A multi-jet combustion device for liquid fuels

Abstract

This invention provides a multi-jet combustion device for liquid fuels, comprising: a combustion furnace, a heating belt, a vaporization component, a liquid fuel injection system, a gas path system, and a liquid fuel storage component; a central tube is provided in the combustion furnace; the liquid fuel injection system is connected to the vaporization component through the liquid fuel storage component, and the vaporization component is used to vaporize the liquid fuel; the vaporization component is connected to the combustion furnace through the heating belt; the gas path system is connected to the combustion furnace through the central tube. Through this embodiment of the multi-jet combustion device for liquid fuels, the multi-jet flame pattern of the liquid fuel is changed by altering the structure of the central tube, thus achieving uniform fuel mixing.

Description

Technical Field

[0001] This utility model relates to the field of combustion device technology, specifically to a multi-jet combustion device for liquid fuels. Background Technology

[0002] With the increasing demands for energy efficiency and environmental protection, combustion process optimization has become a key research area. Multi-injector arrangements are frequently used in various combustion chambers, such as rocket engines, afterburners, and micro-burners. In multi-injector combustion chambers, multiple flames coexist within a limited space, interacting with each other and exhibiting complex flame characteristics. This affects the temperature and heat release rate distribution within the combustion chamber, thereby altering the combustion efficiency, pollutant emissions, and combustion stability of the combustion system. Therefore, analyzing and understanding the interaction structure between multiple flames is crucial for optimizing the combustion process. Based on this, patent CN202310164173.6 proposes a method for the field of gas turbine technology, providing a micro-mixing head for a combustion chamber, a gas turbine combustion chamber, and a gas turbine, primarily for the efficient combustion of gaseous fuels such as hydrogen and the reduction of NO. x It reduces NO emissions by achieving efficient combustion of gaseous fuels and lowering NO emissions through a specific combustion chamber structure. xWhile this technology addresses emissions issues, due to the differences in combustion characteristics between gaseous and liquid fuels, it cannot be directly applied to multi-jet combustion of liquid fuels. It falls short in areas such as liquid fuel vaporization, mixing, and the stability of multi-jet flames. Patent CN202411594571.2 proposes a high-speed image analysis method for the interaction structure between multi-jet flames. This method focuses on high-speed image analysis of flame interactions, but it does not effectively address the formation process of multi-jet flames for liquid fuels. However, in practical applications, liquid fuels are the primary fuel form, making these multi-jet burners unsuitable. Patent CN202411318703.9 proposes a coaxial staged burner for the low-pollution combustion chamber of a gas-liquid dual-fuel gas turbine. This burner is suitable for gas-liquid dual-fuel gas turbines, but it still has limitations for multi-jet combustion of pure liquid fuels, especially in achieving uniform mixing and stable multi-jet flames. The multi-jet flame generation methods described above typically employ a single pipe to split the flow, resulting in inconsistent fuel flow rates at each outlet and poor flow uniformity. Furthermore, in practical applications, liquid fuels are more common, and uneven combustion of liquid fuels leads to flame instability. Moreover, existing multi-jet flame generators for liquid fuel applications generally suffer from poor flame stability, low combustion efficiency, and high pollutant emissions due to factors such as liquid fuel vaporization, mixing, and interactions between jets. Therefore, there is an urgent need for a multi-jet flame generator suitable for liquid fuels to meet increasingly stringent energy utilization and environmental protection requirements. Utility Model Content

[0003] In view of this, the embodiments of this specification provide a multi-jet combustion device for liquid fuel, which achieves the purpose of changing the multi-jet flame form of liquid fuel by changing the structure of the central tube and achieving uniform mixing of fuel.

[0004] The embodiments in this specification provide the following technical solutions:

[0005] A multi-jet combustion device for liquid fuel, comprising: Combustion furnace, heating belt, vaporization assembly, liquid fuel injection system, gas supply system, and liquid fuel storage assembly; The combustion furnace is equipped with a central tube; The liquid fuel injection system is connected to the vaporization unit via a liquid fuel storage component, which is used to vaporize the liquid fuel. The vaporization assembly is connected to the combustion furnace via a heating belt; The gas system is connected to the combustion furnace via a central pipe.

[0006] Furthermore, the central tube includes: Three jet outlets, mixing chamber, and main pipeline; The three jet outlets are located at the top of the mixing chamber, and the main pipeline is connected to the bottom of the mixing chamber; The mixing chamber is provided with a gas-liquid mixture storage area, a gas-liquid mixture mixing area, and a mixing buffer zone along the gas flow direction. The gas-liquid mixture storage area is used to store unfiltered and non-uniform gas-liquid mixtures. The gas-liquid mixture mixing area is used to homogenize and filter the gas-liquid mixture. The mixing buffer zone of the mixing chamber is used to store the filtered and homogenized gas.

[0007] Furthermore, the central tube includes: The height of the gas-liquid mixture storage area, the gas-liquid mixture mixing area, and the mixing buffer zone of the mixing chamber are all one-third of the height of the mixing chamber.

[0008] Furthermore, the mixing chamber also includes: Mixing chamber top cover, uniform flow sintering plate, and copper gasket for mixing chamber top cover; The mixing chamber top cover is located at the bottom of the mixing chamber, and the mixing chamber top cover copper gasket is located above the mixing chamber top cover; The uniform flow sintering plate is set in the gas-liquid mixture mixing zone. The top of the uniform flow sintering plate is fixed to the boss of the mixing chamber, and the bottom of the uniform flow sintering plate is fixed to the top cover of the mixing chamber.

[0009] Furthermore, the mixing chamber top cover includes a main pipeline outlet and a top cover boss; The main pipeline outlet and the top cover boss of the mixing chamber are both located on the top cover of the mixing chamber; The main pipeline outlet of the mixing chamber top cover is connected to the main pipeline, and the top cover boss (19) is used for the inlet buffer of gaseous fuel from the main pipeline.

[0010] Furthermore, the central tube is sealed to the top cover of the mixing chamber through a sealing part, which includes a sealing copper gasket; The inlet of the main pipeline of the central tube and the outlet of the main pipeline of the mixing chamber top cover are sealed by a sealing copper gasket.

[0011] Furthermore, the mixing chamber also includes a fixing component, which is disposed between the central tube and the top cover of the mixing chamber and is used to fix the component to the top cover of the mixing chamber.

[0012] Furthermore, the multi-jet combustion device also includes: The temperature controller is connected to the vaporization component and is used to control the heating temperature of the vaporization component.

[0013] Furthermore, the gas system includes gas cylinders, gas pipelines, flow controllers, and control valves; The gas cylinder is connected to the control valve via a gas pipeline, and then connected to the central pipe via the control valve. The flow controller is installed on the gas pipeline and is used to control the gas flow rate of the gas cylinder.

[0014] Furthermore, the combustion furnace includes a flow-coating sintering plate, which is disposed within the combustion furnace; The sintering plate is equipped with multiple sintering plate outlets, and the mixed gas is ignited through the sintering plate outlets.

[0015] Compared with the prior art, the beneficial effects that at least one technical solution adopted in the embodiments of this specification can achieve include at least: The liquid fuel multi-jet combustion device of this utility model achieves the change of liquid fuel multi-jet flame form by changing the structure of the central tube, thus realizing uniform fuel mixing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a multi-jet combustion device for liquid fuel according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of the central tube in an embodiment of the present utility model; Figure 3 This is a top view of the mixing chamber top cover according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the interface between the main pipeline and the top cover of the mixing chamber in an embodiment of this utility model; Figure 5 This is a schematic diagram of the three jet outlets according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the flow-coupling sintering plate according to an embodiment of the present invention.

[0018] The attached figures are labeled as follows: 1. Combustion furnace; 2. Central tube; 3. Heating belt; 4. Vaporization assembly; 5. Liquid fuel injection system; 6. Gas path system; 7. Liquid fuel storage assembly; 8. Temperature controller; 9. Flow controller; 10. Three-jet outlet; 11. Mixing chamber top cover; 12. Mixing buffer zone of the mixing chamber; 13. Uniform flow sintering plate; 14. Mixing chamber; 15. Copper gasket for mixing chamber top cover; 16. Fixing assembly; 17. Main pipeline; 18. Main pipeline outlet of mixing chamber top cover; 19. Top cover boss; 20. Main pipeline inlet; 21. Sealing copper gasket; 22. Main pipeline outlet; 23. Co-flow sintering plate outlet; 24. Co-flow sintering plate. Detailed Implementation

[0019] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] like Figure 1 As shown, the multi-jet combustion device for liquid fuel includes: Combustion furnace 1, central tube 2, heating belt 3, vaporization assembly 4, liquid fuel injection system 5, and gas path system 6.

[0022] The combustion furnace 1 includes a flow-coating sintering plate 24, which is disposed in the combustion furnace 1.

[0023] In the actual combustion process, the liquid fuel injection system 5 delivers liquid fuel to the vaporization component 4, which vaporizes the liquid fuel. The vaporized fuel then enters the combustion furnace 1 through the central pipe 2, where it interacts with the accompanying flow in the sintering plate 24 to form a multi-jet flame. The liquid fuel injection system 5 receives the liquid fuel from the liquid fuel storage component 7 via an injection pump into the vaporization component 4.

[0024] Combustion furnace 1 is a key component for generating multi-jet flame patterns, used to form a stable multi-jet flame configuration. Combustion furnace 1 is mainly composed of a co-flow sintering plate 24 and a central tube 2, which together form the overall structure of the combustion furnace. The central tube 2 is connected to the vaporization assembly 4 via a specific connection structure, ensuring that fuel can smoothly enter the combustion furnace from the vaporization assembly 4 and achieve uniform mixing and stable combustion within the combustion furnace 1.

[0025] The central tube 2 includes a mixing chamber top cover 11, a mixing buffer zone 12 of the mixing chamber, a uniform flow sintering plate 13, a mixing chamber 14, a copper gasket 15 for the mixing chamber top cover, a fixing assembly 16, and a main pipeline 17. The various parts are closely fitted together to form a complete pipeline of the central tube 2.

[0026] The vaporization assembly 4 is a key device for converting liquid fuel into gaseous fuel, and its performance directly affects the vaporization effect of the liquid fuel and the quality of the multi-jet flame. The vaporization assembly 4 uses electric heating, with the heating temperature precisely controlled by a temperature controller 8, ensuring the liquid fuel is fully vaporized and providing a uniform gaseous fuel for subsequent mixing and combustion. Simultaneously, a heating belt 3 is installed at the outlet of the vaporization assembly 4 to further prevent the vaporized gaseous fuel from condensing during transport, ensuring a stable fuel supply.

[0027] like Figure 2 As shown, a fixing component 16 is provided on the main pipeline 17, which is used for a tight fit between the main pipeline 17 and the top cover 11 of the mixing chamber. The mixing chamber 14 is mainly divided into three parts (gas-liquid mixture storage area, gas-liquid mixture mixing area, and mixing buffer 12 of the mixing chamber): the first part (gas-liquid mixture storage area) is the lower third of the mixing chamber 14 from the main pipeline 17, and is used to store unfiltered and non-uniform gas-liquid mixture; the second part (gas-liquid mixture mixing area) is the middle third of the mixing chamber where the uniform flow sintering plate 13 is placed, and is used to homogenize and filter the gas-liquid mixture; the third part is the mixing buffer 12 of the mixing chamber at the upper third of the three-jet inlet, and is used to store the filtered and homogenized gas.

[0028] The mixing chamber top cover 11 is equipped with a special mixing chamber top cover copper gasket 15. The mixing chamber top cover copper gasket 15 and the threaded mixing chamber top cover 11 are tightly fitted to prevent air leakage from the mixing chamber 14. Three top cover protrusions 19 are arranged on the mixing chamber top cover 11 for inlet buffering of gas fuel from the main pipeline.

[0029] The mixing chamber 14 contains an internal uniform flow sintering plate 13, wherein the uniform flow sintering plate 13 is separated from the upper part of the mixing chamber by one-third of the height of the entire mixing chamber 14 (i.e., the mixing buffer 12 of the mixing chamber), which is used to buffer the gas.

[0030] like Figure 2 As shown, the boss of the mixing chamber 14 is closely fitted with the upper uniform flow sintering plate 13 for fixing the uniform flow sintering plate 13 inside the mixing chamber. That is, the uniform flow sintering plate 13 is fixed by the cooperation of the upper one-third thickness of the concave platform of the mixing chamber 14 and the lower mixing chamber top cover 11.

[0031] like Figure 3 As shown, the main pipeline outlet 18 of the mixing chamber top cover is located on the mixing chamber top cover 11.

[0032] like Figure 4As shown, the main pipeline 17 and the mixing chamber top cover 11 are also sealed by threads. A special sealing copper gasket 21 is used to connect the outlet 22 of the main pipeline and the inlet 20 of the main pipeline. The inlet 20 of the main pipeline is the inlet that enters the lower third of the mixing chamber 14.

[0033] The uniform flow sintering plate 13 is used to filter unvaporized liquid fuel and uniformly distribute gaseous fuel from the main pipeline 17. The gap left at the top of the mixing chamber (the mixing buffer zone 12 of the mixing chamber) allows the homogenized gaseous fuel to pass through the three-jet outlet 10 to form a uniform three-jet gas flow, wherein the three jets are arranged as follows: Figure 5 and Figure 6 As shown.

[0034] The three-jet outlet 10 is closely fitted to the combustion furnace 1, specifically, the diameter of the accompanying sintering plate outlet 23 is closely fitted to the three-jet outlet 10. Together, they form a complete liquid multi-jet flame generating device.

[0035] The multiple three-jet outlets 10 of the central tube 2 can be designed as nozzles of different numbers, shapes and arrangements to use various liquid fuels and combustion fillers, thus facilitating the study of the characteristics of different multi-jet flames.

[0036] When forming a liquid multi-jet flame, the uniform flow sintering plate 13 and the mixing chamber top cover 11 inside the mixing chamber of the central tube 2 must first be fixed. After fixing this part, it is then matched with the accompanying flow sintering plate 24. Then, the two parts are placed on the combustion furnace 1. Finally, the main pipeline of the central tube 2 is sent from the bottom of the combustion furnace 1 into the top cover of the mixing chamber 14. Through the fixing component 16 on the upper part of the main pipeline 17, a tight fit is achieved, and the combination of the combustion furnace 1 and the central tube 2 is completed.

[0037] To prevent the vaporized liquid fuel from condensing, a heating belt 3 is added to the gaseous fuel pipeline after passing through the vaporization component 4.

[0038] The gas system 6 contains nitrogen, methane, and oxygen. Nitrogen is used as a carrier gas to provide kinetic energy after the liquid fuel is vaporized, while methane and oxygen are used to stabilize the multi-jet liquid flame by passing through the combustion furnace sintering plate 24.

[0039] The vaporization component 4 is used for vaporizing the liquid fuel delivered by the gas system 6.

[0040] The gas system 6 includes gas cylinders, gas pipelines, flow controllers, and control valves. The gases in the gas system are categorized into carrier gas and accompanying gas based on their function.

[0041] The carrier gas pipeline in gas path system 6 connects to the liquid fuel injection system. The carrier gas is primarily used to transport the liquid fuel into the vaporization assembly 4 and further into the combustion furnace. The carrier gas and the vaporized liquid fuel enter the main pipeline of the combustion furnace together to form a multi-jet flame for the liquid fuel. In addition, the carrier gas can also serve as a dilution gas; the fuel equivalence ratio can be controlled by adjusting the carrier gas flow rate.

[0042] When the carrier gas does not participate in the combustion reaction, an inert gas with stable chemical properties that does not support combustion, such as nitrogen, argon, helium, or other non-flammable gases, should be selected.

[0043] The liquid fuel injection system 5 includes a liquid injection pump and a liquid fuel storage assembly 7.

[0044] The liquid fuels applicable to this device include fuels that can be vaporized by heating at normal temperature and pressure, such as n-dodecane, kerosene, diesel, and gasoline.

[0045] The gases used include carrier nitrogen, accompanying methane, and oxygen. The carrier nitrogen primarily provides the driving force for the liquid fuel to enter the vaporization assembly 4 and the combustion furnace 1. The carrier nitrogen and the vaporized liquid fuel enter the main pipeline 17 of the combustion furnace together to form a multi-jet flame for the liquid fuel. The flow rate of the carrier nitrogen is set to 80 sccm to provide sufficient kinetic energy. The gas path system 6 is followed by the liquid fuel injection system 5. The injection rate of the liquid fuel injection system 5 can be adjusted from 0.1 to 0.7 ml / min. Through the combined action of the carrier nitrogen from the gas path system 6 and the liquid fuel injection pump, the liquid fuel injection system 5 drives the liquid fuel into the vaporization assembly 4. The vaporization assembly 4 is controlled by a temperature controller 8 via an electric heating wire to reach the set temperature, vaporizing the liquid fuel into gaseous fuel. The fuel after passing through the vaporization assembly 4 enters the central pipe 2 of the combustion furnace 1 through the gas path system 6 along with oxygen. To prevent condensation of the vaporized liquid fuel, a heating belt 3 is added to the mixed pipeline and the combustion furnace 1 to maintain the stability of the liquid fuel. Another inlet of the combustion furnace 1 is ignited by a mixture of methane and oxygen through the accompanying sintering plate 24, forming a stable multi-jet flame and a stable flat flame that increases the temperature of the combustion furnace.

[0046] The uniform flow sintering plate 13 is made of porous metal materials, such as stainless steel powder sintering, foam ceramic sintering, etc., and the porosity can be customized according to requirements.

[0047] The multi-jet combustion device for liquid fuels can achieve efficient vaporization, uniform mixing, and stable formation of multi-jet flames. It provides a reliable experimental platform for revealing the combustion characteristics of multi-jet flames of liquid fuels and provides important experimental support for studying how multi-jet flames can achieve higher combustion efficiency and lower pollutant generation rates during combustion.

[0048] In one embodiment of this invention, the central tube 2 is made of high-temperature resistant stainless steel 316L, with an inner diameter of 5mm and a wall thickness of 1mm. The mixing chamber 14 is cylindrical with a height of 32mm, and its inner diameters, from top to bottom, are 34mm, 36mm, and 44mm, respectively, according to the three different functional zones. The uniform flow sintering plate 13 has the same diameter (36mm) as the inner diameter of the middle part of the mixing chamber 14 and a thickness of 10mm.

[0049] In one embodiment of this utility model, the height of the mixing chamber in the central tube 2 is H=32mm, the uniform flow sintering plate 13 is located 11mm from the outlet of the combustion furnace 1, and the height of the upper buffer zone is 9mm.

[0050] In one embodiment of this application, such as Figure 5 As shown, the jet outlet distribution layout is as follows: three jet outlets 10 are distributed in parallel, with an outlet diameter of 2mm, a center distance of 6mm, and a wall thickness of 1mm.

[0051] In one embodiment of this invention, a multi-jet experiment was conducted on n-dodecane liquid fuel. At room temperature and pressure, n-dodecane is a liquid fuel. To study its multi-jet combustion characteristics, the liquid fuel needs to be vaporized. The carrier gas pipeline of the gas path system 6 is connected to the liquid fuel injection system 5, which uses nitrogen to transport the liquid fuel into the vaporization component 4, and then further transports the vaporized liquid fuel into the combustion furnace 1.

[0052] In the n-dodecane liquid fuel combustion experiment, nitrogen was selected as the carrier gas for gas path system 6, and the flow rate of the carrier nitrogen was set to 80 sccm to provide sufficient kinetic energy. The injection rate of liquid fuel injection system 5 can be adjusted from 0.1 to 0.7 ml / min.

[0053] The carrier gas nitrogen and the vaporized n-dodecane fuel enter the main pipe 17 of the combustion furnace 1 to form a multi-jet flame of liquid fuel. The liquid fuel injection system 5, through the combined action of the carrier gas nitrogen and the liquid feed pump in the gas system 6, drives the liquid fuel into the vaporization assembly 4. The vaporization assembly 4, controlled by the temperature controller 8 via electric heating wires, maintains the furnace temperature at a set value, vaporizing the liquid fuel into gaseous fuel. The fuel after passing through the vaporization assembly 4 enters the central pipe 2 of the combustion furnace along with oxygen through a mixing pipe. To prevent condensation of the vaporized liquid fuel, heating strips 3 are added to the mixing pipe and the combustion furnace 1 to maintain the stability of the liquid fuel. The other inlet of the combustion furnace 1 (the second inlet) introduces a mixture of methane and oxygen, which is discharged and ignited through the accompanying sintering plate 24, forming a stable multi-jet flame and a stable flat flame to increase the furnace temperature.

[0054] The experimental setup used in this embodiment can achieve stable and continuous multi-jet flames of liquid fuel.

[0055] In one embodiment of this invention, during the experiment, high-speed cameras, spectrometers, and other equipment can be used to conduct real-time observation and data acquisition of the multi-jet combustion characteristics of liquid fuels, such as flame morphology and soot generation. After the experimental data is acquired, it is analyzed using professional data processing software. For example, image processing algorithms are used to quantitatively analyze the flame morphology and calculate parameters such as the flame length, width, and area; spectral analysis software is used to process the spectral signal of the soot to obtain information such as soot concentration and particle size distribution. Simultaneously, by combining data such as combustion efficiency and pollutant emissions, the performance and effect of this patented device are comprehensively evaluated, providing a scientific basis for optimizing the combustion process.

[0056] The beneficial effects of this utility model are: The central tube adopts a split design, with each part tightly fitted and easily disassembled. The three functional zones within the mixing chamber are used for storing uniformly filtered gas, filtering the gas-liquid mixture after uniform flow to achieve flow uniformity and filtration, and storing the unfiltered gas-liquid mixture after vaporization. By designing central tubes with various structures, they can be flexibly replaced according to experimental needs to achieve different forms of multi-jet flames. Insulation treatment of the outer wall of the combustion furnace and the accompanying flame effectively prevents the vaporized liquid fuel from condensing in the pipeline, ensuring that the fuel can smoothly enter the combustion zone. Simultaneously, the accompanying flame design provides a stable heat source and power support for the multi-jet flame, making the liquid multi-jet flame more stable and uniform, avoiding flame flickering and flameout, and improving fuel stability and safety.

[0057] The above description is merely a specific embodiment of this utility model and should not be construed as limiting the scope of its implementation. Therefore, any substitution of equivalent components or equivalent changes and modifications made within the scope of protection of this utility model patent should still fall within the scope of this patent. Furthermore, the technical features, technical features and technical solutions, and technical solutions in this utility model can be freely combined and used.

Claims

1. A multi-jet combustion device for liquid fuels, characterized in that, include: Combustion furnace (1), heating belt (3), vaporization assembly (4), liquid fuel injection system (5), gas path system (6) and liquid fuel storage assembly (7); A central tube (2) is installed in the combustion furnace (1); The liquid fuel injection system (5) is connected to the vaporization component (4) via the liquid fuel storage component (7), and the vaporization component (4) is used to vaporize the liquid fuel; The vaporization component (4) is connected to the combustion furnace (1) via the heating belt (3); The gas system (6) is connected to the combustion furnace (1) through the central pipe (2).

2. The multi-jet combustion device for liquid fuel according to claim 1, characterized in that, The central tube (2) includes: Three jet outlets (10), mixing chamber (14) and main pipeline (17); The three jet outlets (10) are located at the top of the mixing chamber (14), and the main pipeline (17) is connected to the bottom of the mixing chamber (14); The mixing chamber (14) is provided with a gas-liquid mixture storage area, a gas-liquid mixture mixing area and a mixing buffer (12) of the mixing chamber along the gas flow direction. The gas-liquid mixture storage area is used to store unfiltered and non-uniform gas-liquid mixtures. The gas-liquid mixture mixing area is used to homogenize and filter the gas-liquid mixture. The mixing buffer (12) of the mixing chamber is used to store the filtered and homogenized gas.

3. The multi-jet combustion device for liquid fuel according to claim 2, characterized in that, The central tube (2) includes: The height of the gas-liquid mixture storage area, the gas-liquid mixture mixing area, and the mixing buffer zone (12) of the mixing chamber are all one-third of the height of the mixing chamber (14).

4. The multi-jet combustion device for liquid fuel according to claim 2, characterized in that, The mixing chamber (14) further includes: Mixing chamber top cover (11), uniform flow sintering plate (13) and mixing chamber top cover copper gasket (15); The mixing chamber top cover (11) is located at the bottom of the mixing chamber (14), and the mixing chamber top cover copper gasket (15) is located above the mixing chamber top cover (11); The uniform flow sintering plate (13) is disposed in the gas-liquid mixture mixing zone. The top of the uniform flow sintering plate (13) is fixed to the boss of the mixing chamber (14), and the bottom of the uniform flow sintering plate (13) is fixed to the top cover (11) of the mixing chamber.

5. The multi-jet combustion device for liquid fuel according to claim 4, characterized in that, The mixing chamber top cover (11) includes a main pipeline outlet (18) and a top cover boss (19). The main pipeline outlet (18) and the top cover boss (19) of the mixing chamber top cover are both provided on the mixing chamber top cover (11); The main pipeline outlet (18) of the mixing chamber top cover is connected to the main pipeline (17), and the top cover boss (19) is used for the inlet buffer of gaseous fuel from the main pipeline (17).

6. The multi-jet combustion device for liquid fuel according to claim 4, characterized in that, The central tube (2) is sealed to the top cover (11) of the mixing chamber through a sealing part, the sealing part including a sealing copper gasket (21). The inlet (20) of the main pipeline of the central tube (2) and the outlet (22) of the main pipeline of the mixing chamber top cover (11) are sealed by the sealing copper gasket (21).

7. The multi-jet combustion device for liquid fuel according to claim 4, characterized in that, The mixing chamber (14) further includes a fixing component (16), which is disposed between the central tube (2) and the mixing chamber top cover (11) and is used to fix the fixing component (16) and the mixing chamber top cover (11).

8. The multi-jet combustion device for liquid fuel according to claim 1, characterized in that, The multi-jet combustion device also includes: Temperature controller (8) is connected to vaporization component (4) and is used to control the heating temperature of vaporization component (4).

9. The multi-jet combustion device for liquid fuel according to claim 1, characterized in that, The gas system (6) includes a gas cylinder, gas pipeline, flow controller (9), and control valve; The gas cylinder is connected to the control valve through the gas pipeline, and is connected to the central pipe (2) through the control valve. The flow controller (9) is installed on the gas pipeline and is used to control the gas flow rate of the gas cylinder.

10. The multi-jet combustion device for liquid fuel according to claim 1, characterized in that, The combustion furnace (1) includes a flow-coating sintering plate (24), which is disposed in the combustion furnace (1); The sintering plate (24) is provided with multiple sintering plate outlets (23), and the mixed gas is ignited through the sintering plate outlets (23).

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