Internal combustion alcohol fuel gasification combustion engine

Abstract

The utility model belongs to liquid fuel gasification combustion technical field especially an internal combustion alcohol fuel gasification combustion machine. The combustion machine has built-in combustion chamber, and the combustion process is mainly completed in the combustion chamber, and the air bellow communicates with the jacket cooling chamber and the combustion chamber, and adopts a combustion air fan to supply air to the air bellow. The combustion chamber of the combustion machine is provided with combustion air distribution branch pipes which are uniformly arranged along the circumference direction of the combustion air distribution chamber and fuel branch pipes which are uniformly arranged along the circumference direction of the fuel distribution chamber. When the combustion machine works, the fuel and the combustion air are firstly preheated and mixed in the combustion air distribution branch pipe, then flow into the combustion chamber, rotate along the circumference direction of the combustion chamber, further mix, gasify and burn, the fuel which is not completely gasified is accelerated after contacting the high temperature environment of the combustion chamber, and the fuel is completely gasified and burns completely when the fuel and the flame flow through the high temperature flame guide pipe and mix with the jacket air. The combustion process is clean, efficient, energy-saving, the fuel working pressure is low, and the combustion process is safe and reliable.

Description

Technical Field

[0001] This utility model belongs to the field of liquid fuel gasification combustion technology, and in particular to an internal combustion alcohol fuel gasification burner. Background Technology

[0002] Currently, the most widely used alcohol fuels are methanol, ethanol, and alcohol-based fuels, which are liquids at room temperature and pressure and generally have low boiling points and are highly volatile. In industrial production, the combustion technology for these alcohol liquid fuels typically employs spray combustion: the alcohol liquid fuel is atomized under high pressure and delivered in a mist form to the premixing chamber of the burner, where it is mixed with a certain proportion of air or oxygen and then ignited to generate high-energy heat.

[0003] When atomizing burners are operating, the high-pressure fuel pump can pressurize liquid alcohol fuel to 0.5-3 MPa or even higher. This places higher pressure resistance requirements on the fuel delivery system between the fuel pump and the high-pressure nozzle. If a leak occurs in the high-pressure fuel delivery system, the sprayed atomized fuel can create a larger safety hazard. The high-pressure nozzles used for atomization have a microporous structure, which also places higher demands on the purity of the liquid alcohol fuel raw materials and the fuel filtration system. Numerous and smaller impurities easily clog the filters and nozzles. Once clogged, the nozzle flow rate gradually decreases, resulting in a low fuel-air mixture concentration and a significant drop in burner power. In severe cases, it can even cause burner shutdown, frequent ignition, or even fuel deflagration in the combustion chamber. Alcohol fuel atomizing burners have a high failure rate in their high-pressure pumps, high-pressure pipelines, fuel supply systems, and nozzles, and filter maintenance and cleaning are cumbersome, which is detrimental to continuous production.

[0004] Spray-type burners suffer from limited dispersion of atomized liquid fuel, and the endothermic vaporization process during combustion easily leads to fuel participating in combustion as droplets, resulting in incomplete combustion and energy waste. Furthermore, the exhaust gases from incompletely burned alcohol fuels contain carbon monoxide, acids, alcohols, and aldehydes. These substances are highly corrosive to metal components and possess a degree of toxicity, which is detrimental to environmental protection. Utility Model Content

[0005] To overcome the shortcomings of existing spray-type burner technology, such as high fuel operating pressure, significant safety hazards, excessive exhaust emissions, and cumbersome maintenance hindering continuous production, this invention provides an internal combustion alcohol fuel gasification burner that addresses the low boiling point and volatile characteristics of alcohol liquid fuels. This device ensures that alcohol liquid fuels are fully gasified and participate in combustion within the combustion chamber and flame guide of the burner, with low fuel operating pressure (generally 0.05~0.2MPa). Furthermore, the burner is equipped with jacket temperature detection, flame detection, wind pressure detection, fuel pressure detection, and fuel overflow protection devices, improving the safety and visibility of operating parameters during burner use, and facilitating burner maintenance and troubleshooting.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: An internal combustion alcohol fuel gasification burner includes a fuel pump, a fuel delivery system, a combustion fan, a burner body, and pressure, flow, temperature, flame, and fuel overflow detection devices.

[0007] The fuel pump inlet is equipped with a fuel check valve, and the outlet is equipped with a fuel pressure detection device, a manual fuel master valve, a fuel filter valve, a fuel solenoid valve master valve, a flow meter inlet pipe, and a flow meter, all connected to the fuel inlet on the burner body. The fuel pressure detection device can detect abnormal pressure increases caused by blockage in the fuel pipeline between the fuel pump and the combustion chamber, or low pressure caused by insufficient fuel extraction by the fuel pump.

[0008] The outlet of the combustion fan is connected to the air box. A wind pressure detection device is installed on the air box inlet pipe, and a fuel overflow detection device is installed on the air box near the bottom plate.

[0009] The upper part of the bellows is provided with a jacketed air inlet that communicates with the jacketed cooling chamber. Cold air from the bellows flows through the jacketed air inlet to the jacketed cooling chamber and dissipates heat from the combustion chamber shell. Hot air flowing out of the jacketed air outlet pipe can further aid combustion.

[0010] The bellows is also connected to the combustion chamber via two pathways. Pathway 1: The bellows is connected to the combustion chamber via the combustion air distribution chamber and combustion air distribution branch pipes; Pathway 2: The bellows is connected to the combustion chamber via the flame detection device's heat dissipation pipe and flame observation pipe. Regardless of the pathway, the air flowing into the combustion chamber will directly participate in combustion within the combustion chamber.

[0011] The air box is connected to both the jacketed cooling chamber and the combustion chamber of the burner's main structure. The design, which uses a combustion-supporting fan to inject combustion air into the air box, prevents high-temperature gases from the combustion chamber and the flame ejection duct from flowing back into the air box via the aforementioned pathways. Backflow of high-temperature air into the air box hinders heat dissipation from the combustion chamber shell and the flame detection device, and may even cause safety hazards such as high temperatures or fire on the burner shell.

[0012] The burner body is equipped with a jacket temperature detection device, a high-pressure ignition needle, a flame sight glass, an ignition sight glass, a wind pressure detection device, a high-pressure igniter, a flame detection device, a flow meter, an ignition flow regulating valve, an ignition solenoid valve, a working solenoid valve, and a fuel overflow detection device.

[0013] The jacket temperature detection device is used to detect the jacket temperature. A low jacket temperature is not conducive to the vaporization of liquid fuel in the combustion chamber, while a high jacket temperature is conducive to the vaporization of liquid fuel in the combustion chamber. However, an excessively high jacket temperature will shorten the service life of the combustion chamber.

[0014] When the high-voltage igniter is working, an electric arc is generated between the high-voltage ignition needle and the ignition tube, which ignites the ignition fuel flowing below the ignition needle in the ignition tube. The ignition fuel and flame enter the combustion chamber through the flame observation tube with an inclined angle, igniting the fuel flowing into the combustion chamber from the working fuel pipe, thus completing the combustion chamber ignition.

[0015] The flame sight glass is used to observe the combustion flame inside the combustion chamber; the ignition sight glass is used to observe the ignition state of the ignition needle in the ignition tube, the ignition fuel flow rate, and the ignition flame condition when the burner is ignited.

[0016] The wind pressure detection device is mainly used to detect the pressure of the combustion fan and the air box, and to determine the working status of the combustion fan and the burner.

[0017] The flame detection device is mainly used to detect whether a flame has been established in the combustion chamber.

[0018] The flow meter is mainly used to detect the fuel flow rate during burner ignition and operation.

[0019] The fuel overflow detection device can detect abnormal situations where the fuel liquid level in the combustion chamber is too high and overflows into the air box through the combustion chamber air intake system.

[0020] The main fuel solenoid valve controls the fuel supply between the fuel pump and the burner body. The main fuel solenoid valve must remain open regardless of whether the burner is in ignition or normal operation. The ignition solenoid valve controls the fuel supply between the flow meter and the ignition tube. The ignition flow regulating valve adjusts the fuel flow rate during burner ignition. The working solenoid valve controls the fuel supply between the flow meter and the combustion chamber.

[0021] The upper part of the burner body has three layers from the outside to the inside: a heat insulation chamber, a jacketed cooling chamber, and a combustion chamber; the lower part of the burner body consists of a wind box and a wind box inlet pipe.

[0022] The heat insulation chamber is completely isolated from the jacket cooling chamber and the combustion chamber. The heat insulation chamber is filled with heat insulation material to prevent the upper part of the burner body from getting too hot, and also to slow down unnecessary temperature loss in the jacket cooling chamber, so as to ensure that the combustion chamber temperature is conducive to fuel gasification.

[0023] The jacketed cooling chamber is connected to the combustion chamber via a bellows. The jacketed cooling chamber contains jacketed air inlets connected to the bellows, jacketed air outlet pipes connected to the outside, and a jacketed temperature detection device, all evenly arranged along the circumference of the cooling chamber. To prevent short-circuiting of the jacketed air within the cooling chamber, which would hinder uniform heat dissipation from the combustion chamber shell, jacketed cooling chamber partitions are evenly arranged perpendicular to the bottom of the cooling chamber along the circumference of the combustion chamber shell. Jacketed air cyclone vanes are installed inside the outer port of the space between the jacketed air outlet pipe and the flame outlet pipe. Multiple jacketed air cyclone vanes are evenly arranged along the circumference of the jacketed air outlet pipe. This structure promotes balanced air pressure within the jacketed cooling chamber and further provides combustion-supporting air for the flame exiting the flame outlet pipe.

[0024] The combustion chamber is arranged in the jacketed cooling chamber above the air box via combustion chamber support legs.

[0025] The combustion chamber is equipped with a combustion air supply system that connects the combustion air distribution chamber and the air box via combustion air distribution branch pipes. Multiple combustion air distribution branch pipes are evenly arranged along the circumference of the combustion air distribution chamber. The ends of the combustion air distribution branch pipes are horizontally curved. The outlet direction of the combustion air distribution branch pipes is parallel to the circumferential direction of the inner wall of the combustion chamber, and the lower edge of the circumference of the combustion air distribution branch pipes is higher than the bottom plate of the combustion chamber.

[0026] The combustion chamber is equipped with a combustion air distribution branch pipe, a fuel branch pipe, a fuel distribution chamber, a working fuel pipe, and a working solenoid valve installed on the working fuel pipe, which are connected to the fuel inlet on the main body of the burner to form a burner working fuel supply system.

[0027] The combustion chamber is also equipped with a burner ignition fuel supply system that connects to the fuel inlet via a flame observation tube, an ignition tube, an ignition fuel tube, an ignition flow regulating valve installed on the ignition fuel tube, and an ignition solenoid valve.

[0028] The fuel branch pipes are placed on the fuel branch pipe support pipe within the combustion air distribution chamber. Multiple fuel branch pipes are evenly arranged along the circumference of the fuel distribution chamber, with the same number and arrangement direction as the combustion air distribution branch pipes. The height of the upper edge of the fuel branch pipe support pipe and the axial centerline of the fuel branch pipe is equal to or higher than the axial centerline of the combustion air distribution branch pipe. The fuel branch pipe support pipe, the fuel branch pipes, and the fuel distribution chamber are all located within the combustion air distribution chamber.

[0029] The combustion air distribution chamber is further equipped with uniformly arranged partitions along its circumference, with the upper edge of the partitions exceeding the upper edge of the combustion air distribution branch pipe. These partitions ensure the uniform distribution of combustion air and fuel flow to the combustion chamber.

[0030] The combustion chamber is equipped with a flame observation tube that communicates with the combustion chamber. The flame observation tube is equipped with a flame detection device mounting position and a flame sight glass, and is connected to the ignition tube. The flame observation tube is connected to the air box via a flame detection device heat dissipation pipe.

[0031] The ignition tube is equipped with a high-voltage ignition needle and an ignition sight glass, and is connected to the ignition fuel tube and the flame observation tube. The purpose of the ignition tube is to prevent the flame detection device from misreporting the electric spark generated by the high-voltage ignition needle as a flame signal when the burner is ignited.

[0032] The flame observation tube and the ignition tube have the same inclination angle, with the end closer to the combustion chamber being lower. The ignition needle on the ignition tube is positioned closer to the combustion chamber end, while the ignition fuel tube on the ignition tube is closer to the other end. The inclination angle of the flame observation tube and the ignition tube facilitates the flow of the fuel flame from the flame observation tube to the combustion chamber during burner ignition.

[0033] The inclusion of auxiliary devices such as jacket temperature detection device, wind pressure detection device, flame detection device, fuel pressure detection device, flow meter, and fuel overflow detection device further improves the safety and visibility of operating parameters during the use of the burner, facilitating burner maintenance and troubleshooting.

[0034] Working principle of this utility model: A combustion air blower draws in outside air and injects it into the air box. The air inside the air box dissipates heat from the combustion chamber shell through the jacket air inlet, jacket cooling chamber, and jacket air outlet pipe, and further provides combustion air for the flame ejected from the combustion chamber. Simultaneously, the air inside the air box is injected into the combustion chamber through two pathways: the combustion air distribution chamber, the combustion air distribution branch pipe, and the flame detection device's heat dissipation pipe and flame observation pipe, also dissipating heat from the flame detection device. A fuel pump draws in liquid alcohol fuel and supplies it to the fuel inlet of the burner body through pipes including a manual fuel main valve, fuel filter valve, fuel solenoid valve main valve, and flow meter.

[0035] When the burner ignites, the ignition solenoid valve opens first, followed by the working solenoid valve. Fuel enters the ignition tube through the ignition flow regulating valve, the ignition solenoid valve, and the ignition fuel pipe. After ignition is completed in the ignition tube, the fuel flame flows to the combustion chamber through the flame observation tube. In the combustion chamber, the ignition fuel flame merges with the fuel flowing to the combustion chamber through the working solenoid valve, the working fuel pipe, the fuel distribution chamber, the fuel branch pipe, and the combustion air distribution branch pipe. The fuel then further mixes and burns with the combustion air in the combustion chamber.

[0036] When the burner is working normally, the ignition solenoid valve is closed and the working solenoid valve is continuously open. The fuel flows through the working fuel pipe and is injected into the combustion air distribution branch pipe through the fuel branch pipe. Under the combined influence of the unique structure and arrangement of the combustion air distribution branch pipe and the fuel branch pipe, the fuel and combustion air are first preheated and mixed in the combustion air distribution branch pipe, and then flow into the combustion chamber and rotate along the circumference of the combustion chamber to further mix and participate in combustion. The incompletely gasified fuel will accelerate gasification and promote combustion after contacting the high-temperature components of the combustion chamber. When the combustion flame flows through the high-temperature flame outlet pipe, the fuel reaches complete gasification and mixes with the jacket air before being completely burned.

[0037] By properly adjusting the operating frequency of the fuel pump and combustion fan, the fuel flow rate and combustion air volume supplied to the burner can be controlled, thereby adjusting the burner's heat output power.

[0038] Compared with the prior art, the beneficial effects of this utility model are: An internal combustion alcohol fuel gasification burner features a unique combustion chamber and air box structure. This allows the liquid alcohol fuel to be converted into a gas within its own combustion chamber before being mixed with combustion air for complete combustion. The high-energy heat generated is then supplied to external heat-using equipment. Since the fuel flowing to the combustion chamber does not require high pressure, a corrosion-resistant impeller pump or diaphragm pump can be used. The fuel pipeline system operates at low pressure, has a simple structure, and is easy to maintain. Its combustion process is clean, efficient, and energy-saving, effectively solving the shortcomings of existing technologies that involve high fuel pressure, significant safety hazards, highly corrosive exhaust gases, excessive emissions, and cumbersome maintenance during the combustion of liquid alcohol fuel in an atomized state, which are detrimental to continuous production. Attached Figure Description

[0039] Figure 1 This utility model's combustion engine assembly is an isometric view. Figure 1 Figure 2 This utility model's combustion engine assembly is an isometric view. Figure 2 Figure 3 This is a front view of the burner assembly of this utility model. Figure 4 This is a top view of the combustion engine assembly of this utility model. Figure 5This is a rear view of the burner assembly of this utility model. Figure 6 The isometric design of the burner body of this utility model Figure 1 Figure 7 The isometric design of the burner body of this utility model Figure 2 Figure 8 This is a schematic diagram of the arrangement of the cyclone vanes in the burner jacket of this utility model. Figure 9 This is a front view of the main body of the burner of this utility model. Figure 10 This is a top view of the main body of the burner of this utility model. Figure 11 This is a cross-sectional view AA of the main body of the burner of this utility model. Figure 12 This is a partial enlarged view (BB) of the cross-sectional view of the main body of the burner of this utility model. Figure 13 This is a cross-sectional view of the main body of the burner of this utility model. (BB) Figure 14 This is a cross-sectional view of the main body of the burner of this utility model (CC). Figure 15 This is a cross-sectional view of the main body of the burner of this utility model. Figure 16 This is a cross-sectional view of the main body of the burner of this utility model. Figure 17 This is a cross-sectional view of the main body of the burner of this utility model. Figure 18 This is a cross-sectional view of the main body of the burner of this utility model. Figure 19 This is a schematic diagram of the working principle of the burner of this utility model. Figure 20 This is a schematic diagram of the internal structure of the combustion chamber of the burner of this utility model. In the diagram: 1. Combustion fan, 2. Combustion engine body, 3. Jacket temperature detection device, 4. High-pressure ignition needle, 5. Flame sight glass, 6. Ignition sight glass, 7. Air pressure detection device, 8. High-pressure igniter, 9. Flame detection device, 10. Fuel check valve, 11. Fuel pump, 12. Fuel pressure detection device, 13. Manual fuel main valve, 14. Fuel filter valve, 15. Fuel solenoid valve main valve, 16. Flow meter inlet pipe, 17. Flow meter, 18. Flow meter outlet pipe, 19. Ignition flow regulating valve, 20. Ignition solenoid valve, 21. Working solenoid valve, 22. Fuel overflow detection device, 200. Air pressure detection device mounting position, 201. Air box inlet pipe, 202. Air box, 203. Combustion air distribution chamber, 204. Combustion air distribution branch pipe, 205. Combustion chamber, 206. Flame outlet pipe, 207. Combustion air distribution chamber partition, 208. Fuel branch pipe support pipe, 209. Combustion chamber support leg, 210. Fuel overflow detection device mounting position, 211. Jacket cooling chamber, 212. Jacket air outlet pipe, 213. Jacket air cyclone vane, 214. Jacket cooling chamber partition, 215. Jacket air inlet, 220. Flame detection device heat dissipation pipe, 221. Flame observation pipe, 222. Flame detection device mounting position, 223. High-voltage igniter mounting plate, 230. Thermal insulation chamber, 250. Fuel inlet, 251. Ignition fuel pipe, 252. Working fuel pipe, 253. Fuel distribution chamber, 254. Fuel branch pipe, 260. Ignition tube, 261. Ignition needle mounting position, 270. Burner mounting flange, 280. Flow meter mounting bracket, 290. Jacket temperature detection device mounting position. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: An internal combustion alcohol fuel gasification burner mainly includes a fuel pump 11, a combustion fan 1, and a burner body 2.

[0041] The fuel pump 11 is equipped with a fuel check valve 10 at the inlet and a fuel pressure detection device 12, a manual fuel main valve 13, a fuel filter valve 14, a fuel solenoid valve main valve 15, a flow meter inlet pipe 16, a flow meter 17 installed on the flow meter mounting bracket 280 of the burner body 2, and a flow meter outlet pipe 18 connected to the fuel inlet 250 on the burner body 2.

[0042] The outlet of the combustion blower 1 is connected to the air box 202 via the air box inlet pipe 201. An air pressure detection device 7 is installed at the air box inlet pipe 201 at the air pressure detection device mounting position 200. A fuel overflow detection device 22 is installed at the fuel overflow detection device mounting position 210 near the bottom plate of the air box 202 below the air box inlet pipe 201.

[0043] The bellows 202 is connected to the jacket cooling chamber 211 via the jacket air inlet 215, and to the combustion chamber 205 via two pathways. Pathway 1: The bellows 202 is connected to the combustion chamber 205 via the combustion air distribution chamber 203 and the combustion air distribution branch pipe 204. Pathway 2: The bellows 202 is connected to the combustion chamber 205 via the flame detection device heat dissipation pipe 220 and the flame observation pipe 221. Regardless of the pathway, the air exiting the bellows 202 will ultimately participate in combustion.

[0044] Since the bellows 202 is connected to both the jacketed cooling chamber 211 and the combustion chamber 205 of the burner main body 2, the design of using a combustion air blower 1 to inject combustion air into the bellows 202 can prevent high-temperature gas in the combustion chamber 205 and high-temperature gas from the flame ejection duct 206 from flowing back into the bellows 202 through the aforementioned pathways. High-temperature air flowing back into the bellows 202 is detrimental to heat dissipation from the combustion chamber 205 shell and the flame detection device 9, and may even cause safety hazards such as high temperature of the burner shell or fire.

[0045] The burner body 2 is equipped with a jacket temperature detection device 3 installed at the jacket temperature detection device mounting position 290, a high-pressure ignition needle 4 installed at the ignition needle mounting position 261, a flame sight glass 5 installed on the flame observation tube 221, an ignition sight glass 6 installed on the ignition tube 260, a wind pressure detection device 7 installed at the wind pressure detection device mounting position 200, a high-pressure igniter 8 installed on the high-pressure igniter mounting plate 223, a flame detection device 9 installed at the flame detection device mounting position 222, a flow meter 17 installed on the flow meter mounting bracket 280, an ignition flow regulating valve 19 and an ignition solenoid valve 20 installed on the ignition fuel pipe 251, a working solenoid valve 21 installed on the working fuel pipe 252, and a fuel overflow detection device 22 installed at the fuel overflow detection device mounting position 210.

[0046] The jacket temperature detection device 3 is used to detect the jacket temperature. A low jacket temperature is not conducive to the vaporization of liquid fuel in the combustion chamber 205, while a high jacket temperature is conducive to the vaporization of liquid fuel in the combustion chamber 205. However, an excessively high jacket temperature will shorten the service life of the combustion chamber 205.

[0047] When the high-voltage igniter 8 is working, an electric arc is generated between the high-voltage ignition needle 4 and the ignition tube 260, which ignites the fuel flowing from the ignition fuel tube 251 below the high-voltage ignition needle 4 in the ignition tube 260. The fuel and flame enter the combustion chamber 205 through the flame observation tube 221 with an inclined angle, igniting the fuel flowing into the combustion chamber 205 from the working fuel tube 252, thus completing the ignition of the combustion chamber 205.

[0048] The flame sight glass 5 is used to observe the combustion flame inside the combustion chamber 205; the ignition sight glass 6 is used to observe the ignition status of the high-pressure ignition needle 4 in the ignition tube 260, the ignition fuel flow rate, and the ignition flame condition when the burner is ignited.

[0049] The air pressure detection device 200 is mainly used to detect the air pressure of the combustion fan 1 and the air box 202, and can be used to determine the working status of the combustion fan 1 and the burner.

[0050] The flame detection device 9 is mainly used to detect whether a flame has been established in the combustion chamber 205.

[0051] Flow meter 17 is mainly used to detect the fuel flow rate during burner ignition and operation.

[0052] The fuel overflow detection device 22 can detect abnormal situations where fuel that has not been fully vaporized in the combustion chamber 205 overflows into the air box 202 through the air intake system of the combustion chamber 205 when the fuel level is too high.

[0053] The main fuel solenoid valve 15 controls the fuel supply between the fuel pump 11 and the burner body 2. The main fuel solenoid valve 15 must remain open regardless of whether the burner is in ignition or normal operation. The ignition solenoid valve 20 controls the fuel supply between the flow meter 17 and the ignition tube 260. The ignition solenoid valve 20 must remain open when the burner is in ignition. The ignition flow regulating valve 19 adjusts the fuel flow rate used for ignition during burner ignition. The working solenoid valve 21 controls the fuel supply between the flow meter 17 and the combustion chamber 205. When the burner is in ignition, the working solenoid valve 21 opens a few seconds after the ignition solenoid valve 20 opens. When the burner is in normal operation, the working solenoid valve 21 remains open.

[0054] The upper part of the burner body 2 has three layers from the outside to the inside: a heat insulation chamber 230, a jacketed cooling chamber 211, and a combustion chamber 205. The lower part of the burner body 2 consists of a wind box 202 and a wind box inlet pipe 201.

[0055] The heat insulation chamber 230 is completely isolated from the jacket cooling chamber 211 and the combustion chamber 205. The heat insulation chamber 230 is filled with heat insulation material to prevent the upper part of the burner body 2 from getting too hot, and also to reduce unnecessary temperature loss in the jacket cooling chamber 211, so as to ensure that the temperature of the combustion chamber 205 is conducive to fuel gasification.

[0056] The jacketed cooling chamber 211 is connected to the combustion chamber 205 via a bellows 202. The jacketed cooling chamber 211 contains jacketed air inlets 215, which are evenly arranged along its circumference and connected to the bellows 202; jacketed air outlet pipes 212, which communicate with the outside; and a jacketed temperature detection device 3 installed at a jacketed temperature detection device mounting position 290, which communicates with the outside via the outer shell of the jacketed cooling chamber 211 and the outer shell of the thermal insulation chamber 230. To prevent short-circuiting of the jacketed air within the jacketed cooling chamber 211, which would hinder uniform heat dissipation from the outer shell of the combustion chamber 205, a jacketed cooling chamber partition 207 is installed within the jacketed cooling chamber 211, arranged perpendicular to the bottom of the jacketed chamber along the circumference of the outer shell of the combustion chamber 205. Multiple jacketed air cyclone vanes 213 are evenly arranged along the circumference of the jacketed air outlet pipe 212 on the inner side of the outer port of the space between the jacketed air outlet pipe 212 and the flame outlet pipe 206.

[0057] Multiple jacketed cyclone vanes 213 are evenly arranged along the circumference of the jacketed air outlet pipe 212. The structure of the jacketed cyclone vanes 213 further promotes the equalization of air pressure in the jacketed cooling chamber 211 and further provides combustion-supporting air for the flame ejected from the flame outlet pipe 206.

[0058] The combustion chamber 205 is arranged in the jacketed cooling chamber 211 above the air box 202 via the combustion chamber support leg 209.

[0059] The combustion chamber 205 is equipped with a combustion air supply system that connects to the air box 202 via combustion air distribution branch pipes 204, combustion air distribution chamber 203, and combustion air distribution pipes 204. Multiple combustion air distribution branch pipes 204 are evenly arranged along the circumference of the combustion air distribution chamber 203. The ends of the combustion air distribution branch pipes 204 are horizontally curved. The outlet direction of the combustion air distribution branch pipes 204 is parallel to the circumferential direction of the inner wall of the combustion chamber 205. The lower edge of the circumference of the combustion air distribution branch pipes 204 is higher than the bottom plate of the combustion chamber.

[0060] The combustion chamber 205 is equipped with a burner working fuel supply system that connects to the fuel inlet 250 via a combustion air distribution branch pipe 204, a fuel branch pipe 254, a fuel distribution chamber 253, a working fuel pipe 252, and a working solenoid valve 21 installed on the working fuel pipe 252. Multiple fuel branch pipes 254 are evenly arranged along the circumference of the fuel distribution chamber 253, placed on a fuel branch pipe support pipe 208. Their number and arrangement direction are the same as those of the combustion air distribution branch pipes 204. The axial centerline height of the fuel branch pipes 254 is equal to or higher than the axial centerline of the combustion air distribution branch pipes 204. The fuel branch pipe support pipe 208, fuel branch pipes 254, and fuel distribution chamber 253 are all located within the combustion air distribution chamber 203.

[0061] Combustion chamber 205 is also equipped with a burner ignition fuel supply system that is connected to fuel inlet 250 via flame observation tube 221, ignition tube 260, ignition fuel tube 251, ignition flow regulating valve 19 and ignition solenoid valve 20 installed on ignition fuel tube 251.

[0062] Within the combustion air distribution chamber 203, evenly distributed along its circumference are combustion air distribution chamber partitions 207, the upper edge of which exceeds the upper edge of the circumference of the combustion air distribution branch pipe 204. The combustion air distribution chamber partitions 207 are used to ensure the even distribution of combustion air flow and fuel flow to the combustion chamber 205.

[0063] Combustion chamber 205 is equipped with a flame observation tube 221 that communicates with combustion chamber 205. The flame observation tube 221 is equipped with a flame detection device mounting position 222 and a flame sight glass 5, and is connected to ignition tube 260. The flame observation tube 221 is connected to bellows 202 via flame detection device heat dissipation tube 220.

[0064] The ignition tube 260 is equipped with a high-voltage ignition needle 4 and an ignition sight glass 6 installed on the ignition needle mounting position 261. The ignition tube 260 is connected to the ignition fuel tube 251 and the flame observation tube 221.

[0065] The flame observation tube 221 and the ignition tube 260 have the same tilt angle, with the end closer to the combustion chamber 205 being lower. The ignition needle mounting position 261 on the ignition tube 260 is located closer to the combustion chamber 205, while the ignition fuel tube 251 on the ignition tube 260 is closer to the other end. The tilt angle of the flame observation tube 221 and the ignition tube 260 facilitates the flow of fuel flame to the combustion chamber 205 during burner ignition.

[0066] The inclusion of auxiliary devices such as jacket temperature detection device 3, wind pressure detection device 7, flame detection device 9, fuel pressure detection device 12, flow meter 17, and fuel overflow detection device 22 improves the safety of the burner during use and the visibility of operating parameters, facilitating maintenance and troubleshooting.

[0067] The above description only describes the preferred embodiments of the present utility model. However, the present utility model is not limited to the above embodiments. Any modifications, equivalent substitutions, improvements, etc., made within the scope of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An internal combustion type alcohol fuel gasification burner, characterized in that: The combustion engine includes a fuel pump (11), a combustion fan (1), and a burner body (2). The fuel pump (11) is equipped with a fuel check valve (10) at its inlet. The fuel pump (11) is equipped with a fuel pressure detection device (12), a manual fuel main valve (13), a fuel filter valve (14), a fuel solenoid valve main valve (15), a flow meter inlet pipe (16), a flow meter (17) mounted on a flow meter mounting bracket (280) on the burner body (2), and a flow meter outlet pipe (18) connected to the fuel inlet (250) on the burner body (2). The combustion fan (1) has its outlet connected to the air box inlet. The pipe (201) is connected to the air box (202). An air pressure detection device (7) is installed at the air box inlet pipe (201) at the air pressure detection device mounting position (200), and a fuel overflow detection device (22) is installed at the fuel overflow detection device mounting position (210) near the bottom plate of the air box (202) below the air box inlet pipe (201). The upper half of the burner body (2) has three layers from the outside to the inside: a heat insulation chamber (230), a jacketed cooling chamber (211), and a combustion chamber (205). The lower half of the burner body (2) consists of the air box (202) and the air box inlet pipe (201).

2. The internal combustion type alcohol fuel gasification burner according to claim 1, characterized in that: The heat insulation chamber (230) is completely isolated from the jacketed cooling chamber (211) and the combustion chamber (205), and the interior of the heat insulation chamber (230) is filled with heat insulation material.

3. The internal combustion type alcohol fuel gasification burner according to claim 1, characterized in that: The jacketed cooling chamber (211) and the combustion chamber (205) are connected to the air box (202) through the jacketed air inlet (215). The jacketed cooling chamber (211) is provided with jacketed air inlets (215) that are evenly arranged along the circumference of the jacketed cooling chamber (211) and connected to the air box (202), jacketed air outlet pipes (212) that communicate with the outside, and jacketed temperature insulation chamber (230) that are installed in the jacketed cooling chamber (211) shell and the outer shell of the heat insulation chamber (230) that communicate with the outside. The jacket temperature detection device (3) is installed at the detection device installation position (290). The jacket cooling chamber (211) is also provided with a jacket cooling chamber partition (207) arranged perpendicular to the bottom of the jacket cooling chamber (211) along the circumferential direction of the outer shell of the combustion chamber (205). Multiple jacket air cyclone blades (213) are evenly arranged along the circumferential direction of the jacket air outlet pipe (212) on the inner side of the outer port of the space between the jacket air outlet pipe (212) and the flame outlet pipe (206).

4. The internal combustion type alcohol fuel gasification burner according to claim 1, characterized in that: The combustion chamber (205) is equipped with a combustion air supply system that is connected to the air box (202) via a combustion air distribution branch pipe (204), a combustion air distribution chamber (203), and a combustion air distribution box (202); a burner ignition fuel supply system that is connected to the fuel inlet (250) via a flame observation pipe (221), an ignition pipe (260), an ignition fuel pipe (251), an ignition flow regulating valve (19) installed on the ignition fuel pipe (251), and an ignition solenoid valve (20); and a burner working fuel supply system that is connected to the fuel inlet (250) via a combustion air distribution branch pipe (204), a fuel branch pipe (254), a fuel distribution chamber (253), a working fuel pipe (252), and a working solenoid valve (21) installed on the working fuel pipe (252).

5. The internal combustion type alcohol fuel gasification burner according to claim 4, characterized in that: Multiple combustion air distribution branches (204) are evenly arranged along the circumference of the combustion air distribution chamber (203). The end of the combustion air distribution branch (204) is horizontally curved. The outlet direction of the combustion air distribution branch (204) is parallel to the circumference of the inner wall of the combustion chamber (205). The lower edge of the circumference of the combustion air distribution branch (204) is higher than the bottom plate of the combustion chamber (205).

6. The internal combustion type alcohol fuel gasification burner according to claim 4, characterized in that: The fuel branch pipe (254) is placed on the fuel branch pipe support pipe (208) and multiple branches are evenly arranged along the circumference of the fuel distribution chamber (253). The number and arrangement direction are the same as those of the combustion air distribution branch pipe (204). The axial center line height of the fuel branch pipe (254) is equal to or higher than the axial center line of the combustion air distribution branch pipe (204). The fuel branch pipe support pipe (208), the fuel branch pipe (254), and the fuel distribution chamber (253) are all placed inside the combustion air distribution chamber (203).

7. The internal combustion type alcohol fuel gasification burner according to claim 4, characterized in that: The combustion air distribution chamber (203) is also uniformly arranged with combustion air distribution chamber partitions (207) along the circumference of the combustion air distribution chamber (203). The upper edge of the combustion air distribution chamber partitions (207) is higher than the upper edge of the circumference of the combustion air distribution branch pipe (204).

8. The internal combustion type alcohol fuel gasification burner according to claim 1, characterized in that: The air box (202) is connected to the jacket cooling chamber (211) through the jacket air inlet (215), and to the combustion chamber (205) through the combustion air distribution chamber (203) and the combustion air distribution branch pipe (204). It is also connected to the combustion chamber (205) through the flame detection device heat dissipation pipe (220) and the flame observation pipe (221).

9. The internal combustion type alcohol fuel gasification burner according to claim 1, characterized in that: The burner body (2) is provided with a jacket temperature detection device (3) installed at the jacket temperature detection device mounting position (290), a high-pressure ignition needle (4) installed at the ignition needle mounting position (261), a flame sight glass (5) installed on the flame observation tube (221), an ignition sight glass (6) installed on the ignition tube (260), a wind pressure detection device (7) installed at the wind pressure detection device mounting position (200), a high-pressure igniter (8) installed on the high-pressure igniter mounting plate (223), a flame detection device (9) installed at the flame detection device mounting position (222), a flow meter (17) installed on the flow meter mounting bracket (280), an ignition flow regulating valve (19) and an ignition solenoid valve (20) installed on the ignition fuel pipe (251), a working solenoid valve (21) installed on the working fuel pipe (252), and a fuel overflow detection device (22) installed at the fuel overflow detection device mounting position (210).

10. The internal combustion type alcohol fuel gasification burner according to claim 9, characterized in that: The flame observation tube (221) and the ignition tube (260) have the same tilt angle, with the end closer to the combustion chamber (205) being lower. The ignition needle mounting position (261) on the ignition tube (260) is located closer to the end of the combustion chamber (205), and the ignition fuel tube (251) on the ignition tube (260) is closer to the other end.

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