CN103912876A - Burner and burner system - Google Patents
Burner and burner system Download PDFInfo
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- CN103912876A CN103912876A CN201410119593.3A CN201410119593A CN103912876A CN 103912876 A CN103912876 A CN 103912876A CN 201410119593 A CN201410119593 A CN 201410119593A CN 103912876 A CN103912876 A CN 103912876A
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- pipeline
- inner sleeve
- nozzle
- burner
- tubulation
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Abstract
The invention discloses a burner which comprises a central pipe, an inner sleeve, an outer sleeve, an annular nozzle and an ignition device. The inner sleeve sleeves the central pipe. The outer sleeve sleeves the inner sleeve. The annular nozzle comprises a guide pipe, a distribution pipe and a nozzle tube nest. The invention further discloses a burner system. The burner has the advantages that the burner is wide in application range and reasonable in design, the burner is applicable to conditions that fuel gas is changed or load needs to be adjusted, continuous safe operation of equipment is guaranteed, and stable and efficiency combustion effect can be kept even during high-load operation.
Description
Technical field
The present invention relates to a kind of burner and combustion nozzle system, relate in particular to burner and combustion nozzle system that a kind of hot-blast stove is used.
Background technology
Hot-blast stove is more a kind of equipment that uses in current industrial production, produces hypoxemia hot gas by burning, can be used as inert gas some material is processed, and its raw material mainly contains coal dust and combustion gas two classes.Aspect combustion gas, have again the various unstripped gas such as natural gas, coal gas, liquefied petroleum gas.In industrial production; usually also can some low-calorie imflammable gas of by-product; but; due to calorific value and the different in kind of different fuel gas; cause the raw material form of hot-blast stove in the market all more single; can not be completely compatible to other unstripped gas, well two or more different combustion gas of the use of economical and energy saving.Also have in addition the problem of hot-blast stove Load Regulation, common hot-blast stove is under underload, and in the situation that the unstripped gas scale of construction is little, it is little in the gas speed of burner outlet, easily produces tempering, fire extinguishing, also easily causes the scaling loss of burner head; Under high load capacity, unstripped gas is supplied with when many, and it just becomes large in the gas speed of burner outlet, and the phenomenons such as de-fire, incomplete combustion easily occur.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of burner and combustion nozzle system, use single and load to be difficult for the problem regulating to solve raw material that existing hot-blast stove exists.
First aspect for achieving the above object, the invention provides a kind of burner, and described burner comprises:
Central tube, has first passage in described central tube, and the top of described central tube has the first entrance, and the lower end of described central tube has the first outlet;
Inner sleeve, described inner sleeve is enclosed within outside described central tube, thereby forms second channel between described inner sleeve and described central tube, and the top of described inner sleeve is provided with the second entrance, and the lower end of described inner sleeve has the second outlet;
Outer tube, described outer tube is enclosed within outside described inner sleeve, thereby forms third channel between described outer tube and described inner sleeve, and the top of described outer tube is provided with the 3rd entrance, and the lower end of described outer tube has the 3rd outlet;
Nozzle ring, described nozzle ring comprises conduit, distributor pipe and Duo Gen nozzle tubulation, described distributor pipe ringwise, is arranged in described third channel around described inner sleeve; One end of described conduit is connected to described distributor pipe, and the other end extends through described outer tube to described outer tube; The upper end of described nozzle tubulation is connected with distributor pipe and is uniformly distributed in described distributor pipe lower end, and the lower end of described nozzle tubulation is communicated with described third channel;
Igniter, described igniter is arranged between described inner sleeve and nozzle tubulation.
According to burner of the present invention, preferably, described outer tube is extended in the upper end of described inner sleeve, so that described the second entrance is positioned at outside described outer tube; Described inner sleeve is extended in the upper end of described central tube, so that described the first entrance is positioned at outside described inner sleeve.
According to burner of the present invention, preferably, the lower end of every nozzle tubulation is identical with the distance of described central tube, and described central tube, inner sleeve and outer tube coaxially arrange.
According to burner of the present invention, preferably, the lower end of described inner sleeve is than the low 1-2mm in the lower end of described central tube; The lower end of described nozzle tubulation is than the low 2-5mm in the lower end of described central tube; The 1/8-1/2 of the internal diameter that further preferably, the horizontal range between described inner sleeve and central tube is described central tube; Horizontal range between the lower end of described nozzle tubulation and described inner sleeve is the 1/2-3/2 of described inner sleeve internal diameter; Horizontal range between the lower end of described nozzle tubulation and described outer tube is the 1/3-2/3 of distance between the lower end of described nozzle tubulation and described central tube.
According to burner of the present invention, preferably, the 1/4-3/4 of bore centered by the internal diameter of tubulation in described nozzle tubulation; The internal diameter of described distributor pipe is 3-6 times of nozzle rows bore; Further preferably, the 1/4-1/2 of bore centered by the internal diameter of tubulation in described nozzle tubulation; The internal diameter of described distributor pipe is 4-5 times of nozzle rows bore.
According to burner of the present invention, preferably, the quantity of described nozzle tubulation is 4-12 root; More preferably 5-10 root.
Second aspect to achieve these goals, the invention provides a kind of combustion nozzle system, the pipe network that described combustion nozzle system comprises burner as above and matches with described burner, and described pipe network is used to burner to provide burning required raw material.
According to combustion nozzle system of the present invention, preferably, described pipe network comprises the first pipeline, the second pipeline and the 3rd pipeline, and one end of described the first pipeline is connected to air intake, and the other end of described the first pipeline is connected to oxygen source, such as air or pure oxygen etc.; One end of described the second pipeline is connected to described conduit, and the other end is connected to the first fuels sources; One end of described the 3rd pipeline is connected with the first entrance and the second entrance by first, second arm respectively, and the other end of described the 3rd pipeline is connected to the second fuels sources; Between described the second pipeline and the 3rd pipeline, be also provided with connecting pipeline, so that the material in the second pipeline can enter the 3rd pipeline, or material in the 3rd pipeline can enter the second pipeline;
On described the 3rd pipeline, be also provided with the 3rd arm that is connected to described igniter;
Described first, second, and third pipeline, connecting pipeline, and be equipped with control valve on first, second, and third arm.Certainly, on above-mentioned pipeline, can also be provided with other temperature or pressure monitoring instrument.
According to combustion nozzle system of the present invention, preferably, described the first fuels sources and the second fuels sources are different fuels sources.
Compared with prior art, the present invention has the following advantages:
(1) applied widely, in the case of using different unstripped gas or the real-time status of unstripped gas change, this combustion nozzle system all can be suitable for, and can maintain burner and stablize lasting burning load, the continuous safe operation of assurance equipment;
(2) the adjusting burner load of energy convenient, can meet the mixed combustion of heterogeneity, different calorific value unstripped gas, can also regulate tolerance by control valve, the load of conditioning equipment;
(3) burner of the present invention is reasonable in design, even still can keep the combustion efficiency of stability and high efficiency in the time of heavy-duty service.
Accompanying drawing explanation
Fig. 1 is the schematic cross-section of burner of the present invention;
Fig. 2 is the schematic diagram of combustion nozzle system of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail, but the present invention is not limited thereto.
As depicted in figs. 1 and 2, the pipe network that combustion nozzle system of the present invention comprises burner and matches with described burner, is used to burner to provide burning required raw material, such as air and fuel gas.
Described burner comprises central tube 1, inner sleeve 2, outer tube 3, nozzle ring, and burning torch 5.
In described central tube 1, have first passage 11, the top of described central tube 1 is provided with the first entrance 12, and the lower end of described central tube 1 is provided with the first outlet.Fuel gas can enter described first passage 11 and at the first exit and oxygen source catalytic combustion, described fuel gas can be liquefied petroleum gas, natural gas, coal gas etc. from the first entrance 12.
Described inner sleeve 2 is enclosed within outside described central tube 1, thereby forms second channel 21 between described inner sleeve 2 and described central tube 1, and the top of described inner sleeve 2 is provided with the second entrance 22, and the lower end of described inner sleeve 2 has the second outlet.Fuel gas can enter described second channel 21 and burn in the second exit from the second entrance 22.
Described outer tube 3 is enclosed within outside described inner sleeve 2, thereby forms third channel 31 between described outer tube 3 and described inner sleeve 2, and the top of described outer tube 3 is provided with the 3rd entrance 32, and the lower end of described outer tube 3 has the 3rd outlet.In service at burner, provide burning required oxygen source by described third channel 31.
Described nozzle ring comprises conduit 41, distributor pipe 43 and Duo Gen nozzle tubulation 42, and described distributor pipe 43 ringwise, is arranged in described third channel 31 around described inner sleeve 2; One end of described conduit 41 is connected to described distributor pipe 43, the other end extends through described outer tube 3 to described outer tube 3, such as shown in Figure 1, extend to outside described outer tube 3 through the sidewall of described outer tube 3, to supply fuel in described distributor pipe 43; The upper end of described nozzle tubulation 42 is connected with distributor pipe 43 and is uniformly distributed in the lower end of described distributor pipe 43, and the lower end of described nozzle tubulation 42 is communicated with described third channel 31.Like this, fuel gas can enter distributor pipe 43 by conduit 41, and fuel gas enters in described nozzle tubulation 42 after distributor pipe 43 is uniformly distributed, and in lower end and the oxygen source mixed combustion of described nozzle tubulation 42.
Preferably, the distance between every nozzle tubulation 42 and described central tube is identical, and described central tube 1, inner sleeve 2 and outer tube 3 coaxially arrange, and makes fuel gas more even with contacting of air like this in the time of burning.Further preferably, the quantity of described nozzle tubulation 42 is preferably 4-12 root, is further preferably 5-10 root.
Thus, in the time all passing into fuel gas in described first passage 11, second channel 21 and described cavity 43, mainly participate in the combustion reaction of the oxygen source transmitting between described nozzle tubulation 42 and described inner sleeve 2 from the fuel gas of first passage 11 and second channel 21.Mainly participate in the combustion reaction of the oxygen source transmitting between described nozzle tubulation 42 and described outer tube 3 from the fuel gas in the cavity 43 of nozzle tubulation 42.
In the time all passing into fuel gas in described first passage 11, second channel 21 and described nozzle tubulation 42, the tolerance of fuel gas is more much bigger than only passing into tolerance in described first passage 11.Therefore,, except correspondingly passing into more oxygen source, size and the position relationship of adjusting each passage are also very important.
In one embodiment, preferably, the lower end of described inner sleeve 2 is than the low 1-2mm in the lower end of described central tube 1; The lower end of described nozzle tubulation 42 is than the low 2-5mm in the lower end of described central tube 1.
The lower end of inner sleeve 2 arranges and lower slightlyly can maintain flame of centre trend forward downwards than the lower end of central tube 1, prevents that flame from disperseing to weaken, and inner sleeve 2 is unsuitable too low simultaneously, otherwise easily by flame of centre scaling loss; The lower end of described nozzle tubulation 42 arranges lower slightly can making than the lower end of central tube 1 and can just in time be ignited by central tube 1 and inner sleeve 2 flame out from nozzle tubulation 42 fuel gas out, protects central tube 1 and inner sleeve 2 to avoid the direct impact of flame simultaneously.
In one embodiment, the horizontal range between described inner sleeve 2 and central tube 1 is the 1/8-1/2 of the internal diameter of described central tube 1, more preferably the 1/4-3/8 of the internal diameter of described central tube 1.
Horizontal range between the lower end of described nozzle tubulation 42 and described inner sleeve 2 is the 1/2-3/2 of described inner sleeve 2 internal diameters, more preferably the 3/4-5/4 of described inner sleeve 2 internal diameters.
Horizontal range between the lower end of described nozzle tubulation 42 and described outer tube 3 is the 1/3-2/3 of distance between described nozzle tubulation 42 and described central tube, more preferably 1/2-2/3.
In one embodiment, the 1/4-3/4 of bore centered by the internal diameter of tubulation in described nozzle tubulation; The internal diameter of described distributor pipe is 3-6 times of nozzle rows bore.Further preferably, the 1/4-1/2 of bore centered by the internal diameter of tubulation in described nozzle tubulation; The internal diameter of described distributor pipe is 4-5 times of nozzle rows bore.
Described burning torch 5 is arranged between described inner sleeve 2 and spray nozzle part 4, is used to burner igniting.Described burning torch 5 itself can be identical with burning torch of the prior art, is not described in detail in this.
In the present invention, for the ease of pass into fuel gas in first passage 11 and second channel 21, described outer tube 3 is extended in the upper end of described inner sleeve 2, so that described the second entrance 22 is positioned at outside described outer tube 3; Described inner sleeve 2 is extended in the upper end of described central tube 1, so that described the first entrance 12 is positioned at outside described inner sleeve 2.
In the present embodiment, described pipe network comprises the first pipeline 6, the second pipeline 7 and the 3rd pipeline 8, and one end of described the first pipeline 6 is connected to air intake 32, and the other end is connected to air-source, for air being sent into described third channel 31.One end of described the second pipeline 7 is connected to described conduit 41, and the other end is connected to the first fuels sources, for fuel gas being sent into nozzle tubulation 42.One end of described the 3rd pipeline 8 is connected with the first entrance 12 and the second entrance 22 respectively with the second arm 81 by the first arm 82; 8 other ends of described the 3rd pipeline are connected to the second fuels sources, described the first fuels sources and the second fuels sources can be the same or different, but be conventionally connected to different fuels sources, the fuels sources connecting such as described the second pipeline 7 is natural gas, and the fuels sources that described the 3rd pipeline 8 connects is liquefied petroleum gas.
Between described the second pipeline 7 and the 3rd pipeline 8, be also provided with connecting pipeline 9, so that the material in the second pipeline 7 can enter the 3rd pipeline 8, or material in the 3rd pipeline 8 can enter the second pipeline 7.In addition, on described the 3rd pipeline 8, be also provided with the 3rd arm 83 that is connected to described burning torch 5.Above-mentioned first, second, and third pipeline 6,7 and 8, connecting pipeline 9, and be equipped with control valve on first, second, and third arm 82,81 and 83, with adjust flux according to actual needs.
According to above-mentioned burner and pipe network, described combustion nozzle system has multiple regulative mode, can under multiple load, move, flexible and changeable.According to rate equation: v=Q/S(v-speed; Q-flow; S-circulation area), for anti-locking system tempering or the de-fire of burner front end, need to maintain the flow velocity of burner outlet fuel gas in a suitable scope, so when combustion nozzle system load variations, while being flow Q variation, the circulation area S of the fuel gas of burner of the present invention is also designed to can be with the value of load respective change.After igniting, only first passage 11 enters fuel gas burning, can in the time that underload requires, adopt; Or first passage 11 and second channel 21 enter fuel gas burning simultaneously, can in the time of middle-low load, adopt; Or first passage 11 and cavity 43 charge combustion simultaneously can adopt in the time of middle high load capacity; Or first passage 11, second channel 21 and cavity 43 charge combustion simultaneously, can provide peak load.
In when operation, can also adopt multiple different fuel gas, such as some other fuel gas of by-product when the industrial production, if these fuel gas directly send torch burning obviously to waste resource, can be passed into combustion nozzle system utilization.In a kind of situation, the fuel gas in described first passage 11, second channel 21 and cavity 43 can be all the fuel gas from the 3rd pipeline 8; In a kind of situation, the fuel gas in described first passage 11, second channel 21 and cavity 43 can be all the fuel gas from the second pipeline 7; In a kind of situation, the fuel gas of described first passage 11 and second channel 21 can be all the fuel gas from the 3rd pipeline 8, and the fuel gas in described cavity 43 can be the fuel gas from the second pipeline 7; In a kind of situation, the fuel gas in the second pipeline 7 and the 3rd pipeline 8 can mix by connecting pipeline 9, then delivers in first passage 11, second channel 21 or cavity 43.Like this, when a kind of fuel gas is not enough or measure when large, this combustion nozzle system all can adapt to by adjustings, maintains stablizing, fully burning of combustion nozzle system.It should be noted that the calorific value difference due to different fuel gas, if need keeping system load constant, in the time switching fuels sources, need to adjust tolerance according to calorific value, should suitably reduce tolerance when switching to the large fuels sources of calorific value.In addition, for some fuels sources, its volume may vary with temperature larger, therefore needs the actual temperature of based on fuel source in pipe network to make suitable adjustment to its flow.
Claims (10)
1. a burner, is characterized in that, described burner comprises:
Central tube, has first passage in described central tube, and the top of described central tube has the first entrance, and the lower end of described central tube has the first outlet;
Inner sleeve, described inner sleeve is enclosed within outside described central tube, thereby forms second channel between described inner sleeve and described central tube, and the top of described inner sleeve is provided with the second entrance, and the lower end of described inner sleeve has the second outlet;
Outer tube, described outer tube is enclosed within outside described inner sleeve, thereby forms third channel between described outer tube and described inner sleeve, and the top of described outer tube is provided with the 3rd entrance, and the lower end of described outer tube has the 3rd outlet;
Nozzle ring, described nozzle ring comprises conduit, distributor pipe and Duo Gen nozzle tubulation, described distributor pipe ringwise, is arranged in described third channel around described inner sleeve; One end of described conduit is connected to described distributor pipe, and the other end extends through described outer tube to described outer tube; The upper end of described nozzle tubulation is connected with distributor pipe and is uniformly distributed in the lower end of described distributor pipe, and the lower end of described nozzle tubulation is communicated with described third channel;
Igniter, described igniter is arranged between described inner sleeve and nozzle tubulation.
2. burner as claimed in claim 1, is characterized in that, described outer tube is extended in the upper end of described inner sleeve, so that described the second entrance is positioned at outside described outer tube; Described inner sleeve is extended in the upper end of described central tube, so that described the first entrance is positioned at outside described inner sleeve.
3. burner as claimed in claim 1, is characterized in that, the lower end of every nozzle tubulation is identical with the distance of described central tube, and described central tube, inner sleeve and outer tube coaxially arrange.
4. burner as claimed in claim 3, is characterized in that, the lower end of described inner sleeve is than the low 1-2mm in the lower end of described central tube; The lower end of described nozzle tubulation is than the low 2-5mm in the lower end of described central tube.
5. burner as claimed in claim 3, is characterized in that, the 1/8-1/2 of the internal diameter that the horizontal range between described inner sleeve and central tube is described central tube; Horizontal range between the lower end of described nozzle tubulation and described inner sleeve is the 1/2-3/2 of described inner sleeve internal diameter; Horizontal range between the lower end of described nozzle tubulation and described outer tube is the 1/3-2/3 of the horizontal range between lower end and the described central tube of described nozzle tubulation.
6. burner as claimed in claim 5, is characterized in that, the 1/4-3/4 of bore centered by the internal diameter of tubulation in described nozzle tubulation; The internal diameter of described distributor pipe is 3-6 times of nozzle rows bore.
7. the burner as described in any one in claim 1-6, is characterized in that, the quantity of described nozzle tubulation is 4-12 root.
8. a combustion nozzle system, is characterized in that, comprise burner as described in any one in claim 1-7 and with as described in the pipe network that matches of burner, described pipe network is used to burner to provide burning required raw material.
9. combustion nozzle system as claimed in claim 8, is characterized in that, described pipe network comprises the first pipeline, the second pipeline and the 3rd pipeline, and one end of described the first pipeline is connected to air intake, and the other end of described the first pipeline is connected to oxygen source; One end of described the second pipeline is connected to described conduit, and the other end is connected to the first fuels sources; One end of described the 3rd pipeline is connected with the first entrance and the second entrance by first, second arm respectively, and the other end of described the 3rd pipeline is connected to the second fuels sources;
Between described the second pipeline and the 3rd pipeline, be also provided with connecting pipeline, so that the material in the second pipeline can enter the 3rd pipeline, or material in the 3rd pipeline can enter the second pipeline;
On described the 3rd pipeline, be also provided with the 3rd arm that is connected to described igniter;
Described first, second, and third pipeline, connecting pipeline, and be equipped with control valve on first, second, and third arm.
10. combustion nozzle system as claimed in claim 9, is characterized in that, described the first fuels sources and the second fuels sources are different fuels sources.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410119593.3A CN103912876A (en) | 2014-03-27 | 2014-03-27 | Burner and burner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410119593.3A CN103912876A (en) | 2014-03-27 | 2014-03-27 | Burner and burner system |
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| Publication Number | Publication Date |
|---|---|
| CN103912876A true CN103912876A (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410119593.3A Pending CN103912876A (en) | 2014-03-27 | 2014-03-27 | Burner and burner system |
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| CN (1) | CN103912876A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104650989A (en) * | 2015-02-06 | 2015-05-27 | 安徽科达洁能股份有限公司 | Circulating fluidized bed gasification furnace |
| CN104791799A (en) * | 2015-03-19 | 2015-07-22 | 中国石油化工股份有限公司 | Oxygen-enriched oxidant gas nozzle of oxygen-enriched combustion furnace |
| CN105627311A (en) * | 2014-11-06 | 2016-06-01 | 佛山高富中石油燃料沥青有限责任公司 | Natural gas burner |
| CN105972602A (en) * | 2016-05-24 | 2016-09-28 | 华东理工大学 | Processing device for solid organic waste and processing technique using same |
| CN109798514A (en) * | 2019-01-31 | 2019-05-24 | 云南农业大学 | A kind of resistive connection slag biomass combustion furnace spray apparatus for ash and biomass combustion furnace |
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| CN202947133U (en) * | 2012-11-07 | 2013-05-22 | 衡阳华菱钢管有限公司 | Combustion device alternately using different gas fuels |
| CN203784947U (en) * | 2014-03-27 | 2014-08-20 | 神华集团有限责任公司 | Burner and burner system |
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2014
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| JP2002048315A (en) * | 2000-08-07 | 2002-02-15 | Nippon Sanso Corp | Cooling jacket |
| CN1715745A (en) * | 2004-07-01 | 2006-01-04 | 气体产品与化学公司 | Staged combustion system with ignition-assisted fuel lances |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627311A (en) * | 2014-11-06 | 2016-06-01 | 佛山高富中石油燃料沥青有限责任公司 | Natural gas burner |
| CN105627311B (en) * | 2014-11-06 | 2019-02-26 | 佛山高富中石油燃料沥青有限责任公司 | A kind of neat gas burner |
| CN104650989A (en) * | 2015-02-06 | 2015-05-27 | 安徽科达洁能股份有限公司 | Circulating fluidized bed gasification furnace |
| CN104791799A (en) * | 2015-03-19 | 2015-07-22 | 中国石油化工股份有限公司 | Oxygen-enriched oxidant gas nozzle of oxygen-enriched combustion furnace |
| CN105972602A (en) * | 2016-05-24 | 2016-09-28 | 华东理工大学 | Processing device for solid organic waste and processing technique using same |
| CN109798514A (en) * | 2019-01-31 | 2019-05-24 | 云南农业大学 | A kind of resistive connection slag biomass combustion furnace spray apparatus for ash and biomass combustion furnace |
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Application publication date: 20140709 |
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