WO2018123033A1 - Method for producing hydrogen water - Google Patents

Abstract

[Problem] To provide a method for producing a high concentration of hydrogen water. [Solution] The present invention provides a method for producing hydrogen water, the method comprising: a degassing step for degassing raw water sealed in a pressure-resistant vessel 2; an aeration step in which the raw water degassed in the degassing step is aerated with hydrogen to maintain the pressurized state of the raw water and thereby produce hydrogen water from the raw water; and an agitation step for agitating the hydrogen water produced in the aeration step, wherein the raw water is degassed at a pressure of -67 kPa or less in the degassing step, the raw water is aerated with hydrogen for at least 15 minutes and is maintained in a pressurized state of 0.6 MPa or higher in the aeration step, and the hydrogen water is agitated for at least one minute using a vibrating or stirring mixer or the like in the agitation step.

Description

Hydrogen water production method

The present invention relates to a method for producing hydrogen water.

Conventionally, water containing hydrogen (hereinafter referred to as hydrogen water) has been used for the purposes of treatment, recovery from fatigue, beauty, and promotion of growth of agricultural products and livestock. Therefore, as a method for producing such hydrogen water, for example, a method has been proposed in which a mixed fluid obtained by mixing raw water and hydrogen water is passed through a porous element (see, for example, Patent Document 1).

JP 2016-155080 A

Here, the problem with hydrogen water is that the contained hydrogen escapes early. Therefore, if the hydrogen content of the produced hydrogen water is low, most of the hydrogen will be lost in the process of circulating to the consumer, and there is a possibility that the hydrogen water with a low hydrogen content will spread over the consumer. It is regarded as a problem. Therefore, a method for producing high-concentration hydrogen water has been desired.

The present invention has been made in view of the above, and an object thereof is to provide a method for producing high-concentration hydrogen water.

In order to solve the above-described problems and achieve the object, the hydrogen water production method according to claim 1 includes a deaeration step for degassing the raw water enclosed in a container, and a deaeration in the deaeration step. The raw material water is aerated to maintain the pressurized state of the raw material water, whereby an aeration step for producing hydrogen water from the raw material water and agitation of the hydrogen water produced in the aeration step A stirring step.

The method for producing hydrogen water according to claim 2 is the method for producing hydrogen water according to claim 1, wherein in the degassing step, the raw water is degassed at a pressure of −67 kPa or less.

The method for producing hydrogen water according to claim 3 is the method for producing hydrogen water according to claim 1 or 2, wherein in the aeration step, hydrogen is aerated over the raw water for 15 minutes or more. Maintain a pressurized state of 0.6 MPa or more.

The hydrogen water production method according to claim 4 is the hydrogen water production method according to any one of claims 1 to 3, wherein the hydrogen water is stirred for 1 minute or more in the stirring step.

According to the method for producing hydrogen water according to claim 1, the air dissolved in the raw water is extracted in the deaeration step so that hydrogen is easily dissolved, and the pressurized state of the raw water is maintained in the aeration step. Thus, hydrogen is suitably dissolved in the raw water, and the hydrogen concentration in the hydrogen water can be further increased by stirring the hydrogen water in the stirring step, whereby high concentration hydrogen water can be produced.

According to the method for producing hydrogen water according to claim 2, since the raw water is degassed at a pressure of −67 kPa or less in the degassing step, the air dissolved in the raw water can be more suitably extracted, Concentrated hydrogen water can be produced.

According to the method for producing hydrogen water according to claim 3, in the aeration step, hydrogen is aerated over the raw water for 15 minutes or more and the pressurized state of the raw water is kept at 0.6 MPa or higher. Thus, hydrogen can be more suitably dissolved, and more highly concentrated hydrogen water can be produced.

According to the method for producing hydrogen water according to claim 4, since the hydrogen water is stirred for 1 minute or more, the hydrogen concentration in the hydrogen water can be increased more suitably and uniformly, and a higher concentration hydrogen water is produced. be able to.

It is a block diagram showing functionally the hydrogen water manufacturing apparatus concerning an embodiment of the invention. It is a table | surface which shows the experimental results A to H which concern on a present Example.

Embodiments of a method for producing hydrogen water according to the present invention will be described below in detail with reference to the accompanying drawings. First, [I] the basic concept of the embodiment will be described, then [II] the specific content of the embodiment will be described, and finally, [III] a modification to the embodiment will be described. However, the present invention is not limited to the embodiments.

[I] Basic Concept of Embodiment First, the basic concept of the embodiment will be described. The embodiment relates to a hydrogen water production method for producing hydrogen water by dissolving hydrogen in raw water. Here, the use of hydrogen water produced by the hydrogen water production method is arbitrary, but in this embodiment, it is taken into the body and used. In addition, the method of taking in the body is arbitrary, and in the following, the case where the user drinks and uses it will be described. However, the present invention is not limited to this. And may be injected into the human body by a method such as infusion.

[II] Specific Contents of Embodiment Next, specific contents of the present embodiment will be described.

(Constitution)
FIG. 1 is a block diagram functionally conceptually showing a hydrogen water production apparatus 1 according to the present embodiment. As shown in FIG. 1, a hydrogen water production apparatus 1 according to this embodiment schematically includes a pressure vessel 2, a hydrogen generator 3, a bubbling stone 4, a vacuum pump 5, and a pressure gauge 6. .

(Configuration-Hydrogen water production equipment-Pressure vessel)
The pressure vessel 2 is a container for containing raw material water. The pressure vessel 2 is a vessel that can withstand pressure changes when deaerated by the vacuum pump 5 or when hydrogen is aerated in a pressurized state, and can be formed of any material such as glass or stainless steel. In the present embodiment, the upper end of the pressure vessel 2 is an opening, and a lid is provided to seal the gas so as not to leak from the opening. Tubes 7 and 8 penetrating the lid are provided, the tube 7 is connected to the vacuum pump 5, and the tube 8 is connected to the hydrogen generator 3.

(Configuration-Hydrogen water production device-Hydrogen generator)
The hydrogen generator 3 is a device that generates hydrogen. The hydrogen generator 3 can employ any configuration as long as it can generate hydrogen. For example, hydrogen (for example, aseptic water) is electrolyzed to produce hydrogen and oxygen, and only the produced hydrogen is taken out. You may use the well-known electrolysis means sent out to raw material water through the tube 8. FIG.

(Configuration-Hydrogen water production system-Bubbling stone)
The bubbling stone 4 is a means for making hydrogen into fine bubbles, and a known air stone or the like can be used. The bubbling stone 4 is attached to the tip of the tube 8, and hydrogen generated by the hydrogen generator 3 becomes bubbles through the bubbling stone 4 and is dissolved in the raw water. There are various types of bubbling stones 4 according to the fineness of bubbles to be generated. In the following, # 100 for generating fine bubbles and # 180 for generating finer bubbles are used. In addition, since the specific structure of such a bubbling stone 4 is well-known, detailed description is abbreviate | omitted.

(Configuration-Hydrogen water production equipment-Vacuum pump)
The vacuum pump 5 is pressure adjusting means for adjusting the pressure inside the pressure vessel 2. The vacuum pump 5 is connected to the inside of the pressure vessel 2 through the tube 7 as described above, and the inside of the pressure vessel 2 can be deaerated through the tube 7. Thus, by degassing the raw water before the hydrogen is dissolved in the raw water, the amount of hydrogen dissolved in the raw water can be increased by removing the air dissolved in the raw water. Hydrogen water with a larger hydrogen content can be generated.

(Configuration-Hydrogen water production system-Pressure gauge)
The pressure gauge 6 is a pressure measuring means for measuring the pressure inside the pressure-resistant vessel 2, and for example, a known elastic pressure gauge or liquid column pressure gauge can be used. The pressure gauge 6 is attached to the tube 7, and pressure is displayed by a display unit (for example, a part having a needle and a scale) according to the pressure inside the tube 7.

(Production method)
Then, the manufacturing method of hydrogenous water is demonstrated. This manufacturing process generally includes an encapsulation process, a deaeration process, an aeration process, an agitation process, and a filling process.

(Manufacturing method-encapsulation treatment)
First, an encapsulation process is performed. This enclosing process is an enclosing step of enclosing the raw water in the pressure vessel 2. Specifically, the raw material water is poured into the pressure vessel 2 and the lid is closed to form a sealed state. At this time, the tube 7 and the tube 8 pass through the lid, the tip of the tube 7 is positioned above the raw water surface, and the bubbling stone 4 attached to the tip of the tube 8 is immersed in the raw water.

(Manufacturing method-deaeration treatment)
Subsequently, a deaeration process is performed. This degassing process is a degassing step for degassing the raw water enclosed in the pressure vessel 2. Specifically, the vacuum pump 5 is operated, and the inside of the pressure vessel 2 is sucked through the tube 7 to be in a negative pressure state (for example, 40 kPa or less in absolute pressure). Bubbles pop out and air escapes from the raw water. The pressure inside the pressure vessel 2 during the degassing process is hereinafter referred to as “degassing pressure”, and the degassing pressure can be measured with the pressure gauge 6. Further, the duration of the deaeration process is hereinafter referred to as “deaeration time”. When the deaeration process is continued for a predetermined time (deaeration time; for example, 15 minutes), the vacuum pump 5 is stopped and the deaeration process is terminated.

(Manufacturing method-aeration treatment)
Subsequently, an aeration process is performed. This aeration process is an aeration step in which hydrogen water is aerated from the raw material water in the deaeration step to maintain the pressurized state of the raw material water, thereby producing hydrogen water from the raw material water. Specifically, the hydrogen generator 3 is operated and hydrogen is fed into the pressure vessel 2 through the tube 8, and at this time, hydrogen passes through the bubbling stone 4 to form fine bubbles into the raw water. Aerated. By performing aeration in this way, the inside of the pressure vessel 2 is in a pressurized state. The pressure may be adjusted by appropriately sucking with the vacuum pump 5. The pressure inside the pressure vessel 2 during the aeration process is hereinafter referred to as “hydrogen pressurization pressure”, and this hydrogen pressurization pressure can be measured with the pressure gauge 6. Further, the duration time of the aeration process is hereinafter referred to as “aeration time”. When the aeration process is continued for a predetermined time (aeration time; for example, 15 minutes), the hydrogen generator 3 is stopped and the aeration process is terminated.

(Manufacturing method-stirring process)
Subsequently, a stirring process is performed. This agitation process is an agitation step for agitating the hydrogen water produced in the aeration process. Specifically, the hydrogen water produced in the aeration process is stirred while the lid is closed. A specific method of this stirring is arbitrary, for example, the pressure vessel 2 may be stirred on a shaker or the like, or mechanically stirred using a mixer such as a pump using a vortex flow, In this embodiment, the operator of the manufacturing method manually stirs by holding the pressure vessel 2 and shaking it. The duration of this stirring process is hereinafter referred to as “stirring time”.

(Manufacturing method-filling process)
Finally, a filling process is performed. This filling process is a filling step in which the hydrogen water stirred in the stirring process is filled into an arbitrary container (for example, a PET bottle not shown below). Specifically, the lid of the pressure vessel 2 is removed, the tube 7, the tube 8, and the bubbling stone 4 are removed from the pressure vessel 2, and the hydrogen water inside the pressure vessel 2 is refilled into a plastic bottle to seal the plastic bottle. To do. It should be noted that the present invention is not limited to this method, and for example, it is possible to perform refilling while maintaining airtightness by providing a tube (not shown) on the lid and refilling the PET bottle with hydrogen water via this tube. Further, in this embodiment, in order to distribute the hydrogen water, such a filling process is performed and the hydrogen water is refilled. However, if the distribution is unnecessary, the filling process is omitted, for example, the inside of the pressure vessel 2 You can drink the hydrogen water directly.

(Example)
Then, the Example of the hydrogenous water manufacturing method is described. FIG. 2 is a table showing experimental results A to H according to this example. The items in each row in each experimental result in FIG. 2 indicate information (for example, experimental results A1, A2, and A3) that uniquely specify a single experimental result, and the items in each column indicate the parameters ( Hydrogen generation amount (ml / min), hydrogen pressurization pressure (MPa), raw material water temperature (° C.), aeration time (min), stirring time (min), roughness of stone (bubbling stone 4), deaeration time ( min), degassing pressure (kPa), hydrogen concentration (ppm)). In the following, as shown in the experimental results A to H of FIG. 2, an experiment for producing hydrogen water by the above production method by appropriately changing any of the parameters was performed, and parameters suitable for the production method were obtained. .

The experimental result A in FIG. 2 shows that the parameters other than the raw water temperature are fixed (the degassing time is fixed at 5 minutes), and the raw water temperature is in three stages: 0-10 ° C, 20-30 ° C, 40-50 ° C It is an experimental result when changing the hydrogen concentration of hydrogen water. In any of the experiments shown in FIG. 2, the hydrogen concentration was measured by applying a known determination method in which a methylene blue aqueous solution was dropped into the produced hydrogen water to check the color change of the aqueous solution. According to the experimental result A, it can be seen that the lower the raw water temperature, the higher the hydrogen concentration. In particular, it is possible to produce higher concentration hydrogen water by setting the raw water temperature to 0-10 ° C.

Further, in the experimental result B of FIG. 2, parameters other than the raw water temperature are fixed (degassing time is fixed at 10 minutes), and the raw water temperature is set to 0-10 ° C., 20-30 ° C., 40-50 ° C. It is an experimental result when changing the stage and measuring the hydrogen concentration of hydrogen water. According to this experimental result B, even when the degassing time is 10 minutes, as in the case where the degassing time shown in the experimental result A is 5 minutes, the lower the raw water temperature, the higher the hydrogen concentration, In particular, it can be seen that hydrogen water with a higher concentration can be produced by setting the raw water temperature to 0-10 ° C.

The experimental result C in FIG. 2 is an experimental result when the hydrogen concentration of hydrogen water is measured by fixing parameters other than the depressurization and changing the depressurization in two stages of -56 kPa and -67 kPa. According to the experimental result C, it can be seen that the degassing pressure is −67 kPa, the hydrogen concentration is high, and that hydrogen water with a higher concentration can be produced by reducing the degassing pressure.

The experimental result D in FIG. 2 shows experimental results when the hydrogen concentration of hydrogen water is measured by fixing parameters other than the deaeration time and changing the deaeration time in three steps of 5 minutes, 10 minutes, and 15 minutes. It is. According to the experimental result D, it can be seen that the degassing time is 15 minutes at the highest hydrogen concentration, and the longer the degassing time, the higher the concentration of hydrogen water can be produced. Although illustration is omitted, even if the deaeration time is made longer than 15 minutes, the hydrogen concentration of hydrogen water did not increase greatly, so it is considered that the deaeration time is 15 minutes. The experimental result D3 has produced the highest concentration (8.9 ppm) of hydrogen water among the experimental results shown in FIG. 2, and this concentration is extremely high compared to the conventional hydrogen water. It can be seen that the parameters of the experiment are suitable.

The experimental result E in FIG. 2 shows an experiment in which the hydrogen concentration of hydrogen water is measured by fixing parameters other than the hydrogen pressurization pressure and changing the hydrogen pressurization pressure in two stages of 0.5 MPa and 0.6 MPa. It is a result. According to the experimental result E, it can be seen that the hydrogen concentration is higher when the hydrogen pressurization pressure is 0.6 MPa, and that hydrogen water with a higher concentration can be produced by increasing the hydrogen pressurization pressure.

Experiment result F in FIG. 2 shows an experiment in which the hydrogen concentration of hydrogen water was measured by fixing parameters other than the aeration time and changing the aeration time in four stages of 2, 5, 10, and 15 minutes. It is a result. According to the experimental result F, it can be seen that the hydrogen concentration is the highest at 15 minutes and the hydrogen water with a higher concentration can be produced as the aeration time is longer. Although illustration is omitted, even if the aeration time is made longer than 15 minutes, the hydrogen concentration of hydrogen water did not increase greatly, so it is considered that the aeration time is sufficient for 15 minutes.

The experimental result G in FIG. 2 is an experimental result when the hydrogen concentration of hydrogen water is measured by fixing parameters other than the stirring time and changing the stirring time in three steps of 0 minutes, 0.5 minutes, and 1 minute. It is. According to the experimental result G, it can be seen that the stirring time is one minute at the highest hydrogen concentration, and the longer the stirring time, the higher the concentration of hydrogen water can be produced. In addition, although illustration is abbreviate | omitted, even if stirring time was further made longer than 1 minute, since the hydrogen concentration of hydrogen water did not increase largely, it is thought that stirring time is enough for 1 minute.

The experimental result H in FIG. 2 is obtained when the parameters other than the roughness of the bubbling stone 4 are fixed, the roughness of the bubbling stone 4 is changed in two stages, # 180 and # 100, and the hydrogen concentration of hydrogen water is measured. It is an experimental result. According to the experimental result H, it can be seen that the roughness of the bubbling stone 4 does not significantly affect the hydrogen concentration. Although not disclosed in the experimental result H, when the bubbling stone 4 is not provided, the hydrogen concentration of the hydrogen water decreases, which is not preferable.

(Effect of embodiment)
Thus, according to the method for producing hydrogen water of the present embodiment, the air dissolved in the raw water is removed in the deaeration step to make the hydrogen easy to dissolve, and the pressurized state of the raw water in the aeration step By maintaining the pH, hydrogen can be suitably dissolved in the raw water, and the hydrogen concentration in the hydrogen water can be further increased by stirring the hydrogen water in the stirring step, so that high-concentration hydrogen water can be produced. .

In the deaeration step, since the raw water is degassed at a pressure of −67 kPa or less, the air dissolved in the raw water can be extracted more suitably, and more highly concentrated hydrogen water can be produced.

Further, in the aeration step, hydrogen is aerated over the raw water for 15 minutes or more and the pressurized state of 0.6 MPa or higher of the raw water is maintained, so that hydrogen can be more suitably dissolved in the raw water, Furthermore, high concentration hydrogen water can be produced.

Moreover, since the hydrogen water is stirred for 1 minute or more, the hydrogen concentration in the hydrogen water can be increased more suitably and uniformly, and a higher concentration hydrogen water can be produced.

[Modifications to Embodiment]
Although the embodiments of the present invention have been described above, the specific configuration and means of the present invention can be arbitrarily modified and improved within the scope of the technical idea of each invention described in the claims. Can do. Hereinafter, such a modification will be described.

(About problems to be solved and effects of the invention)
First, the problems to be solved by the invention and the effects of the invention are not limited to the above contents, and may vary depending on the implementation environment and details of the configuration of the invention. May be solved, or only some of the effects described above may be achieved.

(About dimensions and materials)
The dimensions, shapes, materials, ratios, and the like of the respective parts of the hydrogen water production apparatus 1 described in the detailed description of the invention and the drawings are merely examples, and other arbitrary dimensions, shapes, materials, ratios, and the like can be used. .

(Appendix)
The method for producing hydrogen water according to appendix 1 includes a deaeration step for degassing the raw material water sealed in a container, and aeration of hydrogen to the raw material water degassed in the deaeration step to add the raw material water. Maintaining the pressure state includes an aeration step for producing hydrogen water from the raw water, and an agitation step for stirring the hydrogen water produced in the aeration step.

The method for producing hydrogen water according to appendix 2 is the method for producing hydrogen water according to appendix 1, wherein in the degassing step, the raw water is degassed at a pressure of −67 kPa or less.

The method for producing hydrogen water according to appendix 3 is the method for producing hydrogen water according to appendix 1 or 2, wherein in the aeration step, hydrogen is aerated over the raw water for 15 minutes or more, and the raw water is 0.6 MPa or more. The pressure state is maintained.

The hydrogen water production method according to appendix 4 is the hydrogen water production method according to any one of appendices 1 to 3, wherein the hydrogen water is stirred for 1 minute or more in the stirring step.

(Additional effects)
According to the hydrogen water production method described in appendix 1, the air dissolved in the raw water is removed in the deaeration step so that hydrogen is easily dissolved, and the pressurized state of the raw water is maintained in the aeration step. Thus, by suitably dissolving hydrogen in the raw water and stirring the hydrogen water in the stirring step, the hydrogen concentration in the hydrogen water can be further increased, and high concentration hydrogen water can be produced.

According to the method for producing hydrogen water described in appendix 2, since the raw water is degassed at a pressure of −67 kPa or less in the deaeration step, the air dissolved in the raw water can be more suitably removed, and a higher concentration can be obtained. Hydrogen water can be produced.

According to the method for producing hydrogen water described in Supplementary Note 3, in the aeration step, hydrogen is aerated over the raw water for 15 minutes or more and the pressurized state of 0.6 MPa or higher of the raw water is maintained. Hydrogen can be dissolved more suitably, and more highly concentrated hydrogen water can be produced.

According to the method for producing hydrogen water described in appendix 4, the hydrogen water is stirred for 1 minute or more, so that the hydrogen concentration in the hydrogen water can be more suitably and uniformly increased, and a higher concentration hydrogen water is produced. Can do.

DESCRIPTION OF SYMBOLS 1 Hydrogen water production apparatus 2 Pressure-resistant container 3 Hydrogen generator 4 Bubbling stone 5 Vacuum pump 6 Pressure gauge 7, 8 Tube

Claims (4)

1. A degassing step for degassing the raw water enclosed in the container;
   Aeration step of producing hydrogen water from the raw water by aeration of the raw water degassed in the degassing step and maintaining the pressurized state of the raw water;
   Agitating step of agitating the hydrogen water produced in the aeration step.
   Hydrogen water production method.
2. In the degassing step, the raw water is degassed at a pressure of −67 kPa or less.
   The method for producing hydrogen water according to claim 1.
3. In the aeration step, hydrogen is aerated over the raw water for 15 minutes or more, and the pressurized state of 0.6 MPa or higher of the raw water is maintained.
   The method for producing hydrogen water according to claim 1 or 2.
4. In the stirring step, the hydrogen water is stirred for 1 minute or more.
   The method for producing hydrogen water according to any one of claims 1 to 3.
   

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