CN103063703A - Experimental method and apparatus for realizing low-NOX stable combustion of gaseous fuel - Google Patents
Experimental method and apparatus for realizing low-NOX stable combustion of gaseous fuel Download PDFInfo
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- CN103063703A CN103063703A CN2012105745986A CN201210574598A CN103063703A CN 103063703 A CN103063703 A CN 103063703A CN 2012105745986 A CN2012105745986 A CN 2012105745986A CN 201210574598 A CN201210574598 A CN 201210574598A CN 103063703 A CN103063703 A CN 103063703A
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Abstract
The invention especially relates to an experimental method and apparatus for realizing low-NOX stable combustion of a gaseous fuel, which belongs to the field of gaseous fuel combustion experiments. According to the invention, a combustor outlet end face of a combustor is provided with a plurality of individual combustion units of a same structure, and each individual combustion unit is composed of a central fuel nozzle and air nozzles obliquely arranged around the fuel nozzle; in an experiment, dilution fuels like N2 may be mixed with the gaseous fuel to reduce combustion temperature so as to realize low-NOX combustion; the obliquely arranged air nozzles can generate cyclone airflow in virtue of a tangential speed, thereby realizing fine mixing of air and the gaseous fuel; through opening and obstruction of different fuel nozzle channels, different combustion units can individually or combinedly operate, so combustion intensity of integral flame in the combustor can be adjusted; temperature measuring points are arranged on a nozzle outlet wall surface so as to realize on-line temperature measuring; and a flue gas sampling channel is arranged at an outlet of a combustion chamber so as to realize on-line measurement and analysis of tail flue gas.
Description
Technical field
The invention belongs to the gas fuel combustion apparatus field, particularly the low NO of a kind of realization gaseous fuel
XThe experimental technique of smooth combustion and device.
Background technology
Along with the sustainable development of economy, Chinese energy and environmental problem are more and more outstanding, in the face of the present situation that energy average utilization is very low, environmental pollution is serious.Various forms of Clean Coal Power Generating Technologies researchs have obtained very large development in China, and wherein integrated gasification combined cycle plants (IGCC) generation technology is the advanced technology that development potentiality is arranged.Traditional gas turbine is in order to prevent the problem such as tempering, and the diffusion combustion technology is generally adopted in the firing chamber, and the heat that the flame temperature of diffusion combustion is higher and reaction discharges is difficult to pass fast, thereby causes the thermal NO that burns and generate
XDischarge capacity is higher.The gas turbine fuel principal ingredient is carbon monoxide and hydrogen in the IGCC technology, and adiabatic flame temperature is high, the NO that generates in the combustion process
XCan be to environment.On the other hand, along with the widespread use of gas fuel in China, equally also be faced with NO in the combustion of natural gas
XThe problem of pollutant emission.When gaseous fuel (principal ingredient is carbon monoxide and hydrogen) burns, because its chemical property is active and flame temperature is higher, the problem of nozzle wall surface excess Temperature can be caused simultaneously, nozzle can be burnt out when serious.
Patent of invention 200810117256.5 reaches the purpose that reduces the NOx discharging by the dispersion of the method realization flame front of a plurality of micropore burner oils.But correlation technique is very unripe, need to carry out a large amount of related experiment and understand its combustion characteristics, but lack at present the experimental provision of this respect.
Summary of the invention
The objective of the invention is to propose the low NO of a kind of realization gaseous fuel
XThe experimental technique of smooth combustion and device.
Described realization gaseous fuel hangs down NO
XThe experimental technique of smooth combustion is specially: adopt the fuel element of many group rotational flow air parcel gaseous fuels, around the gas fuel nozzle air nozzle is set all in each unit and jointly forms fuel element; By many groups fuel element independent burning separately, reduced local heat load; In the experiment, in fuel, sneak into N
2Fuel diluted reaches the purpose that reduces temperature of combustion, realizes low NO
XBurning; By the opening and stopping up of different fuel nozzle passage, each fuel element can isolated operation or cooperation, thereby adjusts the combustion intensity of whole flame in the burner.
Described realization gaseous fuel hangs down NO
XThe device of smooth combustion comprises burner, firing chamber, fuel chamber and air chamber; The identical independent fuel element of several structures is set on the burner outlet end face of described burner, and several jet expansion wall surface temperature measuring points are set; Separately fuel element forms by the fuel nozzle at center with around the air nozzle of fuel nozzle, and wherein, fuel nozzle be vertical layout, and air nozzle is for being in tilted layout, air nozzle along jet hole plane perpendicular line range of tilt angles between 10 ~ 20o.
The xsect of described firing chamber is rectangle, three or four transparent quartz windows of walls installation in the firing chamber.
The smoke sampling passage is set on the combustor exit of described firing chamber, is convenient to the smoke sampling analysis, by the on-line measurement analysis of pertinent instruments realization to flue gas.
Described fuel chamber and air chamber are positioned at the bottom of burner, and air chamber possesses a plurality of air ins.
Described independent fuel element is the polygon arranged in arrays, or the circular array layout, or oval-shaped array is arranged.
Described jet expansion wall surface temperature measuring point is 3 ~ 5, and the thermopair by being welded on the measuring point place and supporting software are realized the on-line measurement to temperature.
Beneficial effect of the present invention is:
Dispersion by flame front reaches the purpose that reduces temperature of combustion, reaches low NO
XBurning; By the adjustment of different spray nozzles group, can realize adjusting the combustion intensity of whole flame in the burner simultaneously.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of device of the present invention.
Fig. 2 is the vertical view of burner outlet end face among Fig. 1.
Fig. 3 is enlarged diagram and the part sectioned view of independent fuel element among Fig. 2.
Number in the figure:
The 1-burner, 2-firing chamber, 3-fuel chamber, the 4-air chamber, 11-burner outlet end face, the independent fuel element of 12-, 13-jet expansion wall surface temperature measuring point, the 121-air nozzle, 122-fuel nozzle, 21-quartz window, the 22-combustor exit, 23-smoke sampling passage, 31-fuel inlet, 41-air in.
Embodiment
The invention provides the low NO of a kind of realization gaseous fuel
XThe experimental technique of smooth combustion and device, the present invention will be further described below in conjunction with the drawings and specific embodiments.
Described realization gaseous fuel hangs down NO
XThe experimental technique of smooth combustion is specially: adopt rotational flow air parcel gas fuel combustion, air nozzle all is set around forming together little mixed combustion unit around each gas fuel nozzle; In the experiment, can in fuel, sneak into N
2Deng fuel diluted, reach the purpose that reduces temperature of combustion, realize low NO
XBurning; By the opening and stopping up of different fuel nozzle passage, each fuel element can isolated operation or cooperation, thereby adjusts the combustion intensity of whole flame in the burner.
Realize the device of described method, as shown in Figure 1:
Described burner is comprised of critical pieces such as burner 1, firing chamber 2, fuel chamber 3 and air chamber 4; The identical independent fuel element 12 of several structures is set on the burner outlet end face 11 of burner 1; Separately fuel element 12 forms by the fuel nozzle 122 at center with around the air nozzle 121 of fuel nozzle 122, and wherein, fuel nozzle 122 be vertical layout, and air nozzle 121 is for being in tilted layout.A plurality of independent fuel elements 12 guarantee that flame front disperses, and make thermal load be unlikely to too to concentrate, and reduce temperature of combustion, realize the burning of low NOx; Air nozzle 122 can produce vortex gas-flow, realizes that air well mixes with gaseous fuel, reaches the purpose of steady combustion and after-flame; By the opening and stopping up of different fuel nozzle 121 passages, different fuel elements 12 can isolated operation or cooperation, thereby adjusts the combustion intensity of whole flame in the burner.Set temperature measuring point 13 on the burner outlet end face 11 of burner 1 is realized the on-line measurement of wall surface temperature in the burning.
The xsect of firing chamber 2 is square, installs transparent quartz window 21 additional on three of firing chamber 2 or four walls, observes flame combustion situation in the firing chamber, the startup of being convenient to burn and the observation of combustion case by it; Bypass at combustor exit 22 has designed smoke sampling passage 23, makes things convenient for the smoke sampling analysis, realizes the on-line measurement analysis of tail flue gas by pertinent instruments.Air chamber 4 and 3 two chambers of fuel chamber are arranged respectively at burner 1 bottom, and air and fuel enter firing chamber 2 by nozzle separately separately respectively, mix in firing chamber 2.It is by increasing fuel chamber's 3 height, adding the method such as porous aggregate realize in fuel chamber 3 that fuel evenly distributes between the 2 interior a plurality of fuel nozzles of firing chamber; It is that the method that a plurality of air ins 41 are set in by air chamber 4 realizes that air evenly distributes between the 2 interior a plurality of air nozzles of firing chamber.In service, fuel by fuel inlet 31 enter fuel chamber 3, air enters air chamber 4 by air in 41.
The invention is not restricted to the above specific embodiment of enumerating.Obviously, the present invention can also have many distortion, in the implication suitable with claims and any change in the scope, all should think to be included in the scope of claims.
Claims (7)
1. realize the low NO of gaseous fuel for one kind
XThe experimental technique of smooth combustion is characterized in that, adopts the fuel element of many group rotational flow air parcel gaseous fuels, around the gas fuel nozzle air nozzle is set all in each unit and jointly forms fuel element; By many groups fuel element independent burning separately, reduced local heat load; In the experiment, in fuel, sneak into N
2Fuel diluted reaches the purpose that reduces temperature of combustion, realizes low NO
XBurning; By the opening and stopping up of different fuel nozzle passage, each fuel element can isolated operation or cooperation, thereby adjusts the combustion intensity of whole flame in the burner.
2. realize the low NO of gaseous fuel for one kind
XThe experimental provision of smooth combustion, comprise burner (1), firing chamber (2), fuel chamber (3) and air chamber (4), it is characterized in that, the identical independent fuel element (12) of several structures is set on the burner outlet end face (11) of described burner (1), and several jet expansion wall surface temperature measuring points (13) are set; Separately fuel element (12) forms by the fuel nozzle (122) at center with around the air nozzle (121) of fuel nozzle (122), wherein, fuel nozzle (122) is vertically to arrange, air nozzle (121) is for being in tilted layout, air nozzle (121) along jet hole plane perpendicular line range of tilt angles between 10 ~ 20o.
3. a kind of realization gaseous fuel according to claim 2 hangs down NO
XThe device of smooth combustion is characterized in that, the xsect of described firing chamber (2) is rectangle, three of (2) or four transparent quartz windows (21) of walls installation in the firing chamber.
4. a kind of realization gaseous fuel according to claim 2 hangs down NO
XThe device of smooth combustion is characterized in that, on the combustor exit (22) of described firing chamber (2) smoke sampling passage (23) is set, and is convenient to the smoke sampling analysis, by the on-line measurement analysis of pertinent instruments realization to flue gas.
5. a kind of realization gaseous fuel according to claim 2 hangs down NO
XThe device of smooth combustion is characterized in that, described fuel chamber (3) and air chamber (4) are positioned at the bottom of burner (1), and air chamber (4) possesses a plurality of air ins (41).
6. a kind of realization gaseous fuel according to claim 2 hangs down NO
XThe device of smooth combustion is characterized in that, described independent fuel element (12) is the polygon arranged in arrays, or the circular array layout, or oval-shaped array is arranged.
7. a kind of realization gaseous fuel according to claim 2 hangs down NO
XThe device of smooth combustion is characterized in that, described jet expansion wall surface temperature measuring point (13) is 3 ~ 5, and the thermopair by being welded on the measuring point place and supporting software are realized the on-line measurement to temperature.
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| CN2012105745986A CN103063703A (en) | 2012-12-26 | 2012-12-26 | Experimental method and apparatus for realizing low-NOX stable combustion of gaseous fuel |
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| CN2012105745986A CN103063703A (en) | 2012-12-26 | 2012-12-26 | Experimental method and apparatus for realizing low-NOX stable combustion of gaseous fuel |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983738A (en) * | 2014-05-17 | 2014-08-13 | 中国科学技术大学 | Combustion device for researching soot characteristics in low-pressure environment |
| CN105699423A (en) * | 2016-03-10 | 2016-06-22 | 北京理工大学 | Device for testing fuel combustion performance of ramjet |
| CN106461211A (en) * | 2014-05-30 | 2017-02-22 | 川崎重工业株式会社 | Combustor for gas turbine engine |
| CN106679150A (en) * | 2017-02-24 | 2017-05-17 | 广东万家乐燃气具有限公司 | Gas water heater capable of adjusting primary air amount |
| CN108800130A (en) * | 2018-07-20 | 2018-11-13 | 华电电力科学研究院有限公司 | A kind of low nitrogen burning system and its control method can inhibit burning concussion |
| CN114110661A (en) * | 2021-11-05 | 2022-03-01 | 北京航空航天大学 | Laminar diffusion flame experiment table and experimental use method thereof |
| CN116025927A (en) * | 2023-03-27 | 2023-04-28 | 北京航空航天大学 | Premixing nozzle structure and combustion chamber |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112997A (en) * | 1994-02-24 | 1995-12-06 | 株式会社东芝 | Combustion apparatus of gas turbine and method for controlling combustion of same |
| JP2597793B2 (en) * | 1991-09-27 | 1997-04-09 | ゼネラル・エレクトリック・カンパニイ | Fuel stage premixed low NOx combustor |
| CN1598406A (en) * | 2003-08-25 | 2005-03-23 | 再造韩国有限公司 | Gasification burner using high-pressure swirled air |
| CN1959213A (en) * | 2006-04-13 | 2007-05-09 | 中国科学院工程热物理研究所 | Nozzle structure of combustion chamber in low heat value of gas turbine, and combustion method |
| JP3990678B2 (en) * | 2004-03-17 | 2007-10-17 | 川崎重工業株式会社 | Gas turbine combustor |
| CN101334175A (en) * | 2008-07-28 | 2008-12-31 | 华北电力大学 | Method and device for implementing high hydrogen gas turbine low NOx emission |
| CN202956354U (en) * | 2012-12-26 | 2013-05-29 | 华北电力大学 | Experimental device capable of realizing low-NOX stable combustion of gas fuel |
-
2012
- 2012-12-26 CN CN2012105745986A patent/CN103063703A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2597793B2 (en) * | 1991-09-27 | 1997-04-09 | ゼネラル・エレクトリック・カンパニイ | Fuel stage premixed low NOx combustor |
| CN1112997A (en) * | 1994-02-24 | 1995-12-06 | 株式会社东芝 | Combustion apparatus of gas turbine and method for controlling combustion of same |
| CN1598406A (en) * | 2003-08-25 | 2005-03-23 | 再造韩国有限公司 | Gasification burner using high-pressure swirled air |
| JP3990678B2 (en) * | 2004-03-17 | 2007-10-17 | 川崎重工業株式会社 | Gas turbine combustor |
| CN1959213A (en) * | 2006-04-13 | 2007-05-09 | 中国科学院工程热物理研究所 | Nozzle structure of combustion chamber in low heat value of gas turbine, and combustion method |
| CN101334175A (en) * | 2008-07-28 | 2008-12-31 | 华北电力大学 | Method and device for implementing high hydrogen gas turbine low NOx emission |
| CN202956354U (en) * | 2012-12-26 | 2013-05-29 | 华北电力大学 | Experimental device capable of realizing low-NOX stable combustion of gas fuel |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103983738A (en) * | 2014-05-17 | 2014-08-13 | 中国科学技术大学 | Combustion device for researching soot characteristics in low-pressure environment |
| CN103983738B (en) * | 2014-05-17 | 2015-12-09 | 中国科学技术大学 | A kind of burner for the soot characteristic research under environment under low pressure |
| CN106461211A (en) * | 2014-05-30 | 2017-02-22 | 川崎重工业株式会社 | Combustor for gas turbine engine |
| CN106461211B (en) * | 2014-05-30 | 2019-03-22 | 川崎重工业株式会社 | The burner of gas-turbine unit |
| CN105699423A (en) * | 2016-03-10 | 2016-06-22 | 北京理工大学 | Device for testing fuel combustion performance of ramjet |
| CN105699423B (en) * | 2016-03-10 | 2018-06-01 | 北京理工大学 | A kind of punching engine fuel combustion performance testing device |
| CN106679150A (en) * | 2017-02-24 | 2017-05-17 | 广东万家乐燃气具有限公司 | Gas water heater capable of adjusting primary air amount |
| CN108800130A (en) * | 2018-07-20 | 2018-11-13 | 华电电力科学研究院有限公司 | A kind of low nitrogen burning system and its control method can inhibit burning concussion |
| CN108800130B (en) * | 2018-07-20 | 2023-11-28 | 华电电力科学研究院有限公司 | Low-nitrogen combustion system capable of inhibiting combustion oscillation and control method thereof |
| CN114110661A (en) * | 2021-11-05 | 2022-03-01 | 北京航空航天大学 | Laminar diffusion flame experiment table and experimental use method thereof |
| CN116025927A (en) * | 2023-03-27 | 2023-04-28 | 北京航空航天大学 | Premixing nozzle structure and combustion chamber |
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Application publication date: 20130424 |