Gas generating device and method with adjustable hydrogen-oxygen ratio

Abstract

The application belongs to the technical field of hydrogen-oxygen atomizing device, and relates to a gas generating device with adjustable hydrogen-oxygen ratio, which comprises a hydrogen-oxygen generating device, an oxygen generating device and a control device, the hydrogen-oxygen generating device is used for generating hydrogen and oxygen with a ratio of 2:1, the oxygen generating device is used for generating oxygen with a concentration of 93%+ / -3%, and the control device is used for controlling the flow generated by the hydrogen-oxygen generating device and the flow of the oxygen generating device, so as to adjust the hydrogen-oxygen ratio of the output. The application controls the flow of each device through a control system, widens the ratio mode of hydrogen-oxygen mixed gas, meets the oxygen flow demand on the basis of meeting the hydrogen flow demand, reduces the manufacturing difficulty in the application occasion requiring large oxygen flow, saves energy, widens the application scene of hydrogen-oxygen mixed gas, and provides a more comprehensive gas supply mode for treating respiratory diseases by using hydrogen.

Description

Technical Field

[0001] This invention belongs to the technical field of hydrogen-oxygen atomization devices, and particularly relates to a gas generating device and method with an adjustable hydrogen-oxygen ratio. Background Technology

[0002] In 2007, Japanese scientist Professor Shigeo Ohta discovered the medical effects of hydrogen, proving that hydrogen has a significant protective effect against various types of tissue damage in the human body. For example, it can effectively reduce the degree of tissue damage caused by various harmful factors to the respiratory tract and lungs. Hydrogen not only effectively protects various cells in the respiratory system and reduces the probability of various lung diseases, but also has clinical evidence to help treat related diseases. Currently, hydrogen-oxygen nebulizers are used in the medical field to assist in the treatment of acute exacerbations of chronic obstructive pulmonary disease (COPD) in adult patients. Existing hydrogen-oxygen nebulizers generally use PEM water electrolysis or alkaline electrolysis to produce hydrogen, generating a hydrogen-oxygen mixture in a fixed 2:1 ratio. However, some respiratory diseases require specific oxygen flow rates. For example, in COPD, according to COPD treatment guidelines, patients with chronic respiratory failure undergoing long-term oxygen therapy require an oxygen flow rate of 1-2 liters per minute if using a stand-alone oxygen concentrator. High-flow nasal cannula humidified oxygen therapy (HFNC) for COPD acute exacerbations with respiratory failure involves continuously providing patients with high-flow nasal cannula oxygen at a relatively constant concentration (21%-100%), temperature (31-37°C), and humidity (8-80%). L) Inhaled gas, but the maximum gas supply of existing hydrogen-oxygen atomizing machine technology is 3 liters of hydrogen and oxygen combined, that is, the maximum oxygen supply is 1 liter. Its application range is relatively narrow. If a larger oxygen flow is to be provided, the power consumption, size and safety of the original method are challenged. Summary of the Invention

[0003] The purpose of this invention is to provide a gas generating device and method with an adjustable hydrogen-oxygen ratio to solve the above-mentioned technical problems.

[0004] To solve the above-mentioned technical problems, the specific technical solution of the present invention, a gas generating device and method with an adjustable hydrogen-oxygen ratio, is as follows:

[0005] A gas generating device with an adjustable hydrogen-oxygen ratio includes a hydrogen-oxygen generating device, an oxygen generating device, and a control device. The hydrogen-oxygen generating device is used to generate hydrogen and oxygen in a 2:1 ratio, the oxygen generating device is used to generate oxygen with a concentration of 93% ± 3%, and the control device is used to control the flow rate of the hydrogen-oxygen generating device and the flow rate of the oxygen generating device, thereby adjusting the output hydrogen-oxygen ratio.

[0006] Furthermore, the hydrogen-oxygen generating device includes a water tank, a PEM hydrogen-oxygen generator, a hydrogen-water vapor separator, an oxygen-water vapor separator, a flame arrester, a first one-way valve, and a second one-way valve. The outlet of the water tank is connected to the input end of the PEM hydrogen-oxygen generator. The hydrogen output end of the PEM hydrogen-oxygen generator is connected to the hydrogen-water vapor separator. The oxygen output end of the PEM hydrogen-oxygen generator is connected to the oxygen-water vapor separator. The output end of the hydrogen-water vapor separator is connected to the flame arrester. The flame arrester is connected to the first one-way valve. The first one-way valve is connected to the atomizer. The atomizer is connected to the atomizing cup. The output end of the oxygen-water vapor separator is connected to the second one-way valve, which controls the output of oxygen. The second one-way valve is connected to the atomizer. The liquid outputs of the hydrogen-water vapor separator and the oxygen-water vapor separator are connected to the water tank, allowing the liquid to flow back into the water tank.

[0007] Furthermore, when the hydrogen-oxygen generator is turned on, the water tank supplies water to the PEM hydrogen-oxygen generator. The PEM hydrogen-oxygen generator electrolyzes the water to produce separated hydrogen and oxygen in a volume ratio of 2:1. The hydrogen passes through a hydrogen-water vapor separator, and the oxygen passes through an oxygen-water vapor separator. The hydrogen-water vapor separator and the oxygen-water vapor separator separate the water vapor carried and return it to the water tank. The two parts of the gas are mixed in the atomizer in a hydrogen-oxygen mixture in a 2:1 ratio through the first one-way valve and the second one-way valve, respectively.

[0008] Furthermore, the oxygen generating device includes an air filter, an oil-free air compressor, a control valve assembly, a first molecular sieve, a second molecular sieve, a three-way valve, a fine sieve tower, and a third one-way valve. The air filter is connected to the oil-free air compressor, the oil-free air compressor is connected to the control valve assembly, the control valve assembly is connected to the input and output ends of the first and second molecular sieves respectively through multiple control valves, the outputs of the first and second molecular sieves are connected to the three-way valve, and the combined outputs are connected to the fine sieve tower. The fine sieve tower is connected to the third one-way valve, the third one-way valve is connected to a sensor, and the sensor is connected to the atomizer.

[0009] Furthermore, the control valve group includes solenoid valve one, solenoid valve two, solenoid valve three, solenoid valve four, and solenoid valve five. Solenoid valve one and solenoid valve four are intake solenoid valves, solenoid valve two and solenoid valve three are exhaust solenoid valves, and solenoid valve five is the control valve of the pressure equalization circuit. Solenoid valve one is connected to the intake port of the first molecular sieve, solenoid valve two is connected to the exhaust port of the first molecular sieve, solenoid valve three is connected to the intake port of the second molecular sieve, solenoid valve four is connected to the exhaust port of the second molecular sieve, and solenoid valve five is connected between the output ends of the first and second molecular sieves.

[0010] Furthermore, when the oxygen generator is turned on, air passes through the air filter and enters the oil-free air compressor. Driven by the oil-free air compressor, air enters the first or second molecular sieve. Solenoid valve one and solenoid valve three form one circuit. When solenoid valve one and solenoid valve three are opened, the first molecular sieve adsorbs and the second molecular sieve desorbs. Solenoid valve three and solenoid valve four form another circuit. When solenoid valve three and solenoid valve four are opened, the first molecular sieve desorbs and the second molecular sieve adsorbs. After passing through the sensor, the gas outputs an oxygen stream.

[0011] Furthermore, the control device includes a main control board, sensors, and a controllable constant current source. The power interface of the PEM hydrogen-oxygen generator is connected to the controllable constant current source. The controllable constant current source, the oil-free air compressor, the control valve group, and the sensors are electrically connected to the main control board. The sensors include a pressure sensor and a flow concentration sensor. The main control board collects the gas pressure and flow concentration detected by the sensors to control the flow rate of the PEM hydrogen-oxygen generator, the power of the oil-free air compressor, and the switching of the control valve group.

[0012] The present invention also discloses a method for adjusting a gas generator with an adjustable hydrogen-oxygen ratio, comprising the following steps:

[0013] Detection steps: The main control board receives pressure and flow data collected by the pressure sensor and flow concentration sensor in real time, and calculates the current hydrogen-oxygen flow ratio based on the pressure and flow data;

[0014] Hydrogen-oxygen generator flow control steps: Control the hydrogen production flow rate by controlling the duty cycle of the PWM of the controllable constant current source.

[0015] Oxygen generator flow control steps: Based on the sensor's measured parameters, control the speed of the motor in the oil-free air compressor, thereby controlling the oxygen production flow rate.

[0016] Furthermore, the calculation method in the hydrogen-oxygen generator flow control step is as follows:

[0017] Gas production is calculated from the current test value using the following formula:

[0018] Q=Inη / 2390

[0019] In the formula:

[0020] Q represents hydrogen production, measured in cubic meters per hour (m³). 3 / h);

[0021] I represents the DC operating current passing through the electrolysis chamber, measured in amperes (A).

[0022] n is the number of electrolysis chambers;

[0023] η is the current efficiency, expressed in (%).

[0024] The set current under the gas production condition is obtained by transformation:

[0025] I=2390Q / nη

[0026] For a hydrogen-oxygen generator rated to produce V mL / min of hydrogen, its rated drive current is W. The drive current is linearly related to the hydrogen production. The magnitude of the drive current is controlled by PWM. The duty cycle of the PWM is linearly related to the current magnitude. That is, it is a constant current source with a rated drive output current of W.

[0027] Furthermore, in the oxygen generator flow control step:

[0028] The on / off states of solenoid valves one and four are exactly opposite, and their opening and closing times are symmetrical and equal. The opening times of solenoid valves two and three are shorter than those of the intake solenoid valve, and compared to the corresponding intake solenoid valve, they open later and close earlier. The operating cycle of the equalizing solenoid valve is equal to the adsorption time of a single molecular sieve, i.e., half a cycle. When solenoid valve five is open, solenoid valves two and three are both in the closed state. The closing of solenoid valve five occurs at the same time as the opening of the exhaust solenoid valve.

[0029] The gas generating apparatus and method with adjustable hydrogen-to-oxygen ratio of the present invention have the following advantages:

[0030] This invention adds an oxygen generator to the input of a hydrogen-oxygen generator. Sensors detect gas flow and pressure, and a control system regulates the flow of each component. This device broadens the methods for creating hydrogen-oxygen mixtures, satisfying both hydrogen and oxygen flow requirements simultaneously. In applications demanding high oxygen flow rates, it reduces manufacturing complexity, saves energy, and expands the application scenarios for hydrogen-oxygen mixtures. It provides a more comprehensive gas supply method for treating respiratory diseases with hydrogen. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the hydrogen-oxygen ratio adjustable gas generator of the present invention.

[0032] Figure 2 This is a schematic diagram of the control valve assembly structure of the present invention;

[0033] Figure 3 This is a schematic diagram of the control device structure of the present invention;

[0034] The markings in the diagram are as follows: 1. Hydrogen-oxygen generator; 11. Water tank; 12. PEM hydrogen-oxygen generator; 13. Hydrogen-water vapor separator; 14. Oxygen-water vapor separator; 15. Flame arrester; 16. First check valve; 17. Second check valve; 2. Oxygen generator; 21. Air filter; 22. Oil-free air compressor; 23. Control valve group; 231. Solenoid valve one; 232. Solenoid valve two; 233. Solenoid valve three; 234. Solenoid valve four; 235. Solenoid valve five; 24. First molecular sieve; 25. Second molecular sieve; 26. T-junction; 27. Fine sieve tower; 28. Third check valve; 3. Control device; 31. Main control board; 32. Sensor; 321. Pressure sensor; 322. Flow concentration sensor; 33. Controllable constant flow source; 41. Atomizer; 42. Atomizing cup. Detailed Implementation

[0035] To better understand the purpose, structure, and function of this invention, the following detailed description, in conjunction with the accompanying drawings, provides an adjustable hydrogen-oxygen ratio gas generating apparatus and method of this invention.

[0036] like Figure 1 As shown, the present invention provides a gas generating device with an adjustable hydrogen-oxygen ratio, comprising a hydrogen-oxygen generating device 1, an oxygen generating device 2, and a control device 3. The hydrogen-oxygen generating device is used to generate hydrogen and oxygen in a 2:1 ratio, the oxygen generating device is used to generate oxygen with a concentration of 93% ± 3%, and the control device 3 is used to control the generation flow rate of the hydrogen-oxygen generating device and the flow rate of the oxygen generating device, thereby adjusting the output hydrogen-oxygen ratio.

[0037] The hydrogen-oxygen generator 1 includes a water tank 11, a PEM hydrogen-oxygen generator 12, a hydrogen-water vapor separator 13, an oxygen-water vapor separator 14, a flame arrester 15, a first check valve 16, and a second check valve 17. The outlet of the water tank 11 is connected to the input terminal of the PEM hydrogen-oxygen generator 12. The hydrogen output terminal of the PEM hydrogen-oxygen generator 12 is connected to the hydrogen-water vapor separator 13, and the oxygen output terminal of the PEM hydrogen-oxygen generator 12 is connected to the oxygen-water vapor separator 14. The output end of device 13 is connected to flame arrester 15, flame arrester 15 is connected to first one-way valve 16, first one-way valve 16 is connected to atomizer, atomizer 41 is connected to atomizing cup 42, the output end of oxygen water vapor separator 14 is connected to second one-way valve 17, second one-way valve 17 controls the output of oxygen, second one-way valve 17 is connected to atomizer 41, the liquid output of hydrogen water vapor separator 13 and oxygen water vapor separator 14 is connected to water tank 11, and the liquid is returned to water tank 11.

[0038] When the hydrogen-oxygen generator 1 is turned on, the water tank 11 supplies water to the PEM hydrogen-oxygen generator 12. The PEM hydrogen-oxygen generator 12 electrolyzes the water to produce separated hydrogen and oxygen in a volume ratio of 2:1. The hydrogen passes through the hydrogen-water vapor separator 13, and the oxygen passes through the oxygen-water vapor separator 14. The hydrogen-water vapor separator 13 and the oxygen-water vapor separator 14 separate the water vapor they carry and return it to the water tank 11. The two parts of the gas are mixed in the atomizer 41 through the first one-way valve 16 and the second one-way valve 17 to form a hydrogen-oxygen mixture in a ratio of 2:1.

[0039] The oxygen generator 2 includes an air filter 21, an oil-free air compressor 22, a control valve assembly 23, a first molecular sieve 24, a second molecular sieve 25, a three-way valve 26, a fine sieve tower 27, and a third check valve 28. The air filter 21 is connected to the oil-free air compressor 22, which is connected to the control valve assembly 23. The control valve assembly 23 connects to the input and output terminals of the first molecular sieve 24 and the second molecular sieve 25 via multiple control valves. The outputs of the first molecular sieve 24 and the second molecular sieve 25 are connected to the three-way valve 26, converging into a single line connected to the fine sieve tower 27. The fine sieve tower 27 is connected to the third check valve 28, which is connected to a sensor 32. The sensor 32 is connected to the atomizer 41. Figure 2 As shown, the control valve group 23 includes solenoid valve 1 231, solenoid valve 232, solenoid valve 3 233, solenoid valve 4 234, and solenoid valve 5 235. Solenoid valve 1 231 is connected to the air inlet of the first molecular sieve 24, solenoid valve 232 is connected to the air outlet of the first molecular sieve 24, solenoid valve 3 233 is connected to the air inlet of the second molecular sieve 25, solenoid valve 4 234 is connected to the air outlet of the second molecular sieve 25, and solenoid valve 5 235 is connected between the output ends of the first molecular sieve 24 and the second molecular sieve 25.

[0040] Molecular sieves are crystalline aluminosilicates whose atoms are arranged in a specific shape. The basic structural unit is a tetrahedron formed by four oxygen anions surrounding a smaller silicon or aluminum ion. Under pressure, the molecular sieve adsorbs a large number of nitrogen atoms; under pressure, it releases the adsorbed nitrogen atoms (a process called desorption). During operation, air is compressed into the first molecular sieve 24, nitrogen is adsorbed, and the remaining gas is mainly oxygen. As the oil-free air compressor 22 continuously compresses air, the first molecular sieve 24 approaches saturation. Before saturation, the control valve group 23 switches the output of the oil-free air compressor 22 to the second molecular sieve 25, meaning the compressor begins compressing air into it, while the nitrogen in the first molecular sieve 24 is discharged. Once the second molecular sieve 25 approaches saturation, the control valve group 23 switches back to the first molecular sieve 24.

[0041] When oxygen generator 2 is turned on, air passes through air filter 21 and enters oil-free air compressor 22. Driven by oil-free air compressor 22, air enters either the first molecular sieve 24 or the second molecular sieve 25. Solenoid valve 1 (231) and solenoid valve 3 (233) form one circuit; when these two solenoid valves are opened, the first molecular sieve 24 adsorbs, and the second molecular sieve 25 desorbs. Solenoid valve 3 (233) and solenoid valve 4 (234) form another circuit; when these two solenoid valves are opened, the first molecular sieve 24 desorbs, and the second molecular sieve 25 adsorbs. Solenoid valve 1 (231) and solenoid valve 4 (234) are intake solenoid valves, and solenoid valve 2 (232) and solenoid valve 3 (233) are exhaust solenoid valves. Solenoid valve 5 (235) is the control valve for the pressure equalization circuit; after passing through sensor 32, the gas outputs an oxygen stream.

[0042] like Figure 3 As shown, the control device 3 includes a main control board 31, sensors 32, and a controllable constant current source 33. The power interface of the PEM hydrogen-oxygen generator 12 is connected to the controllable constant current source 33. The controllable constant current source 33, the oil-free air compressor 22, the control valve group 23, and the sensors 32 are electrically connected to the main control board 31. The sensors 32 include a pressure sensor 321 and a flow-concentration sensor 322. The main control board 31 collects the gas pressure and flow-concentration detected by the sensors 32 to control the flow rate of the PEM hydrogen-oxygen generator 12, the power of the oil-free air compressor 22, and the switching of the control valve group 23.

[0043] The adjustment method of the hydrogen-oxygen ratio adjustable gas generator of the present invention includes the following steps:

[0044] Detection steps: The main control board 31 receives the pressure data and flow data collected by the pressure sensor and flow concentration sensor in real time, and calculates the current hydrogen-oxygen flow ratio based on the pressure data and flow data.

[0045] Hydrogen-oxygen generator flow control steps:

[0046] According to the laws of electrolysis—the quantitative change of any substance during electrolysis obeys Faraday's law—the Faraday law for the electrolysis of water to produce hydrogen states that, under standard conditions, 2 × 96,500 C of electricity can electrolyze 1 mol of water to produce 1 mol of hydrogen and 1 / 2 mol of oxygen. The volume of 1 mol of hydrogen gas under standard conditions is 22.43 × 10⁻⁶. -3 m 2 Therefore, under standard conditions, to produce 1 m 3 The theoretical amount of electricity required for hydrogen production is given by the formula:

[0047]

[0048] Gas production is calculated from the current test value using the following formula:

[0049]

[0050] In the formula:

[0051] Q represents hydrogen production, measured in cubic meters per hour (m³). 3 / h);

[0052] I represents the DC operating current passing through the electrolysis chamber, measured in amperes (A).

[0053] n is the number of electrolysis chambers;

[0054] η is the current efficiency (selected in the design), expressed in (%).

[0055] The set current under the gas production condition is obtained by transformation:

[0056]

[0057] For a hydrogen-oxygen generator rated to produce V mL / min of hydrogen, its rated drive current is W. Therefore, the drive current is linearly related to the hydrogen production rate. That is, to produce 1 / 2 V mL / min of hydrogen, the drive current is controlled to be 1 / 2 W; to produce 1 / 3 V mL / min, the drive current is controlled to be 1 / 3 W, and so on. The magnitude of the drive current is controlled by PWM. The duty cycle of the PWM is linearly related to the current magnitude. For example, a constant current source with a rated drive output current of W, controlled by a 300Hz PWM wave, will output a constant current of 1 / 3 W if the duty cycle is 1 / 3; 1 / 2 if the duty cycle is 1 / 2; and so on. Therefore, by controlling the duty cycle of the PWM of the controllable constant current source 33, the hydrogen production flow rate can be directly controlled.

[0058] Oxygen generator flow control steps:

[0059] Solenoid valve 1 (231) and solenoid valve 4 (234) are intake solenoid valves; solenoid valve 2 (232) and solenoid valve 3 (233) are exhaust solenoid valves. Solenoid valve 1 (231) and solenoid valve 3 (233) form one circuit, and solenoid valve 4 (234) and solenoid valve 2 (232) form another circuit. Solenoid valve 5 (235) is a pressure equalizing solenoid valve. The on / off states of the intake solenoid valves (solenoid valve 1 (231) and solenoid valve 4 (234)) are exactly opposite, and their opening and closing times are symmetrical and equal. The opening time of the exhaust solenoid valves (solenoid valve 2 (232) and solenoid valve 3 (233)) is shorter than that of the intake solenoid valves, and compared with the corresponding intake solenoid valves, they open later and close earlier. The operating cycle of the equalizing solenoid valve 5 is equal to the adsorption time of a single molecular sieve (i.e., half a cycle). When solenoid valve 5 235 is open, both the exhaust solenoid valves (soleoid valve 232 and solenoid valve 3 233) are closed. The closing of solenoid valve 5 235 occurs simultaneously with the opening of the exhaust solenoid valve. Simultaneously, based on the measurement parameters from sensor 32, the speed of the motor in the oil-free air compressor 22 is controlled, thereby achieving the goal of controlling the oxygen production flow rate.

[0060] After the hydrogen-oxygen generator is turned on, the independent oxygen production section is activated and its flow rate is controlled according to the required ratio to produce a mixed gas with an oxygen-to-hydrogen ratio greater than 1:2.

[0061] The generated mixed gas can be turned on or off by switching the atomizer 41 on or off as needed.

[0062] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A gas generating device with an adjustable hydrogen-to-oxygen ratio, characterized in that, The device includes a hydrogen-oxygen generator (1), an oxygen generator (2), and a control device (3). The hydrogen-oxygen generator (1) is used to generate hydrogen and oxygen in a 2:1 ratio. The oxygen generator (2) is used to generate oxygen with a concentration of 93% ± 3%. The control device (3) is used to control the flow rate of the hydrogen-oxygen generator (1) and the flow rate of the oxygen generator (2), thereby adjusting the output hydrogen-oxygen ratio. The oxygen generator (2) includes an air filter (21), an oil-free air compressor (22), a control valve group (23), a first molecular sieve (24), a second molecular sieve (25), a three-way valve (26), a fine sieve tower (27), and a third check valve (28). The air filter (21) is connected to the oil-free air compressor (22). The control valve group (23) is connected to the input and output ends of the first molecular sieve (24) and the second molecular sieve (25) through multiple control valves. The outputs of the first molecular sieve (24) and the second molecular sieve (25) are connected to a three-way valve (26), which merges into one channel and connects to the fine sieve tower (27). The fine sieve tower (27) is connected to a third check valve (28), which is connected to a sensor (32). The sensor (32) is connected to the atomizer (41). The control valve group (23) includes a solenoid valve one (231), a solenoid valve two (232), a solenoid valve three (233), a solenoid valve four (234), and a solenoid valve five (235). The solenoid valve one (231) and the solenoid valve four (234) are air intake solenoid valves. Solenoid valves two (232) and three (233) are exhaust solenoid valves, and solenoid valve five (235) is the control valve of the pressure equalization circuit. Solenoid valve one (231) is connected to the air inlet of the first molecular sieve (24), solenoid valve two (232) is connected to the exhaust port of the first molecular sieve (24), solenoid valve three (233) is connected to the air inlet of the second molecular sieve (25), solenoid valve four (234) is connected to the exhaust port of the second molecular sieve (25), and solenoid valve five (235) is connected to the output ends of the first molecular sieve (24) and the second molecular sieve (25). Between; the on and off states of solenoid valve one (231) and solenoid valve four (234) are exactly opposite, and the on and off times are symmetrical and equal; the on time of solenoid valve two (232) and solenoid valve three (233) is shorter than that of the intake solenoid valve, and compared with the corresponding intake solenoid valve, it is later on and earlier off; the action cycle of solenoid valve five (235) is equal to the adsorption time of a single molecular sieve, that is, half a cycle. When solenoid valve five (235) is on, solenoid valve two (232) and solenoid valve three (233) are both in the off state. The off state of solenoid valve five (235) is at the same time as the on state of the exhaust solenoid valve.

2. The gas generating device with adjustable hydrogen-to-oxygen ratio according to claim 1, characterized in that, The hydrogen-oxygen generating device (1) includes a water tank (11), a PEM hydrogen-oxygen generator (12), a hydrogen-water vapor separator (13), an oxygen-water vapor separator (14), a flame arrester (15), a first check valve (16), and a second check valve (17). The outlet of the water tank (11) is connected to the input end of the PEM hydrogen-oxygen generator (12). The hydrogen output end of the PEM hydrogen-oxygen generator (12) is connected to the hydrogen-water vapor separator (13), and the oxygen output end of the PEM hydrogen-oxygen generator (12) is connected to the oxygen-water vapor separator (14). The hydrogen-water vapor separator (13)... The output end is connected to a flame arrester (15), which is connected to a first one-way valve (16). The first one-way valve (16) is connected to an atomizer (41), which is connected to an atomizing cup (42). The output end of the oxygen-water vapor separator (14) is connected to a second one-way valve (17), which controls the output of oxygen. The second one-way valve (17) is connected to the atomizer (41). The liquid output of the hydrogen-water vapor separator (13) and the oxygen-water vapor separator (14) is connected to a water tank (11) to return the liquid to the water tank (11).

3. The gas generating device with adjustable hydrogen-to-oxygen ratio according to claim 2, characterized in that, When the hydrogen-oxygen generator (1) is turned on, the water tank (11) delivers water to the PEM hydrogen-oxygen generator (12). The PEM hydrogen-oxygen generator (12) electrolyzes the water to produce separated hydrogen and oxygen in a volume ratio of 2:

1. The hydrogen passes through the hydrogen-water vapor separator (13), and the oxygen passes through the oxygen-water vapor separator (14). The hydrogen-water vapor separator (13) and the oxygen-water vapor separator (14) separate the water vapor carried and return it to the water tank (11). The two parts of the gas are mixed in the atomizer (41) through the first one-way valve (16) and the second one-way valve (17) to form a hydrogen-oxygen mixture in a ratio of 2:

1.

4. The gas generating device with adjustable hydrogen-to-oxygen ratio according to claim 1, characterized in that, When the oxygen generator (2) is turned on, air passes through the air filter (21) and enters the oil-free air compressor (22). Driven by the oil-free air compressor (22), air enters the first molecular sieve (24) or the second molecular sieve (25). The first solenoid valve (231) and the third solenoid valve (233) form one circuit. When the first solenoid valve (231) and the third solenoid valve (233) are opened, the first molecular sieve (24) adsorbs and the second molecular sieve (25) desorbs. The third solenoid valve (233) and the fourth solenoid valve (234) form another circuit. When the third solenoid valve (233) and the fourth solenoid valve (234) are opened, the first molecular sieve (24) desorbs and the second molecular sieve (25) adsorbs. The gas passes through the sensor (32) and outputs an oxygen flow.

5. The gas generating device with adjustable hydrogen-oxygen ratio according to claim 2, characterized in that, The control device includes a main control board (31), a sensor (32), and a controllable constant current source (33). The power interface of the PEM hydrogen-oxygen generator (12) is connected to the controllable constant current source (33). The controllable constant current source (33), the oil-free air compressor (22), the control valve group (23), and the sensor (32) are electrically connected to the main control board (31). The sensor (32) includes a pressure sensor (321) and a flow concentration sensor (322). The main control board (31) collects the gas pressure and flow concentration detected by the sensor (32) to control the flow rate of the PEM hydrogen-oxygen generator (12), the power of the oil-free air compressor (22), and the switching of the control valve group (23).

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