Liquid fuel vaporization combustion device and control system thereof

Abstract

The liquid fuel vaporization combustion device and the control system thereof comprise a combustion device composed of a main combustion chamber, an auxiliary combustion chamber and an oxygen supply chamber, a three-way pipe, an air-oil passage, a preheating device, an oil supply system and an air supply system. The oil-gas passage is tightly attached to the outer wall of the main combustion chamber from top to bottom, the oil supply system inputs liquid fuel into the oil-gas passage, the air supply system provides oxygen-containing air for the oil-gas passage and the oxygen supply chamber through the three-way air pipe, and the preheating device is tightly attached to the air-oil passage and heats and vaporizes the liquid fuel. Under the action of the air supply system, the mixed gas is pre-mixed with oxygen-containing air to generate uniform mixed gas, and the mixed gas is input into the auxiliary combustion chamber to be ignited and then is fully combusted in the main combustion chamber; after the combustion device is ignited, the preheating device is closed, and the oil gas passage is heated by waste heat generated by the combustion device. The combustion device is wide in application, safe, stable, low in noise, resource-saving, convenient to maintain, long in service life and suitable for the field of liquid fuel combustion.

Description

Technical Field

[0001] The present application relates to the field of liquid fuel combustion, and in particular to a liquid fuel vaporization combustion device and a control system thereof. Background Art

[0002] The usual liquid combustion system is a pressure atomization combustion, which results in incomplete combustion or slow internal combustion, which wastes heat energy and reduces the life of the equipment due to high combustion chamber temperature. In order to meet the needs of saving energy and increasing the life of equipment, some electric vaporization combustion structures have gradually appeared on the market, which have serious carbon deposits, high noise, poor stability, and low thermal utilization. For example, the Chinese utility model patent with publication number CN218064865U discloses a combustion device and a combustion system, which realizes the vaporization of liquid fuel by setting a vaporization chamber and a heating element in the vaporization chamber. However, since the heating element heats the vaporized fuel in the pipeline, when the combustion stops, there is residual heat and residual oil, and carbon deposits will form in the pipeline after long-term use. Or the equipment is severely single in oil products, and it cannot be used after changing the oil products.

[0003] Therefore, it is necessary to improve the prior art. Summary of the invention

[0004] In order to solve one of the above-mentioned technical defects, a liquid fuel vaporization combustion device and a control system are provided in an embodiment of the present application.

[0005] According to a first aspect of an embodiment of the present application, a liquid fuel vaporization combustion device is provided, comprising:

[0006] The main combustion chamber has a flame output port at the top;

[0007] The auxiliary combustion chamber is arranged at the bottom of the main combustion chamber, and the top of the auxiliary combustion chamber is open;

[0008] The oxygen supply chamber is connected to the bottom of the main combustion chamber, and a plurality of oxygen supply holes are provided on the top of the oxygen supply chamber, and the oxygen supply holes are connected to the main combustion chamber;

[0009] A three-way ventilation duct is arranged outside the main combustion chamber, an air inlet is provided at the bottom of the three-way ventilation duct, a first air outlet is provided at the top of the main combustion chamber on the three-way ventilation duct, a second air outlet is provided at the oxygen supply chamber on the three-way ventilation duct, and the second air outlet is connected to the oxygen supply chamber;

[0010] The wind oil walkway is arranged from top to bottom close to the outer wall of the main combustion chamber, the input end at the top of the wind oil walkway is connected to the first air outlet, and the output end at the bottom of the wind oil walkway is connected to the auxiliary combustion chamber;

[0011] The preheating device is installed close to the outer wall of the wind oil walkway;

[0012] The oil supply system, the oil supply pipeline is arranged in the three-way ventilation duct, and the output end of the oil supply pipeline is arranged at the input end of the wind and oil walkway;

[0013] an air supply system, the output end of which is connected to the air inlet;

[0014] An ignition device is arranged in the auxiliary combustion chamber;

[0015] Furthermore, the air oil walkway is a continuous spiral tube, the spiral tube is wound around the outer wall of the main combustion chamber, and the inner wall of the spiral tube is tightly arranged to the outer wall of the main combustion chamber.

[0016] Furthermore, the wind and oil walkway includes a plurality of horizontally arranged annular tubes, which are arranged at intervals from top to bottom along the outer wall of the main combustion chamber, and the inner wall of each annular tube is tightly arranged against the outer wall of the main combustion chamber. Adjacent two annular tubes are connected, and the input end of the wind and oil walkway is provided on the annular tube at the top end, and the output end of the wind and oil walkway is provided on the annular tube at the lowest end.

[0017] Furthermore, the preheating device is a continuous spiral preheating strip, the spiral preheating strip corresponds to the spiral tube, and the spiral preheating strip is arranged close to the bottom of the spiral tube.

[0018] Furthermore, the preheating device includes a plurality of annular preheating strips, and a corresponding annular preheating strip is closely attached to the bottom of each annular tube, and the plurality of annular preheating strips work synchronously.

[0019] Furthermore, the oil supply system includes: an oil tank and an oil supply pump, the output end of the oil supply pump is connected to the oil supply pipeline, and a flow valve is arranged on the oil supply pipeline.

[0020] Furthermore, the air supply system includes: a combustion-supporting fan, and the output end of the combustion-supporting fan is connected to the air inlet.

[0021] Furthermore, the liquid fuel vaporization combustion device also includes a fire focusing ring, which is arranged at the flame output port.

[0022] Furthermore, the liquid fuel vaporization combustion device also includes a heat-insulating shell, which is coated on the outside of the air-oil walkway and is made of a heat-resistant material.

[0023] According to a second aspect of an embodiment of the present application, a liquid fuel vaporization combustion device control system is provided, comprising:

[0024] Temperature sensor, installed in the wind oil walkway;

[0025] The controller is electrically connected to the temperature sensor and the preheating device.

[0026] The liquid fuel vaporization combustion device and its control system provided in the embodiment of the present application are adopted, and an air-oil walkway is creatively set on the outer wall of the combustion device. The air-oil walkway is preheated to vaporize the liquid fuel therein, and under the action of the air supply system, the gas fuel and oxygen-containing air are premixed before ignition to generate a uniform mixed gas, thereby realizing premixed combustion and improving combustion efficiency and energy utilization rate; on the other hand, when the combustion device works continuously and stably, the preheating device stops working, and the waste heat generated by the main combustion chamber is used to complete the vaporization of the liquid fuel, saving the energy consumption of the preheating device; at the same time, the waste heat generated by the main combustion chamber is absorbed, thereby reducing the peripheral temperature of the entire combustion device and increasing the service life of the equipment; when the liquid fuel enters the air-oil walkway, the air-oil walkway and the combustion chamber are mixed and transmitted by the combustion-supporting fan, so that the air-oil walkway can be cleaned, which greatly reduces the possibility of carbon deposits in the air-oil pipeline, and the maintenance rate and maintenance cost are greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0028] Figure 1 A three-dimensional diagram of a liquid fuel vaporization combustion device provided in an embodiment of the present application;

[0029] Figure 2 A top view of a liquid fuel vaporization combustion device provided in an embodiment of the present application;

[0030] Figure 3 A cross-sectional view of a liquid fuel vaporization combustion device provided in an embodiment of the present application;

[0031] Figure 4 A schematic diagram of the structure of the spiral tube and the spiral preheating strip provided in the embodiment of the present application;

[0032] Figure 5 A schematic diagram of the structure of the annular tube and the annular preheating strip provided in the embodiment of the present application;

[0033] Among them, 10 is the main combustion chamber, 20 is the auxiliary combustion chamber, 30 is the oxygen supply chamber, 301 is the oxygen supply hole, 302 is the partition, 40 is the three-way ventilation duct, 401 is the air inlet, 402 is the first air outlet, 403 is the second air outlet, 404 is the oil supply pipeline, 50 is the air-oil walkway, 501 is the spiral tube, 502 is the annular tube, 60 is the preheating device, 601 is the spiral preheating strip, 602 is the annular preheating strip, 70 is the ignition device, 80 is the fire gathering ring, and 90 is the heat-resistant shell. DETAILED DESCRIPTION

[0034] In order to make the technical solutions and advantages of the embodiments of the present application more clear, the following Figure 1-5 The exemplary embodiments of the present application are further described in detail. Obviously, the described embodiments are only part of the embodiments of the present application, rather than an exhaustive list of all the embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0035] In the process of realizing the present application, the inventors found that the conventional liquid combustion system is a pressure atomization combustion, which is incomplete combustion, or the internal combustion is slow and wastes heat energy, and the temperature of the combustion chamber is high and the equipment life is reduced. In order to meet the needs of saving energy and increasing the life of equipment, some electric vaporization combustion structures have gradually appeared on the market, which have serious carbon deposits, high noise, poor stability, and low thermal utilization. For example, the Chinese utility model patent with publication number CN218064865U discloses a combustion device and a combustion system, which realizes the vaporization of liquid fuel by setting a vaporization chamber and a heating element in the vaporization chamber. However, since the heating element heats the vaporized fuel in the pipeline, when the combustion stops, there is residual heat and residual oil, and carbon deposits will be generated in the pipeline after long-term use. Or the equipment is severely single in oil products, and it cannot be used after changing the oil products.

[0036] In view of the above problems, a liquid fuel vaporization combustion device is provided in the embodiment of the present application, such as Figure 1-5 As shown, including:

[0037] The main combustion chamber 10 is where the fuel is fully burned and has a flame output port at the top for outputting a continuous and stable flame;

[0038] The auxiliary combustion chamber 20, where the fuel is ignited and preliminarily burned, is arranged at the bottom of the main combustion chamber 10. The specific position of the auxiliary combustion chamber 20 at the bottom of the main combustion chamber 10 can be adjusted accordingly according to different implementation conditions or installation environments, and is not limited to being installed at Figure 2 In the position shown in , the top of the auxiliary combustion chamber 20 is open;

[0039] The oxygen supply chamber 30 is responsible for supplying oxygen to the main combustion chamber 10. The oxygen supply chamber 30 is connected to the bottom of the main combustion chamber 10. A plurality of oxygen supply holes 301 are provided on the top of the oxygen supply chamber 30. The oxygen supply holes 301 are connected to the main combustion chamber 10.

[0040] The three-way ventilation duct 40 is mainly used for oxygen transportation and is vertically arranged outside the main combustion chamber 10. An air inlet 401 is provided at the bottom of the three-way ventilation duct 40, a first air outlet 402 is provided at the top of the main combustion chamber 10 on the three-way ventilation duct 40, and a second air outlet 403 is provided at the oxygen supply chamber 30 on the three-way ventilation duct 40, and the second air outlet 403 is connected to the oxygen supply chamber 30;

[0041] The wind-oil walkway 50, in which the liquid fuel is heated and vaporized, and is mixed with oxygen before being input into the auxiliary combustion chamber 20, the inner wall of the wind-oil walkway 50 is in close contact with the outer wall of the main combustion chamber 10, and the wind-oil walkway 50 is arranged from top to bottom along the outer wall of the main combustion chamber 10, the input end at the top of the wind-oil walkway 50 is connected to the first air outlet 402, and the output end at the bottom of the wind-oil walkway 50 is connected to the auxiliary combustion chamber 20;

[0042] The preheating device 60 is used to heat the wind oil walkway 50 during the initial operation of the device, thereby vaporizing the liquid fuel. The preheating device 60 is arranged close to the outer wall of the wind oil walkway 50;

[0043] The oil supply system, wherein the oil supply pipeline 404 is arranged in the three-air duct 40, and the output end of the oil supply pipeline 404 is arranged at the input end of the wind-oil walkway 50, so as to input liquid fuel into the wind-oil walkway 50;

[0044] The air supply system, whose output end is connected to the air inlet 401, provides oxygen to the oxygen supply chamber 30 and the wind oil walkway 50 through three ventilation pipes 40;

[0045] The ignition device 70 is disposed in the auxiliary combustion chamber 20 and is used to ignite the auxiliary combustion chamber 20 during the initial operation of the device. The specific position of the ignition device 70 in the auxiliary combustion chamber 20 can be adjusted accordingly according to different implementation conditions or installation environments, and is not limited to being installed in Figure 2 The location shown in .

[0046] Specifically, the main combustion chamber 10, the auxiliary combustion chamber 20, the oxygen supply chamber 30 and the ignition device 70 together constitute a complete combustion device. Figure 3 As shown, the main combustion chamber 10, the auxiliary combustion chamber 20, the oxygen supply chamber 30 and the ignition device 70 are integrated into a whole to ensure the structural strength of the combustion device; the main combustion chamber 10, the auxiliary combustion chamber 20, the oxygen supply chamber 30 and the ignition device 70 can also be designed separately and then spliced / connected to each other to facilitate the disassembly of the combustion device, the individual replacement of components and daily cleaning and maintenance.

[0047] Specifically, Figure 3 As shown, the top surface of the oxygen supply chamber 30 can share the same partition 302 with the bottom surface of the main combustion chamber 10, and the auxiliary combustion chamber 20 is placed on the partition 302, excluding the area occupied by the auxiliary combustion chamber 20 on the partition 302, and a plurality of oxygen supply holes 301 are opened through the partition 302, and the plurality of oxygen supply holes 301 are evenly distributed.

[0048] More specifically, the auxiliary combustion chamber 20 is preferably disposed at the center of the bottom of the main combustion chamber 10, directly below the flame output port.

[0049] During specific implementation, the liquid fuel, under the action of the oil supply system, passes through the oil supply pipeline 404 arranged in the three-air ventilation duct 40, and enters the input end of the wind-oil walkway 50 from the first air outlet 402. At the same time, under the action of the air supply system, the oxygen-containing air passes through the inside of the three-air ventilation duct 40, and enters the input end of the wind-oil walkway 50 from the first air outlet 402. The oxygen-containing air entrains the liquid fuel and flows along the wind-oil walkway 50 to the output end at the bottom thereof. When the oxygen-containing air and the liquid fuel pass through the wind-oil walkway 50, the preheating device 60 is started to heat the wind-oil walkway 50, vaporize the liquid fuel therein, and preheat the main combustion chamber 10 close to the wind-oil walkway 50 by heat transfer, so that the gas combustion Under the action of the air supply system, the material and the oxygen-containing air are pre-mixed into a uniform mixed gas in the air-oil walkway 50 and transported to the auxiliary combustion chamber 20; the ignition device 70 is started to ignite the mixed gas in the auxiliary combustion chamber 20, and the generated flame is passed from the top of the auxiliary combustion chamber 20 into the main combustion chamber 10. At the same time, the air supply system sends the oxygen-containing air into the oxygen supply chamber 30 from the second air outlet 403, and the oxygen-containing air enters the main combustion chamber 10 from the oxygen supply hole 301, igniting the flame generated by the mixed gas, the mixed gas continuously transported to the auxiliary combustion chamber 20, and the oxygen-containing air contacts, and is fully burned in the main combustion chamber 10, and a continuous and stable flame is output at the flame output port; at this point, the combustion device completes the initial startup.

[0050] On the other hand, when the combustion device is working continuously and stably, the heat generated by the full combustion of the main combustion chamber 10 heats the outer wall of the main combustion chamber 10, and the heat is transferred to the wind and oil walkway 50 which is closely attached to the outer wall of the main combustion chamber 10. When the heat transferred to the wind and oil walkway 50 is sufficient to support the vaporization of the liquid fuel, there is no need for the preheating device 60 to generate additional heat to heat the wind and oil walkway 50. At this time, the preheating device 60 is stopped, and the heat generated by the combustion of the main combustion chamber 10 is used to heat the inner wall of the wind and oil walkway 50, so as to realize the continuous non-electrically assisted vaporization of the fuel.

[0051] The present embodiment provides a liquid fuel vaporization combustion device, which creatively sets an air-oil passage on the outer wall of the combustion device, and inputs liquid fuel and oxygen-containing air into it. During the initial startup, the preheating device is used to heat the liquid fuel to complete vaporization, and the fuel and the main combustion chamber are preheated at the same time, which can effectively improve the combustion efficiency. The gas fuel and air are premixed in the air-oil passage to generate a uniform mixed gas, which is transported to the auxiliary combustion chamber for ignition and premixed combustion. Compared with the traditional combustion method, the premixed combustion has a fast combustion reaction, high temperature, and fast flame propagation speed, and can provide concentrated heat and chemically active particles. Then, sufficient oxygen-containing air is provided to the main combustion chamber through the oxygen supply chamber, so that the mixed gas is fully burned. Through the continuous input of the air supply system and the oil supply system, The combustion device is continuously provided with a mixed gas and sufficient oxygen-containing air, and a continuous and stable flame is output at the flame output port. On the other hand, when the combustion device is working continuously and stably, the preheating device stops working, and the waste heat generated by the main combustion chamber is used to complete the vaporization of the liquid fuel, saving the energy consumption of the preheating device and reducing the dependence on the preheating device. At the same time, the waste heat generated by the main combustion chamber is absorbed, which reduces the peripheral temperature of the entire combustion device, ensures that the surrounding facilities are not damaged by high temperature, and increases the service life of the equipment. The preheating device is creatively arranged outside the wind and oil pipeline. At the same time, since the liquid fuel is heated and vaporized, there is no need to use an atomizing nozzle for atomization, which reduces the problem of nozzle blockage, greatly reduces the possibility of carbon deposits in the wind and oil pipeline, and greatly reduces the maintenance rate and maintenance cost.

[0052] As a preferred solution of the wind oil walkway 50, Figure 4 As shown, the air oil passage 50 can be a continuous spiral tube 501, which is wound around the outer wall of the main combustion chamber 10, and the inner wall of the spiral tube 501 is tightly arranged against the outer wall of the main combustion chamber 10.

[0053] As a supplement to the above preferred solution, Figure 4 As shown, the preheating device 60 is a continuous spiral preheating strip 601 , which corresponds to the spiral tube 501 , and is arranged close to the bottom of the spiral tube 501 .

[0054] In specific implementation, the spiral tube 501 and the spiral preheating strip 601 can be integrally arranged by casting; or they can be arranged separately, first installing the spiral tube 501, and then embedding the spiral preheating strip 601 in the gap of the spiral tube 501. The use of the spiral tube and the spiral preheating strip, due to their unique spiral structure, can not only increase the heating area, but also effectively recover the waste heat generated by the main combustion chamber. The unique spiral structure makes each section of the spiral tube have a downward inclined surface. Using gravity and the thrust generated by the air supply system, the liquid fuel can slide smoothly downward under the action of the inclined surface. At the same time, the air supply system can clean the inside of the spiral tube to avoid residue, further reducing the possibility of carbon deposits in the air-oil pipeline.

[0055] As another preferred solution of the wind oil walkway 50, Figure 5 As shown, the wind and oil walkway 50 includes a plurality of horizontally arranged annular tubes 502, and the plurality of annular tubes 502 are arranged at intervals from top to bottom along the outer wall of the main combustion chamber 10, and the inner wall of each annular tube 502 is tightly arranged against the outer wall of the main combustion chamber 10, and two adjacent annular tubes 502 are connected, and the input end of the wind and oil walkway 50 is provided on the annular tube 502 at the top, and the output end of the wind and oil walkway 50 is provided on the annular tube 502 at the lowest end.

[0056] As a supplement to the above preferred solution, Figure 5 As shown, the preheating device includes a plurality of annular preheating strips 602. The bottom of each annular tube 502 is correspondingly closely attached to an annular preheating strip 602, and the plurality of annular preheating strips 602 work synchronously.

[0057] During specific implementation, the two types of air-oil walkways 50 and the corresponding preheating devices 60 can be selected according to different implementation conditions or installation environments, thereby greatly improving the versatility of the combustion device.

[0058] As a preferred solution, the oil supply system includes: an oil tank and an oil supply pump, the output end of the oil supply pump is connected to the oil supply pipeline 404, and a flow valve is provided on the oil supply pipeline 404.

[0059] During specific implementation, the oil supply pump pumps the liquid fuel in the oil tank to the input end of the air-oil corridor through the oil supply pipeline 404, and cooperates with the flow valve to provide continuous and stable liquid fuel for the combustion device.

[0060] As a preferred solution, the air supply system includes: a combustion-supporting fan, and the output end of the combustion-supporting fan is connected to the air inlet.

[0061] During specific implementation, the input end of the combustion-supporting fan draws oxygen-containing air from the outside, and the output end of the combustion-supporting fan transports the oxygen-containing air from the outside to the three-way ventilation duct, and the three-way ventilation duct leads to the input end of the wind and oil walkway and the input end of the oxygen supply chamber respectively. On the one hand, the air supply system is responsible for providing continuous and stable oxygen-containing air to the combustion device to ensure sufficient combustion of the combustion device; on the other hand, it is responsible for providing pushing force to the liquid fuel or gas fuel (mixed gas) in the wind and oil walkway so that it can be premixed and then sent into the auxiliary combustion chamber.

[0062] As a preferred solution, the liquid fuel vaporization combustion device provided in this embodiment further includes a fire focusing ring 80, which is arranged at the flame output port. The fire focusing ring can change the fire type and color, and the fire surface and noise during combustion can be adjusted at will. The fire focusing ring can concentrate the heat of the fuel at the center, thereby further improving the combustion efficiency, reducing smoke emissions, and saving energy.

[0063] As a preferred solution, the liquid fuel vaporization combustion device provided in this embodiment also includes a heat-insulating shell 90, which is coated on the outside of the wind and oil walkway 50 and is made of heat-resistant material. The heat-insulating shell can provide a certain degree of protection for the combustion device body therein, taking into account both aesthetics and practicality, and can limit the waste heat generated by the combustion device to the vicinity of the wind and oil walkway, thereby promoting the wind and oil walkway to absorb the waste heat of the main combustion chamber, further reducing the peripheral temperature of the combustion device, and increasing the service life of the device.

[0064] The present application also provides a control system for a liquid fuel vaporization combustion device, including:

[0065] A temperature sensor is arranged in the wind oil passage 50;

[0066] The controller is electrically connected to the temperature sensor and the preheating device. The controller is used to receive temperature information transmitted from the temperature sensor. After judging and processing the temperature information, the controller transmits a signal to the preheating device to regulate the preheating device.

[0067] During specific implementation, when the combustion device is in the initial startup stage, the temperature sensor is used to detect the real-time temperature in the air-oil walkway 50, and transmits the detected data to the controller. The controller transmits a startup signal to the preheating device 60 to heat the air-oil walkway 50. The controller judges the data transmitted by the temperature sensor. If the temperature does not reach the temperature required for vaporization of the liquid fuel, the output power of the preheating device 60 is increased until the vaporization conditions are met. When it is detected that the temperature of the air-oil walkway 50 reaches the set temperature, the controller transmits a stop signal to the preheating device 60 to automatically pause the preheating module 60, and subsequently uses the waste heat generated by the main combustion chamber 50 to complete the vaporization of the liquid fuel.

[0068] A liquid fuel vaporization combustion device and control system provided by the present application is adopted. The liquid fuel in the wind oil passage is preheated to vaporize the liquid fuel therein, and under the action of the air supply system, the gas fuel is premixed with oxygen-containing air before ignition to generate a uniform mixed gas, thereby realizing premixed combustion and improving combustion efficiency and energy utilization rate; after the combustion device continues to work stably, the waste heat generated can be separated from the preheating device to heat and vaporize the new liquid fuel, saving the energy consumption of the preheating device. At the same time, the absorption of waste heat can reduce the peripheral temperature of the combustion device and increase the service life of the device; since the vaporization of the liquid fuel adopts a heating method, there is no need for nozzle atomization, which avoids nozzle clogging. At the same time, when the liquid fuel enters the wind oil passage, the wind oil passage and the combustion chamber are mixed and transmitted by the combustion-supporting fan, which can realize the cleaning of the wind oil passage, avoid residual carbon deposition, and greatly reduce the maintenance rate and maintenance cost. The combustion device is widely used, safe and stable, has low power consumption, low noise, sufficient combustion, resource saving, easy maintenance, long service life, and has strong practicality.

[0069] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0070] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0071] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0072] Although the preferred embodiments of the present application have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0073] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. Liquid fuel vaporization combustion device, characterized in that: include: The main combustion chamber (10) has a flame output port at the top; A secondary combustion chamber (20) is arranged at the bottom of the main combustion chamber (10), and the top of the secondary combustion chamber (20) is open; An oxygen supply chamber (30) is connected to the bottom of the main combustion chamber (10), and a plurality of oxygen supply holes (301) are provided on the top of the oxygen supply chamber (30), and the oxygen supply holes (301) are connected to the main combustion chamber (10); A three-way ventilation pipe (40) is arranged outside the main combustion chamber (10), an air inlet (401) is provided at the bottom of the three-way ventilation pipe (40), a first air outlet (402) is provided on the three-way ventilation pipe (40) at the top of the main combustion chamber (10), a second air outlet (403) is provided on the three-way ventilation pipe (40) at the oxygen supply chamber (30), and the second air outlet (403) is connected to the oxygen supply chamber (30); The wind and oil passage (50) is arranged from top to bottom in close contact with the outer wall of the main combustion chamber (10), the input end at the top of the wind and oil passage (50) is connected to the first air outlet (402), and the output end at the bottom of the wind and oil passage (50) is connected to the auxiliary combustion chamber (20); A preheating device (60) is arranged close to the outer wall of the wind oil passage (50); An oil supply system, wherein the oil supply pipeline (404) is arranged in the three-air ventilating pipe (40), and the output end of the oil supply pipeline is arranged at the input end of the wind-oil walkway (50); An air supply system, the output end of which is connected to the air inlet (401); An ignition device (70) is disposed in the auxiliary combustion chamber (20).

2. The liquid fuel vaporization combustion device according to claim 1, characterized in that: The air oil passage (50) is a continuous spiral tube (501), and the spiral tube (501) is wound around the outer wall of the main combustion chamber (10). The inner wall of the spiral tube (501) is tightly arranged with the outer wall of the main combustion chamber (10).

3. The liquid fuel vaporization combustion device according to claim 1, characterized in that: The wind and oil walkway (50) comprises a plurality of horizontally arranged annular tubes (502), and the plurality of annular tubes (502) are arranged at intervals from top to bottom along the outer wall of the main combustion chamber (10), and the inner wall of each annular tube (502) is arranged closely to the outer wall of the main combustion chamber (10), and two adjacent annular tubes (502) are connected to each other, and the input end of the wind and oil walkway (50) is provided on the annular tube (502) at the top, and the output end of the wind and oil walkway (50) is provided on the annular tube (502) at the bottom.

4. The liquid fuel vaporization combustion device according to claim 2, characterized in that: The preheating device (60) is a continuous spiral preheating strip (601), the spiral preheating strip (601) corresponds to the spiral tube (501), and the spiral preheating strip (601) is arranged closely to the bottom of the spiral tube (501).

5. The liquid fuel vaporization combustion device according to claim 3, characterized in that: The preheating device comprises a plurality of annular preheating strips (602), and each bottom of the annular tube (502) is closely attached to a corresponding annular preheating strip (602), and the plurality of annular preheating strips (602) work synchronously.

6. The liquid fuel vaporization combustion device according to claim 1, characterized in that: The oil supply system comprises: an oil tank and an oil supply pump. The output end of the oil supply pump is connected to the oil supply pipeline. A flow valve is arranged on the oil supply pipeline.

7. The liquid fuel vaporization combustion device according to claim 1, characterized in that: The air supply system comprises: a combustion-supporting fan, wherein the output end of the combustion-supporting fan is connected to the air inlet.

8. The liquid fuel vaporization combustion device according to claim 1, characterized in that: It also comprises a fire gathering ring (80), wherein the fire gathering ring (80) is arranged at the flame output port.

9. The liquid fuel vaporization combustion device according to claim 1, characterized in that: It also includes a heat-insulating shell (90), which is coated on the outside of the wind and oil walkway (50), and the heat-insulating shell (90) is made of heat-resistant material.

10. A liquid fuel vaporization combustion device control system, comprising a liquid fuel vaporization combustion device as claimed in any one of claims 1 to 9, characterized in that: include: A temperature sensor is arranged in the air oil passage (50); A controller is electrically connected to the temperature sensor and the preheating device.

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