CN101949539A - Wedge-shaped air preheating combustor - Google Patents
Wedge-shaped air preheating combustor Download PDFInfo
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- CN101949539A CN101949539A CN2010105085192A CN201010508519A CN101949539A CN 101949539 A CN101949539 A CN 101949539A CN 2010105085192 A CN2010105085192 A CN 2010105085192A CN 201010508519 A CN201010508519 A CN 201010508519A CN 101949539 A CN101949539 A CN 101949539A
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- pipe
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- burner
- internal combustion
- inner cavity
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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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Abstract
The invention discloses a wedge-shaped air preheating combustor. The combustor is provided with a main cylindrical combustion pipe, wherein an internal combustion nozzle is coaxially arranged in the inner cavity of the main combustion pipe; the inner cavity at one end of the internal combustion nozzle is gradually retracted and the end of the inner cavity at one end of the internal combustion nozzle is communicated with the inner cavity of the main combustion pipe; the other end of the internal combustion nozzle is hermetically connected with the end part of the main combustion pipe; a gas connecting pipe communicated with the inner cavity of the internal combustion nozzle is arranged on the sealed end part; an air inlet pipe is radially communicated with the external wall of the main combustion pipe close to the closed end; a plurality of air inlet holes are reserved on the external wall of the internal combustion nozzle far away from the closed end; the air inlet pipe is communicated with the inner cavity of the internal combustion nozzle through the main combustion pipe, and an interlayer and the air inlet holes of the internal combustion nozzle; and an installation flange is obliquely connected with the external wall of the main combustion pipe. An included angle of 40 to 45 degrees is formed between the installation flange and the axis of the main combustion pipe. When the combustor is arranged on a round industrial furnace, the flame sprayed from the internal combustion nozzle can enter along the tangential direction of the internal cavity of the furnace to fully stir the air flow in the furnace cavity, so that the temperature field of the furnace is uniform.
Description
Technical field:
The present invention relates to a kind of preheated air wedge burner, the particularly a kind of industry heating of perhydro bell furnace, annealing furnace, metal smelting furnace and burner of fusing of being used for.
Background technology:
For the burner that uses in the existing industrial furnace, the central axis of burner becomes vertical direction with mounting flange, is difficult to allow the flame of burner enter along the tangential direction of industrial furnace, and the air-flow in can't the disturbance furnace chamber can not be realized the uniformity in its temperature field.Burners in prior is difficult for igniting under the cold conditions situation, perhaps flame-out easily under hot situation.Burner is the horn mouth design in the burners in prior, and the shape of flame is not controlled, and flame speed is lower, is unfavorable for flowing of the interior high temperature gas flow of industrial furnace, thereby causes the inhomogeneous of temperature.The thermal efficiency of burners in prior is lower, and the energy has been caused waste.
Summary of the invention:
For overcoming the defective of prior art, the object of the present invention is to provide a kind of preheated air wedge burner, it is easy for installation, can reduce the energy consumption and the smog discharge temperature of industrial furnace effectively.At normal temperatures reliably the igniting, and after the combustion air preheating until 500 degrees centigrade can both be stable burning.
Technical solution problem of the present invention adopts following technical scheme:
Preheated air wedge burner, the main pipe that burns with tubular, be coaxially arranged with interior burner at the described main inner chamber that burns pipe, the progressive gathering of an end inner chamber of burner and communicate in described with the inner chamber of its end with described main burning pipe, the other end of interior burner is tightly connected with main end of burning pipe, and the sealing end is provided with the gas connection pipe that communicates with described interior burner inner chamber; Burn near blind end main that radial communication has air intake duct on the outer wall of pipe, offer some air admission holes on the outer wall away from the interior burner of blind end, described air inlet pipe communicates with the inner chamber of interior burner with the interlayer and the described air admission hole of interior burner by the main pipe that burns; Tilt to be connected with mounting flange at the described main outer wall that burns pipe.
Be provided with ignitor and ultraviolet detector in described main blind end end of burning pipe.
The angle that forms between the axis of described mounting flange and main burning pipe is 40-50 °.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, preheated air wedge burner of the present invention is realized direct-fire or igniting indirectly, can use 500 degrees centigrade warm-up combustion-supporting air and do not influence the operate as normal of burner, even combustion system starts at normal temperatures, this burner also can successfully be put to fight and keep stable burning.
2, the interior burner inner chamber of preheated air wedge burner uniqueness of the present invention draws in to design and can improve the flame speed of ejection, and flame speed can reach 80-120m/s, guarantees that the air-flow in the industrial furnace fully mixes, and realizes the temperature homogeneity in the industrial furnace.
3, use ion induction flame to detect or the detection of UV ultraviolet flame.
4, adopt flange to be connected with body of heater, be convenient to the installation and maintenance maintenance.
5, burner can directly big fire burns under cold conditions-need not the preheating burner.
6, design is applicable to high back pressure environment in the furnace chamber.
7, mounting flange and the main axis that burns pipe form 40-45 ° angle, when burner is installed on the circular industrial furnace, the flame of interior burner ejection can enter along the tangential direction of furnace chamber, the flame of burner ejection can fully stir the air-flow in the furnace chamber in making, realizes the uniformity in its temperature field.
Description of drawings:
Fig. 1 is the structural representation of burner of the present invention.
Number in the figure: the 1 main pipe that burns, 2 mounting flanges, 3 bolts, 4 thermal insulation casings, 5 ignitors, 6 gas connection pipes, 7 ultraviolet detectors, 8 air intake ducts, 9 air admission holes, 10 interior burners.
Below pass through the specific embodiment, and the invention will be further described in conjunction with the accompanying drawings.
The specific embodiment:
Embodiment: in conjunction with Fig. 1, the preheated air wedge burner of present embodiment, the main pipe 1 that burns with tubular, burner 10 in the main inner chamber that burns pipe is coaxially arranged with, one end of interior burner 10 (stretching into main that end that burns in the pipe) the progressive gathering of inner chamber, and this end end of interior burner communicates with the main inner chamber that burns pipe, and the other end of interior burner 10 is tightly connected with main end of burning pipe 1, and the sealing end is provided with the gas connection pipe 6 that communicates with interior burner 10 inner chambers; Burn near blind end main that radial communication has air intake duct 8 on the outer wall of pipe, offer some air admission holes 9 on the outer wall away from the interior burner of blind end, air inlet pipe 8 communicates with the inner chamber of interior burner with the interlayer and the air admission hole 9 of interior burner by the main pipe that burns; Tilt to be connected with mounting flange 2 at the main outer wall that burns pipe 1.Main blind end end of burning pipe 1 is provided with ignitor 5 and ultraviolet detector 7.
The angle that forms between the axis of mounting flange 2 and main burning pipe 1 is 40-50 °, when burner is installed on the circular industrial furnace by mounting flange 2 and bolt 3, the flame of interior burner ejection can enter along the tangential direction of furnace chamber, the flame of burner ejection can fully stir the air-flow in the furnace chamber in making, realizes the uniformity in its temperature field.
In order to bear 500 degrees centigrade preheated air, in the main interlayer that burns between pipe 1 and the interior burner 10, be provided with thermal insulation casing 4, the liner of preheated air thermal insulation casing 4 uses the mullite insulation material, and the hull-skin temperature of assurance burner is not higher than 90 degrees centigrade.In the burner, realize smooth combustion and keep fiery root in the interior burner air admission hole 9 that has on interior burner 10 bodies can partly be introduced combustion air.A large amount of preheated airs and combustion gas are carried out mixed combustion at the main end that burns pipe 1 and interior burner 10.
Operation principle:
Temperature reaches 500 degrees centigrade or higher preheated air and enters the main interlayer that burns pipe 1 and interior burner from air intake duct 8, the part air enters interior burner from air admission hole 9, fuel gas enters interior burner from gas connection pipe 6, part preheating sky and part fuel gas mix certain burning ratio that reaches, and ignitor 5 produces high-voltage sparks mist is lighted.Most of preheated airs and fuel gas carry out mixed combustion at the main end that burns pipe 1 and interior burner 10, and unique interior burner draws design in and improved the flame spouting velocity, and flame speed can reach 80-120m/s.
Claims (3)
1. preheated air wedge burner, it is characterized in that having the main pipe (1) that burns of tubular, be coaxially arranged with interior burner (10) at the described main inner chamber that burns pipe, the progressive gathering of an end inner chamber of burner and communicate in described with the inner chamber of its end with described main burning pipe, the other end of interior burner is tightly connected with main end of burning pipe, and the sealing end is provided with the gas connection pipe (6) that communicates with described interior burner (10) inner chamber; Radial communication has air intake duct (8) on the outer wall of the main burning pipe of close blind end, offer some air admission holes (9) on the outer wall away from the interior burner of blind end, described air inlet pipe (8) communicates with the inner chamber of interior burner with the interlayer and the described air admission hole of interior burner by the main pipe that burns; Tilt to be connected with mounting flange (2) at the described main outer wall that burns pipe.
2. preheated air wedge burner according to claim 1 is characterized in that being provided with ignitor (5) and ultraviolet detector (7) in described main blind end end of burning pipe.
3. preheated air wedge burner according to claim 1 is characterized in that the angle that forms between the axis of described mounting flange (2) and main burning pipe (1) is 40-50 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105085192A CN101949539A (en) | 2010-10-15 | 2010-10-15 | Wedge-shaped air preheating combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105085192A CN101949539A (en) | 2010-10-15 | 2010-10-15 | Wedge-shaped air preheating combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101949539A true CN101949539A (en) | 2011-01-19 |
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ID=43453126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105085192A Pending CN101949539A (en) | 2010-10-15 | 2010-10-15 | Wedge-shaped air preheating combustor |
Country Status (1)
| Country | Link |
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| CN (1) | CN101949539A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078787A (en) * | 1992-05-19 | 1993-11-24 | 黄邦国 | High effective multifunctional burner |
| CN1122370A (en) * | 1994-06-10 | 1996-05-15 | 丹尼利机械厂联合股票公司 | Rotary burner |
| JPH094979A (en) * | 1995-06-15 | 1997-01-10 | Nkk Corp | Combustion burner used in melting furnace in iron making operation |
| CN201363728Y (en) * | 2009-03-06 | 2009-12-16 | 苏和 | Air jet flow self-preheating burner nozzle |
| CN201547782U (en) * | 2009-10-23 | 2010-08-11 | 洛阳瑞昌石油化工设备有限公司 | Reforming box-type furnace side combustion high-temperature pre-heated forced-draft burner |
| CN201827889U (en) * | 2010-10-15 | 2011-05-11 | 陆守祥 | Preheated air wedge-shaped burner |
-
2010
- 2010-10-15 CN CN2010105085192A patent/CN101949539A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078787A (en) * | 1992-05-19 | 1993-11-24 | 黄邦国 | High effective multifunctional burner |
| CN1122370A (en) * | 1994-06-10 | 1996-05-15 | 丹尼利机械厂联合股票公司 | Rotary burner |
| JPH094979A (en) * | 1995-06-15 | 1997-01-10 | Nkk Corp | Combustion burner used in melting furnace in iron making operation |
| CN201363728Y (en) * | 2009-03-06 | 2009-12-16 | 苏和 | Air jet flow self-preheating burner nozzle |
| CN201547782U (en) * | 2009-10-23 | 2010-08-11 | 洛阳瑞昌石油化工设备有限公司 | Reforming box-type furnace side combustion high-temperature pre-heated forced-draft burner |
| CN201827889U (en) * | 2010-10-15 | 2011-05-11 | 陆守祥 | Preheated air wedge-shaped burner |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20110119 |