CN216591707U - Gas combustion flameless low-nitrogen equipment for industrial kiln - Google Patents
Gas combustion flameless low-nitrogen equipment for industrial kiln Download PDFInfo
- Publication number
- CN216591707U CN216591707U CN202123217658.2U CN202123217658U CN216591707U CN 216591707 U CN216591707 U CN 216591707U CN 202123217658 U CN202123217658 U CN 202123217658U CN 216591707 U CN216591707 U CN 216591707U
- Authority
- CN
- China
- Prior art keywords
- gas
- channel
- communicated
- nozzle
- outlet
- 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
Classifications
-
- 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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model relates to the technical field of kiln combustion equipment, and provides flameless low-nitrogen equipment for gas combustion of an industrial kiln, which comprises a combustion chamber, a gas pipe and a nozzle, wherein the combustion chamber is provided with a through cavity and a gas inlet, the gas inlet is communicated with the through cavity, the nozzle is arranged at the end part of the combustion chamber, the nozzle is provided with a first gas inlet and a first gas outlet, the gas pipe is arranged in the through cavity, the first gas inlet is simultaneously communicated with the through cavity and the gas pipe, the first gas outlet is communicated with the inside of the kiln, the nozzle is also provided with a first channel and a second channel, the first gas inlet and the first gas outlet are arranged at two ends of the first channel, the second gas inlet and the second gas outlet are arranged at two ends of the second channel, the second gas outlet is communicated with the middle part of the first channel, and the diameter of the communicating part is smaller than the diameters of the rest parts of the first channel. Through the technical scheme, the problem that the nitrogen content is too high to meet the national requirement when the waste gas is discharged by the common industrial kiln at low cost in the related technology is solved.
Description
Technical Field
The utility model relates to the technical field of kiln combustion equipment, in particular to flameless low-nitrogen equipment for gas combustion for an industrial kiln.
Background
Under the energy structure mainly using coal in China, the industrial kiln is one of main pollution emission sources and is also a household with large energy consumption. The problems of low energy efficiency, excessive pollutant discharge and the like commonly exist in industrial kilns. The temperature of the industrial kiln smoke is low when the industrial kiln smoke is discharged at the terminal, and the temperature condition treated by the SNCR method is difficult to meet. In order to reduce the nitrogen content in the waste gas, the temperature of the flue gas needs to be raised, but the method has large investment and high energy consumption. Therefore, a combustion apparatus applied to an industrial kiln and capable of reducing the nitrogen content in the exhaust gas is needed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a gas combustion flameless low-nitrogen device for an industrial kiln, which solves the problem that the nitrogen content is too high to meet the national requirement when the waste gas is discharged by the common industrial kiln in the related technology at low cost.
The technical scheme of the utility model is as follows: the utility model provides a gas combustion flameless low nitrogen device for industrial kiln, includes combustion chamber, gas pipe and nozzle, the combustion chamber has been seted up and has been run through chamber and air inlet, the air inlet intercommunication run through the chamber, the nozzle is located the tip of combustion chamber, the nozzle has first income gas port and first gas outlet, the gas pipe is arranged in run through the intracavity, first income gas port communicates simultaneously run through the chamber with the gas pipe, inside first gas outlet intercommunication kiln, the nozzle still has first passageway and second passageway, the both ends of first passageway do first income gas port with first gas outlet, the both ends of second passageway are second income gas port and second gas outlet, the second gas outlet intercommunication the middle part of first passageway and intercommunication department diameter are less than all the other department diameters of first passageway.
As a further technical scheme, the nozzle is further provided with a third channel and a fourth channel, a third air inlet and a third air outlet are arranged at two ends of the third channel, a fourth air inlet and a fourth air outlet are arranged at two ends of the fourth channel, the third air inlet is communicated with the through cavity, the third air outlet is communicated with the first channel, the communicated part is located behind the second air outlet, the fourth air inlet is communicated with the inside of the kiln, and the diameter of the fourth air outlet is communicated with the middle part of the third channel, and the diameter of the communicated part is smaller than the diameter of the rest parts of the third channel.
As a further technical scheme, still include the whirl board, the whirl board is located on the nozzle and be located the tip of first passageway, the through hole has been seted up to the whirl board, the through hole runs through the both sides of whirl board.
As a further technical solution, the third channel and the fourth channel are both multiple and are arranged in one-to-one correspondence.
As a further technical scheme, the second channel is multiple, the second air outlets are communicated with the first channel, and the second channel and the fourth channel are arranged at intervals.
The working principle and the beneficial effects of the utility model are as follows: compared with the prior art, the gas combustion flameless low-nitrogen equipment comprises a combustion chamber, a gas pipe and a nozzle, wherein the combustion chamber is provided with a through cavity and a gas inlet, the gas inlet is communicated with the through cavity, the nozzle is arranged at the end part of the combustion chamber, the nozzle is provided with a first channel, a first gas inlet and a first gas outlet are arranged at two ends of the first channel, the gas pipe penetrates through the inner wall of the combustion chamber and is arranged in the through cavity, one end of the gas pipe is connected with a pressurized gas source, the other end of the gas pipe is connected with the first gas inlet, the end part of the through cavity enters combustion-supporting air through the gas inlet, then the combustion-supporting air is pushed into the first channel through the communication with the first gas inlet, and further the gas and the combustion-supporting air enter an industrial kiln; the nozzle still has the second passageway, the second passageway has second income gas port and second gas outlet, the second is gone into inside the gas port intercommunication industrial kiln, the middle part of first passageway of second gas outlet intercommunication, and the diameter of second gas outlet intercommunication department is less than other places of first passageway, just so formed the venturi effect in first passageway, when having fast-speed gas to pass through in the first passageway, the gas that has the temperature in the industrial kiln will enter into in the first passageway from the second passageway, so not only can preheat gas and combustion-supporting gas, can also guarantee that the gas in the stove carries out abundant burning, and then can realize the lower effect of the nitrogen content of exhaust gas.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural diagram of a gas-fired flameless low-nitrogen apparatus for an industrial kiln according to the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a right side view of FIG. 1;
FIG. 4 is a view A-A of FIG. 3;
in the figure:
1. the gas burner comprises a combustion chamber, 2, a gas pipe, 3, a nozzle, 4, a through cavity, 5, a first gas outlet, 6, a first channel, 7, a second channel, 8, a second gas inlet, 9, a third channel, 10, a fourth channel, 11, a third gas inlet, 12, a fourth gas inlet, 13, a rotational flow plate, 14 and a gas inlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.
As shown in fig. 1-2, the embodiment provides a gas-fired flameless low-nitrogen device for industrial kilns, including combustion chamber 1, gas pipe 2 and nozzle 3, combustion chamber 1 has been seted up and has been run through chamber 4 and air inlet 14, air inlet 14 intercommunication runs through chamber 4, the tip of combustion chamber 1 is located to nozzle 3, nozzle 3 has first income gas port and first gas outlet 5, gas pipe 2 is arranged in running through chamber 4, first income gas port communicates simultaneously and runs through chamber 4 and gas pipe 2, first gas outlet 5 communicates inside the kiln, nozzle 3 still has first passageway 6 and second passageway 7, the both ends of first passageway 6 are first income gas port and first gas outlet 5, the both ends of second passageway 7 are second income gas port 8 and second gas outlet, the second gas outlet communicates the middle part of first passageway 6 and communicates the department diameter and is less than the rest department diameters of first passageway 6.
In the embodiment, the gas combustion flameless low-nitrogen equipment comprises a combustion chamber 1, a gas pipe 2 and a nozzle 3, wherein the combustion chamber 1 is provided with a through cavity 4 and a gas inlet 14, the gas inlet 14 is communicated with the through cavity 4, the nozzle 3 is arranged at the end part of the combustion chamber 1, the nozzle 3 is provided with a first channel 6, two ends of the first channel 6 are provided with a first gas inlet and a first gas outlet 5, the gas pipe 2 penetrates through the inner wall of the combustion chamber 1 and is arranged in the through cavity 4, one end of the gas pipe 2 is connected with a pressurized gas source, the other end of the gas pipe is connected with the first gas inlet, the end part of the through cavity 4 enters combustion-supporting air through the gas inlet 14, then the combustion-supporting air is pushed into the first channel 6 through the communication with the first gas inlet, and further the gas and the combustion-supporting air enter into the industrial kiln; the nozzle 3 still has second passageway 7, second passageway 7 has second income gas port 8 and second gas outlet, second income gas port 8 communicates inside the industrial kiln, the middle part of first passageway 6 is communicate to the second gas outlet, and the diameter of second gas outlet intercommunication department is less than other places of first passageway 6, just so formed the venturi effect in first passageway 6, when having fast-speed gas to pass through in first passageway 6, the gas that has the temperature in the industrial kiln will enter into in the first passageway 6 from second passageway 7, so not only can preheat gas and combustion-supporting gas, can also guarantee that the gas in the stove carries out abundant burning, and then can realize the lower effect of the nitrogen content of exhaust gas.
As shown in fig. 3 to 4, based on the same concept as that of the above embodiment, the present embodiment further provides that the nozzle 3 further includes a third channel 9 and a fourth channel 10, two ends of the third channel 9 are a third air inlet 11 and a third air outlet, two ends of the fourth channel 10 are a fourth air inlet 12 and a fourth air outlet, the third air inlet 11 is communicated with the through cavity 4, the third air outlet is communicated with the first channel 6 and the communication position is located behind the second air outlet, the fourth air inlet 12 is communicated with the inside of the kiln, the fourth air outlet is communicated with the middle of the third channel 9 and the diameter of the communication position is smaller than that of the rest of the third channel 9.
In the embodiment, in order to further reduce the nitrogen content in the exhaust gas, the nozzle 3 is further provided with a third channel 9 and a fourth channel 10, a third air inlet 11 and a third air outlet are arranged at two ends of the third channel 9, the third air inlet 11 is communicated with the through cavity 4, the third air outlet is communicated with the middle part of the second channel 7, and the communication position of the third air outlet in the first channel 6 is positioned behind the communication position of the second air outlet in the first channel 6, so that combustion air in the through cavity 4 can enter the industrial kiln through the third channel 9 and the first channel 6; the two ends of the fourth channel 10 are provided with a fourth gas inlet 12 and a fourth gas outlet, the fourth gas inlet 12 is communicated with the inside of the kiln, the fourth gas outlet is communicated with the middle part of the third channel 9, the diameter of the communicated part of the fourth gas outlet in the third channel 9 is smaller than that of other parts in the third channel 9, when high-speed combustion-supporting gas flows through the third channel 9, high-temperature gas in the kiln can sequentially pass through the fourth channel 10, the third channel 9 and the first channel 6 to enter the kiln again, so that the high temperature of the gas in the kiln is utilized, and the gas can be fully combusted. In the same way, the previous embodiment is subjected to the circulation of the gas in the furnace, and the nitrogen content in the waste gas discharged by the industrial kiln can be ensured to be at a lower level every time the circulation is strengthened.
As shown in fig. 3 to 4, based on the same concept as the above embodiments, the present embodiment further provides a swirl plate 13, the swirl plate 13 is disposed on the nozzle 3 and located at the end of the first channel 6, and the swirl plate 13 is provided with a through hole penetrating through two sides of the swirl plate 13.
In this embodiment, in order to guarantee that gas and combustion-supporting air can not have the condition because the turbulent flow appears in interfering each other in entering into the first passageway 6 of nozzle 3, whirl board 13 has been set up at the tip of first passageway 6, the tip top of gas pipe 2 is on whirl board 13, a plurality of through holes have been seted up on whirl board 13, the through hole runs through the both sides of whirl board 13, gas in the gas pipe 2 enters into first passageway 6 with the help of a through hole, the combustion-supporting air who runs through in the chamber 4 enters into first passageway 6 with the help of remaining through hole, because the axis of these through holes all is mutual parallel arrangement, consequently, the turbulent flow can not appear between the gas that enters into in first passageway 6 and the combustion-supporting air.
As shown in fig. 3 to 4, based on the same concept as the above embodiments, the present embodiment further proposes that the third channel 9 and the fourth channel 10 are both provided in plurality and in one-to-one correspondence.
In this embodiment, in order to improve the heat exchange efficiency and the sufficient combustion rate of the high-temperature gas in the furnace, the third channels 9 and the fourth channels 10 are all provided in plurality, and the plurality of third channels 9 and the plurality of fourth channels 10 are provided in one-to-one correspondence, preferably, the number of the third channels 9 and the number of the fourth channels 10 may be four, and the included angle between two adjacent third channels 9 or fourth channels 10 is 90 degrees.
As shown in fig. 3 to 4, based on the same concept as the above embodiment, the present embodiment further proposes that the second channel 7 is plural and the plural second air outlets are all communicated with the first channel 6, and the second channel 7 and the fourth channel 10 are arranged at intervals.
In this embodiment, in order to improve the heat exchange efficiency of the high-temperature gas in the furnace and sufficiently heat the furnace, the second channel 7 may be provided in plurality, the first channel 6 is provided in one, the second channels 7 are circumferentially and uniformly distributed, preferably, the number of the second channels 7 is four, that is, 90 degrees is present between two adjacent second channels 7, and four second channels 7 and four fourth channels 10 are arranged at intervals, that is, an included angle between two adjacent second channels 7 and four adjacent fourth channels 10 is 45 degrees.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a gas combustion flameless low nitrogen device for industrial kiln, includes combustion chamber (1), gas pipe (2) and nozzle (3), combustion chamber (1) has been seted up and has been run through chamber (4) and air inlet (14), air inlet (14) intercommunication run through chamber (4), nozzle (3) are located the tip of combustion chamber (1), nozzle (3) have first income gas mouth and first gas outlet (5), gas pipe (2) are arranged in run through in chamber (4), first income gas mouth communicates simultaneously run through chamber (4) with gas pipe (2), inside first gas outlet (5) intercommunication kiln, its characterized in that, nozzle (3) still have first passageway (6) and second passageway (7), the both ends of first passageway (6) are first income gas mouth with first gas outlet (5), and a second air inlet (8) and a second air outlet are arranged at two ends of the second channel (7), the second air outlet is communicated with the middle part of the first channel (6), and the diameter of the communicated part is smaller than the diameter of the rest parts of the first channel (6).
2. The gas-fired flameless low-nitrogen device for the industrial kiln as recited in claim 1, wherein the nozzle (3) further comprises a third channel (9) and a fourth channel (10), the third channel (9) has a third gas inlet (11) and a third gas outlet at two ends thereof, the fourth channel (10) has a fourth gas inlet (12) and a fourth gas outlet at two ends thereof, the third gas inlet (11) is communicated with the through cavity (4), the third gas outlet is communicated with the first channel (6) and is communicated with the second gas outlet at the rear thereof, the fourth gas inlet (12) is communicated with the inside of the kiln, and the fourth gas outlet is communicated with the middle of the third channel (9) and is communicated with the third channel (9) at a position having a diameter smaller than the diameter of the rest of the third channel (9).
3. The gas-fired flameless low-nitrogen device for the industrial kiln as claimed in claim 2, further comprising a swirl plate (13), wherein the swirl plate (13) is disposed on the nozzle (3) and located at an end of the first channel (6), and the swirl plate (13) is provided with through holes penetrating through two sides of the swirl plate (13).
4. The gas-fired flameless low nitrogen apparatus for industrial kilns according to claim 3, wherein said third channel (9) and said fourth channel (10) are provided in plurality and in one-to-one correspondence.
5. A gas-fired flameless low nitrogen plant for industrial kilns according to claim 4 wherein said second channel (7) is multiple and said second outlet ports are all in communication with said first channel (6), said second channel (7) and said fourth channel (10) being spaced apart.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123217658.2U CN216591707U (en) | 2021-12-20 | 2021-12-20 | Gas combustion flameless low-nitrogen equipment for industrial kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123217658.2U CN216591707U (en) | 2021-12-20 | 2021-12-20 | Gas combustion flameless low-nitrogen equipment for industrial kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216591707U true CN216591707U (en) | 2022-05-24 |
Family
ID=81615667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123217658.2U Active CN216591707U (en) | 2021-12-20 | 2021-12-20 | Gas combustion flameless low-nitrogen equipment for industrial kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216591707U (en) |
-
2021
- 2021-12-20 CN CN202123217658.2U patent/CN216591707U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101392957B (en) | Full BF gas hot blast furnace | |
| CN105222585A (en) | The combustion-supporting energy-saving aluminium-melting furnace of small-sized flue gas | |
| CN107677137B (en) | Energy-saving environment-friendly combustion system of smoke combustion-supporting industrial furnace | |
| WO2020140382A1 (en) | Flow-equalization-type fire piece | |
| CN216591707U (en) | Gas combustion flameless low-nitrogen equipment for industrial kiln | |
| CN214120035U (en) | Combustor and gas equipment | |
| CN107543160B (en) | Ultralow nitrogen gas burner | |
| WO2020140381A1 (en) | Multi-ejector tube type fire plate | |
| CN108954317B (en) | Negative pressure low NO for wall hanging stovexBurner with a burner head | |
| CN203224140U (en) | Efficient energy-saving combustion apparatus of casting annealing furnace | |
| WO2020140384A1 (en) | Gradual combustion type fire plate combustor | |
| CN210004586U (en) | ultra-low nitrogen hot-blast stove | |
| CN209977990U (en) | Low-nitrogen full-premixing steam boiler | |
| CN212132430U (en) | Gas burner | |
| CN201568960U (en) | Multi-stage pulverized coal burner | |
| CN210319999U (en) | Secondary air distribution burner | |
| CN210462995U (en) | Heat accumulating type flue gas recirculation burner and combustion system | |
| CN203385210U (en) | Rows burner of gas water heater | |
| CN213019668U (en) | Self-preheating organic waste gas incinerator | |
| CN213513925U (en) | Organic waste gas incinerator | |
| CN220552108U (en) | Air flow dividing device for wall-mounted boiler burner | |
| CN203501441U (en) | Energy-saving smoke-free boiler | |
| CN218065993U (en) | Flat flame burner | |
| CN213019671U (en) | Compact organic waste gas burns burning furnace | |
| CN216079790U (en) | Direct-fired natural gas hot air supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |