CN212204520U - Burner of heating furnace with super large regulation ratio - Google Patents
Burner of heating furnace with super large regulation ratio Download PDFInfo
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- CN212204520U CN212204520U CN202020806523.6U CN202020806523U CN212204520U CN 212204520 U CN212204520 U CN 212204520U CN 202020806523 U CN202020806523 U CN 202020806523U CN 212204520 U CN212204520 U CN 212204520U
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- 238000010438 heat treatment Methods 0.000 title claims description 23
- 230000033228 biological regulation Effects 0.000 title abstract description 13
- 239000007921 spray Substances 0.000 claims abstract description 36
- 239000011449 brick Substances 0.000 claims abstract description 11
- 230000030279 gene silencing Effects 0.000 claims abstract description 8
- 239000000446 fuel Substances 0.000 claims description 18
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 239000010425 asbestos Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 229910052895 riebeckite Inorganic materials 0.000 claims description 5
- 238000004321 preservation Methods 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 26
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
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- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
Abstract
The burner comprises a burner shell, a flame path brick and a main spray gun, wherein the upper part of the burner shell is provided with the flame path brick, the inside of the burner shell is respectively provided with the main spray gun, a pilot lamp, a first auxiliary gun, a second auxiliary gun and a third auxiliary gun, the main spray gun is arranged at the center inside the burner shell, the periphery of the main spray gun is respectively provided with the pilot lamp, the first auxiliary gun, the second auxiliary gun and the third auxiliary gun at intervals and is respectively fixed on a bottom plate of the burner shell through flanges, the rear parts of the first auxiliary gun, the second auxiliary gun and the third auxiliary gun are respectively communicated with a first auxiliary gun gas collection chamber, a second auxiliary gun gas collection chamber and a third auxiliary gun gas collection chamber, one side of the lower part of the burner shell is provided with an air channel, and the outside of the air channel is provided with a silencing cover connected through a flange; the utility model discloses simple structure, realization control super large regulation ratio, the stove heaies up steadily, and combustion effect is good, and flame is stable, and operating condition is good, satisfies the technological requirement.
Description
Technical Field
The utility model relates to a combustor especially relates to a super large turndown ratio heating furnace burner.
Background
It is known that, when a heating furnace used in petrochemical industry, metallurgy industry and other industries is built or reconstructed, the heating furnace needs to be baked according to requirements, in order to meet the temperature curve required by the heating furnace, the heat release amount of a burner needs to be adjusted at any time, and the maximum adjusting ratio of a common gas burner is 1: 5, in the case of a furnace equipped with a plurality of burners or a low profile requirement, it can be marginally satisfied by gradually increasing the number of burners to be activated. However, when the number of burners of the furnace is limited or the requirement for a furnace baking curve is high, a single burner is required to have great operation flexibility, and the silencing effect of the silencing cover of the existing burner is poor and the burner is troublesome to disassemble and assemble.
Disclosure of Invention
In order to overcome the defects in the background art, the utility model discloses a burner of a heating furnace with an ultra-large adjusting ratio.
In order to realize the purpose, the utility model adopts the following technical scheme:
the burner of the heating furnace with the ultra-large adjusting ratio comprises a burner shell, a flame path brick and a main spray gun, wherein the flame path brick is arranged at the upper part of the burner shell, the main spray gun, a pilot lamp, a first auxiliary gun, a second auxiliary gun and a third auxiliary gun are respectively arranged in the burner shell, the main spray gun is arranged at the center of the inner part of the burner shell, the pilot lamp, the first auxiliary gun, the second auxiliary gun and the third auxiliary gun are respectively arranged at the periphery of the main spray gun at intervals and are respectively fixed on a bottom plate of the burner shell through flanges, a first auxiliary gun gas collection chamber, a second auxiliary gun gas collection chamber and a third auxiliary gun gas collection chamber are respectively communicated with the rear parts of the first auxiliary gun, the second auxiliary gun gas collection chamber and the third auxiliary gun gas collection chamber, an air duct is arranged on one side of the lower part of the burner shell, a silencing cover connected through an air duct flange is arranged outside the air duct, the silencing cover comprises an upper cover body and a lower cover body connected through a connecting plate, asbestos fiber felt fixed through bolts is respectively arranged, the upper cover body and the lower cover body are provided with a gap, a plurality of stud bolts are arranged in the lower cover body in parallel at intervals, the outer ends of the stud bolts penetrate through the lower cover body and are fixed on the outer surface of the lower cover body, connecting pieces are fixed at the inner ends of the stud bolts, the lower ends of the connecting plates are fixed on the connecting pieces, and the upper ends of the connecting plates are connected to the inner wall of the upper cover body.
The burner of the heating furnace with the ultra-large adjusting ratio is provided with a heat-insulating and sound-deadening layer on the inner wall of the burner shell.
The burner of the heating furnace with the ultra-large regulation ratio is characterized in that a first auxiliary gun fuel inlet, a second auxiliary gun fuel inlet and a third auxiliary gun fuel inlet are respectively arranged at the rear parts of a first auxiliary gun gas collection chamber, a second auxiliary gun gas collection chamber and a third auxiliary gun gas collection chamber.
The burner of the heating furnace with the ultra-large regulation ratio is characterized in that the air channel comprises a primary air door butterfly valve and a secondary air door butterfly valve, and air door regulating handles are arranged on the primary air door butterfly valve and the secondary air door butterfly valve.
The burner of the heating furnace with the ultra-large adjusting ratio is provided with an pilot burner fuel inlet at the rear end of the pilot burner.
The burner of the heating furnace with the ultra-large regulation ratio is characterized in that a main spray gun adopts an annular spray gun structure, and a flame stabilizing cover is arranged on the outer edge of the end face of the main spray gun.
Since the technical scheme is used, the utility model discloses following beneficial effect has:
1. the utility model discloses a burner of a heating furnace with an ultra-large regulation ratio, through arranging a gas collection chamber of a No. 1 auxiliary gun, a gas collection chamber of a No. 2 auxiliary gun and a gas collection chamber of a No. 3 auxiliary gun at the rear parts of the No. 1 auxiliary gun, the No. 2 auxiliary gun and the No. 3 auxiliary gun, introduced gas is converged at the gas collection chambers and is uniformly sprayed out by a nozzle head of the auxiliary gun, and the load of the burner can be gradually increased; the main spray gun is in an annular spray gun structure, spray holes are uniformly distributed in the end face, the diameter of each spray hole is small, the flow speed of a fuel gas outlet is larger than the flame propagation speed, the tempering danger is avoided, and meanwhile, the flame turbulent diffusion can be increased, so that the unevenness of the temperature distribution in the furnace is eliminated. In addition, the outer edge of the end face of the spray gun is uniformly provided with the flame stabilizing cover, and the air distribution ratio can be reduced through the flame stabilizing cover to form a proper fuel-air mixing ratio so as to stabilize combustion.
2. Super large turndown ratio heating furnace burner, locate to install the amortization cover additional in the wind channel, installation easy maintenance, steerable nozzle wall temperature is less than 50 ℃ and controls the burner when 100% load operation simultaneously, the combustor running noise is less than or equal to 80dB (A). The utility model discloses simple structure, realization control super large regulation ratio, the stove heaies up steadily, and combustion effect is good, and flame is stable, and operating condition is good, satisfies the technological requirement.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the noise reduction cover of the present invention;
in the figure: 1. a third auxiliary gun; 2. a first auxiliary gun; 3. a beacon light; 4. a secondary air door butterfly valve; 5. a sound deadening hood; 6. a primary air door butterfly valve; 7. collecting the gas of the first auxiliary gun; 8. a first auxiliary gun fuel inlet; 9. a beacon fuel inlet; 10. a main lance fuel inlet; 11. a third auxiliary gun fuel inlet; 12. collecting the gas of the third auxiliary gun; 13. Collecting the gas of the second auxiliary gun; 14. a second auxiliary gun fuel inlet; 15. a main spray gun; 16. a second auxiliary gun; 17. a flame path brick; 18. an upper cover body; 19. a bolt; 20. an asbestos fiber felt; 21. a connecting plate; 22. connecting sheets; 23. a lower cover body; 24. a stud bolt.
Detailed Description
The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.
The burner of the heating furnace with the ultra-large adjusting ratio is combined with the attached drawings 1-2, and comprises a burner shell, a flame path brick 17 and a main spray gun 15, wherein the flame path brick 17 is arranged at the upper part of the burner shell, the main spray gun 15, a pilot burner 3, a first auxiliary gun 2, a second auxiliary gun 16 and a third auxiliary gun 1 are respectively arranged in the burner shell, the main spray gun 15 is arranged at the center inside the burner shell, the pilot burner 3, the first auxiliary gun 2, the second auxiliary gun 16 and the third auxiliary gun 1 are respectively arranged at the periphery of the main spray gun 15 at intervals and are respectively fixed on the bottom plate of the burner shell through flanges, the rear parts of the first auxiliary gun 2, the second auxiliary gun 16 and the third auxiliary gun 1 are respectively communicated with a first auxiliary gun gas collection chamber 7, a second gun gas collection chamber 13 and a third auxiliary gun gas collection chamber 12, an air channel is arranged on one side of the lower part of the burner shell, and a silencing cover 5 connected through flanges is arranged outside the air channel, the silencing cover 5 comprises an upper cover body 18 and a lower cover body 23 which are connected through a connecting plate 21, wherein the inner walls of the upper cover body 18 and the lower cover body 23 are respectively provided with an asbestos fiber felt 20 fixed through a bolt 19, a gap is arranged between the upper cover body 18 and the lower cover body 23, a plurality of stud bolts 24 are arranged in the lower cover body 23 at intervals in parallel, the outer ends of the stud bolts 24 penetrate through the lower cover body 23 and are fixed on the outer surface of the lower cover body 23, connecting plates 22 are fixed at the inner ends of the stud bolts 24, the lower ends of the connecting plates 21 are fixed on the connecting plates 22, and the upper ends of the connecting plates 21 are connected to the inner wall of the upper cover.
The burner of the heating furnace with the ultra-large adjusting ratio is provided with a heat-insulating and sound-deadening layer on the inner wall of the burner shell.
The burner of the heating furnace with the ultra-large regulation ratio is characterized in that a first auxiliary gun fuel inlet 8, a second auxiliary gun fuel inlet 14 and a third auxiliary gun fuel inlet 11 are respectively arranged at the rear parts of a first auxiliary gun gas collection chamber 7, a second auxiliary gun gas collection chamber 13 and a third auxiliary gun gas collection chamber 12.
The burner of the heating furnace with the ultra-large adjusting ratio comprises a primary air door butterfly valve 6 and a secondary air door butterfly valve 4, and air door adjusting handles are arranged on the primary air door butterfly valve 6 and the secondary air door butterfly valve 4.
The burner of the heating furnace with the ultra-large adjusting ratio is provided with an pilot burner fuel inlet 9 at the rear end of the pilot burner 3.
The burner of the heating furnace with the ultra-large regulation ratio is characterized in that the main spray gun 15 adopts an annular spray gun structure, and a flame stabilizing cover is arranged on the outer edge of the end face of the main spray gun 15.
The burner of the heating furnace with the ultra-large regulation ratio is implemented, the main spray gun 15 adopts an annular spray gun structure, and the regulating air door regulating handle can respectively regulate the opening and closing sizes of the primary air door butterfly valve 6 and the secondary air door butterfly valve 4 to regulate the air quantity;
the pilot burner 3 is used as a low-load nozzle, the pilot burner 3 has a high-efficiency windproof effect, normal combustion is kept at a high wind speed to serve as an on-duty flame to continuously ignite a central flame, and the operation safety is improved; the pilot burner 3 is used as ignition source of each nozzle of the whole set of burner, and must be safe and reliable to ensure safe and stable ignition under various working conditions, therefore, except for adopting smaller regulation ratio, it has independent air distribution system and flame stabilizing mechanism, which makes it possible to use the burner with pressure difference of 50mmH2The combustion is stable under the condition of O, and the lower part of the combustor shell is provided with a fire observation hole; the heat released by the pilot burner is minimum, and the heat is set as Q1～Q2Adjustment ratio Q2/Q1=3；
The first auxiliary gun 2, the second auxiliary gun 16 and the third auxiliary gun 1 are all provided with independent gas collection chambers, introduced gas is collected and uniformly sprayed out from a nozzle head of the auxiliary gun, and the load of a combustor can be increased step by step;
first auxiliary gun 2 heat release quantity Q3～Q4Adjustment ratio Q4/Q3=4，Q3=Q2；
Heat releasing quantity Q of second auxiliary gun 165～Q6Adjustment ratio Q6/Q5=4，Q5=Q4；
Heat releasing quantity Q of No. three auxiliary gun 17～Q8Adjustment ratio Q8/Q7=4, and Q7=Q4+Q6；
Heat release quantity Q of main spray gun9～Q10Adjustment ratio Q10/Q9=4, and Q9=Q4+Q6+Q8。
The nozzle can maintain a short flame at high loads, so that the total heat release of the burner can reach Q2+Q4+Q6+Q8+Q10The total regulation ratio is as follows: (Q)2+Q4+Q6+Q8+Q10 ) / Q1= 1503。
The air duct comprises a primary air door butterfly valve 6 and a secondary air door butterfly valve 4 which are respectively and independently adjusted, so that air distribution is more direct, more accurate and more uniform, and the combustion efficiency is improved; the primary air door butterfly valve 6 is used for independently providing combustion-supporting air for the main spray gun 15, and the secondary air door butterfly valve 4 is arranged at the outer end of the combustor shell and is used for respectively providing surplus combustion-supporting air required by combustion for the pilot burner 3, the main spray gun 15, the first auxiliary gun 2, the second auxiliary gun 16 and the third auxiliary gun 1; the inner wall of the burner shell is provided with a heat-preservation and noise-reduction layer, the noise-reduction cover 5 is additionally arranged at the air duct, the noise-reduction cover 5 is a galvanized plate, an asbestos fiber felt 20 is fixed on the inner wall through a bolt 19 and is in butt joint with a burner air duct flange, the installation and the maintenance are convenient, the noise-reduction cover 5 comprises an upper cover body 18 and a lower cover body 23, combustion-supporting air is sucked from a gap between the upper cover body 18 and the lower cover body 23, the noise-reduction effect is better, the wall temperature of a burner can be controlled to be lower than 50 ℃, and the running noise of the burner is less than or equal to 80dB (A) when the burner is controlled to operate; the material of the flame path brick 17 is high-alumina (Al 2O3 is more than or equal to 65 percent), the refractoriness of the refractory brick is more than or equal to 1500 ℃, the mixing process of fuel and combustion-supporting air can be limited in a limited space range, meanwhile, the rigidity of flame and the stability of a flow field in a furnace are kept, the flame combustion is stabilized, the tempering and the fire escaping are prevented, and the mixing of gas flow and air flow can be strengthened to improve the combustion efficiency.
The part of the utility model not detailed is prior art.
The embodiments selected for the purpose of disclosing the invention, are presently considered to be suitable, it being understood, however, that the invention is intended to cover all variations and modifications of the embodiments, which fall within the scope of the concept and the utility model.
Claims (6)
1. The utility model provides an ultra-large turn-down ratio heating furnace combustor, includes combustor casing, flame path brick, main spray gun, characterized by: the burner comprises a burner shell, a flame path brick is arranged at the upper part of the burner shell, a main spray gun, a pilot gun, a first pilot gun, a second pilot gun and a third pilot gun are respectively arranged in the burner shell, the main spray gun is arranged at the center in the burner shell, the pilot gun, the first pilot gun, the second pilot gun and the third pilot gun are respectively arranged at the periphery of the main spray gun at intervals and are respectively fixed on a bottom plate of the burner shell through flanges, a first pilot gun gas collection chamber, a second pilot gun gas collection chamber and a third pilot gun gas collection chamber are respectively communicated with the rear parts of the first pilot gun, the second pilot gun and the third pilot gun, an air duct is arranged on one side of the lower part of the burner shell, a silencing cover connected through air duct flanges is arranged outside the air duct, the silencing cover comprises an upper cover body and a lower cover body connected through a connecting plate, asbestos fiber felts fixed through bolts are respectively arranged on the inner walls of the upper cover body and the lower cover body, and a gap is arranged between the upper, a plurality of stud bolts are arranged in the lower cover body in parallel at intervals, the outer ends of the stud bolts penetrate through the lower cover body and are fixed on the outer face of the lower cover body, connecting pieces are fixed at the inner ends of the stud bolts, the lower ends of the connecting plates are fixed on the connecting pieces, and the upper ends of the connecting plates are connected to the inner wall of the upper cover body.
2. The burner of an ultra-high turndown ratio furnace as set forth in claim 1, wherein: the inner wall of the combustor shell is provided with a heat-preservation and sound-deadening layer.
3. The burner of an ultra-high turndown ratio furnace as set forth in claim 1, wherein: the rear parts of the first auxiliary gun gas collection chamber, the second auxiliary gun gas collection chamber and the third auxiliary gun gas collection chamber are respectively provided with a first auxiliary gun fuel inlet, a second auxiliary gun fuel inlet and a third auxiliary gun fuel inlet.
4. The burner of an ultra-high turndown ratio furnace as set forth in claim 1, wherein: the air duct comprises a primary air door butterfly valve and a secondary air door butterfly valve, and air door adjusting handles are arranged on the primary air door butterfly valve and the secondary air door butterfly valve.
5. The burner of an ultra-high turndown ratio furnace as set forth in claim 1, wherein: the back end of the pilot burner is provided with a pilot burner fuel inlet.
6. The burner of an ultra-high turndown ratio furnace as set forth in claim 1, wherein: the main spray gun adopts an annular spray gun structure, and the outer edge of the end surface of the main spray gun is provided with a flame stabilizing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020806523.6U CN212204520U (en) | 2020-05-15 | 2020-05-15 | Burner of heating furnace with super large regulation ratio |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020806523.6U CN212204520U (en) | 2020-05-15 | 2020-05-15 | Burner of heating furnace with super large regulation ratio |
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| CN212204520U true CN212204520U (en) | 2020-12-22 |
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| CN202020806523.6U Active CN212204520U (en) | 2020-05-15 | 2020-05-15 | Burner of heating furnace with super large regulation ratio |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723406A (en) * | 2021-01-07 | 2021-04-30 | 江苏智微新材料科技有限公司 | Device and method for quickly acquiring copper oxide powder special for semiconductor |
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2020
- 2020-05-15 CN CN202020806523.6U patent/CN212204520U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723406A (en) * | 2021-01-07 | 2021-04-30 | 江苏智微新材料科技有限公司 | Device and method for quickly acquiring copper oxide powder special for semiconductor |
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