CN204329013U - A kind of twice air-intaking gas combustor - Google Patents
A kind of twice air-intaking gas combustor Download PDFInfo
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- CN204329013U CN204329013U CN201420785420.0U CN201420785420U CN204329013U CN 204329013 U CN204329013 U CN 204329013U CN 201420785420 U CN201420785420 U CN 201420785420U CN 204329013 U CN204329013 U CN 204329013U
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- airduct
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- intaking
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Abstract
The utility model provides a kind of twice air-intaking gas combustor, the center of burner is provided with Gas Pipe, has blast tube within Gas Pipe, the port of export of blast tube is provided with gas spray head, gas spray head has gas jet orifice; Outside Gas Pipe, have airduct, once wind inlet on airduct, once wind passage between airduct and Gas Pipe, the port of export of First air passage is provided with the air-distributing disc for air distribution; Outside airduct, there is outer cylinder body, outer cylinder body has secondary air inlet, between outer cylinder body and airduct, have secondary air channel.The utility model flame adjustable range is wider, and efficiency of combustion is high, and flame holding is strong.
Description
Technical field
The utility model relates to fuel gas buring technical field.
Background technology
The neat gas burner that current domestic kiln uses, based on an air intake, namely the air inlet of burner only has one, combustion air enters burner from an air inlet, in burner, carry out mixed combustion with combustion gas, and its shortcoming is that flame adjustable range is wide not, burn under many operating modes complete not, flame is stable not, the problems such as these shortcomings all can cause kiln energy consumption higher, unstable product quality.
Utility model content
The purpose of this utility model is the weak point overcoming above-mentioned prior art, proposes a kind of twice air-intaking gas combustor, makes flame adjustable range wider, and completely, flame holding is strong in burning.
The utility model solves the technical scheme that its technical problem adopts: a kind of twice air-intaking gas combustor, the center of burner is provided with Gas Pipe, there is blast tube within Gas Pipe, the port of export of blast tube is provided with gas spray head, gas spray head has gas jet orifice; Outside Gas Pipe, have airduct, once wind inlet on airduct, once wind passage between airduct and Gas Pipe, the port of export of First air passage is provided with the air-distributing disc for air distribution; Outside airduct, there is outer cylinder body, outer cylinder body has secondary air inlet, between outer cylinder body and airduct, have secondary air channel.
During this burner operation, combustion gas enters blast tube in Gas Pipe and flow forward, then enters the inner chamber of gas spray head, the gas jet orifice ejection then in gas spray head.Combustion air is divided into two-way to enter: First air enters from First air import, and along First air passage flow forward, then sprays after air-distributing disc air distribution, then mixes with the combustion gas that gas jet orifice sprays, and ignition; Secondary Air enters from secondary air inlet, and along secondary air channel flow forward, flame is played to the effect of supplementary combustion air.
The utility model has following beneficial effect: the effect separately of First air and Secondary Air is divided the work clearly: First air is mainly used in mixing, Secondary Air is mainly used in afterburning, can by valve respective before adjustment First air import and secondary air inlet, or by incoming flow stagnation pressure respective before adjustment First air import and secondary air inlet, just can regulate the proportioning of First air and Secondary Air easily, thus regulate the fired state of flame, make flame can adjust good combustion efficiency under different operating modes, the length of flame and the range of injection can also be regulated simultaneously, the adjustable range of flame has broadened, also make burn more complete under different operating mode, flame is more stable.
Twice described air-intaking gas combustor can also have air duct and aerofoil in the arranged outside of the outlet section of airduct; Aerofoil is connected with airduct and air duct respectively, and the port of export of close airduct; Airduct, between air duct and aerofoil, form air duct inner chamber, between air duct inner chamber and First air passage, have intercommunicating pore; Total total at least two spray air holes on aerofoil and/or on air duct.Beneficial effect so is: the combustion air in First air passage enters air duct inner chamber by intercommunicating pore, spray air holes ejection again on aerofoil and/or on air duct, spray wind jet is formed in the outer periphery of wind tube outlet, this spray wind jet can supplement combustion air from the outer periphery of wind tube outlet on the one hand, this spray wind jet can contact with the combustion gas of around spreading laterally from wind tube outlet and catch fire on the other hand, broaden the firing range of flame, the stability of flame is strengthened, burns more complete.
Twice described air-intaking gas combustor, can have air vent on air-distributing disc, and such First air to contact with combustion gas after caning be passed through air vent ejection and mixes, burns.
Twice described air-intaking gas combustor, can have ventilation slot on the face of cylinder, periphery of air-distributing disc, and such First air can to contact with combustion gas and mix, burns after ventilation slot ejection.
Twice described air-intaking gas combustor, following structure can be adopted: it has air vent and refers to that air vent is all comprise special-shaped air vent in special-shaped air vent or air vent on air-distributing disc, described special-shaped air vent is H in the full-size of radial direction, full-size in the direction perpendicular to radial direction is W, if the scope of R=H/W, R is: 1.29≤R≤3.The results showed, the structure of special-shaped air vent like this is conducive to the rigidity strengthening flame, and is conducive to the range strengthening flame.
Twice described air-intaking gas combustor, can have the gas jet orifice of the wind jet that directive sprays from special-shaped air vent in gas spray head.Beneficial effect so is: combustion gas can be mixed preferably with the wind jet sprayed from special-shaped air vent, make flame while rigidity is strengthened, and flammability is better, and flame is more stable.
Twice described air-intaking gas combustor, can adopt following structure: air-distributing disc has at least two discharge areas be greater than 8mm
2air vent, be greater than 8mm at these discharge areas
2air vent in the middle of, have two at least in the fan-shaped range of its air-distributing disc present separately, do not have the ventilation slot on the face of cylinder, air-distributing disc periphery, structure like this is conducive to forming stable fire area in above-mentioned fan-shaped range, thus improves the flame holding of whole burner.
Twice described air-intaking gas combustor, can have the spray air holes of following feature on aerofoil: to be the scope of the angle of θ, θ be the angle between the parallel lines of the axis of its center line and burner: 0≤θ≤30 °.Beneficial effect so is: the angle of the velocity attitude of wind that spray air holes sprays and the axis of burner is less, in this angular range, the velocity component of speed on the direction, axis of burner of the wind of spray air holes ejection is larger, thus be conducive to strengthening the flame effect of spraying forward, be conducive to the range strengthening flame.
Twice described air-intaking gas combustor, can adopt following structure: the distance that air-distributing disc and outer cylinder body export is the scope of L, L is 0≤L≤170mm.Structure like this is conducive to making flame to be outranged from spraying after outer cylinder body outlet ejection, thus the range of increasing flame.
Twice described air-intaking gas combustor, can be provided with support in the middle of secondary air channel, and described support and airduct connect into as a whole, is matched in clearance between support and outer cylinder body.Structure like this can guarantee the axiality of airduct and outer cylinder body, and structural design is compact, easy to process, uses also more convenient.Support can have through hole and groove.
Twice described air-intaking gas combustor, the internal diameter of the outlet of airduct is the scope of D, D: 35mm≤D≤72mm, and this is through kiln field trial and sums up of drawing and preferably use section, D is comparatively reasonable in this scope combustion reaction rate, and total combustion effect is ideal.The shape of the outlet inward flange of airduct can be circular, and also can be oval or other geometries, when its shape is circle, described internal diameter D be exactly diameter of a circle; When its shape is other geometries, its internal diameter is converted to diameter of a circle to measure by equal circulation area.
In some cases, Secondary Air can be cut off, and namely secondary air inlet does not have combustion air to enter.This is a kind of using method of the technology condition in order to meet some kiln.
Compared with prior art, the utility model tool has the following advantages and beneficial effect:
1. flame adjustable range is wider, can burn more complete under various operating mode, and the stability of flame is strong.
2. the utility model shows through laboratory test and kiln onsite application, and this burner combustion efficiency is high, and flame is clear, and flame holding is good, and adjustable range is wider.The utility model both can natural gas fuel, also can use the multiple gases fuel such as oil liquefied gas, producer gas, coke-stove gas.
Accompanying drawing explanation
Fig. 1 is the utility model first example structure schematic diagram;
Fig. 2 is the utility model second example structure schematic diagram;
Fig. 3 is the A-A partial sectional view of Fig. 2, i.e. air-distributing disc and gas spray head front view;
Fig. 4 is that in the middle of second embodiment, air-distributing disc upper outlet area is greater than 8mm
2air vent, the schematic diagram of the fan-shaped range of the air-distributing disc at it;
Fig. 5 is the utility model the 3rd example structure schematic diagram;
Fig. 6 is the utility model the 4th example structure schematic diagram.
In figure, 1 is Gas Pipe, 2 is blast tube, 3 is First air import, 4 is First air passage, 5 is airduct, 6 is secondary air inlet, 7 is secondary air channel, 8 is outer cylinder body, 8.1 is the metal sleeve in the middle of outer cylinder body, 8.2 is the burner block of refractory material material in the middle of outer cylinder body, 8.3 is the sleeve pipe of silicon carbide material in the middle of outer cylinder body, 9 is air-distributing disc, 10 is gas spray head, 11 is gas jet orifice, 12 is air vent, 13 is ventilation slot, 14 is support, 15 is air duct, 16 is aerofoil, 17 is air duct inner chamber, 18 is intercommunicating pore, 19 is spray air holes, 20 is the axis of burner, 21 is the parallel lines of the axis of burner, 22 is through hole, 23 is groove, 24 for spraying the center line of air holes, 25 is outer cylinder body outlet.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described in further detail.
Embodiment one, as shown in Figure 1, is provided with Gas Pipe 1 at the center of burner, has blast tube 2 within Gas Pipe 1, the port of export of blast tube 2 is provided with gas spray head 10, gas spray head 10 has gas jet orifice 11; Outside Gas Pipe 1, have airduct 5, once wind inlet 3 on airduct 5, once wind passage 4 between airduct 5 and Gas Pipe 1, the port of export of First air passage 4 is provided with the air-distributing disc 9 for air distribution; Outside airduct 5, there is outer cylinder body 8, outer cylinder body 8 has secondary air inlet 6, between outer cylinder body 8 and airduct 5, have secondary air channel 7; Air-distributing disc 9 has air vent 12, the face of cylinder, periphery of air-distributing disc 9 has ventilation slot 13.In the middle of the present embodiment, air vent 12 is circular port, has angle between the axis 20 of air vent 12 and burner; In the middle of secondary air channel 7, be provided with support 14, support 14 is as a whole through being welded to connect into airduct 5, is matched in clearance between support 14 and outer cylinder body 8.Support 14 has through hole 22 and groove 23.The internal diameter of the outlet of airduct 5 is D, in the present embodiment D=62mm.
Embodiment two, as shown in Figure 2, has air duct 15 and aerofoil 16 in the arranged outside of the outlet section of airduct 5; Aerofoil 16 is connected with airduct 5 and air duct 15 through welding respectively, and the port of export of close airduct 5; Airduct 5, between air duct 15 and aerofoil 16, form air duct inner chamber 17, between air duct inner chamber 17 and First air passage 4, have intercommunicating pore 18; Aerofoil 16 there are 8 spray air holes 19, air duct 15 have 6 spray air holes 19.Air-distributing disc 9 has special-shaped air vent 12, and as shown in Figure 3, this special-shaped air vent 12 is H=7mm in the full-size of radial direction, and the full-size in the direction perpendicular to radial direction is W=4mm, if R=H/W, then and R=1.75.Gas spray head 10 has the gas jet orifice 11 of the wind jet that directive sprays from special-shaped air vent 12.In the present embodiment, 6 discharge areas are had to be greater than 8mm
2air vent, and be all special-shaped air vent, the area of each special-shaped air vent equals 24.6mm
2, these 6 special-shaped air vents, in the fan-shaped range of its air-distributing disc present separately, do not have the ventilation slot on the face of cylinder, air-distributing disc periphery, as shown in Figure 4.In the middle of the actual use procedure of kiln, also according to the needs of kiln process conditions, a part of discharge area can be designed with and be greater than 8mm
2air vent, in the fan-shaped range of the air-distributing disc at it, have the ventilation slot on the face of cylinder, air-distributing disc periphery.The angle that center line 24 and the angle of the parallel lines 21 of the axis 20 of burner of 8 spray air holes 19 that aerofoil 16 is opened are θ, θ is 6 °.In the present embodiment, outer cylinder body 8 is made up of jointly the burner block 8.2 of one section of metal sleeve 8.1 and one section of refractory material material, this is actual needs according to part kiln scene and a kind of structure taked, secondary air channel 7 is had between the inwall of the burner block 8.2 of this section of metal sleeve 8.1 and one section of refractory material material and airduct 5, the burner block 8.2 of refractory material material is positioned at Way out, so the outlet of 8.2 that is to say the outlet of outer cylinder body 8.Air-distributing disc 9 is L with the distance of the outlet of outer cylinder body 8, L=150mm in the middle of the present embodiment.All the other structures of the present embodiment are identical with embodiment one.
Embodiment three, as shown in Figure 5, in the middle of the present embodiment, aerofoil 16 there are 8 spray air holes 19, angle between these 8 the spray center lines 24 of air holes 19 and the parallel lines 21 of the axis 20 of burner is 0 °, namely the center line 24 of these 8 spray air holes 19 is parallel with the axis 20 of burner, and air duct 15 does not have spray air holes.In the present embodiment, outer cylinder body 8 is made up of jointly the sleeve pipe 8.3 of one section of metal sleeve 8.1 and one section of silicon carbide material, this is actual needs according to part kiln scene and a kind of structure taked, secondary air channel 7 is had between the inwall of the sleeve pipe 8.3 of this section of metal sleeve 8.1 and one section of silicon carbide material and airduct 5, the sleeve pipe 8.3 of silicon carbide material is positioned at Way out, so the outlet of 8.3 that is to say the outlet of outer cylinder body 8.Air-distributing disc 9 is L with the distance of the outlet of outer cylinder body 8, L=160mm in the middle of the present embodiment.All the other structures of the present embodiment are identical with embodiment two.
Embodiment four, as shown in Figure 6, in the middle of the present embodiment, Secondary Air is cut off, and namely secondary air inlet does not have combustion air to enter.This is a kind of using method of the technology condition in order to meet some kiln.The structure of the present embodiment is identical with embodiment three.
In addition, in the middle of above each embodiment, airduct 5 can be made up of two or more part combination.
Above in the middle of each embodiment, outer cylinder body 8 can be made up of two or more part combination.
Above in the middle of each embodiment, gas spray head 10 both can together with air-distributing disc 9 have adopted and had been welded and fixed, and also can adopt to be threaded or other modes connect, and gas spray head 10 also can adopt with Gas Pipe 1 and to weld or other connected modes are connected.
In the middle of above embodiment four, the using method that Secondary Air is cut-off, also can be applied in the middle of embodiment one to two.
In the middle of above embodiment two, gas spray head 10 can have the gas jet orifice 11 of the wind jet that directive sprays from special-shaped air vent 12, also can have the gas jet orifice 11 of the wind jet that a part of not directive sprays from special-shaped air vent 12.Under some service condition, also can make gas jet orifice 11 not wind jets of spraying from special-shaped air vent 12 of directive.
Certainly; here several preferably embodiment is only listed; but embodiment of the present utility model is not restricted to the described embodiments; change, the modification done under other any does not deviate from Spirit Essence of the present utility model and principle, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (11)
1. twice air-intaking gas combustor, the center of burner is provided with Gas Pipe, blast tube is had within Gas Pipe, the port of export of blast tube is provided with gas spray head, gas spray head there is gas jet orifice, outside Gas Pipe, has airduct, it is characterized in that: once wind inlet on airduct, once wind passage between airduct and Gas Pipe, the port of export of First air passage is provided with the air-distributing disc for air distribution; Outside airduct, there is outer cylinder body, outer cylinder body has secondary air inlet, between outer cylinder body and airduct, have secondary air channel.
2. twice air-intaking gas combustor according to claim 1, is characterized in that: be also provided with air duct and aerofoil in the outside of the outlet section of airduct; Aerofoil is connected with airduct and air duct respectively, and the port of export of close airduct; Airduct, between air duct and aerofoil, form air duct inner chamber, between air duct inner chamber and First air passage, have intercommunicating pore; Total total at least two spray air holes on aerofoil and/or on air duct.
3. twice air-intaking gas combustor according to claim 1 and 2, is characterized in that: on air-distributing disc, have air vent.
4. twice air-intaking gas combustor according to claim 3, is characterized in that: on the face of cylinder, periphery of air-distributing disc, have ventilation slot.
5. twice air-intaking gas combustor according to claim 3, is characterized in that: on air-distributing disc, have air vent refer to that air vent is all comprise special-shaped air vent in special-shaped air vent or air vent; Described special-shaped air vent is H in the full-size of radial direction, and the full-size in the direction perpendicular to radial direction is W, if the scope of R=H/W, R is: 1.29≤R≤3.
6. twice air-intaking gas combustor according to claim 5, is characterized in that: the gas jet orifice having the wind jet that directive sprays from special-shaped air vent in gas spray head.
7. twice air-intaking gas combustor according to claim 4, is characterized in that: air-distributing disc has at least two discharge areas be greater than 8mm
2air vent, be greater than 8mm at these discharge areas
2air vent in the middle of, have at least two to have following feature: in the fan-shaped range of its air-distributing disc present separately, do not have the ventilation slot on the face of cylinder, air-distributing disc periphery.
8. twice air-intaking gas combustor according to claim 2, it is characterized in that: the spray air holes having following feature on aerofoil: to be the scope of the angle of θ, θ be the angle between the parallel lines of the axis of its center line and burner: 0≤θ≤30 °.
9. twice air-intaking gas combustor according to claim 1 and 2, is characterized in that: to be the scope of L, L be the distance that air-distributing disc and outer cylinder body export: 0≤L≤170mm.
10. twice air-intaking gas combustor according to claim 1 and 2, it is characterized in that: be provided with support in the middle of described secondary air channel, described support and airduct connect into as a whole, are matched in clearance between support and outer cylinder body.
11. twice air-intaking gas combustor according to claim 1 and 2, is characterized in that: to be the scope of D, D be for the internal diameter of the outlet of airduct: 35mm≤D≤72mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420785420.0U CN204329013U (en) | 2014-12-12 | 2014-12-12 | A kind of twice air-intaking gas combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420785420.0U CN204329013U (en) | 2014-12-12 | 2014-12-12 | A kind of twice air-intaking gas combustor |
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| Publication Number | Publication Date |
|---|---|
| CN204329013U true CN204329013U (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420785420.0U Expired - Fee Related CN204329013U (en) | 2014-12-12 | 2014-12-12 | A kind of twice air-intaking gas combustor |
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| Country | Link |
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| CN (1) | CN204329013U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797406A (en) * | 2021-02-25 | 2021-05-14 | 佛山市金之鑫环保科技有限公司 | High-speed energy-saving environment-friendly gas burner and combustion method |
-
2014
- 2014-12-12 CN CN201420785420.0U patent/CN204329013U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797406A (en) * | 2021-02-25 | 2021-05-14 | 佛山市金之鑫环保科技有限公司 | High-speed energy-saving environment-friendly gas burner and combustion method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20211212 |