A fuel stove oxygen-aid device

Abstract

The application discloses a kind of fuel range oxygen-aiding devices, it is related to fuel range supporting equipment field, including range body, the side fixed assembly of range body is equipped with pressure stabilizing gas mixing tank, the top of range body and pressure stabilizing gas mixing tank is communicated with gas pipe, the bottom of pressure stabilizing gas mixing tank is symmetrically connected with fuel introduction nozzle and oxygen-aiding inlet nozzle, the inside of pressure stabilizing gas mixing tank is integrally formed with the pressure relief cavity and the uniform gas cavity distributed in upper and lower, adopt double-cavity structure cooperation self-rotating spiral spoiler blade, utilize oil gas flow self kinetic energy to drive blade rotation, without additional power, it can buffer high-speed air intake impact, simultaneously through spiral structure, extend oil gas mixing path and time length, eliminate local hypoxia, gas distribution uneven defect, improve fuel combustion fullness, reduce carbon black, carbon monoxide and other pollutants generation, energy saving and pollution reduction effect is outstanding.

Description

Technical Field

[0001] This invention relates to the field of equipment technology for fuel-fired stoves, specifically to an oxygen-assisted device for fuel-fired stoves. Background Technology

[0002] Oil-fired stoves are widely used in various fields such as restaurant kitchens, outdoor construction heating, small-scale workpiece heat treatment, and temporary heating due to their advantages of readily available fuel, wide applicability, and convenient start-up and shutdown. Currently, most mainstream oil-fired stoves employ an atmospheric pressure atomized fuel direct-fired structure. Liquid fuel is atomized into fine droplets through atomizing nozzles and then directly introduced into the combustion chamber to mix and burn with natural air. During combustion, the stability of oxygen supply, the uniformity of fuel-air mixing, and the controllability of intake pressure directly determine the completeness of fuel combustion, flame stability, and overall thermal efficiency of the equipment.

[0003] In existing technologies, most oil-fired stoves use natural ventilation or direct-supply fan oxygen supply structures, where oxygen-enriched air is directly and at high speed injected into the combustion chamber through ventilation ducts. This structure has certain drawbacks in practical applications: 1. Direct-supply air intake has a strong impact force and unstable airflow velocity, which can easily impact the combustion flame, causing the flame to flicker, shake, detach, or even extinguish. This not only affects the stability of cooking and heating operations but also causes continuous fluctuations in combustion conditions.

[0004] 2. After the high-speed airflow enters the combustion chamber, the mixing time with the instantaneously atomized fuel is extremely short. The fuel and gas cannot achieve uniform fusion in all directions, resulting in an imbalance of local oxygen excess and local severe oxygen deficiency. In the oxygen-deficient areas, the fuel will crack and undergo incomplete combustion, producing a large amount of pollutants such as carbon black, carbon monoxide, and hydrocarbons. This not only causes serious fuel waste and increases operating costs, but also exacerbates the emission of fumes and exhaust gases, which does not meet the requirements of energy-saving and environmentally friendly production operations.

[0005] 3. The existing oxygen supply structure cannot adjust the pressure, flow rate and ratio of oxygen-supporting air in real time according to the stove fire level, heating conditions and fuel atomization. Excessive oxygen under low fire conditions will take away a lot of heat from the furnace, causing heat loss; insufficient oxygen supply under high fire conditions will directly lead to a sharp drop in combustion efficiency and serious carbon buildup.

[0006] 4. Traditional equipment lacks oil and gas pressure stabilization and pressure reduction structures, and fluctuations in intake air pressure are directly transmitted to the combustion chamber, resulting in uneven temperature inside the furnace, poor heating accuracy, and inability to meet the needs of refined heating operations.

[0007] Currently, a small number of oxygen-assisted devices in the industry can only achieve simple air intake and pressurization functions. They do not have integrated functions such as airflow buffering, dynamic air mixing, ratio monitoring, and volume pressure regulation. Furthermore, they lack standardized oxygen-assisted regulation processes, resulting in significant deficiencies in equipment adaptability, regulation accuracy, and energy-saving effects.

[0008] Therefore, the present invention provides an oxygen-assisted device for fuel-fired stoves to solve the above-mentioned problems. Summary of the Invention

[0009] To address the problems existing in the prior art, this invention provides an oxygen-assisted device for oil-fired stoves, which solves the problems caused by direct oxygen supply in existing oil-fired stoves, such as large airflow impact, poor flame stability, uneven oil-gas mixing, incomplete fuel combustion, low thermal efficiency, inflexible operating condition control, and large emissions of exhaust pollutants.

[0010] To achieve the above objectives, the present invention adopts the following technical solution: an oxygen-assisted device for a fuel-fired stove, comprising a stove body, a pressure-stabilizing gas mixing tank fixedly mounted on one side of the stove body, a gas supply pipe connecting the stove body and the top of the pressure-stabilizing gas mixing tank, a fuel inlet and an oxygen-assisted gas inlet symmetrically connected to the bottom of the pressure-stabilizing gas mixing tank, an integrally formed pressure-reducing chamber and a gas-equalizing chamber distributed vertically inside the pressure-stabilizing gas mixing tank, the pressure-reducing chamber being located directly below the gas-equalizing chamber, the pressure-reducing chamber and the gas-equalizing chamber being connected through an array of ventilation holes, a vertically rotating rotating shaft mounted inside the pressure-reducing chamber, a spiral turbulence-disrupting gas mixing blade fixedly sleeved on the outside of the rotating shaft, and the outlet ends of the fuel inlet and the oxygen-assisted gas inlet both communicating with the inside of the pressure-reducing chamber.

[0011] As a further optimization of the above scheme, electric adjustment push rods are symmetrically fixedly installed on the left and right sides inside the gas equalization chamber. The telescopic ends of the two sets of electric adjustment push rods are fixedly connected to pressure regulating push plates. The end face of the pressure regulating push plate slides against the inner wall of the gas equalization chamber, and the edge of the pressure regulating push plate is embedded with a sealing strip.

[0012] As a further optimization of the above scheme, the top of the gas equalization chamber is sealed and connected to the bottom of the gas delivery pipe, a gas concentration detector is embedded in the outer wall of the pressure-stabilized gas mixing tank, the detection probe of the gas concentration detector extends into the gas equalization chamber, and a first on / off control valve is installed at the connection port between the gas delivery pipe and the pressure-stabilized gas mixing tank.

[0013] As a further optimization of the above solution, four sets of fixed support rods are welded in a ring array on the outer wall of the pressure-stabilizing mixing tank, and the ends of the four sets of fixed support rods are fixedly welded to the outer wall of the stove body.

[0014] As a further optimization of the above solution, an independent second flow control valve is installed at the connection positions of the fuel inlet, the oxygen-assisted air inlet, and the pressure-stabilizing mixing tank.

[0015] As a further optimization of the above scheme, the outer edge of the turbulent mixing blade is closely fitted with the inner wall of the pressure relief chamber, and the turbulent mixing blade is arranged in a continuous spiral upward structure along the rotation axis, with a blade pitch of 10-20mm and a blade thickness of 2-4mm.

[0016] As a further optimization of the above solution, a controller is fixedly mounted on the outer wall of the pressure-stabilizing mixing tank. The controller is electrically connected to the gas concentration detector, the electric adjusting push rod, the first on / off control valve, and the second flow control valve.

[0017] This invention also discloses an oxygen-assisted process for oil-fired stoves, applied to the aforementioned oxygen-assisted device for oil-fired stoves, comprising the following steps: S1. Equipment self-test upon startup: After powering on the device, the controller automatically detects the working status of each sensor, electric push rod, and control valve. After confirming that the equipment is fault-free, the air path is unobstructed, and the cavity is sealed, it enters standby mode. S2. Preset operating parameters: Based on the operating scenario of the fuel stove, preset parameters such as oil-gas ratio concentration, mixed gas pressure threshold, and airflow velocity through the controller. S3, Precise Oil and Gas Introduction: Open two sets of second flow control valves to introduce atomized fuel through the fuel inlet and oxygen-enriched air through the oxygen-enriched air inlet, respectively. Adjust the opening and closing degree of the control valves according to preset parameters to control the initial oil and gas introduction flow rate. S4. Pressure-reducing and turbulent mixing: After the oil and gas flow enters the pressure-reducing chamber, it impacts the turbulent mixing blades, driving the blades to rotate and counteracting the impact force of the airflow to achieve pressure reduction. At the same time, the oil and gas mixing path is extended by the turbulence of the spiral blades to complete the initial uniform mixing. S5. Gas uniformity and pressure regulation: After the initial mixing, the mixed gas enters the gas uniformity chamber evenly through the vent. The controller drives the electric adjustment push rod to slide the pressure regulating push plate according to the real-time data of the concentration detector, thereby changing the effective volume of the gas uniformity chamber, dynamically adjusting the pressure and flow rate of the mixed gas, and correcting the oil-gas ratio deviation. S6, Stable Gas Supply and Combustion: The uniformly stable gas mixture after regulation is delivered to the combustion chamber of the stove body through the gas pipeline to achieve stable and complete combustion; S7. Real-time dynamic control: The equipment collects mixed gas concentration parameters in real time throughout the entire operation process, dynamically fine-tunes the push rod stroke and the opening degree of the control valve, and achieves adaptive adaptation under all working conditions. S8. Shutdown and Final Operations: After completing the operation, close the intake control valve and the main air circuit control valve in sequence, exhaust the air for a delay, and then turn off the power to the equipment to complete the operation.

[0018] As a further optimization of the above scheme, in step S2, the commercial high-heat cooking mode is preset with high flow rate and high pressure ratio parameters, the low-heat heat preservation mode is preset with low flow rate and stable pressure ratio parameters, and the industrial heating mode is customized with temperature adaptation parameters.

[0019] As a further optimization of the above scheme, in step S8, the delayed exhaust time is set to 3-5 seconds.

[0020] The oxygen-assisted device for a fuel-fired stove of the present invention has the following beneficial effects: The present invention provides an oxygen-assisted device for a fuel-fired stove, which adopts a dual-chamber structure with self-rotating spiral baffles. The blades are driven to rotate by the kinetic energy of the oil and gas flow, which can buffer the impact of high-speed air intake without additional power. At the same time, the spiral structure extends the oil and gas mixing path and time, eliminates defects such as local oxygen deficiency and uneven gas distribution, improves the completeness of fuel combustion, and reduces the generation of pollutants such as carbon black and carbon monoxide, resulting in outstanding energy-saving and pollution-reducing effects.

[0021] The adaptive pressure and ratio adjustment system dynamically adjusts the effective volume of the gas equalization chamber through a sliding pressure regulating push plate. Combined with high-precision concentration detection and intelligent controller, it can finely adjust the mixed gas pressure, flow rate and oil-gas ratio in real time according to different working conditions such as high heat, low heat and constant temperature heating, correct combustion deviations, solve the problem of traditional equipment being unable to dynamically adapt to working conditions and the energy waste in high and low heat working conditions, and improve the overall thermal efficiency and operating accuracy of the stove.

[0022] Independent gas and fuel supply control is provided, with two sets of independent flow control valves that can separately adjust the fuel injection volume and oxygen-assisted air intake volume to adapt to the combustion requirements of fuels of different specifications and viscosities; coupled with a multi-point support and fixing structure, it can offset equipment operating vibration, avoid tank loosening and gas leakage, extend equipment service life, and reduce operation and maintenance costs.

[0023] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope as a result, and that the embodiments of the present invention include many changes, modifications and equivalents within the spirit and scope of the appended claims. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an oxygen-assisted device for a fuel-fired stove according to the present invention. Figure 2 This is a schematic cross-sectional view of the pressure-stabilizing mixing tank of the present invention; Figure 3 This is a flowchart of the oxygen-assisted process method of the present invention.

[0025] In the diagram: 1. Stove body; 2. Gas supply pipe; 3. Pressure-stabilizing mixing tank; 4. First on / off control valve; 5. Gas concentration detector; 6. Fuel inlet; 7. Aeration inlet; 8. Second flow control valve; 9. Fixed support rod; 10. Pressure-relieving chamber; 11. Gas equalization chamber; 12. Rotating shaft; 13. Turbulent mixing blades; 14. Electric adjustment push rod; 15. Pressure regulating push plate; 16. Vent hole; 17. Controller. Detailed Implementation

[0026] Please refer to the instruction manual appendix. Figure 1-3This invention provides a technical solution: an oxygen-assisted device for a fuel-fired stove, comprising: a stove body 1, a pressure-stabilizing mixing tank 3 fixedly mounted on one side of the stove body 1, a gas supply pipe 2 connecting the stove body 1 and the pressure-stabilizing mixing tank 3, and fuel inlet 6 and oxygen-assisted air inlet 7 symmetrically connected to the bottom end of the pressure-stabilizing mixing tank 3. A second flow control valve 8 is installed at the connection points between the fuel inlet 6, the oxygen-assisted air inlet 7 and the pressure-stabilizing mixing tank 3. The two sets of second flow control valves 8 are independent of each other and can respectively regulate the inlet flow rate of atomized fuel and the inlet flow rate of oxygen-assisted air to adapt to the mixing ratio requirements of different combustion conditions.

[0027] refer to Figure 2 As shown, four sets of fixed support rods 9 are welded in a ring array on the outer wall of the pressure-stabilizing gas mixing tank 3. The ends of the four sets of fixed support rods 9 are rigidly connected to the outer wall of the stove body 1, forming a four-sided support and fixing structure.

[0028] refer to Figure 1 As shown, the pressure-stabilizing gas mixing tank 3 has an integrally formed pressure-reducing chamber 10 and a gas-uniforming chamber 11. The pressure-reducing chamber 10 is located directly below the gas-uniforming chamber 11. The pressure-reducing chamber 10 and the gas-uniforming chamber 11 are connected by multiple sets of annular array vent holes 16. The vent holes 16 are evenly arranged, which allows the oil-gas mixture after the initial mixing to diffuse evenly upwards, avoids concentrated airflow impact, and ensures that the gas pressure inside the gas-uniforming chamber 11 is uniform and the concentration is consistent.

[0029] The pressure-reducing chamber 10 is vertically equipped with a rotating shaft 12. The upper and lower ends of the rotating shaft 12 are rotatably connected to the tank body through silent bearings. The rotational resistance is small and there is no noise, which is suitable for long-term continuous operation. The outer side of the rotating shaft 12 is fixedly sleeved with a spiral turbulence mixing blade 13. The outer edge of the blade is tightly fitted with the inner wall of the pressure-reducing chamber 10, eliminating airflow dead angles and maximizing the use of the chamber space to improve the turbulence mixing effect.

[0030] Electric adjusting push rods 14 are symmetrically fixedly installed on the left and right sides inside the gas equalization chamber 11. The electric adjusting push rods 14 are stepping push rods with controllable extension and retraction stroke and an error of no more than 0.1mm. The two sets of electric adjusting push rods 14 are fixedly connected to the pressure regulating push plate 15 at opposite ends. The edge of the pressure regulating push plate 15 is embedded with a high-temperature resistant sealing strip, which is completely in contact with the inner wall of the gas equalization chamber 11 to ensure good sealing of the chamber during the sliding of the push plate and avoid the imbalance of the mixture ratio and energy waste caused by the leakage of the mixed gas.

[0031] refer to Figure 1 and Figure 2 As shown, the top of the gas equalization chamber 11 is sealed and connected to the gas supply pipe 2. A gas concentration detector 5 is embedded on the outside of the pressure-stabilizing gas mixing tank 3. The detection probe extends into the gas equalization chamber 11 and can detect core parameters such as oxygen concentration and fuel vapor concentration in real time. The detection data is transmitted to the controller 17 in real time. A first on / off control valve 4 is installed at the connection between the gas supply pipe 2 and the tank body to control the on / off of the overall gas circuit and the basic flow rate adjustment.

[0032] A controller 17 is fixedly installed on the outer wall of the pressure-stabilized gas mixing tank 3. The controller 17 has a built-in data processing module, storage module, control module and touch screen. It is electrically connected to the gas concentration detector 5, electric adjustment push rod 14, first on / off control valve 4 and second flow control valve 8 respectively, realizing the integrated functions of data acquisition, parameter comparison, intelligent control and data storage, and supporting multiple sets of working condition parameters preset and one-click switching.

[0033] During actual operation, staff can preset corresponding operating parameters according to the stove's operating scenario. For commercial high-heat cooking, preset high-flow, high-pressure oil-gas ratio parameters; for low-heat heat preservation, preset low-flow, stable-pressure ratio parameters; and for industrial heating, custom ratio parameters can be set according to heating temperature requirements. After powering on, the equipment automatically completes a self-check and enters standby mode after confirming that all components are normal.

[0034] Atomized fuel and oxygen-enriched air enter the pressure-reducing chamber 10 through the fuel inlet 6 and oxygen-enriched air inlet 7, respectively. The high-speed flow of fuel and air directly impacts the spiral turbulence mixing blades 13. The blades and rotating shaft 12 are continuously rotated by the impact force of the airflow itself, requiring no additional power, thus saving energy and increasing efficiency. During the rotation of the blades, on the one hand, the high-speed impact force of the airflow is effectively offset, achieving airflow buffering and preventing the high-speed airflow from directly entering the combustion chamber and causing flame turbulence; on the other hand, the spiral upward blade structure extends the fuel and air flow path, allowing fuel vapor and oxygen-enriched air to continuously turbulently and merge during the flow, completing the initial efficient mixing and solving the problems of short mixing time and uneven mixing in traditional direct-supply air intake systems.

[0035] After the initial mixing, the air-fuel mixture enters the uniform air chamber 11 evenly through the array of vents 16. The gas concentration detector 5 collects the air-fuel mixture concentration data in the chamber in real time and transmits the data to the controller 17. The controller 17 compares the real-time parameters with preset standard parameters. If an oxygen-deficient condition occurs (low oxygen concentration, high fuel concentration), the controller 17 automatically adjusts the second flow control valve 8 on the oxygen-aiding side to increase its opening degree. At the same time, it controls the electric adjusting push rod 14 to drive the two sets of pressure regulating push plates 15 to move in opposite directions, expanding the effective volume of the uniform air chamber 11, reducing the air-fuel mixture pressure, increasing the airflow, and supplementing the oxygen-aiding air. If an oxygen-excessive condition occurs (low fuel concentration), the controller automatically reduces the oxygen-aiding air intake flow, reduces the chamber volume, and increases the air-fuel mixture pressure to ensure that the air-fuel ratio is always in the optimal state.

[0036] Meanwhile, by adjusting the stroke of the pressure regulating push plate 15, the output flow rate and pressure of the mixed gas can be precisely controlled. Under high-fire conditions, the cavity volume is expanded and the gas supply flow is increased to meet the high-power combustion requirements; under low-fire conditions, the cavity volume is reduced and the pressure is stabilized and the flow is limited to avoid excessive heat dissipation of oxygen, thus achieving precise constant-temperature combustion. After pressure stabilization, gas homogenization, and ratio correction, the high-quality mixed gas is stably delivered to the combustion chamber of the stove body 1 through the gas supply pipe 2, achieving continuous, stable, and complete combustion. The flame is uniform and soft, without flickering or black smoke, improving fuel combustion efficiency and significantly reducing exhaust pollutant emissions.

[0037] The equipment employs an intelligent dynamic control mode throughout the entire process, eliminating the need for frequent manual intervention. The controller 17 records operating parameters in real time, enabling traceability of operating data and adapting to the requirements of long-term continuous operation. After the operation is completed, the intake control valve and main air circuit control valve are closed sequentially according to the process steps, and the machine is shut down after a delayed exhaust to prevent the accumulation of residual fuel vapor in the cavity and improve the safety of equipment use.

[0038] refer to Figures 1 to 3 As shown, the oxygen-assisted process for oil-fired stoves in this invention includes the following steps: S1. Equipment self-test upon startup: After powering on the device, the controller automatically detects the working status of each sensor, electric push rod, and control valve. After confirming that the equipment is fault-free, the air path is unobstructed, and the cavity is sealed, it enters standby mode. S2, Preset Operating Parameters: Based on the operating scenario of the fuel stove, preset the oil-gas ratio concentration, mixed gas pressure threshold, and airflow velocity standard parameters through the controller; in step S2, the commercial high-fire cooking condition presets high flow and high pressure ratio parameters, the low-flow and stable pressure ratio parameters preset for the simmering and heat preservation condition, and the industrial heating condition customizes the temperature adaptation parameters. S3, Precise Oil and Gas Introduction: Open two sets of second flow control valves to introduce atomized fuel through the fuel inlet and oxygen-enriched air through the oxygen-enriched air inlet, respectively. Adjust the opening and closing degree of the control valves according to preset parameters to control the initial oil and gas introduction flow rate. S4. Pressure-reducing and turbulent mixing: After the oil and gas flow enters the pressure-reducing chamber, it impacts the turbulent mixing blades, driving the blades to rotate and counteracting the impact force of the airflow to achieve pressure reduction. At the same time, the oil and gas mixing path is extended by the turbulence of the spiral blades to complete the initial uniform mixing. S5. Gas uniformity and pressure regulation: After the initial mixing, the mixed gas enters the gas uniformity chamber evenly through the vent. The controller drives the electric adjustment push rod to slide the pressure regulating push plate according to the real-time data of the concentration detector, thereby changing the effective volume of the gas uniformity chamber, dynamically adjusting the pressure and flow rate of the mixed gas, and correcting the oil-gas ratio deviation. S6, Stable Gas Supply and Combustion: The uniformly stable gas mixture after regulation is delivered to the combustion chamber of the stove body through the gas pipeline to achieve stable and complete combustion; S7. Real-time dynamic control: The equipment collects mixed gas concentration parameters in real time throughout the entire operation process, dynamically fine-tunes the push rod stroke and the opening degree of the control valve, and achieves adaptive adaptation under all working conditions. S8. Shutdown and Completion Operations: After the operation is completed, close the intake control valve and the main air circuit control valve in sequence, delay the exhaust time, and then turn off the power to the equipment to complete the operation. In step S8, the exhaust time is set to 3-5 seconds to completely remove residual fuel vapor from the cavity and improve the safety of equipment use.

Claims

1. An oxygen-assisted device for a fuel-fired stove, comprising a stove body (1), characterized in that: A pressure-stabilizing gas mixing tank (3) is fixedly installed on one side of the stove body (1). A gas supply pipe (2) is connected between the top of the stove body (1) and the pressure-stabilizing gas mixing tank (3). A fuel inlet (6) and an oxygen-assisted gas inlet (7) are symmetrically connected to the bottom of the pressure-stabilizing gas mixing tank (3). The pressure-stabilizing gas mixing tank (3) has an integrally formed pressure-reducing chamber (10) and a gas equalization chamber (11) distributed vertically. The pressure-reducing chamber (10) is located directly below the gas equalization chamber (11). The pressure-reducing chamber (10) and the gas equalization chamber (11) are connected through an array of ventilation holes (16). A rotating shaft (12) is vertically mounted inside the pressure-reducing chamber (10). A spiral turbulence mixing blade (13) is fixedly sleeved on the outside of the rotating shaft (12). The outlet ends of the fuel inlet (6) and the oxygen-assisted gas inlet (7) are connected to the inside of the pressure-reducing chamber (10).

2. The oxygen-assisted device for a fuel-fired stove according to claim 1, characterized in that: Electric adjustment push rods (14) are symmetrically fixedly installed on the left and right sides inside the gas equalization chamber (11). The telescopic ends of the two sets of electric adjustment push rods (14) are fixedly connected to pressure regulating push plates (15). The end face of the pressure regulating push plate (15) slides against the inner wall of the gas equalization chamber (11), and the edge of the pressure regulating push plate (15) is embedded with a sealing strip.

3. The oxygen-assisted device for a fuel-fired stove according to claim 1, characterized in that: The top of the gas equalization chamber (11) is sealed and connected to the bottom of the gas delivery pipe (2). A gas concentration detector (5) is embedded in the outer wall of the pressure-stabilized gas mixing tank (3). The detection probe of the gas concentration detector (5) extends into the gas equalization chamber (11). A first on / off control valve (4) is installed at the connection port between the gas delivery pipe (2) and the pressure-stabilized gas mixing tank (3).

4. The oxygen-assisted device for a fuel-fired stove according to claim 1, characterized in that: The outer wall of the pressure-stabilizing mixing tank (3) is welded with four sets of fixed support rods (9) in a ring array. The ends of the four sets of fixed support rods (9) are fixedly welded to the outer wall of the stove body (1).

5. The oxygen-assisted device for a fuel-fired stove according to claim 1, characterized in that: Each of the fuel inlet (6), oxygen inlet (7), and pressure-stabilizing mixing tank (3) is equipped with an independent second flow control valve (8).

6. The oxygen-assisted device for a fuel-fired stove according to claim 1, characterized in that: The outer edge of the turbulent mixing blade (13) is closely fitted to the inner wall of the pressure relief chamber (10). The turbulent mixing blade (13) is arranged in a continuous spiral upward structure along the rotation axis (12). The blade pitch is 10-20mm and the blade thickness is 2-4mm.

7. The oxygen-assisted device for a fuel-fired stove according to claim 1, characterized in that: The outer wall of the pressure-stabilized gas mixing tank (3) is fixedly equipped with a controller (17), which is electrically connected to the gas concentration detector (5), the electric adjusting push rod (14), the first on / off control valve (4), and the second flow control valve (8).

8. A method for oxygen-assisted combustion in a fuel-fired stove, characterized in that: The oxygen-assisted device for a fuel-fired stove as described in any one of claims 1-7 comprises the following steps: S1. Equipment self-test upon startup: After powering on the device, the controller automatically detects the working status of each sensor, electric push rod, and control valve. After confirming that the equipment is fault-free, the air path is unobstructed, and the cavity is sealed, it enters standby mode. S2. Preset operating parameters: Based on the operating scenario of the fuel stove, preset parameters such as oil-gas ratio concentration, mixed gas pressure threshold, and airflow velocity through the controller. S3, Precise Oil and Gas Introduction: Open two sets of second flow control valves to introduce atomized fuel through the fuel inlet and oxygen-enriched air through the oxygen-enriched air inlet, respectively. Adjust the opening and closing degree of the control valves according to preset parameters to control the initial oil and gas introduction flow rate. S4. Pressure-reducing and turbulent mixing: After the oil and gas flow enters the pressure-reducing chamber, it impacts the turbulent mixing blades, driving the blades to rotate and counteracting the impact force of the airflow to achieve pressure reduction. At the same time, the oil and gas mixing path is extended by the turbulence of the spiral blades to complete the initial uniform mixing. S5. Gas uniformity and pressure regulation: After the initial mixing, the mixed gas enters the gas uniformity chamber evenly through the vent. The controller drives the electric adjustment push rod to slide the pressure regulating push plate according to the real-time data of the concentration detector, thereby changing the effective volume of the gas uniformity chamber, dynamically adjusting the pressure and flow rate of the mixed gas, and correcting the oil-gas ratio deviation. S6, Stable Gas Supply and Combustion: The uniformly stable gas mixture after regulation is delivered to the combustion chamber of the stove body through the gas pipeline to achieve stable and complete combustion; S7. Real-time dynamic control: The equipment collects mixed gas concentration parameters in real time throughout the entire operation process, dynamically fine-tunes the push rod stroke and the opening degree of the control valve, and achieves adaptive adaptation under all working conditions. S8. Shutdown and Final Operations: After completing the operation, close the intake control valve and the main air circuit control valve in sequence, exhaust the air for a delay, and then turn off the power to the equipment to complete the operation.

9. The oxygen-assisted process method for a fuel-fired stove according to claim 8, characterized in that: In step S2, the commercial high-heat cooking mode is preset with high flow rate and high pressure ratio parameters, the low-heat heat preservation mode is preset with low flow rate and stable pressure ratio parameters, and the industrial heating mode is customized with temperature adaptation parameters.

10. The oxygen-assisted process for a fuel-fired stove according to claim 8, characterized in that: In step S8, the delayed exhaust duration is set to 3-5 seconds.

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