CN103672894B - Flat-flame combustion mechanism - Google Patents
Flat-flame combustion mechanism Download PDFInfo
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- CN103672894B CN103672894B CN201310612540.0A CN201310612540A CN103672894B CN 103672894 B CN103672894 B CN 103672894B CN 201310612540 A CN201310612540 A CN 201310612540A CN 103672894 B CN103672894 B CN 103672894B
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- tube connector
- combustion mechanism
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- air inlet
- combustion
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Abstract
The present invention discloses Flat-flame combustion mechanism, comprise premix cavity and combustion mechanism, the side of described premix cavity is connected with combustion mechanism by tube connector, the opposite side of described premix cavity is provided with air inlet pipe and two air inlets, air inlet pipe is arranged on the centre of two air inlets, is provided with hemispherical groove in premix cavity, and the bottom of hemispherical groove is communicated with tube connector, air inlet pipe, just to tube connector, the inwall of described hemispherical groove also has multiple helicla flute; Multiple helicla flutes that hemispherical groove inwall is arranged can make air and combustion gas turbulization, and both are mixed, and burn fully, be conducive to the efficiency of combustion improving combustion gas when ensureing that mist enters combustion mechanism after by tube connector.
Description
Technical field
The present invention relates to a kind of burner, specifically refer to Flat-flame combustion mechanism.
Background technology
Burner is also combustor, can be divided into oil burner and gas burner according to fuel; Kiln burner and boiler-burner is divided into according to use object; Industrial burner, civilian burner and special kind firing device can be divided into according to application.Wherein oil burner is divided into light oil (as diesel oil) and heavy oil burner (as used oil), and gas burner is divided into neat gas burner, gas burner, town gas burner, biogas burner etc.
In cracking petroleum hydrocarbon technique, need to heat tube furnace, the burner heating of tradition often makes thermal stress suffered by each several part of tube furnace different, easily cause the overheated of pipe furnace local, and then accelerate the loss of tube furnace, be particularly easy to produce combustion gas tempering or explosion phenomenon because temperature is too high at the head of burner; And when logical combustion gas, combustion gas mixes uneven with air, the efficiency of combustion of combustion gas is reduced.
Summary of the invention
The object of the present invention is to provide Flat-flame combustion mechanism, solve the problem that traditional burner combustion is insufficient, improve the efficiency of combustion of burner.
Object of the present invention is achieved through the following technical solutions:
Flat-flame combustion mechanism, comprise premix cavity and combustion mechanism, the side of described premix cavity is connected with combustion mechanism by tube connector, the opposite side of described premix cavity is provided with air inlet pipe and two air inlets, air inlet pipe is arranged on the centre of two air inlets, is provided with hemispherical groove in premix cavity, and the bottom of hemispherical groove is communicated with tube connector, air inlet pipe, just to tube connector, the inwall of described hemispherical groove also has multiple helicla flute.When the present invention uses, combustion gas enters into premix cavity by air inlet pipe, also enter into hybrid chamber and combustion gas by the air inlet leaked-in air at the upper and lower two ends of air inlet pipe to carry out first time and mix, mixed gas enters into tube connector through hemispherical groove, finally in combustion mechanism, air mixes again with combustion gas, and after fully mixing for twice, combustion gas is lighted to realize the heating of bomb furnace; Multiple helicla flutes that hemispherical groove inwall is arranged can make air and combustion gas turbulization, and both are mixed, and burn fully, be conducive to the efficiency of combustion improving combustion gas when ensureing that mist enters combustion mechanism after by tube connector.
Described combustion mechanism comprises burning cavity and nozzle, tube connector is connected with burning cavity, in burning cavity, be provided with rectangle hybrid chamber, nozzle is arranged on the end of tube connector and is communicated with rectangle hybrid chamber, and the end, one end of burning cavity has multiple burning gallery.Nozzle is placed on the bottom of burning cavity, one end of nozzle is communicated with the end of tube connector, its other end is communicated with rectangle hybrid chamber, mist enters into rectangle hybrid chamber and carries out second time mixing under the jet-action of nozzle, reach certain ratio in the amount of air and combustion gas and after being thoroughly mixed, lighted by burning gallery combustion gas, acting on pipe furnace equably, the local heating avoiding occurring pipe furnace is uneven and cause stress damage, extends the service life of pipe furnace.
Described burning gallery comprises the straight way and taper road that are interconnected, and straight way is communicated with rectangle hybrid chamber, and taper road is in communication with the outside, and described taper road inwall is provided with groove.At nozzle, mixed for first time gas injection is entered in rectangle hybrid chamber, mix again between combustion gas with air, the gas of secondary mixing enters in burning gallery along with air-flow, after the acceleration of straight way, the gas of secondary mixing enters into taper road, the minimum diameter in taper road is identical with the internal diameter of straight way, and the gas of therefore secondary mixing is evenly dispersed under the effect of groove, makes combustion gas be lighted rear Thorough combustion.
The diameter of described tube connector increases gradually along airintake direction.One end of tube connector is connected with conical pipe, the other end of tube connector is connected with nozzle, in conical pipe, the flow velocity of mist is very fast gradually, and the diameter of tube connector increases gradually along airintake direction, and then slow down the flow velocity of mist, reduce mist to the impact of nozzle, contribute to the service life of prolonging nozzle.
Described air inlet is provided with control valve.The control valve arranged can in real time adjusting air inflow quantity and intake according to actual needs, the ratio of the combustion gas in mist and air is made to remain in certain ratio, ensure that mist has higher efficiency of combustion in combustion mechanism, the regulation and control that pipe furnace is heated are more flexible.
The present invention compared with prior art, has following advantage and beneficial effect:
1, Flat-flame combustion mechanism of the present invention, comprise premix cavity and combustion mechanism, the side of described premix cavity is connected with combustion mechanism by tube connector, the opposite side of described premix cavity is provided with air inlet pipe and two air inlets, air inlet pipe is arranged on the centre of two air inlets, is provided with hemispherical groove in premix cavity, and the bottom of hemispherical groove is communicated with tube connector, air inlet pipe, just to tube connector, the inwall of described hemispherical groove also has multiple helicla flute; Multiple helicla flutes that hemispherical groove inwall is arranged can make air and combustion gas turbulization, and both are mixed, and burn fully, be conducive to the efficiency of combustion improving combustion gas when ensureing that mist enters combustion mechanism after by tube connector;
2, Flat-flame combustion mechanism of the present invention, at nozzle, mixed for first time gas injection is entered in rectangle hybrid chamber, mix again between combustion gas with air, the gas of secondary mixing enters in burning gallery along with air-flow, after the acceleration of straight way, the gas of secondary mixing enters into taper road, and the minimum diameter in taper road is identical with the internal diameter of straight way, therefore the gas of secondary mixing is evenly dispersed under the effect of groove, makes combustion gas be lighted rear Thorough combustion;
3, Flat-flame combustion mechanism of the present invention, nozzle is placed on the bottom of burning cavity, one end of nozzle is communicated with the end of tube connector, its other end is communicated with rectangle hybrid chamber, mist enters into rectangle hybrid chamber and carries out second time mixing under the jet-action of nozzle, certain ratio is reached and after being thoroughly mixed in the amount of air and combustion gas, lighted by burning gallery combustion gas, act on equably on pipe furnace, the local heating avoiding occurring pipe furnace is uneven and cause stress damage, extends the service life of pipe furnace.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide the further understanding to the embodiment of the present invention, forms a application's part, does not form the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is structural representation of the present invention;
Mark and corresponding parts title in accompanying drawing:
1-premix cavity, 2-tube connector, 3-air inlet pipe, 4-air inlet, 5-hemispherical groove, 6-helicla flute, 7-burn cavity, 8-nozzle, 9-rectangle hybrid chamber, 10-straight way, 11-taper road, 12-air control valve, 13-groove.
Detailed description of the invention
Clearly understand for making the object, technical solutions and advantages of the present invention, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment of the present invention and explanation thereof are only for explaining the present invention, not as a limitation of the invention.
Embodiment
As shown in Figure 1, Flat-flame combustion mechanism of the present invention, comprise premix cavity 1 and combustion mechanism, the side of described premix cavity 1 is connected with combustion mechanism by tube connector 2, the opposite side of described premix cavity 1 is provided with air inlet pipe 3 and two air inlets 4, air inlet pipe 3 is arranged on the centre of two air inlets 4, hemispherical groove 5 is installed in premix cavity 1, the bottom of hemispherical groove 5 is communicated with tube connector 2, air inlet pipe 2, just to tube connector, the inwall of described hemispherical groove 5 also has multiple helicla flute 6; Described combustion mechanism comprises burning cavity 7 and nozzle 8, tube connector 2 is connected with burning cavity 7, in burning cavity 7, be provided with rectangle hybrid chamber 9, nozzle 8 is arranged on the end of tube connector 2 and is communicated with rectangle hybrid chamber 9, and the end, one end of burning cavity 7 has multiple burning gallery; Described burning gallery comprises the straight way 10 and taper road 11 that are interconnected, and straight way 10 is communicated with rectangle hybrid chamber 9, and taper road 11 is in communication with the outside, and described taper road 11 inwall is provided with groove 13.
When the present invention uses, combustion gas enters into premix cavity 1 by air inlet pipe 3, also enter into premixed cavity 1 and combustion gas by air inlet 4 leaked-in air at air inlet pipe about 3 two ends to carry out first time and mix, mixed gas enters into tube connector 2 through hemispherical groove 5, nozzle 8 is placed on the bottom of burning cavity 7, one end of nozzle 8 is communicated with the end of tube connector 2, its other end is communicated with rectangle hybrid chamber 9, mist enters into rectangle hybrid chamber 9 and carries out second time mixing under the jet-action of nozzle 8, certain ratio is reached and after being thoroughly mixed in the amount of air and combustion gas, lighted by burning gallery combustion gas, act on equably on pipe furnace, the local heating avoiding occurring pipe furnace is uneven and cause stress damage, extend the service life of pipe furnace, at nozzle 8, mixed for first time gas injection is entered in rectangle hybrid chamber 9, mix again between combustion gas with air, the gas of secondary mixing enters in burning gallery along with air-flow, after the acceleration of straight way, the gas of secondary mixing enters into taper road 11, the minimum diameter in taper road 11 is identical with the internal diameter of straight way 10, and the gas of therefore secondary mixing is evenly dispersed under the effect of groove 13, makes combustion gas be lighted rear Thorough combustion, multiple helicla flutes 6 that hemispherical groove 5 inwall is arranged can make air and combustion gas turbulization, and both are mixed, and burn fully, be conducive to the efficiency of combustion improving combustion gas when ensureing that mist enters combustion mechanism after by tube connector 2.
Described air inlet 4 is provided with air control valve 12, intake can be regulated in real time according to actual needs, the ratio of the combustion gas in mist and air is made to remain in certain ratio, ensure that mist has higher efficiency of combustion in combustion mechanism, the regulation and control that pipe furnace is heated are more flexible.
Above-described detailed description of the invention; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; the protection domain be not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. Flat-flame combustion mechanism, comprise premix cavity (1) and combustion mechanism, the side of described premix cavity (1) is connected with combustion mechanism by tube connector (2), it is characterized in that: on the opposite side of described premix cavity (1), be provided with air inlet pipe (3) and two air inlets (4), air inlet pipe (3) is arranged on the centre of two air inlets (4), hemispherical groove (5) is installed in premix cavity (1), the planar base of hemispherical groove (5) is communicated with tube connector (2), air inlet pipe (3) is just to tube connector (2), the inwall of described hemispherical groove (5) also has multiple helicla flute (6).
2. Flat-flame combustion mechanism according to claim 1, it is characterized in that: described combustion mechanism comprises burning cavity (7) and nozzle (8), tube connector (2) is connected with burning cavity (7), rectangle hybrid chamber (9) is provided with in burning cavity (7), nozzle (8) is arranged on the end of tube connector (2) and is communicated with rectangle hybrid chamber (9), and the end, one end of burning cavity (7) has multiple burning gallery.
3. Flat-flame combustion mechanism according to claim 2, it is characterized in that: described burning gallery comprises the straight way (10) and taper road (11) that are interconnected, straight way (10) is communicated with rectangle hybrid chamber (9), taper road (11) is in communication with the outside, and described taper road (11) inwall is provided with groove (13).
4. Flat-flame combustion mechanism according to claim 1, is characterized in that: the diameter of described tube connector (2) increases gradually along airintake direction.
5. Flat-flame combustion mechanism according to claim 1, is characterized in that: on described air inlet (4), be also provided with air control valve (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310612540.0A CN103672894B (en) | 2013-11-28 | 2013-11-28 | Flat-flame combustion mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310612540.0A CN103672894B (en) | 2013-11-28 | 2013-11-28 | Flat-flame combustion mechanism |
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| Publication Number | Publication Date |
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| CN103672894A CN103672894A (en) | 2014-03-26 |
| CN103672894B true CN103672894B (en) | 2016-02-03 |
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| CN201310612540.0A Active CN103672894B (en) | 2013-11-28 | 2013-11-28 | Flat-flame combustion mechanism |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH109516A (en) * | 1996-06-19 | 1998-01-16 | Sanyo Electric Co Ltd | Premixing gas burner of flat flame type |
| CN2546752Y (en) * | 2002-01-07 | 2003-04-23 | 李忠芳 | Hollow annular sandwich type gas burner |
| CN2632503Y (en) * | 2003-07-04 | 2004-08-11 | 湖南吉祥燃烧器股份有限公司 | Low pressure premixed high performance energy saving and environment protecting gas burner with flat flame and less NOx exhaust |
| CN101220955A (en) * | 2006-11-08 | 2008-07-16 | 通用电气公司 | Method and apparatus for enhanced mixing in premixing devices |
| CN201628221U (en) * | 2010-04-16 | 2010-11-10 | 毛羽 | Novel side wall gas burner |
-
2013
- 2013-11-28 CN CN201310612540.0A patent/CN103672894B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH109516A (en) * | 1996-06-19 | 1998-01-16 | Sanyo Electric Co Ltd | Premixing gas burner of flat flame type |
| CN2546752Y (en) * | 2002-01-07 | 2003-04-23 | 李忠芳 | Hollow annular sandwich type gas burner |
| CN2632503Y (en) * | 2003-07-04 | 2004-08-11 | 湖南吉祥燃烧器股份有限公司 | Low pressure premixed high performance energy saving and environment protecting gas burner with flat flame and less NOx exhaust |
| CN101220955A (en) * | 2006-11-08 | 2008-07-16 | 通用电气公司 | Method and apparatus for enhanced mixing in premixing devices |
| CN201628221U (en) * | 2010-04-16 | 2010-11-10 | 毛羽 | Novel side wall gas burner |
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| Publication number | Publication date |
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| CN103672894A (en) | 2014-03-26 |
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Effective date of registration: 20160624 Address after: 610000 Sichuan city of Chengdu province high tech Zone sub Road No. 88 2 10 storey building No. 1002 Patentee after: Sichuan Xingzhi Zhihui Intellectual Property Operation Co.,Ltd. Address before: 610000 Sichuan city of Chengdu province high tech Zone Shiyang Industrial Park Patentee before: CHENGDU KESHENG PETROLEUM TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20230109 Address after: No. 147, Qingjiang Middle Road, Qingbaijiang District, Chengdu, Sichuan 610000 (in Chengdu Europe Entrepreneurship Yard) Patentee after: Chengdu Zhirong Zhichuang Intellectual Property Operation Co.,Ltd. Address before: 610000 No. 10, 2 2, 88 Jiao Zi Road, Chengdu high tech Zone, Sichuan. Patentee before: Sichuan Xingzhi Zhihui Intellectual Property Operation Co.,Ltd. |
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