CN113898945B - Tempering preventing device for gas mixing type burner - Google Patents
Tempering preventing device for gas mixing type burner Download PDFInfo
- Publication number
- CN113898945B CN113898945B CN202111245743.1A CN202111245743A CN113898945B CN 113898945 B CN113898945 B CN 113898945B CN 202111245743 A CN202111245743 A CN 202111245743A CN 113898945 B CN113898945 B CN 113898945B
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- pipe
- nozzle
- air
- fixed mounting
- gas
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- 238000005496 tempering Methods 0.000 title claims description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 52
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000001257 hydrogen Substances 0.000 claims abstract description 37
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 37
- 239000003345 natural gas Substances 0.000 claims abstract description 26
- 230000001681 protective effect Effects 0.000 claims abstract description 24
- 239000007789 gas Substances 0.000 claims abstract description 23
- 238000002485 combustion reaction Methods 0.000 claims abstract description 21
- 238000011084 recovery Methods 0.000 claims description 15
- 230000001502 supplementing effect Effects 0.000 claims description 14
- 230000008859 change Effects 0.000 claims description 2
- 230000000750 progressive effect Effects 0.000 claims description 2
- 230000003247 decreasing effect Effects 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 5
- 239000007921 spray Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/78—Cooling burner parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
- F23D14/82—Preventing flashback or blowback
-
- 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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
The invention relates to the technical field of heat energy engineering, and discloses an anti-backfire device for a gas mixing type combustor, which comprises a shell, wherein a mixing pipe cavity is fixedly arranged at one end of an inner cavity of the shell, a combustion cavity positioned in the inner cavity of the shell is fixedly arranged at one side of the mixing pipe cavity, and four hydrogen pipes are fixedly arranged in the inner cavity of the mixing pipe cavity. According to the invention, the first nozzle is cooled by utilizing the flow of air, so that the flame propagation speed of hydrogen is reduced, and meanwhile, the flame propagation speed of natural gas is increased, the backfire phenomenon is effectively prevented, the diameter value of the pipe body of the protective pipe group is designed to be changed progressively, when the air flows in the pipe body of the protective pipe group positioned on the outer surface of the first nozzle, the heat absorption deficiency caused by the heat contained in the air is effectively compensated, and when the air flows in the pipe body of the protective pipe group positioned on the outer surface of the second nozzle, the problem that the reverse heat conduction phenomenon occurs at the second nozzle and the front end opening of the second nozzle is reversely cooled can be avoided.
Description
Technical Field
The invention relates to the technical field of heat energy engineering, in particular to an anti-backfire device for a gas mixing type combustor.
Background
The burner is a device for spraying fuel and air in a certain mode and mixing and burning, the existing burner mostly adopts gas mixing and burning, generally natural gas and hydrogen are mixed, and the working principle is that the mixed gas of the natural gas and the hydrogen is sent into a mixing pipe by using a related air pressure device and then sprayed out through a nozzle, so that the mixed gas enters a burning cavity or a flame path for burning.
For the existing burner, because the hydrogen gas has higher flame propagation speed compared with natural gas, when the mixed gas of the natural gas and the hydrogen gas is burnt in the inner cavity of the burner, namely the combustion cavity, tempering is very easy to occur, if tempering occurs in the burner, the air injection device is burnt to generate deformation, and meanwhile, the burner is caused to generate detonating sound to generate noise, and explosion accidents can also occur when serious.
Disclosure of Invention
Aiming at the defects of the prior mixed gas type burner in the use process, the invention provides an anti-backfire device for the mixed gas type burner, which has the advantages of effectively preventing backfire phenomenon at a combustion cavity and ensuring that an air injection device is not burnt, and solves the technical problems in the prior art.
The invention provides the following technical scheme: the utility model provides an anti-backfire device for mixed gas type combustor, includes the shell, the inner chamber one end fixed mounting of shell has the hybrid tube chamber, one side fixed mounting of hybrid tube chamber has the combustion chamber that is located the inner chamber of shell, the inner chamber fixed mounting of hybrid tube chamber has four hydrogen pipes, four the inboard fixed mounting of hydrogen pipe has four natural gas pipes that are located the inner chamber middle part of hybrid tube chamber, the one end fixed mounting of hydrogen pipe has a shower nozzle, the one end fixed mounting of natural gas pipe has a shower nozzle No. two, the outside fixed mounting of a shower nozzle has the protection nest of tubes that is located the outside of shower nozzle No. two, the one end fixed mounting of protection nest of tubes has the pressurization air pump, the top fixed mounting of pressurization air pump has the shunt tubes, the one end fixed mounting of shunt tubes has the gas-supply pipe, the top fixed mounting of gas-supply pipe has the transmission pipe, the top fixed mounting of transmission pipe has the suction pump, the other end fixed mounting of protection nest of tubes has the recovery air make-up pipe that is located the inner chamber middle part of combustion chamber.
Preferably, the first nozzle is conical in shape, the second nozzle is cylindrical in shape, the length value of the pipe body of the first nozzle is consistent with the length value of the pipe body of the second nozzle, and the diameter value of the outlet pipe orifice of the first nozzle is one third of the diameter value of the outlet pipe orifice of the second nozzle.
Preferably, the protection tube group is spiral, evenly winds the surface at first shower nozzle and No. two shower nozzles respectively, the body diameter of protection tube group progressively changes along with the direction of rotation in proper order, and the body diameter value size of the protection tube group that is located the surface of first shower nozzle decreases along with the direction of rotation in proper order, and the body diameter value size of the protection tube group that is located the surface of No. two shower nozzles increases progressively along with the direction of rotation in proper order.
Preferably, the shape of the gas pipe is circular, and the bottom end of the gas pipe is communicated with the junction of the shunt pipe.
Preferably, the recovery air supplementing pipe is cylindrical, one end surface of the recovery air supplementing pipe is communicated with one end opening of the protection pipe group, the other end surface of the recovery air supplementing pipe is provided with holes, and the holes are uniformly distributed in a circumferential shape.
The invention has the following beneficial effects:
1. according to the invention, the outside air is sucked by the suction pump, then is conveyed by the conveying pipe and the gas conveying pipe, the air is pressurized by the pressurizing air pump to form air flow into the pipe of the protecting pipe group, the first nozzle is cooled by the flowing of low-temperature air in the protecting pipe group, when the hydrogen flows from the inner cavity of the hydrogen pipe to the first nozzle, the temperature of the hydrogen is reduced, when the hydrogen is sprayed out from the first nozzle according to the characteristic that the flame propagation speed is influenced by the temperature, the temperature of the hydrogen is lower, the flame propagation speed is reduced, meanwhile, the air flowing through the surface of the first nozzle heats and conducts heat energy absorbed by the air to the second nozzle, so that the temperature of the natural gas flowing to the second nozzle is increased, the flame propagation speed of the natural gas is increased when the natural gas is sprayed out from the second nozzle, the flame propagation speed difference of the natural gas and the hydrogen is reduced, and the tempering phenomenon is effectively prevented when the natural gas and the hydrogen are combusted in the combustion cavity.
2. According to the invention, the diameter value of the pipe body of the protective pipe group is gradually changed, when air flows in the pipe body of the protective pipe group positioned on the outer surface of the first nozzle, the cross section of the pipe body of the protective pipe group is smaller and smaller, the air flow speed is faster and the air flows to the rear end of the first nozzle, and more heat energy is carried into the air from the surface of the first nozzle relatively to the high flow speed due to the faster flow speed, so that the insufficient heat absorption caused by the heat contained in the air is effectively compensated.
3. According to the invention, the diameter value of the pipe body of the protective pipe group is gradually changed, when air flows in the pipe body of the protective pipe group positioned on the outer surface of the second nozzle, the flow speed is higher when the air flows at the rear end of the second nozzle due to the fact that the pipe body diameter of the protective pipe group is larger and larger, the flow speed of the air is lower when the air flows at the front end of the second nozzle, the contact time of the air and the rear end of the second nozzle is shorter, the heat conduction efficiency is lower, the heat energy lost by the air is less, the contact time of the air and the front end of the second nozzle is longer, the heat conduction efficiency is higher, the heat energy contained by the air is still higher than the heat energy contained by the second nozzle, and the problems that the heat conduction phenomenon occurs at the position of the second nozzle and the opening of the front end of the second nozzle is reversely cooled can be avoided.
Drawings
FIG. 1 is a schematic elevational cross-sectional view of the structure of the present invention;
FIG. 2 is a schematic side cross-sectional view of the structure of the present invention;
FIG. 3 is a schematic top view of the structure of the present invention.
In the figure: 1. a housing; 2. a mixing lumen; 3. a combustion chamber; 4. a hydrogen pipe; 5. a natural gas pipe; 6. a first nozzle; 7. a second nozzle; 8. a protective tube group; 9. a pressurized air pump; 10. a shunt; 11. a gas pipe; 12. a transmission tube; 13. a getter pump; 14. recovering the air supplementing pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, an anti-backfire device for a gas mixing type burner comprises a housing 1, a mixing tube cavity 2 is fixedly arranged at one end of an inner cavity of the housing 1, a combustion cavity 3 positioned in the inner cavity of the housing 1 is fixedly arranged at one side of the mixing tube cavity 2, four hydrogen tubes 4 are fixedly arranged in the inner cavity of the mixing tube cavity 2, four natural gas tubes 5 positioned in the middle of the inner cavity of the mixing tube cavity 2 are fixedly arranged at the inner sides of the four hydrogen tubes 4, a first spray head 6 is fixedly arranged at one end of each hydrogen tube 4, a second spray head 7 is fixedly arranged at one end of each natural gas tube 5, a protective tube group 8 positioned at the outer part of the second spray head 7 is fixedly arranged at the outer part of the first spray head 6, a pressurizing air pump 9 is fixedly arranged at one end of the protective tube group 8, a shunt tube 10 is fixedly arranged at the top end of the pressurizing air pump 9, a gas tube 11 is fixedly arranged at one end of the shunt tube 10, a transmission tube 12 is fixedly arranged at the top end of the gas tube 11, the top end of the transmission pipe 12 is fixedly provided with a suction pump 13, the other end of the protection pipe group 8 is fixedly provided with a recovery air supplementing pipe 14 positioned in the middle of the inner cavity of the combustion chamber 3, external air is sucked by the suction pump 13, then is transmitted by the transmission pipe 12 and the air transmission pipe 11, air is formed into air flow into the pipe of the protection pipe group 8 by the pressurization of the pressurization air pump 9, the surface temperature of the first nozzle 6 is higher than the external air temperature along with the continuous flow of the pipe body of the protection pipe group 8, the first nozzle 6 is cooled by the flow of low-temperature air, the temperature of the first nozzle 6 is reduced, when hydrogen flows from the inner cavity of the hydrogen pipe 4 to the first nozzle 6, the temperature of the hydrogen is reduced, and when the hydrogen is sprayed out from the first nozzle 6 according to the characteristic that the flame propagation speed is influenced by the temperature, the flame propagation speed is reduced, simultaneously, the air flowing through the surface of the first nozzle 6 conducts heat energy contained in the first nozzle 6 and carries downwards to transport, the air flows to the outer surface of the second nozzle 7, high-temperature-contained air flows along with the surrounding type pipe body of the protective pipe group 8, the heat energy absorbed by the air conducts heating on the position of the second nozzle 7, the temperature contained in the second nozzle 7 is effectively increased, the temperature of natural gas flowing to the second nozzle 7 is increased, when the natural gas is sprayed out from the position of the second nozzle 7, the flame propagation speed is increased, the flame propagation speed difference value between the natural gas and hydrogen is reduced, and the tempering phenomenon is effectively prevented when the natural gas and the hydrogen are combusted in the combustion chamber 3.
Referring to fig. 1-2, the first nozzle 6 is conical, the second nozzle 7 is cylindrical, the length of the tube of the first nozzle 6 is equal to the length of the tube of the second nozzle 7, the diameter of the outlet nozzle of the first nozzle 6 is one third of the diameter of the outlet nozzle of the second nozzle 7, the nozzle is far smaller than the nozzle of the second nozzle 7 by changing the shape of the tube of the first nozzle 6, and when the hydrogen is sprayed out from the nozzle of the first nozzle 6, the gas outlet speed is higher, the flame outlet speed of the hydrogen is higher than the flame propagation speed of the hydrogen, so that the tempering phenomenon is further prevented.
Referring to fig. 1-2, the protective tube set 8 is in a spiral shape and uniformly wound on the surfaces of the first nozzle 6 and the second nozzle 7, the tube diameter of the protective tube set 8 sequentially and progressively changes along with the rotation direction, the tube diameter of the protective tube set 8 positioned on the outer surface of the first nozzle 6 decreases along with the rotation direction, the tube diameter of the protective tube set 8 positioned on the outer surface of the second nozzle 7 increases along with the rotation direction, the surface heat dissipation of the first nozzle 6 and the surface heat conduction of the second nozzle 7 are uniform by designing the protective tube set 8 to be a spiral tube, when air flows downwards along with the tube of the protective tube set 8, the air flows in from the front end of the first nozzle 6, namely the opening end of the first nozzle 6 in a surrounding manner, at this time, the air heat dissipation efficiency is highest, and when the air flows to the rear end of the first nozzle 6 along with the tube, that is, when the first nozzle 6 is connected to the hydrogen pipe 4, the heat dissipation efficiency of the first nozzle 6 is weakened because the air carries part of the high temperature when the air dissipates the first nozzle 6 at the front end, and when the air dissipates the heat of the first nozzle 6 at the rear end, that is, the heat dissipation effect of the protective pipe group 8 is weakened when the air flows and dissipates the heat of the first nozzle 6, and the air absorbing the heat energy continuously moves downwards along the pipe body of the protective pipe group 8, so that the heat energy contained in the air is highest when the air flows and conducts heat to the rear end of the second nozzle 7, that is, the end of the second nozzle 7 connected to the natural gas pipe 5, and the conduction efficiency is best, and when the air flows to the front end of the second nozzle 7 along the pipe body, that is, the opening end of the second nozzle 7, the heat energy of the second nozzle 7 at the rear end is lost because the air conducts heat, when the heat is transferred to the second nozzle 7 at the front end, the heat energy of the air may be lower than the heat energy contained in the second nozzle 7, so that the reverse heat conduction phenomenon is caused, and the opening of the second nozzle 7 is cooled.
To sum up, through designing the body diameter value of protection nest of tubes 8 to be progressive change, when the air flows in the body of protection nest of tubes 8 that is located No. 6 surface of shower nozzle, because of the body diameter of protection nest of tubes 8 is smaller and smaller, then its cross section is smaller and smaller, the air flow speed is faster and smaller, when the air current is to the rear end of No. 6, because of the velocity of flow is faster, the relative more heat energy of carrying in the air from the surface of No. 6 of high velocity of flow, and then effectual compensation is because of the heat absorption inadequately that the air contains heat, and when the air flows in the body of protection nest of tubes 8 that is located No. 7 surface of shower nozzle, because of the body diameter of protection nest of tubes 8 is greater and more, then the air is at the rear end of No. 7 of shower nozzle, the velocity of flow is faster, at the front end of No. 7 of shower nozzle, the air flow velocity of flow is slower, the air is shorter with the rear end of No. 7 of shower nozzle, its heat conduction efficiency is lower, the heat energy that the air lost is less, and the air is longer with the front end of No. 7 of shower nozzle and the thermal energy that the heat conduction efficiency is higher than that the front end of No. 7 of shower nozzle is still contained, and the opposite shower nozzle 7 is still avoided the problem of cooling down.
Referring to fig. 1, the air pipe 11 is circular, and the bottom end of the air pipe 11 is connected to the shunt 10.
Referring to fig. 2-3, the recovery air supplementing pipe 14 is cylindrical, one end surface of the recovery air supplementing pipe 14 is communicated with one end opening of the protection pipe set 8, holes are formed in the other end surface of the recovery air supplementing pipe 14, the holes are uniformly distributed in a circumferential shape, and through the arrangement of the recovery air supplementing pipe 14, air for heat dissipation or heat conduction in the protection pipe set 8 is recovered, and through the holes, the air flows into the inner cavity of the combustion cavity 3, so that combustible gas can be timely supplemented to the inner cavity of the combustion cavity 3, and the flame combustion degree in the combustion cavity 3 is effectively enhanced.
The working principle of the using method of the invention is as follows:
external air is continuously sucked into the transmission pipe 12 through the suction pump 13, the air is transmitted into the air transmission pipe 11 through the transmission pipe 12, flows into the inner cavity of the pressurizing air pump 9 through the shunt pipe 10, and flows into the pipe of the protecting pipe group 8 through the pressurizing of the pressurizing air pump 9 to form air flow with a certain pressure flow rate.
The air current is along with the body of protection nest of tubes 8, constantly flow on the surface of shower nozzle 6, cool down shower nozzle 6, make its contained temperature decline, when hydrogen flows to shower nozzle 6 from the inner chamber of hydrogen pipe 4, the hydrogen receives the temperature decline, its flame propagation speed decline, simultaneously, the air that flows through the surface of shower nozzle 6 will be contained heat energy conduction and carry of shower nozzle 6, flow down to the surface of shower nozzle 7 No. two, the air that contains high temperature carries out the heat conduction to shower nozzle 7 No. two, effectively increase shower nozzle 7 and contain the temperature, make the natural gas temperature that flows to shower nozzle 7 No. two rise, then when the natural gas is spouted from shower nozzle 7 No. two, its flame propagation speed difference of natural gas and hydrogen reduces, when effectively preventing that natural gas and hydrogen from taking place the tempering phenomenon in the combustion chamber 3 internal combustion.
When the air flows out of the pipe orifice of the protective pipe group 8, the air flows into the inner cavity of the recovery air supplementing pipe 14 to be recovered intensively, then flows into the inner cavity of the combustion cavity 3 through the surface opening of the recovery air supplementing pipe 14, timely supplements combustible gas for the inner cavity of the combustion cavity 3, and effectively strengthens the flame combustion degree in the combustion cavity 3.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The tempering preventing device for the gas mixing type burner comprises a shell (1), and is characterized in that: the utility model discloses a gas recovery device, including shell (1) and gas supply pipe, including shell (1) inner chamber fixed mounting has hybrid lumen (2), one side fixed mounting of hybrid lumen (2) has combustion chamber (3) that are located the inner chamber of shell (1), the inner chamber fixed mounting of hybrid lumen (2) has four hydrogen pipe (4), four the inboard fixed mounting of hydrogen pipe (4) has four natural gas pipe (5) at the inner chamber middle part of hybrid lumen (2), the one end fixed mounting of hydrogen pipe (4) has shower nozzle (6) No. 1, the one end fixed mounting of natural gas pipe (5) has shower nozzle (7) No. two, the outside fixed mounting of shower nozzle (6) No. 1) has protective tube group (8) that are located the outside of shower nozzle No. two (7), the one end fixed mounting of protective tube group (8) has pressurization air pump (9), the top fixed mounting of pressurization air pump (9) has shunt tubes (10), the one end fixed mounting of hydrogen pipe (10) has shunt tubes (11), the top fixed mounting of transport tube (12), the one end fixed mounting of transport tube (12) has shower nozzle (6), the air supply pump (13) is located the middle part of the inside of other air supply tube (3) and is located the air supply tube (3).
2. The backfire preventing device for a gas-mixing type burner according to claim 1, wherein: the shape of the first nozzle (6) is conical, the shape of the second nozzle (7) is cylindrical, the length value of the pipe body of the first nozzle (6) is consistent with the length value of the pipe body of the second nozzle (7), and the diameter value of the outlet pipe orifice of the first nozzle (6) is one third of the diameter value of the outlet pipe orifice of the second nozzle (7).
3. The backfire preventing device for a gas-mixing type burner according to claim 1, wherein: the protection nest of tubes (8) are spiral, evenly twine respectively in the surface of shower nozzle (6) and No. two shower nozzles (7), the body diameter of protection nest of tubes (8) is along with the direction of rotation progressive change in proper order, and the body diameter value size of the protection nest of tubes (8) that are located the surface of shower nozzle (6) is along with the direction of rotation progressively decreased in proper order, and the body diameter value size of the protection nest of tubes (8) that are located the surface of No. two shower nozzles (7) is along with the direction of rotation progressively increased in proper order.
4. The backfire preventing device for a gas-mixing type burner according to claim 1, wherein: the shape of the air delivery pipe (11) is circular, and the bottom end of the air delivery pipe (11) is communicated with the connecting part of the shunt pipe (10).
5. The backfire preventing device for a gas-mixing type burner according to claim 1, wherein: the recovery air supplementing pipe (14) is cylindrical, one end surface of the recovery air supplementing pipe (14) is communicated with one end opening of the protection pipe group (8), holes are formed in the other end surface of the recovery air supplementing pipe (14), and the holes are uniformly distributed in a circumferential shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111245743.1A CN113898945B (en) | 2021-10-26 | 2021-10-26 | Tempering preventing device for gas mixing type burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111245743.1A CN113898945B (en) | 2021-10-26 | 2021-10-26 | Tempering preventing device for gas mixing type burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113898945A CN113898945A (en) | 2022-01-07 |
| CN113898945B true CN113898945B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111245743.1A Active CN113898945B (en) | 2021-10-26 | 2021-10-26 | Tempering preventing device for gas mixing type burner |
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| CN (1) | CN113898945B (en) |
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| CN111911961A (en) * | 2020-09-02 | 2020-11-10 | 西安交通大学 | Natural gas high-proportion hydrogen-blending combustion burner |
| CN214275708U (en) * | 2021-01-19 | 2021-09-24 | 武汉漫修达科技工程有限公司 | Anti-backfire burner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI435978B (en) * | 2011-10-31 | 2014-05-01 | Atomic Energy Council | Hydrogen-rich gas burner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN204901833U (en) * | 2015-06-10 | 2015-12-23 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | Sprayer and be equipped with gas turbine of this sprayer |
| CN209371245U (en) * | 2018-12-05 | 2019-09-10 | 宁夏日盛高新产业股份有限公司 | A kind of combustion of hydrogen system |
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| CN113898945A (en) | 2022-01-07 |
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