CN210801172U - Flat dispersion flame low NOx coal gas heat accumulation burner - Google Patents
Flat dispersion flame low NOx coal gas heat accumulation burner Download PDFInfo
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- CN210801172U CN210801172U CN201921462624.XU CN201921462624U CN210801172U CN 210801172 U CN210801172 U CN 210801172U CN 201921462624 U CN201921462624 U CN 201921462624U CN 210801172 U CN210801172 U CN 210801172U
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
A flat dispersion flame low NOx coal gas heat accumulation combustion device belongs to the technical field of industrial furnace heating coal gas combustion. The device comprises a gas nozzle (1), an air inlet/flue gas outlet (2), an ignition gas nozzle (3), a flame detector interface (4), a heat storage box (5), a heat storage body loading port (6), a heat storage body taking-out port (7), a heat storage body slag discharge port (8), burner blocks (9), an air/flue gas nozzle (10), an ignition electrode interface (11), a flue gas temperature detection port (12) and gas nozzle cooling air (3). The multifunctional electric heating cooker has the advantages of small structure volume, simple structure, strong functionality, convenience in installation and long service life.
Description
Technical Field
The utility model belongs to the technical field of industrial furnace heating gas burning, especially, provide a low NOx coal gas heat accumulation burner of flat dispersion flame, can reduce NOx and discharge, flame is adjustable.
Background
The gas nozzle and the air nozzle of the traditional heat storage burner are of concentric structures, and because the air wraps the gas and is subjected to entrainment, the flue gas cannot enter a combustion area, the generated flue gas circulates in a small range, and local high temperature is generated, so that the content of NOx in combustion products is higher. The utility model discloses "low NOx coal gas heat retaining combustor of flat dispersion flame and application method" just under this kind of background, on the basis of having absorbed foreign advanced technology, the innovative low NOx who develops of a low NOx emission, simple structure mixes coal gas flame adjusting burner.
Disclosure of Invention
An object of the utility model is to provide a flat dispersion flame hangs down NOx coal gas heat accumulation burner has overcome traditional nozzle NOx and has discharged higher shortcoming, not only makes steel billet heating quality obtain promoting, also greatly reduced NOx's emission simultaneously, is favorable to the environmental protection.
The device of the utility model comprises a coal gas nozzle 1, an air inlet/flue gas outlet 2, an ignition coal gas nozzle 3, a flame detector interface 4, a heat storage box 5, a heat storage body loading port 6, a heat storage body taking port 7, a heat storage body slag discharge port 8, a burner block 9, an air/flue gas nozzle 10, an ignition electrode interface 11, a flue gas temperature detection port 12 and a coal gas nozzle cooling air 13.
The flame detector interface 4 and the ignition electrode interface 11 are arranged on the ignition gas nozzle 3 to form an ignition device. The ignition device is arranged at the upper part of the heat storage box 5. The air inlet/flue gas outlet 2 is arranged at the lower part of the heat storage box 5. The heat accumulator loading port 6, the heat accumulator taking-out port 7 and the heat accumulator slag discharging port 8 are arranged on the heat accumulator box 5 from top to bottom. Air/flue gas nozzles 10 are mounted on the burner block 9. The burner block 9 is connected to the heat storage box 5. The flue gas temperature detection port 12 is installed at the side of the heat storage tank 5. The gas nozzle cooling air 13 is arranged on the gas nozzle 1, and the gas nozzle 1 is arranged on two sides of the heat storage box 5.
The utility model discloses an air is spout into, coal gas spouts into furnace's mechanism from both sides from the centre for flame is flat dispersed blowout, has increased the volume of flame, makes the burning more even, reduces local overheat region, thereby makes the NOx yield be less than 100mg Nm 3. The burner is provided with a heat storage box, smoke at 1200 ℃ in the furnace passes through the heat storage box to heat the heat accumulator, and the smoke is discharged out of the furnace after the temperature of the smoke is reduced to 200 ℃. The cold air passes through the heat accumulator and is heated to 1000 ℃ and then is sprayed into the furnace. The arrangement of the heat storage box enables the temperature of air entering the furnace for combustion to be increased, the temperature of flue gas outside the furnace to be eliminated to be reduced, and the purposes of energy conservation and emission reduction are achieved.
The utility model has the following functional characteristics:
1) the main function of the air/flue gas nozzles 10 is to supply the air needed for the fuel during combustion and to draw flue gases from the furnace during exhaust.
2) The ignition gas jet 3 mainly functions to inject fuel gas into the furnace during combustion and to stop injecting fuel gas during exhaust.
3) And filling heat storage materials in the heat storage box. During exhaust, the heat accumulator absorbs the heat of the hot flue gas to increase the temperature; during combustion, the heat accumulator releases heat to the air introduced into the furnace to reduce the temperature, and a heat accumulation cycle is completed.
4) The outer part of the ignition gas nozzle 3 is connected with ignition gas, and an ignition electrode is arranged at the nozzle. Air/coal gas is mixed in the heat storage box, and the ignition electrode is ignited to realize the automatic ignition function of the burner.
5) The space of the ignition gas nozzle 3 is utilized to realize the real-time flame detection function, and a flame detector is arranged to detect the flame in real time.
Low NOx achievement:
the formation of NOx must be conditioned by a sufficiently high temperature and concentration in the combustion zone O2. The average temperature of the hearth is determined by the process requirement in the furnace, is the target temperature for designing and researching the combustor, cannot be changed, but the local over-temperature in the hearth is the reason for generating NOx, and the generation amount of NOx can be reduced by inhibiting the local over-temperature. The fact that the oxygen concentration in the combustion area is too high means that the air gas for combustion is mixed too fast, and the influence of high-concentration oxygen content on the generation amount of NOx can be avoided by increasing the contact area of the air gas. The utility model discloses "low NOx coal gas heat accumulation combustor of flat dispersion flame and application method" adopt the mode of dispersed burning to avoid local high temperature's formation and even furnace oxygen concentration for NOx does not possess the formation condition, thereby reaches the purpose that reduces NOx and discharges.
The utility model discloses make fuel and air area of contact increase from the combustion mechanism, consequently flame becomes the dispersion combustion state, and the temperature is more even. The multifunctional electric heating cooker has the advantages of small structure volume, simple structure, strong functionality, convenience in installation and long service life.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a cross-sectional view of the gas nozzle 1, burner block 9 and air/flue gas nozzle 10 of the present invention.
Fig. 3 is a side view of the present invention.
In the figure, a gas nozzle 1, an air inlet/flue gas outlet 2, an ignition gas nozzle 3, a flame detector interface 4, a heat storage box 5, a heat storage body loading port 6, a heat storage body taking-out port 7, a heat storage body slag discharge port 8, a burner block 9, an air/flue gas nozzle 10, an ignition electrode interface 11, a flue gas temperature detection port 12 and a gas nozzle cooling air 13.
Detailed Description
The present invention will be described below with reference to the accompanying drawings. Of course, the present invention is not limited to this example, and other changes and innovations may be made according to specific conditions.
The device of the utility model comprises a coal gas nozzle 1, an air inlet/flue gas outlet 2, an ignition coal gas nozzle 3, a flame detector interface 4, a heat storage box 5, a heat storage body loading port 6, a heat storage body taking port 7, a heat storage body slag discharge port 8, a burner block 9, an air/flue gas nozzle 10, an ignition electrode interface 11, a flue gas temperature detection port 12 and a coal gas nozzle cooling air 13.
The flame detector interface 4 and the ignition electrode interface 11 are arranged on the ignition gas nozzle 3 to form an ignition device. The ignition device is arranged at the upper part of the heat storage box 5. The air inlet/flue gas outlet 2 is arranged at the lower part of the heat storage box 5. The heat accumulator loading port 6, the heat accumulator taking-out port 7 and the heat accumulator slag discharging port 8 are arranged on the heat accumulator box 5 from top to bottom. Air/flue gas nozzles 10 are mounted on the burner block 9. The burner block 9 is connected to the heat storage box 5. The flue gas temperature detection port 12 is installed at the side of the heat storage tank 5. The gas nozzle cooling air 13 is arranged on the gas nozzle 1, and the gas nozzle 1 is arranged on two sides of the heat storage box 5.
As further described below in conjunction with the figures.
Referring to fig. 1-3, the heat accumulator is loaded into the burner through the heat accumulator loading port and can be taken out through the heat accumulator unloading port for ash removal or replacement after a period of use. When the burner is started, the ignition electrode is started, and then a mixture of gas and air is introduced through the ignition nozzle for ignition to form stable jet flame; after the temperature of the hearth reaches 600 ℃, the ignition nozzle is closed, the gas nozzle and the air inlet valve are opened, so that air is sprayed in from the middle, gas is sprayed in from two sides, dispersed flame is formed, the temperature of the hearth is improved, the gas nozzle and the air inlet valve are closed after a combustion period, the flue gas outlet valve is opened, so that flue gas after combustion in the furnace is discharged from the flue gas outlet after heat exchange of the heat accumulator, the gas nozzle and the air inlet valve are opened again after the flue gas is discharged, and the heat accumulation combustion is realized in a reciprocating mode.
Claims (3)
1. A flat dispersion flame low NOx gas heat accumulation combustion device is characterized by comprising a gas nozzle (1), an air inlet/flue gas outlet (2), an ignition gas nozzle (3), a flame detector interface (4), a heat accumulation box (5), a heat accumulation body loading port (6), a heat accumulation body taking-out port (7), a heat accumulation body slag discharge port (8), a burner block (9), an air/flue gas nozzle (10), an ignition electrode interface (11), a flue gas temperature detection port (12) and gas nozzle cooling air (13);
the flame detector interface (4) and the ignition electrode interface (11) are arranged on the ignition gas nozzle (3) to form an ignition device, and the ignition device is arranged on the upper part of the heat storage box (5); the air inlet/flue gas outlet (2) is arranged at the lower part of the heat storage box (5), and the heat storage body loading port (6), the heat storage body taking-out port (7) and the heat storage body slag discharging port (8) are arranged on the heat storage box (5) from top to bottom; the air/flue gas nozzle (10) is arranged on a burner block (9), and the burner block (9) is connected to the heat storage box (5); the flue gas temperature detection port (12) is arranged on the side part of the heat storage box (5), the gas nozzle cooling air (13) is arranged on the gas nozzle (1), and the gas nozzle (1) is arranged on two sides of the heat storage box (5).
2. The flat dispersion flame low NOx gas thermal storage combustion device according to claim 1, characterized in that the thermal storage tank (5) is filled with a thermal storage material.
3. The flat dispersion flame low NOx gas heat accumulation burner as claimed in claim 1, characterized by the fact that the ignition gas port (3) is externally connected to the ignition gas and the ignition electrode is arranged at the port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921462624.XU CN210801172U (en) | 2019-09-04 | 2019-09-04 | Flat dispersion flame low NOx coal gas heat accumulation burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921462624.XU CN210801172U (en) | 2019-09-04 | 2019-09-04 | Flat dispersion flame low NOx coal gas heat accumulation burner |
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| Publication Number | Publication Date |
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| CN210801172U true CN210801172U (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921462624.XU Active CN210801172U (en) | 2019-09-04 | 2019-09-04 | Flat dispersion flame low NOx coal gas heat accumulation burner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631010A (en) * | 2019-09-04 | 2019-12-31 | 北京首钢国际工程技术有限公司 | Flat dispersion flame low NOx coal gas heat accumulation burner |
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2019
- 2019-09-04 CN CN201921462624.XU patent/CN210801172U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631010A (en) * | 2019-09-04 | 2019-12-31 | 北京首钢国际工程技术有限公司 | Flat dispersion flame low NOx coal gas heat accumulation burner |
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