CN105444171A - Top-combustion-adjustable cyclone type high-speed combusting device - Google Patents
Top-combustion-adjustable cyclone type high-speed combusting device Download PDFInfo
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- CN105444171A CN105444171A CN201510911535.9A CN201510911535A CN105444171A CN 105444171 A CN105444171 A CN 105444171A CN 201510911535 A CN201510911535 A CN 201510911535A CN 105444171 A CN105444171 A CN 105444171A
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- 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
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- 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
- F23D14/46—Details, e.g. noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/14—Special features of gas burners
- F23D2900/14005—Rotary gas burner
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention relates to a top-combustion-adjustable cyclone type high-speed combusting device which is capable of effectively solving the problems of non-uniform mixing of gas and combustion-supporting air, non-uniform classification of gas flow, unreasonable and non-uniform distribution of gas flow field, unstable combustion temperature, low intensity and low heat utilization rate. An inner chamber of a wall body of the combusting device acts as a pre-combustion chamber; a gas distributing ring-shaped passage and an air distributing ring-shaped passage in the wall body are communicated with a gas charging pipe and an air charging pipe respectively; the upper part of the gas distributing ring-shaped passage is provided with an upper gas nozzle, and the lower part of the gas distributing ring-shaped passage is provided with a lower gas nozzle; an annular passage is arranged between a retaining wall and the wall body of an annular air nozzle inside the pre-combustion chamber; the air distributing ring-shaped passage is provided with an air nozzle; the upper end of an air flow dividing pipe on the air charging pipe is communicated with a top air nozzle in the top of the wall body; a helical supporting part is arranged between oxygen-rich or high-energy gas inlet pipes inside the air flow dividing pipe; a combusting device outlet is formed in the lower part of the retaining wall of the annular air nozzle. The combusting device disclosed by the invention has good effects of saving fuels, lowering the investment, reducing the emission load of harmful gases and reducing environmental pollution.
Description
Technical field
The present invention relates to the burner of the heat utilization equipment of industrial furnace class, particularly a kind of eddy flow high-velocity combustion device regulated with top combustion.
Background technology
Current, industrial furnace from energy-saving and cost-reducing consider to require burning different fuel from obtain under different coal gas high temperature, samming, current-sharing performance and structure stablize, finally to reach efficiently, energy-saving and environmental protection, volume increase object.For this reason, in industrial furnace, burner is except must realizing the combustion process of optimization, also should have burning adjusting function, as burn various coal gas time, need to obtain high ignition temperature, or ignition temperature should have certain stability, and keep rated load constant when adapting to different cultivars fuel.In addition, in environmental protection to SO in combustion gas
2also require that burner has feature and the performance of fractional combustion and controlled temperature combustion with the control of NOx.This just relates to the structure of the uniqueness of related burner and the change with respective combustion chamber structure, and mutual reasonable disposition with effectively controls, thus produce conform with correspondence requirement technique effect.At present, the problem on Structure and Properties using conventional burners to bring emerges in an endless stream.These problems are mainly manifested in, because burner design with select the unreasonable and coal gas (or oily vapour or coal dust) that causes and mix uneven between air and flame holding is poor, cause combustion instability and imperfect stability to burn; Unsuitable burner and coordinating between the bags, there is the uncertain and skewness of air velocity distribution feature in combustion chamber, even cause combustion intensity low and can not the problems such as designing requirement be reached.Such burner and the combustion chamber coordinated with it, even if at employing oxygen-enriched combustion-supporting or employing high heating value gas afterburning, be also difficult to reach desirable combustion efficiency and stable ignition temperature.Certainly, the realization of the combustion process of optimization, its crucial or burner design with rationally apply.Therefore, according to the actual needs of combustion process design there is kinds of gas adaptive capacity, have larger property regulation scope, burner that ignition temperature is stable, make it coordinate combustion chamber or with energy space, producing good flow field structure and combustion efficiency, is the current problem that urgently will solve.
Summary of the invention
For adapting to the current situation of the burner of multifuel firing or oxygen-enriched combustion-supporting, the present invention proposes a kind of eddy flow high-velocity combustion device regulated with top combustion, effectively can solve coal gas (or high heating value supplements coal gas), combustion air (or oxygen-enriched air or pure oxygen) mixing is uneven, the irrational distribution of uneven, the air velocity distribution of the classification (or non-graded) of air-flow, uneven, ignition temperature is unstable, the problem that combustion intensity is low and heat utilization efficiency is low.
The technical scheme that the present invention solves is, the present invention includes burner body of wall, precombustion chamber, gas inlet pipe, gas allocation circuit, gas port, air intake duct, air distributes circuit, air port, burner exports, burner body of wall is that the spherical top on top and the cylinder of bottom connect to form, the inner chamber of burner body of wall is precombustion chamber, gas allocation circuit and air distribution circuit is from up to down provided with in the wall of cylinder, the outside ringwall that gas allocation circuit distributes circuit with air is communicated with air intake duct with gas inlet pipe respectively, gas inlet pipe and air intake duct horizontal vertical or horizontal tilt are in cylinder, the upper and lower of the inner side ringwall of gas allocation circuit respectively circumference is evenly arranged multiple horizontal tilt in the upper gas port of radial direction and lower gas port, upper gas port is communicated with precombustion chamber with the end of lower gas port, in precombustion chamber, annular air spout barricade is coaxially equipped with in bottom, the circular passage of opened upper end is had between the top of annular air spout barricade and burner body of wall, circular passage is communicated with precombustion chamber, on the inner side ringwall of air distribution circuit, circumference is evenly arranged multiple horizontal tilt in the air port of radial direction, the connection circular passage, end of air port, and towards annular air spout barricade, the flow direction of combustion air is guided by the circular passage formed between this barricade and precombustion chamber interior wall, air intake duct is vertically equipped with air shunt tube, the headspace spout of the top center of the backward lower connection spherical top of upper end horizontal buckling of air shunt tube, headspace spout is communicated with precombustion chamber straight down, in the vertical linkage section that air shunt tube is communicated with headspace spout downwards, oxygen enrichment or high-energy fuel gas inlet tube are coaxially housed, air shunt tube is communicated with the spiral support having fixing oxygen enrichment or high-energy fuel gas inlet tube between the vertical linkage section of headspace spout and oxygen enrichment or high-energy fuel gas inlet tube downwards, air shunt tube is upwards vertically stretched out in the upper end of oxygen enrichment or high-energy fuel gas inlet tube, the lower end of oxygen enrichment or high-energy fuel gas inlet tube is communicated with headspace spout downwards, the inner chamber of annular air spout barricade is burner aditus laryngis, burner aditus laryngis bottom is the outlet of trumpet-shaped burner.
The present invention is the mend gene done based on the structure of existing industrial furnace burner, at coal gas and air on the basic burner structure basis of precombustion chamber inward eddy pre-mixing combustion, the pipeline of an air-spray and oxygen-enriched stream or high energy coal gas jet is set from burner precombustion chamber top, in order to change the mixed proportion between coal gas and air, improve its mixing rate and the uniformity mixed, and change coal gas and air composition separately, thus realize ignition temperature and the combustion intensity of adjusting burner, improve the stability of combustion process, and improve the adaptability of burner.Industrial furnace adopts the device of this oxygen-enriched combusting and high-energy fuel gas burning, can ensure that it is efficient under the prerequisite of safety and stablization operation, combustion temperatures, high-heat strength run, then reach the good result of fuel saving, investment reduction, reduction harmful gas emission, minimizing environmental pollution.
Accompanying drawing explanation
Fig. 1 is sectional front view of the present invention.
Fig. 2 is the A-A cross sectional view of Fig. 1 of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
As Figure 1-Figure 2, the present invention includes burner body of wall 1, precombustion chamber 2, gas inlet pipe 4, gas allocation circuit 4a, gas port, air intake duct 5, air distributes circuit 5a, air port 5b, burner outlet 8, burner body of wall 1 is that the spherical top on top and the cylinder of bottom connect to form, the inner chamber of burner body of wall 1 is precombustion chamber 2, gas allocation circuit 4a and air distribution circuit 5a is from up to down provided with in the wall of cylinder, the outside ringwall that gas allocation circuit distributes circuit with air is communicated with air intake duct 5 with gas inlet pipe 4 respectively, gas inlet pipe and air intake duct horizontal vertical or horizontal tilt are in cylinder, the upper and lower of the inner side ringwall of gas allocation circuit respectively circumference is evenly arranged multiple horizontal tilt in the upper gas port 4b of radial direction and lower gas port 4c, upper gas port 4b is communicated with precombustion chamber 2 with the end of lower gas port 4c, in precombustion chamber 2, annular air spout barricade 7 is coaxially equipped with in bottom, the circular passage of opened upper end is had between the top of annular air spout barricade and burner body of wall, circular passage is communicated with precombustion chamber, on the inner side ringwall of air distribution circuit 5a, circumference is evenly arranged multiple horizontal tilt in the air port 5b of radial direction, the connection circular passage, end of air port 5b, and towards annular air spout barricade, the flow direction of combustion air is guided by the circular passage formed between this barricade and precombustion chamber interior wall, air intake duct is vertically equipped with air shunt tube 6, the headspace spout 6a of the top center of the backward lower connection spherical top of upper end horizontal buckling of air shunt tube, headspace spout is communicated with precombustion chamber straight down, in the vertical linkage section that air shunt tube is communicated with headspace spout downwards, oxygen enrichment or high-energy fuel gas inlet tube 6b are coaxially housed, air shunt tube is communicated with the spiral support 6c having fixing oxygen enrichment or high-energy fuel gas inlet tube between the vertical linkage section of headspace spout and oxygen enrichment or high-energy fuel gas inlet tube downwards, air shunt tube is upwards vertically stretched out in the upper end of oxygen enrichment or high-energy fuel gas inlet tube, the lower end of oxygen enrichment or high-energy fuel gas inlet tube is communicated with headspace spout downwards, the inner chamber of annular air spout barricade is burner aditus laryngis 3, the bottom of burner aditus laryngis has trumpet-shaped burner to export 8.
The bell jar shape structure that described burner body of wall 1 is made for heat resisting steel, the inwall of burner body of wall 1 has the refractory masses of resistance to 800 DEG C ~ 1000 DEG C of high temperature.
Described upper gas port 4b and lower gas port 4c is the spout of square-section, and upper gas port 4b and lower gas port 4c is 1 ° ~ 60 ° with radial inclination angle.
Described air port 5b is the spout of square-section, is 1 ° ~ 60 ° with the inclination angle of radial direction.
Described annular air spout barricade (7) is cylinder, forms air-flow circuit between the breach of outer upper and precombustion chamber inwall, and the upper edge of annular air spout barricade extends towards lower gas port (4c) direction.
Described spiral support 6c is spiral helicine plate body.
During enforcement, coal gas enters gas allocation circuit 4a by gas inlet pipe 4, then enters precombustion chamber 2 by upper and lower gas port 4b and 4c in the mode of swirling eddy; Combustion air one road enters air from air intake duct 5 and distributes circuit 5a, then form swirling eddy via air port 5b and enter precombustion chamber 2, and another Lu Zecong air shunt tube 6 upwards enters headspace spout 6a, spiral support 6c between oxygen enrichment or high-energy fuel gas inlet tube 6b, also forms downward swirling eddy and enters precombustion chamber 2; Here, the air stream that headspace spout 6a is downward and upper gas port 4b coal gas are out mixed to form anoxycausis (air-fuel ratio is less than 1) state in advance, and the lower gas port 4c of bottom coal gas out also just carries out mixing with air port 5b air out and forms oxygen-excess combustion (air-fuel ratio is greater than 1), two kinds of combustion-gas flows mutually mix further and complete whole combustion process in combustion, export finally by by burner aditus laryngis 3 and burner the applying unit that 8 enter thermal current.Such anoxycausis and the combination of oxygen-excess combustion just well can realize effective control of combustion process well, can complete the regulation and control of ignition temperature and combustion intensity in high heating value burning.If low-heat value gas combustion, oxygen enrichment in burner or high-energy fuel gas inlet tube 6b just delivering oxygen or high heating value combustion gas can enter precombustion chamber with overheavy firing process, and its flow-control just can realize stable, the combustion intensity of combustion process and effective control of ignition temperature very well.Obviously, such burner can realize the burning of high strength, also can realize effectively controlled smooth combustion, can also adapt to the stable and controlled of the larger combustion process of combustion gas variety variations.
The present invention is suitable for the boiler of burn gas fuel, heating furnace, hot-blast stove, a kind of eddy flow high-velocity combustion device regulated with top combustion that the stoves such as limekiln use, make coal gas (or high heating value supplements coal gas), the high efficient combustion device that good admixture all has regulatory function is realized between combustion air (or oxygen-enriched air or pure oxygen), effectively can complete the Homogeneous phase mixing of the classification (or non-graded) of air-flow, the reasonable layout in premixed flow flow field, the adjustment of combustion process, and being uniformly distributed of flue gas flow field, thus control combustion temperature and intensity, promote complete combustibility, conservative control excess air coefficient, and improve the function such as heat utilization efficiency of heat utilization equipment.Due to the employing of new construction burner, improving and also can effectively reduce while Optimizing Combustion process the structure space of the bags and even heat utilization device.
Claims (6)
1. the eddy flow high-velocity combustion device regulated with top combustion, comprise burner body of wall (1), precombustion chamber (2), gas inlet pipe (4), gas allocation circuit (4a), gas port, air intake duct (5), air distributes circuit (5a), air port (5b), burner outlet (8), it is characterized in that, the spherical top that burner body of wall (1) is top and the cylinder of bottom connect to form, the inner chamber of burner body of wall (1) is precombustion chamber (2), gas allocation circuit (4a) and air distribution circuit (5a) is from up to down provided with in the wall of cylinder, the outside ringwall that gas allocation circuit distributes circuit with air is communicated with air intake duct (5) with gas inlet pipe (4) respectively, gas inlet pipe and air intake duct horizontal vertical or horizontal tilt are in cylinder, the upper and lower of the inner side ringwall of gas allocation circuit respectively circumference is evenly arranged multiple horizontal tilt in the upper gas port (4b) of radial direction and lower gas port (4c), upper gas port (4b) is communicated with precombustion chamber (2) with the end of lower gas port (4c), annular air spout barricade (7) is coaxially equipped with in precombustion chamber (2) interior bottom, the circular passage of opened upper end is had between the top of annular air spout barricade and burner body of wall, circular passage is communicated with precombustion chamber, on the inner side ringwall of air distribution circuit (5a), circumference is evenly arranged multiple horizontal tilt in the air port (5b) of radial direction, the connection circular passage, end of air port (5b), and towards annular air spout barricade, with the circular passage formed between itself and precombustion chamber interior wall to guide the flow direction of combustion air, air shunt tube (6) air intake duct is vertically equipped with, the headspace spout (6a) of the top center of the backward lower connection spherical top of upper end horizontal buckling of air shunt tube, headspace spout is communicated with precombustion chamber straight down, in the vertical linkage section that air shunt tube is communicated with headspace spout downwards, oxygen enrichment or high-energy fuel gas inlet tube (6b) are coaxially housed, air shunt tube is communicated with the spiral support (6c) having fixing oxygen enrichment or high-energy fuel gas inlet tube between the vertical linkage section of headspace spout and oxygen enrichment or high-energy fuel gas inlet tube downwards, air shunt tube is upwards vertically stretched out in the upper end of oxygen enrichment or high-energy fuel gas inlet tube, the lower end of oxygen enrichment or high-energy fuel gas inlet tube is communicated with headspace spout downwards, the inner chamber of annular air spout barricade is burner aditus laryngis (3), the bottom of burner aditus laryngis has trumpet-shaped burner to export (8).
2. the eddy flow high-velocity combustion device of band top combustion adjustment according to claim 1, it is characterized in that, the bell jar shape structure that described burner body of wall (1) is made for heat resisting steel, the inwall of burner body of wall (1) has the refractory masses of resistance to 800 DEG C ~ 1000 DEG C of high temperature.
3. the eddy flow high-velocity combustion device of band top combustion adjustment according to claim 1, it is characterized in that, the spout that described upper gas port (4b) and lower gas port (4c) are square-section, upper gas port (4b) and lower gas port (4c) are 1 ° ~ 60 ° with radial inclination angle.
4. the eddy flow high-velocity combustion device of band top combustion adjustment according to claim 1, is characterized in that the spout that described air port (5b) is square-section is 1 ° ~ 60 ° with the inclination angle of radial direction.
5. the eddy flow high-velocity combustion device of band top combustion adjustment according to claim 1, it is characterized in that, described annular air spout barricade (7) is cylinder, form air-flow circuit between the breach of outer upper and precombustion chamber inwall, the upper edge of annular air spout barricade extends towards lower gas port (4c) direction.
6. the eddy flow high-velocity combustion device of band top combustion adjustment according to claim 1, it is characterized in that, described spiral support (6c) is spiral helicine plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510911535.9A CN105444171A (en) | 2015-12-11 | 2015-12-11 | Top-combustion-adjustable cyclone type high-speed combusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510911535.9A CN105444171A (en) | 2015-12-11 | 2015-12-11 | Top-combustion-adjustable cyclone type high-speed combusting device |
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| Publication Number | Publication Date |
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| CN105444171A true CN105444171A (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510911535.9A Pending CN105444171A (en) | 2015-12-11 | 2015-12-11 | Top-combustion-adjustable cyclone type high-speed combusting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196054A (en) * | 2016-08-06 | 2016-12-07 | 陈维汉 | The cyclone classification of a kind of center water conservancy diversion regulation and the burner of temperature-controllable |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010048796A1 (en) * | 2008-10-27 | 2010-05-06 | 郑州豫兴耐火材料有限公司 | Burner and its gas distribution loop |
| CN204080004U (en) * | 2014-08-14 | 2015-01-07 | 陕西钢铁集团有限公司 | A kind of double-current field top burning type hot blast stove combustor |
| CN204254614U (en) * | 2014-11-27 | 2015-04-08 | 陈维汉 | Gas-air premix sprays the backflow preheat staged combustion device that vault jet guides |
-
2015
- 2015-12-11 CN CN201510911535.9A patent/CN105444171A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010048796A1 (en) * | 2008-10-27 | 2010-05-06 | 郑州豫兴耐火材料有限公司 | Burner and its gas distribution loop |
| CN204080004U (en) * | 2014-08-14 | 2015-01-07 | 陕西钢铁集团有限公司 | A kind of double-current field top burning type hot blast stove combustor |
| CN204254614U (en) * | 2014-11-27 | 2015-04-08 | 陈维汉 | Gas-air premix sprays the backflow preheat staged combustion device that vault jet guides |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196054A (en) * | 2016-08-06 | 2016-12-07 | 陈维汉 | The cyclone classification of a kind of center water conservancy diversion regulation and the burner of temperature-controllable |
| CN106196054B (en) * | 2016-08-06 | 2018-06-26 | 陈维汉 | The cyclone classification and the burner of temperature-controllable that a kind of center water conservancy diversion is adjusted |
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Application publication date: 20160330 |