CN100416165C - Oxygen-enriched igniting and firing stabilizer without oil - Google Patents
Oxygen-enriched igniting and firing stabilizer without oil Download PDFInfo
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- CN100416165C CN100416165C CNB2006100654379A CN200610065437A CN100416165C CN 100416165 C CN100416165 C CN 100416165C CN B2006100654379 A CNB2006100654379 A CN B2006100654379A CN 200610065437 A CN200610065437 A CN 200610065437A CN 100416165 C CN100416165 C CN 100416165C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The present invention discloses an oxygen enriched oil-free igniting and combusting stabilizer which is composed of an igniting and combusting stabilizing jet and a connecting control pipeline or is composed of the igniting and combusting stabilizing jet, a combusting stabilizing back flow zone oxygen enriched jet of a pulverized coal jet on an adjacent upper or lower layer and a connecting control pipeline, wherein the igniting and combusting stabilizing jet or the igniting and combusting stabilizing jet and the combusting stabilizing back flow zone oxygen enriched jet are connected with an oxygen source through the control pipeline. The present invention effectively avoids the trouble that cathodes and anodes are burnt and are replaced frequently, the disadvantage that a large quantity of strategic materials, such as valuable tungsten, etc. are consumed in a plasma oil-free igniting mode, and the defects of low heat capacity of air, high igniting failure probability and poor adaptability to coal varieties in a high temperature air mode. Adaptability to coal varieties is wide, and running power consumption and running maintenance cost are greatly decreased. The present invention has the advantages of long service life and high reliability, can be used as an igniting burner and a main burner, and can also effectively prevent the serious safety accident that boilers are extinguished because of the fluctuation of coal quality.
Description
Technical field
The present invention relates to a kind of station boiler, the industrial furnace equal energy source utilizes in the process, to igniting and the smooth combustion apparatus that coal dust carries out ignition, especially use oxygen rich gas, can be simultaneously as the non-oil ignition and the smooth combustion apparatus of start-up burner and main burner.
Background technology
At present, can be simultaneously have as start-up burner and main burner that plasma non-oil ignition surely fires, two kinds of technical approach of the steady combustion of high temperature air non-oil ignition.
The plasma non-oil ignition smooth combustion apparatus is made of ignition spout, negative electrode, anode, water-cooling system, large power supply etc.Take the large power supply about 150～400KW, ignition temperature is up to the plasma arc of degree up to ten thousand, and then heating, reliable ignition and steady combustion of realizing coal dust.Have many characteristics such as igniting is fast, reliable and stable, coal adaptability is wider.Its weak point is, the result of degree high temperature high-power, up to ten thousand, even if taked the water-cooled measure, negative electrode anode scaling loss is serious, only tens of hours tungsten cathode life-span, only hundreds of hours anode life, need frequent negative electrode, the anode changed, rather trouble, in case fault promptly influences the safe and reliable operation of station boiler and industrial furnace, and consume more strategic materials materials such as valuable tungsten.And power consumption is higher, is example with the station boiler of corner tangential firing, four plasma pulverized coal ignition burners of separate unit boiler configuration, and power promptly reaches about 600～1600KW.Separate unit boiler annual operating cost is up to about 600,000.
The high temperature air igniting and firing stabilizer without oil is made of ignition spout, high-frequency induction head, large power supply etc.Take tens of kilowatts high-frequency induction system,,, realize lighting and surely combustion of coal dust air heat high temperature by the eddy current electrocaloric effect of metal pipe-wall.Have simple in structure, main body and do not have mechanical moving component, the more high many characteristics of reliability.Its weak point is, the temperature of air heat, the restriction of the metal of originally experiencing permission wall temperature, and the thermal capacity of air own is lower, and ature of coal is poor more, water content is high more, and its thermal capacity is big more, high temperature air possibly can't be heated to burning-point with coal dust at any time and it is lighted, and the loss of ignition probability is higher.It is bigger that application is influenced by ature of coal, and coal adaptability is relatively poor.
Summary of the invention
The technical issues that need to address of the present invention just are to overcome the defective of prior art, and a kind of igniting and firing stabilizer without oil that uses oxygen rich gas, can be used as start-up burner and main burner is provided.It has effectively avoided negative electrode, anode scaling loss and the frequent trouble of changing and the shortcoming that consumes more strategic materials materials such as valuable tungsten of plasma non-oil ignition mode, and the thermal capacity of high temperature air mode air own is lower, the deficiency that the loss of ignition probability is higher, coal adaptability is relatively poor, coal adaptability is wide, and has significantly reduced the power consumption and the operation and maintenance cost of operation.Life-span is long, reliability is high, and, can prevent effectively that also the ature of coal fluctuation from causing the serious accident of boiler extinguishment.
For addressing the above problem, the present invention adopts following technical scheme:
A kind of oxygen-enriched igniting and firing stabilizer without oil, constitute by ignition smooth combustion spout and control piper, it also is provided with the smooth-combustion back-flow region oxygen rich air spout of going up of ignition smooth combustion spout vicinity or lower floor's coal dust spout, the ignition smooth combustion spout is connected with source of oxygen by control piper with smooth-combustion back-flow region oxygen rich air spout, to adapt to the igniting needs of large-sized station boiler.
Ignition smooth combustion spout outlet side outward appearance of the present invention is circle or rectangle, comprise wind inlet, secondary wind inlet, oxygen rich air import, the ignition smooth combustion spout comprises five layers of housing, separated by dividing plate between the housing, oneself constitutes secondary air channel outside to inside, last wind passage reaches wind passage, center ring secondary air channel, wind passage of center ring and center oxygen rich air passage next time; Secondary air channel, center ring secondary air channel and secondary wind inlet communicate, and connect the secondary air channel road; Last wind passage and next time wind passage, wind passage of center ring and a wind inlet communicate, and connect air pipe line one time; Center oxygen rich air passage and oxygen rich air import communicate, and are connected with source of oxygen by control piper; Secondary air channel, last wind passage and next time wind passage, center ring secondary air channel be provided with the uniform flow orifice plate, last wind passage and next time the dividing plate between the wind passage be that camber line inwardly shrinks at the ignition smooth combustion spout port of export.
The entrance point of the center oxygen rich air passage of ignition smooth combustion spout of the present invention, the entrance point of a wind passage of center ring all are equipped with at least two heating element heaters, the heating element heater of the entrance point of the center oxygen rich air passage of ignition smooth combustion spout, the adjacent arrangement of heating element heater with the entrance point of a wind passage of center ring, heating element heater and power supply or frequency converter are electrically connected, each heating element heater can switch to another power supply or frequency converter from a power supply or frequency converter, and each power supply or frequency converter can switch to another heating element heater from a heating element heater.The ature of coal situation be can look, heating power, heating curve dynamically adjusted.
Smooth-combustion back-flow region oxygen rich air spout of the present invention is a coal dust reamer enclosed cavity, and described coal dust reamer enclosed cavity front end is to the perforate of burner hearth direction, below the reamer or above be connected with source of oxygen by control piper; Perhaps, the coal dust spout does not have reamer, and described smooth-combustion back-flow region oxygen rich air spout is the orifice plate sealing mouth of pipe that is equivalent to the reamer position, and the described orifice plate sealing mouth of pipe is connected with source of oxygen by control piper.
Smooth-combustion back-flow region oxygen rich air spout entrance point of the present invention, at least two heating element heaters are housed, heating element heater and power supply or frequency converter are electrically connected, each heating element heater can switch to another power supply or frequency converter from a power supply or frequency converter, and each power supply or frequency converter can switch to another heating element heater from a heating element heater.
Heating element heater of the present invention is ceramic heat rod or intense radiation heating tube or high frequency low-temperature plasma heating tube or heating using microwave pipe.
Control piper of the present invention distributes cabinet and terminal switch board to connect and compose successively by source of the gas switch board, source of the gas, and described source of the gas switch board is connected and composed by filter, hand-operated valve, voltage-stablizer or proportional control valve, Pressure gauge, pressure transmitter, control valve pipeline successively; Described source of the gas distributes cabinet to be connected and composed by filter, hand-operated valve, control valve, bus-bar, Pressure gauge, hand-operated valve, control valve pipeline successively; Described terminal switch board is connected and composed successively by filter, hand-operated valve, Pressure gauge, control valve, non-return valve, or connects and composes with 2 branch lines that are in turn connected to form by hand-operated valve, control valve, non-return valve after being connected successively by filter, hand-operated valve, Pressure gauge again.
Source of oxygen of the present invention can go out oxygen for bottled industrial oxygen or air-separating oxygen-making machine.The air-separating oxygen-making machine according to actual needs, can select Deep Cooling Method (cryogenic rectification method) oxygenerator, or pressure swing adsorption oxygen, or the embrane method oxygenerator, or transformation absorption-Deep Cooling Method (cryogenic rectification method) associating oxygenerator, embrane method-Deep Cooling Method (cryogenic rectification method) associating oxygenerator.Oxygenerator should dispose two covers at least, or is equivalent to not rest continuously a cover of air feed.
The present invention opens the heating element heater energising of a wind passage of center ring of ignition smooth combustion spout, can be in wind passage of center ring, the pulverized coal particle at this place that flows through is continued to heat; Open near the interior heating element heater of center oxygen rich gas passage of its position correspondence simultaneously, can the oxygen rich gas that be about to and the heating coal dust converges be heated simultaneously; At last, in port of export vicinity, high hot coal powder and high hot oxygen rich gas meet and catching fire, because oxygen rich gas concentration height, reaction is fast, ignition temperature is high, and then add wind coal dust of the whole center ring of thermal ignition, last wind coal dust and wind coal dust next time rapidly, realize the reliable ignition and the steady combustion of coal dust firing.
And, at station boiler, the industrial furnace igniting, during underload that peak regulation is put out a fire easily, in case the flame monitor last or lower floor's coal dust spout correspondence that each ignition smooth combustion spout is close to detects the flame deepening, flame intensity dies down, or flame intensity is lower than certain numerical value, smooth-combustion back-flow region oxygen rich air spout is promptly opened heating element heater, adjust heating power, heating curve, inject high hot oxygen rich gas to coal dust spout smooth-combustion back-flow region territory, because oxygen rich gas concentration height, reaction is fast, the ignition temperature height, and then steady combustion of high heat of smooth-combustion back-flow region guaranteed in rapid heating, realize the reliable steady combustion of this coal dust spout flame, effectively prevent the serious accident of boiler extinguishment.And the heat radiation of smooth-combustion back-flow region can be too not fast, can take turns intermittently or the continuation mode air feed.
The present invention is as station boiler, industrial furnace igniter, and when station boiler, industrial furnace igniting, after purging through security of operation, each ignition smooth combustion spout is opened heating element heater, opened the oxygen rich air air feed, and directly firing coal-dust moves igniting; When station boiler, industrial furnace rise to suitable load, the flame monitor that each spout is installed detects that corresponding flame is bright, flame intensity is enough strong, during above certain numerical value, this ignition smooth combustion spout or ignition smooth combustion spout and smooth-combustion back-flow region oxygen rich air spout change continuation mode and are intermittent mode heating in turn, air feed; In case each flame monitor detects that corresponding flame deepening, flame intensity die down or flame intensity when being lower than certain numerical value, corresponding ignition smooth combustion spout or ignition smooth combustion spout and smooth-combustion back-flow region oxygen rich air spout then recover continuation mode heating, air feed immediately.When station boiler, industrial furnace rise to the load that is difficult for fire extinguishing, then stop heating, air feed.Both guarantee the safe and reliable of igniting and steady combustion, can be used as start-up burner and main burner simultaneously.
Coal adaptability of the present invention is wide, energy consumption is low is, by dynamic adjustment heating power, heating curve, heats an amount of coal dust and oxygen rich gas and makes its trouble-free burning heat release, and then realize the reliable ignition of each coal, steady combustion.
Life-span of the present invention is long, reliability is high is, installs no scaling loss and easily worn part, when a certain cell failure, can automatically switch to another stand-by unit operation by control system, thereby system can move reliably and with long-term.
Safe operation for assurance device, during igniting, before not starting pulverized coal preparation system, should start wind, secondary wind earlier safe purging is carried out in respective line and igniting and steady combustion spout, start wind heating element heater of center ring then successively, start pulverized coal preparation system, start center oxygen rich gas heating element heater, open oxygen rich gas; When stopping, closing oxygen rich gas successively, stop center oxygen rich gas heating element heater, stop pulverized coal preparation system, stop wind heating element heater of center ring, after several minutes, close wind, secondary wind again; Still need remain in operation as station boiler, industrial furnace, need have a certain amount of secondary wind that igniting and steady combustion spout are purged cooling.
The invention has the beneficial effects as follows, make its trouble-free burning heat release and the power of enough lighting a fire reliably is provided to heat an amount of coal dust and oxygen rich gas, but not provide in the electrical power mode fully,, can be used as start-up burner and main burner simultaneously so power consumption is lower; The burning problems of no parts, no costliness and the not good enough large power supply of fault rate, coal adaptability is wide, and the life-span is long, has significantly reduced the power consumption and the operation and maintenance cost of operation; When individual component or cell failure, can switch to spare part or unit immediately, thereby reliability is higher; And can move reliably and with long-term continuously.And, can prevent effectively that the ature of coal fluctuation from causing the serious accident of boiler extinguishment.Under current crude resources situation in short supply, expensive, help station boiler, industrial furnace and change the mode that former coal burner is thrown oil drop fire, steady combustion, the operations objective that realize energy savings, reduce investment and operating cost, increase economic efficiency.
And; on air-separating oxygen-making machine basis, inert protective gas, argon gas, oxygen, nitrogen can supportingly be provided, make things convenient for the fire extinguishing and the security maintenance maintenance of powder manufacturing apparatus system; and welding protection, cutting usefulness gas need, but and vending articles argon gas, nitrogen satisfy society need.
Description of drawings
Fig. 1 is the embodiment of the invention 1 a described structural representation.
Fig. 2 is the embodiment of the invention 2 described structural representations.
Fig. 3-1,3-2,3-3,3-4,3-5 are ignition smooth combustion spout structure schematic diagram of the present invention.
Fig. 4-1, Fig. 4-2 is the smooth-combustion back-flow region oxygen rich air spout structure schematic diagram of going up of ignition smooth combustion spout vicinity of the present invention or lower floor's coal dust spout.
Fig. 5 is the embodiment of the invention 1 a described control piper structural representation.
Fig. 6 is the embodiment of the invention 2 described control piper structural representations.
The specific embodiment
As shown in Figure 1, a kind of oxygen-enriched igniting and firing stabilizer without oil of the present invention, by ignition smooth combustion spout 1 and connect control piper 2 and constitute, the ignition smooth combustion spout is connected with source of oxygen 3 by control piper, and described source of oxygen can go out oxygen for bottled industrial oxygen or air-separating oxygen-making machine.
Shown in Fig. 3-1,3-2,3-3,3-4,3-5, ignition smooth combustion spout outlet side outward appearance of the present invention is circle or rectangle, comprise wind inlet 1-1, a secondary wind inlet 1-2, oxygen rich air import 1-3, the ignition smooth combustion spout comprises five layers of housing, separate by dividing plate 1-4 between the housing, reach wind passage 1-7, center ring secondary air channel 1-8, center ring wind passage 1-9 and center oxygen rich air passage 1-10 next time from constituting secondary air channel 1-5, last wind passage 1-6 outside to inside; Secondary air channel, center ring secondary air channel and secondary wind inlet communicate, and connect the secondary air channel road; Last wind passage and next time wind passage, wind passage of center ring and a wind inlet communicate, and connect air pipe line one time; Center oxygen rich air passage and oxygen rich air import communicate, and are connected with source of oxygen by control piper; Secondary air channel, last wind passage and next time wind passage, center ring secondary air channel be provided with uniform flow orifice plate 1-11, last wind passage and next time the dividing plate between the wind passage be that camber line inwardly shrinks at the ignition smooth combustion spout port of export.
The entrance point of the center oxygen rich air passage of ignition smooth combustion spout of the present invention, the entrance point of a wind passage of center ring all are equipped with at least two heating element heater 1-12, the heating element heater of the entrance point of the center oxygen rich air passage of ignition smooth combustion spout, the adjacent arrangement of heating element heater with the entrance point of a wind passage of center ring, heating element heater and power supply or frequency converter are electrically connected, each heating element heater can switch to another power supply or frequency converter from a power supply or frequency converter, and each power supply or frequency converter can switch to another heating element heater from a heating element heater.The ature of coal situation be can look, heating power, heating curve dynamically adjusted.
Heating element heater of the present invention can be ceramic heat rod or intense radiation heating tube or high frequency low-temperature plasma heating tube or heating using microwave pipe.
As shown in Figure 5,1#, N# represent respectively certain station boiler, industrial furnace 1, the steady burning-point of N furnace igniting; Source of oxygen 3 can be selected air-separating oxygen-making machine or industrial oxygen bottle.Control piper of the present invention distributes cabinet 2-2 and terminal switch board 2-3 to connect and compose successively by source of the gas switch board 2-1, source of the gas, and described source of the gas switch board is connected and composed by filter 2-1-1, hand-operated valve 2-1-2, voltage-stablizer or proportional control valve 2-1-3, pressure transmitter and Pressure gauge 2-1-4 and control valve 2-1-5 pipeline successively; Described source of the gas distributes cabinet to be connected and composed successively by filter 2-2-1, hand-operated valve 2-2-2, control valve 2-2-3, bus-bar 2-2-4, Pressure gauge 2-2-5, hand-operated valve 2-2-6 and control valve 2-2-7; Described terminal switch board is connected and composed successively by filter 2-3-1, hand-operated valve 2-3-2, Pressure gauge 2-3-3, control valve 2-3-4 and non-return valve 2-3-5, and the terminal switch board is connected with the ignition smooth combustion spout.
As shown in Figure 2, a kind of oxygen-enriched igniting and firing stabilizer without oil of the present invention, by contiguous the going up or the smooth-combustion back-flow region oxygen rich air spout 4 of lower floor's coal dust spout of ignition smooth combustion spout 1, ignition smooth combustion spout, and connecting control piper 2 formations, the ignition smooth combustion spout is connected with source of oxygen 3 by control piper with smooth-combustion back-flow region oxygen rich air spout.Described source of oxygen can go out oxygen for bottled industrial oxygen or air-separating oxygen-making machine.
Shown in Fig. 3-1,3-2,3-3,3-4,3-5, ignition smooth combustion spout outlet side outward appearance of the present invention is circle or rectangle, comprise wind inlet 1-1, a secondary wind inlet 1-2, oxygen rich air import 1-3, the ignition smooth combustion spout comprises five layers of housing, separate by dividing plate 1-4 between the housing, reach wind passage 1-7, center ring secondary air channel 1-8, center ring wind passage 1-9 and center oxygen rich air passage 1-10 next time from constituting secondary air channel 1-5, last wind passage 1-6 outside to inside; Secondary air channel, center ring secondary air channel and secondary wind inlet communicate, and connect the secondary air channel road; Last wind passage and next time wind passage, wind passage of center ring and a wind inlet communicate, and connect air pipe line one time; Center oxygen rich air passage and oxygen rich air import communicate, and are connected with source of oxygen by control piper; Secondary air channel, last wind passage and next time wind passage, center ring secondary air channel be provided with uniform flow orifice plate 1-11, last wind passage and next time the dividing plate between the wind passage be that camber line inwardly shrinks at the ignition smooth combustion spout port of export.
The entrance point of the center oxygen rich air passage of ignition smooth combustion spout of the present invention, the entrance point of a wind passage of center ring all are equipped with at least two heating element heater 1-12, the heating element heater of the entrance point of the center oxygen rich air passage of ignition smooth combustion spout, the adjacent arrangement of heating element heater with the entrance point of a wind passage of center ring, heating element heater and power supply or frequency converter are electrically connected, each heating element heater can switch to another power supply or frequency converter from a power supply or frequency converter, and each power supply or frequency converter can switch to another heating element heater from a heating element heater.The ature of coal situation be can look, heating power, heating curve dynamically adjusted.
Heating element heater of the present invention can be ceramic heat rod or intense radiation heating tube or high frequency low-temperature plasma heating tube or heating using microwave pipe.
Shown in Fig. 4-1, Fig. 4-2, the smooth-combustion back-flow region oxygen rich air spout last or lower floor's coal dust spout that ignition smooth combustion spout of the present invention is close to is coal dust reamer enclosed cavity 4-1, described coal dust reamer enclosed cavity front end is to burner hearth direction perforate 4-2, below the reamer or above oxygen rich air import 4-3, be connected with source of oxygen 3 by control piper 2.Perhaps, the coal dust spout does not have reamer, and described smooth-combustion back-flow region oxygen rich air spout is the orifice plate sealing mouth of pipe that is equivalent to the reamer position, and the described orifice plate sealing mouth of pipe is connected with source of oxygen by control piper.
Smooth-combustion back-flow region oxygen rich air spout entrance point of the present invention, at least two heating element heater 4-4 are housed, heating element heater and power supply or frequency converter are electrically connected, each heating element heater can switch to another power supply or frequency converter from a power supply or frequency converter, and each power supply or frequency converter can switch to another heating element heater from a heating element heater.
Heating element heater of the present invention is ceramic heat rod or intense radiation heating tube or high frequency low-temperature plasma heating tube or heating using microwave pipe.
As shown in Figure 6,1#, N# represent respectively certain station boiler, industrial furnace 1, N ignition smooth combustion point, source of oxygen 3 can be selected the air-separating oxygen-making machine.Control piper of the present invention by source of the gas switch board 2-1, source of the gas distribute cabinet 2-2 and terminal switch board 2-3 successively pipeline connect and compose, described source of the gas switch board is connected and composed by filter 2-1-1, hand-operated valve 2-1-2, voltage-stablizer or proportional control valve 2-1-3, pressure transmitter and Pressure gauge 2-1-4, control valve 2-1-5 pipeline successively; Described source of the gas distributes cabinet to be connected and composed by filter 2-2-1, hand-operated valve 2-2-2, control valve 2-2-3, bus-bar 2-2-4, Pressure gauge 2-2-5, hand-operated valve 2-2-6, control valve 2-2-7 pipeline successively; Described terminal switch board is connected and composed successively by filter 2-3-1, hand-operated valve 2-3-2, Pressure gauge 2-3-3, hand-operated valve 2-3-4, control valve 2-3-5, non-return valve 2-3-6, and last or lower floor's coal dust spout spray oxygen that terminal switch board and ignition smooth combustion point 1, ignition smooth combustion point are close to surely fires mouthful 4 pipelines and is connected.
The present invention is not limited to above-mentioned preferred forms, and other any identical with the present invention or akin products that anyone draws under enlightenment of the present invention all drop within protection scope of the present invention.
Claims (9)
1. oxygen-enriched igniting and firing stabilizer without oil, constitute by ignition smooth combustion spout and control piper, it is characterized in that: it also is provided with the smooth-combustion back-flow region oxygen rich air spout of going up of ignition smooth combustion spout vicinity or lower floor's coal dust spout, and the ignition smooth combustion spout is connected with source of oxygen by control piper with smooth-combustion back-flow region oxygen rich air spout.
2. oxygen-enriched igniting and firing stabilizer without oil as claimed in claim 1, it is characterized in that: described ignition smooth combustion spout outlet side outward appearance is circle or rectangle, comprise wind inlet, secondary wind inlet, oxygen rich air import, the ignition smooth combustion spout comprises five layers of housing, separated by dividing plate between the housing, oneself constitutes secondary air channel outside to inside, last wind passage reaches wind passage, center ring secondary air channel, wind passage of center ring and center oxygen rich air passage next time; Secondary air channel, center ring secondary air channel and secondary wind inlet communicate, and connect the secondary air channel road; Last wind passage and next time wind passage, wind passage of center ring and a wind inlet communicate, and connect air pipe line one time; Center oxygen rich air passage and oxygen rich air import communicate, and are connected with source of oxygen by control piper; Secondary air channel, last wind passage and next time wind passage, center ring secondary air channel be provided with the uniform flow orifice plate, last wind passage and next time the dividing plate between the wind passage be that camber line inwardly shrinks at the ignition smooth combustion spout port of export.
3. oxygen-enriched igniting and firing stabilizer without oil as claimed in claim 2, it is characterized in that: the entrance point of the center oxygen rich air passage of described ignition smooth combustion spout, the entrance point of a wind passage of center ring all is equipped with at least two heating element heaters, the heating element heater of the entrance point of the center oxygen rich air passage of ignition smooth combustion spout, the adjacent arrangement of heating element heater with the entrance point of a wind passage of center ring, heating element heater and power supply or frequency converter are electrically connected, each heating element heater can switch to another power supply or frequency converter from a power supply or frequency converter, and each power supply or frequency converter can switch to another heating element heater from a heating element heater.
4. oxygen-enriched igniting and firing stabilizer without oil as claimed in claim 1, it is characterized in that: described smooth-combustion back-flow region oxygen rich air spout is a coal dust reamer enclosed cavity, described coal dust reamer enclosed cavity front end is to the perforate of burner hearth direction, below the reamer or above be connected with source of oxygen by control piper; Perhaps, the coal dust spout does not have reamer, and described smooth-combustion back-flow region oxygen rich air spout is the orifice plate sealing mouth of pipe that is equivalent to the reamer position, and the described orifice plate sealing mouth of pipe is connected with source of oxygen by control piper.
5. oxygen-enriched igniting and firing stabilizer without oil as claimed in claim 4, it is characterized in that: smooth-combustion back-flow region oxygen rich air spout entrance point, at least two heating element heaters are housed, heating element heater and power supply or frequency converter are electrically connected, each heating element heater can switch to another power supply or frequency converter from a power supply or frequency converter, and each power supply or frequency converter can switch to another heating element heater from a heating element heater.
6. as claim 3 or 5 described oxygen-enriched igniting and firing stabilizer without oil, it is characterized in that: described heating element heater is ceramic heat rod or intense radiation heating tube or high frequency low-temperature plasma heating tube or heating using microwave pipe.
7. oxygen-enriched igniting and firing stabilizer without oil as claimed in claim 1, it is characterized in that: described control piper distributes cabinet and terminal switch board to connect and compose successively by source of the gas switch board, source of the gas, and described source of the gas switch board is connected and composed by filter, hand-operated valve, voltage-stablizer or proportional control valve, Pressure gauge, pressure transmitter, control valve pipeline successively; Described source of the gas distributes cabinet to be connected and composed by filter, hand-operated valve, control valve, bus-bar, Pressure gauge, hand-operated valve, control valve pipeline successively; Described terminal switch board is connected and composed successively by filter, hand-operated valve, Pressure gauge, control valve, non-return valve, or connects and composes with 2 branch lines that are in turn connected to form by hand-operated valve, control valve, non-return valve after being connected successively by filter, hand-operated valve, Pressure gauge again.
8. as claim 1-5,7 arbitrary described oxygen-enriched igniting and firing stabilizer without oil, it is characterized in that: described source of oxygen is that bottled industrial oxygen or air-separating oxygen-making machine go out oxygen.
9. oxygen-enriched igniting and firing stabilizer without oil as claimed in claim 6 is characterized in that: described source of oxygen is that bottled industrial oxygen or air-separating oxygen-making machine go out oxygen.
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| CN101799172A (en) * | 2010-03-02 | 2010-08-11 | 哈尔滨工业大学 | High-temperature oxygen-rich coal dust grading ignition device |
| CN101839478B (en) * | 2010-06-13 | 2011-07-13 | 山西蓝天环保设备有限公司 | Pulverized coal industrial boiler oil-free coal gas ignition and stable combustion method and device |
| CN112902223B (en) * | 2021-04-19 | 2023-07-07 | 吉林聚能网控科技有限公司 | Special heating core for orifice plate turbulent flow type oilless pulverized coal igniter |
| CN112902224B (en) * | 2021-04-19 | 2023-07-07 | 吉林聚能网控科技有限公司 | Two-stage orifice plate turbulent flow type oil-free pulverized coal igniter |
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| US5724901A (en) * | 1995-11-02 | 1998-03-10 | Gaz Metropolitan And Company Limited | Oxygen-enriched gas burner for incinerating waste materials |
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| CN1228520A (en) * | 1997-12-02 | 1999-09-15 | 液体空气乔治洛德方法利用和研究有限公司 | Oxy-fuel burner |
| CN2366695Y (en) * | 1998-12-30 | 2000-03-01 | 宝山钢铁(集团)公司 | Burner with high rich oxygen air |
| CN2665548Y (en) * | 2003-10-20 | 2004-12-22 | 黄继祥 | Non-oil igniting device using plasma igniting boiler coal powder |
-
2006
- 2006-03-24 CN CNB2006100654379A patent/CN100416165C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2108851U (en) * | 1991-07-01 | 1992-07-01 | 王哲斌 | Oxygen-rich burner |
| US5724901A (en) * | 1995-11-02 | 1998-03-10 | Gaz Metropolitan And Company Limited | Oxygen-enriched gas burner for incinerating waste materials |
| JPH10169929A (en) * | 1996-12-05 | 1998-06-26 | Tokyo Gas Co Ltd | Oxygen enriched combustion burner |
| CN1228520A (en) * | 1997-12-02 | 1999-09-15 | 液体空气乔治洛德方法利用和研究有限公司 | Oxy-fuel burner |
| CN2366695Y (en) * | 1998-12-30 | 2000-03-01 | 宝山钢铁(集团)公司 | Burner with high rich oxygen air |
| CN2665548Y (en) * | 2003-10-20 | 2004-12-22 | 黄继祥 | Non-oil igniting device using plasma igniting boiler coal powder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1818476A (en) | 2006-08-16 |
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