A portable hydrogen respirator using aluminum-water reaction to produce hydrogen as a hydrogen source and a hydrogen production method thereof

Abstract

The present invention specifically discloses a portable hydrogen respirator using aluminum water reaction to produce hydrogen as a hydrogen source and a hydrogen production method thereof. The hydrogen respirator comprises a reaction tank, a condenser tank, a connecting pipe and a hydrogen suction nozzle. A feeding port is provided on the top of the reaction tank to add a raw material package and a reaction liquid, and the raw material package and the reaction liquid react to produce hydrogen in the reaction tank; a water inlet is provided on the top of the condenser tank to add a condensate; one end of the connecting pipe is connected to the upper part of the side of the reaction tank, and the other end extends into the condenser tank and then extends downward to the bottom of the condenser tank and is immersed in the condensate; the hydrogen suction nozzle is connected to the upper part of the side of the condenser tank through the condenser tank air guide pipe. When producing hydrogen, the condensate is added to the condenser tank from the water inlet, and the raw material package is added to the reaction tank from the feeding port. The hydrogen respirator does not require a power supply, has a compact structure, a small size, good portability, and its hydrogen production rate is stable and controllable, and it is safe and reliable to use.

Description

Technical Field

[0001] The present invention relates to the technical field of respirators, and in particular to a portable hydrogen respirator which uses aluminum-water reaction to produce hydrogen as a hydrogen source and a hydrogen production method thereof. Background Art

[0002] In 1975, Dole et al. published an article in Science stating that they found that high-pressure hydrogen can effectively inhibit tumor growth in mice with squamous cell carcinoma, and proposed the possibility of hydrogen therapy for cancer treatment. In 2007, Professor Shigeo Ohta of Japan Medical University reported in Nature Medicine the selective antioxidant mechanism of hydrogen treatment for ischemia-reperfusion injury and inflammation, which promoted the rapid development of hydrogen biology and medicine. Over the next decade, people found that hydrogen has therapeutic effects on a variety of oxidative stress / inflammatory related diseases, including cancer, atherosclerosis, ischemia-reperfusion injury, stroke, diabetes, neurodegenerative diseases, arthritis, dermatitis, colitis, hepatitis and pancreatitis. Hydrogen therapy has received increasing attention for its high safety and broad-spectrum effectiveness, and is undergoing an important evolution from research to clinical application. The effectiveness of hydrogen therapy has been verified by more than 50 clinical trials. Hydrogen is an endogenous gas transfer medium in the human body and has been used as an additive to divers' breathing gas for decades. It has been proven to have no obvious systemic toxicity, so the safety of hydrogen to the human body can be guaranteed. Hydrogen is also a food additive approved by the Food and Drug Administration of the United States and China.

[0003] In this context, hydrogen medical products such as hydrogen-rich water and hydrogen respirators are gradually entering the market. Among them, hydrogen respirators can be mainly divided into two types according to different hydrogen production methods. One is a hydrogen respirator that uses water electrolysis to produce hydrogen as a hydrogen source. At present, most hydrogen respirator products on the market are of this type. Its advantages are stable and easy to control hydrogen production, and its disadvantages are high cost and need for power supply, such as the anti-dumping intelligent hydrogen respirator disclosed in patent CN201921104088.6 and the portable hydrogen respirator disclosed in patent CN201920455639.7; the second is a hydrogen respirator that uses chemical reaction to produce hydrogen as a hydrogen source. Its advantages are low cost and disadvantages are that the hydrogen release reaction is difficult to control, such as a hydrogen respirator based on the hydrolysis reaction of hydrides (CaH2, NaBH4, etc.) disclosed in patent 201621137171.X and a hydrogen respirator that uses NaBH4 hydrolysis or alcoholysis as a hydrogen source disclosed in patent 201910719967.8.

[0004] Studies have shown that hydrogen therapy is most effective when the human body absorbs air containing 2% hydrogen. This low concentration of hydrogen does not pose a risk of combustion or explosion. The corresponding hydrogen flow rate of the hydrogen ventilator is 300 mL min -1The hydrogen flow rate provided by hydrogen respirators that produce hydrogen by electrolysis of water on the market is generally relatively stable at 300 mL min -1 or 600 mL min -1 (Two-player mode). Metal hydrides (such as CaH2) react violently with water and are difficult to control. Although the production of hydrogen by hydrolysis or alcoholysis of NaBH4 is relatively stable, the Material Safety Data Sheet (MSDS) of NaBH4 shows that the chemical strongly irritates the mucous membranes, upper respiratory tract, eyes and skin, corrodes the digestive tract orally, and has an acute toxicity (LD50) of 18 mg / kg (rat intraperitoneal cavity). NaBH4 is easily soluble in water and is more likely to be accidentally ingested by the human body. In addition, the prices of metal hydrides and NaBH4 are still relatively high. Summary of the invention

[0005] One of the purposes of the present invention is to solve the above-mentioned technical problems and provide a portable hydrogen respirator using aluminum-water reaction to produce hydrogen as a hydrogen source. The hydrogen respirator does not require a power supply, has a compact structure, a small size, good portability, and its hydrogen production rate is stable and controllable, making it safe and reliable to use.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A portable hydrogen breathing machine using aluminum-water reaction to produce hydrogen as a hydrogen source, comprising

[0008] A reaction tank, wherein a feeding port is provided on the top of the reaction tank for adding a raw material package and a reaction liquid, and the raw material package and the reaction liquid undergo a hydrogen production reaction in the reaction tank;

[0009] A condensation tank, wherein a water inlet is provided on the top of the condensation tank for adding condensate;

[0010] A connecting pipe, one end of which is connected to the upper side of the reaction tank, and the other end of which extends into the condensation tank and then extends downward to the bottom of the condensation tank and is immersed in the condensate;

[0011] A hydrogen suction nozzle is connected to the upper side of the condensing tank through the condensing tank air guide pipe.

[0012] Specifically, the condensation tank includes an outer sleeve, an inner sleeve sleeved in the outer sleeve, and an annular sleeve cover sealed between the outer sleeve and the inner sleeve; the reaction tank is placed in the inner sleeve, and the feed port of the reaction tank is sealed by a circular tank cover.

[0013] Specifically, the annular sleeve cover is threadedly connected to the outer sleeve and the inner sleeve; the circular tank cover is threadedly connected to the feed port of the reaction tank.

[0014] More specifically, a heat insulating fixing layer is provided between the inner sleeve and the reaction tank.

[0015] Furthermore, the raw material includes a non-woven fabric bag and aluminum raw material powder wrapped in the non-woven fabric bag.

[0016] Furthermore, the aluminum raw material powder includes a mixed powder of aluminum, quicklime, sodium carbonate, sodium alginate or sodium carboxymethyl cellulose.

[0017] Furthermore, in the mixed powder, the mass ratio of aluminum, quicklime, sodium carbonate, sodium alginate or sodium carboxymethyl cellulose is 1:1~2:0.1~2:0.1~1.

[0018] As a preferred embodiment, the condensate and the reaction liquid are any one of tap water, mineral water and distilled water.

[0019] In addition, another object of the present invention is to provide a method for producing hydrogen for the above-mentioned portable hydrogen respirator. When this method is used to produce hydrogen, the hydrogen production rate is stable and controllable, and the use is safe and reliable.

[0020] A method for producing hydrogen for the above-mentioned portable hydrogen respirator comprises the following steps: adding condensate into a condensation tank from a water inlet and tightening a ring-shaped barrel cover; adding a raw material package into a reaction tank from a feed inlet and tightening a circular tank cover; the mixed powders in the raw material package react with each other, and the generated gas enters the condensation tank through a connecting pipe, and after condensation, is provided to people for hydrogen inhalation through a hydrogen inhalation nozzle.

[0021] The preparation method of the raw material package is as follows: first weigh aluminum, quicklime, sodium carbonate, sodium alginate or sodium carboxymethyl cellulose in a ratio of 1:1~2:0.1~2:0.1~1, then mix and grind for 5~10 minutes, and then put into a non-woven bag for sealing.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] Compared with the hydrogen respirator which uses water electrolysis to produce hydrogen as the hydrogen source, the hydrogen respirator of the present invention does not need to use power supply, so the cost will be reduced, the overall volume is greatly reduced, and the place of use is not limited. On the other hand, the reaction tank and the condensation tank of the present invention are sleeved, and the overall shape is cylindrical, with only a feeding port on the top. The overall structure is compact, and the size is greatly reduced compared with the existing respirator. The space it occupies is greatly reduced, it is more portable, and its universality is stronger; in addition, the hydrogen respirator of the present invention does not have high requirements on the purity of water, and can also reduce costs, and the sources of reaction liquid and condensate are wider and more convenient to obtain.

[0024] (2) Compared with other hydrogen respirators that use chemical reactions to produce hydrogen as a hydrogen source, the hydrogen respirator of the present invention uses quicklime (CaO) and soda ash (Na2CO3), which are also widely used in life, to produce an alkaline aqueous solution, which reacts with aluminum to produce hydrogen. Aluminum (Al) is widely used in life, and the reaction between aluminum and alkaline aqueous solution can produce hydrogen relatively stably. The entire raw material powder is food-grade raw material and the hydrogen production rate is more stable and controllable. Compared with existing products, it has significant advantages in terms of cost, safety and convenience.

[0025] (3) The hydrogen production rate of the hydrogen respirator of the present invention can be controlled by adjusting the composition of the hydrogen production raw materials, such as 300 mL min -1 Suitable for hydrogen-assisted medical treatment, 100 mL min -1 It is suitable for hydrogen-assisted beauty and health care. The hydrogen production rate is controlled by adjusting the raw material components. Compared with the current electronic control system or manual valve to control the feed amount, it has higher accuracy, lower cost, more applicable scenarios, fewer restrictions, and is more suitable in emergency situations. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the hydrogen breathing machine of the present invention;

[0027] Figure 2 The hydrogen production rate curve of the hydrogen breathing machine of Example 1 is shown;

[0028] Figure 3 The hydrogen production rate curve of the hydrogen breathing machine of Example 2 is shown;

[0029] Figure 4 This is a curve diagram of the hydrogen production rate of the hydrogen respirator of Example 4.

[0030] The names corresponding to the reference numerals are:

[0031] 1-reaction tank, 2-condensation tank, 3-insulation fixing layer, 4-feeding port, 5-water adding port, 6-connecting pipe, 7-condensation tank air guide pipe, 8-hydrogen absorption nozzle. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The embodiments of the present invention include but are not limited to the following embodiments.

[0033] This embodiment provides a portable hydrogen respirator that uses aluminum-water reaction to produce hydrogen as a hydrogen source. The use of aluminum-water reaction to produce hydrogen has a more compact structure, a more controllable hydrogen production rate, and is more portable and applicable to more scenarios. Aluminum (Al) is widely used in life, and the reaction of aluminum and alkaline aqueous solution can produce hydrogen relatively smoothly. This embodiment uses quicklime (CaO) and soda ash (Na2CO3), which are also widely used in life, to produce an alkaline aqueous solution, which reacts with aluminum to produce hydrogen, and uses it as a hydrogen source to design a portable hydrogen respirator. Compared with existing products, this hydrogen respirator has significant advantages in cost, safety, and convenience.

[0034] Specifically, see Figure 1 The hydrogen respirator of this embodiment includes a reaction tank 1, a condenser 2, a connecting pipe 6 and a hydrogen suction nozzle 8. Among them, the reaction tank is cylindrical, and a feeding port 4 is provided on the top of the reaction tank to add a raw material package and a reaction liquid, and the raw material package and the reaction liquid produce hydrogen in the reaction tank. The condenser is cylindrical, including an outer sleeve, an inner sleeve sleeved in the outer sleeve, and an annular sleeve cover sealed above the outer sleeve and the inner sleeve; the outer sleeve and the inner sleeve are above the water inlet 5 of the condenser 2 to add condensate; the reaction tank 1 is placed in the inner sleeve, and the feeding port of the reaction tank is sealed by a circular tank cover. In order to facilitate installation and fixing, the annular sleeve cover is threadedly connected to the outer sleeve and the inner sleeve, and a sealing ring is provided on the annular sleeve cover to play a sealing role; the circular tank cover is threadedly connected to the reaction tank feeding port, and a sealing ring is provided on the circular tank cover to play a sealing role. Similarly, in order to fix and keep the condensate in the condenser tank at a low temperature, a heat-insulating fixing layer 3 is provided between the inner sleeve and the reaction tank 1. One end of the connecting pipe 6 is connected to the upper side of the reaction tank 1, and the other end extends into the condensation tank 2 and then extends downward to the bottom of the condensation tank and submerges in the condensate. The hydrogen absorption nozzle is connected to the upper side of the condensation tank 2 through the condensation tank air guide pipe 7.

[0035] In order to better introduce the hydrogen production method of the hydrogen breathing machine of the present invention, several examples are used for detailed description below.

[0036] Example 1

[0037] First, press Figure 1 The structure shown is assembled with a hydrogen respirator.

[0038] Secondly, 14 g of aluminum, 14 g of quicklime, 26 g of sodium carbonate and 5 g of sodium alginate were mixed and ground for 5 min, then put into a non-woven bag with a size of 8 cm×16 cm, and then sealed with a sealing machine to prepare a raw material bag.

[0039] Then, add 200mL and 500mL of tap water to the reaction tank 1 and condensation tank 2 respectively, tighten the water inlet of the condensation tank, put the prepared raw material package into the reaction tank, and tighten the feed port on the reaction tank; the reactants in the raw material package react with water, and the generated gas enters the condensation tank, and after condensation, it is provided for people to absorb hydrogen through the hydrogen absorption nozzle.

[0040] The hydrogen production process was measured and found to be as follows: Figure 2 shown.

[0041] Example 2

[0042] First, press Figure 1 The structure shown is assembled with a hydrogen respirator.

[0043] Secondly, 10 g of aluminum, 10 g of quicklime, 20 g of sodium carbonate and 5 g of sodium carboxymethyl cellulose were mixed and ground for 10 min, then loaded into a non-woven bag with a size of 8 cm×8 cm, and then sealed with a sealing machine to prepare a raw material bag.

[0044] Then, add 100mL and 400mL of mineral water to the reaction tank and condensation tank respectively, tighten the water inlet of the condensation tank, put the prepared raw material package into the reaction tank, and tighten the feeding port on the reaction tank; the reactants in the raw material package react with water, and the generated gas enters the condensation tank, and after condensation, it is provided for people to absorb hydrogen through the hydrogen absorption nozzle.

[0045] The hydrogen production process was measured and found to be as follows: Figure 3 shown.

[0046] Example 3

[0047] First, press Figure 1 The structure shown is assembled with a hydrogen respirator.

[0048] Secondly, 28 g of aluminum, 28 g of quicklime, 53 g of sodium carbonate and 10 g of sodium alginate were mixed and ground for 10 min, then put into a non-woven bag with a size of 15 cm×20 cm, and then sealed with a sealing machine.

[0049] Then, add 300mL and 600mL of distilled water to the reaction tank and condensation tank respectively, tighten the water inlet of the condensation tank, put the prepared raw material package into the reaction tank, and tighten the feeding port on the reaction tank; the reactants in the raw material package react with water, and the generated gas enters the condensation tank, and after condensation, it is provided for people to absorb hydrogen through the hydrogen absorption nozzle.

[0050] The hydrogen production process was measured and found to have a hydrogen production rate of approximately 600 mL / min. -1 .

[0051] Example 4

[0052] First, press Figure 1 The structure shown is assembled with a hydrogen respirator.

[0053] Secondly, 13.5 g aluminum, 18.4 g quicklime, 2.1 g sodium carbonate and 2.5 g sodium alginate were mixed and ground for 10 min, then put into a non-woven bag with a size of 8 cm×18 cm, and then sealed with a sealing machine.

[0054] Then, add 300 mL and 600 mL of distilled water to the reaction tank and condensation tank respectively, tighten the water inlet of the condensation tank, put the prepared raw material package into the reaction tank, and tighten the feeding port on the reaction tank; the reactants in the raw material package react with water, and the generated gas enters the condensation tank, and after condensation, it is provided for people to absorb hydrogen through the hydrogen absorption nozzle.

[0055] The hydrogen production process was measured and found to have a hydrogen production rate of approximately 190 mLmin -1 , the hydrogen production rate is Figure 4 shown.

[0056] Comparative Example 1

[0057] First, press Figure 1 The structure shown is assembled with a hydrogen respirator.

[0058] Secondly, 14 g of aluminum, 14 g of quicklime, and 26 g of sodium carbonate were mixed and ground for 5 min, then put into a non-woven bag with a size of 8 cm×16 cm, and then sealed with a sealing machine to prepare a raw material bag.

[0059] Then, add 200mL and 500mL of tap water to the reaction tank 1 and condensation tank 2 respectively, tighten the water inlet of the condensation tank, put the prepared raw material package into the reaction tank, and tighten the feed port on the reaction tank; the reactants in the raw material package react with water, and the generated gas enters the condensation tank, and after condensation, it is provided for people to absorb hydrogen through the hydrogen absorption nozzle.

[0060] Measurements of the hydrogen production process revealed that the hydrogen production rate was very unstable. It was very fast in the early stage, but the rate decayed quickly, making it unsuitable as a component of the hydrogen respirator raw material package (if sodium alginate or sodium carboxymethyl cellulose is not added or the amount added is very small, the hydrogen production is very unstable).

[0061] Comparative Example 2

[0062] First, press Figure 1 The structure shown is assembled with a hydrogen respirator.

[0063] Secondly, 14 g of aluminum, 14 g of quicklime and 5 g of sodium alginate were mixed and ground for 5 min, then put into a non-woven bag with a size of 8 cm×16 cm, and then sealed with a sealing machine to prepare a raw material bag.

[0064] Then, add 200mL and 500mL of tap water to the reaction tank 1 and condensation tank 2 respectively, tighten the water inlet of the condensation tank, put the prepared raw material package into the reaction tank, and tighten the feed port on the reaction tank; the reactants in the raw material package react with water, and the generated gas enters the condensation tank, and after condensation, it is provided for people to absorb hydrogen through the hydrogen absorption nozzle.

[0065] Measurements of the hydrogen production process revealed that the hydrogen production rate was very unstable. It was very fast in the early stage, but later on it was relatively stable but very low (<100 mL min-1), making it unsuitable as a component of the hydrogen respirator raw material package (hydrogen production was very unstable if sodium carbonate was not added or was added in very small amounts).

[0066] Comparative Example 3

[0067] First, press Figure 1 The structure shown is assembled with a hydrogen respirator.

[0068] Secondly, 14 g of aluminum, 26 g of sodium carbonate and 5 g of sodium alginate were mixed and ground for 5 min, then put into a non-woven bag with a size of 8 cm×16 cm, and then sealed with a sealing machine to prepare a raw material bag.

[0069] Then, add 200mL and 500mL of tap water to the reaction tank 1 and condensation tank 2 respectively, tighten the water inlet of the condensation tank, put the prepared raw material package into the reaction tank, and tighten the feed port on the reaction tank; the reactants in the raw material package react with water, and the generated gas enters the condensation tank, and after condensation, it is provided for people to absorb hydrogen through the hydrogen absorption nozzle.

[0070] Measurements of the hydrogen production process revealed that the hydrogen production rate was very low and was not suitable as a component of the hydrogen respirator raw material package (no quicklime was added or the amount added was very small and hydrogen production was very slow).

[0071] Comparative Example 4

[0072] First, press Figure 1 The structure shown is assembled with a hydrogen respirator.

[0073] Secondly, 14 g of aluminum, 14 g of quicklime, 26 g of sodium carbonate and 15 g of sodium alginate were mixed and ground for 5 min, then put into a non-woven bag with a size of 8 cm×16 cm, and then sealed with a sealing machine to prepare a raw material bag.

[0074] Then, add 200mL and 500mL of tap water to the reaction tank 1 and condensation tank 2 respectively, tighten the water inlet of the condensation tank, put the prepared raw material package into the reaction tank, and tighten the feed port on the reaction tank; the reactants in the raw material package react with water, and the generated gas enters the condensation tank, and after condensation, it is provided for people to absorb hydrogen through the hydrogen absorption nozzle.

[0075] The hydrogen production process was measured and found to have a very low hydrogen production rate (<100 mL min-1), making it unsuitable as a component of a hydrogen respirator raw material package. (If too much sodium alginate or sodium carboxymethyl cellulose is added, hydrogen production will be very slow.)

[0076] Comparative Example 5

[0077] First, press Figure 1 The structure shown is assembled with a hydrogen respirator.

[0078] Secondly, 14 g aluminum, 30 g quicklime, 30 g sodium carbonate and 5 g sodium alginate were mixed and ground for 5 min, then put into a non-woven bag with a size of 8 cm×16 cm, and then sealed with a sealing machine to prepare a raw material bag.

[0079] Then, add 200mL and 500mL of tap water to the reaction tank 1 and condensation tank 2 respectively, tighten the water inlet of the condensation tank, put the prepared raw material package into the reaction tank, and tighten the feed port on the reaction tank; the reactants in the raw material package react with water, and the generated gas enters the condensation tank, and after condensation, it is provided for people to absorb hydrogen through the hydrogen absorption nozzle.

[0080] Measurements of the hydrogen production process revealed that the hydrogen production rate was too fast (>800 mL min-1), making it unsuitable as a component of a hydrogen respirator raw material package (excessive amounts of quicklime and / or sodium carbonate added would result in rapid hydrogen production).

[0081] It can be seen that even if the structure of the present invention is adopted, but the raw materials and proportions of the present invention are not adopted, it is difficult to control the hydrogen production rate. However, by adopting the structure of the present invention and its raw material types and proportions, stable hydrogen production can be achieved, and the entire raw material powder is food-grade raw material, the hydrogen production rate is more stable and controllable, and compared with existing products, the cost is lower, the safety is stronger, and it is more convenient.

Claims

1. A method for producing hydrogen for a portable hydrogen breathing machine using aluminum water reaction to produce hydrogen as a hydrogen source, characterized in that: The following steps are involved: The condensate is added into the condensation tank (2) from the water inlet (5), and the annular barrel cover is tightened; the raw material package is added into the reaction tank (1) from the feed inlet (4), and the circular tank cover is tightened; the mixed powders in the raw material package react with each other, and the generated gas enters the condensation tank through the connecting pipe (6), and after condensation, it is provided to people for hydrogen absorption through the hydrogen absorption nozzle (8); A reaction tank (1), wherein a feed port (4) is provided at the top of the reaction tank for adding a raw material package and a reaction liquid, and the raw material package and the reaction liquid produce a hydrogen production reaction in the reaction tank; A condensation tank (2), wherein a water inlet (5) is provided at the top of the condensation tank for adding condensate; A connecting pipe (6), one end of which is connected to the upper side of the reaction tank (1), and the other end of which extends into the condensation tank (2) and then extends downward to the bottom of the condensation tank and is immersed in the condensate; A hydrogen suction nozzle (8), the hydrogen suction nozzle being connected to the upper side of the condensing tank (2) through the condensing tank air guide pipe (7); The condensation tank comprises an outer sleeve, an inner sleeve sleeved in the outer sleeve, and an annular sleeve cover sealedly connected to the outer sleeve and the inner sleeve; the reaction tank (1) is placed in the inner sleeve, and the feed port of the reaction tank is sealed by the circular tank cover; The preparation method of the raw material bag is as follows: aluminum, quicklime, sodium carbonate, sodium alginate or sodium carboxymethyl cellulose are weighed in a ratio of 1:1-2:0.1-2:0.1-1, then mixed and ground for 5-10 minutes, and then packed into a non-woven bag for sealing.

2. The method for producing hydrogen according to claim 1, characterized in that: The annular sleeve cover is threadedly connected with the outer sleeve and the inner sleeve; the circular tank cover is threadedly connected with the feed port of the reaction tank.

3. The method for producing hydrogen according to claim 2, characterized in that: A heat-insulating fixing layer (3) is provided between the inner sleeve and the reaction tank (1).

4. The method for producing hydrogen according to claim 1, characterized in that: The condensate and the reaction liquid are any one of tap water, mineral water and distilled water.

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