CN215951397U - Low-nitrogen combustor - Google Patents
Low-nitrogen combustor Download PDFInfo
- Publication number
- CN215951397U CN215951397U CN202122532212.2U CN202122532212U CN215951397U CN 215951397 U CN215951397 U CN 215951397U CN 202122532212 U CN202122532212 U CN 202122532212U CN 215951397 U CN215951397 U CN 215951397U
- Authority
- CN
- China
- Prior art keywords
- chamber
- combustion
- sleeve
- heat dissipation
- cavity
- 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.)
- Active
Links
Images
Abstract
The utility model provides a low-nitrogen combustor, includes cooling air supply chamber, burning chamber and heat dissipation chamber, cooling air supply chamber and the one end intercommunication in heat dissipation chamber, the burning chamber sets up at the heat dissipation intracavity, be provided with heat dissipation channel between burning chamber and the heat dissipation chamber, the one end and the heat dissipation chamber intercommunication in keeping away from cooling air supply chamber in burning chamber, the other end intercommunication in heat dissipation chamber has the chamber of giving vent to anger, it is provided with the gas outlet on the chamber to give vent to anger, the one end in burning chamber is connected with the combustion head, the combustion head is connected with combustion air supply chamber and fuel supply device. The gas temperature after the combustion of the combustion head is reduced to control the generation of NOx, and the gas temperature control device is simple in structure and reasonable in arrangement.
Description
Technical Field
The utility model relates to the technical field of burners, in particular to a low-nitrogen burner.
Background
The low-nitrogen combustor is a combustor with low NOx emission in the fuel combustion process, and the low-NOx combustor can reduce the emission of nitrogen oxides in the combustion process. The nitrogen oxides produced during combustion are primarily NO and NO2, which are commonly referred to as NOx.
Since the gas temperature generated after combustion of the burner is too high to increase NOx, in order to solve the above technical problems, a radiant tube is generally connected to a combustion head of the burner, and the gas temperature generated after combustion of the burner is not controlled well in a case where an auxiliary radiant tube is not conveniently connected. This is a disadvantage of the prior art.
Disclosure of Invention
The utility model aims to solve the technical problem that the prior art is insufficient, and provides a low-nitrogen combustor which controls the generation of NOx by reducing the temperature of gas after combustion of a combustion head, and is simple in structure and reasonable in arrangement.
The scheme is realized by the following technical measures: the utility model provides a low-nitrogen combustor, includes cooling air supply chamber, burning chamber and heat dissipation chamber, cooling air supply chamber and the one end intercommunication in heat dissipation chamber, the burning chamber sets up at the heat dissipation intracavity, be provided with heat dissipation channel between burning chamber and the heat dissipation chamber, the one end and the heat dissipation chamber intercommunication in keeping away from cooling air supply chamber in burning chamber, the other end intercommunication in heat dissipation chamber has the chamber of giving vent to anger, it is provided with the gas outlet on the chamber to give vent to anger, the one end in burning chamber is connected with the combustion head, the combustion head is connected with combustion air supply chamber and fuel supply device.
By adopting the technical scheme, the fuel and the air required by combustion are continuously supplied to the combustion head, after the fuel is ignited, the fuel is combusted in the combustion cavity, and because the combustion cavity is arranged in the heat dissipation cavity, the air in the heat dissipation cavity carries the high-temperature gas entering the heat dissipation cavity from the combustion cavity to enter the air outlet cavity, and the heat is supplied to the outside from the air outlet. The temperature of high-temperature gas generated in the combustion chamber is controlled by air entering the heat dissipation chamber from the heat dissipation channel, so that the generation of NOx is controlled. Generally, when the temperature of the gas discharged from the gas outlet chamber is 360 ℃ to 420 ℃, the amount of NOx generated by burning the fuel (natural gas) is small.
Preferably, a flow distribution plate is arranged between the combustion cavity and the air outlet cavity, and the flow distribution plate is fixedly arranged in the heat dissipation cavity. By adopting the technical scheme, the gas inlet cavity is provided with the flow distribution plate, so that the gas entering the gas outlet cavity can be distributed.
Preferably, a spoiler is obliquely arranged between the combustion cavity and the air outlet cavity, one end of the spoiler is fixedly connected with the heat dissipation cavity, and a spoiler through hole is formed in the spoiler. By adopting the technical scheme, the spoiler is arranged, so that air entering the heat dissipation cavity from the heat dissipation channel and high-temperature air generated in the combustion cavity can be fully mixed.
Preferably, one or more air outlet holes are formed in the air outlet cavity, and a guide plate is connected to each air outlet hole. Adopt this technical scheme, set up one or more ventholes as required, satisfy the needs of heat supply, be provided with the guide plate and be convenient for the gas after mixing to discharge from the gas outlet.
Preferably, the heat dissipation air supply cavity is connected with a heat dissipation fan. By adopting the technical scheme, the heat radiation fan is adopted to blow air required by heat radiation into the heat radiation air supply cavity.
Preferably, the combustion head comprises a fuel pipe, the fuel pipe being connected to a fuel supply; a sleeve I is fixedly connected to the periphery of the fuel pipe, a plurality of through holes I are formed in a baffle plate fixedly connected with the fuel pipe on the sleeve I, a ventilation gap I is formed between the sleeve I and the fuel pipe, an air inlet hole communicated with a combustion air supply cavity is formed in the fuel pipe, and the air inlet hole is formed in the outer portion of the sleeve I; a sleeve II is fixedly arranged on the periphery of the sleeve I, a through hole II is formed in the fixed connection position of the sleeve I and the sleeve II, and a ventilation gap II is formed between the sleeve I and the sleeve II; the combustion air supply cavity is communicated with the ventilation gap I through a through hole I, and the combustion air supply cavity is communicated with the ventilation gap II through a through hole II; the fuel pipe, the sleeve I and the sleeve II all extend into the combustion chamber. An igniter and a flame detector which can extend into the sleeve I are fixedly connected to the sleeve I. By adopting the technical scheme, the air entering the fuel pipe from the air inlet hole is mixed with the fuel at the first stage; the fuel sprayed from the fuel pipe and the air entering the sleeve I from the ventilation gap I are subjected to secondary combustion in the sleeve I; air enters the sleeve II from the ventilation gap II and is subjected to three-stage combustion at the tail end of the sleeve I; fuel is introduced into the fuel pipe through a fuel supply device.
Preferably, the tail end of the fuel pipe extends into the sleeve I, and the length of the sleeve II is larger than that of the sleeve I.
Preferably, the combustion air supply chamber is connected with a combustion air supply fan. By adopting the technical scheme, the air is supplied to the fuel air supply cavity by the combustion air supply fan.
Therefore, compared with the prior art, the utility model has substantive characteristics and progress, and the beneficial effects of the implementation are also obvious.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention (with the front side wall of the housing and the front side wall of the heat dissipation chamber removed);
FIG. 3 is a schematic view of the internal structure of the present invention (with the front side wall of the housing removed);
FIG. 4 is a first schematic view (with the front side wall of the heat dissipation chamber removed) of the connection structure of the combustion chamber and the heat dissipation chamber;
FIG. 5 is a first schematic view (with the front side wall of the heat dissipation chamber removed) of the connection structure of the combustion chamber and the heat dissipation chamber;
FIG. 6 is a schematic perspective view of the burner head;
FIG. 7 is a schematic cross-sectional view of the burner head;
fig. 8 is a schematic structural view of the air outlet cavity.
In the figure: 1-housing, 2-heat dissipation air supply chamber, 3-heat dissipation chamber, 4-combustion chamber, 5-combustion head, 5.1-fuel pipe, 5.1.1-air inlet, 5.2-sleeve I, 5.2.1-through hole I, 5.3-sleeve II, 5.4-ventilation gap I, 5.5-ventilation gap II, 5.6-through hole II, 6-flow divider, 7-flow divider, 7.1-flow divider, 8-air outlet chamber, 8.1-air outlet, 8.2-flow divider, 9-heat dissipation channel, 10-combustion air supply chamber.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments and drawings. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
As shown in the figure, a low-nitrogen combustor, including cooling air supply chamber 2, burning chamber 4 and heat dissipation chamber 3, cooling air supply chamber 2 and the one end intercommunication in heat dissipation chamber 3, burning chamber 4 sets up in heat dissipation chamber 3, be provided with heat dissipation channel 9 between burning chamber 4 and the heat dissipation chamber 3, heat dissipation channel 9 sets up both sides around burning chamber 4, burning chamber 4 is in the one end and the heat dissipation chamber 3 intercommunication of keeping away from cooling air supply chamber 2, the other end intercommunication in heat dissipation chamber 3 has air outlet chamber 8, be provided with gas outlet 8.1 on the air outlet chamber 8, the lower extreme in burning chamber 4 is connected with combustion head 5, combustion head 5 is connected with combustion air supply chamber 10 and fuel supply device (not shown in the figure).
Furthermore, a flow distribution plate 6 is arranged between the combustion cavity 4 and the air outlet cavity 8, and the flow distribution plate 6 is vertically and fixedly arranged in the heat dissipation cavity 3.
Further, a spoiler 7 which is obliquely arranged from top to bottom is arranged between the combustion cavity 4 and the air outlet cavity 8, the upper end of the spoiler 7 is fixedly connected with the upper end of the heat dissipation cavity 3, and a spoiler through hole 7.1 is formed in the spoiler 7.
Furthermore, one or more air outlet holes 8.1 are arranged on the air outlet cavity 8, and a guide plate 8.2 is connected to the air outlet holes 8.1.
Further, a heat radiation fan (not shown in the figure) is connected to the heat radiation air supply chamber 2.
Further, the combustion head 5 comprises a fuel pipe 5.1, and the fuel pipe 5.1 is connected with a fuel supply device; a sleeve I5.2 is fixedly connected to the periphery of the fuel pipe 5.1, a plurality of through holes I5.2.1 are formed in a baffle plate fixedly connected with the fuel pipe 5.1 on the sleeve I5.2, a ventilation gap I5.4 is formed between the sleeve I5.2 and the fuel pipe 5.1, an air inlet 5.1.1 communicated with the combustion air supply cavity 10 is formed in the fuel pipe 5.1, and the air inlet 5.1.1 is arranged outside the sleeve I5.2; a sleeve II 5.3 is fixedly arranged on the periphery of the sleeve I5.2, a through hole II 5.6 is arranged at the fixed connection position of the sleeve I5.2 and the sleeve II 5.3, and a ventilation gap II 5.5 is arranged between the sleeve I5.2 and the sleeve II 5.3; the combustion air supply cavity 10 is communicated with a ventilation gap I5.4 through a through hole I5.2.1, and the combustion air supply cavity 10 is communicated with a ventilation gap II 5.5 through a through hole II 5.6; the fuel pipe 5.1, the sleeve I5.2 and the sleeve II 5.3 all extend into the combustion chamber 4. An igniter and a flame detector (not shown in the figure) which can extend into the sleeve I5.2 are fixedly connected to the sleeve I5.2.
Furthermore, the end of the fuel pipe 5.1 extends into the sleeve I5.2, and the length of the sleeve II 5.3 is larger than that of the sleeve I5.2.
Further, a combustion air supply fan (not shown) is connected to the combustion air supply chamber 10.
The fuel and the air required by combustion are continuously supplied to the combustion head 5, after the fuel is ignited, the fuel is combusted in the combustion cavity 4, the combustion cavity 4 is arranged in the heat dissipation cavity 3, the air in the heat dissipation cavity 3 carries the high-temperature gas entering the heat dissipation cavity 3 from the combustion cavity 4 to enter the air outlet cavity 8, and the heat is supplied to the outside from the air outlet hole 8.1. The temperature of the high-temperature gas generated in the combustion chamber 4 is controlled by the air introduced into the heat dissipation chamber 3 from the heat dissipation passage 9, thereby controlling the generation of NOx. Generally, when the temperature of the gas discharged from the gas outlet chamber 8 is 360 ℃ to 420 ℃, the amount of NOx generated by burning the fuel (natural gas) is small.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features and inventive features disclosed herein.
Claims (9)
1. A low-nitrogen combustor is characterized in that: including cooling air supply chamber (2), combustion chamber (4) and heat dissipation chamber (3), cooling air supply chamber (2) and the one end intercommunication in heat dissipation chamber (3), combustion chamber (4) set up in heat dissipation chamber (3), be provided with heat dissipation passageway (9) between combustion chamber (4) and heat dissipation chamber (3), combustion chamber (4) are in the one end and the heat dissipation chamber (3) intercommunication of keeping away from cooling air supply chamber (2), the other end intercommunication in heat dissipation chamber (3) has air outlet chamber (8), be provided with gas outlet (8.1) on air outlet chamber (8), the one end in combustion chamber (4) is connected with combustion head (5), combustion head (5) are connected with combustion air supply chamber (10) and fuel supply device.
2. The combustion engine of claim 1, wherein: a flow distribution plate (6) is arranged between the combustion cavity (4) and the air outlet cavity (8), and the flow distribution plate (6) is fixedly arranged in the heat dissipation cavity (3).
3. The combustion engine as set forth in claim 1 or 2, wherein: a spoiler (7) which is obliquely arranged is arranged between the combustion cavity (4) and the air outlet cavity (8), one end of the spoiler (7) is fixedly connected with the heat dissipation cavity (3), and a spoiler through hole (7.1) is formed in the spoiler (7).
4. The combustion engine of claim 1, wherein: the air outlet cavity (8) is provided with one or more air outlet holes (8.1), and the air outlet holes (8.1) are connected with a guide plate (8.2).
5. The combustion engine of claim 1, wherein: the heat dissipation air supply cavity (2) is connected with a heat dissipation fan.
6. The combustion engine of claim 1, wherein: the burner head (5) comprises a fuel pipe (5.1), the fuel pipe (5.1) being connected to a fuel supply; a sleeve I (5.2) is fixedly connected to the periphery of the fuel pipe (5.1), a plurality of through holes I (5.2.1) are formed in a baffle plate fixedly connected with the fuel pipe (5.1) on the sleeve I (5.2), a ventilation gap I (5.4) is formed between the sleeve I (5.2) and the fuel pipe (5.1), an air inlet hole (5.1.1) communicated with the combustion air supply cavity (10) is formed in the fuel pipe (5.1), and the air inlet hole (5.1.1) is formed in the outer portion of the sleeve I (5.2); a sleeve II (5.3) is fixedly arranged on the periphery of the sleeve I (5.2), a through hole II (5.6) is arranged at the fixed joint of the sleeve I (5.2) and the sleeve II (5.3), and a ventilation gap II (5.5) is arranged between the sleeve I (5.2) and the sleeve II (5.3); the combustion air supply cavity (10) is communicated with the ventilation gap I (5.4) through a through hole I (5.2.1), and the combustion air supply cavity (10) is communicated with the ventilation gap II (5.5) through a through hole II (5.6); the fuel pipe (5.1), the sleeve I (5.2) and the sleeve II (5.3) all extend into the combustion chamber (4).
7. The combustion engine of claim 6, wherein: an igniter and a flame detector which can extend into the sleeve I (5.2) are fixedly connected to the sleeve I (5.2).
8. The combustion engine of claim 6, wherein: the tail end of the fuel pipe (5.1) extends into the sleeve I (5.2), and the length of the sleeve II (5.3) is larger than that of the sleeve I (5.2).
9. The combustion engine of claim 6, wherein: the combustion air supply cavity (10) is connected with a combustion air supply fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122532212.2U CN215951397U (en) | 2021-10-21 | 2021-10-21 | Low-nitrogen combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122532212.2U CN215951397U (en) | 2021-10-21 | 2021-10-21 | Low-nitrogen combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215951397U true CN215951397U (en) | 2022-03-04 |
Family
ID=80413716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122532212.2U Active CN215951397U (en) | 2021-10-21 | 2021-10-21 | Low-nitrogen combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215951397U (en) |
-
2021
- 2021-10-21 CN CN202122532212.2U patent/CN215951397U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109579009B (en) | Burner device with low nitrogen oxide emission | |
| WO2023030467A1 (en) | Combustion chamber having double fuel pipes and gas turbine | |
| CN208920103U (en) | The axially staged combustion chamber of gas turbine | |
| CN109695877A (en) | A kind of two-stage combustion formula fire row combustor | |
| CN215951397U (en) | Low-nitrogen combustor | |
| CN211902870U (en) | High-temperature flue gas multi-stage backflow low-nitrogen combustor | |
| CN111089289A (en) | Multistage internal circulation low-nitrogen gas burner device | |
| CN216159090U (en) | Dual-fuel-tube combustion chamber and gas turbine | |
| CN111121005B (en) | Decoupling gas burner and using method thereof | |
| CN210165377U (en) | Energy-saving low-nitrogen combustor and energy-saving low-nitrogen combustion system | |
| WO2020221366A1 (en) | Combustion assembly and wall-mounted stove | |
| CN214094449U (en) | Ultralow nitrogen combustor intelligence control system | |
| CN109469900A (en) | A kind of burner head and the burner including the burner head | |
| CN220582452U (en) | High-efficient low nitrogen carbon black tail gas burner | |
| CN220152729U (en) | Gradually-expanding injection burner | |
| CN219933967U (en) | Gradually-expanding injection full-premix burner | |
| CN216431714U (en) | Combustion head with flue gas internal circulation ultralow nitrogen NOx content less than or equal to 50mg | |
| CN220771106U (en) | Heat accumulating type low-nitrogen mixing device | |
| CN215372474U (en) | Combustion engine | |
| CN218820374U (en) | Low-nitrogen burner combustion head suitable for multiple working conditions | |
| CN214406048U (en) | Low oxygen type water-cooling ultralow nitrogen water-cooling combustor | |
| CN215446457U (en) | Combustion engine | |
| CN218001492U (en) | Conical low-nitrogen gas burner | |
| CN210951902U (en) | A kind of burner | |
| CN201803466U (en) | High-power combustion system of positive displacement gas water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |