CN215062071U

CN215062071U - Multi-energy multifunctional energy-saving emission-reducing burner

Info

Publication number: CN215062071U
Application number: CN202120592578.6U
Authority: CN
Inventors: 芈中; 芈振南
Original assignee: Shaanxi Wollaite Machinery Automation Equipment Co ltd
Current assignee: Shaanxi Wollaite Machinery Automation Equipment Co ltd
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2021-12-07
Anticipated expiration: 2031-03-24

Abstract

The utility model discloses a multi-energy multifunctional energy-saving emission-reducing burner, which comprises a burner shell; the combustor shell is of a cylinder structure, a strong combustion area and an air supply chamber are arranged in an inner cavity of the combustor shell, and a fuel nozzle is fixedly connected to the middle of the inner cavity of the combustor shell; a fixed fuel gas nozzle is arranged on the outer side of the fuel gas nozzle, and a fixed nozzle outer pipe is arranged on the outer side of the fuel gas nozzle; the weak combustion cylinder and the inner side of the support half strip are enclosed to form a weak combustion area; the circumference fixedly connected with pitch flue gas circuit on the outer wall of combustor casing, form between pitch flue gas circuit and the combustor casing and press from both sides the chamber and press from both sides fixedly connected with backup pad in the chamber, pitch flue gas circuit is to the pitch flue gas of strong combustion zone blowout recovery. The utility model discloses a retrieve the pitch flue gas as fuel, the energy saving reduces harmful substance and discharges, has reduced to cause pollution, corruption to the important part of combustor.

Description

Multi-energy multifunctional energy-saving emission-reducing burner

The technical field is as follows:

the utility model relates to a combustor technical field, concretely relates to multi-functional energy saving and emission reduction combustor of multipotency source.

Background art:

the burner is a general term for a device for ejecting fuel and air in a certain manner to perform mixed combustion. The combustor is an important core part of asphalt road pavement material heating and stirring equipment in the road construction industry.

The pavement material of the highway is paved after being mixed by asphalt, gravel and asphalt, which is a petroleum product and is in a solid state at normal temperature, is heated to a certain high temperature to be melted before being mixed with the gravel and then is fully mixed with the gravel and the like to be stirred and kept at a set temperature to be conveyed to a road repairing site for paving and compacting. The steam and smoke emitted from the asphalt during heating and stirring process contain various carcinogenic harmful compounds and cause environmental pollution. If the asphalt flue gas can be recovered and conveyed to the combustor to be continuously combusted, the energy is saved, and the emission of harmful gas is reduced. At present, a plurality of burners for re-burning recycled asphalt smoke are developed in China. One way is to convey the collected and recovered asphalt flue gas into an air inlet of a fan of the existing fuel oil burner or gas burner by a fan through a pipeline, mix the asphalt flue gas with fuel oil or gas of the burner and then flow the mixture into a combustion chamber for combustion. According to the scheme, the recycled asphalt smoke can cause pollution and corrosion to important parts (fan blades, temperature measurement, ignition probes and the like) of the combustor, so that faults are easily caused, and accidents are caused. Mechanical design measures adopted by other schemes are complex, and the burner has some difficulties for energy-saving fuel oil and gas dual-purpose burners. Therefore, a multifunctional burner which can simultaneously burn fuel oil and asphalt smoke and can simultaneously burn natural gas and asphalt smoke needs to be developed.

The utility model has the following contents:

the utility model aims at solving the technical problem and providing a multi-energy multifunctional energy-saving emission-reducing burner.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

a multi-energy multifunctional energy-saving emission-reducing burner comprises a burner shell; the combustor shell is of a cylindrical structure, a strong combustion area and an air supply chamber are arranged in the inner cavity of the combustor shell, the strong combustion area is located on the left side of the inner cavity of the combustor shell, the air supply chamber is located on the right side of the inner cavity of the combustor shell, and the air supply chamber is connected with an air supply outlet of an air supply system and used for conveying air into the combustor shell; the middle part of the inner cavity of the burner shell is fixedly connected with a fuel nozzle, one end of the fuel nozzle, which is close to the air supply chamber, is provided with a fuel supply interface, and the fuel supply interface is connected with a fuel supply system and is used for supplying fuel to the fuel nozzle; the outer side of the fuel nozzle is provided with a fixed fuel gas nozzle, the outer wall of the fuel gas nozzle is fixedly connected with a natural gas conveying pipe, the periphery of the outer wall of the burner shell is fixedly connected with a natural gas loop, the natural gas loop is connected with a natural gas supply interface, the natural gas supply interface is connected with an external natural gas supply system and conveys natural gas into the natural gas loop, and the natural gas loop is connected with the fuel gas nozzle through the natural gas conveying pipe and conveys the natural gas into the fuel gas nozzle; the outer side of the gas nozzle is provided with a fixed nozzle outer pipe, and one side of the nozzle outer pipe close to the air supply chamber is of an open structure; one end of the gas nozzle, which is far away from the air supply chamber, is provided with a nozzle gas outlet, and the nozzle gas outlet is positioned in the inner cavity of the outer tube of the nozzle;

the outer side of the nozzle outer tube is fixedly connected with an inner vortex plate which enables the passing air to form vortex, the outer side of the inner vortex plate is fixedly connected with a connecting plate, the outer side of the connecting plate is fixedly connected with a weak combustion barrel, and the weak combustion barrel and the inner side of the supporting half strip are enclosed to form a weak combustion area; a nozzle gas-air mixing outlet is formed in one end, far away from the air supply chamber, of the nozzle outer pipe and is used for spraying internally mixed natural gas and air to the weak combustion area, and atomized fuel oil is sprayed out from one end, far away from the air supply chamber, of the fuel oil nozzle towards the weak combustion area and the weak combustion area;

the natural gas spray pipe is fixedly connected to the connecting plate, one end of the natural gas spray pipe is connected with the natural gas loop, and the other end of the natural gas spray pipe penetrates through the connecting plate and extends to the end, away from the connecting plate, of the weak combustion barrel body to be used for spraying natural gas to the strong combustion area; form between the weak combustion barrel body and the combustor casing and separate the chamber passageway, border fixedly connected with pitch flue gas circuit on the outer wall of combustor casing, fixedly connected with pitch flue gas supply interface on the pitch flue gas circuit, pitch flue gas supply interface retrieves the supply system with outside pitch flue gas and links to each other and carry the pitch flue gas to in the pitch flue gas circuit, form fixedly connected with backup pad in double-layered chamber and the double-layered chamber between pitch flue gas circuit and the combustor casing, pitch flue gas circuit spouts the pitch flue gas of retrieving through being close to strong burning zone in backup pad one side to combustor casing inner chamber.

Further, the natural gas spray pipe and the weak combustion barrel body are fixedly connected with an outer vortex plate, and the outer vortex plate is used for forming vortex with passing air to enhance the outlet temperature of the weak combustion area.

Further, fixedly connected with atomizing conical plate on the outer wall of the barrel that fires weakly, the outside formation loudspeaker form that extends of barrel one end is fired weakly in keeping away from of atomizing conical plate, be equipped with the through-hole on the atomizing conical plate for retrieve the pitch flue gas and air mixing and see through atomizing conical plate and spout and strengthen the burning to strong burning zone.

Furthermore, one side of the connecting plate, which is close to the weak combustion area, is fixedly connected with a guide conical plate, the guide conical plate is located on one side, which is close to the inner vortex plate, of the natural gas spray pipe, and one end, which is far away from the connecting plate, of the guide conical plate extends outwards to form a horn shape.

Further, the outer scroll plate and the inner scroll plate are in a spiral blade structure. The outer vortex plate and the inner vortex plate are used for rotationally dispersing passing gas.

Further, the natural gas supply system comprises a gas control valve, a filter and a natural gas pipe, wherein the gas control valve and the filter are connected in series on the natural gas pipe.

Furthermore, the air supply system comprises a fan, an air door, a silencer and an air conveying cylinder, and the fan, the air door and the silencer are connected in series on the air conveying cylinder.

The relevant size and material selection of the structure of each part in the embodiment can be obtained by matching with limited experiments under the conditions of different types of equipment (yield, pressure and air quantity of fuel oil and fuel gas, pressure and air quantity of a fan).

The utility model provides a pair of multi-functional energy saving and emission reduction combustor of multipotency source has following beneficial effect: the heating system for the asphalt stirring equipment has the advantages that steam and smoke emitted by asphalt in the heating and stirring processes are recovered, the recovered asphalt smoke is conveyed to the combustor, and fuel oil, fuel gas and the recovered asphalt smoke are used as fuels for combustion, so that energy is saved, and harmful substance emission is reduced; the recycled asphalt flue gas is conveyed to a strong combustion area at the leftmost end in the combustor shell through an asphalt flue gas loop for combustion, so that pollution and corrosion to important parts of the combustor are reduced; through the combustor disclosed by the application, the dense-dilute two-section arrangement of the strong combustion area and the weak combustion area is adopted for combustion, so that the gas consumption is reduced, the emission of harmful compounds is reduced, and the energy is saved.

Description of the drawings:

the following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings:

fig. 1 is a schematic structural view of a multi-energy multifunctional energy-saving emission-reducing burner provided by the utility model;

fig. 2 is a schematic view of gas circulation in the multi-energy multifunctional energy-saving emission-reducing burner provided by the utility model.

The reference numbers in the figures illustrate: 1. a burner housing; 2. a strong combustion zone; 3. a weak combustion zone; 4. an atomizing conical plate; 5. a weakly-combusted cylinder; 6. an outer scroll plate; 7. a support plate; 8. a guide conical plate; 9. a connecting plate; 10. an inner scroll plate; 11. an asphalt flue gas loop; 12. a natural gas nozzle; 13. an asphalt flue gas supply interface; 14. a natural gas loop; 15. a natural gas supply interface; 16. a natural gas delivery pipe; 17. an air supply chamber; 18. a fuel supply interface; 19. a fuel nozzle; 20. a gas nozzle; 21. a nozzle outer tube; 22. a nozzle gas outlet; 23. a nozzle gas-air mixing outlet; A. a first air stream; B. a second air stream; C. a third air stream; D. a fourth air stream; E. a fuel flow; F. a natural gas stream; G. a stream of bitumen flue gas.

The specific implementation mode is as follows:

it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as up-down-left-right-front-back … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components in a specific posture (as shown in the drawings) -motion situation, etc., and if the specific posture is changed, the directional indicator is changed accordingly, and the connection may be a direct connection or an indirect connection.

As shown in fig. 1, the multi-energy-source multi-functional energy-saving emission-reducing burner comprises a burner shell 1; the combustor shell 1 is of a cylindrical structure, a strong combustion area 2 and an air supply chamber 17 are arranged in the inner cavity of the combustor shell 1, the strong combustion area 2 is located on the left side of the inner cavity of the combustor shell 1, the air supply chamber 17 is located on the right side of the inner cavity of the combustor shell 1, and the air supply chamber 17 is connected with an air supply outlet of an air supply system and used for conveying air into the combustor shell 1; a fuel nozzle 19 is fixedly connected to the middle part of the inner cavity of the burner shell 1, a fuel supply interface 18 is arranged at one end, close to the air supply chamber 17, of the fuel nozzle 19, and the fuel supply interface 18 is connected with a fuel supply system and used for supplying fuel to the fuel nozzle 19; a fixed gas nozzle 20 is arranged on the outer side of the fuel nozzle 19, a natural gas conveying pipe 16 is fixedly connected to the outer wall of the gas nozzle 20, a natural gas loop 14 is fixedly connected to the periphery of the outer wall of the burner shell 1, a natural gas supply interface 15 is connected to the natural gas loop 14, the natural gas supply interface 15 is connected with an external natural gas supply system and conveys natural gas into the natural gas loop 14, and the natural gas loop 14 is connected with the gas nozzle 20 through the natural gas conveying pipe 16 and conveys the natural gas into the gas nozzle 20; a fixed nozzle outer pipe 21 is arranged on the outer side of the gas nozzle 20, and one side of the nozzle outer pipe 21 close to the air supply chamber 17 is of an open structure; one end of the gas nozzle 20, which is far away from the air supply chamber 17, is provided with a nozzle gas outlet 22, and the nozzle gas outlet 22 is positioned in the inner cavity of the nozzle outer tube 21;

the outer side of the nozzle outer tube 21 is fixedly connected with an inner vortex plate 10 which enables the passing air to form vortex, the outer side of the inner vortex plate 10 is fixedly connected with a connecting plate 9, the outer side of the connecting plate 9 is fixedly connected with a weak combustion cylinder 5, and the weak combustion cylinder 5 and the inner side of the supporting half strip are enclosed to form a weak combustion area 3; a nozzle gas-air mixing outlet 23 is formed in one end, far away from the air supply chamber 17, of the nozzle outer tube 21 and is used for spraying internally mixed natural gas and air to the weak combustion area 3, and atomized fuel oil is sprayed out of one end, far away from the air supply chamber 17, of the fuel oil nozzle 19 towards the weak combustion area 3 and the weak combustion area 3;

a natural gas spray pipe 12 is fixedly connected to the connecting plate 9, one end of the natural gas spray pipe 12 is connected with a natural gas loop 14, and the other end of the natural gas spray pipe 12 penetrates through the connecting plate 9 and extends to the end part, far away from the connecting plate 9, of the weak combustion barrel 5 to be used for spraying natural gas to the strong combustion area 2; form between the weak combustion barrel 5 and the combustor casing 1 and separate the chamber passageway, border fixedly connected with pitch flue gas circuit 11 on the outer wall of combustor casing 1, fixedly connected with pitch flue gas supply interface 13 on the pitch flue gas circuit 11, pitch flue gas supply interface 13 retrieves the supply system with outside pitch flue gas and links to each other and carry the pitch flue gas to pitch flue gas circuit 11 in, form fixedly connected with backup pad 7 in double-layered chamber and the double-layered chamber between pitch flue gas circuit 11 and the combustor casing 1, pitch flue gas circuit 11 is through being close to backup pad 7 one side to the pitch flue gas of strong burning zone 2 blowout recovery in the combustor casing 1 inner chamber.

Specifically, the natural gas spray pipe 12 and the low combustion barrel 5 are fixedly connected with an outer vortex plate 6, and the outer vortex plate 6 is used for forming a vortex with passing air to enhance the outlet temperature of the low combustion zone 3.

Specifically, fixedly connected with atomizing conical plate 4 on the outer wall of the weakly-combusting barrel 5, the one end of keeping away from weakly-combusting barrel 5 of atomizing conical plate 4 outwards extends and forms loudspeaker form, be equipped with the through-hole on the atomizing conical plate 4 for retrieve the pitch flue gas and air mixture and see through atomizing conical plate 4 and spout and strengthen the burning to strong combustion zone 2.

Specifically, the connecting plate 9 is close to 3 one side fixedly connected with direction taper plate 8 in the weak combustion zone, direction taper plate 8 is located the interior vortex board one side that is close to of natural gas spray tube 12, the outside horn shape that extends of the connecting plate 9 one end of keeping away from of direction taper plate 8. The guide cone plate 8 is used for limiting and regulating the combustion amount of natural gas and air which are input into the weak combustion chamber for combustion.

Specifically, the outer scroll plate 6 and the inner scroll plate 10 are helical blade structures. The outer vortex plate 6 and the inner vortex plate 10 are used for rotationally dispersing passing gas; the outer vortex plate 6 forms a vortex to enhance the outlet temperature of the weak combustion area; the inner vortex plate 10 makes the passing gas form vortex to strengthen oil and gas atomization combustion.

Specifically, the natural gas supply system comprises a gas control valve, a filter and a natural gas pipe, wherein the gas control valve and the filter are connected in series on the natural gas pipe. This is a conventional structure and is not shown in the figures.

Specifically, the air supply system comprises a fan, an air door, a silencer and an air conveying cylinder, wherein the fan, the air door and the silencer are connected in series on the air conveying cylinder. This is a conventional structure and is not shown in the figures.

In the utility model, as shown in fig. 2, the fuel flow E of supply is spouted to the low combustion zone 3 through the fuel nozzle 19, part of the natural gas flow F of supply is carried to the gas nozzle 20 blowout through the natural gas conveyer pipe 16, part of the natural gas through nozzle outer tube 21 and nozzle gas outlet 22 blowout in the first air flow a is mixed and is spouted to the low combustion zone 3 from nozzle gas air mixing outlet 23, second air flow B, third air flow C reach the low combustion zone 3 through the connecting plate 9, part of the first air flow a reaches the low combustion zone 3 through the inner vortex plate 10 and through forming the vortex to the air and mixing the combustion oil gas of the low combustion zone 3 to strengthen oil, the gas atomization burning, the fuel, the natural gas and the air after reaching the low combustion zone 3 atomization are in this zone air quantity limiting and temperature controlling burning; the natural gas flow F is partially sprayed to the strong combustion zone 2 through a natural gas spray pipe 12; the asphalt flue gas flow G and the fourth air flow D flow to the combustion mixed gas of the strong combustion area 2 and the weak combustion area 3 and the natural gas sprayed to the strong combustion area 2 by the natural gas spray pipe 12 to be further mixed and combusted, and the fuel oil, the fuel gas and the air in the strong combustion area 2 are sufficiently combusted in the air of the strong combustion area at high temperature after being mixed and atomized.

The heating system for the asphalt stirring equipment has the advantages that steam and smoke emitted by asphalt in the heating and stirring processes are recovered, the recovered asphalt smoke is conveyed to the combustor, and fuel oil, fuel gas and the recovered asphalt smoke are used as fuels for combustion, so that energy is saved, and harmful substance emission is reduced; the recycled asphalt flue gas is conveyed to the strong combustion area 2 at the leftmost end in the combustor shell 1 through the asphalt flue gas loop 11 for combustion, so that pollution and corrosion to important parts of the combustor are reduced; through the combustor disclosed by the application, the dense-dilute two-section arrangement of the strong combustion area 2 and the weak combustion area 3 is adopted for combustion, so that the gas consumption is reduced, the emission of harmful compounds is reduced, and the energy is saved.

The foregoing shows and describes the general principles, essential features, and features of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the description of the above embodiments and the description is only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and these changes and modifications are all within the scope of the present invention as claimed. The scope of the invention is to be protected by the following claims and their equivalents.

Claims

1. A multi-energy multifunctional energy-saving emission-reducing burner is characterized in that: comprising a burner housing (1); the combustor shell (1) is of a cylindrical structure, a strong combustion area (2) and an air supply chamber (17) are arranged in the inner cavity of the combustor shell (1), the strong combustion area (2) is located on the left side of the inner cavity of the combustor shell (1), the air supply chamber (17) is located on the right side of the inner cavity of the combustor shell (1), and the air supply chamber (17) is connected with an air supply outlet of an air supply system and used for conveying air into the combustor shell (1); a fuel nozzle (19) is fixedly connected to the middle of the inner cavity of the burner shell (1), one end, close to the air supply chamber (17), of the fuel nozzle (19) is provided with a fuel supply interface (18), and the fuel supply interface (18) is connected with a fuel supply system and used for supplying fuel to the fuel nozzle (19); a fixed gas nozzle (20) is arranged on the outer side of the fuel nozzle (19), a natural gas conveying pipe (16) is fixedly connected to the outer wall of the gas nozzle (20), a natural gas loop (14) is fixedly connected to the periphery of the outer wall of the combustor shell (1), a natural gas supply interface (15) is connected to the natural gas loop (14), the natural gas supply interface (15) is connected with an external natural gas supply system and conveys natural gas into the natural gas loop (14), and the natural gas loop (14) is connected with the gas nozzle (20) through the natural gas conveying pipe (16) and conveys the natural gas into the gas nozzle (20); a fixed nozzle outer pipe (21) is arranged on the outer side of the gas nozzle (20), and one side of the nozzle outer pipe (21) close to the air supply chamber (17) is of an open structure; one end of the gas nozzle (20) far away from the air supply chamber (17) is provided with a nozzle gas outlet (22), and the nozzle gas outlet (22) is positioned in the inner cavity of the nozzle outer tube (21);

the outer side of the nozzle outer pipe (21) is fixedly connected with an inner vortex plate (10) which enables passing air to form vortex, the outer side of the inner vortex plate (10) is fixedly connected with a connecting plate (9), the outer side of the connecting plate (9) is fixedly connected with a weak combustion cylinder body (5), and the weak combustion cylinder body (5) and the inner side of the supporting half strip are enclosed to form a weak combustion area (3); one end of the nozzle outer pipe (21) far away from the air supply chamber (17) is provided with a nozzle gas-air mixing outlet (23) and is used for spraying the internally mixed natural gas and air to the weak combustion area (3), and one end of the fuel nozzle (19) far away from the air supply chamber (17) faces the weak combustion area (3) and sprays atomized fuel to the weak combustion area (3);

a natural gas spray pipe (12) is fixedly connected to the connecting plate (9), one end of the natural gas spray pipe (12) is connected with a natural gas loop (14), and the other end of the natural gas spray pipe (12) penetrates through the connecting plate (9) and extends to the end part, far away from the connecting plate (9), of the weak combustion barrel body (5) and is used for spraying natural gas to the strong combustion area (2); form between weak burning barrel (5) and combustor casing (1) and separate the chamber passageway, border fixedly connected with pitch flue gas circuit (11) on the outer wall of combustor casing (1), fixedly connected with pitch flue gas supply interface (13) on pitch flue gas circuit (11), pitch flue gas supply interface (13) and outside pitch flue gas are retrieved the supply system and are linked together and carry the pitch flue gas to in pitch flue gas circuit (11), form between pitch flue gas circuit (11) and combustor casing (1) and press from both sides fixedly connected with backup pad (7) in the chamber and press from both sides the chamber, pitch flue gas circuit (11) are through being close to backup pad (7) one side to strong burning zone (2) blowout pitch flue gas of retrieving in combustor casing (1) inner chamber.

2. The multi-energy multifunctional energy-saving emission-reducing burner as claimed in claim 1, characterized in that: the natural gas spray pipe (12) and the weak combustion barrel body (5) are fixedly connected with an outer vortex plate (6), and the outer vortex plate (6) is used for forming vortex with passing air to enhance the outlet temperature of the weak combustion area (3).

3. The multi-energy multifunctional energy-saving emission-reducing burner as claimed in claim 1, characterized in that: fixedly connected with atomizing conical plate (4) on the outer wall of the weak fire barrel body (5), keeping away from of atomizing conical plate (4) and extending outwards to form loudspeaker form weak fire barrel body (5) one end, be equipped with the through-hole on atomizing conical plate (4).

4. The multi-energy multifunctional energy-saving emission-reducing burner as claimed in claim 1, characterized in that: the gas turbine is characterized in that one side of the connecting plate (9), which is close to the weak combustion area (3), is fixedly connected with a guide conical plate (8), the guide conical plate (8) is located on one side, which is close to the inner vortex plate, of the natural gas spray pipe (12), and one end, which is far away from the connecting plate (9), of the guide conical plate (8) extends outwards to form a horn shape.

5. The multi-energy multi-functional energy-saving emission-reducing burner according to claim 2, characterized in that: the outer vortex plate (6) and the inner vortex plate (10) are of helical blade structures.

6. The multi-energy multifunctional energy-saving emission-reducing burner as claimed in claim 1, characterized in that: the natural gas supply system comprises a gas control valve, a filter and a natural gas pipe, wherein the gas control valve and the filter are connected in series on the natural gas pipe.

7. The multi-energy multifunctional energy-saving emission-reducing burner as claimed in claim 1, characterized in that: the air supply system comprises a fan, an air door, a silencer and an air conveying cylinder, wherein the fan, the air door and the silencer are connected to the air conveying cylinder in series.