CN211952763U

CN211952763U - Heavy oil and gas dual-purpose burner

Info

Publication number: CN211952763U
Application number: CN202020246646.9U
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: 2020-03-03
Filing date: 2020-03-03
Publication date: 2020-11-17
Anticipated expiration: 2030-03-03

Abstract

The utility model discloses a dual-purpose combustor of heavy oil gas, including combustor casing, vortex board, fuel nozzle, gas spray tube, combustor casing inside includes strong combustion chamber, weak combustion chamber, inlet chamber, the inside central point of combustor casing puts fixedly connected with fuel nozzle, the outside fixedly connected with gas inlet cylinder of fuel nozzle, the outside of fuel nozzle is equipped with mixed inflator, the outside fixedly connected with vortex board of mixed inflator, the vortex board outside fixedly connected with ventilative brace bar, fixedly connected with annular air flue on the outer wall of combustor casing, the gas spray tube has been alternate on the ventilative brace bar, and the gas spray tube inner chamber is linked together with annular air flue's inner chamber; the gas inlet device is characterized in that a gas input pipe is connected inside the annular gas passage, and the other end of the gas input pipe is connected to a gas inlet cylinder. The utility model discloses can burn natural gas and fuel respectively, improve combustor application range.

Description

Heavy oil and gas dual-purpose burner

The technical field is as follows:

the utility model relates to a combustor technical field, concretely relates to dual-purpose combustor of heavy oil gas.

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 existing burner generally adopts diesel oil as fuel to burn, heat is provided for using equipment, and the price of the diesel oil is continuously high, so that the use cost of the diesel oil burner is increased. In order to improve the economic benefits of the burners, manufacturers of large burners research and develop burners with better economic effects such as natural gas and heavy oil, the existing novel burners researched and developed by researchers are generally researched and developed aiming at burners with single fuel such as natural gas or heavy oil, and the research on burners with heavy oil and natural gas as fuel in the same burner is still blank. In order to improve the comprehensive utilization efficiency of the burner on the fuel and improve the economic benefit of the burner, the research and development of the burner which respectively utilizes the fuel of heavy oil and natural gas on the same burner are very necessary.

The utility model has the following contents:

the utility model aims at solving the technical problem and providing a dual-purpose burner for heavy oil and gas.

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

the utility model provides a dual-purpose combustor of heavy oil gas, includes combustor casing, vortex board, fuel nozzle, gas spray tube, the combustor casing is the shell structure, combustor casing is inside including strong combustion chamber, weak combustion chamber, air inlet chamber, the inside central point of combustor casing puts fixedly connected with fuel nozzle, the outside fixedly connected with gas air inlet cylinder of fuel nozzle, the outside of fuel nozzle is equipped with mixed inflator, mixed inflator is located the gas air inlet cylinder outside, the inner chamber of gas air inlet cylinder communicates with each other with mixed inflator inner chamber and the end of giving vent to anger of gas air inlet cylinder is located mixed inflator, there is the vortex board the outside of mixed inflator, the vortex board is helical structure, the ventilative backup pad of vortex board outside fixedly connected with, the outside fixedly connected with guide cylinder of ventilative backup pad strip, the air inlet chamber is located the right side of vortex board, the weak combustion chamber is positioned on the left side of the vortex plate, air in the air inlet chamber can enter the weak combustion chamber from the vortex plate, the strong combustion chamber is positioned on one side of the weak combustion chamber, which is far away from the air inlet chamber, and the air inlet chamber is used for conveying pressure air provided by an air source to the weak combustion chamber and the strong combustion chamber; the end part of the fuel nozzle is provided with an oil inlet nozzle, the fuel nozzle is used for atomizing pressure fuel entering from the oil inlet nozzle to be sprayed out to the weak combustion chamber in an umbrella shape, and air in the air inlet chamber can enter the strong combustion chamber through a gap between the guide cylinder and the inner wall of the combustor shell; the outer wall of the combustor shell is fixedly connected with an annular air passage which is circumferentially arranged, the outer wall of the annular air passage is fixedly connected with a gas interface, the gas interface is connected with a natural gas source, a gas spray pipe is inserted between the air-permeable supporting laths, the gas outlet end of the gas spray pipe is positioned in a transition region from a weak combustion chamber to a strong combustion chamber, the gas inlet end of the gas spray pipe is connected with the inner wall of the annular air passage, and the inner cavity of the gas spray pipe is communicated with the inner cavity of the annular air passage; the gas inlet device is characterized in that a gas input pipe is connected inside the annular gas passage, the other end of the gas input pipe is connected to a gas inlet cylinder, the gas input pipe is used for conveying gas in the annular gas passage to an inner cavity of the gas inlet cylinder, and the mixing cylinder is used for mixing the gas in the gas inlet cylinder with pressure air entering from the gas inlet chamber and spraying the gas to the weak combustion chamber.

Furthermore, a gas interface on the outer wall of the annular air passage is connected with a gas supply system, the oil inlet nozzle is connected with a fuel supply system, and the air inlet chamber is connected with an air supply system of the combustion chamber.

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

Further, the fuel supply system comprises an oil storage tank, a fuel pump, a safety valve, an oil pressure gauge, a filter, an electromagnetic valve and an oil line pipe, wherein the fuel pump is installed in an oil line of the oil storage tank connected with a heavy oil nozzle and used for pumping oil out of the oil storage tank, the filter is installed at an inlet of the fuel pump, the electromagnetic valve is connected in series at an outlet of the filter through the oil line pipe, the tail end of the oil line pipe is connected to an oil inlet nozzle, and the safety valve and the pressure gauge are installed on the oil line pipe.

Furthermore, the air supply system comprises a fan, an air door, a silencer and a cylinder body, wherein the fan, the air door and the silencer are connected in series on the cylinder body, and the cylinder body is connected with the air inlet chamber.

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 quantity of heavy oil and fuel gas, pressure and air quantity of a fan).

The utility model provides a pair of dual-purpose combustor of heavy oil gas has following beneficial effect: through structural fusion, the combustor can respectively combust natural gas and fuel oil, and the application range of the combustor is enlarged; the combustor combustion chamber disclosed in the application gradually raises the temperature to high temperature through low-temperature combustion in the weak combustion chamber to enhance combustion, and through supplying air for many times, the combustion is divided into zones, so that heavy oil and natural gas are sufficiently combusted, the emission is low, and harmful compounds such as NO and CO in tail gas discharged by combustion are reduced.

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 heavy oil and gas dual-purpose burner provided by the present invention;

fig. 2 is a schematic view of gas and fuel circulation in the dual-purpose burner for heavy oil and gas provided by the present invention.

The reference numbers in the figures illustrate: 1-combustor shell, 2-strong combustion chamber, 3-weak combustion chamber, 4-air inlet chamber, 5-vortex plate, 6-fuel nozzle, 61-gas inlet cylinder, 62-mixing cylinder, 63-oil inlet nozzle, 7-gas nozzle, 8-air permeable supporting strip, 81-guide cylinder, 9-annular air channel, 91-gas interface and 92-gas input pipe.

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, a dual-purpose burner for heavy oil and gas comprises a burner housing 1, a scroll plate 5, a fuel nozzle 6 and a gas nozzle 7, wherein the burner housing 1 is of an empty shell structure, the burner housing 1 comprises a strong combustion chamber 2, a weak combustion chamber 3 and a gas inlet chamber 4 inside, the fuel nozzle 6 is fixedly connected to the center position inside the burner housing 1, a gas inlet cylinder 61 is arranged outside the fuel nozzle 6, a mixed gas cylinder 62 is fixedly connected to the outside of the fuel nozzle 6, the mixed gas cylinder 62 is positioned outside the gas inlet cylinder 61, the inner cavity of the gas inlet cylinder 61 is communicated with the inner cavity of the mixed gas cylinder 62, the gas outlet end of the gas inlet cylinder 61 is positioned inside the mixed gas cylinder 62, the scroll plate 5 is of a spiral structure, the outer side of the scroll plate 5 is fixedly connected with a gas permeable supporting lath 8, the guide cylinder 81 is fixedly connected to the outer side of the air-permeable supporting lath 8, the air inlet chamber 4 is positioned on the right side of the vortex plate 5, the weak combustion chamber 3 is positioned on the left side of the vortex plate 5, air in the air inlet chamber 4 can enter the weak combustion chamber 3 from the vortex plate 5, the strong combustion chamber 2 is positioned on one side of the weak combustion chamber 3 far away from the air inlet chamber 4, and the air inlet chamber 4 is used for conveying pressure air provided by an air source to the weak combustion chamber 3 and the strong combustion chamber 2; the end part of the fuel nozzle 6 is provided with an oil inlet nozzle 63, the fuel nozzle 6 is used for atomizing pressure fuel entering from the oil inlet nozzle 63 to be sprayed out to the weak combustion chamber 3 in an umbrella shape, and air in the air inlet chamber 4 can enter the strong combustion chamber 2 through a gap between the guide cylinder 81 and the inner wall of the combustor shell 1; the outer wall of the combustor shell 1 is fixedly connected with an annular air passage 9 which is circumferentially arranged, the outer wall of the annular air passage 9 is fixedly connected with a gas interface 91, the gas interface 91 is connected with a natural gas source, a gas spray pipe 7 is inserted between the air-permeable supporting laths 8, the gas outlet end of the gas spray pipe 7 is positioned in the transition region from the weak combustion chamber 3 to the strong combustion chamber 2, the gas inlet end of the gas spray pipe 7 is connected with the inner wall of the annular air passage 9, and the inner cavity of the gas spray pipe 7 is communicated with the inner cavity of the annular air passage 9; the inside of the annular air passage 9 is connected with a gas input pipe 92, the other end of the gas input pipe 92 is connected to the gas inlet cylinder 61, the gas input pipe 92 is used for conveying the gas in the annular air passage 9 to the inner cavity of the gas inlet cylinder 61, and the mixed gas cylinder 62 is used for mixing the gas in the gas inlet cylinder 61 with the pressure air entering from the gas inlet chamber 4 and spraying the gas to the weak combustion chamber 3.

Specifically, the gas interface 91 on the outer wall of the annular air passage 9 is connected with a gas supply system, the oil inlet nozzle 63 is connected with a fuel supply system, and the air inlet chamber 4 is connected with a combustion chamber air supply system.

Specifically, the gas supply system includes a gas control valve, a filter, and a gas pipe, the gas control valve and the filter are connected in series to the gas pipe, and the gas pipe is connected to the gas connector 91.

Specifically, the fuel supply system comprises an oil storage tank, a fuel pump, a safety valve, an oil pressure gauge, a filter, an electromagnetic valve and an oil line pipe, wherein the fuel pump is installed in an oil line of the oil storage tank connected with a heavy oil nozzle and used for pumping oil out of the oil storage tank, the filter is installed at an inlet of the fuel pump, the safety valve, the pressure gauge and the electromagnetic valve are connected with an outlet of the fuel pump in series through the oil line pipe, and the tail end of the oil line pipe is connected to the oil inlet nozzle 63.

Specifically, the air supply system comprises a fan, an air door, a silencer and a cylinder, wherein the fan, the air door and the silencer are connected in series on the cylinder, and the cylinder is connected with the air inlet chamber 4.

By adopting the technical scheme, the heating system for the asphalt mixing equipment has the advantages that the combustor can combust natural gas and fuel oil through structural fusion, and the application range of the combustor is widened; the combustor combustion chamber disclosed in the application gradually raises the temperature to high temperature through low-temperature combustion in the weak combustion chamber to enhance combustion, and through supplying air for many times, the combustion is divided into zones, so that heavy oil and natural gas are sufficiently combusted, the emission is low, and harmful compounds such as NO and CO in tail gas discharged by combustion are reduced.

The utility model discloses in, as shown in fig. 2, when adopting the heavy oil as the energy, fuel nozzle 6 spouts fuel E to weak combustion chamber 3, vortex board 5 forms the vortex with first air current A and second air current B, and in first room air current A's partial air stream entered mixed inflator 62, also spout the vortex, in weak combustion chamber 3, strike the mixed atomizing of fuel, the ignition combustion spouts to strong combustion chamber 2, from weak combustion chamber 3 spun burning flame under third air current C and fourth air current D's effect, continue the burning in strong combustion chamber 2, rising combustion temperature reaches abundant burning purpose, realize low emission.

As shown in fig. 2, when natural gas is used as the energy source, the fuel gas F is branched to enter the fuel gas inlet pipe 92, then enters the fuel gas inlet cylinder 61, is sprayed out to be mixed and atomized with the air in the mixing cylinder 62, and then is sprayed into the weak combustion chamber 3 in an umbrella shape. The weak combustion chamber 3 is ignited to combust and spray to the strong combustion chamber 2 under the impact of the vortex air flows of the first air flow A and the second air flow B; meanwhile, the fuel gas F is shunted to enter the fuel gas nozzle 7 through the annular air passage 9 and is sprayed into the strong combustion chamber 2 from the fuel gas nozzle 7 to be mixed with the combustion gas flowing into the weak combustion chamber 3. The combustion flame sprayed out from the weak combustion chamber 3 continues to burn in the strong combustion chamber 2 under the action of the third air flow C and the fourth air flow D, the combustion temperature is increased, so that the gas is in a complete combustion state, and the low emission of harmful substances (NO and CO) in tail gas is realized.

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 dual-purpose combustor of heavy oil gas which characterized in that: comprises a burner shell (1), a vortex plate (5), a fuel nozzle (6) and a fuel gas nozzle (7), wherein the burner shell (1) is of an empty shell structure, the inside of the burner shell (1) comprises a strong combustion chamber (2), a weak combustion chamber (3) and an air inlet chamber (4), the fuel nozzle (6) is fixedly connected with the inner center of the burner shell (1), the outer side of the fuel nozzle (6) is fixedly connected with a fuel gas inlet cylinder (61), the outer side of the fuel nozzle (6) is provided with a mixed gas cylinder (62), the mixed gas cylinder (62) is positioned outside the fuel gas inlet cylinder (61), the inner cavity of the fuel gas inlet cylinder (61) is communicated with the inner cavity of the mixed gas cylinder (62), the air outlet end of the fuel gas inlet cylinder (61) is positioned inside the mixed gas cylinder (62), the outer side of the mixed gas cylinder (62) is fixedly connected with the vortex plate (5), the vortex plate (5) is of a spiral structure, a breathable support plate strip (8) is fixedly connected to the outer side of the vortex plate (5), a guide cylinder (81) is fixedly connected to the outer side of the breathable support plate strip (8), the air inlet chamber (4) is located on the right side of the vortex plate (5), the weak combustion chamber (3) is located on the left side of the vortex plate (5), air in the air inlet chamber (4) can enter the weak combustion chamber (3) from the vortex plate (5), the strong combustion chamber (2) is located on one side, away from the air inlet chamber (4), of the weak combustion chamber (3), and the air inlet chamber (4) is used for conveying pressure air provided by an air source to the weak combustion chamber (3) and the strong combustion chamber (2); an oil inlet nozzle (63) is arranged at the end part of the fuel nozzle (6), the fuel nozzle (6) is used for atomizing pressure fuel entering from the oil inlet nozzle (63) to be sprayed out to the weak combustion chamber (3) in an umbrella shape, and air in the air inlet chamber (4) can enter the strong combustion chamber (2) through a gap between the guide cylinder (81) and the inner wall of the combustor shell (1); the outer wall of the combustor shell (1) is fixedly connected with an annular air passage (9) which is circumferentially arranged, the outer wall of the annular air passage (9) is fixedly connected with a gas interface (91), the gas interface (91) is connected with a natural gas source, a gas spray pipe (7) is inserted between the breathable supporting strips (8), the gas outlet end of the gas spray pipe (7) is positioned in a transition region from the weak combustion chamber (3) to the strong combustion chamber (2), the gas inlet end of the gas spray pipe (7) is connected with the inner wall of the annular air passage (9), and the inner cavity of the gas spray pipe (7) is communicated with the inner cavity of the annular air passage (9); the gas mixing device is characterized in that a gas input pipe (92) is connected to the inner portion of the annular gas passage (9), the other end of the gas input pipe (92) is connected to the gas inlet cylinder (61), the gas input pipe (92) is used for conveying gas in the annular gas passage (9) to the inner cavity of the gas inlet cylinder (61), and the gas mixing cylinder (62) is used for mixing gas in the gas inlet cylinder (61) with pressure air entering from the gas inlet chamber (4) and spraying the gas to the weak combustion chamber (3).

2. The dual-purpose burner of claim 1, wherein: and a gas interface (91) on the outer wall of the annular air passage (9) is connected with a gas supply system, the oil inlet nozzle (63) is connected with a fuel oil supply system, and the air inlet chamber (4) is connected with a combustion chamber air supply system.

3. The dual-purpose burner of claim 2, wherein: the gas supply system comprises a gas control valve, a filter and a gas pipe, wherein the gas control valve and the filter are connected in series on the gas pipe, and the gas pipe is connected with a gas interface (91).

4. The dual-purpose burner of claim 2, wherein: the fuel supply system comprises an oil storage tank, a fuel pump, a safety valve, an oil pressure gauge, a filter, an electromagnetic valve and an oil line pipe, wherein the fuel pump is installed in an oil line of a heavy oil nozzle connected with the oil storage tank and used for pumping oil out of the oil storage tank, the filter is installed at an inlet of the fuel pump, the safety valve and the pressure gauge are installed at an outlet of the fuel pump, the electromagnetic valve is connected in series through the oil line pipe, and the tail end of the oil line pipe is connected to an oil inlet nozzle (63).

5. The dual-purpose burner of claim 2, wherein: the air supply system comprises a fan, an air door, a silencer and a barrel, wherein the fan, the air door and the silencer are connected in series on the barrel, and the barrel is connected with the air inlet chamber (4).