CN101975393A - Biomass gasification reburning nozzle system for industrial boiler - Google Patents
Biomass gasification reburning nozzle system for industrial boiler Download PDFInfo
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- CN101975393A CN101975393A CN 201010518479 CN201010518479A CN101975393A CN 101975393 A CN101975393 A CN 101975393A CN 201010518479 CN201010518479 CN 201010518479 CN 201010518479 A CN201010518479 A CN 201010518479A CN 101975393 A CN101975393 A CN 101975393A
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- industrial boiler
- nozzle
- nozzles
- nozzle system
- hearth
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Abstract
The invention relates to a biomass gasification reburning nozzle system for an industrial boiler, and belongs to the technical field of biological energy. The system comprises a hearth and a plurality of nozzles which are arranged in the hearth in pairs, wherein the nozzles are arranged on the two sides of a throat of the hearth in pairs along the radial direction of the industrial boiler; and the nozzles stretch into the hearth of the industrial boiler by 0.1 to 0.15 meter, the interval between two adjacent nozzles on the same horizontal plane is 0.6 to 1 meter, an included angle between the central axis of each nozzle and the horizontal plane is 5 to 30 degrees. Through the biomass gasification reburning nozzle system, biomass gasification gas can be burned in the hearth of the industrial boiler to the greatest extent so as to fulfill the aims of saving energy and reducing emission for the industrial boiler.
Description
Technical field
What the present invention relates to is a kind of device of bioenergy technical field, specifically is that nozzle system is fired in a kind of living beings gasification that is used for Industrial Boiler again.
Background technology
Biomass energy is a kind of reproducible clean energy resource, China's biomass resource total amount is very abundant, but disperses the transportation difficulty owing to distribute, big as the single fuel firing cost, and directly biomass fuel and the coal multifuel combustion operation and maintenance to equipment can be exerted an adverse impact.Therefore the combustion technology again that sprays into coal-burning boiler and the common burning of coal in gasification furnace after biomass fuel gasifies is a kind of mode of utilizing biomass energy of suitable China's national situation.
The industrial boilers in China One's name is legion, coal consumption is big, and discharge capacity is big, and energy-saving and emission-reduction have a high potential, so Industrial Boiler uses the living beings combustion technology that gasifies again can not only save conventional fossil energy, also can reduce the discharging of nitrogen oxide simultaneously.The nozzle system that wherein connects gasification furnace and Industrial Boiler is a core component, relate to the many-sided factors such as position, incident angle, mixed effect that spray into of biomass gasified gas, these factors directly influence the combustion efficiency of biomass gasified gas, and the while is directly related with the effects of energy conservation and environmental protection that the indirect multifuel combustion of living beings and coal can reach.
Find through retrieval prior art, the example of biomass-burning gasification gas is not again arranged at present as yet in Industrial Boiler, many is to fire natural gas in pulverized coal furnace of hydropower station again, and this technology is only fired the model of combustion again that also has only single nozzle again, should wait as the Wu Shuan of University Of Chongqing to deliver and " adopt jet combustion again to reduce NO
XThe Cold State Analysis of single injector jet during discharging ".At first, applicable object of the present invention is different from generating plant pulverized coal boiler, is One's name is legion, the Industrial Boiler that discharge capacity is big; Secondly, the medium by nozzle among the present invention is different from natural gas, is the biomass gasified gas that contains tar; The 3rd, be different from the jet of single-nozzle, the present invention is a nozzle system, is the integral body that nozzle sets is lumped together by many, utilizes the layout of a plurality of nozzles to realize that helps fully the burn flow field of nitrogen oxides reduction of biomass gasified gas.
Summary of the invention
It is big to the present invention is directed to the Industrial Boiler coal consumption amount, the problem that discharge capacity is big, provide a kind of living beings gasification that is used for Industrial Boiler to fire nozzle system again, biomass gasified gas can be burnt in the Industrial Boiler burner hearth to greatest extent, thereby realize the purpose that industry boiler energy-conservation reduces discharging.
The present invention is achieved by the following technical solutions, the present invention includes: nozzle and some nozzles that is arranged in pairs in the burner hearth, wherein: nozzle radially is arranged at the throat location both sides of burner hearth in pairs along Industrial Boiler.
The head of described nozzle is a hemispherical, the head outer surface of this nozzle is provided with 5 spouts, this nozzle is counted from nozzle-end, stretch into 0.1～0.15 meter in Industrial Boiler burner hearth, adjacent two injector spacings are 0.6～1 meter on the same horizontal plane, and the central axis of each nozzle and the angle of horizontal plane are 5～30 degree.
The present invention sprays into the biomass gasified gas of the non-premix mode with high-speed jet in the Industrial Boiler, because the Industrial Boiler excess air factor is big, so the burning of biomass gasified gas need not to be equipped with secondary wind again.By nozzle system of the present invention, biomass gasified gas will cover the whole plane of Industrial Boiler throat location height, and form a plurality of circulation zone on this plane.Utilize the high-speed jet of biomass gasified gas to entrainment flue gas and the excess air that rises to the aditus laryngis place, make biomass gasified gas and air evenly mix fully burning, reduce the concentration of emission of the nitrogen oxide in the flue gas simultaneously.
Description of drawings
Fig. 1 is the layout schematic diagram of nozzle system on Industrial Boiler.
Fig. 2 is a nozzle system effect schematic diagram;
Wherein: 4 nozzles, 5 circulation zones.
Fig. 3 is the nozzle arrangements schematic diagram;
Wherein: 6 nozzles and the gasification furnace escape pipe place that is tightly connected, 7 converging transitions, 8 nozzles stretch into boiler stove inner segment, the anterior semispherical surface of 9 nozzles.
Fig. 4 is the anterior semispherical surface perforate of a nozzle schematic diagram;
Wherein: the anterior semispherical surface of 10 nozzles, 5 spouts on 11 semispherical surfaces.
The specific embodiment
Below embodiments of the invention are elaborated, present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, present embodiment comprises: burner hearth 1 and some nozzles 2 that is arranged in pairs in the burner hearth 1, wherein: nozzle 2 radially is arranged at the both sides, aditus laryngis 3 position of burner hearth 1 in pairs along Industrial Boiler.
The head of described nozzle 2 is a hemispherical, and the head of this nozzle 2 stretches into 0.05～0.1 meter in Industrial Boiler burner hearth, and with 0.6～1 meter of side nozzle 2 spacing, the central axis of each nozzle 2 and the angle of horizontal plane are 5～30 degree.
The present invention can carry out living beings in Industrial Boiler gasifies during combustion technology transforms again, assigned address boring at the boiler wall after actual measurement is installed, connect biomass gasifying furnace and Industrial Boiler, nozzle quantity can be calculated by boiler radical length and each injector spacing, and jet size can amplify in proportion or dwindles according to the different type of furnaces and biomass gasified gas demand.
The coal of system alternative 10%～20% is fired in the living beings gasification again on the small test platform, and this nozzle system then can make the discharge capacity of nitrogen oxide reduce more than 60%.
Claims (4)
1. nozzle system is fired in a living beings gasification that is used for Industrial Boiler again, and comprising: nozzle and some nozzles that is arranged in pairs in the burner hearth, it is characterized in that: nozzle radially is arranged at the throat location both sides of burner hearth in pairs along Industrial Boiler.
2. nozzle system is fired in the living beings gasification that is used for Industrial Boiler according to claim 1 again, it is characterized in that the head of described nozzle is a hemispherical.
3. nozzle system is fired in the living beings gasification that is used for Industrial Boiler according to claim 1 again, it is characterized in that the head outer surface of described nozzle is provided with 5 spouts.
4. fire nozzle system again according to arbitrary described living beings gasification that is used for Industrial Boiler in claim 1 or 2 or 3, it is characterized in that, described nozzle stretches on 0.1～0.15 meter in Industrial Boiler burner hearth and the same horizontal plane 0.6～1 meter of adjacent two injector spacing from nozzle-end, and the central axis of each nozzle and the angle of horizontal plane are 5～30 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010518479 CN101975393A (en) | 2010-10-26 | 2010-10-26 | Biomass gasification reburning nozzle system for industrial boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010518479 CN101975393A (en) | 2010-10-26 | 2010-10-26 | Biomass gasification reburning nozzle system for industrial boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101975393A true CN101975393A (en) | 2011-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010518479 Pending CN101975393A (en) | 2010-10-26 | 2010-10-26 | Biomass gasification reburning nozzle system for industrial boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110639357A (en) * | 2019-10-29 | 2020-01-03 | 辽宁绿源能源环保科技集团有限责任公司 | Boiler structure and in-boiler desulfurization and denitrification method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5626088A (en) * | 1995-11-28 | 1997-05-06 | Foster Wheeler Energia Oy | Method and apparatus for utilizing biofuel or waste material in energy production |
| CN2487967Y (en) * | 2000-07-18 | 2002-04-24 | 朴锡浩 | Fuel injector for industrial boiler |
| CN2501564Y (en) * | 2001-10-31 | 2002-07-24 | 清华大学 | Apparatus by bio-matter pyrolytic gas refiring denitration |
| CN1387006A (en) * | 2001-05-18 | 2002-12-25 | 清华大学 | Method and apparatus for reducing exhaustion of nitrogen oxides from coal-fired boiler |
-
2010
- 2010-10-26 CN CN 201010518479 patent/CN101975393A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5626088A (en) * | 1995-11-28 | 1997-05-06 | Foster Wheeler Energia Oy | Method and apparatus for utilizing biofuel or waste material in energy production |
| CN2487967Y (en) * | 2000-07-18 | 2002-04-24 | 朴锡浩 | Fuel injector for industrial boiler |
| CN1387006A (en) * | 2001-05-18 | 2002-12-25 | 清华大学 | Method and apparatus for reducing exhaustion of nitrogen oxides from coal-fired boiler |
| CN2501564Y (en) * | 2001-10-31 | 2002-07-24 | 清华大学 | Apparatus by bio-matter pyrolytic gas refiring denitration |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110639357A (en) * | 2019-10-29 | 2020-01-03 | 辽宁绿源能源环保科技集团有限责任公司 | Boiler structure and in-boiler desulfurization and denitrification method |
| CN110639357B (en) * | 2019-10-29 | 2024-02-06 | 绿源能源环境科技集团有限公司 | Boiler structure and boiler internal desulfurization and denitrification method |
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| C06 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20110216 |