CN103486590A - Air-gas mixer suitable for burner - Google Patents
Air-gas mixer suitable for burner Download PDFInfo
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- CN103486590A CN103486590A CN201310472333.XA CN201310472333A CN103486590A CN 103486590 A CN103486590 A CN 103486590A CN 201310472333 A CN201310472333 A CN 201310472333A CN 103486590 A CN103486590 A CN 103486590A
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- 239000000203 mixture Substances 0.000 claims abstract description 30
- 239000003034 coal gas Substances 0.000 claims abstract description 16
- 239000008246 gaseous mixture Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 abstract description 5
- 238000005496 tempering Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 35
- 230000000694 effects Effects 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention relates to an air-gas mixer suitable for a burner, which comprises a hollow mixture body (1), wherein an air inlet (3), a gas inlet (5) and a mixed gas outlet are arranged on the mixture body (1), a hollow air control body (2) is arranged in the mixture body (1), an inlet of the air control body (2) is connected with the air inlet (3), an outlet of the air control body (2) is positioned at the front end of the gas inlet (5), a gap is reserved between the outlet of the air control body (2) and the inner wall of the mixture body (1), the inlet of the air control body (2) is a tapered cavity, and the outlet of the mixed gas is a tapered cavity. The mixer of the invention is adopted to premix air and coal gas, thus ensuring the mixing uniformity of the air and the coal gas, and playing a role in preventing tempering while reducing the pressure of the coal gas in front of the required burner.
Description
Technical field
The present invention relates to a kind of space gas blender that is applicable to burner.
Background technology
The line style burner is a kind of novel burner that adopts premixed combustion technology.Since coming out, at industrial circle, be widely used, generally be applied to the lower occasion of heated object target heating-up temperature, as all application to some extent of the fields such as environment heating, air circulation heating, workpiece heating, industrial packaging, welding, the logical heating apparatus of the band steel of typical applications before as entry loop, outlet looping and the crimping machine of large-size horizontal continuous annealing furnace.Single burner power generally, between 10～100kW, can carry out the burner length adjustment according to the difference of demand for heat, and the burner power of unit length is generally at 0.3～1kW/cm.
The line style burner adopts premixed combustion technology, the first premix of air and combustion gas, after-combustion.Generally do not adopt independent blender to carry out premix, but adopt the straight-through mode of mixing of space gas pipeline to carry out premix, after mixing, need one section gaseous mixture pipeline growing to guarantee mixing uniformity.General line style burner can only be on shorter length (burner length is less than 700mm) guarantee the uniformity of flame shape, easily produce the inconsistent defect of flame height after burner length lengthens, and do not adopt line style burner easy tempering when small-power is burnt of independent blender.
Summary of the invention
The technical problem to be solved in the present invention is, the space gas that is applicable to burner blender is provided, and can guarantee that air and coal gas mix on shorter pipeline.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of space gas blender that is applicable to burner, the mixture that comprises hollow, described mixture is provided with air inlet, gas inlet and mixed gas outlet, described mixture inside is provided with the control wind body of hollow, the entrance of described control wind body is connected with described air inlet, the outlet of described control wind body is positioned at the front end of gas inlet, gapped between the outlet of described control wind body and the inwall of described mixture, the cavity that the entrance of described control wind body is convergent, the cavity that the outlet of described gaseous mixture is convergent.
In the space gas blender that is applicable to burner of the present invention, the length of described control wind body is greater than the internal diameter of gas inlet, and the internal diameter size of control wind body is 1/2～3/4 of its external diameter size.
In the space gas blender that is applicable to burner of the present invention, also be provided with the first pressure valve installing hole on described mixture, in described the first pressure valve installing hole, the pressure valve is installed, described pressure valve is connected with air gauge.
In the space gas blender that is applicable to burner of the present invention, also be provided with standby pressure valve installing hole on described mixture, in described standby pressure valve installing hole, plug is installed.
In the space gas blender that is applicable to burner of the present invention, described air inlet is connected with air pipe line, and described air pipe line is provided with air hand valve.
In the space gas blender that is applicable to burner of the present invention, described gas inlet is connected with gaspipe line, and described gaspipe line is provided with coal gas hand valve and electromagnetic valve.
In the space gas blender that is applicable to burner of the present invention, described mixed gas outlet is connected with the gaseous mixture pipeline.
Implement the space gas blender that is applicable to burner of the present invention, there is following beneficial effect:
1, adopt blender of the present invention to carry out air and coal gas premix, guaranteed the mixing uniformity of space gas;
2, the inner Formation cross-section of mixture cavity is trapezoidal refluence structure, when pressure-air sprays by control wind body spout, due to Venturi effect, form a negative pressuren zone in the interlayer of mixture cavity inside, coal gas is entered mixed gas passage by trapezoidal refluence structure by injection, produce good mixed effect, before reducing required burner, in gas pressure, also can play the effect that prevents tempering;
3, adopt modularized design, structure wants simple compact than common premix burner space gas pipeline, is convenient to process and assemble.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation that the present invention is applicable to the space gas blender of burner;
Fig. 2 is that the present invention is applicable to the structural representation that the space gas blender of burner is connected with pipeline;
Fig. 3 is the front view of automatic ignition line style burner;
Fig. 4 is the side view of automatic ignition line style burner.
The specific embodiment
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
As shown in Figure 1, the space gas blender that is applicable to burner of the present invention comprises the mixture 1 of hollow, and mixture 1 is provided with air inlet 3, gas inlet 5 and mixed gas outlet.
Blender carries out air and coal gas premix, can guarantee that air and coal gas mix on shorter pipeline.The present invention adopts modularized design, and structure wants simple compact than common premix burner space gas pipeline, is convenient to process and assemble.
Further, the length of control wind body 2 is greater than the internal diameter of gas inlet, and the internal diameter size of control wind body 2 is 1/2～3/4 of its external diameter size, can further improve the injection effect of coal gas.In a preferred embodiment, the internal diameter size of control wind body 2 is 5/8 of its external diameter size.Mixture 1 and control wind body 2 can carry out similarly dwindling or amplifying according to the ability of be suitable for burner.
Further, also be provided with the first pressure valve installing hole on mixture 1, in the first pressure valve installing hole, pressure valve 11 be installed, pressure valve 11 is connected with air gauge.
Further, standby pressure valve installing hole can also be set on mixture 1, in standby pressure valve installing hole, plug 6 be installed.
As shown in Figure 2, further, air inlet 3 is connected with air pipe line 15, and air pipe line 15 is provided with air hand valve 16.Gas inlet 5 is connected with gaspipe line 12, and gaspipe line 12 is provided with coal gas hand valve 14 and electromagnetic valve 13.Mixed gas outlet is connected with gaseous mixture pipeline 4.By space gas flow and the proportioning of air hand valve 16 and the single burner of coal gas hand valve 14 capable of regulating, to reach more satisfactory combustion efficiency.
For the automatic ignition line style burner of blender of the present invention is installed, it also comprises uncovered plenum chamber 8, pneumatic panel 7, spout 9 and igniter 10 as shown in Figure 3, Figure 4.Uncovered plenum chamber 8 is connected with gaseous mixture pipeline 4, and pneumatic panel 7 is arranged on uncovered plenum chamber 8 inside, and spout 9 is arranged on uncovered plenum chamber 8 tops, by igniter 10 igniting.
Implementation process of the present invention is: automatic ignition line style burner requires to install location according to application scenario, first air hand valve 16 is adjusted to correct position before the burner igniting, when controller is received ignition order, control the high voltage package electric discharge and make the electrode sparking, electromagnetic valve 13 on gaspipe line 12 is opened simultaneously, coal gas passes into burner, with the combustion air mixed combustion that passes into burner always, after flame stabilization, by electrode, returns to the detection electric current.When burner is received flame-out signal, close the electromagnetic valve 13 on gaspipe line 12, fray-out of flame, combustion air continues to pass into the effect of playing the cooling protection burner.This automatic ignition line style burner can obtain a kind of special strip flame, when can realize the relatively high power burning, guarantee rigidity and the stability of flame, flame possesses good uniformity consistency on the burner length direction, and the long-range pulse that can realize burner controls to guarantee the accurately adjustable of heating-up temperature, low-temperature heat and the Field of Heat-treatment that therefore can be widely used in carrying out pulse-combustion control.
The above is described embodiments of the invention by reference to the accompanying drawings; but the present invention is not limited to the above-mentioned specific embodiment; the above-mentioned specific embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away from the scope situation that aim of the present invention and claim protect, also can make a lot of forms, within these all belong to protection of the present invention.
Claims (7)
1. a space gas blender that is applicable to burner, it is characterized in that, the mixture (1) that comprises hollow, described mixture (1) is provided with air inlet (3), gas inlet (5) and mixed gas outlet, described mixture (1) inside is provided with the control wind body (2) of hollow, the entrance of described control wind body (2) is connected with described air inlet (3), the outlet of described control wind body (2) is positioned at the front end of gas inlet (5), gapped between the inwall of the outlet of described control wind body (2) and described mixture (1), the cavity that the entrance of described control wind body (2) is convergent, the cavity that the outlet of described gaseous mixture is convergent.
2. the space gas blender that is applicable to burner according to claim 1, is characterized in that, the length of described control wind body (2) is greater than the internal diameter of gas inlet (5), and the internal diameter size of control wind body (2) is 1/2～3/4 of its external diameter size.
3. the space gas blender that is applicable to burner according to claim 1, it is characterized in that, also be provided with the first pressure valve installing hole on described mixture (1), in described the first pressure valve installing hole, pressure valve (11) be installed, described pressure valve (11) is connected with air gauge.
4. the space gas blender that is applicable to burner according to claim 1, is characterized in that, also is provided with standby pressure valve installing hole on described mixture (1), in described standby pressure valve installing hole, plug (6) is installed.
5. the space gas blender that is applicable to burner according to claim 1, is characterized in that, described air inlet (3) is connected with air pipe line (15), and described air pipe line (15) is provided with air hand valve (16).
6. the space gas blender that is applicable to burner according to claim 1, is characterized in that, described gas inlet (5) is connected with gaspipe line (12), and described gaspipe line (12) is provided with coal gas hand valve (14) and electromagnetic valve (13).
7. the space gas blender that is applicable to burner according to claim 1, is characterized in that, described mixed gas outlet is connected with gaseous mixture pipeline (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310472333.XA CN103486590A (en) | 2013-10-11 | 2013-10-11 | Air-gas mixer suitable for burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310472333.XA CN103486590A (en) | 2013-10-11 | 2013-10-11 | Air-gas mixer suitable for burner |
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| Publication Number | Publication Date |
|---|---|
| CN103486590A true CN103486590A (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310472333.XA Pending CN103486590A (en) | 2013-10-11 | 2013-10-11 | Air-gas mixer suitable for burner |
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| CN (1) | CN103486590A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52112130A (en) * | 1976-03-17 | 1977-09-20 | Matsushita Electric Ind Co Ltd | Gas combustion controller |
| CN201454438U (en) * | 2009-08-13 | 2010-05-12 | 上海新同惠自动化系统有限公司 | Gas mixer |
| CN202835371U (en) * | 2012-09-07 | 2013-03-27 | 彩虹集团电子股份有限公司 | Safe anti-explosion fuel gas mixer |
| CN103343971A (en) * | 2013-07-19 | 2013-10-09 | 中冶南方(武汉)威仕工业炉有限公司 | Automatic ignition linear burner |
| CN203501183U (en) * | 2013-10-11 | 2014-03-26 | 中冶南方(武汉)威仕工业炉有限公司 | Air-gas mixer suitable for burner |
-
2013
- 2013-10-11 CN CN201310472333.XA patent/CN103486590A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52112130A (en) * | 1976-03-17 | 1977-09-20 | Matsushita Electric Ind Co Ltd | Gas combustion controller |
| CN201454438U (en) * | 2009-08-13 | 2010-05-12 | 上海新同惠自动化系统有限公司 | Gas mixer |
| CN202835371U (en) * | 2012-09-07 | 2013-03-27 | 彩虹集团电子股份有限公司 | Safe anti-explosion fuel gas mixer |
| CN103343971A (en) * | 2013-07-19 | 2013-10-09 | 中冶南方(武汉)威仕工业炉有限公司 | Automatic ignition linear burner |
| CN203501183U (en) * | 2013-10-11 | 2014-03-26 | 中冶南方(武汉)威仕工业炉有限公司 | Air-gas mixer suitable for burner |
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Application publication date: 20140101 |