the inside of the flame combustion chamber port of export and being used for Multiple secondary wind spinning disks of radial second wind；
The combustor of pressure Hui Yan, due to the air distribution mode using secondary wind forced refluence, can force flame and High Temperature Gas Direction of flow fuel nozzle makes fuel light rapidly；
The combustor hollow form arc cavity away from the side of flame export, be provided with air-supply passage, logical in the air-supply Air outlet is provided with inside road just to the cavity wall of the empty shape arc cavity of combustor and for conveying the drum of combustion air to combustor Blower fan；
Using pressure Hui Yan combustor air distribution when, the accounting of center First air seldom, in order to provide the oxygen of flame kernel.
2. the combustor of pressure Hui Yan according to claim 1, it is characterised in that pacify at the middle part of the combustor inner end Equipped with embedded Inner Wall of Combustion Chamber and fuel nozzle through Inner Wall of Combustion Chamber is exported, the air of the combustor is mixed with fuel The port of export afterwards is flame export.
3. the combustor of pressure Hui Yan according to claim 2, it is characterised in that the plurality of spinning disk, including for To multiple tertiary air spinning disks that flame conveys tangential tertiary air.
CN201410121259.1A 2014-03-28 2014-03-28 A kind of combustor of pressure Hui Yan Active CN103851623B (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN201410121259.1A CN103851623B (en) 2014-03-28 2014-03-28 A kind of combustor of pressure Hui Yan
PCT/CN2014/000371 WO2015143582A1 (en) 2014-03-28 2014-04-04 Combustion chamber capable of forcibly returning flame
EP14795537.1A EP3124861A4 (en) 2014-03-28 2014-04-04 Combustion chamber capable of forcibly returning flame
RU2014144080A RU2612694C2 (en) 2014-03-28 2014-04-04 Combustion chamber with forced flow reversing
US14/400,883 US20160265766A1 (en) 2014-03-28 2014-04-04 A forced reversal combustion chamber
IN9354DEN2014 IN2014DN09354A (en) 2014-03-28 2014-11-07

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410121259.1A CN103851623B (en) 2014-03-28 2014-03-28 A kind of combustor of pressure Hui Yan

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CN103851623A CN103851623A (en) 2014-06-11
CN103851623B true CN103851623B (en) 2017-03-15

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US (1) US20160265766A1 (en)
EP (1) EP3124861A4 (en)
CN (1) CN103851623B (en)
IN (1) IN2014DN09354A (en)
RU (1) RU2612694C2 (en)
WO (1) WO2015143582A1 (en)

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CN105910102B (en) * 2016-05-27 2018-04-10 中国科学技术大学 A kind of fire whirl formula burner
IT201600129822A1 (en) * 2016-12-22 2018-06-22 Ecoflam Bruciatori S P A LOW-EMISSION COMBUSTION HEAD OF NITROGEN OXIDES WITH OVER-LOCKING MUNICIPALITY WITH RECIRCULATION MEANS
IT201600129779A1 (en) * 2016-12-22 2018-06-22 Ecoflam Bruciatori S P A LOW-EMISSION COMBUSTION HEAD OF NITROGEN OXIDES WITH AIR GUIDES
IT201600129792A1 (en) * 2016-12-22 2018-06-22 Ecoflam Bruciatori S P A LOW-EMISSION COMBUSTION HEAD OF NITROGEN OXIDES WITH MEANS OF MOUTHPIECE
CN106969347B (en) * 2017-05-16 2023-11-03 中煤科工清洁能源股份有限公司 Boiler with fire locking device
CN112361331B (en) * 2019-10-11 2022-04-29 中国石油大学(华东) Plateau type fuel oil burner with high injection smoke and design method

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CN1055230A (en) * 1991-01-16 1991-10-09 哈尔滨普华煤燃烧技术开发中心 Burner for various kinds of coal
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Also Published As

Publication number Publication date
CN103851623A (en) 2014-06-11
EP3124861A1 (en) 2017-02-01
RU2612694C2 (en) 2017-03-13
EP3124861A4 (en) 2017-11-22
IN2014DN09354A (en) 2015-07-17
RU2014144080A (en) 2016-05-27
US20160265766A1 (en) 2016-09-15
WO2015143582A1 (en) 2015-10-01

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