CN201724222U - Low NOx emission burning head for gas burner - Google Patents
Low NOx emission burning head for gas burner Download PDFInfo
- Publication number
- CN201724222U CN201724222U CN200920125859XU CN200920125859U CN201724222U CN 201724222 U CN201724222 U CN 201724222U CN 200920125859X U CN200920125859X U CN 200920125859XU CN 200920125859 U CN200920125859 U CN 200920125859U CN 201724222 U CN201724222 U CN 201724222U
- Authority
- CN
- China
- Prior art keywords
- burning
- gas
- inner liner
- low nox
- burner inner
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000002485 combustion reaction Methods 0.000 claims description 24
- 239000007921 spray Substances 0.000 claims description 15
- 238000005507 spraying Methods 0.000 abstract 4
- 230000003247 decreasing effect Effects 0.000 abstract 3
- 238000002955 isolation Methods 0.000 abstract 2
- 230000006698 induction Effects 0.000 abstract 1
- 239000000779 smoke Substances 0.000 abstract 1
- 239000003381 stabilizer Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 22
- 239000003546 flue gas Substances 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 239000000567 combustion gas Substances 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 206010020843 Hyperthermia Diseases 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000036031 hyperthermia Effects 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 208000030303 breathing problems Diseases 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Images
Abstract
The utility model relates to a low NOx emission burning head for a gas burner, comprising a flame barrel, a gas spraying head, a cyclone flame stabilizer, an isolation barrel, a spraying opening and the like. The benefits are as follows: the semi-premixed burning way is adopted; the induction type gas spraying head realizes reasonable gas concentration distribution, so the gas can be completely burned when the coefficient of remained air is low; the burning-supporting air is separated into two parts by the isolation barrel to respectively participate in burning, and then the burning temperature is decreased; the spraying opening induces and strengthens the secondary air to participate in burning, meanwhile, the flame flow is accelerated, the smoke is ejected from the return holes of the flame barrel or is exhausted from the hearth, and then the burning temperature is decreased. Under the condition of ensuring good burning, the low O2 burning is realized, the burning temperature is decreased, and the purpose of low NOx emission is realized.
Description
Technical field
The utility model relates to a kind of combustion head that is used for gas burner, relates in particular to the low NOx drainage combustion head that a kind of gas burner is used.
Background technology
Fuel gas buring can produce atmosphere pollution, particularly NOx.NOx can form acid rain, photochemical smog and cause breathing problem etc., and is very harmful.Gas burner is generally used at home.At present, its combustion head all adopts burner inner liner, gas spray head and flame holder combining structure form, and combustion system is a diffusion combustion, and combustion gas and air blending are not very meticulous like this, and the air excess air coefficient is bigger, and the inhomogeneous localized hyperthermia that causes of flame temperature makes O in the flue gas
2The content height, NOx growing amount height, i.e. O
2Be 3～5%, NOx is 100～200ppm.Energy-conservation and environmental protection is themes of the times, and gas burner has been proposed higher energy-conservation and environmental requirement.The related combustion head of the utility model adopts the multiple technologies measure, can realize low O
2Burning, low NOx drainage, i.e. O in the combustion product gases
2≤ 2%, NOx≤60ppm.
Summary of the invention
The utility model technical issues that need to address are: combustion head hangs down O organizing under the good combustion state
2Burning and reduction ignition temperature are to realize the low NOx drainage of flue gas.
In order to solve the problems of the technologies described above, adopt technical measures such as air swirl, air participate in burning at twice, combustion gas guiding jet dispenses, flue gas recirculation, and be achieved through the following technical solutions:
The utility model is the low NOx drainage combustion head that a kind of gas burner is used; The low NOx drainage combustion head comprises burner inner liner, gas spray head, eddy flow flame holder, isolating cylinder, spout, igniting and flame detecting electrode etc.; On the combustion head axis direction, burner inner liner and isolating cylinder coaxial arrangement, burner inner liner outside, isolating cylinder is the circular passage between the two interior; Gas spray head is the guiding structure, is arranged on the axis, and the eddy flow flame holder is contained in its downstream, between distance can regulate the two outside suit isolating cylinder; In burner inner liner, spout is installed in eddy flow flame holder downstream, and distance can be regulated, and the burner inner liner return port is in appropriate location, spout downstream.
Compared with prior art, the beneficial effects of the utility model are: adopt half premixed combustion mode; The guiding gas spray head realizes that rational gas concentration distributes, and helps the completing combustion under the low excess air coefficient of air; Isolating cylinder participates in burning to the combustion air separated into two parts respectively, avoids the localized hyperthermia of burning; Spout guides auxiliary air to participate in burning on the one hand, quickens flame flow on the other hand to entrainment flue gas from burner inner liner return port injection flue gas with from burner hearth, and ignition temperature is reduced.Combustion head is being organized under the good combustion state, realizes low O
2Burn, reduce ignition temperature, reach the purpose of low NOx drainage.
Description of drawings
Fig. 1 is the combustion head structure chart.
1-igniting and flame detecting electrode 2-gas spray head 3-eddy flow flame holder 4-isolating cylinder 5-spout 6-burner inner liner
Fig. 2 is the gas spray head structural representation.
7-tracheae 8-electrode supporting 9-jet pipe 10-joint
Fig. 3 is the right side view of Fig. 2
The specific embodiment
As seen from Figure 1: combustion head mainly is made up of gas spray head 2, igniting and flame detecting electrode 1, eddy flow flame holder 3, isolating cylinder 4, burner inner liner 6 and spout 5 etc.Be installed in igniting and flame detecting electrode 1, eddy flow flame holder 3 and isolating cylinder 4 are arranged on the gas spray head 2 in the burner inner liner 6; Eddy flow flame holder 3 is contained in the downstream of gas spray head 2, outside suit isolating cylinder 4; Spout 5 is installed in burner inner liner 6 inner outlet ends.
As can be seen, gas spray head 2 is the guiding structure in Fig. 2 and Fig. 3, is made up of a tracheae 7, electrode supporting 8, jet pipe 9 and joint 10 etc., and jet pipe 9 is installed with tracheae 7 by uniform angle and is communicated with; Electrode supporting 8 is used for igniting and flame detecting electrode 1 are installed, and joint 10 is used to install eddy flow flame holder 3.Circumferentially uniform jet aperture is arranged on the tracheae 7.Jet pipe 9 circumferentially uniform on tracheae 7 all is evenly equipped with gas injection hole on the height and position of jet pipe 9.
Spout 5 is a throat structure, and steering current is strengthened blending, quickens air-flow.Circumferentially uniform return port is arranged on the burner inner liner 6.
Described combustion air flows in burner inner liner 6, and isolating cylinder 4 is the air separated into two parts, and air is called primary air in the tube, and the tube outer air is called auxiliary air.The combustion gas and the primary air blending of the gas injection hole ejection on 7 jet apertures of the tracheae on the gas spray head 2 and jet pipe 9, ignitor in igniting and flame detecting electrode 1 draws arc spark air--the combustion gas mixing gas that ignites to eddy flow flame holder 3, at the stable flame of eddy flow flame holder 3 back formation.Secondary wind participates in burning under the guiding of spout 5.Spout 5 sprays air-flow at a relatively high speed, on the one hand from burner inner liner 6 return port injection flue gases, entrainments flue gas on the other hand beyond burner inner liner 6 outlets.
Claims (3)
1. low NOx drainage combustion head that gas burner is used, comprise burner inner liner (6), gas spray head (2), eddy flow flame holder (3), isolating cylinder (4), spout (5) and igniting and flame detecting electrode (1), it is characterized in that: burner inner liner and isolating cylinder coaxial arrangement, burner inner liner outside, isolating cylinder is the circular passage between the two interior; Gas spray head is arranged on the axis, and the eddy flow flame holder is contained in its downstream, the two outer suit isolating cylinder; In burner inner liner, spout is installed in eddy flow flame holder downstream, and the burner inner liner return port is in the spout downstream.
2. low NOx drainage combustion head according to claim 1, it is characterized in that: described gas spray head is the guiding structure, is made of tracheae, a jet pipe, and jet pipe is installed with tracheae by uniform angle and is communicated with, circumferentially uniform jet aperture is arranged on the tracheae, be evenly equipped with jet aperture on the jet pipe.
3. low NOx drainage combustion head according to claim 1 is characterized in that: described spout is a throat structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920125859XU CN201724222U (en) | 2009-11-26 | 2009-11-26 | Low NOx emission burning head for gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920125859XU CN201724222U (en) | 2009-11-26 | 2009-11-26 | Low NOx emission burning head for gas burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201724222U true CN201724222U (en) | 2011-01-26 |
Family
ID=43492558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920125859XU Expired - Lifetime CN201724222U (en) | 2009-11-26 | 2009-11-26 | Low NOx emission burning head for gas burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201724222U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276580A (en) * | 2014-06-04 | 2016-01-27 | 贵州黎阳天翔科技有限公司 | Combustion head device of large-area smoke disinfection and epidemic prevention equipment |
| CN105546580A (en) * | 2015-12-29 | 2016-05-04 | 中国科学院工程热物理研究所 | Combustor ejector nozzle device |
| CN106196059A (en) * | 2016-08-26 | 2016-12-07 | 中能服能源科技股份有限公司 | A kind of low nitrogen oxide burner structure |
| CN107036094A (en) * | 2017-06-06 | 2017-08-11 | 河北巨川节能科技有限公司 | Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head |
| CN110440261A (en) * | 2018-05-02 | 2019-11-12 | 上海凌云瑞升燃烧设备有限公司 | The low NOx gas burner injection apparatus of disperse free flame |
| CN111457371A (en) * | 2020-05-12 | 2020-07-28 | 华侨大学 | Low-nitrogen burner |
| CN112344371A (en) * | 2020-11-06 | 2021-02-09 | 徐州燃烧控制研究院有限公司 | Flame tube, industrial low-nitrogen combustor and step-by-step amplification method of gas flame |
| CN115406100A (en) * | 2022-09-05 | 2022-11-29 | 南京宜热纵联节能科技有限公司 | Indirect heat exchange type hot blast stove |
| CN117329514A (en) * | 2023-10-27 | 2024-01-02 | 瓦兰热能设备(无锡)有限公司 | Nozzle control device of combustor |
-
2009
- 2009-11-26 CN CN200920125859XU patent/CN201724222U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276580A (en) * | 2014-06-04 | 2016-01-27 | 贵州黎阳天翔科技有限公司 | Combustion head device of large-area smoke disinfection and epidemic prevention equipment |
| CN105546580A (en) * | 2015-12-29 | 2016-05-04 | 中国科学院工程热物理研究所 | Combustor ejector nozzle device |
| CN106196059A (en) * | 2016-08-26 | 2016-12-07 | 中能服能源科技股份有限公司 | A kind of low nitrogen oxide burner structure |
| CN107036094A (en) * | 2017-06-06 | 2017-08-11 | 河北巨川节能科技有限公司 | Tai Ji vortex diffusion type low-nitrogen oxide discharging combustion head |
| CN110440261A (en) * | 2018-05-02 | 2019-11-12 | 上海凌云瑞升燃烧设备有限公司 | The low NOx gas burner injection apparatus of disperse free flame |
| CN111457371B (en) * | 2020-05-12 | 2024-06-07 | 华侨大学 | Low nitrogen burner |
| CN111457371A (en) * | 2020-05-12 | 2020-07-28 | 华侨大学 | Low-nitrogen burner |
| CN112344371A (en) * | 2020-11-06 | 2021-02-09 | 徐州燃烧控制研究院有限公司 | Flame tube, industrial low-nitrogen combustor and step-by-step amplification method of gas flame |
| CN112344371B (en) * | 2020-11-06 | 2022-04-19 | 徐州燃烧控制研究院有限公司 | Flame tube, industrial low-nitrogen combustor and step-by-step amplification method of gas flame |
| CN115406100A (en) * | 2022-09-05 | 2022-11-29 | 南京宜热纵联节能科技有限公司 | Indirect heat exchange type hot blast stove |
| CN115406100B (en) * | 2022-09-05 | 2024-01-12 | 南京宜热纵联节能科技有限公司 | Indirect heat exchange type hot blast stove |
| CN117329514A (en) * | 2023-10-27 | 2024-01-02 | 瓦兰热能设备(无锡)有限公司 | Nozzle control device of combustor |
| CN117329514B (en) * | 2023-10-27 | 2024-05-14 | 瓦兰热能设备(无锡)有限公司 | Nozzle control device of combustor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUIZHOU LIYANG AERO-ENGINE CO., LTD. Free format text: FORMER OWNER: GUIZHOU AERONAUSTIC ENGINE INST. Effective date: 20110415 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 561102 MAILBOX 300, PINGBA COUNTY, GUIZHOU PROVINCE TO: 561102 MAILBOX 207, PINGBA COUNTY, GUIZHOU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110415 Address after: 561102 Guizhou province Pingba County box 207 Patentee after: Guizhou Liyang Aerospace Power Co., Ltd. Address before: 561102 Guizhou province Pingba County box 300 Patentee before: Guizhou Aeronautical Engine Institute |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guizhou Liyang Tianxiang Technology Co., Ltd. Assignor: Guizhou Liyang Aerospace Power Co., Ltd. Contract record no.: 2012520000007 Denomination of utility model: Low NOx emission burning head for gas burner Granted publication date: 20110126 License type: Exclusive License Record date: 20120510 |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guizhou Liyang Tianxiang Technology Co., Ltd. Assignor: Guizhou Liyang Aerospace Power Co., Ltd. Contract record no.: 2012520000007 Denomination of utility model: Low NOx emission burning head for gas burner Granted publication date: 20110126 License type: Exclusive License Record date: 20120510 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170801 Address after: 550014 Guizhou city of Guiyang province one of Guiyang national hi tech Industrial Development Zone, ecological science and Technology Industrial Park Branch Road No. 357 Patentee after: Guizhou Liyang Tianxiang Technology Co., Ltd. Address before: 561102 Guizhou province Pingba County box 207 Patentee before: Guizhou Liyang Aerospace Power Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |