阅读说明：本技术 一种电解质膜富氢空气制备装置 (Hydrogen-enriched air preparation device for electrolyte membrane ) 是由 綦戎辉 张立志 于 2021-08-20 设计创作，主要内容包括：本发明公开了一种电解质膜富氢空气制备装置,包括控制电路、内腔室以及设置在内腔室上的电解质膜电极,内腔室用于填充空气或其他不与氢气反应的气氛,定义内腔室外为环境侧,所述环境侧向外界环境敞开,电化学反应产生的氧直接排至外界环境；电解质膜电极包括电解阳极板、电解质膜和电解阴极板,电解阳极板位于环境侧,电解阴极板位于内腔室,电解质膜电极和电解阴极板分别与控制电路的正极和负极连接,工作时,在电解阳极板上发生电解水反应,在电解阴极板上发生析氢反应。该装置利用电解质膜两侧的电化学反应制备富氢空气,无需水源,无纯氢产生,安全可靠；电化学反应产生的氧排至外界环境,不会导致因氧化作用而产生任何毒副作用。(The invention discloses a hydrogen-enriched air preparation device of an electrolyte membrane, which comprises a control circuit, an inner chamber and an electrolyte membrane electrode arranged on the inner chamber, wherein the inner chamber is used for filling air or other atmospheres which do not react with hydrogen, the inner chamber is defined as an environment side, the environment side is open to the external environment, and oxygen generated by electrochemical reaction is directly discharged to the external environment; the electrolyte membrane electrode comprises an electrolyte anode plate, an electrolyte membrane and an electrolyte cathode plate, the electrolyte anode plate is positioned on the environment side, the electrolyte cathode plate is positioned in the inner chamber, the electrolyte membrane electrode and the electrolyte cathode plate are respectively connected with the anode and the cathode of the control circuit, and during work, electrolytic water reaction occurs on the electrolyte anode plate, and hydrogen evolution reaction occurs on the electrolyte cathode plate. The device utilizes the electrochemical reaction on the two sides of the electrolyte membrane to prepare the hydrogen-rich air, does not need water source, does not generate pure hydrogen, and is safe and reliable; oxygen generated by the electrochemical reaction is discharged to the external environment, and any toxic and side effect caused by oxidation cannot be caused.)

1. The device for preparing the hydrogen-rich air of the electrolyte membrane is characterized by comprising a control circuit, an inner chamber (3) and an electrolyte membrane electrode (1) arranged on the inner chamber (3), wherein the inner chamber (3) is used for filling air or other atmosphere which does not react with hydrogen,

the environment side (2) is defined outside the inner chamber (3), the electrolyte membrane electrode (1) comprises an electrolyte anode plate (4), an electrolyte membrane (5) and an electrolyte cathode plate (6), the electrolyte anode plate (4) is positioned on the environment side (2), the electrolyte cathode plate (6) is positioned in the inner chamber (3), the electrolyte membrane electrode (1) and the electrolyte cathode plate (6) are respectively connected with the anode and the cathode of the control circuit, during work, electrolytic water reaction occurs on the electrolyte anode plate (4), and hydrogen evolution reaction occurs on the electrolyte cathode plate (6).

2. A membrane hydrogen rich air production device according to claim 1, further comprising a housing (11), wherein the environment side (2), the membrane electrode (1) and the inner chamber (3) are disposed within the housing (11).

3. The device for preparing electrolyte membrane hydrogen-rich air according to claim 1, wherein the control circuit comprises a low-voltage direct current power supply (7), the electrolytic anode plate (4) is connected with the positive pole of the low-voltage direct current power supply (7), and the electrolytic cathode plate (6) is connected with the negative pole of the low-voltage direct current power supply (7).

4. An electrolyte membrane hydrogen-rich air producing device according to claim 1, further comprising a hydrogen concentration sensor (8) connected to the control circuit, the hydrogen concentration sensor (8) being configured to measure the concentration of hydrogen in the inner chamber (3).

5. The device for preparing the electrolyte membrane hydrogen-rich air according to claim 4, further comprising an air supply path and an air supply valve (9) arranged on the air supply path, wherein the air supply valve (9) is connected with the control circuit and is used for controlling the air supply to the inner chamber (3) through the air supply path or other atmospheres which do not react with hydrogen.

6. An electrolyte membrane hydrogen-enriched air production device according to claim 1, further comprising gas circulation means and a storage space (12), the storage space (12) communicating with the inner chamber (3) through the gas circulation means to introduce hydrogen-enriched air into the storage space (12).

7. The electrolyte membrane hydrogen-enriched air preparation device according to claim 6, further comprising a first temperature and humidity sensor (17) and a refrigerating device (18) for adjusting the temperature and humidity of the gas in the inner chamber (3), wherein the refrigerating device (18) is located at one side of the storage space (12), and the first temperature and humidity sensor (17) is arranged between the storage space (12) and the inner chamber (3).

8. An electrolyte membrane hydrogen-enriched air preparation device according to claim 1, further comprising a second temperature and humidity sensor (21) and a heating device (20), wherein the second temperature and humidity sensor (21) and the heating device (20) are both arranged on the inner chamber (3) to regulate the gas temperature in the inner chamber (3).

9. An electrolyte membrane hydrogen-rich air producing device according to claim 1, further comprising a breather valve (19), the breather valve (19) being provided on the inner chamber (3).

10. The electrolyte membrane hydrogen-rich air producing device as claimed in any one of claims 1 to 9, wherein the hydrogen concentration of the hydrogen-rich air in the inner chamber (3) is 0.0000001% to 4%.

Technical Field

The invention belongs to the technical field of preparation of hydrogen-rich air, and particularly relates to a hydrogen-rich air preparation device of an electrolyte membrane.

Background

With the development of science and technology and the continuous improvement of life quality, scientists and manufacturers increasingly pay attention to the application of hydrogen-rich air in the fields of food or fresh cut flower preservation, hydrogen-rich food preparation, human health care and the like. The hydrogen is a diatomic gas molecule, is colorless and transparent, odorless and tasteless, and has great industrial and energy values. Scientific research shows that the corrosion of fruits and vegetables can be accelerated due to the phenomena of ethylene release amount increase, endogenous hydrogen generation decrease and the like of various fruits and vegetables or fresh flowers during storage, transportation and shelf life; and the storage period of fruits and vegetables can be prolonged by adding low-concentration hydrogen or using hydrogen-rich water to adjust the oxidation resistance of the organism. In addition, medical research proves that the oxygen breathed by a human body and various nutrient substances are taken to generate required energy, and simultaneously, excessive active oxygen free radicals are also generated, and are probably the root cause of human diseases. And the low-concentration hydrogen molecules enter a human body to form active hydrogen, and the active hydrogen and active oxygen radicals are subjected to neutralization reaction, so that the number of the active oxygen radicals can be reduced, and the medical health care effect is achieved. Therefore, the low-concentration hydrogen is expected to become one of new means for fruit and vegetable preservation and human health care. In the prior art, hydrogen-rich water is prepared in an electrolysis mode. Chinese granted patent CN102408147B discloses a method for producing hydrogen-rich water, and chinese granted patent CN 106086927B discloses a hydrogen-rich food preparation machine, the principle of which is to produce hydrogen in a closed container by electrolyzing water and then add water, but the water production efficiency is low (typically, the obtained hydrogen-rich water has a maximum hydrogen content of only 1.65ppm), and the discharged redundant hydrogen has hidden troubles of combustion and explosion. Hydrogen enrichment has also received increased attention due to higher hydrogen content and the lack of a water source. Chinese patent application CN107373279A discloses a method for mixing hydrogen with carbon dioxide, water vapor and oxygen for fresh keeping of gastrodia elata, and chinese patent application CN111406789A discloses a method for mixing hydrogen with carbon dioxide for fresh keeping of poultry eggs, but these methods have high cost, complicated equipment, easy escape of hydrogen bottles during transportation, and large potential safety hazard.

Related researches for preparing hydrogen-rich air based on an electrolyte membrane and applying the hydrogen-rich air to the fields of fruit and vegetable preservation, human body health care and the like do not appear in the prior art, and the requirements of people on the hydrogen-rich air in daily life cannot be met.

Disclosure of Invention

The invention aims to provide a hydrogen-rich air preparation device based on an electrolyte membrane, aiming at overcoming the defects of the prior art, the hydrogen-rich air is prepared safely and portably by utilizing electrochemical reaction, the device is simple and compact in structure, is driven by 2-6V low-voltage direct current, does not need to discharge or transport pure hydrogen, and does not have any potential safety hazard and toxic or side effect.

In order to achieve the purpose of the invention, the electrolyte membrane-based hydrogen-rich air preparation device comprises an electrolyte membrane hydrogen-rich air preparation device, a control circuit, an inner chamber and an electrolyte membrane electrode arranged on the inner chamber, wherein the inner chamber is used for filling air or other atmosphere which does not react with hydrogen,

defining an inner cavity as an environment side, wherein the environment side is open to the external environment, and oxygen generated by electrochemical reaction is directly discharged to the external environment; the electrolyte membrane electrode comprises an electrolyte anode plate, an electrolyte membrane and an electrolyte cathode plate, the electrolyte anode plate is positioned on the environment side, the electrolyte cathode plate is positioned in the inner chamber, the electrolyte membrane electrode and the electrolyte cathode plate are respectively connected with the anode and the cathode of the control circuit, and during work, electrolytic water reaction occurs on the electrolyte anode plate, and hydrogen evolution reaction occurs on the electrolyte cathode plate.

The electrolytic anode plate is arranged at the environment side, the control circuit is communicated during operation, water vapor in the ambient air is electrolyzed to generate hydrogen protons and oxygen, the hydrogen protons pass through the electrolyte membrane to reach the electrolytic cathode plate, and the oxygen is discharged to the external environment; the hydrogen protons generate hydrogen evolution reaction at the electrolytic cathode plate to generate hydrogen-rich gas, and the hydrogen-rich gas can be directly applied to the fields of fruit and vegetable fresh-keeping, human body health care and the like or can be selectively applied to the fields through a gas circulating device.

Further, the electrolyte membrane electrode assembly further comprises a shell, and the environment side, the electrolyte membrane electrode and the inner chamber are all arranged in the shell.

Further, the electrolytic anode plate and the electrolytic cathode plate comprise screens or pore plates, and the materials are selected from metals or carbon fibers; the electrolyte membrane has a proton conduction function, and the material is selected from Nafion solution, trifluorostyrene phosphide or hydrocarbon polymer; and oxygen evolution catalysts and hydrogen evolution catalysts are respectively loaded on two sides of the electrolyte membrane, and the materials are selected from Ir, IrO2, Ru or Pt.

The low-voltage direct current power supply is connected with the control circuit and provides 2-6V low-voltage direct current for normal operation of the device;

further, the hydrogen-gas concentration measuring device further comprises a hydrogen-gas concentration sensor connected with the control circuit, and the hydrogen-gas concentration sensor is used for measuring the concentration of hydrogen gas in the inner cavity. The gas supplementing device also comprises a gas supplementing circuit and a gas supplementing valve arranged on the gas supplementing circuit, is connected with the gas supplementing valve and the control circuit and is used for controlling the supplement of air or other atmospheres which do not react with hydrogen to the inner cavity through the gas supplementing circuit. The hydrogen concentration sensor is arranged and linked with the control circuit, and when the hydrogen concentration continuously exceeds the set concentration range during operation, the control circuit is cut off, and meanwhile, the gas is supplemented through the gas supplementing valve to quickly reduce the hydrogen concentration.

Further, the hydrogen concentration of the hydrogen-rich air is 0.0000001% -4%.

Further, the inner chamber can be optionally provided with a gas circulation device and a storage space, the storage space is communicated with the inner chamber through the gas circulation device so as to lead the hydrogen-enriched air into the storage space, and the storage space can be a food material storage device or a human body health care device. Specifically, the hydrogen-enriched air in the inner cavity can be applied to a sealed bag or a sealed box for storing food materials or food such as fruits and vegetables or applied to a human health care device such as a gas cylinder and a respirator through the gas circulation device.

Furthermore, the refrigerating device is positioned on one side of the storage space, and the first temperature and humidity sensor is arranged between the storage space and the inner chamber.

Further, still include second temperature and humidity sensor and heating device, second temperature and humidity sensor and heating device all set up on interior cavity with the gas temperature in the regulation intracavity.

Further, the breather valve is arranged on the inner chamber.

Furthermore, the working state of the device comprises a preparation mode and an application mode, and the control circuit controls the switching, and the two modes are respectively carried out or simultaneously carried out.

Furthermore, in the preparation mode, a low-voltage direct-current power supply supplies power to the electrolyte membrane electrode through the control circuit; in the environment side, water vapor in the environment air generates electrolytic water reaction 2H on the surface of the electrolytic anode plate₂O→4H⁺+O₂+4e^-Generation of H⁺The oxygen passes through the electrolyte membrane to reach the electrolytic cathode plate of the inner chamber, and the generated oxygen is directly discharged to the external environment; in the inner chamber, H⁺The hydrogen evolution reaction 2H is carried out on the surface of the electrolytic cathode plate⁺+2e^-→H₂The hydrogen content of the air contained in the inner chamber rises; as the production mode proceeds, the hydrogen content of the air in the inner chamber is increased until hydrogen-enriched air of the desired concentration is obtained.

Furthermore, in the application mode, the inner chamber is provided with a gas circulation device to apply the hydrogen-enriched air in the inner chamber to a sealed bag or a sealed box for storing food materials or food such as fruits and vegetables or to a human body health care device such as a gas cylinder, a gas bag or a respirator, or the inner chamber is directly used as a storage place or directly used for human body suction.

Compared with the prior art, the invention has at least the following beneficial effects:

(1) the device takes ubiquitous ambient air as a raw material, utilizes the electrolyte membrane electrode to prepare hydrogen-rich air by means of electrochemical reaction, does not need water source, does not generate pure hydrogen, does not generate harmful substances, and is green, environment-friendly, safe and reliable.

(2) Oxygen generated by the electrochemical reaction is discharged to the external environment, and any toxic and side effect caused by oxidation cannot be caused.

(3) The device has simple and compact structure and small size of several cm³The device has no moving part and no fixed equipment, and is simple to manufacture and good in portability.

(4) The preparation process only needs 2-6V low-voltage direct current, has wider operable temperature, and can normally operate at high temperature (>40 ℃) and low temperature (<0 ℃).

(5) The application range is wide, and the air-conditioning sealing bag can be widely applied to air-conditioning sealing bags or sealing boxes for storing food materials such as fruits and vegetables or food (the food materials can be prevented from contacting water or other liquid), or applied to fresh cut flower preservation, or applied to human health care devices such as gas cylinders and respirators, or the inner chamber is directly used as a gas storage place or directly inhaled by a human body.

Drawings

For a more complete description of the embodiments of the present invention or solutions in the prior art, the accompanying drawings illustrate by way of example specific details and embodiments in which the invention may be practiced.

Fig. 1 is a schematic diagram of a hydrogen-rich air production apparatus based on an electrolyte membrane electrode.

FIG. 2 is a schematic diagram of a hydrogen-enriched air preparation device for keeping food such as fruits and vegetables fresh in the embodiment of the invention.

FIG. 3 is a schematic diagram of a hydrogen-enriched air preparation device for human health care according to an embodiment of the present invention.

Detailed Description

The technical solution of the present invention will be clearly and completely described below with reference to the embodiments and the accompanying drawings, but the present invention is not limited thereto. It is to be expressly understood that the drawings in the following description are of exemplary embodiments of the invention only and are not intended as preferred or advantageous over other embodiments or designs.

It should be noted that different features (e.g., elements, structures, modules, steps, operations, characteristics, etc.) included in the embodiments mentioned in the present specification are to be understood as meaning that these features can be included in one or more embodiments of the present invention and also can be or are not necessarily combined in the embodiments.

It is to be noted that "a plurality" mentioned in the present specification may refer to one or more.

Example 1

Referring to fig. 1, the device for preparing hydrogen-rich air of an electrolyte membrane provided by the embodiment includes a control circuit, an environment side 2 and an inner chamber 3 separated by an electrolyte membrane electrode 1, wherein the environment side 2 is used for being connected with an external environment, and the inner chamber 3 is used for being filled with air or other atmosphere which does not react with hydrogen.

Wherein the control circuit, the environmental side 2 separated by the membrane electrode 1 and the inner chamber 3 are all arranged in the housing 11 to provide safety in use and to improve the service life.

The electrolyte membrane electrode 1 comprises an electrolytic anode plate 4, an electrolyte membrane 5 and an electrolytic cathode plate 6 which are arranged in sequence from the environment side 2 to the inner cavity side 3; the electrolytic anode plate 4 and the electrolytic cathode plate 6 are respectively connected with the anode and the cathode of the control circuit 7.

The low-voltage direct-current power supply 7 is connected with the control circuit 10 and provides 2-6V low-voltage direct current for the operation of the device.

Further, the hydrogen concentration of the hydrogen-rich air is 0.0000001% -4%.

Further, the electrolytic anode plate 4 and the electrolytic cathode plate 6 both comprise a screen or a pore plate, and the materials are both selected from metals or carbon fibers; the electrolyte membrane 5 has a proton conduction function, and the material is selected from Nafion solution; the two sides of the electrolyte membrane 5 are respectively loaded with an oxygen evolution catalyst and a hydrogen evolution catalyst, and the materials are selected from Ir and IrO₂Ru or Pt.

In the hydrogen-enriched air preparation device of the electrolyte membrane provided by the embodiment, water vapor in ambient air is electrolyzed on the electrolytic anode plate 4 to generate hydrogen protons and oxygen, the hydrogen protons pass through the electrolyte membrane 5 to reach the electrolytic cathode plate 6, and the electrolytic cathode plate 6 generates hydrogen evolution reaction to generate hydrogen-enriched air with required concentration. The ubiquitous ambient air is used as a raw material, the electrolyte membrane electrode electrochemical reaction is utilized to directly prepare the hydrogen-rich air, no pure hydrogen is generated, the price is low, and the method is safe and reliable; oxygen generated by electrochemical reaction is directly discharged to the external environment, no toxic or side effect is caused due to oxidation, and the size of the device can be as small as several cm³The structure is simple and compact, and the portability is good.

Example 2

The embodiment is an implementation mode of applying the electrolyte membrane hydrogen-rich air preparation device to the field of fruit and vegetable or food preservation.

Referring to fig. 1, the hydrogen-enriched air preparation device of the electrolyte membrane provided by the embodiment includes a control circuit, an environment side 2 and an inner chamber 3 separated by an electrolyte membrane electrode 1, wherein the environment side 2 is open to the external environment, and oxygen generated by electrochemical reaction is directly discharged to the external environment.

The inner chamber 3 is filled with air or other atmosphere that does not react with hydrogen.

Wherein the control circuit, the environmental side 2 separated by the membrane electrode 1 and the inner chamber 3 are all arranged in the housing 11 to provide safety in use and to improve the service life.

The electrolyte membrane electrode 1 comprises an electrolytic anode plate 4, an electrolyte membrane 5 and an electrolytic cathode plate 6 which are arranged in sequence from the environment side 2 to the inner cavity side 3; the electrolytic anode plate 4 and the electrolytic cathode plate 6 are respectively connected with the anode and the cathode of the control circuit 7.

The low-voltage direct-current power supply 7 is connected with the control circuit 10 and provides 2-6V low-voltage direct current for the operation of the device.

Further, the hydrogen concentration of the hydrogen-rich air is 0.0000001% -4%.

Further, still include hydrogen concentration sensor 8, tonifying qi way and set up gulp valve 9 on tonifying qi way, hydrogen concentration sensor 8 is arranged in measuring the concentration of hydrogen in interior chamber 3, and hydrogen concentration sensor 8 and gulp valve 9 all are connected with control circuit 10. When the hydrogen concentration in the inner chamber 3 continuously exceeds the set range, the control circuit 10 cuts off the low-voltage direct-current power supply 7, and simultaneously opens the gas supplementing valve 9 to supplement gas to the inner chamber 3 so as to rapidly reduce the hydrogen concentration.

The working state of the device of the embodiment comprises a preparation mode and an application mode, and the switching is controlled by the control circuit, and the two modes are respectively carried out or simultaneously carried out.

In the preparation mode, the control circuit 10 turns on the low-voltage direct-current power supply 7, water vapor in the ambient air is electrolyzed on the surface of the electrolytic anode plate 4 positioned on the ambient side to generate hydrogen protons and oxygen, the hydrogen protons pass through the electrolyte membrane 5 to reach the electrolytic cathode plate 6 arranged in the inner chamber 3, and the hydrogen protons generate hydrogen evolution reaction on the surface of the electrolytic cathode plate 6 during operation to generate hydrogen-rich gas.

Optionally, in the application mode, the inner chamber 3 may serve as a sealed storage space for directly storing food materials such as fruits, vegetables or cut flowers, and the process may be performed continuously or discontinuously.

Specifically, for perishable fruits such as kiwi fruits and the like, hydrogen-rich air (0.0000001% -4%) is adopted for closed storage for 0-2 days after picking, and then hydrogen-rich air (0.0000001% -4%) is adopted for closed storage for 0-2 days after conventional or low-temperature storage or transportation for 0-5 days, so that the fruit aging and deterioration can be slowed down, and the shelf life of the kiwi fruits can be prolonged for 0-10 days.

Specifically, for fresh cut flowers such as carnation and the like, hydrogen-rich air (0.0000001% -4%) is adopted for closed storage for 0-2 days after picking, and then the fresh cut flowers are stored or transported at normal or low temperature, so that the appreciation of the fresh cut flowers can be enhanced, and the flowering period can be prolonged for 0-10 days.

Example 3

Basically the same as embodiment 2, except that the present embodiment is further provided with a gas circulation device, a storage space 12, a first temperature and humidity sensor 17, and a refrigeration device 18.

Referring to fig. 2, in the present embodiment, the storage space 12 is communicated with the inner chamber 3 through a gas circulation device to introduce hydrogen-rich air into the storage space. Wherein, the gas circulating device comprises a gas valve 13, an air pump 14 and a hose 15, the inner chamber 3 and the storage space 12 are connected through the hose 15, and the gas valve 13 and the air pump 14 are arranged on the hose 15.

Optionally, in the application mode, the hydrogen-rich air in the inner chamber 3 is pumped out by a gas circulation device and filled into the sealable storage space 12 (such as a sealed bag or a sealed box) for storing food such as fruits, vegetables or cut flowers, which can be continuously or discontinuously performed.

Optionally, a first temperature and humidity sensor 17 is disposed at an outlet of the sealable storage space 12, and the storage space 12 is connected to a refrigerating device 18, so as to adjust the temperature and humidity of the gas in the inner chamber by a condensing and refrigerating method.

Example 4

Referring to fig. 3, the hydrogen-enriched air preparation device of the electrolyte membrane provided by the present embodiment includes a control circuit, an environment side 2 and an inner chamber 3 separated by an electrolyte membrane electrode 1, wherein the environment side 2 is open to the external environment, and oxygen generated by electrochemical reaction is directly discharged to the external environment.

The inner chamber 3 is filled with air or other atmosphere that does not react with hydrogen.

Wherein the control circuit, the environmental side 2 separated by the membrane electrode 1 and the inner chamber 3 are all arranged in the housing 11 to provide safety in use and to improve the service life.

The electrolyte membrane electrode 1 comprises an electrolytic anode plate 4, an electrolyte membrane 5 and an electrolytic cathode plate 6 which are arranged in sequence from the environment side 2 to the inner cavity side 3; the electrolytic anode plate 4 and the electrolytic cathode plate 6 are respectively connected with the anode and the cathode of the control circuit 7.

The low-voltage direct-current power supply 7 is connected with the control circuit 10 and provides 2-6V low-voltage direct current for the operation of the device.

Further, the hydrogen concentration of the hydrogen-rich air is 0.0000001% -4%.

Further, the electrolytic anode plate 4 and the electrolytic cathode plate 6 comprise a screen or a pore plate, and the materials are selected from metal or carbon fiber; the electrolyte membrane 5 has a proton conduction function, and the material is selected from Nafion solution; the two sides of the electrolyte membrane 5 are respectively loaded with an oxygen evolution catalyst and a hydrogen evolution catalyst, and the materials are selected from Ir and IrO₂Ru or Pt.

Further, still include hydrogen concentration sensor 8, tonifying qi way and set up gulp valve 9 on tonifying qi way, hydrogen concentration sensor 8 is arranged in measuring the concentration of hydrogen in interior chamber 3, and hydrogen concentration sensor 8 and gulp valve 9 all are connected with control circuit 10. When the hydrogen concentration in the inner chamber 3 continuously exceeds the set range, the control circuit 10 cuts off the low-voltage direct-current power supply 7, and simultaneously opens the gas supplementing valve 9 to supplement gas to the inner chamber 3 so as to rapidly reduce the hydrogen concentration.

Further, a breather valve 19 is also provided on the inner chamber 3.

Further, the gas temperature control device further comprises a second temperature and humidity sensor 21 and a heating device 20, wherein the second temperature and humidity sensor 21 and the heating device 20 are both arranged on the inner chamber 3 to regulate the temperature of the gas in the inner chamber 3

The working state of the device of the embodiment comprises a preparation mode and an application mode, and the switching is controlled by the control circuit, and the two modes are respectively carried out or simultaneously carried out.

In the application mode, a human body can directly inhale hydrogen-rich air in the inner chamber 3 by adopting the breather valve 19 to play a health care role, and the process can be continuously or discontinuously carried out;

in the preparation mode, a control circuit 10 starts a low-voltage direct-current power supply, water vapor in the ambient air is electrolyzed on the surface of the electrolytic anode plate 4 on the ambient side to generate hydrogen protons and oxygen, the hydrogen protons pass through the electrolyte membrane 5 to reach the electrolytic cathode plate 6 arranged in the inner chamber 3, and the oxygen is discharged to the external environment; when in operation, hydrogen protons generate hydrogen evolution reaction on the surface of the electrolytic cathode plate 6 to generate hydrogen-rich gas.

Alternatively, in the application mode, the hydrogen-rich air in the inner chamber is pumped out by the gas circulation device and filled into the sealable storage space 12 (such as a sealed gas cylinder and a gas bag) for human body inhalation and health care, and the process can be continuously or discontinuously carried out.

Optionally, the second temperature and humidity sensor 17 and the heating device 20 arranged in the inner chamber 3 are used for adjusting the temperature of the gas in the inner chamber to adapt to the requirements of the human body.

Specifically, aiming at the health care of athletes, low-concentration hydrogen-rich air (0-1000 mL) is sucked after the athletes exercise every day, and the hydrogen-rich air is continuously sucked for 0-100 days, so that the antioxidant enzyme activity of the organisms can be improved, and the oxidative stress injury of the athletes in high-intensity exercise can be effectively relieved;

specifically, aiming at the health care of common people, low-concentration hydrogen-rich air (0-1000 mL) is inhaled after meal or before sleep every day for 0-100 days continuously, so that the oxidation resistance can be enhanced to a certain extent, the fatigue is relieved, and the immunity is improved.

It should be apparent that the description is only of some embodiments of the invention, and other alternatives, modifications, and equivalents, which may be obtained according to the invention without inventive effort by those skilled in the art, are within the scope of the present invention.