CN2581821Y - Low nitrogen oxide burner - Google Patents
Low nitrogen oxide burner Download PDFInfo
- Publication number
- CN2581821Y CN2581821Y CN 02246913 CN02246913U CN2581821Y CN 2581821 Y CN2581821 Y CN 2581821Y CN 02246913 CN02246913 CN 02246913 CN 02246913 U CN02246913 U CN 02246913U CN 2581821 Y CN2581821 Y CN 2581821Y
- Authority
- CN
- China
- Prior art keywords
- current divider
- plate
- flow divider
- air
- airduct
- 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
Abstract
The utility model relates to a low nitrogen oxide burning head comprising an air pipe, an air mixing hood which is arranged at the front end of the air pipe and is buckled with the air pipe, a flow divider air pipe which is arranged in a housing, a flow divider rear plate, a flow divider front plate, a primary burning head, an annular plate for the primary burning head and air flow dividing blades, wherein, the flow divider air pipe is arranged between the flow divider rear plate and the flow divider front plate, one end is connected with the flow divider rear plate, and the other end is connected with the flow divider front plate; a flow divider annular plate is connected with the flow divider front and rear plates to form an unclosed cavity body of a flow divider; the primary burning head is parallel with the flow divider in arrangement and is arranged at the front part of the flow divider front plate to be connected with the annular plate for the primary burning head; the air flow dividing blades are arranged at a nozzle of the primary burning head and uniformly distributed on the inner surface at the front end of the air mixing hood. The utility model with the advantages of simple structure and no environment pollution is an ideal burning head for burners.
Description
Technical field
The utility model relates to a kind of combustion head, particularly the low nitrogen oxide burning head of burner use.
Background technology
Along with the reinforcement day by day of environmental protection, the NO of the automatic combustor in petroleum industry oil-gas gathering and transportation field discharging
xThe pollution of atmosphere is more and more caused people's common concern.In recent years, external research is in this respect goed deep into gradually, though the domestic certain achievement that obtained awaits further to study.Fuel gas buring can produce a large amount of NO
xAnd emission such as CO, wherein NO
xHarm to human body and environment is the most serious, and it is mainly derived from the burning of fuel.The NO that burning produces
xMainly be NO and NO2, wherein the volumetric ratio of NO and NO2 is about 90%-95%, and system is with NO
xRepresentative.NO
xThe generation approach have three kinds: temperature mode, fast type and fuel type.Mainly be that temperature mode produces a large amount of NO in fuel gas buring
x, burners in prior is owing to the inherent structure of combustion head, NO
xThe discharge capacity height, serious contaminated environment thirsts for having low NO for this reason
xCombustion head occurs, with the protection environment.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of combustion head structure is provided, and makes burner realize low NO
xThe low nitrogen oxide burning head of discharging.
The purpose of this utility model is achieved in that and comprises airduct, place the airduct front end and the mixed fan housing airduct snapping, place plate and current divider header board behind current divider airduct in the housing, the current divider, the primary combustion head, once burn headring plate, air splitterr vanes, it is characterized in that, the current divider airduct places behind the current divider between the plate and current divider header board, and an end is connected with plate behind the current divider, and the other end is connected with the current divider header board; The current divider ring flat-plate is connected with the forward and backward plate of current divider and the non-closed cavity of the forward and backward plate formation current divider of current divider; Primary combustion head and current divider header board be arranged in parallel, are positioned at the front portion of current divider header board and once burn the headring plate and be connected; The air splitterr vanes place the spout place of primary combustion head, are distributed in to mix fan housing front end inner surface.
Compared with prior art, the utility model has the advantages that: simple in structure, NO
xDischarge capacity low, can reduce NO
xAbout 60%, low NO free from environmental pollution substantially
xCombustion head.
The explanation of accompanying drawing drawing
Accompanying drawing is the utility model structural representation.
The specific embodiment
Below in conjunction with drawings and Examples in detail the utility model is described in detail.
The utility model such as accompanying drawing by airduct, place the airduct front end and the mixed fan housing 7 airduct snapping, place plate 2 and current divider header board 4 behind current divider airduct 1 in the housing, the current divider, primary combustion 5, once burn compositions such as headring plate 8, air splitterr vanes 6.Current divider airduct 1 is riveted on behind the current divider between the plate 2 and current divider header board 4, plate 2 riveted joints behind an end and the current divider, and the other end is riveted with current divider header board 4.Current divider ring flat-plate 3 is connected with the forward and backward plate 4,2 of current divider and constitutes the non-closed cavity of current divider with the forward and backward plate 4,2 of current divider, and wherein many group fuel gas holes are arranged in current divider header board 4 stagger arrangement between 1 perforate of current divider airduct.Primary combustion 5 is made up of the annular base plate and the ring flat-plate of porous, be arranged in parallel with current divider header board 4, is arranged on the front portion of current divider header board 4 and once burns headring plate 8 and be connected.Air splitterr vanes 6 place the spout place of primary combustion 5, have a certain degree to be distributed in to mix fan housing 7 front end inner surfaces.The front end that mixes fan housing 7 closes up, and effect is to strengthen circulation in the flue gas, reduces NO
x, improve efficiency of combustion.
In order to reduce NO
xDischarging the utility model adopt stage burning, mix and promote burning, cut apart combustion system and effectively reduce NO
xDischarging.Stage burning: fuel mixes with primary air that the tangible α of the primary combustion of carrying out carries out for 1 time, because lack of air, the fuel overrich, burning is carried out under hypoxia, the heat that combustion process discharged is insufficient, reduced ignition temperature, after primary combustion was finished, still unburnt combustion gas mixed with auxiliary air with smoke mixture again.Carry out second-time burning, make fuel reach completing combustion.During second-time burning, because the existence of the flue gas that primary combustion produces makes that the oxygen concentration of second-time burning process and ignition temperature are all low, so NO
xGeneration is suppressed, and can reduce NO
x30%, and sufficient combustion.
Promote to mix: combustion gas goes out to mix by the header board of current divider at current divider with air, combustion gas this moment and air all are with ejection of thread attitude and spray orifice interlaced arrangement, abundant mixed mist passes the circular Porous Base of the primary combustion head of mesh again, mixing is strengthened again, it is very even that combustion gas this moment mixes with air, therefore ignition temperature is also very even, thereby makes NO
xGeneration is restricted, and can reduce NO
x15%.But the also smooth combustion under low excess air coefficient of this kind structure reduces the discharging of CO simultaneously, improves efficiency of combustion, improves and regulates ratio.
Flame is cut apart: connect several air splitterr vanes at a primary combustion spout place rivet welding, flame is divided into several flammules, because flame is little, area of dissipation is big, and ignition temperature reduces and flue gas shortened in the time of staying of flame high-temperature region, so suppressed NO
xGeneration.Generally can reduce NO
xAbout 15%.The three phases co-falling hangs down NO
x60%, greatly reduced pollution to environment.
The direction of arrow indication is the flow direction of air and fuel in the accompanying drawing.
Claims (3)
1, a kind of low nitrogen oxide burning head, comprise airduct, place the airduct front end and the mixed fan housing airduct snapping, place plate and current divider header board behind current divider airduct in the housing, the current divider, primary combustion head, primary combustion headring plate, air splitterr vanes is characterized in that, the current divider airduct places behind the current divider between the plate and current divider header board, one end is connected with plate behind the current divider, and the other end is connected with the current divider header board; The forward and backward plate of current divider ring flat-plate and current divider connects and composes the non-closed cavity of current divider; Primary combustion head and current divider header board be arranged in parallel, and the front portion that is positioned at the current divider header board is connected with primary combustion headring plate; The air splitterr vanes place the spout place of primary combustion head, are distributed in to mix fan housing front end inner surface.
2, low nitrogen oxide burning head according to claim 1 is characterized in that, the primary combustion head annular base plate and the ring flat-plate of porous is again formed.
3, low nitrogen oxide burning head according to claim 1 is characterized in that, the front end that mixes fan housing closes up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02246913 CN2581821Y (en) | 2002-07-30 | 2002-07-30 | Low nitrogen oxide burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02246913 CN2581821Y (en) | 2002-07-30 | 2002-07-30 | Low nitrogen oxide burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2581821Y true CN2581821Y (en) | 2003-10-22 |
Family
ID=33718026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02246913 Expired - Lifetime CN2581821Y (en) | 2002-07-30 | 2002-07-30 | Low nitrogen oxide burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2581821Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100572916C (en) * | 2007-06-12 | 2009-12-23 | 上海诺特飞博燃烧设备有限公司 | The super mixed method and the device thereof of industrial burner gaseous fuel and combustion air |
| CN102052675B (en) * | 2009-11-06 | 2012-08-08 | 贵州黎阳航空动力有限公司 | Wide flame stabilization burning head for gas burner |
-
2002
- 2002-07-30 CN CN 02246913 patent/CN2581821Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100572916C (en) * | 2007-06-12 | 2009-12-23 | 上海诺特飞博燃烧设备有限公司 | The super mixed method and the device thereof of industrial burner gaseous fuel and combustion air |
| CN102052675B (en) * | 2009-11-06 | 2012-08-08 | 贵州黎阳航空动力有限公司 | Wide flame stabilization burning head for gas burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120730 Granted publication date: 20031022 |