CN102261649A - Temperature-gathering type combustion furnace self-preheating oxygen enriched burner with oxygen enriched nozzle - Google Patents
Temperature-gathering type combustion furnace self-preheating oxygen enriched burner with oxygen enriched nozzle Download PDFInfo
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- CN102261649A CN102261649A CN2010105150933A CN201010515093A CN102261649A CN 102261649 A CN102261649 A CN 102261649A CN 2010105150933 A CN2010105150933 A CN 2010105150933A CN 201010515093 A CN201010515093 A CN 201010515093A CN 102261649 A CN102261649 A CN 102261649A
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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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
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Abstract
A temperature-gathering type combustion furnace self-preheating oxygen enriched burner with an oxygen enriched nozzle comprises a burner for burning gaseous or/and liquid fuels, tubular oxygen enriched preheaters arranged to surround the burner in the combustion furnace, and small-spread angle oxygen enriched nozzles which are connected to the tubular oxygen enriched preheaters and symmetrically distributed at the periphery of the burner as a whole. A combustion-supporting air duct in the burner is gradually narrowed from the middle portion thereof to the air outlet thereof, and a plurality of rotating-stream trays are mounted inside the narrowed region, wherein the rotating-stream trays are capable of enabling combustion-supporting air coming from the burner to enter a jet fuel stream in the form of a rotating stream with an angel ranging from 10 to 45 degrees; a fuel nozzle jets a fuel stream with a small spread angle which is combusted with poor oxygen on the front end face of the burner; and then the oxygen enriched nozzles in the furnace supply the jet flow of the oxygen enriched air to the combustion flame for oxygen enriched combustion supporting, thus improving the thermal radiation efficiency.
Description
Technical field
The combustion furnace that the present invention relates to temperature-gathered band oxygen enrichment nozzle is from the preheating oxygen-enriched burner, is applicable to various Industrial Boilers, heating furnace, kiln, smelting furnace, incinerator of all fuel-firing gas-firings etc., belongs to synthetic energy-saving discharge-reducing technical field and combustion science technical field.
Background technology
Along with the development of industry and agriculture deep processing industry, it is more and more worse that our existence living environment becomes, and therefore, low-carbon economy, low-carbon (LC) living pressure become increasing; The various Industrial Boilers of modern industry, heating furnace, kiln, smelting furnace, incinerator etc. are the maximum releasers of emission such as discharging carbon dioxide etc., so the discharging that reduces in the industrial production is the key that realizes low-carbon economy, protection human survival living environment; Present local oxygen-enriched oxygen enriching burning-aid energy-conserving and emission-cutting technology more and more becomes the favourite of energy-saving and emission-reduction in the industrial production, and the great advantage of oxygen-enriched combustion-supporting energy-conserving and emission-cutting technology is that not only effects of energy saving and emission reduction is good, and he transforms the high-new integrated technology that minimum (having only the oxygen enrichment nozzle to contact with body of heater with the oxygen enrichment preheater), operating parameter constant substantially (combustion air volume is turned down) also can return to former stove state at any time to body of heater simultaneously; But on the flame of existing burner combustion, implement local oxygen-enriched oxygenation jet combustion supporting, it is necessarily unfavorable that the maximum temperature that improves combustion flame is had, because general its efficiency of combustion of burner can both reach more than 80% now, that have even meet or exceed 90%, for the combustion furnace of this higher thermal efficient, the thermal efficiency best bet that realize improving it is exactly that the combustion flame temperature of trying every possible means to improve it improves radiation efficiency.It is at present domestic that to have only uncle minister in ancient times Wei " combustion furnace by oxygen-rich partial oxygen-enriched jet flow combustion supporting improves the method and the device (201010115450.7) thereof of the thermal efficiency " be that the flame temperature of utilizing oxygen enrichment to improve combustion furnace improves radiation efficiency, thereby realize the patent of the thermal efficiency of raising combustion furnace, but this method meets or exceeds 90% combustion furnace for the thermal efficiency, the amount that combustion flame temperature improves is less, and that have even little do not have practical significance to implementing oxygen-enriched combustion-supporting.In addition, it all spreads general burner from the combustion air that burner enters, that is to say that the air channel in the burner is straight, that have or even become big gradually, therefore, the combustion air that enters from burner is unfavorable for combustion-supporting, although the burner that has is added with whirlwind sheet, it is combustion-supporting to make the combustion air that enters from burner enter into the combustion flame center preferably well.So how to improve higher thermal efficient combustion furnace combustion flame temperature and improve the combustion-supporting effect of the combustion air that enters from burner, be that the combustion furnace of higher thermal efficient is energy-conservation and improve furnace temperature and enlarge the key of combustion furnace production capacity.
Three notion noun explanations in this specification: normal oxygen burning---fuel burns in normal air, and the oxygen content of its combustion air is the normal air oxygen content; Oxygen-enriched combusting---fuel in the gas of overgauge air oxygen content, burn or with the gas of overgauge air oxygen content just oxygen rich gas send into the burning of combustion flame local oxygen enriching jet combustion supporting; Combustion with meagre oxygen---fuel burns in the gas that is lower than the normal air oxygen content or the burnt fuel flame zone forms burning under the anaerobic condition.
Summary of the invention
The purpose of this invention is to provide a kind of can in combustion furnace, carry preheater, can based on fuel characteristics designs such as characteristic, combustion position, chamber structure determine burner fuel nozzle and oxygen enrichment nozzle relative position and angle thereof, can by change the burner air channel and add that the forward spin flow plate make the certain inclination angle of burner combustion air band and flow with the fuel that 10 degree ~ miter angle eddy flows enter injection in the combustion furnace of combustion-supporting temperature-gathered band oxygen enrichment nozzle from the preheating oxygen-enriched burner.
The combustion furnace of temperature-gathered band oxygen enrichment nozzle is from the preheating oxygen-enriched burner, comprise that fuel oil or combustion of gaseous such as combustion gas or combusting coal water slurry are or/and the burner of liquid fuel, and be looped around the tubular preheater around the combustion furnace inner burner and be connected the little angle of flare oxygen enrichment nozzle that totally is symmetrically distributed in the burner periphery on the tubular preheater, diminish gradually to air outlet in the middle of the combustion-supporting air channel in the burner, and polylith eddy flow plate is housed in the interval inboard that diminishes, be that burner air outlet (burner front end face) is littler to the air inlet interval than middle, and in the middle of burner, polylith eddy flow plate is housed to the interval inboard of diminishing of air outlet, it is characterized in that:
1, diminishes gradually to air outlet in the middle of the combustion-supporting air channel in the burner, and polylith eddy flow plate is housed in the interval inboard that diminishes, diminish gradually and be with the combustion-supporting air channel of burner of eddy flow plate can make the combustion air that enters from the burner air channel, an inclination angle is arranged and enter in the fuel stream of injection combustion-supporting with 10 degree ~ miter angle eddy flows.
2, the fuel nozzle mouth of burner from the vertical range of burner (in the stove) front end face at 0 ~ 22CM, more common burner will be lacked, and adjustable fuel nozzle mouth is adjusted to from the nearer distance and position of burner front end face, make the combustion flame major part be exposed at outside the burner front end face, the oxygen rich gas that helps oxygen enrichment nozzle ejection in the stove enters the combustion flame assigned address; Thereby the normal oxygen combustion flame highest temperature zone that oxygen-enriched combusting peak flame temperature district that oxygen enrichment is entered form behind the combustion flame and former combustion flame form overlaps to form higher peak flame temperature district, and then forms the flame high-temperature region that can improve radiation efficiency to greatest extent of higher temperature.Because the key problem in technology of local oxygen enriching jet combustion supporting is exactly to make two highest temperature zone overlap to form the flame high-temperature region of higher temperature, it is the normal oxygen combustion flame high-temperature region that individual maximum temperature is arranged in the combustion flame before oxygen rich gas enters combustion flame, and oxygen rich gas enters the oxygen-enriched combusting flame high-temperature region that can form another maximum temperature behind the combustion flame in combustion flame, have only these two maximum temperature area overlappings could form the highest temperature zone of higher temperature, thereby improve the utilization rate of combustion heat radiation efficiency and heat to a greater extent, and then realize improving furnace temperature, enlarge purposes such as production load of combustion furnace and energy-saving and emission-reduction.
3, the fuel of burner fuel nozzle ejection of the present invention stream is more concentrated, angle of flare that the fuel that fuel nozzle sprays flows its burner oil stream of the more general burner of its injection angle of flare is little, thereby make in the fuel adfluxion dense, combustion centre's anoxycausis, reduce combustion air volume simultaneously, also make it not add anoxycausis under the oxygen enrichment state; Therefore, the normal oxygen fired state of its combustion flame when not adding oxygen-enriched combustion-supporting forms the flame combustion with meagre oxygen, the whole oxygen deprivation of its flame (anoxic) about 5% ~ 15%; And the incomplete rate of its flame zone fuel combustion is reached about 5% ~ 20%; Utilize little angle of flare oxygen enrichment nozzle to inject the oxygen enrichment efficient combustion-supporting for the combustion flame central jet in this state, thereby it is more that the flame zone temperature is improved, and then more help improving the utilization rate of combustion heat radiation efficiency and heat.Burner of the present invention only is applicable to oxygen-enriched combusting, because the fuel of general its injection of burner stream angle of flare is too little, can influences combustion air and enter the center of fuel stream and make the undue anoxic in fuel stream center, and then make fuel combustion more incomplete; But oxygen-enriched burner for the local oxygen enriching jet combustion supporting, burn in the fuel adfluxion, it is combustion-supporting to make oxygen enrichment enter fuel stream a part, burned flame center supplemental oxygen, make the more concentrated high oxygen combustion of fuel, thereby the ignition temperature that makes a part, combustion flame center is higher more concentrated, and then improves efficiency of combustion and combustion heat radiation efficiency.
4, form the method for burner combustion with meagre oxygen, can design the angle that each fuel sprays by fuel nozzle makes in the fuel adfluxion, form fuel and flow the center anoxic and combustion with meagre oxygen, also can make it form combustion with meagre oxygen by fuel metering supply pressure, liquid fuel atomization and burner intake.
5, resistant to elevated temperatures tubular preheater is installed in around the burner, and is attached to or partly is embedded in the burner heat-insulation layer all around, and the oxygen rich gas preheating is drawn the heat around the burner and do not influenced heat radiation distribution in combustion furnace thermal radiation effect and the combustion furnace.
6, the oxygen enrichment nozzle directly is welded on the tubular preheater, and by burner and flame totally be symmetrically distributed in burner around, it specifically calculates by conditions such as heat radiation distributions in burner fuel nozzle, combustion flame and structure in the stove and the stove and adds experience and determine: the quantity of oxygen enrichment nozzle and be welded in the position on the tubular preheater and the relative position and the angle of angle, oxygen enrichment nozzle and burner fuel nozzle in the stove.
7, in the connector of the interior tubular preheater of oxygen enrichment nozzle and stove, the oxygen enrichment blast tube has the angle of a back of the body towards airflow direction, stretch in the tubular preheater pipe, directly enter oxygen enrichment nozzle tube connector with the gas that flows in the oxygen enrichment economizer bank that is blocked in tubular preheater, and from the near more oxygen enrichment blast tube of tubular type oxygen enrichment preheater oxygen rich gas inlet, its angle part that stretches in the oxygen enrichment economizer bank of tubular type oxygen enrichment preheater is long more, thereby the oxygen rich gas of the oxygen enrichment nozzle flow warp that enters the mouth away from oxygen rich gas on the assurance tubular type oxygen enrichment preheater, it is close to enter the oxygen rich gas flow and the pressure of far and near different oxygen enrichment nozzle flow warps of tubular type oxygen enrichment preheater inlet from oxygen rich gas with other each, and can to regulate the flow through oxygen rich gas flow of each oxygen enrichment nozzle of realization by setting pressure table and control valve close because the oxygen enrichment nozzle of installing in the stove can not be the same with the outer oxygen enrichment nozzle of installing of stove.
8, test and facts have proved furnace bottom or the furnace wall heat-obtaining preheating oxygen rich gas thermal efficiency that not only can not reduce combustion furnace of oxygen enrichment around the burner, the temperature of the regional flame of combustion centre can be improved on the contrary significantly, thereby the radiation efficiency of burning can be improved significantly.
9, be that the spray angle of fuel nozzle makes less angle of flare fuel nozzle into the Fuel lance of ordinary burner, and with fuel nozzle to the burner hearth certain distance that moves forward, making combustion flame stretch out the fire pot major part is exposed on the burner front end face, add oxygen enrichment preheater and the oxygen enrichment nozzle system that is connected on the oxygen enrichment preheater, the combustion furnace that promptly is transformed into band oxygen enrichment nozzle is from the preheating oxygen-enriched burner.
10, oxygen enrichment preheater in the stove and oxygen enrichment nozzle are become supporting integral structure fully with burner design, help the efficient application and the standardization of local oxygen enriching jet combustion supporting technology; To be that the present invention can make the most complicated in the local oxygen enriching jet combustion supporting technology, most critical, the design application technology that needs most the oxygen enrichment nozzle of determining according to the concrete multifactor scene of combustion furnace are made standardization; That is to say utilize the present invention can be with the individual difference of complexity bigger and need strive the local oxygen enriching jet combustion supporting application integration technology that each combustion furnace is designed oxygen enrichment nozzle and installation site and angle separately and realize standardization, standardization, summary, popular, thereby be more suitable in its large-area applying.
If a plurality of compact burners of relatively concentrating are arranged in 11 combustion furnaces, then oxygen enrichment preheater in the stove can be designed to around a plurality of burner arrangement, the position of its oxygen enrichment nozzle can be according to conditions such as combustion flames, and design is in the overall on every side symmetrical distribution of a plurality of burners or according to the overall asymmetric distribution of combustion furnace inner structure condition.
12, oxygen enrichment preheater and oxygen enrichment nozzle system and oxygen-enriched burner are relatively independent, and can change separately.
The present invention compared with prior art has the following advantages:
1. diminish gradually to air outlet in the middle of the combustion-supporting air channel in the burner, and polylith eddy flow plate is housed in the interval inboard that diminishes, diminish gradually and be with the combustion-supporting air channel of burner of eddy flow plate can make the combustion air that enters from the burner air channel, an inclination angle is arranged and enter in the fuel stream of injection combustion-supporting with 10 degree ~ miter angle eddy flows.
2. the oxygen enrichment preheater is placed on around the burner in the stove, and directly is connected, more convenient, simple, safety are installed with the oxygen enrichment nozzle.
3. burner design is become the combustion with meagre oxygen state, the temperature of combustion flame central area can be improved when helping local oxygen-enriched oxygenation jet combustion supporting more, the utilization rate that is more conducive to improve the radiation efficiency of burning and improves heat.
4. ratio is less relatively because the heat that the oxygen enrichment preheating is absorbed accounts for the burning liberated heat, and do not change the heat radiation environment in the combustion furnace again, so oxygen enrichment preheater in the stove of mounting strap oxygen enrichment nozzle can reduce the cost and the complex installation work of oxygen enrichment preheater widely.
5. oxygen enrichment preheater in the stove and oxygen enrichment nozzle are become supporting integrative-structure fully with burner design, help the efficient application and the standardization of local oxygen enriching jet combustion supporting technology; Be the present invention can with the most complicated in the local oxygen enriching jet combustion supporting technology, most critical, individual difference bigger and need strive the local oxygen enriching jet combustion supporting application integration technology that each combustion furnace is designed oxygen enrichment nozzle and installation site and angle separately and realize standardization, standardization, summary, popular.Be more suitable for extensively using in its large-area expansion.
6. the Fuel lance that is easy to ordinary burner is that fuel nozzle makes little angle of flare fuel nozzle into, and with fuel nozzle to the burner hearth certain distance that moves forward, make combustion flame stretch out fire pot and major part is exposed at outside the burner front end face, add oxygen enrichment preheater and the oxygen enrichment nozzle system that is connected on the oxygen enrichment preheater, the combustion furnace that promptly is transformed into band oxygen enrichment nozzle is from the preheating oxygen-enriched burner.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is a middle A-A generalized section embodiment illustrated in fig. 1;
Fig. 3 is that middle oxygen enrichment blast tube angle embodiment illustrated in fig. 1 stretches into part-structure schematic diagram in the economizer bank dorsad;
Fig. 4 is the structural representation of middle eddy flow plate embodiment illustrated in fig. 1.
Among the figure: 1, oxygen enrichment economizer bank 2, oxygen enrichment blast tube 3, oxygen rich gas inlet 4, fuel nozzle 5, fuel nozzle mouth 6, burner 7, oxygen enrichment nozzle 8, burner front end face 9, oxygen enrichment blast tube stretch into economizer bank interior angle part 10, oxygen enrichment blast tube dorsad and stretch into air outlet 13, the eddy flow plate that angle part 11, oxygen rich gas flow path direction 12, burner in the economizer bank diminish dorsad
The specific embodiment
In the embodiment shown in Fig. 1-4: diminish gradually to air outlet 12 in the middle of the combustion-supporting air channel in the burner 6, and polylith eddy flow plate 13 is housed in the interval inboard that diminishes, diminish gradually and be with the burner 6 combustion-supporting air channels of eddy flow plate 13 can make the combustion air that enters from burner 6 air channels, an inclination angle is arranged and enter in the fuel stream of injection combustion-supporting with 10 degree ~ miter angle eddy flows; In the stove oxygen enrichment economizer bank 1 be looped around combustion furnace inner burner 6 around, be attached to or partly be embedded in burner 6 heat-insulation layer all around, be welded with the oxygen enrichment blast tube 2 of two or several and burner 6 symmetrical distributions in the stove on the oxygen enrichment economizer bank 1, oxygen enrichment nozzle 7 is connected on the oxygen enrichment blast tube 2, the spout of oxygen enrichment nozzle 7 is facing to the axis of burner 6, and the angle that becomes 10 degree ~ 90 to spend with burner 6 axis, make oxygen enrichment nozzle 7 oxygen rich gas is sent to the zone of combustion flame appointment; Oxygen enrichment blast tube 2 stretches into the angle part 9 and 10 in the oxygen enrichment economizer bank 1, angle is oxygen rich gas flow path direction 11 dorsad, and from the oxygen rich gas 3 nearer angle parts 9 that stretch in the oxygen enrichment economizer bank 1 that enter the mouth, than long from the oxygen rich gas inlet 3 angle part 10 that stretches into oxygen enrichment economizer bank 1 in far away, thereby it is close to make flow through each oxygen enrichment nozzle 7 and injection send into the regional oxygen rich gas flow of combustion flame.The installation of oxygen enrichment economizer bank 1 and the Installation and Debugging of burner each several part it should be noted that in the combustion furnace of band oxygen enrichment nozzle 7: at first oxygen enrichment nozzle 7 must be symmetrically distributed with burner 6, its less important distance of outside stove, regulating fuel nozzle mouth 5 with the burner front end face 8 of fuel nozzle 4 in the burner 6, to guarantee that the combustion flame overwhelming majority is exposed at burning outside the burner front end face 8, thereby the oxygen rich gas that oxygen enrichment nozzle 7 is sprayed accurately enters into the combustion flame zone, realizes that the local oxygen enriching jet is efficiently concentrated combustion-supporting.
Claims (9)
1. the combustion furnace of temperature-gathered band oxygen enrichment nozzle is from the preheating oxygen-enriched burner, comprise that fuel oil or combustion of gaseous such as combustion gas or combusting coal water slurry are or/and the burner of liquid fuel (6), and be looped around combustion furnace inner burner (6) tubular preheater on every side and be connected the little angle of flare oxygen enrichment nozzle (7) that totally is symmetrically distributed in burner (6) periphery on the tubular preheater, diminish gradually to air outlet (12) in the middle of the combustion-supporting air channel in the burner (6), and polylith eddy flow plate (13) is housed in the interval inboard that diminishes, be that burner (6) air outlet (12) [burner front end face (8)] is littler to the air inlet interval than middle, and in the middle of burner (6), polylith eddy flow plate (13) is housed to the interval inboard that diminishes of air outlet (12), it is characterized in that: middle beginning diminishes gradually and be with the combustion-supporting air channel of burner (6) of eddy flow plate (13) can make the combustion air that enters from burner (6) air channel, an inclination angle is arranged and flow with the fuel that 10 degree ~ miter angle eddy flows enter injection in combustion-supporting.
2. the combustion furnace of temperature-gathered band oxygen enrichment nozzle as claimed in claim 1 is from the preheating oxygen-enriched burner, it is characterized in that: the fuel nozzle (4) of burner (6) mouthful from the vertical range of burner (in the stove) front end face (8) at 0 ~ 22CM, more common burner will be lacked, and adjustable fuel nozzle (4) mouthful is adjusted to from the nearer distance and position of burner front end face (8), make the combustion flame major part be exposed at outside the burner front end face (8), help the oxygen rich gas that oxygen enrichment nozzle (7) sprays in the stove and enter the combustion flame assigned address; Thereby the normal oxygen combustion flame highest temperature zone that oxygen-enriched combusting peak flame temperature district that oxygen enrichment is entered form behind the combustion flame and former combustion flame form overlaps to form higher peak flame temperature district, and then the flame high-temperature region that can improve radiation efficiency to greatest extent of formation higher temperature, because the key problem in technology of local oxygen enriching jet combustion supporting is exactly to make two highest temperature zone overlap to form the flame high-temperature region of higher temperature.
3. the combustion furnace of temperature-gathered band oxygen enrichment nozzle as claimed in claim 1 is from the preheating oxygen-enriched burner, it is characterized in that: the fuel stream that fuel nozzle (4) sprays in the burner (6) is more concentrated, angle of flare that the fuel that fuel nozzle (4) sprays flows its burner oil stream of the more general burner of its injection angle of flare is little, thereby make in the fuel adfluxion dense, combustion centre's anoxycausis, reduce combustion air volume simultaneously, also make it not add anoxycausis under the oxygen enrichment state; Therefore, the normal oxygen fired state of its combustion flame when not adding oxygen-enriched combustion-supporting forms the flame combustion with meagre oxygen, the whole oxygen deprivation of its flame (anoxic) about 5% ~ 15%; And the incomplete rate of its flame zone fuel combustion is reached about 5% ~ 20%; Utilize little angle of flare oxygen enrichment nozzle (7) to inject the oxygen enrichment efficient combustion-supporting for the combustion flame central jet in this state, thereby it is more that the flame zone temperature is improved, and then more help improving the utilization rate of combustion heat radiation efficiency and heat.
4. the combustion furnace of temperature-gathered band oxygen enrichment nozzle as claimed in claim 1 is from the preheating oxygen-enriched burner, it is characterized in that: oxygen enrichment nozzle (7) directly is welded on the tubular preheater, and by burner (6) and flame totally be symmetrically distributed in burner (6) around, it specifically presses fuel nozzle (4) in the burner (6), condition such as heat radiation distribution is calculated and is added experience and determine in combustion flame and structure in the stove and the stove: the quantity of oxygen enrichment nozzle (7) and be welded in position and the angle on the tubular preheater in the stove, the relative position and the angle of fuel nozzle (4) in oxygen enrichment nozzle (7) and the burner (6).
5. the combustion furnace of temperature-gathered band oxygen enrichment nozzle as claimed in claim 3 is from the preheating oxygen-enriched burner, it is characterized in that: in the connector of the interior tubular preheater of oxygen enrichment nozzle (7) and stove, oxygen enrichment blast tube (2) has the angle (9 of a back of the body towards airflow direction, 10), stretch in the oxygen enrichment economizer bank (1) of tubular preheater, directly enter oxygen enrichment nozzle (7) tube connector with the gas that flows in the oxygen enrichment economizer bank (1) that is blocked in tubular preheater, and from the near more oxygen enrichment blast tube (2) of tubular type oxygen enrichment preheater oxygen rich gas inlet, its angle part that stretches in the oxygen enrichment economizer bank (1) of tubular type oxygen enrichment preheater is long more, thereby the oxygen rich gas of flowing through away from the oxygen enrichment nozzle (7) of oxygen rich gas inlet on the assurance tubular type oxygen enrichment preheater, it is close to enter oxygen rich gas flow and pressure that the far and near different oxygen enrichment nozzle (7) of tubular type oxygen enrichment preheater inlet flows through from oxygen rich gas with other each, and can to regulate the flow through oxygen rich gas flow of each oxygen enrichment nozzle (7) of realization by setting pressure table and control valve close because the oxygen enrichment nozzle of installing in the stove (7) can not be the same with the outer oxygen enrichment nozzle of installing of stove.
6. the combustion furnace of temperature-gathered band oxygen enrichment nozzle as claimed in claim 3 is from the preheating oxygen-enriched burner, it is characterized in that: resistant to elevated temperatures tubular preheater is installed in burner (6) on every side, and be attached to or partly be embedded in burner (6) heat-insulation layer all around, the oxygen rich gas preheating draw burner (6) all around heat and do not influence that heat radiation distributes in combustion furnace thermal radiation effect and the combustion furnace.
7. the combustion furnace of temperature-gathered band oxygen enrichment nozzle as claimed in claim 1 is from the preheating oxygen-enriched burner, it is characterized in that: test and facts have proved furnace bottom or the furnace wall heat-obtaining preheating oxygen rich gas thermal efficiency that not only can not reduce combustion furnace of oxygen enrichment around the burner, the temperature of the regional flame of combustion centre can be improved on the contrary significantly, thereby the radiation efficiency of burning can be improved significantly.
As the combustion furnace of claim 1,2 described temperature-gathered band oxygen enrichment nozzles from the preheating oxygen-enriched burner, it is characterized in that: with the Fuel lance of ordinary burner is that the spray angle of fuel nozzle makes less angle of flare fuel injection stream into, and with fuel nozzle (4) to burner hearth reach certain distance, make combustion flame stretch out fire pot and major part is exposed at outside the burner front end face (8), add oxygen enrichment preheater and oxygen enrichment nozzle (7) system that is connected on the oxygen enrichment preheater, the combustion furnace that promptly is transformed into band oxygen enrichment nozzle (7) is from the preheating oxygen-enriched burner.
9. the combustion furnace of temperature-gathered band oxygen enrichment nozzle as claimed in claim 1 is from the preheating oxygen-enriched burner, it is characterized in that: oxygen enrichment preheater in the stove and oxygen enrichment nozzle (7) are designed to supporting integral structure fully with burner (6), help the efficient application and the standardization of local oxygen enriching jet combustion supporting technology; To be that the present invention can make the most complicated in the local oxygen enriching jet combustion supporting technology, most critical, the design application technology that needs most the oxygen enrichment nozzle of determining according to the concrete multifactor scene of combustion furnace (7) are made standardization; That is to say utilize the present invention can be with the individual difference of complexity bigger and need strive the local oxygen enriching jet combustion supporting application integration technology that each combustion furnace is designed oxygen enrichment nozzle (7) and installation site and angle separately and realize standardization, standardization, summary, popular, thereby be more suitable in its large-area applying.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103712231A (en) * | 2013-12-21 | 2014-04-09 | 华中科技大学 | External oxygen injection device for coal-fired power generation oxygen-enriched combustion |
| CN104165521A (en) * | 2014-09-09 | 2014-11-26 | 苏州新协力环保科技有限公司 | Biomass smelting furnace burner |
| CN104315534A (en) * | 2014-09-29 | 2015-01-28 | 华中科技大学 | Oxygen injector used for oxygen-enriched combustion |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB176929A (en) * | 1921-01-04 | 1922-03-23 | Champion Kerosene Burner Co | Improvements in kerosene burning apparatus |
| GB659286A (en) * | 1949-04-04 | 1951-10-17 | Kenderi Tibor | Improvements in vaporizing burners of the nozzle type for liquid fuels |
| JP2001263608A (en) * | 2000-03-22 | 2001-09-26 | Nippon Sanso Corp | Burner for oxygen-enriched liquid fuel |
| CN2492560Y (en) * | 2001-05-21 | 2002-05-22 | 于志贤 | Energy-saving gas producer |
| CN1916493A (en) * | 2006-09-06 | 2007-02-21 | 中国船舶重工集团公司第七一一研究所 | Combustion nozzle of gasification stove of using pressed dry coal powder |
| CN101520178A (en) * | 2009-04-07 | 2009-09-02 | 湖南吉祥石化科技股份有限公司 | High-tenacity mixing low pollution combustor discharging acid gas |
| CN201355039Y (en) * | 2009-02-27 | 2009-12-02 | 西安建筑科技大学 | Burner for thermal low temperature dry distillation in coal |
| CN101603682A (en) * | 2008-06-11 | 2009-12-16 | 中外炉工业株式会社 | The combustion method of burner and high-speed flow-jet diffusion combustion type combustion nozzle |
| CN101799172A (en) * | 2010-03-02 | 2010-08-11 | 哈尔滨工业大学 | High-temperature oxygen-rich coal dust grading ignition device |
-
2010
- 2010-10-22 CN CN2010105150933A patent/CN102261649A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB176929A (en) * | 1921-01-04 | 1922-03-23 | Champion Kerosene Burner Co | Improvements in kerosene burning apparatus |
| GB659286A (en) * | 1949-04-04 | 1951-10-17 | Kenderi Tibor | Improvements in vaporizing burners of the nozzle type for liquid fuels |
| JP2001263608A (en) * | 2000-03-22 | 2001-09-26 | Nippon Sanso Corp | Burner for oxygen-enriched liquid fuel |
| CN2492560Y (en) * | 2001-05-21 | 2002-05-22 | 于志贤 | Energy-saving gas producer |
| CN1916493A (en) * | 2006-09-06 | 2007-02-21 | 中国船舶重工集团公司第七一一研究所 | Combustion nozzle of gasification stove of using pressed dry coal powder |
| CN101603682A (en) * | 2008-06-11 | 2009-12-16 | 中外炉工业株式会社 | The combustion method of burner and high-speed flow-jet diffusion combustion type combustion nozzle |
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