Methanol and fuel oil dual-fuel burner system based on revolving cup atomization

Abstract

The invention relates to the field of burner technical equipment, and discloses a rotary cup atomization-based methanol and fuel dual-fuel burner system which comprises a burner shell and an air guide shell, a flame stabilizing disc, a rotary cup, an oil distributing disc and an air guide disc are arranged in the air guide shell, a rotating structure is arranged in the burner shell, a fuel pipeline and a methanol pipeline are arranged in the burner shell, and the fuel pipeline and the methanol pipeline are arranged in the air guide disc. The methanol pipeline is located in the atomization air duct, the atomization air duct is connected with a supporting pipeline of the rotating structure, and an energy storage ring is arranged at the foremost end of the air guide shell. The safety problem caused by fuel mixing is avoided, the utilization efficiency of the fuel is improved, the danger caused by leakage of a methanol pipeline is avoided, and leaked methanol can be effectively utilized to be blown into the revolving cup.

Description

Technical Field

[0001] The invention relates to the field of burner technical equipment, in particular to a methanol and fuel oil dual-fuel burner system based on rotary cup atomization. Background Art

[0002] When the previous burners were in use, the two fuels in the burner were not separated. When in use, the fuel remaining in the burner was easy to mix, affecting subsequent use. When the fuel leaked, it was easy to leak directly in the burner, causing safety hazards. When the fuel entered the boiler, the fuel was not gasified in time, resulting in inefficient use of the fuel.

[0003] In the document CN202410132485, a methanol fuel vaporization burner for a boiler is disclosed, including a fuel system, an air system, a vaporization chamber and an ignition system; the fuel system is used to supply methanol liquid mist to the vaporization chamber, the ignition system is used to ignite methanol at the outlet of the vaporization chamber, and the air system is used to supply air to the vaporization chamber; the inner wall of the vaporization chamber is distributed with a circle of gas channels parallel to the depth direction of the vaporization chamber, and the gas channel is connected with a guide pipe distributed along the depth direction of the vaporization chamber, and the guide pipe is inclined to the outlet of the vaporization chamber at a preset angle and deviates from the axis of the gas channel at a preset angle; one of the adjacent gas channels is used as a flue gas channel and the other as a secondary air channel. When the methanol of this structure is then vaporized, the methanol vaporization speed is slow due to the lack of temperature heating.

[0004] Therefore, a new technical solution is needed to solve the above technical problems. Summary of the invention

[0005] In order to solve the above problems, the present invention discloses a methanol and fuel oil dual-fuel burner system based on rotary cup atomization, which avoids safety problems caused by fuel mixing, improves fuel utilization efficiency, avoids the danger of leakage in methanol pipelines, and can effectively utilize the leaked methanol and blow it into the rotary cup.

[0006] The technical solution of the present invention is: a methanol and fuel dual-fuel burner system based on rotary cup atomization, comprising a burner shell and an air guide shell, wherein a flame stabilizing disk, a rotary cup, an oil separation disk and an air guide disk are arranged in the air guide shell, a rotating structure is arranged in the burner shell, a fuel pipeline and a methanol pipeline are arranged in the burner shell, the methanol pipeline is located in the atomizing air duct, the atomizing air duct is connected to the supporting pipeline of the rotating structure, and an energy storage ring is arranged at the front end of the air guide shell.

[0007] By adopting the above technical solution, when fuel is needed in the boiler, one of methanol and fuel oil is selected, and the methanol or fuel oil is input into the rotor through the corresponding pipeline, and then the fuel oil or methanol is transported to the boiler through the oil separator and the rotor through the heating of the energy storage ring.

[0008] Preferably, the end of the atomizing air duct is connected to the supporting pipe, the methanol pipeline runs through the atomizing air duct as a whole, and the methanol pipeline always remains in the atomizing air duct.

[0009] By adopting the above technical solution, if methanol leaks in the pipeline, and the methanol pipeline is in the atomizing air duct, the atomizing wind in the atomizing air duct will blow the leaked methanol into the rotary cup until it is blown into the boiler. The methanol pipeline enters the burner through the atomizing air duct, forming a double-wall pipe structure, thereby preventing methanol leakage from directly entering the burner shell.

[0010] Preferably, the support pipe runs through the burner shell in height direction, the bottom of the support pipe is located in the burner shell, the head end is located in the air guide shell, and a wind shield plate is provided at one end of the periphery of the part of the support pipe located in the air guide shell.

[0011] By adopting the above technical solution, the combustion wind is blocked by the wind shield plate, and the wind pressure before the wind shield plate is higher than the wind pressure after the wind shield plate. The combustible components cannot return to the inside of the burner shell, and the inside of the burner shell is structurally made into a non-explosion-proof area, thereby achieving an absolutely safe structure for the use of methanol inside the shell.

[0012] Preferably, a gap is provided between the circumference of the wind shield plate and the side wall of the wind guide housing, and the wind shield plate as a whole presents a shape that is wide at the center and narrow at both sides.

[0013] By adopting the above technical solution, the combustion wind can only enter the combustion head through the gap between the wind shield plate and the burner shell after being blocked by the wind shield plate. This gap is very small relative to the cross-section of the burner shell, which can effectively realize the uniform entry of the combustion wind into the combustion head and ensure stable combustion.

[0014] Preferably, a rotor sleeve is connected to the end of the supporting pipe, a flame stabilizing disk is provided on the periphery of the end of the rotor sleeve, a gap is provided between the rotor sleeve and the flame stabilizing disk, the outer edge of the rotor sleeve is stuck in the air guide disk, and a rotor sleeve is provided with a rotor cup.

[0015] By adopting the above technical solution, the fuel can be mixed more quickly and enter the boiler by conveying the fuel to the rotor.

[0016] Preferably, a rotating shaft passes through the supporting pipe through the rotating shaft base, the part of the rotating shaft located at the outer end of the supporting pipe is driven by a belt and a motor, the output end of the rotating shaft is connected to the rotating cup, and an oil separator is also provided on the rotating shaft inside the rotating cup.

[0017] By adopting the above technical solution, the rotating shaft is driven by the motor to drive the rotating cup to rotate, so that the fuel is evenly and quickly distributed to the boiler.

[0018] Preferably, a guide pipe is provided outside the rotating shaft base, and the guide pipe includes a fuel guide pipe and a methanol guide pipe. The fuel guide pipe and the methanol guide pipe are placed opposite to each other in an L-shape and are closely attached to the surface of the rotating shaft base.

[0019] Preferably, the outlet ends of the fuel diversion pipeline and the methanol diversion pipeline are connected to the oil separation plate, and the methanol outlet of the methanol pipeline and the fuel outlet of the fuel pipeline are connected to the methanol diversion pipeline and the fuel diversion pipeline respectively.

[0020] By adopting the above technical solution, the fuel enters the rotary cup from the oil separator through the diversion pipes. The diversion pipes are separated from each other. The internal flow channel design separates different fuels to avoid the risk of mixing different fuels.

[0021] Preferably, a circle of air guide plates is arranged around the flame stabilizing plate, the interior of the air guide plates is hollow, and the cross section thereof is a trapezoid with a small outside and a large inside, and air guide plates are arranged at parallel intervals on the outer side of the air guide plates.

[0022] By adopting the above technical scheme, the combustion wind flows out to the boiler from the gap between the air guide plate and the rotor sleeve, and from the gap between the air guide plate and the air guide enclosure. The combustion wind is blocked by the wind shield plate. The wind pressure before the wind shield plate is higher than the wind pressure after the wind shield plate. The combustible components cannot return to the inside of the burner shell. Structurally, the inside of the burner shell becomes a non-explosion-proof area, realizing an absolutely safe structure for the use of methanol inside the shell.

[0023] Preferably, the energy storage ring is in the shape of a ceramic ring located on the top of the air guide plate, and the width of the energy storage ring is not greater than the width of the top of the air guide plate.

[0024] By adopting the above technical solution, the energy storage ring can absorb the radiant heat of the fuel combustion in the boiler and release it to heat the liquid fuel, so that the fuel in the air guide shell can be quickly vaporized and burned efficiently after being ejected.

[0025] The benefits of the present invention are as follows: 1. The present invention arranges the methanol pipeline in the atomizing air duct. If the methanol in the methanol pipeline leaks, it will only leak in the atomizing air duct and will not leak in the burner. The methanol leaked in the atomizing air duct will also be blown out from between the rotor cup and the rotor cup sleeve into the boiler by the atomizing wind. While providing safety protection for the methanol, it can also reduce the loss of the methanol and also make use of the leaked methanol.

[0026] 2. The present invention provides an energy storage ring on the top of the air guide plate. The energy storage ring absorbs the radiant heat of fuel combustion. When the fuel enters the boiler from the rotor, the energy storage ring releases the absorbed heat to heat the liquid fuel, so that the fuel can be quickly gasified after being ejected and burn efficiently.

[0027] 3. The fuel pipelines of the present invention are independent of each other, which avoids cross-mixing of different fuels, improves the overall safety performance of the burner system, and can increase the rate of conversion of methanol liquid into methanol gas to achieve efficient combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 The present invention is Figure 1 A schematic diagram of the structure of another side view; Figure 3 It is a structural schematic diagram of the flow guide pipe of the present invention; Figure 4 The present invention is Figure 3 Schematic diagram of the structure of the other side view.

[0029] Among them: 1. burner shell, 2. air guide shell, 3. methanol pipeline, 4. atomizing air duct, 5. fuel pipeline, 6. supporting pipeline, 7. shaft base, 8. shaft, 9. wind shield plate, 10. rotor cup sleeve, 11. rotor cup, 12. oil distribution plate, 13. fuel guide pipe, 14. methanol guide pipe, 15. flame stabilizing plate, 16. air guide plate, 17. air guide plate, 18. energy storage ring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] like Figure 1-4 As shown, a methanol and fuel dual-fuel burner system based on rotary cup atomization includes a burner shell 1 and an air guide shell 2, wherein a flame stabilizing disk 15, a rotary cup 11, an oil separator 12 and an air guide disk 16 are arranged in the air guide shell 2, a rotating structure is arranged in the burner shell 1, a fuel pipeline 5 and a methanol pipeline 3 are arranged in the burner shell 1, the methanol pipeline 3 is located in the atomizing air duct 4, the atomizing air duct 4 is connected to the supporting pipeline 6 of the rotating structure, an energy storage ring 1 is arranged at the front end of the air guide shell 2, when fuel is needed in the boiler, one of methanol and fuel is selected, and the methanol or fuel is input into the rotary cup 11 through the corresponding pipeline, and then the fuel or methanol is transported to the boiler through the oil separator 12 and the rotary cup 11 through the heating of the energy storage ring 18.

[0032] The end of the atomizing air duct 4 is connected to the supporting pipe 6, and the methanol pipeline 3 runs through the atomizing air duct 4 as a whole, and the methanol pipeline 3 always remains in the atomizing air duct 4. If methanol leaks in the pipeline, and the methanol pipeline 3 is in the atomizing air duct 4, the atomizing wind in the atomizing air duct 4 will blow the leaked methanol into the rotating cup 11 until it is blown into the boiler. The methanol pipeline 3 enters the burner through the atomizing air duct 4, forming a double-walled pipe structure to prevent methanol leakage from directly entering the burner housing 1.

[0033] The support pipe 6 runs through the burner shell 1 in the height direction, the bottom of the support pipe 6 is located in the burner shell 1, the head end is located in the wind guide shell 2, and the outer periphery of the part of the support pipe 6 located in the wind guide shell 2 is provided with a wind shield plate 9 at one end. The combustion wind is blocked by the wind shield plate 9, and the wind pressure before the wind shield plate 9 is higher than the wind pressure after the wind shield plate 9. The combustible components cannot return to the inside of the burner shell 1. Structurally, the inside of the burner shell 1 becomes a non-explosion-proof area, realizing an absolutely safe structure for the use of methanol inside the shell.

[0034] There is a gap between the circumference of the wind shield plate 9 and the side wall of the air guide shell 2, that is, the diameter of the wind shield plate 9 is smaller than the diameter of the air guide shell 2. The wind shield plate 9 as a whole is wide at the center and narrow on both sides. After being blocked by the wind shield plate 9, the combustion wind can only enter the combustion head through the gap between the wind shield plate 9 and the burner shell 1. This gap is very small relative to the cross-section of the burner shell 1, which can effectively realize the uniform entry of the combustion wind into the combustion head, thereby ensuring stable combustion.

[0035] A rotor sleeve 10 is connected to the end of the supporting pipe 6, and a flame stabilizing disk 15 is provided on the periphery of the end of the rotor sleeve 10. A gap is provided between the rotor sleeve 10 and the flame stabilizing disk. The outer edge of the rotor sleeve 10 is stuck in the air guide disk 16. A rotor sleeve is provided with a rotor cup. By conveying the fuel to the rotor cup, the fuel can be mixed more quickly and enter the boiler.

[0036] A rotating shaft 8 passes through the supporting pipe 6 through the rotating shaft base 7. The part of the rotating shaft 8 located at the outer end of the supporting pipe 6 is driven by a belt and a motor. The output end of the rotating shaft 8 is connected to a rotating cup 11. An oil distribution plate 12 is also provided on the rotating shaft 8 inside the rotating cup 11. The rotating shaft 8 is driven by the motor to drive the rotating cup 11 to rotate, thereby evenly and quickly distributing the fuel to the boiler.

[0037] A guide pipe is provided outside the rotating shaft base 7, and the guide pipe includes a fuel guide pipe 13 and a methanol guide pipe 14. The fuel guide pipe 13 and the methanol guide pipe 14 are placed opposite to each other in an L-shape and are tightly attached to the surface of the rotating shaft base 7. The outlet ends of the fuel guide pipe 13 and the methanol guide pipe 14 are connected to the oil separation plate 12, and the methanol outlet of the methanol pipeline and the fuel outlet of the fuel pipeline are connected to the methanol guide pipe 14 and the fuel guide pipe 13 respectively. The fuel enters the rotating cup 11 from the oil separation plate 12 through the guide pipe. The guide pipes are separated from each other. Through the internal flow channel design, different fuels are separated to avoid the risk of mixing different fuels.

[0038] A circle of air guide plates 16 are arranged around the flame stabilizing plate 15. The interior of the air guide plates 16 is hollow, and its cross section is a trapezoid with a small outside and a large inside. Air guide panels 17 are arranged parallel to the outer side of the air guide plates 16. The combustion wind flows out to the boiler from the gap between the air guide plates 16 and the rotor sleeve 10, and from the gap between the air guide plates 16 and the air guide panels 17. The combustion wind is blocked by the wind shield plate 9. The wind pressure before the wind shield plate 9 is higher than the wind pressure after the wind shield plate 9. The combustible components cannot return to the inside of the burner shell 1. Structurally, the inside of the burner shell 1 becomes a non-explosion-proof area, realizing an absolutely safe structure for the use of methanol inside the shell.

[0039] The energy storage ring 18 is a ceramic ring located on the top of the air guide plate 16. The width of the energy storage ring 18 is not greater than the width of the top of the air guide plate 16. The energy storage ring 18 can absorb the radiant heat from the combustion of the fuel in the boiler and release it to heat the liquid fuel, so that the fuel in the air guide shell 2 can be quickly vaporized after being sprayed out and burn efficiently. The methanol flow rate is twice that of the fuel oil, and it has a large latent heat of vaporization.

[0040] The methanol pipeline 3 or the fuel pipeline 5 transfers the fuel required by the boiler from the guide pipeline into the oil separator 12 through the corresponding pipeline, and then enters the rotary cup 11 from the oil separator 12. During this period, the atomizing wind in the atomizing air duct 4 passes through the gap between the rotary cup sleeve 10 and the rotary cup 11 to accelerate the fuel to be blown out of the rotary cup 11. The combustion wind passes through the gap between the wind shield plate 9 and the side wall of the air guide shell 2 from the burner shell 1, enters the air guide shell, and then flows out from the channel between the air guide plate 16 and the air guide plate 17 on one side of the air guide shell, thereby accelerating the flow of the fuel. The fuel enters the boiler after passing through the energy storage ring 18.

[0041] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention, and the purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A methanol and fuel dual-fuel burner system based on rotary cup atomization, comprising a burner housing and an air guide housing, wherein a flame stabilizing disk, a rotary cup, an oil separation disk and an air guide disk are arranged in the air guide housing, and a rotating structure is arranged in the burner housing, characterized in that: A fuel pipeline and a methanol pipeline are arranged in the burner shell. The methanol pipeline is located in the atomizing air duct. The atomizing air duct is connected to the supporting pipeline of the rotating structure. An energy storage ring is arranged at the front end of the air guide shell.

2. A methanol and fuel oil dual fuel burner system based on rotary cup atomization according to claim 1, characterized in that: The end of the atomizing air duct is communicated with the supporting pipeline, the methanol pipeline runs through the atomizing air duct as a whole, and the methanol pipeline always remains in the atomizing air duct.

3. The methanol and fuel oil dual fuel burner system based on rotary cup atomization according to claim 1, characterized in that: The support pipe runs through the burner shell in height direction, the bottom of the support pipe is located in the burner shell, the head end is located in the air guide shell, and a wind shield plate is provided at one end of the periphery of the support pipe located in the air guide shell.

4. The methanol and fuel oil dual fuel burner system based on rotary cup atomization according to claim 1, characterized in that: There is a gap between the circumference of the wind shield plate and the side wall of the wind guide housing, that is, the diameter of the wind shield plate is smaller than the diameter of the wind guide housing, and the wind shield plate as a whole presents a shape that is wide at the center and narrow at both sides.

5. The methanol and fuel oil dual fuel burner system based on rotary cup atomization according to claim 1 is characterized in that: A rotating cup sleeve is connected to the end of the supporting pipe, a flame stabilizing disk is arranged on the periphery of the end of the rotating cup sleeve, a gap is arranged between the rotating cup sleeve and the flame stabilizing disk, the outer edge of the rotating cup sleeve is stuck in the air guide disk, and a rotating cup is arranged in the rotating cup sleeve.

6. The methanol and fuel oil dual fuel burner system based on rotary cup atomization according to claim 1, characterized in that: A rotating shaft passes through the supporting pipe through the rotating shaft base. The part of the rotating shaft located at the outer end of the supporting pipe is driven by a belt and a motor. The output end of the rotating shaft is connected to a rotating cup. An oil separator is also provided on the rotating shaft in the rotating cup.

7. A methanol and fuel oil dual fuel burner system based on rotary cup atomization according to claim 6, characterized in that: A flow guide pipe is arranged outside the rotating shaft base, and the flow guide pipe includes a fuel flow guide pipe and a methanol flow guide pipe. The fuel flow guide pipe and the methanol flow guide pipe are placed opposite to each other in an L-shape and are closely attached to the surface of the rotating shaft base.

8. The methanol and fuel oil dual fuel burner system based on rotary cup atomization according to claim 7, characterized in that: The outlet ends of the fuel diversion pipeline and the methanol diversion pipeline are connected to the oil separation plate, and the methanol outlet of the methanol pipeline and the fuel outlet of the fuel pipeline are connected to the methanol diversion pipeline and the fuel diversion pipeline respectively.

9. The methanol and fuel oil dual fuel burner system based on rotary cup atomization according to claim 1, characterized in that: A circle of air guide plates are arranged around the flame stabilizing plate. The interior of the air guide plates is hollow, and the cross section thereof is a trapezoid with a small outside and a large inside. Air guide plates are arranged at intervals in parallel on the outer side of the air guide plates.

10. The methanol and fuel oil dual fuel burner system based on rotary cup atomization according to claim 8, characterized in that: The energy storage ring is in the shape of a ceramic ring located on the top of the air guide plate, and the width of the energy storage ring is not greater than the width of the top of the air guide plate.

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