CN108518674B - Alcohol group gasification spiral-flow type combustor - Google Patents
Alcohol group gasification spiral-flow type combustor Download PDFInfo
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- CN108518674B CN108518674B CN201810623847.3A CN201810623847A CN108518674B CN 108518674 B CN108518674 B CN 108518674B CN 201810623847 A CN201810623847 A CN 201810623847A CN 108518674 B CN108518674 B CN 108518674B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/10—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
- F23D11/101—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet
- F23D11/102—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet in an internal mixing chamber
- F23D11/103—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour medium and fuel meeting before the burner outlet in an internal mixing chamber with means creating a swirl inside the mixing chamber
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/40—Mixing tubes or chambers; Burner heads
- F23D11/402—Mixing chambers downstream of the nozzle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/40—Mixing tubes or chambers; Burner heads
- F23D11/408—Flow influencing devices in the air tube
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Spray-Type Burners (AREA)
Abstract
The application relates to an alcohol group gasification cyclone burner. The alcohol-based fuel is supplied to the bottom of the gasification chamber through the cross-shaped homogenizer, and meanwhile, the alcohol-based fuel and air required by gasification combustion are simultaneously conveyed into the gasification chamber, so that the gasification mode is simplified, and the working efficiency is improved; three layers of air duct structures are arranged around the main cavity opening of the gasified alcohol-based combustible gas, the generated first layer of rotational flow air, the generated second layer of backflow air and the generated third layer of steady flow air are provided with sufficient oxygen mixing in three different air distribution modes, so that the alcohol-based combustible gas is fully mixed and combusted in a rotational flow mode, and the optimal combustion effect is achieved. The method is completely different from the prior art in the mode of supplying the alcohol-based fuel, the mode of gasifying and the mode of supplying the oxygen, improves the combustion efficiency by 20% -50% compared with the prior alcohol-based atomizing burner, improves the combustion efficiency by more than 10% compared with the combustion efficiency of the prior alcohol-based atomizing burner after gasifying and is in accordance with the development requirements of energy conservation and environmental protection.
Description
Technical Field
The application belongs to the technical field of combustors, and particularly relates to an alcohol-based gasification cyclone combustor.
Background
The burner is also called a burner, and the burner is divided into an atomization burner and a gasification burner according to a fuel combustion mode, but the existing atomization burner has high energy consumption, and the existing atomization burner is formed by mixing and burning high-pressure atomized alcohol-based fuel and air, wherein part of the atomized fuel is blown out by high-speed wind, and the combustible CO generated in the combustion of the other part of the atomized fuel is blown out by high-speed wind, so that more than 20% of the combustible CO cannot be completely combusted.
The existing gasification burner is characterized in that an external evaporation gasification device is connected to the existing gasification burner, the alcohol-based fuel is gasified and then is conveyed to the burner for combustion, the other method firstly uses electric heating and then uses a combustion cavity mouth tube for radiation heating, the alcohol-based fuel is gasified by a combined heating method, and in a word, the two methods firstly gasify the alcohol-based fuel and then convey the gasified alcohol-based fuel to the burner for combustion, and the problem to be overcome by the two methods is easy carbon deposition.
Disclosure of Invention
In order to solve the technical problems, the application designs the alcohol group gasification cyclone burner, which is redesigned in the mode of alcohol group fuel supply, gasification and oxygen supply, and is completely different from the prior art, and the burner can fully utilize combustible substances such as CO, H and the like generated in the primary combustion and gasification process.
In order to achieve the above purpose, the present application adopts the following technical scheme:
the utility model provides an alcohol group gasifies spiral-flow type combustor, includes fuel supply unit, gasification unit and flame accent unit, and the gasification unit is connected to fuel supply unit, and alcohol group gas-liquid fuel is carried to the gasification unit through fuel supply unit, gasifies the back through the gasification unit, spouts through the flame accent unit that is connected with the gasification unit, wherein:
a fuel supply unit comprising a cross homogenizer air pipe 14 and a cross homogenizer liquid supply pipe 15; the cross-shaped uniform device liquid supply pipe 15 is nested in the cross-shaped uniform device air pipe 14 to form a cross-shaped uniform device, the cross-shaped uniform device comprises a vertical section and a horizontal section, and the horizontal section is of a cross-shaped structure; the vertical section of the cross-shaped uniform device is connected to the top of the gasification chamber 10 in a sealing way, and the horizontal section of the cross-shaped uniform device extends to the bottom of the cavity of the gasification chamber 10; the cross-shaped uniform device vertical section is characterized in that four cross-shaped uniform device liquid supply pipes 15 are nested in a cross-shaped uniform device air pipe 14 to reach a cross-shaped uniform device horizontal section, the four cross-shaped uniform device liquid supply pipes 15 respectively extend into the cross-shaped uniform device air pipe 14 horizontal section with a cross-shaped structure, a mixing cavity 14-2 is formed in the cross-shaped uniform device air pipe 14 horizontal section, a plurality of fuel gas atomizing nozzles 15-1 are arranged in the cross-shaped uniform device liquid supply pipe 15 horizontal section, fuel gas is sprayed into the mixing cavity 14-2, so that the fuel gas is fully mixed with air in the cross-shaped uniform device air pipe 14, a plurality of mixed gas outlets 14-1 are arranged in the cross-shaped uniform device air pipe 14 horizontal section, and mixed gas after the fuel gas and the air are fully mixed is sprayed into the bottom of the gasification chamber 10 through the mixed gas outlets 14-1 for primary combustion;
further, the four cross-shaped evenly-arranged device liquid supply pipes 15 extend into the horizontal section of the cross-shaped evenly-arranged device air pipe 14, and the horizontal section of the cross-shaped evenly-arranged liquid supply pipe 15 is welded and fixed on the upper pipe wall of the horizontal section of the cross-shaped evenly-arranged device air pipe 14.
Further, the cross homogenizer vertical section is connected to the top of the gasification chamber 10 in a sealing way, and the cross homogenizer vertical section is connected with the upper sealing cover 8 of the gasification chamber in a locking and sealing way through a sealing ring 13, a homogenizer sealing gland 11 and a homogenizer sealing gland bolt group 12.
A vaporizing unit including a vaporizing chamber 10, a vaporizing chamber temperature sensor 16, an electronic flame inspection port 18, and an ignition device; the gasification chamber 10 is of a sealed cavity structure, the top is covered and sealed by a gasification chamber upper sealing cover 8, and a gasification chamber temperature sensor 16 is connected to the gasification chamber upper sealing cover 8 in an inserted manner and is used for measuring the temperature in the gasification chamber 10; an electronic flame inspection port 18 is arranged on the side wall of the gasification chamber 10, and an ignition device is arranged at the bottom of the gasification chamber 10;
further, the upper sealing cover 8 of the gasification chamber is connected with the gasification chamber 10 in a flange plate manner, and is locked and sealed through the upper sealing cover bolt group 9.
Further, an artificial flame observation port 17 is installed on the side wall of the gasification chamber 10, so that the combustion and gasification conditions in the gasification chamber 10 can be conveniently monitored.
Further, the ignition device includes an electronic pulse ignition needle 19 and an ignition liquid supply tank 20.
The flame cavity port unit comprises a main cavity port 1, a cyclone air guide plate 2, a secondary air distribution inner cylinder 3, a guide plate 4, a secondary air distribution outer cylinder 5, a secondary air distribution chamber 6 and a primary air distribution chamber 7, wherein: the main cavity opening 1 is in sealing connection with the lower cavity of the gasification chamber 10, the main cavity opening 1, the cyclone air guide plate 2, the secondary air distribution inner cylinder 3, the guide plate 4 and the secondary air distribution outer cylinder 5 sequentially form a cylindrical cavity structure from inside to outside, and the secondary air distribution chamber 6 and the primary air distribution chamber 7 are in sealing connection with the outside of the cylindrical cavity and form three layers of air channels with the cylindrical sealed cavity:
the first layer of air duct: the outer wall of the main cavity opening 1 is in sealing connection with the rear end of the primary air distribution chamber 7, the front end of the primary air distribution chamber 7 is in sealing connection with the secondary air distribution inner cylinder 3, the outer wall of the main cavity opening 1, the secondary air distribution inner cylinder 3 and the primary air distribution chamber 7 form a first layer of air channel, a swirl air guide plate 2 is arranged between the outer wall of the main cavity opening 1 and the inner wall of the secondary air distribution inner cylinder 3 at the outlet of the first layer of air channel, and a plurality of swirl air guide plates 2 are arranged around the outer wall of the main cavity opening 1 and tangential to the outer wall of the main cavity opening 1 at an angle of 10-45 degrees; the primary air distribution chamber 7 is provided with a primary air distribution opening 21, external air is fed through the primary air distribution opening 21, and the first layer of air flowing out through the first layer of air flue is cyclone air;
further, the swirl wind guide plates 2 are installed around the outer wall of the main cavity opening 1 and tangential to the outer wall of the main cavity opening 1 at 35 degrees.
Further, the length of the cyclone wind guide plate 2 is 15 mm-80 mm.
Further, the length of the cyclone wind guide plate 2 is 60mm.
The second layer air duct and the third layer air duct share one air duct: the secondary air distribution inner cylinder 3 is in sealing connection with the rear end of the secondary air distribution chamber 6, the front end of the secondary air distribution chamber 6 is in sealing connection with the secondary air distribution outer cylinder 5, a second layer air channel is formed by the outer wall of the secondary air distribution inner cylinder 3, the secondary air distribution outer cylinder 5 and the secondary air distribution chamber 6, a guide plate 4 is arranged between the outer wall of the secondary air distribution inner cylinder 3 and the secondary air distribution outer cylinder 5 at the outlet of the air channel, the guide plate 4 is circumferentially arranged on the outer wall of the outlet of the secondary air distribution inner cylinder 3, a plurality of air holes are uniformly distributed on the guide plate 4, the outer diameter of the guide plate 4 is smaller than the inner diameter of the secondary air distribution outer cylinder 5, namely, a gap is reserved between the guide plate 4 and the secondary air distribution outer cylinder 5, the gap is a third layer air channel outlet, the secondary air distribution chamber 6 is provided with a secondary air distribution opening 22, external air is fed through the secondary air distribution opening 22, the third layer air flowing out through the gap between the outer diameter of the guide plate 4 and the secondary air distribution outer cylinder 5 is reflux air.
Further, the outlets of the first layer of air channels, the second layer of air channels and the third layer of air channels have the same radial dimension.
Further, the secondary air distribution chamber 6 and the primary air distribution chamber 7 are connected outside the cylindrical cavity in a sealing way, the secondary air distribution chamber 6 and the primary air distribution chamber 7 are connected adjacently, and the rear end of the secondary air distribution chamber 6 is the front end of the primary air distribution chamber 7.
When the combustion machine works, after the ignition of the gasification chamber is completed, the cross-shaped homogenizer which consists of the cross-shaped homogenizer liquid supply pipe 15 and the cross-shaped homogenizer air pipe 14 of the fuel supply unit conveys alcohol-based mixed gas-liquid fuel into the gasification chamber 10 of the gasification unit, the alcohol-based mixed gas-liquid fuel is sprayed out from the mixed gas outlet 14-1 at the bottom of the horizontal section of the cross-shaped homogenizer to the bottom of the gasification chamber, primary combustion is carried out at the bottom of the gasification chamber 10, and ventilation combustion is carried out in the gasification chamber 10, so that the gasification chamber 10 reaches the gasification temperature of the proper alcohol-based fuel, most of gasified alcohol-based combustible gas is sprayed out through the main cavity opening 1, the alcohol-based combustible gas is sprayed out from the main cavity opening 1, and simultaneously, the flame cavity opening unit provides full oxygen mixing in three different air distribution modes in a cyclone mode in a first layer, a second layer and a third layer of air flow.
Compared with the prior art, the application has the beneficial effects that:
the alcohol-based fuel is supplied into the gasification chamber through the cross-shaped homogenizer, meanwhile, air required by gasification combustion is simultaneously conveyed into the gasification chamber, the alcohol-based fuel and the air are fully mixed before entering the gasification chamber, and then the mixture is sprayed out to enter the bottom of the gasification chamber; the cross-shaped homogenizer alcohol-based fuel supply mode simplifies the gasification mode, does not need to gasify fuel and then mix the fuel with air for gasification combustion, simplifies the structure of the device, avoids carbon deposition and improves the working efficiency; the flame cavity port unit is provided with a three-layer air duct structure around the main cavity port of the gasified alcohol-based combustible gas, the generated first layer of rotational flow air, the generated second layer of backflow air and the generated third layer of steady flow air are provided with sufficient oxygen mixing in three different air distribution modes, so that the alcohol-based combustible gas is fully mixed and combusted in a rotational flow mode, and the optimal combustion effect is achieved. The fuel combustion efficiency depends on the fuel and oxygen amount ratio and the reasonability of the supply mode, the alcohol-based fuel supply mode, the gasification mode and the oxygen supply mode are essentially different from the existing products at present, and combustible substances such as CO, H and the like can be fully utilized in the primary combustion and gasification process, so that the maximum combustion efficiency is achieved.
The application achieves ideal effect in practical application test, improves combustion efficiency by 20% -50% compared with the existing alcohol group atomization burner, improves combustion efficiency by more than 10% compared with the existing alcohol group gasification burner, meets the development requirement of energy conservation and environmental protection, is originally used in grain drying industry in China, achieves international leading technical effect, and obtains approval of domestic authorities.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic structural view of an alcohol group gasification cyclone burner in example 1 of the present application;
FIG. 2 is a schematic view of the cross-shaped homogenizer of the fuel supply unit of FIG. 1;
FIG. 3 is a cross-sectional view of FIG. 2;
FIG. 4 is a schematic view of the flame port unit of FIG. 1;
FIG. 5 is an enlarged view of a portion of FIG. 4;
in the figure: 1. a main cavity port; 2. swirl wind guide plate; 3. a secondary air distribution inner cylinder; 4. a deflector; 5. a secondary air distribution outer cylinder; 6. a secondary air distribution chamber; 7. a primary air distribution chamber; 8. a sealing cover is arranged on the gasification chamber; 9. an upper sealing cover bolt group; 10. a gasification chamber; 11. the uniformly arranged device is provided with a sealing gland; 12. a gland bolt set; 13. a seal ring; 14. a cross uniform device air pipe; 14-1, a mixed gas outlet; 14-2, mixing chamber; 15. a liquid supply pipe of the cross-shaped uniform device; 15-1, fuel gas atomizing nozzle; 16. a gasification chamber temperature sensor; 17 an artificial flame observation port; 18. an electronic flame inspection port; 19. an electronic pulse ignition needle; 20. an ignition liquid supply tank; 21. a primary air distribution inlet; 22 secondary air distribution openings.
Detailed Description
The technical scheme of the application is further specifically described below by combining examples.
Example 1
As shown in fig. 1, an alcohol group gasification cyclone burner comprises a fuel supply unit, a gasification unit and a flame cavity port unit, wherein the fuel supply unit is connected with the gasification unit, alcohol group mixed gas-liquid fuel is conveyed to the gasification unit through the fuel supply unit, and is gasified by the gasification unit and then sprayed out through the flame cavity port unit connected with the gasification unit, wherein:
a fuel supply unit comprising a cross homogenizer air pipe 14 and a cross homogenizer liquid supply pipe 15; the cross-shaped homogenizer liquid supply pipe 15 is nested in the cross-shaped homogenizer air pipe 14 to form a cross-shaped homogenizer, and as shown in fig. 2 and 3, the cross-shaped homogenizer comprises a vertical section and a horizontal section, and the horizontal section is of a cross-shaped structure; the vertical section of the cross homogenizer is in locking and sealing connection with the upper sealing cover 8 of the gasification chamber through a sealing ring 13, a homogenizer sealing gland 11 and a homogenizer sealing gland bolt group 12, and the horizontal section of the cross homogenizer extends to the bottom of the cavity of the gasification chamber 10; the cross-shaped uniform device vertical section is characterized in that four cross-shaped uniform device liquid supply pipes 15 are nested in a cross-shaped uniform device air pipe 14 to reach a cross-shaped uniform device horizontal section, the four cross-shaped uniform device liquid supply pipes 15 respectively extend into the cross-shaped uniform device air pipe 14 horizontal section with a cross-shaped structure, the cross-shaped uniform device liquid supply pipe 15 horizontal section is welded and fixed on the upper pipe wall of the cross-shaped uniform device air pipe 14 horizontal section, a mixing cavity 14-2 is formed in the cross-shaped uniform device air pipe 14 horizontal section, a plurality of fuel gas atomization nozzles 15-1 are arranged at the lower part of the cross-shaped uniform device liquid supply pipe 15 horizontal section, and fuel gas is sprayed into the mixing cavity 14-2, so that the fuel gas and air in the cross-shaped uniform device air pipe 14 are fully mixed, a plurality of mixed gas outlets 14-1 are formed in the cross-shaped uniform device air pipe 14 horizontal section, and the mixed gas after the fuel gas and the air are fully mixed is sprayed into the bottom of the gasification chamber 10 through the mixed gas outlets 14-1 for primary combustion.
A vaporizing unit including a vaporizing chamber 10, a vaporizing chamber temperature sensor 16, an electronic flame inspection port 18, and an ignition device; the gasification chamber 10 is of a sealed cavity structure, and alcohol-based mixed gas-liquid fuel is combusted for the first time in the gasification chamber 10, so that the temperature in the gasification chamber 10 reaches the gasification requirement temperature, and the mixed gas-liquid fuel is fully gasified; the top of the gasification chamber 10 is connected with a flange through an upper sealing cover 8 of the gasification chamber, is locked and sealed through an upper sealing cover bolt group 9, and a gasification chamber temperature sensor 16 is connected to the upper sealing cover 8 of the gasification chamber in an inserted manner and is used for measuring the temperature in the gasification chamber 10; an electronic flame inspection port 18 and an artificial flame observation port 17 are arranged on the side wall of the gasification chamber 10, so that the combustion gasification condition in the gasification chamber 10 can be conveniently monitored, and an ignition device consisting of an electronic pulse ignition needle 19 and an ignition liquid supply tank 20 is arranged at the bottom of the gasification chamber 10.
As shown in fig. 4 and 5, the flame cavity port unit comprises a main cavity port 1, a cyclone air guide plate 2, a secondary air distribution inner cylinder 3, a guide plate 4, a secondary air distribution outer cylinder 5, a secondary air distribution chamber 6 and a primary air distribution chamber 7, wherein: the main cavity opening 1 is in sealing connection with the lower cavity of the gasification chamber 10, the main cavity opening 1, the cyclone air guide plate 2, the secondary air distribution inner cylinder 3, the guide plate 4 and the secondary air distribution outer cylinder 5 sequentially form a cylindrical cavity structure from inside to outside, the secondary air distribution chamber 6 and the primary air distribution chamber 7 are in sealing connection outside the cylindrical cavity, the secondary air distribution chamber 6 and the primary air distribution chamber 7 are adjacently connected, the rear end of the secondary air distribution chamber 6 is the front end of the primary air distribution chamber 7, and the secondary air distribution chamber 6, the primary air distribution chamber 7 and the cylindrical sealed cavity form three layers of air channels:
the first layer of air duct: the outer wall of the main cavity opening 1 is in sealing connection with the rear end of the primary air distribution chamber 7, the front end of the primary air distribution chamber 7 is in sealing connection with the secondary air distribution inner cylinder 3, the outer wall of the main cavity opening 1, the secondary air distribution inner cylinder 3 and the primary air distribution chamber 7 form a first layer of air channel, a swirl air guide plate 2 is arranged between the outer wall of the main cavity opening 1 and the inner wall of the secondary air distribution inner cylinder 3 at the outlet of the first layer of air channel, a plurality of swirl air guide plates 2 are arranged around the outer wall of the main cavity opening 1 and tangential to the outer wall of the main cavity opening 1 at an angle of 10-45 degrees, preferably 35 degrees, the length of the swirl air guide plate 2 is 15-80 mm, and the preferred length is 60mm; the primary air distribution chamber 7 is provided with a primary air distribution opening 21, external air is fed through the primary air distribution opening 21, and the first layer of air flowing out through the first layer of air flue is cyclone air;
the second layer air duct and the third layer air duct share one air duct: the secondary air distribution inner cylinder 3 is in sealing connection with the rear end of the secondary air distribution chamber 6, the front end of the secondary air distribution chamber 6 is in sealing connection with the secondary air distribution outer cylinder 5, a second layer air channel is formed by the outer wall of the secondary air distribution inner cylinder 3, the secondary air distribution outer cylinder 5 and the secondary air distribution chamber 6, a guide plate 4 is arranged between the outer wall of the secondary air distribution inner cylinder 3 and the secondary air distribution outer cylinder 5 at the outlet of the air channel, the guide plate 4 is circumferentially arranged on the outer wall of the outlet of the secondary air distribution inner cylinder 3, a plurality of air holes are uniformly distributed on the guide plate 4, the outer diameter of the guide plate 4 is smaller than the inner diameter of the secondary air distribution outer cylinder 5, namely, a gap is reserved between the guide plate 4 and the secondary air distribution outer cylinder 5, the gap is a third layer air channel outlet, the secondary air distribution chamber 6 is provided with a secondary air distribution opening 22, external air is fed through the secondary air distribution opening 22, the third layer air flowing out through the gap between the outer diameter of the guide plate 4 and the secondary air distribution outer cylinder 5 is reflux air.
The radial dimensions of the outlets of the first layer of air channels, the second layer of air channels and the third layer of air channels are the same.
When the combustion engine works, after the ignition of the ignition device of the gasification chamber is completed, a cross-shaped homogenizer consisting of a cross-shaped homogenizer liquid supply pipe 15 and a cross-shaped homogenizer air pipe 14 of a fuel supply unit conveys alcohol-based mixed gas-liquid fuel into the gasification chamber 10 of the gasification unit, the alcohol-based mixed gas-liquid fuel is sprayed out from a mixed gas outlet 14-1 at the bottom of the horizontal section of the cross-shaped homogenizer to the bottom of the gasification chamber, the cross-shaped homogenizer supplies the alcohol-based fuel into the gasification chamber, simultaneously conveys air required by gasification combustion into the gasification chamber, fully mixes the alcohol-based fuel with the air before entering the gasification chamber, and then sprays the mixture into the bottom of the gasification chamber; the cross-shaped uniform device alcohol-based fuel supply mode simplifies the gasification mode, does not need to gasify fuel and then mix the fuel with air for gasification combustion, simplifies the structure of the device, avoids carbon deposition and improves the working efficiency.
The mixed gas is subjected to primary combustion at the bottom of the gasification chamber 10, and is subjected to anaerobic combustion in the gasification chamber 10, so that the gasification chamber 10 reaches a gasification temperature suitable for alcohol-based fuel, most of the gasified alcohol-based combustible gas is sprayed out of the main cavity opening 1, meanwhile, the flame cavity opening unit is matched with a three-layer air duct structure surrounding the main cavity opening 1 to flow out of a first layer of rotational flow air, a second layer of backflow air and a third layer of steady flow air, and three different air distribution modes provide sufficient oxygen mixing, so that the alcohol-based combustible gas is fully mixed and combusted in a rotational flow mode, and the best combustion effect is achieved.
The fuel combustion efficiency depends on the fuel and oxygen amount ratio and the reasonability of the supply mode, the alcohol-based fuel supply mode, the gasification mode and the oxygen supply mode are essentially different from the existing products at present, and combustible substances such as CO, H and the like can be fully utilized in the primary combustion and gasification process, so that the maximum combustion efficiency is achieved.
The application achieves ideal effect in practical application test, improves combustion efficiency by 20% -50% compared with the existing alcohol group atomization burner, improves combustion efficiency by more than 10% compared with the existing alcohol group gasification burner, meets the development requirement of energy conservation and environmental protection, is originally used in grain drying industry in China, achieves international leading technical effect, and obtains approval of domestic authorities.
The foregoing is only a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art, who is within the scope of the present application, should make equivalent substitutions or modifications according to the technical scheme of the present application and the inventive concept thereof, and should be covered by the scope of the present application.
Claims (8)
1. The utility model provides an alcohol group gasifies spiral-flow type combustor which characterized in that, includes fuel supply unit, gasification unit and flame accent unit, and the gasification unit is connected to fuel supply unit, and alcohol group gas-liquid fuel is carried to the gasification unit through fuel supply unit, gasifies the back through the gasification unit, spouts through the flame accent unit that is connected with the gasification unit, wherein:
the fuel supply unit comprises a cross-shaped uniform device air pipe (14) and a cross-shaped uniform device liquid supply pipe (15); the cross-shaped uniform device is formed by nesting a liquid supply pipe (15) of the cross-shaped uniform device in an air pipe (14) of the cross-shaped uniform device, and comprises a vertical section and a horizontal section, wherein the horizontal section is of a cross-shaped structure; the vertical section of the cross-shaped uniform device is connected to the top of the gasification chamber (10) in a sealing way, and the horizontal section of the cross-shaped uniform device extends to the bottom of the cavity of the gasification chamber (10); the cross-shaped homogenizing device comprises a cross-shaped homogenizing device vertical section, four cross-shaped homogenizing device liquid supply pipes (15) are nested in a cross-shaped homogenizing device air pipe (14) to reach a cross-shaped homogenizing device horizontal section, the four cross-shaped homogenizing device liquid supply pipes (15) respectively extend into the cross-shaped homogenizing device air pipe (14) horizontal section with a cross-shaped structure, a mixing cavity (14-2) is formed in the cross-shaped homogenizing device air pipe (14) horizontal section, a plurality of fuel gas atomizing nozzles (15-1) are arranged in the cross-shaped homogenizing device liquid supply pipe (15) horizontal section, and fuel gas is sprayed into the mixing cavity (14-2), so that the fuel gas is fully mixed with air in the cross-shaped homogenizing device air pipe (14), a plurality of mixed gas outlets (14-1) are arranged on the cross-shaped homogenizing device air pipe (14) horizontal section, and the mixed gas after the fuel gas and the air are fully mixed is sprayed into the bottom of a gasification chamber (10) through the mixed gas outlets (14-1) for primary combustion;
a gasification unit comprising a gasification chamber (10), a gasification chamber temperature sensor (16), an electronic flame inspection port 18 and an ignition device; the gasification chamber (10) is of a sealed cavity structure, the top of the gasification chamber is covered and sealed by a gasification chamber upper sealing cover (8), and a gasification chamber temperature sensor (16) is connected to the gasification chamber upper sealing cover (8) in an inserted manner and is used for measuring the temperature in the gasification chamber (10); an electronic flame inspection port (18) is arranged on the side wall of the gasification chamber (10), and an ignition device is arranged at the bottom of the gasification chamber (10);
the flame cavity port unit comprises a main cavity port (1), a cyclone air guide plate (2), a secondary air distribution inner cylinder (3), a guide plate (4), a secondary air distribution outer cylinder (5), a secondary air distribution chamber (6) and a primary air distribution chamber (7), wherein: the main cavity opening (1) is in sealing connection with the lower cavity of the gasification chamber (10), the main cavity opening (1), the cyclone air guide plate (2), the secondary air distribution inner cylinder (3), the guide plate (4) and the secondary air distribution outer cylinder (5) sequentially form a cylindrical cavity structure from inside to outside, and the secondary air distribution chamber (6) and the primary air distribution chamber (7) are in sealing connection with the outside of the cylindrical cavity and form three layers of air channels with the cylindrical sealed cavity:
the first layer of air duct: the outer wall of the main cavity opening (1) is in sealing connection with the rear end of the primary air distribution chamber (7), the front end of the primary air distribution chamber (7) is in sealing connection with the secondary air distribution inner cylinder (3), a first layer of air channel is formed by the outer wall of the main cavity opening (1), the secondary air distribution inner cylinder (3) and the primary air distribution chamber (7), a swirl air guide plate (2) is arranged between the outer wall of the main cavity opening (1) and the inner wall of the secondary air distribution inner cylinder (3) at the outlet of the first layer of air channel, and a plurality of swirl air guide plates (2) are arranged around the outer wall of the main cavity opening (1) and tangential to the outer wall of the main cavity opening (1) at an angle of 10-45 degrees; the primary air distribution chamber (7) is provided with a primary air distribution opening (21), external air is fed through the primary air distribution opening (21), and the first layer of air flowing out through the first layer of air channel is cyclone air;
the second layer air duct and the third layer air duct share one air duct: the secondary air distribution inner cylinder (3) is in sealing connection with the rear end of the secondary air distribution chamber (6), the front end of the secondary air distribution chamber (6) is in sealing connection with the secondary air distribution outer cylinder (5), the outer wall of the secondary air distribution inner cylinder (3), the secondary air distribution outer cylinder (5) and the secondary air distribution chamber (6) form a second layer of air channel, a guide plate (4) is arranged between the outer wall of the secondary air distribution inner cylinder (3) and the secondary air distribution outer cylinder (5) at the outlet of the air channel, the guide plate (4) is circumferentially arranged on the outer wall of the secondary air distribution inner cylinder (3), a plurality of air holes are uniformly distributed on the guide plate (4), the outer diameter of the guide plate (4) is smaller than the inner diameter of the secondary air distribution outer cylinder (5), namely a gap is reserved between the guide plate (4) and the secondary air distribution outer cylinder (5), the gap is a third-layer air channel outlet, a secondary air distribution opening (22) is arranged on the secondary air distribution chamber (6), external air is fed through the secondary air distribution opening (22), third-layer air flowing out through the gap between the outer diameter of the guide plate (4) and the secondary air distribution outer cylinder (5) is steady-flow air, and second-layer air flowing out through the guide plate (4) is backflow air;
the cross-shaped uniform device horizontal section of the fuel supply unit comprises four cross-shaped uniform device liquid supply pipes (15) which extend into the horizontal section of a cross-shaped uniform device air pipe (14) with a cross-shaped structure respectively, and the horizontal section of the cross-shaped uniform liquid supply pipe 15 is welded and fixed on the upper pipe wall of the horizontal section of the cross-shaped uniform device air pipe (14);
the swirl air guide plates (2) of the flame cavity port unit surround the outer wall of the main cavity port (1) and are installed at an angle of 35 degrees tangential to the outer wall of the main cavity port (1).
2. The alcohol group gasification cyclone burner according to claim 1, wherein the cross-shaped homogenizer vertical section of the fuel supply unit is in sealing connection with the top of the gasification chamber (10), and the cross-shaped homogenizer vertical section is in locking sealing connection with the upper sealing cover (8) of the gasification chamber through a sealing ring (13), a homogenizer sealing gland (11) and a homogenizer sealing gland bolt group (12).
3. The alcohol group gasification cyclone burner according to claim 1, wherein the length of the cyclone wind guide plate (2) of the flame cavity port unit is 15 mm-80 mm.
4. The alcohol group gasification cyclone burner according to claim 1, wherein the length of the cyclone wind guide plate (2) is 60mm.
5. The alcohol group gasification cyclone burner according to claim 1, wherein the outlets of the first layer air duct, the second layer air duct and the third layer air duct of the flame chamber port unit have the same radial dimension.
6. The alcohol group gasification cyclone burner according to claim 1, wherein the secondary air distribution chamber (6) and the primary air distribution chamber (7) of the flame cavity port unit are connected outside the cylindrical cavity in a sealing manner, the secondary air distribution chamber (6) and the primary air distribution chamber (7) are connected adjacently, and the rear end of the secondary air distribution chamber (6) is the front end of the primary air distribution chamber (7).
7. The alcohol group gasification cyclone burner according to claim 1, wherein an artificial flame observation port (17) is installed on the side wall of the gasification chamber (10) of the gasification unit, so as to monitor the combustion and gasification conditions in the gasification chamber (10) conveniently.
8. The alcohol group gasification cyclone burner according to claim 1, wherein the ignition device of the gasification unit comprises an electronic pulse ignition needle (19) and an ignition liquid supply tank (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810623847.3A CN108518674B (en) | 2018-06-15 | 2018-06-15 | Alcohol group gasification spiral-flow type combustor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810623847.3A CN108518674B (en) | 2018-06-15 | 2018-06-15 | Alcohol group gasification spiral-flow type combustor |
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| Publication Number | Publication Date |
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| CN108518674A CN108518674A (en) | 2018-09-11 |
| CN108518674B true CN108518674B (en) | 2023-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1095462A (en) * | 1993-01-13 | 1994-11-23 | 日本石油株式会社 | Burner for combustion of liquid fuel |
| JP2001336709A (en) * | 2000-05-26 | 2001-12-07 | Mitsubishi Electric Corp | Combustion equipment |
| JP2003083535A (en) * | 2001-09-07 | 2003-03-19 | Mitsubishi Electric Corp | Combustion equipment |
| CN202885015U (en) * | 2012-03-31 | 2013-04-17 | 祝伟峰 | High efficiency energy-saving cracking furnace head |
| CN105737147A (en) * | 2016-04-12 | 2016-07-06 | 山西圣火伟业科技有限公司 | Alcohol-based fuel gasifier and alcohol-based fuel gasification method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100543550B1 (en) * | 2003-08-25 | 2006-01-20 | (주)리메이크코리아 | Whirlpool barner |
-
2018
- 2018-06-15 CN CN201810623847.3A patent/CN108518674B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1095462A (en) * | 1993-01-13 | 1994-11-23 | 日本石油株式会社 | Burner for combustion of liquid fuel |
| JP2001336709A (en) * | 2000-05-26 | 2001-12-07 | Mitsubishi Electric Corp | Combustion equipment |
| JP2003083535A (en) * | 2001-09-07 | 2003-03-19 | Mitsubishi Electric Corp | Combustion equipment |
| CN202885015U (en) * | 2012-03-31 | 2013-04-17 | 祝伟峰 | High efficiency energy-saving cracking furnace head |
| CN105737147A (en) * | 2016-04-12 | 2016-07-06 | 山西圣火伟业科技有限公司 | Alcohol-based fuel gasifier and alcohol-based fuel gasification method |
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| CN108518674A (en) | 2018-09-11 |
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